ЦЕНТРОБЕЖНЫЙ КОМПРЕССОРНЫЙ АГРЕГАТ

Изобретение относится к области компрессоростроения, преимущественно к герметичным осевым и центробежным компрессорам со встроенным высокооборотным электроприводом без смазки в опорах ротора. Центробежный компрессорный агрегат содержит электродвигатель, имеющий статор и ротор с валом, установленным на подшипниках, и узел сжатия, включающий лопатки, при этом упомянутые узлы расположены в герметичном корпусе, причем статор электродвигателя установлен внутри охватывающего его полого ротора электродвигателя, выполненного с лопатками и образующего роторную часть узла сжатия, статорная часть которого расположена на герметичном корпусе и выполнена в виде лопаток, закрепленных на герметичном корпусе. Техническим результатом изобретения является повышение эксплуатационной надежности герметичного компрессорного агрегата, снижение эксплуатационных затрат, снижение объемов работ при техобслуживании и ремонте, уменьшение числа контролируемых параметров, уменьшение массогабаритных характеристик. 2 з.п ...

ВЕНТИЛЯТОР

... 1. Вентилятор, в частности, для применения в технике кондиционирования и технике охлаждения, состоящий из корпуса, крыльчатки, которая установлена с возможностью вращения вокруг центральной оси, приводного двигателя и защитной решетки, отличающийся тем, что в целиком изготовленном из синтетического материала корпусе (1) интегрированы струйные элементы подающего сопла (1.1), имеющая форму цилиндра направляющая (1.2) потока, спрямляющие лопасти (1.3) и диффузор (1.5), причем спрямляющие лопасти (1.3) одновременно предназначены для присоединения крепления (1.4) двигателя к наружному контуру, и на корпусе (1) имеется устройство, на котором может быть установлена защитная решетка (3), в частности, в виде ячеистой решетки, причем радиально наружу лежащие концы (2.3) лопастей (2.1) крыльчатки (2) выполнены в виде специальных струйных элементов (винглетов), которые имеют особенно малый зазор с боковой стенкой (1, 2), причем приводной двигатель (5) представлен двигателем с внешним ротором, который ...

Luminescent cooling fan, has controller comprising two circuit plates that are electrically connected with one another, where free end of one plate is rounded at side, such that form of plate corresponds to section of one of blades

The fan has a blade wheel (11) comprising a hub (111) and blades (112), where the hub is provided with a front wall and a side wall. The blades run out from the side wall, where one of the blades has a section. A controller (12) has two circuit plates (121, 122) that are electrically connected with one another, and an illuminant is provided on one of the plates, where the illuminant is controlled by the other plate. The plate (121) runs through a slot, where a free end of the plate (121) is rounded at a side, such that the form of the plate (121) corresponds to the section.

Schwingungsfeste Ventilator-Konstruktion

Kühleranordnung mit Stoßdämpfung

Kühleranordnung mit Stoßdämpfung, die aus einem Kühler (10) und mindestens einer stoßdämpfenden Zapfenverbindung (20) besteht, dadurch gekennzeichnet, dass der Kühler (10) einen Rahmen (11) zur Positionierung und Montierung eines Schaufelsatzes (101) aufweist, wobei der Kühler (10) einen Rahmen (11) aufweist, an dessen Umfang mindestens ein Befestigungslager (12) angeordnet ist; dass die stoßdämpfende Zapfenverbindung (20) mit dem Befestigungslager (12) verbunden ist, wobei sich von mindestens einer zur Axialrichtung senkrecht stehenden Stirnseite ein Befestigungsschaft (21) erstreckt, wobei an der Stelle, an der der Befestigungsschaft (21) an die Stirnseite der stoßdämpfenden Zapfenverbindung (20) angeschlossen ist, eine nach innen eingebuchtete Positioniernut (22) ausgebildet ist, mittels der der Kühler (10) an einem Gehäuse (90) fixiert ist; und dass, nachdem die stoßdämpfende Zapfenverbindung (20) am Befestigungslager (12) befestigt worden ist, die beiden senkrecht zur Axialrichtung ...

Lüfter

Lüfter, umfassend- ein Gehäuse (10, 10A);- einen Statorsatz (20), der im Gehäuse (10; 10A) angeordnet ist; und- ein Laufrad (30, 30A, 30B), das drehbar im Gehäuse (10, 10A) angebracht ist, wobei das Laufrad (30, 30A, 30B) einen Laufrad-Hauptkörper (31, 31A, 31B), eine Radachse (32) und einen Magnetring (33) umfasst, wobei der Laufrad-Hauptkörper (31) eine Nabe (311, 311A, 311B) und eine Vielzahl von an der äußeren Umfangsfläche der Nabe (311, 311A, 311B) ringförmig angeordneten Schaufeln (312) umfasst, wobei die Radachse (32) in der Mitte der Nabe (311, 311A, 311B) angeordnet und im Gehäuse (10, 10A) drehbar gelagert ist, wobei der Magnetring (33) in der Nabe (311, 311A, 311B) ringförmig angebracht und gegenüber dem Statorsatz (20) so angeordnet ist, dass Luftspalte zwischen dem Magnetring (33) und dem Statorsatz (20) vorhanden sind, wobei das Verhältnis des Durchmessers der Nabe (311, 311A, 311B) zum Durchmesser des Außenrandes eines Schaufelaufbaus (A) aus einer Vielzahl von an der äußeren ...

Verbindungsstruktur von reihenverbundenen Ventilatoren

Verbindungsstruktur von reihenverbundenen Ventilatoren, umfassend einen ersten Ventilator (2) mit einem ersten Montageteil (21) und einen zweiten Ventilator (3), und einen Verbinder (4), der einen Boden (41) und zwei Seitenwände (42), die sich von den beiden Seiten des Bodens (41) nach oben erstrecken, aufweist, wodurch der Boden (41) und die Seitenwände (42) einen Aufnahmeraum (43) definieren, die eine erste offene Seite (44), die dem Boden (41) gegenüberliegt, und zweite offene Seiten (45), die sich an den gegenüberliegen Seiten des Aufnahmeraums (43) befinden, besitzt, wobei der erste Ventilator (2) durch die erste offene Seite (44) mit dem Verbinder (4) verbunden wird, wobei der erste Montageteil (21) mit den Seitenwänden (42) verbunden wird, und der zweite Ventilator (3) auch durch die erste offene (44) Seite mit den Seitenwänden (42) verbunden wird, wodurch der erste und zweite Ventilator (2, 3) durch den Verbinder (4) reihenverbunden werden.

Ventilatoreinheit mit einem elektrischen Axialventilator

Die Erfindung betrifft eine Ventilatoreinheit (1) mit einem festen Tragring (2) und einem in dem Tragring (2) angeordneten elektrischen Axialventilator (3), wobei der Tragring (2) mittels Aufhängegliedern (6) in einem Montagegehäuse (7) befestigt ist. Zur verbesserten Schwingungs- und Geräuschdämpfung wird vorgeschlagen, dass der Tragring (2) mehrere umfangsverteilt angeordnete Haltezapfen (9) aufweist, die zum Aufstecken jeweils eines aus einem elastomeren Werkstoff bestehenden Aufhängeglieds (6) ausgebildet sind, und die Aufhängeglieder (6) korrespondierende Stecköffnungen (10) zum Aufstecken auf die Haltezapfen (9) aufweisen.

SAUGVORRICHTUNG

Lüfter insbesondere zur Belüftung von elektronischen Geräten

Die Erfindung betrifft Lüfter insbesondere für Personalcomputer, bei dem zur Geräuschminimierung folgende Merkmalskombination vorgeschlagen wird: DOLLAR A a) einem einen Strömungskanal (24) außenseitig durch eine Leitfläche (22) begrenzenden Lüftergehäuse (10), DOLLAR A b) einem in dem Lüftergehäuse (10) um eine Drehachse (12) drehbar gelagerten, mit seiner Nabe (14) den Strömungskanal (24) innenseitig begrenzenden Laufrad (18), DOLLAR A c) einem in der Nabe (14) angeordneten Drehantrieb (20) für das Laufrad (18), DOLLAR A d) die über den Umfang der Nabe (14) asymmetrisch verteilten Schaufeln (16) des Laufrads (18) sind als Radialschaufeln ausgebildet, DOLLAR A e) die Leitfläche (22) und die Nabe (14) sind im Schaufelbereich zwischen Schaufeleintrittskante (34) und Schaufelaustrittskante (36) in Durchströmrichtung gesehen konisch oder schwach gekrümmt sich erweiternd ausgebildet, wobei die lichte Durchströmfläche des Strömungskanals (24) konstant bleibt oder sich verringert.

Brennergebläse für Gas-Vormischbrenner

Lüfter, Motor und dessen Herstellungsverfahren

... [Zu lösendes Problem] Bereitstellen eines wasserdichten Lüfters ohne dabei eine Gussform zu verwenden, mit der ein Kunstharz-Formteil ausgeformt wird. [Lösung des Problems] Ein Lüfter gemäß der vorliegenden Erfindung umfassend: ein Gehäuse 11, das einen im Wesentlichen becherförmigen Basisabschnitt 11B beinhaltet, der durch eine Rippe 11c mit einem äußeren Rahmen 11A verbunden ist, wobei der Basisabschnitt 11B eine obere Fläche 11a hat, die auf einer axial oberen Seite angeordnet ist, und eine untere Öffnung 17, die auf einer axial unteren Seite angeordnet ist, ein Lagergehäuse 19, das sich von einer Mitte der oberen Fläche des Basisabschnitts 11B in Richtung der unteren Öffnung 17 erstreckt, einen Stator-Gehäuseabschnitt 16, gebildet durch den Basisabschnitt 11B und das Lagergehäuse 19, einen Stator 13b, der eine Leiterplatte 23 hat, die im Stator-Gehäuseabschnitt 16 angeordnet wird indem sie an einer äußeren Umfangsfläche des Lagergehäuses 19 befestigt wird, Lager 24a, 24b, die an einer ...

Axialventilator mit Bypasskanal im Elektronikgehäuse

Die Erfindung betrifft einen Axialventilator (1) mit einem Motor (2) und einem über den Motor (2) antreibbaren und um eine Rotationsachse (RA) rotierbaren Ventilatorrad (3), das den Motor (2) radial außenseitig umschließend angeordnet ist und im Betrieb einen Ausblasluftstrom von einer Saugseite (S) zu einer Druckseite (D) erzeugt, wobei axial angrenzend an dem Motor (2) eine Motorelektronik (4) in einem Elektronikgehäuse (8) aufgenommen angeordnet ist, wobei in dem Elektronikgehäuse (8) mindestens ein durchgängiger Bypasskanal (9) ausgebildet ist, der sich von einer Einströmöffnung (7) an einer dem Ventilatorrad (3) gegenüberliegenden axialen Stirnseite des Elektronikgehäuses (8) in axialer Richtung bis zu der Motorelektronik (4) erstreckt und anschließend nach radial außen entlang der Motorelektronik (4) bis zu einer radialen Ausströmöffnung (6) an dem Elektronikgehäuse (8) verläuft, und wobei die Ausströmöffnung (6) auf der Druckseite oder angrenzend zur Druckseite ausgebildet ist, so ...

ELEKTRONISCHE STEUERUNGSEINHEIT

Eine elektronische Steuerungseinheit enthält eine Leiterplatte (30), das eine Steuerungsschaltkreiseinheit (34) darauf hat, ein Gehäuse (20), das die Leiterplatte (30) unterbringt und eine Lüftereinheit (40), die konfiguriert ist, um das Gehäuse (20) zu kühlen. Die Lüftereinheit (40) enthält einen Ventilator (41) und eine staubdichte Abdeckung (42, 50). Der Ventilator (41) ist angeordnet, um in einer Ebene, die parallel zu einer Montagefläche (21a) des Gehäuses (20), auf der die Lüftereinheit (40) montiert ist, ist, zu rotieren. Die staubdichte Abdeckung (42, 50) bedeckt den Ventilator (41) und hat eine Saugöffnung (423, 523) an einer Position, die zu dem Gehäuse (20) in Bezug auf den Ventilator (41) entgegengesetzt ist, und eine Auslassöffnung (424, 524) an einer Position zwischen der Montagefläche (21a) und dem Ventilator (41). Die Steuerungsschaltkreiseinheit (34) hat, als die Steuerungsmodi zum Steuern der Lüftereinheit (40), einen normalen Steuerungsmodus, um den Ventilator (41) in ...

Lüfter und Laufrad davon

Ein Laufrad umfasst eine Nabe und eine Vielzahl von Blättern, die um eine Außenwand der Nabe herum angeordnet sind. Jedes der Blätter weist eine Vorderkante mit einem vorbestimmten Abstand unterhalb zur Oberseite der Nabe und eine Hinterkante auf, die vom Boden der Nabe hervorragt. Ein Lüfter mit einem solchen Laufrad ist ebenfalls vorgesehen.

Blower e.g. diagonal blower, for cooling of electronic device, has conducting element with air passage opening, and check valve proided at exhaust side of air passage opening for partially closing air passage opening in closing position

The blower has a blower housing with an air inlet opening, an air outlet opening and a conducting element (30), which is provided in an area of the air inlet opening. The conducting element is designed in such a manner that the conducting element partially converts twist of the air, escaping from the blower during operation, into static pressure. The conducting element has an air passage opening, and a check valve (72) is provided at an exhaust side of the air passage opening for partially closing the air passage opening in a closing position.

Fan module

Heat dissipating fan

A heat-dissipating fan (100) has a housing (2) and an impeller (1). The housing (2) has a receiving space (21) forming an airflow inlet and an airflow outlet and at least one or more guide ring (26). The guide rings (26) are mounted near the airflow outlet and have each one or two a guide surfaces (27) facing the airflow inlet. The impeller (1) is mounted rotable in the receiving space (21) and has multiple blades (13). Airflow channels (14) formed between adjacent blades (13) each have a cross-section narrowed from a top end of the guide ring (26) to the airflow outlet. Each blade (13) has a receiving notch (131) formed in a bottom edge therof and corresponding to a cross-section of the guide ring (26). Airflow is speeded up in the airflow channels (14) based on Venturi effect, such that a heat-dissipating efficiency of the fan (100) is improved.

Heat-dissipating fan

AXIAL FANS

ELECTRONICALLY KOMMUTIERTER ENGINE

BURNER BLOWER FOR GAS BEFORE MIXTURE BURNERS

ELECTRIC MOTOR WITH HIGH IP ENCLOSURE

FLAT LÜFTERGEHÄUSE WITH HEAT CONDUCTING CHARACTERISTICS

Radialgebläse

Fan for bathrooms

For the aeration of certain internally situated rooms, such as bathrooms or toilets, a fan is used, which has a fan motor (1) with impeller (5) and mounting (4). The fan motor (1) is mounted inside a fan pipe (2). On the end side of the fan motor (1) lying opposite the impeller (5), a follow-up relay (3) is mounted as an integral unit with the fan motor (1). The assembly of the follow-up relay (3) and the fan motor (1) to form an integral structural unit frees the installer from any additional work of mounting the follow-up relay in any other place. The follow-up relay (3) occupies a space inside the fan pipe (2), which is in any case free as a result of the obliquely directed mountings (4). ...

Axial blower

An axial-flow fan according to the present disclosure can increase the amount of the airflow and simultaneously reduce the noise level. A plurality of stationary blades are curved, in a convex manner, toward a rotating direction of an impeller. The plurality of stationary blades to are generally inclined so that discharge-side edge portions thereof are located more forward than suction-side edge portions thereof in the rotating direction. An inclination angle theta of each of the plurality of stationary blades to in the vicinity of the external end portion a is larger than the inclination angle theta in the vicinity of the internal end portion. The inclination angle is gradually changed from the vicinity of the external end portion a toward the vicinity of the internal end portion .

Centrifugal fan

Air supply fan

Fan motor

has the axialflow wind direction of the centrifugal fan

Axial-flow blower

Provided is an axial-flow blower with a wide range of selection for placement of the blower and wiring of the lead wires. The blower is provided with a first lead wire fastening part (17) with which multiple lead wires (15) are fastened for pulling into an outside space (OS) between a first flange (21) and a second flange (23) of a fan housing (3), a second lead wire fastening part (19) with which the multiple lead wires 15 fastened in the first lead wire fastening part (17) and pulled into the outside space (OS) are fastened for pulling to the other side in the axial direction where the second flange (23) is positioned, and a third lead wire fastening part (27) with which the multiple lead wires 15 fastened in the first lead wire fastening part (17) and pulled into the outside space (OS) are fastened for pulling out to one side in the axial direction where the first flange (21) is positioned. The third lead wire fastening part (27) is formed at a prescribed distance from the first lead ...

DRIVE UNIT FOR DUAL FAN.

ACTUATION OF the BLADES Of a NONDUCTED BLOWER

FAN IN AN AIR-CONDITIONER TO IMPROVE FLOW OF AIR AND TO REDUCE NOISE IN AN AIR OUTLET PORTION OF A HUB BY FORMING THE AIR OUTLET PORTION GETTING LARGER OUTWARD

PURPOSE: A fan in an air-conditioner is provided to minimize concentration of air at the center of an air outlet grill which is relatively less hard by discharging the air to spread in a hub area. CONSTITUTION: A fan in an air-conditioner includes a hub(110), a motor(40), and blades. The hub has a receiving groove(113) and is divided into an air inlet portion(111) and an air outlet portion(112). The air outlet portion gets larger toward the air outlet side at an angle of θ. The motor is inserted and coupled in the receiving groove to shorten a coupling length between the motor and the fan. The shortened coupling length between the motor and the fan allows installation space reduction in a case and vibration reduction of the fan. The blades are arranged on the outer circumference of the hub. © KIPO 2008 ...

Centrifugal fan

A centrifugal fan is disclosed. The centrifugal fan includes a fan device and a case. The fan device includes an impeller and a plurality of blades, wherein the plurality of blades is mounted apart around the impeller. The case is provided to allow the fan device to be disposed and rotated inside it. The case includes a top cover, a bottom cover and a side wall. The side wall is mounted between the top cover and the bottom cover. The side wall includes a fixed part and a deformable part. The fixed part is connected with the top cover and the bottom cover, and the deformable part is connected with the fixed part.

Impeller, fan and method for manufacturing fan blade

An impeller includes a hub and a plurality of blade plates. The hub includes a hub body and a plurality of installation portions at the hub body. Each blade plate includes a plurality of blades and a folding portion. The folding portion is connected to one end of each blade. The folding portions are respectively installed at the installation portions.

Fan apparatus

A fan apparatus includes a cooling fan and a guide member attached to the cooling fan. The cooling fan defines an air inlet and an air outlet at two opposite sides thereof, respectively. The guide member is mounted at the air outlet of the cooling fan. The guide member includes a mounting portion located beside the air outlet and connected to an outer periphery of the cooling fan, and a cover portion extending from the mounting portion towards a central area of the air outlet. The cover portion is pivotally connected with the mounting portion, such that the cover portion is capable of rotating with respect to the mounting portion. When the cooling fan works, the cover portion is able to rotate relative to the mounting portion due to a force of an airflow produced by the cooling fan, to allow the airflow flows away from the air outlet; when the cooling fan ceases, the cover portion is able to rotate relative to the mounting portion to cover the air outlet of the cooling fan.

Low profile cooling fan

A low profile cooling fan includes a housing and an impeller rotatably received in the housing. The impeller includes a hub, a supporting structure surrounding the hub, and a number of blades positioned on the supporting structure. The blades are made by magnesium aluminum alloy.

Structure of quick release type wire-free cooling fan

Computing device, dual rotor fan, and cooling system

A computing device includes a fan housing and a controller. The fan housing includes a dual rotor fan having a first rotor and a second rotor. The controller communicatively coupled to the dual rotor fan, and the controller being operable to: detecting a failure associated with the first rotor; and in response to detecting the failure, drive the second rotor at a higher speed than a fan-speed at which the second rotor was being driven before the failure of the first rotor.

Fan module

A fan module including a wheel body and a plurality of blades disposed on the wheel body is provided. The wheel body has a rotating axis and the wheel body is telescopic along the rotating axis to have an elongated state and a shortened state. At least a portion of each of the blades is flexible, and the bending state of each blade is changed along with the elongated state or the shortened state of the wheel body. An axial size of each blade along the rotating axis when the wheel body is in the elongated state, is larger than an axial size of each blade along the rotating axis when the wheel body is in the shortened state.

Fan with light

The present invention provides a fan with light including: a support structure, a main circuit board, a light guide fan wheel and a light module. Said light guide fan wheel is pivotally linked with the bracket of the supporting structure. The light module is disposed in the hub of the light guide fan wheel. The light module emits a light to an adjacent lens element. The light is refracted by a secondary optical lens of the lens element and transmitted to light guide fan wheel to light it.

Air-extracting type heat dissipating apparatus

AXIAL FAN AND METHOD OF MANUFACTURING THE SAME

An axial fan (A) includes sloping surfaces (11a, 11b) arranged at an inner peripheral surface of an air channel portion (10) that are shaped such that an air passage is enlarged in a cross sectional area in a direction normal or substantially normal to a central axis (J1). The inner peripheral surface of the air channel portion (10) also includes a straight surface (lie) at which area the distance between the central axis (J1) and the inner peripheral surface of the air channel portion (10) is substantially constant. Also, the straight surface (11c) of the air channel portion (10) includes a plurality of slits (110) each penetrating the air channel portion.

HEAT RADIATION FAN

A heat radiation fan which could be installed on corresponding position of the heat-radiating fins of a CPU or a heat-radiating hole-plate of a computer cabinet, includes: a fan body (3), a fan frame (2) and a fan impeller (1). The fan frame (2) is circular in shape. The fan body (3) is arranged along the outer circumference of the fan frame (2). The fan impeller (1) is installed in the fan frame (2). A rubber layer (4) is arranged at the outer surface of the fan body (3), and the place that touches the eat-radiating fins at upside and downside edges of the fan frame (2). The rubber layer (4) is formed by secondary injection molding. Through holes (31) are set through the upper and lower part at four end corners of the fan body (3). The rubber layers are also set at the inner surfaces of the through holes, after secondary injection molding, the upside edges of the through holes keep level with corresponding upside and downside edges of the fan frame (2). The invention can achieve flexible ...

CEILING FAN

A ceiling fan includes a coupling part (2), a main body part (3), and a motor part (4). The motor part includes a coil part (6), an upper motor cover part (7), a lower motor cover part (8), and a rotor part (10) located at an outer periphery of the coil part. The rotor part is provided with a plurality of blades (5) in a horizontal direction, the upper motor cover part and the rotor part are provided integrally and rotatably to the coupling part, and a first space portion (10a) is provided between the upper motor cover part and the rotor part. The upper motor cover part has a plurality of first and second holes (16a,16b), and the second holes are located at an outer periphery relative to the first holes, and a plurality of fins (11) are provided on a lower surface of the upper motor cover part.

Diagonal fan

A diagonal fan has a diagonal fan impeller (1) which is fastened to a rotor (2) of an external rotor motor (3) and which is arranged between a front plate (5), which has an in particular central inflow opening (6), and a motor bracket (4). The motor bracket (4) is connected to the front plate (5) via a plurality of peripherally arranged spacers (21). Here, the front plate (5) and the motor bracket (4) are formed as plastic or metal injection molded parts. The spacers (21) are formed, as plastic or metal injection parts, in one piece with the front plate (5) or with the motor bracket (4).

MOTOR STRUCTURE

A motor structure comprises a rotor having a driving portion and a magnetic element; the magnetic element being assembled to a lower end of the driving portion; and a stator including an electrode sheet, a coil, and a seat; the coil winding around a stator flame assembling the seat; a magnetic induction portion being protruded from the electrode sheet; and the electrode sheet being installed to the seat. The rotor is pivotally installed to the stator and the magnetic induction portion of the electrode sheet is arranged corresponding to the magnetic element so that after conduction, the coil is interacted with the magnetic element by using phase differences therebetween.

Fan frame

A fan frame, which embodies a blade assembly and a motor therein, has at least one LED socket mounted on a side thereof and having a hole and at least one set of snapping retention extended from both sides of the hole, and at least one light emitting diode mounted in its corresponding LED socket, wherein at least one set of snapping retention clips the rear portion of the light emitting diode after it is inserted into the hole.

FAN WITH INTEGRATED NONRETURN FLAPS

A fan structure, suitable for rack-mounting adjacent to heat-generating electrical equipment, features an improved noise-damping outflow baffle containing a plurality of non-return flaps, serving to prevent reverse flow of air when fan activity is interrupted. In a preferred embodiment, four generally sickle-shaped flaps are used, each connected, along a straight edge thereof, by a pair of elastomeric hinge connections to a surrounding frame. The hinge connections urge the flaps closed whenever they are not forced by airflow into an open orientation. The axes of rotation of the flaps are chosen to keep them from jamming against one another. Since the flaps act as vanes, tending to straighten out an originally helical flow of air induced by the fan, they minimize the pressure drop which has therefore been associated with outflow baffles. The use or elastomers at critical points in the structure reduce noise and clatter.

AXIAL FAN UNIT HAVING COAXIALLY ARRANGED AXIAL FANS

First and second axial fans are coaxially connected to each other. Each axial fan includes an impeller rotatable about a center axis; a motor rotating the impeller about the center axis, a housing member surrounding the impeller and having a hollow body and approximately square flanges at axial ends of the body, and a group of wires electrically connected to the motor. The axial fans are joined together with their flanges coincident with each other as seen along the center axis. The housing member is provided with first and second receiving portions at least one flange on a center-axis side of an outer periphery of the flange. The groups of wires of the axial fans are pulled out therefrom and extend axially toward a side of the first axial fan opposite to the second axial fan, with passing through the first and second receiving portions, respectively.

Side-vented axial fan and associated fabrication methods

An axial flow cooling fan includes a rectangular housing base portion and a plurality of rectangular plate members, all having corner portions and central circular air flow openings. The plate members have corner openings and integral hollow cylindrical spacer members formed on side surfaces of their corner portions and aligned with their corner openings. To construct the housing subassembly the base portion post members are sequentially inserted through the corner openings of each plate member. Resilient finger structures on the outer ends of the post members create a snap-fitted locking engagement with the outermost plate member and anchor the plate members in a stacked, parallel relationship in which the installed plate members are held apart by their integral spacer portions to create side air inlet openings on the subassembly at edge portions of the stacked plate members. The housing base portion has a motor-driven impeller section operatively supported within its central air flow ...

Cooling fan

A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.

CARD-BASED EXTENSION COOLING

An information handling system may include a circuit board that includes a plurality of expansion slots. The information handling system may further include a cooling card coupled to at least one of the plurality of expansion slots, and a processor coupled to the circuit board (but where the cooling card does not contain the processor). Further, the processor may include a heat exchanger coupled thereto. The cooling card may include a heatsink, and a fluid channel thermally coupled to the heatsink, the fluid channel being fluidically coupled to the heat exchanger.

Air fan damping structure

An air fan damping structure is installed on an air fan which has a fan frame. The fan frame has an air inlet, an air outlet and a housing space between them to hold a fan blade assembly. The damping structure includes a first buffer and a holding member located on the fan frame. The first buffer is hollow and has a through hole, and a first anchor portion to form an anchor relationship with a second anchor portion formed on the fan frame. The holding member has an inserting portion to run through the through hole and a depressing portion connecting to the inserting portion to receive a force to allow the inserting portion to run through the through hole. The inserting portion and the through hole have respectively a first retaining portion and a second retaining portion to form a retaining relationship.

Light-emitting fan

A light-emitting fan includes a frame, a vane, at least one flexible circuit structures, and a plurality of light-emitting elements. The van is pivotally provided on the frame. The van has a hub and a plurality of blades connected to the hub. The flexible circuit structure is circumferentially provided on the frame. The light-emitting elements are provided on the flexible circuit structure to emit light respectively. With the above arrangement, the light-emitting elements can be combined with the frame easily via the flexible circuit structure.

Arrangement and method for removing heat from a component which is to be cooled

An arrangement, for heat dissipation from a component that is to be cooled, features: a pump for pumping a coolant, which pump comprises a pump rotor; a fan that comprises a fan rotor associated with which is an electric motor to drive it, the pump rotor and the fan rotor being separated from one another in fluid-tight fashion and drivingly connected to one another via a magnetic coupling. A corresponding method for heat dissipation from a component that is to be cooled, uses a fan having a fan rotor and a drive motor, a pump having a pump rotor, a coolant that is pumpable by means of the pump, to perform the steps of A) imparting a rotational motion to the fan rotor by means of the drive motor; B) imparting a rotational motion to the pump rotor via the magnetic coupling; and C) causing the coolant to flow by the rotational motion of the pump.

Ceiling fan motors

An inside-out ceiling fan motor has a stator mounted to a downrod with an annular array of stator coils positioned about a rotor axis of rotation. A rotor is rotatably mounted about the stator. The rotor has a plurality of vanes spaced along the rotor periphery and canted at an angle of attack to a plane of rotor vanes rotation oriented normally to the rotor axis of rotation to scoop ambient air into the rotor during fan operation through the stator coils to cool them.

Axial flow fan unit

An axial flow fan unit includes a first and a second axial flow fan. The first axial flow fan includes a first motor, a plurality of first lead lines connected to the first motor, a first impeller rotatable about a center axis by the first motor, and a first housing arranged to enclose the first motor and the first impeller, wherein the first housing has a first recess portion extending from an inside to an outside of the first housing. Likewise, the second axial flow fan includes a second motor, a plurality of second lead lines, a second impeller, and the second housing, wherein the second housing has a second recess portion extending from an inside to an outside of the second housing. The first and the second lead lines are led out from the first and the second housings through the first and the second recesses, respectively. Further, the first recess portion is deviated relative to or partially overlapped with the second recess portion along a circumferential direction.

BLOWER DEVICE

A blower device includes: a fan; a motor rotating the fan; a cover covering a stator and a coil of the motor; a terminal electrically connected to the coil and protruding from the cover; a printed circuit board electrically connected to the terminal; a housing including a receiving hole receiving the terminal and supporting the stator; and an elastic body sandwiched between the cover and the housing and formed into an annular shape, wherein the elastic body includes a first seal portion surrounding the terminal within the receiving hole, the cover includes a protruding portion, a protruding height of the protruding portion from the cover is lower than that of the terminal from the cover, and the protruding portion supports the first seal portion.

Blower

A drive motor 42 is supported and fixed onto a motor support plate 44 composing a support member through vibration proof rubber 45 which damps vibration, the frequency of which is not less than 1 kHz, to be not more than 50%. Due to the foregoing, it becomes difficult for the vibration generated from the drive motor 42 itself, the frequency of which is not less than 1 kHz, to be transmitted to the support member so that the generation of resonance noise can be prevented. Further, a protrusion 44 a is provided on a surface of the motor support plate 44 and the resonance frequency of the support member is adjusted to be not less than 1 kHz. Due to the foregoing, even when the vibration of the drive motor 42 , the frequency of which is lower than 1 kHz, is transmitted to the support member, resonance noise is not generated.

FAN DEVICE ATTACHMENT STRUCTURE

A fan device mounting structure is provided, which is capable of sufficiently suppressing transmission of vibrations in X, Y, and Z directions generated from a fan device, that is, all translational-direction vibrations and all axial-rotation-direction vibrations, to a chassis in which the fan device is mounted. The fan device mounting structure includes: a fan device 1; a chassis 4 in which the fan device 1 is mounted; and at least a pair of flat springs 2, each of which has its one end attached to the fan device 1 and extending outwards from the fan device 1 and bending and has the other end attached to outside a fan device located area, wherein both opposite faces of the fan device 1 facing each other are supported by the respective flat springs 2 and attached to the chassis 4 at positions separate from each other.

ELECTRONIC DEVICE, AND CONTROL DEVICE AND METHOD FOR CONTROLLING FAN EMPLOYED IN THE ELECTRONIC DEVICE

An electronic device includes a fan and a control device for controlling the fan. The control device includes a control unit, a first signal generation unit and a second signal generation unit each connected to the fan. The control unit has a first signal output terminal and a second signal output terminal. In use, the control unit first enables the first signal output terminal to generate a speed adjusting signal to control the fan. The control unit further detects whether a speed measurement signal is received from the fan, and enables the second signal output terminal to generate the speed adjusting signal to control the fan, if no speed measurement signal is received.

ELECTRONIC DEVICE AND METHOD OF STARTING THE SAME

A method of starting an electronic device includes: receiving a first wireless signal carrying a first identification data by a wireless receiver before the electronic device enters a normal operating state; comparing the first identification data with a valid data; obtaining an account name and a password according to the first identification data if the first identification data matches the valid data and logging in to an operating system with the account name and the password so as to allow the electronic device to enter the normal operating state; and not logging in to the operating system if the first identification data does not match the valid data.

FAN

Fan includes wires electrically connected to the circuit board outwardly extends from a base toward a housing along a rib connecting the base supporting a motor and the housing. The housing includes a wire-receiving section defined by a through hole extending in the housing, and a slit connecting the through hole and an outside of the housing along a direction in which the through hole extends. The wires are inserted into the wire-receiving section via the slit, and then, led outside of the housing through the wire-receiving section. A wire-holding member is then inserted into the wire-receiving section to close the slit to prevent the wires from coming out of the wire-receiving section and to restrict the movement of the wires.

FAN FIXING DEVICE

A device for assembling a heat dissipation fan in a computer includes a cage, a handle, and a movable portion. The handle is rotateably fixed on the cage, the handle has a pushing pole and holes are defined at each distal end. The movable portion is movably and elastically connected to the cage. The movable portion includes a plate with a first limit pillar and a second limit pillar spaced from the first limit pillar; and an elastic element abutting the first limit pillar.

Fan, motor and magnetic conducting housing thereof

A magnetic conducting housing of a motor includes a body and at least one first positioning structure. The magnetic conducting housing has a magnetic element disposed around an inner wall thereof. The body has a top surface and a side wall connected with a circumference of the top surface to form an opening. The first positioning structure extends from the side wall of the body and is close to the opening for holding the magnetic element. Also, a motor and a fan with above-mentioned magnetic conducting housing are disclosed.

Fan mounting means and method of making the same

A fan arrangement comprises a fan ( 10 ) having a fan housing ( 30 ) within which is arranged a blower wheel ( 18 ) which, in operation, moves air from an intake side of the fan ( 10 ) to a delivery side. Arranged radially outside the fan housing ( 30 ) is a surrounding mounting frame ( 34 ) that serves to support the fan housing ( 30 ). A membrane ( 32 ), made of an elastic material, elastically connects the fan housing ( 30 ) and mounting frame ( 34 ) to one another and is formed with through holes or apertures ( 33 ) that, in the event of a closure of the output or delivery side of the fan arrangement ( 40 ), enable a return flow, from the delivery side to the intake side of the fan arrangement ( 40 ), of air moved by the blower wheel ( 18 ).

COOLING APPARATUS FOR AN ELECTRONIC DEVICE TO BE COOLED

The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.

Fan assembly

Disclosed herein is a fan assembly including an active fan, a supporting base and a passive element. The active fan includes a first impeller and a motor. The passive element is driven to rotate by an airflow from the active fan. The passive element includes a impeller and at least one load. The load is connected to the impeller.

ВЕНТИЛЯТОР

Изобретение относится к вентилятору. Состоит из корпуса, крыльчатки, приводного двигателя, а также защитной решетки. Корпус изготовлен из синтетического материала цельным и состоит главным образом из сужающегося в направлении потока подающего сопла, имеющей форму цилиндра направляющей потока, подобного диффузору расширения, спрямляющих лопастей, на чьем конце со стороны ступицы установлен кронштейн опоры двигателя, устройства, которое служит для крепления защитной решетки, а также приспособления, которое служит для крепления корпуса на предусмотренном для этого приборе или здании. Крыльчатка установлена с возможностью вращения вокруг центральной оси и состоит из центральной ступицы и установленных на ней лопастей, которые в области своих радиальных наружных кромок снабжены струйными элементами (винглетами). Изобретение направлено на снижение шума и увеличение КПД. 13 з.п. ф-лы, 6 ил.

ПРИВЕДЕНИЕ В ДЕЙСТВИЕ ЛОПАСТЕЙ ДВИГАТЕЛЯ С ОТКРЫТЫМ ВЕНТИЛЯТОРОМ

Изобретение относится к области авиации, в частности к устройствам регулирования шага винта. Тяговый двигатель имеет ротор, несущий, по меньшей мере, одну поворотную лопасть и устройство привода, соединенное с лопастью для того, чтобы поворачивать лопасть. Устройство (1) привода содержит, по меньшей мере, один источник (2, 2') электричества, электрический привод (3) для поворота упомянутой лопасти и цепь (4, 4') электропитания, соединяющую источник (2, 2') электричества с упомянутым приводом (3). Устройство привода дополнительно содержит инерционное устройство, соединенное с упомянутой цепью (4, 4') электропитания, причем упомянутое инерционное устройство (5) является подходящим для преобразования электрической энергии, поступающей от упомянутой цепи (4, 4') электропитания, в механическую энергию для сохранения упомянутой механической энергии и для преобразования упомянутой механической энергии в электрическую энергию для упомянутой цепи (4, 4') электропитания. Повышается эффективность ...

ХОЛОДИЛЬНЫЙ АППАРАТ С ВЕНТИЛЯТОРНЫМ АГРЕГАТОМ

... 1. Холодильный аппарат с корпусом (19), окружающим внутреннюю камеру (16), и с вентиляционным агрегатом, смонтированным во внутренней камере (16), с вентилятором (2), имеющим приводной двигатель и рабочее колесо вентилятора, отличающийся тем, что вентиляторный агрегат имеет каркас (1) с приемным отсеком, служащим для по меньшей мере значительного принятия приводного двигателя и рабочего колеса вентилятора, и крепежные элементы для удерживания оболочки (12). ! 2. Холодильный аппарат по п.1, отличающийся тем, что приемный отсек выполнен по меньшей мере значительно в виде трубки. ! 3. Холодильный аппарат по п.2, отличающийся тем, что трубка имеет прямоугольное поперечное сечение. ! 4. Холодильный аппарат по п.1, отличающийся тем, что за приемным отсеком на каркасе выполнены средства для направления воздуха. ! 5. Холодильный аппарат по п.4, отличающийся тем, что посредством средств для направления воздуха вентилятор (2) расположен с зазором (20) от крышки (17) внутренней камеры (16) и от задней ...

Display and cooling fan combination, has impeller shifted into rotating movement, and including spindle, and display fastened at impeller and including coils, where one coil produces induced current which is supplied to display

The combination has a cooling fan, an impeller (20), and housing with bearings provided within a solenoid. A switching plate filters and stabilizes current from a power supply and supplies to the solenoid. The impeller has a spindle (21), which is guided by the bearings and has a magnet (23) facing the solenoid. The magnet and the impeller are shifted into a rotating movement. A display (22) is fastened at the impeller and has coils (224, 225), where the current of the plate flows to the coil (224). The coil (225) produces an induced current, which is supplied to the display.

Wärmeableitsystem mit funktional unterstützendem Gebläseschutz

Kühlverbundsystem und der darin verwendete Gebläseschutz. Dieser bewirkt eine Aufladung der Kühlgebläse des Verbundsystems und erhöht die Wärmeabführung bzw. vermindert den vom umlaufenden Gebläse erzeugten Lärm. Der Gebläseschutz hat einen Rahmen und einen Satz Schutzblätter, die in einem Rahmen angeordnet und mit dessen Innenseiten verbunden sind. Der Gebläseschutz kann stromaufwärts oder stromabwärts der Rotorblätter des Kühlgebläses angeordnet sein. Die Kühlgebläse können in Reihe oder parallel geschalten werden, wobei der Gebläseschutz jeweils den Luftstrom aus den Kühlgebläsen auflädt.

Anordnung und Verfahren zur Wärmeabfuhr von einem zu kühlenden Bauteil

Anordnung (10) zum Kühlen eines Bauteils, insbesondere eines elektronischen Bauteils, welche aufweist: eine Pumpe (24) zum Pumpen eines Kühlmittels (52), welche Pumpe (24) einen Pumpenrotor (84) aufweist, einen Lüfter (30), welcher einen Lüfterrotor (78) aufweist, dem zu seinem Antrieb ein Elektromotor (76) zugeordnet ist, wobei der Lüfter (30) einen Fluidkanal (100) zur Durchleitung eines Kühlmittels (52) aufweist, und wobei der Pumpenrotor (84) und der Lüfterrotor (78) fluiddicht voneinander getrennt und über eine Magnetkupplung (80, 84) antriebsmäßig miteinander verbunden sind.

Kältegerät mit Lüfteraggregat

Kältegerät mit einem einen Innenraum (16) umschließenden Gehäuse (19) und einem in dem Innenraum (16) montierten Lüfteraggregat mit einem Ventilator (2), wobei das Lüfteraggregat einen Träger (1) mit einem zur zumindest weitgehenden Aufnahme des Antriebsmotors und des Lüfterrads dienenden Aufnahmeraum und Halteelemente zur Haltung einer Blende (12) aufweist.

Gebläse

Gebläse, das einen Lagerblock, ein Statuummodul, das fest an dem Lagerblock angebracht ist, und eine Gebläseflügelanordnung aufweist, die eine Achse aufweist, die mit dem Lagerblock verbunden ist, um Rotation der Gebläseflügelanordnung relativ zum Statuummodul und zum Lagerblock bei Verbindung des Statormmoduls mit einer elektrischen Stromquelle zu ermöglichen, dadurch gekennzeichnet, dass der Lagerblock (1) eine abgestufte Nabe (11) aufweist, die sich nach oben von der Oberseite erstreckt, welche abgestufte Nabe ein Achsenloch (12), das sich zur Oberseite desselben erstreckt, und einen inneren ringförmigen Flansch (121) aufweist, der innerhalb des Achsenlochs (12) vorgesehen ist und von der Oberseite der abgestuften Nabe (11) in einem vorbestimmten Abstand angeordnet ist; und dass die Achse (34) der Gebläseflügelanordnung (3) in das Achsenloch (12) der abgestuften Nabe (11) eingesetzt ist und mit der Mittelachse des Achsenlochs (12) ausgerichtet ist und einen Hals (341) aufweist, der mit ...

Cooling fan nave seat with air guide effect is arranged in air channel between two opposing sides of frame and has body and shoulder

The cooling fan nave seat with air guide effect is arranged in an air channel (113) between opposing sides (111,112) of the frame (11) and has a body (131) and a shoulder (132). The shoulder extends to the side (111) and evolves into a narrowing concave area (133) around the middle axis, which in the center forms a peak (134). The blade wheel is rotatably located on the body of the nave seat (13). The shoulder is flow line-shaped. The nave seat is connected by a number of ribs with the inner wall of the frame and is held in the air channel of the frame. On the inner wall of the frame a number of air guides are provided, which have a connecting end and a free end. The connecting ends of the air guides are connected with the inner wall of the frame and the free ends of the air guides are directed to the nave seat. Between the free ends and the nave seat a first free space is formed.

Gerätelüfter

Gerätelüfter, welcher aufweist: Ein Gehäuse (21; 120), in welchem ein Luftführungskanal (22; 136) und in diesem ein Lüfterrad (30) vorgesehen sind, welchem Lüfterrad ein elektronisch kommutierter Antriebsmotor (38) zugeordnet ist, welches Gehäuse (21; 120) mit flanschartigen Abschnitten (46, 50) versehen ist, die zusammen mit der Außenseite des Luftführungskanals (136) Hohlräume (60, 64; 138) definieren, die jeweils mit mindestens einer Befestigungsöffnung (52) versehen sind; eine elektronische Anordnung (74; 146), welche Bauelemente für die Kommutierung des Antriebsmotors (38) aufweist und welche in einem solchen Hohlraum (64; 138) angeordnet ist; ein dachartiges mechanisches Schutzelement (80; 154), welches die elektronische Anordnung (74; 146) mindestens teilweise überdeckt und lösbar mit dem Gehäuse (21; 120) verbunden ist; welches dachartige Schutzelement (80; 154) mit zwei durch einen Dachfirst verbundenen Dachschrägen versehen ist, an denen jeweils ein Giebel vorgesehen ist, in welchem ...

Elektromotor mit Kühlventilatorwirkung

Doppelseitig saugender Radialventilator.

Gebläseventilator mit einer Zweifach-Einlassanordnung

Kühlventilator

Kühlventilator, umfassend eine Radnabe (11), die einen ersten Teil (111) und einen zweiten Teil (112) aufweist, die miteinander verbunden sind, wobei an der Außenseite des zweiten Teils (112) eine Vielzahl von Schaufeln (113) vorgesehen sind, wobei an der Innenseite des zweiten Teils (112) ein Magnet (114) vorgesehen ist, eine Radachse (12), die ein erstes Ende (121) und ein zweites Finde (122) aufweist, wobei das erste Ende (121) mit dem ersten Teil (111) der Radnabe (11) verbunden ist, einen Nabensitz (13), der in der Mitte eine Achsbüchse (131) aufweist, in der mindestens ein Lager (15) angeordnet ist, wobei das zweite Ende (122) der Radachse (12) durch das Lager (15) geführt ist, wobei der Nabensitz (13) für den zweiten Teil (112) einen erhöhten Rand (132) bildet, der auf der Stirnseiter um die Achsbüchse (131) gelegt ist.

Crossflow blower apparatus and system

Blower-type fan with dual inlet arangements

Fan motor structure

A fan motor structure including a shaft 100; a bearing member 200 coupled to the shaft; a stator 300 coupled to the shaft and disposed at one side of the bearing member; an impeller 400 having a coupling hole and a space part formed therein so as to be in communication with each other, the coupling hole having the bearing member coupled thereto and the space part having the stator received therein; a yoke 500 formed on an inner peripheral surface of the space part; a magnet 600 formed on an inner peripheral surface of the yoke; a diffuser to which an end portion of the shaft is fixed; and a cover coupled to the diffuser 700 and covering the impeller. Preferably rotation of the shaft relative to the diffuser is prevented and the bearing includes inner and outer races and a seal.

Fan rotor

Integrally formed casing for a heat-dissipating fan

Blowing device

Fan device having a noise reducing mechanism

CEILING FAN

... 1508076 Axial-flow fans SANYO ELECTRIC CO Ltd 8 April 1976 [17 April 1975 8 Aug 1975 22 Aug 1975 29 Aug 1975] 14320/76 Heading F1C [Also in Division H1] In a ceiling fan comprising a cover 8, Fig.2, provided with a motor rotor 6 and fan blades 12, a motor stator 5 fixed to a cylindrical vertical fixed shaft 15 which enters through the centre of the stator, a protecting member 25 mounted on the lower end of the shaft has a portion which extends below the stator winding 4. During assembly, portions 26 of the member 25 serve as legs to keep the stator 5 away from the bench and thereby protect the stator winding 4 from damage. After a lower cover 10 has been fixed to the fan, the leg portions 26 serve to limit the deflection suffered by the lower cover when the fan is stood on the floor, whereby the lower cover can spring back to its original shape when the fan is lifted from the floor. A terminal block 31 and a phase-splitting capacitor 29 for the motor are carried by a member 32 which connects ...

EXHAUST ARRANGEMENT

ABSORBED EXHAUST

Hybrid ventilator

CEILING FAN MOTORS

An inside-out ceiling fan motor has a stator mounted to a downrod with an annular array of stator coils positioned about a rotor axis of rotation. A rotor is rotatably mounted about the stator. The rotor has a plurality of vanes spaced along the rotor periphery and canted at an angle of attack to a plane of rotor vanes rotation oriented normally to the rotor axis of rotation to scoop ambient air into the rotor during fan operation through the stator coils to cool them.

FAN FOR NARROW ENVIRONMENTS

FAN SYSTEM

A fan system in combination with a DC brushless motor. The DC brushless motor includes: a shaft, a base, a stator assembly, a rotor assembly, a control box including a second cavity, and a circuit board. The fan system includes: a blower housing, a wind wheel, a first mounting bracket, and a second mounting bracket. The first mounting bracket is arranged at a first air inlet. The outer side of the first mounting bracket is connected to the upper end surface. The inner side of the first mounting bracket is provided with a first bearing, and the other end of the shaft is disposed on the first bearing. The second mounting bracket is arranged at a second air inlet. The outer side of the second mounting bracket is connected to the lower end surface.

Axial fan and slide mold

An axial fan includes an impeller and a housing including a side wall surrounding an outer circumference of the impeller. The side wall preferably includes at least one flat surface portion defined in an outer circumferential surface thereof, and a slit group including slits arranged to be spaced apart in a circumferential direction of an inner circumferential surface and extending in the same direction perpendicular or substantially perpendicular to the flat surface portion from the inner circumferential surface to the outer circumferential surface thereof. Within the slit group, a total number of slits positioned forward, with respect to a rotation direction of the impeller, of a point of contact of the inner circumferential surface with a tangent to the inner circumferential surface which is perpendicular or substantially perpendicular to a through direction of each slit is greater than a total number of slits positioned rearward of the contact point.

Magnetic fan device

A magnetic fan device includes a stator, at least three bearings fixed on the stator, a rotor fixedly connected to the stator, a motor, and at least three magnetic posts. The at least three bearings are permanent magnets. The rotor includes a shaft and a plurality of impellers rotatably connected to the shaft. The at least three magnetic posts with an opening at its lateral surface are configured for respectively receiving the at least three bearings by the opening. A first magnet is adhered to ends of the at least three magnetic posts, and a second magnet is adhered to opposite ends of the at least three magnetic posts. The magnetic pole of the first magnet adjacent to ends of the at least three bearings is opposite to the magnetic pole of the second magnet adjacent opposite ends of the at least three bearings.

Fan module

A fan module includes two brackets, a holder, and a fan. Each of the brackets has a first assembling portion. The holder has a U-shape body and an opening, and two of the second assembling portions are respectively disposed at two sides of the U-shape body. The fan is placed into the U-shape body through the opening. The holder is disposed between the brackets, and the first assembling portions of the brackets are assembled to the second assembling portions of the U-shape body. Screws are not required for assembling the fan module of the invention, and therefore material costs of the fan module can be reduced.

Lead wire engaging structure and electric apparatus

A lead wire engaging structure includes a first engaging portion and a second engaging portion. One end of the first engaging portion and one end of the second engaging portion are integrally provided at a first mounting portion integrally provided at a second casing wall portion. The first engaging portion forms a first gap between the first engaging portion and the second casing wall portion, and engages four lead wires in cooperation with the second casing wall portion. The first gap allows the four lead wires to pass therethrough. The second engaging portion forms a second gap between the second engaging portion and the first engaging portion. The second gap allows the four lead wires to pass therethrough. The other end portion of the first engaging portion and the other end portion of the second engaging portion are coupled to each other by a coupling portion.

Case structure and fan frame fixing module

A case structure includes a first housing and a fan frame fixing module. The fan frame fixing module includes a fan frame, a positioning part and an auxiliary part. The positioning part is disposed on the first housing. The auxiliary part is disposed on the first housing. The fan frame urges against the first housing and the positioning part, and the auxiliary part urges against the fan frame so that the fan frame is fixed on the first housing.

Blower fan

A blower fan includes a housing arranged to accommodate an impeller, wherein an upper surface portion of the housing includes a motor fixing portion, a peripheral portion, and a plurality of ribs interconnecting the motor fixing portion and the peripheral portion, the upper surface portion including a plurality of air intake ports defined between the motor fixing portion, the peripheral portion and the plurality of ribs being arranged to oppose the impeller; and the peripheral portion includes a peripheral low portion arranged to surround or substantially surround outer peripheries of the air intake ports and positioned lower than upper surfaces of the plurality of ribs and a peripheral high portion provided with rib extension portions continuously extending from the plurality of ribs and positioned higher than an upper surface of the peripheral low portion.

Centrifugal fan

A centrifugal fan is provided. The centrifugal fan is configured such that an impeller having a plurality of blades along a circumferential direction and disposed between a disk-shaped main plate and an annular shroud is accommodated in a casing, and that an air suctioned from a suction opening is discharged outward in a radial direction of the impeller. One ends of the blades are supported by the main plate, and the other ends of the blades are supported by the annular shroud. The annular shroud includes a curved surface formed from an outer circumferential edge toward a center thereof, and a cylindrical part connected to the curved surface at a center side. An upper end of the cylindrical part of the annular shroud passes through an opening of the casing and protrudes from the casing, and the upper end of the cylindrical part has a bell mouth shape.

Fan device

A fan device includes an impeller, a motor, a fan frame, a circuit board and a covering member. The motor is used for driving rotation of the impeller. The fan frame includes an axial-flow channel for accommodating the impeller and the motor and includes a receptacle. The receptacle is defined by two airflow inlet/outlet plates, one channel wall and two lateral plates. The circuit board is accommodated within the receptacle. The covering member is used for sheltering the receptacle.

Method and apparatus to attenuate vibrations from an air mover assembly

A reduced-vibration air mover assembly comprises a first blade housing to support a first motor housing and a first motor through a first set of struts, the first motor rotatably coupled to a first blade, and a second blade housing to support a second motor housing and a second motor through a second set of struts, the second motor rotatably coupled to a second blade, and a layer of damping material having a first surface adhered to at least one of the first motor housing, the first set of struts and the first blade housing, and a second surface adhered to at least one of the second motor housing, the second set of struts and the second blade housing. A method of reducing vibration transfer to a computer chassis comprises adhesively securing a layer of damping material intermediate a first air mover and a second air mover.

Axial flow heat exchanger devices and methods for heat transfer using axial flow devices

Systems and methods described herein are directed to rotary heat exchangers configured to transfer heat to a heat transfer medium flowing in substantially axial direction within the heat exchangers. Exemplary heat exchangers include a heat conducting structure which is configured to be in thermal contact with a thermal load or a thermal sink, and a heat transfer structure rotatably coupled to the heat conducting structure to form a gap region between the heat conducting structure and the heat transfer structure, the heat transfer structure being configured to rotate during operation of the device. In example devices heat may be transferred across the gap region from a heated axial flow of the heat transfer medium to a cool stationary heat conducting structure, or from a heated stationary conducting structure to a cool axial flow of the heat transfer medium.

Blower fan

A blower fan includes a motor unit including a rotary unit; a plurality of blades fixed to an outer surface of the rotary unit and arranged to be rotated about a center axis by the motor unit; and a lower plate portion defined by a magnetic body and positioned below the motor unit and the blades. The lower plate portion includes a motor fixing portion, a curved portion, a peripheral portion, and a plurality of ribs arranged to interconnect the motor fixing portion and the peripheral portion either directly or through the curved portion, the curved portion including a standing portion extending upward from the outer edge portion of the motor fixing portion and an upper surface portion extending radially outward from an upper end of the standing portion, a plurality of openings positioned below the blades being defined by the curved portion, the peripheral portion, and the ribs.

Impeller and centrifugal fan

Herein disclosed are an impeller and a centrifugal fan having the same. The impeller includes a cup-shaped metallic hub having a cylindrical portion. The hub includes a flange extending outwardly from an edge of the cup, a plurality of resin vanes disposed above an outer portion of the flange and coaxially with the cylindrical portion, and an annular part made of resin supporting the plurality of resin vanes thereon and holding the outer portion of the flange embedded therein.

Fan mounting apparatus for heat dissipation

A fan mounting apparatus for a computer system comprises a chassis comprising a bottom plate and a rear plate substantially perpendicular to the bottom plate, a plurality of ventilation holes defined in the rear plate; at least two engaging members and a blocking portion extending from the rear plate, the at least two engaging members and the blocking portion being around the plurality of ventilation holes; a fan comprising a sidewall; wherein the at least two engaging members are mirror symmetry around the plurality of ventilation holes and engaged with the sidewall to prevent the fan from moving in a first direction, a second direction opposite to the first direction, and a third direction substantially perpendicular to the rear plate; and the blocking portion abuts the sidewall to prevent the fan from moving in a fourth direction substantially parallel to the rear plate.

Fan assembly

A fan assembly includes a first fan and a second fan stacked together. Each of the first fan and the second fan includes a frame and a supporting base received in the frame. Several extending portions extend from a bottom of the frame of the first fan. A buckling block is formed on an inner side face of each of the extending portions. Several receiving portions are formed at a top of the frame of the second fan corresponding to the extending portions, respectively. A positioning groove is defined in each of the receiving portions. The buckling blocks are engagingly received in the positioning grooves.

Fan

A fan includes a housing and a motor. The housing has a compartment, at least one lateral air inlet and at least one lateral air outlet. The lateral air inlet and lateral air outlet communicate with the compartment. The motor has a stator and an impeller. The impeller is coupled with the stator and includes a hub and a plurality of blades coupled with a top face of the hub. Each blade has first and second ends. The first ends of the blades face outwards, and the second ends of the blades define an air-guiding room encompassed by a virtual geometric pattern formed by a virtual line linking the second ends of the blades. The virtual geometric pattern has a maximal diameter. A gap is formed between the second ends of two adjacent blades. The gap is smaller than the maximal diameter of the virtual geometric pattern.

Adjustable speed fan

A fan includes blades, a motor, a bracket fixing the motor, a fan connector, a resistor unit, and a switch unit. The fan connector, the resistor unit, and the switch unit are configured to control power to the motor to adjustably control rotation of the blades. The motor controls the blades to rotate at different speeds through switching the switch unit to adjust the current output to the power terminal of the motor.

Fan brake

A fan brake for a fan system. The fan system may include a fan assembly configured for seating into a cassette housing. The fan assembly may include a fan having a plurality of blades connected with a fan hub. The fan brake may be connected to the fan assembly, wherein the fan brake engages the fan hub when the fan housing is not fully seated within the cassette housing, and the fan brake disengages the fan hub when the fan assembly is fully seated into the cassette housing.

Blade structure for centrifugal fan

A blade structure for centrifugal fan includes a hub, a first blade unit, and a second blade unit. The hub includes at least one connection section, to a radially outer end of which an annular body is connected. The annular body has a first side and an opposite second side; and the first and the second blade unit are arranged on and spaced along the first and the second side of the annular body, respectively. By providing the first and the second blade unit around the hub of a centrifugal fan, the air flows and pressure produced by the centrifugal fan can be largely increased at effectively reduced noise.

Air-extracting type heat dissipating apparatus

An air-extracting type heat dissipating apparatus includes a frame, a fan body, a plurality of air-inhaling holes and a plurality of air-exhaling holes. The side portion of the frame has an accommodating space. The fan body is disposed in the frame and has a first side and a second side. The air-inhaling holes are disposed on the side portion of the frame in corresponding to the accommodating space. The air-exhaling holes are disposed on the frame and located on the second side. An air is inhaled into the accommodating space through the air-inhaling holes, and exhaled to the first side through the air-exhaling holes, and then it is exhaled to the second side by the fan body.

Fan

A fan includes a stationary portion, a rotating portion, and an impeller arranged to rotate about a central axis together with the rotating portion to produce an axial air current. The rotating portion includes a rotor holder. The impeller includes a cup portion arranged to cover the rotor holder and a plurality of blades arranged on an outer circumference of the cup portion. The cup portion includes a cup cover portion arranged to extend radially outward from the central axis; a cup cylindrical portion being substantially cylindrical in shape, and arranged to extend in an axial direction from an outer edge portion of the cup cover portion; and a cup through hole arranged to extend through the cup portion at a position overlapping with a portion or boundary between the cup cover portion and the cup cylindrical portion.

Fan with fluid diversion mechanism

A fan with a fluid diversion mechanism includes a fan frame structure and a vane wheel, and the fan frame structure has a containing space, an air inlet and an air outlet, and the fan frame structure includes a coaming plate having a plurality of diversion components, and an opening formed at any one of the diversion components and arranged in a direction towards the air inlet, and the vane wheel is installed in the containing space of the fan frame structure, so that when the vane wheel is operated, air current produced by vanes of the fan guides the air current entered from the diversion component to an external side of a retaining platform which is a leeward side, and the air current has an effective coverage for blowing a desired heat source and improves the overall airflow and air pressure of the fan.

Axial fan and control method thereof

An axial fan includes a fan frame, an impeller and a motor. The fan frame has a frame body, a base and plural connecting members. The base is disposed at the center of a side of the frame body. The connecting members connect the frame body to the base. The impeller is accommodated in the frame body and disposed on the base. The impeller has a rotating shaft, a hub and plural blades disposed around the hub. The motor is disposed on the base and connects with the rotating shaft to drive the impeller to rotate. When the impeller rotates forwardly, the airflow is induced to flow through the connecting members, blades, and one side of the frame body away from the base. When the impeller rotates reversely, the airflow is induced to flow through the side of the frame body, blades and connecting members.

Motor and fan

A base plate of a motor includes an inner bottom plate portion and an elevated portion. A land portion is arranged on an upper surface of a portion of a circuit board which overlaps with the inner bottom plate portion in a plan view, or on a portion of the circuit board which overlaps with the elevated portion in the plan view. A conducting wire extending from a coil is electrically connected to the land portion. This structure enables the conducting wire to be connected to the land portion on the circuit board without the conducting wire being drawn outward beyond an outer circumferential end portion of the base plate. The axial position of the conducting wire connected to the land portion and the axial position of the base plate at least partially overlap with each other.

Portable electronic device with tiltedly installed centrifugal fan

A portable electronic device includes a main body and a heat dissipation module with a tiltedly installed centrifugal fan inside thereof. The main body includes an upper housing wall and a lower housing wall. The heat dissipation module includes a centrifugal fan, a heat dissipation fin array and a heat pipe. The centrifugal fan includes an impeller, a radial air outlet, an upper axial air inlet and a lower axial air inlet, wherein the centrifugal fan has a first side that is in contact with the upper housing wall and an opposite second side that is in contact with the lower housing wall. The heat dissipation fin array is located at the radial air outlet of the centrifugal fan. The heat pipe has a first end connected with the heat dissipation fin array and a second opposite end connected with a heat source.

Fan and fan frame thereof

A fan includes a fan frame and a fan wheel. The fan frame includes a frame body and a first waved structure. The frame body has a wind enter side and a wind exhaust side, wherein the wind enter side is opposite to the wind exhaust side. The first waved structure is formed on the wind enter side of the frame body. The first waved structure has a plurality of first peaks and a plurality of first valleys, wherein the first peaks and the first valleys are arranged separately. The fan wheel is rotatably disposed in the fan frame.

SHROUDED FAN IMPELLER WITH REDUCED COVER OVERLAP

The described embodiments relate to improving efficiency of a low-profile cooling fan. In one embodiment, an impeller of the cooling fan includes a shroud which covers a central portion of the impeller, thereby allowing a central inlet portion of the blades to have an increased fan blade height when compared to a cooling fan constrained by minimum part tolerances between the fan blades and a portion of the fan housing. In some embodiments, the impeller includes splitter blades that can improve performance of the low-profile cooling fan. 1. A fan comprising:a cover having a first cover plate and a second cover plate vertically separated to define an interior fan region between the first cover plate and the second cover plate; and a central hub,', 'a plurality of blades extending from an interior edge of each blade coupled with the central hub to an exterior edge of each blade, wherein each blade of the plurality of blades is characterized by a first edge proximate the first cover plate and a second edge opposite the first edge, and wherein the exterior edge of each blade of the plurality of blades at least partially extends within the interior fan region, and', 'a shroud coupled with the plurality of blades along the second edge of each blade of the plurality of blades., 'an impeller comprising2. The fan of claim 1 , wherein the shroud is characterized by an interior edge and an exterior edge extending towards an outer edge of the second cover plate claim 1 , wherein the exterior edge of the shroud is separated from the outer edge of the second cover plate by a gap length.3. The fan of claim 2 , wherein a ratio of the gap length to a diameter of the impeller measured to the exterior edges of the plurality of blades is less than 0.01.4. The fan of claim 2 , wherein the shroud defines a lip extending across the gap length and past an exterior edge of the second cover plate claim 2 , and wherein an outer diameter of the shroud is less than an outer diameter defined by ...

Fan module and electronic device

The disclosure provides a fan module and an electronic device. The fan module includes a hub and a plurality of blades. The blades are mounted around the hub, and each of the blades has a first end is connected to a periphery of the hub and a second end that is relatively away from the hub. A first axial direction distance in the axial direction is provided between a first point of the first end that is relative away from the top surface and the top surface. A second axial direction distance in the axial direction is provided between a second point of the first end that is near the top surface and the top surface. A ratio of the second axial direction distance to the first axial direction distance is 0.4 to 0.5.

TURBO-BLOWER HAVING COMPLEX COOLING STRUCTURE FOR FUEL CELL

The present invention relates to a turbo-blower having a complex cooling structure for a fuel cell, and more specifically, to a turbo-blower having a complex cooling structure for a fuel cell, the turbo-blower providing improved efficiency and durability of an impeller means by inhibiting a temperature rise through cooling of the impeller means that generates high-pressure air, by a cooling structure configured to simultaneously utilize both an air-cooling method and a water-cooling method. 11200{'b': '100', 'a blower casing means () that guides flow and discharge of suctioned air; and'}{'b': 200', '100', '100, 'an impeller means () that is positioned inside the blower casing means () and is coupled to the blower casing means () and generates inflow and flow of air,'}{'b': 100', '200, 'claim-text': [{'b': '110', 'an air suction duct () that allows air to be suctioned inside;'}, {'b': 120', '200', '200, 'an air flow guiding cover () that is formed to have a curved surface, is air-tightly coupled to the impeller means () at a neighboring position, and guides air suctioned inside to the impeller means ();'}, {'b': 130', '200, 'an air emitting duct () that causes air subjected to a pressure rise through the impeller means () to be discharged to a fuel cell stack;'}, {'b': 140', '100, 'a suctioned air securing portion () that causes an amount of air suctioned inside the blower casing means () to be secured;'}, {'b': 150', '200', '100', '200, 'an impeller means air-cooling portion () that cools the impeller means () by using flow of air suctioned inside the blower casing means () by the impeller means ();'}, {'b': 160', '200', '200', '161, 'an impeller means water-cooling unit () that is formed to neighbor the impeller means (), cools the impeller means () by using flow of cooling water supplied from outside, and has a cooling-water inflowing/circulating groove ();'}, {'b': 170', '110', '150', '120, 'a first air flow path () that is generated by the air suction duct (), ...

ILLUMINATION FAN

An illumination fan includes a first frame, a second frame, a fan blade, a light guide and a light source. The first frame includes an accommodation space. The second frame is assembled with the first frame, and an inner surface of the second frame is substantially flat. The fan blade is rotatably disposed in the accommodation space. The light source is disposed on either the first frame or the second frame. The light guide is disposed on the first frame and surrounds the fan blade. 1. An illumination fan , comprising:a first frame comprising an accommodation space;a second frame assembled with the first frame, and an inner surface of the second frame being substantially flat;a fan blade rotatably disposed in the accommodation space;a light source disposed on either the first frame or the second frame; anda light guide disposed on the first frame and surrounding the fan blade.2. The illumination fan according to claim 1 , wherein the second frame comprises a frame body and an assembling structure claim 1 , the frame body comprises the inner surface claim 1 , the assembling structure is located on the inner surface claim 1 , and the first frame is assembled with the second frame by the assembling structure.3. The illumination fan according to claim 2 , wherein the assembling structure is disposed nearby a periphery of the frame body claim 2 , and the inner surface of the frame body faces toward the fan blade.4. The illumination fan according to claim 2 , wherein the inner surface of the frame body extends from a center of the frame body to a periphery of the frame body.5. The illumination fan according to claim 2 , wherein the frame body comprises an annular portion and a rib portion connected to each other claim 2 , the assembling structure is disposed on the annular portion claim 2 , the fan blade is disposed on the rib portion claim 2 , and an inner surface of the annular portion and an inner surface of the rib portion jointly define the inner surface of the frame ...

Fan device

A fan device 1 includes a second housing 12 and a hub 27. The hub 27 includes a hub body part 272 and a hub outer peripheral wall part 271. The hub body part 272 is a surface extending in the radial direction orthogonal to the direction of the axis x, and the hub body part 272 covers the motor 20 from the upper side “a” in the direction of an axis c. The hub outer peripheral wall part 271 extends from the end portion of the hub body part 272 toward the lower side “b” from the upper side “a” in the direction of the axis x. Assuming that the outer diameter of the outer peripheral surface of the hub outer peripheral wall part 271 is “a1”, and the outer diameter of the outer peripheral surface of the base outer peripheral wall part 124 is “b1”, 1.05<b1/a1<1.13 is established.

Fan assembly and fan frame

A fan assembly and a fan frame thereof are disclosed. The fan assembly includes a fan frame and an impeller disposed in the fan frame. The fan frame has an air inlet end and an air outlet end, and includes a sidewall, a top portion and a bottom portion. The top portion is disposed close to the air inlet end and connected to one end of the sidewall. The bottom portion is disposed close to the air outlet end and connected to the other end of the sidewall. The bottom portion has at least one silencing structure.

IMPELLER, AIR-SENDING APPARATUS, AND CLEANING MACHINE

An impeller includes a main plate spreading radially with respect to the center axis, a plurality of blades provided on an upper surface of the main plate and arranged side by side in a circumferential direction, a shroud connected to tops of the plurality of blades and having an intake port that is an opening extending upward, and a mount portion provided on the upper surface of the main plate and positioned on an inner side with respect to a radially outer end of the main plate. The mount portion has a plurality of recesses each being depressed downward from an upper surface of the mount portion and extending in a direction away from the center axis. 1. An impeller that rotates on a center axis extending in a vertical direction , the impeller comprising:a main plate spreading radially with respect to the center axis;a plurality of blades provided on an upper surface of the main plate and arranged side by side in a circumferential direction;a shroud connected to tops of the plurality of blades and having an intake port that is an opening extending upward; anda mount portion provided on the upper surface of the main plate and positioned on an inner side with respect to a radially outer end of the main plate,wherein the mount portion has a plurality of recesses each being depressed downward from an upper surface of the mount portion and extending in a direction away from the center axis.2. The impeller according to claim 1 ,wherein a radially inner end of each of the recesses is positioned on a forward side in a direction of rotation of the impeller with respect to a radially outer end of the recess.3. The impeller according to claim 1 ,wherein a side surface of each of the recesses that is on the forward side in the direction of rotation includes a recess-widening part extending upward while inclining toward the forward side in the direction of rotation such that the recess is widened.4. The impeller according to claim 1 ,wherein a side surface of each of the ...

FAN MODULE

A fan module comprises a frame, a wire-stopping structure, an impeller and a circuit board. The frame includes a frame wall, a base, a plurality of static blades and a connector. A wire groove formed on an outside of the frame wall to accommodate a wire. The static blades are radially connected to the base and the frame wall. The connector is formed on the outside of the frame wall and extended from one end of the wire groove to the base along one of the static blades. The connector includes a plurality of pins. The wire-stopping board is fixed to the frame wall to cover the wire groove. The impeller is disposed in the frame. The circuit board is disposed in the frame and located on the base. The circuit board includes a plurality of pin holes, and the pin holes are electrically connected to the pins. 1. A fan module , comprising: 'a frame wall includes a wire groove formed on an outside of the frame wall to accommodate a wire;', 'a frame, includesa base;a plurality of static blades, radially connected to the base and the frame wall, and located between the base and the frame wall; anda connector, formed on the outside of the frame wall and extended from one end of the wire groove to the base along one of the static blades, the connector includes a plurality of pins;a wire-stopping board, fixed to the frame wall to cover the wire groove;an impeller, disposed in the frame; anda circuit board, disposed in the frame and located on the base, the circuit board includes a plurality of pin holes, the pin holes are electrically connected to the pins.2. The fan module of claim 1 , wherein a shape of the circuit board is corresponding to a shape of the base.3. The fan module of claim 2 , wherein the circuit board further includes a protruding portion claim 2 , the protruding portion is corresponding to the static blade which the connector is extended along claim 2 , and the pin holes are located at the protruding portion.4. The fan module of claim 1 , wherein the frame ...

BLOWER FAN

A stationary portion of a blower fan according to a preferred embodiment of the present invention includes a stator and a stator holding portion to which the stator is fixed. A rotating portion of the blower fan includes an annular rotor hub portion arranged around a central axis; a rotor magnet arranged along a circumferential surface of the rotor hub portion, and arranged radially inside a stator; and an impeller including a plurality of blades arranged along a circumferential direction of the rotor hub portion. An upper end of the stator is arranged at a level lower than that of an upper end of the rotor magnet. The impeller is arranged axially above the rotor magnet and is arranged to extend radially outward. The blades are arranged axially above the stator. 1. A blower fan comprising:a stationary portion;a bearing mechanism; anda rotating portion arranged to rotate about a central axis extending in a vertical direction, and supported through the bearing mechanism to be rotatable with respect to the stationary portion; wherein a stator; and', 'a stator holding portion to which the stator is fixed;, 'the stationary portion includes an annular rotor hub portion arranged around the central axis;', 'a rotor magnet arranged along a circumferential surface of the rotor hub portion, and arranged radially inside the stator; and', 'an impeller including a plurality of blades arranged along a circumferential direction of the rotor hub portion; and, 'the rotating portion includesan upper end of the stator is arranged at a level lower than that of an upper end of the rotor magnet, the impeller is arranged axially above the rotor magnet and is arranged to extend radially outward, and the blades are arranged axially above the stator.2. The blower fan according to claim 1 , whereinthe rotor hub portion and the impeller are defined by separate members; an outer circumferential surface arranged to hold the rotor magnet; and', 'a raised portion arranged to project radially ...

FAN

A blower fan includes a lower plate portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more, and a side wall portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more. An upper plate portion arranged to cover an upper side of the impeller includes an air inlet. The upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on the lateral side of the impeller. The blower fan further includes a heat source contact portion with which a heat source is to be in contact, the heat source contact portion being arranged in a surface of the blower fan which faces away from the impeller. The heat source contact portion and the tongue portion are arranged to at least partially overlap with each other in the plan view. 1. A blower fan comprising:an impeller including a plurality of blades arranged to rotate about a central axis extending in a vertical direction and arranged in a circumferential direction, and a blade support portion arranged to support the blades;a motor portion arranged to rotate the impeller; anda housing arranged to contain the impeller; wherein a lower plate portion arranged to cover a lower side of the impeller, arranged to support the motor portion, and made of a material having a thermal conductivity of 1.0 W/(m·K) or more; and', 'a side wall portion arranged to cover a lateral side of the impeller, connected with the lower plate portion, and made of a material having a thermal conductivity of 1.0 W/(m·K) or more;, 'the housing includesa channel joining a space above the impeller and a space between the impeller and the lower plate portion to each other in an axial direction is defined between adjacent ones of the blades of the impeller;an upper plate portion arranged to cover an upper side of the impeller includes an air inlet;the upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on ...

BLOWER

A blower is provided that may include a first suction inlet having a first suction opening formed therein; a second suction inlet having a second suction opening formed therein; at least one fan provided between the first suction inlet and the second suction inlet, to generate a flow of air; a discharge ring provided at an outer side of the at least one fan to discharge air to an outside of the blower; a filter provided at any one of the first suction inlet or the second suction inlet, to filter suctioned air; and a heater provided at the other of the first suction inlet or the second suction inlet, to heat suctioned air. 1. A blower , comprising:a first suction inlet having a first suction opening formed therein;a second suction inlet having a second suction opening formed therein;at least one fan provided between the first suction inlet and the second suction inlet to generate a flow of air;a discharge outlet provided at an outer side of the at least one fan to discharge air to an outside of the blower;a filter provided at any one of the first suction inlet or the second suction inlet, to filter suctioned air; anda heater provided at the other of the first suction inlet or the second suction inlet to heat suctioned air.2. The blower of claim 1 , wherein the filter is provided in the first suction opening claim 1 , and the heater is provided in the second suction opening.3. The blower of claim 2 , wherein the at least one fan includes:a first fan that generates a first air current which is suctioned through the first suction inlet; anda second fan provided at a second side of the first fan, wherein the second fan generates a second air current which is suctioned through the second suction inlet, andwherein the filter filters the first air current, and the heater heats the second air current.4. The blower of claim 3 , further including a first blower shell that accommodates the first fan therein and a second blower shell that accommodates the second fan therein ...

AXIAL FLOW FAN

An axial flow fan of the present invention includes: an impeller having a hub and vanes disposed at equal intervals on an outer peripheral portion of the hub; a rotor shaft located at the center of the impeller; a motor portion rotating the impeller around the rotor shaft as an axis; a casing surrounding an outer periphery of the impeller; a base portion supporting the motor portion; and a stationary blade located in a blowout opening side of air flow, the stationary blade connecting the base portion and the casing, wherein the stationary blade has on its surface a guide portion allowing air flow flowing along the surface to be rectified and guided from a direction of the blowout opening to an outside. 1. An axial flow fan , comprising:an impeller having a hub and vanes disposed at equal intervals on an outer peripheral portion of the hub;a rotor shaft located at the center of the impeller;a motor portion rotating the impeller around the rotor shaft as an axis;a casing surrounding an outer periphery of the impeller;a base portion supporting the motor portion; anda stationary blade located in a blowout opening side of air flow, the stationary blade connecting the base portion and the casing,wherein the stationary blade has on its surface a guide portion allowing air flow flowing along the surface to be rectified and guided from a direction of the blowout opening to an outside.2. The axial flow fan according to claim 1 , wherein the guide portion is provided on a surface directed to the blowout opening side of the stationary blade.3. The axial flow fan according to claim 1 , wherein the guide portion is integrally provided from a base portion side to a casing side of the stationary blade.4. The axial flow fan according to claim 1 , wherein the guide portion is claim 1 , in a cross sectional view claim 1 , an L-shaped groove having a longitudinal wall parallel to the rotor shaft.5. The axial flow fan according to claim 1 , wherein the guide portion is claim 1 , in a ...

Heat dissipation fan with detachable light emission unit

A heat dissipation fan with a detachable light emission unit includes a housing and a vane assembly in addition to the light emission unit. The housing has a bottom housing portion, a top housing portion, and a peripheral wall portion connected between the bottom and top housing portions. The bottom and top housing portions and the peripheral wall portion jointly surround a receiving space. Each of the bottom and top housing portions has a through hole in communication with the receiving space. The top side of the top housing portion, i.e., the side facing diametrically away from the bottom housing portion, has a lamp groove. The vane assembly is rotatably mounted in the receiving space and on the plane where the bottom housing portion lies. The light emission unit is detachably mounted in the lamp groove and, when damaged, can be detached and replaced to avoid waste of resources.

Cooling fan module

A cooling fan module includes a fan frame, a light emitting part installed in the fan frame, an LED controller installed in the fan frame and electrically connected to the light emitting part, a fan body, and an external connector. The fan body includes a supporting stand detachably connected to the fan frame, a blade set installed on the supporting stand and can rotate with respect to the supporting stand, and a fan connector fixed to the supporting stand and electrically connected to the blade set. The external connector is fixed to the fan frame. The external connector can be electrically plugged in the fan connector to send a first signal; the external connector is electrically connected to the LED controller to send a second signal. Therefore, the cooling fan module has the advantages of easy assembly and reduced incorrect connection.

Fan system management

In some embodiments, a rack system is configured to comprise a removable fan system. The fan system enables thermal management of the rack system. The removable fan system includes a replaceable fan tray that can be assembled in the rack system by engaging a connecting mechanism and connecting a connecting cable. The fan tray is engaged with the connecting mechanism to be securely attached to the rack system. The fan tray is connected to a bus bar to receive power or necessary data to be operated. The fan tray can be disassembled from the rack system while the bus remains active, and enables access to the server or the rack system. The replaceable fan tray enables easy replacement of the fan system and access to the rear side of the rack system.

CONTROLLER WITH FAN MOTORING AND CONTROL

An industrial automation controller includes a housing with a forced convection chamber. First and second fans are releasably connected to the housing and are adapted to induce airflow through the forced convection chamber. The first and second fans are each connected to the housing by respective first and second latch systems that each include a primary latch and a secondary latch. The secondary latch imposes a time delay during removal and replacement of a fan to facilitate hot swapping of the fan with a replacement fan. A make-last/break-first contact system is provided for each fan such that the fan is shutdown in a controlled manner prior to removal of the fan from the housing. The controller monitors internal temperature and fan speed. The controller initiates, logs, and reports fault conditions based upon the monitored temperature and/or fan speed. The controller is shut down if the monitored temperature exceeds a select temperature level. 1. An industrial automation controller comprising:a housing that includes a forced convection chamber;a processor;a first fan module comprising a first fan controlled by the processor and adapted to induce airflow through the forced convection chamber;wherein said processor monitors a fan speed of the first fan and initiates a minor fan speed fault if the speed of the first fan is below a select value.2. The industrial automation controller as set forth in claim 1 , wherein said processor monitors a temperature in the housing and performs at least one of: (i) a first remedial action comprising increasing said fan speed of said first fan to increase said airflow through said forced convection chamber; (ii) a second remedial action comprising initiating a major temperature fault and shutting down the industrial automation controller if the temperature in the housing exceeds a select maximum value.3. The industrial automation controller as set forth in claim 1 , wherein said processor monitors said temperature within said ...

BLOWER FAN AND ELECTRONIC DEVICE

A blower fan according to a preferred embodiment of the present invention is a centrifugal fan including a stationary portion, a bearing mechanism, and a rotating portion. The stationary portion includes a lower plate portion and a stator. The stator includes a plurality of teeth each of which has a radially inner end including an upward projecting portion arranged to extend axially upward.

Fan

A blower fan according to a preferred embodiment of the present invention is a centrifugal fan. At least a portion of each of a plurality of blades of an impeller portion is arranged above a stator. A lower plate portion is arranged to define an air channel portion and an air outlet arranged on a lateral side of the impeller portion when a side wall portion arranged to surround an outer circumference of the impeller portion and an upper plate portion arranged above the impeller portion are present. The air channel portion is arranged to extend in a circumferential direction between an outer circumference of the stator and the side wall portion. At least a portion of a circuit board is arranged in the air channel portion and on the lower plate portion. A plurality of lead wires extending from the stator are connected to the circuit board in the air channel portion.

FAN

A fan includes a motor, an impeller and a heat-dissipating structure. The motor includes a stator magnet assembly, a frame, a first circuit board, and a cover. The frame supports the stator magnet assembly. The frame and the stator magnet assembly define a first accommodating space, and the first circuit board is disposed in the first accommodating space. The cover covers the first circuit board. The motor drives the impeller and the impeller includes a hub and a plurality of first blades. The hub has at least a heat-dissipating hole. The first blades are disposed around the hub, and the heat-dissipating structure is disposed at the outer side of the hub. The heat-dissipating structure has a baffle and at least a second blade extended from the baffle and located corresponding to the heat-dissipating hole. 1. A fan comprising: a stator magnet assembly,', 'a frame for supporting the stator magnet assembly, wherein the frame and the stator magnet assembly define a first accommodating space,', 'a first circuit board disposed in the first accommodating space, and a cover covering the first circuit board;, 'a motor comprising a hub having at least a heat-dissipating hole, and', 'a plurality of first blades disposed around the hub; and, 'an impeller driven by the motor and comprisinga heat-dissipating structure disposed at the outer side of the hub, wherein the heat-dissipating structure has a baffle and at least a second blade extended from the baffle and located corresponding to the heat-dissipating hole.2. The fan of claim 1 , wherein the hub has at least a recess extending from the heat-dissipating hole claim 1 , and the second blade is engaged with the recess.3. The fan of claim 2 , wherein the second blade is partially disposed in the recess and partially suspended above the heat-dissipating hole claim 2 , and the shape of the recess corresponds to the shape of a part of a bottom edge of the second blade.4. The fan of claim 1 , wherein the hub has at least a first ...

CEILING FAN

A ceiling fan assembly having a motor assembly with a rotating blade hub, and at least one fan blade mounted to the rotating blade hub with a blade span defined between a tip and a root, and defining an airfoil cross section including a rounded leading edge and a v-shaped trailing edge defining a chord therebetween. The blade comprising a pressure side surface and a suction side surface extending between the leading and trailing edges and including a hollow interior and including a tip opening at the tip and a root opening at the root for accessing the hollow interior. The at least one fan blade includes a thickness to chord ratio of less than about 15%. 1. A ceiling fan assembly comprising:a motor assembly having a rotating blade hub; andat least one fan blade mounted to the rotating blade hub having a blade span defined between a tip and a root, and defining an airfoil cross section including a rounded leading edge and a v-shaped trailing edge defining a chord therebetween, with the blade comprising a pressure side surface and a suction side surface extending between the leading and trailing edges and including a hollow interior and including a tip opening at the tip and a root opening at the root for accessing the hollow interior;wherein the at least one fan blade includes a thickness to chord ratio of less than about 15%.2. The ceiling fan assembly of wherein the thickness to chord ratio is 13.8%.3. The ceiling fan assembly of wherein the chord is between 6 and 8 inches claim 1 , the span is between 6 and 12 feet claim 1 , and the rotational speed of the at least one blade is between 60 and 80 rpm.4. The ceiling fan assembly of wherein the chord is 7 inches claim 3 , the span of the at least one blade is about 12 feet claim 3 , and the rotational speed of the ceiling fan assembly is about 67 rpm.5. The ceiling fan assembly of wherein the pressure side surface and the suction side surfaces extending between the leading and trailing edges provide lift to the at ...

FAN HAVING AN IMPELLER INCLUDING A RESIN PORTION AND A METAL PLATE

A fan includes an impeller and a metallic base portion. The base portion is arranged to be in thermal contact with a heat source. The impeller includes a resin portion including a plurality of blades, and a metal plate. In addition, the metal plate includes a flat plate portion arranged below the blades. A lower surface of the flat plate portion and an upper surface of the base portion are arranged axially opposite to each other with a gap intervening therebetween. An axial dimension of the gap is arranged to be 200 □m or less at least at a portion of the gap. Heat of the heat source is transferred to the metal plate through radiation from the base portion. Then, an air current produced by the impeller absorbs the heat from the metal plate. The heat generated from the heat source is thus efficiently discharged to an outside. 1. A fan comprising:a motor arranged to produce a torque centered on a central axis extending;an impeller arranged to rotate through the torque to blow air in a centrifugal direction; a metallic base portion arranged to extend perpendicularly to the central axis below the impeller to support the motor, the impeller rotating with respect to the base portion;', 'a side wall portion arranged to surround the impeller in a circumferential direction radially outside the impeller while partly defining an outlet to discharge the air in the centrifugal direction; and', 'a cover arranged to extend perpendicularly to the central axis above the impeller, the cover including an inlet to take the air inside the for gas;, 'a housing to accommodate the impeller comprisingwherein the impeller includes:a resin portion including a blade support portion directly or indirectly fixed to a rotating portion of the motor, and a plurality of blades arranged radially outside of the blade support portion;a metal plate having a ring shape including an inner part and a flat plate portion provided circumferentially outside the inner part, the metal plate being attached to the ...

THIN COOLING FAN

A thin cooling fan includes a fan shell, a motor, a plurality of blades, and a PCB. The fan shell comprises a base plate and a shell cover which cover to each other to form an inner space. The base plate has a first surface facing toward the inner space and a second surface having a receiving space and opposite to the first surface. The motor is combined in the inner space. The blades are disposed in the inner space and rotated by the motor. The PCB is disposed in the receiving space and flush with the second surface. Thus, the whole thickness of the cooling fan is reduced and the flow channel design in the inner space is not affected. 1. A thin cooling fan , comprising:a fan shell comprising a base plate and a shell cover, wherein the base plate and the shell cover combined with each other to form an inner space and an air channel, wherein the base plate has a first surface facing the inner space and a second surface opposite to the first surface, wherein the second surface has a receiving space comprising a recess zone and a hollow zone, wherein the shell cover extends along the air channel to form a curved surface recessed toward the inner space;a motor installed in the inner space;a plurality of blades disposed in the inner space and driven by the motor; anda printed circuit board (PCB) disposed in the receiving space and flush with the second surface;wherein the shell cover comprises at least one guiding slot and at least one auxiliary inlet disposed in the at least one guiding slot, and the at least one guiding slot slopes from the surface of the shell cover toward the at least one auxiliary inlet which communicates with the air channel.2. The thin cooling fan according to claim 1 , wherein the air channel has an outlet claim 1 , a first pressurization zone claim 1 , and a second pressurization zone communicating with the first pressurization zone claim 1 , the first and the second pressurization zones are located at opposite sides of the inner space claim 1 , ...

FAN MOTOR

The present invention provides a fan motor which includes a housing, a stator disposed inside the housing, a rotor disposed inside the stator, a blade coupled to the rotor and a printed circuit board disposed under the blade, wherein the housing includes an upper housing and a lower housing, wherein a board coupling portion to which the printed circuit board is coupled is disposed concavely formed at a lower outer surface of the lower housing, and the first mounting portion of the printed circuit board is coupled to the board coupling portion, wherein the board coupling portion includes a component hole and the component hole is disposed between an outer circumferential surface of the blade and an inner circumferential surface thereof. Therefore, an advantageous effect that a component having a large height may be mounted within a limited design height. 1. A fan motor comprising:a housing;a stator disposed inside the housing;a rotor disposed inside the stator;a blade coupled to the rotor; anda printed circuit board disposed under the blade,wherein the housing includes an upper housing and a lower housing,wherein a board coupling portion to which the printed circuit board is coupled is disposed concavely formed at a lower outer surface of the lower housing, and the first mounting portion of the printed circuit board is coupled to the board coupling portion,wherein the board coupling portion includes a component hole and the component hole is disposed between an outer circumferential surface of the blade and an inner circumferential surface thereof.2. The fan motor of claim 1 , wherein the printed circuit board includes:a first mounting portion positioned inside a radius of the blade; anda second mounting portion positioned outside the radius of the blade,wherein a component mounted on the first mounting portion is inserted into the component hole.3. The fan motor of claim 2 ,wherein the upper housing including a board cover covering the part to cover the second ...

Fan motor

The present invention provides a fan motor which includes a housing, a stator disposed inside the housing, a rotor disposed inside the stator, a blade coupled to the rotor, and a printed circuit board disposed under the blade, wherein the printed circuit board includes a first mounting portion positioned inside a radius of the blade and a second mounting portion positioned outside the radius of the blade, and in which a component having a large height is mounted on the second mounting portion. Therefore, an advantageous effect that a component having a large height may be mounted within a limited design height.

Computer Accessory Systems Illuminated With Addressable LEDs

A peripheral, such as a cooling fan or LED strip, is illuminated with addressable LEDs, which allow interactive control of the LEDs from a connected controller to create variable lighting effects. The fan can receive power and control signals from a controller, such as a motherboard and associated microprocessor within a host electronic device. The controller output may be based upon event data received from a host electronic device, such as system or application information relayed by a driver installed in a personal computer. The lighting can, amongst other things, convey status of temperature, load, and/or access to components of a personal computer. The fan may also indicate, e.g., queued email or instant messages, by utilizing the LEDs to display associated lighting and effects. 1. A computer peripheral for installation within a housing of a host computer , the computer peripheral comprising:a plurality of LEDs distributed on the computer peripheral for illuminating a portion within a housing of a host computer,the plurality of LEDs being individually-addressable to receive signals from a controller driving time-variable individually-addressable illumination of each of the LEDs, based on a digital signal generated by a host computer central processing unit and transmitted to the controller.2. The computer peripheral of claim 1 , in which the computer peripheral comprises a fan.3. The computer peripheral of claim 2 , further comprising:a frame having a central cavity; andan impeller positioned within the central cavity and driven by an electric motor; the controller comprises a fan controller;', 'the plurality of LEDs are positioned around the central cavity; and', 'the portion within a housing of the host computer illuminated by the LEDs comprises the impeller., 'wherein4. The computer peripheral of claim 1 , in which the computer peripheral comprises a LED strip.5. The computer peripheral of claim 1 , in which the controller comprises a fan controller.6. The ...

Cooling fan and cooling device with cooling fan

A cooling fan includes a frame and a fan body. A bottom end of the frame forms a pressed portion that borders an air inlet. The pressed portion increases the size of the air inlet allowing more air to flow to better cool an electronic device.

Impeller and electric blower having the same

Disclosed herein is an impeller including: an upper surface, which is an air inlet portion; a lower surface, which is an air outlet portion; and blades formed between the upper and lower surfaces, wherein the upper and lower surfaces are provided with guide grooves for balancing of a motor.

FAN FRAME

A fan frame includes a metal base and a frame body. The metal base has a center portion, a plurality of supporting portions with strip shapes and a plurality of wing portions. Each of the supporting portions has a head end, a middle part and a tail end. The head end connects to a peripheral part of the center portion. The wing portions extend outwardly at an angle from the middle parts of the supporting portions, respectively. The frame body has a frame wall. The wing portions are partially at least covered by the frame body. Another fan frame is also disclosed. 1. A fan frame , comprising:a metal base having a center portion, a plurality of supporting portions with strip shapes and a plurality of wing portions, wherein each of the supporting portions has a head end, a middle part and a tail end, the head end connects to a peripheral part of the center portion, the wing portions extend outwardly at an angle from the middle parts of the supporting portions, respectively; anda frame body having a frame wall, wherein the wing portions are at least partially covered by the frame body.2. The fan frame according to claim 1 , wherein the angle is an obtuse angle.3. The fan frame according to claim 1 , wherein frame body is made of plastic.4. The fan frame according to claim 1 , wherein the wing portions are flat structures.5. The fan frame according to claim 1 , wherein the frame wall is made of metal claim 1 , the supporting portions radially extend from the frame wall inwardly and connect to the center portion.6. The fan frame according to claim 1 , wherein the center portion claim 1 , the supporting portions and the wing portions are integrally formed as one piece.7. The fan frame according to claim 1 , further comprising:a peripheral connection portion, wherein the peripheral connection portion is an annular structure, the tail ends of the supporting portions connect to the peripheral connection portion.8. The fan frame according to claim 7 , wherein the center portion ...

Rotor struture of fan and manufacturing method thereof

A rotor structure of a fan includes a bushing, a hub, a shaft and a plurality of blades. The hub has a top portion and a sidewall, and the top portion of the hub covers the bushing. The hub and the bushing are made by the same material. One end of the shaft is connected to the bushing, and the shaft is disposed inside the top portion. The blades are disposed on the outer side of the sidewall of the hub. A manufacturing method of the rotor structure is also disclosed.

AXIAL FLOW FAN MOTOR

An axial flow fan motor comprises: a casing outer frame ; an impeller ; a rotor shaft as a rotation axis at a center of the impeller ; a bearing housing in an inside of a rotor housing ; and a base portion hub in an air blowout opening side , wherein, in a cross-sectional view along the rotation axis, the base portion hub has an outer peripheral portion at least partially inclined to the rotation axis side by an angle θ1 toward the air blowout opening side with regard to a straight line parallel to the rotation axis, and the casing outer frame has an inner peripheral portion at least partially inclined to the rotation axis side by an angle θ2 toward the air blowout opening side with regard to a straight line parallel to the rotation axis. 1. An axial flow fan motor of an outer rotor type , comprising:a casing outer frame;an impeller disposed to an air suction opening side of the casing outer frame, having a rotor housing and a vane disposed around an outer periphery thereof;a rotor shaft disposed at a center of the impeller, functioning as a rotation axis thereof;a bearing housing disposed to an inside of the rotor housing and an outer periphery of the rotor shaft, supporting rotatably the rotor shaft; anda base portion hub disposed to an air blowout opening side of the casing outer frame, fixing the bearing housing,wherein, in a cross-sectional view along the rotation axis, the base portion hub has an outer peripheral portion at least partially inclined to the rotation axis side by an angle θ1 toward the air blowout opening side with regard to a straight line parallel to the rotation axis, and the casing outer frame has an inner peripheral portion at least partially inclined to the rotation axis side by an angle θ2 toward the air blowout opening side with regard to a straight line parallel to the rotation axis.2. The axial flow fan motor according to claim 1 , wherein the angle θ1 is equal to or larger than the angle θ2.3. The axial flow fan motor according to ...

Fan module

A fan module includes a casing, a fan, and two vibration absorption assemblies. The casing has an accommodating space. The fan is located in the accommodating space and keeps a distance from the casing. Each of the two vibration absorption assemblies includes two first vibration absorption components and a second vibration absorption component. The two first vibration absorption components are respectively in contact with the fan and separated from the casing, respectively. The second vibration absorption component is connected with two first vibration absorption components and the casing, respectively. The first vibration absorption components and the second vibration absorption components are adapted for absorbing the vibration waves having different frequency ranges.

ELECTRONIC PUMP

An electronic pump includes a controller. The controller includes a power input terminal, a printed circuit board, a motor driver and a microprocessor. The power input terminal, the microprocessor and the motor driver are spaced from each other by an electronic clearance and are fixedly connected to the printed circuit board. The microprocessor is electrically connected to the motor driver by the printed circuit board. The motor driver drives a motor to rotate based on a drive control signal from the microprocessor. There is no motor drive circuit composed by discrete components and configured to drive the motor to rotate separately arranged on the printed circuit board between the motor driver and a motor. 1. An electronic pump , comprising a controller and a motor; the controller comprising a power input terminal , a printed circuit board , a motor driver and a microprocessor; the power input terminal , the microprocessor and the motor driver being spaced from each other and being fixedly connected to the printed circuit board; the microprocessor being electrically connected to the motor driver by the printed circuit board;wherein the microprocessor outputs or stops outputting a motor drive control signal based on a received control signal; the motor driver drives the motor to rotate based on the motor drive control signal from the microprocessor;and wherein there is no motor drive circuit composed by discrete components and configured to drive the motor to rotate arranged separately on the printed circuit board between the motor driver and the motor.2. The electronic pump according to claim 1 , wherein the motor driver comprises an overcurrent protection unit; the overcurrent protection unit starts to perform self-protection when a current passing through the motor exceeds a preset range.3. The electronic pump according to claim 2 , whereinthe overcurrent protection unit comprises a current or voltage detection unit detecting a value of current or voltage passing ...

Light Emitting Fan Device with a Hybrid of Light-Reflective and Light-Guiding Mechanisms

A light-emitting cooling fan includes a base, a bracket arranged above the base, an impeller located in between the base and the bracket, a light source disposed on the bracket, a reflector disposed on a hub of the impeller and a light guiding member. The light source points downward to the hub of the impeller. The reflector is disposed underneath the light source, and configured for reflecting light from the light source in a radial direction of the hub. The light guiding member is disposed underneath the light source, and configured for receiving the light from the reflector and leading the light to travel along the radial direction of the hub to outside of the hub and then hit one of fan blades of the impeller. In this way, rotation of the impeller transfers the light into a halo visual illusion for human eyes.

THIN COOLING FAN

A thin cooling fan includes a fan shell, a motor, a plurality of blades, and a PCB. The fan shell comprises a base plate and a shell cover which cover to each other to form an inner space. The base plate has a first surface facing toward the inner space and a second surface having a receiving space and opposite to the first surface. The motor is combined in the inner space. The blades are disposed in the inner space and rotated by the motor. The PCB is disposed in the receiving space and flush with the second surface. Thus, the whole thickness of the cooling fan is reduced and the flow channel design in the inner space is not affected. 1. A thin cooling fan , comprising:a fan shell comprising a base plate and a shell cover, wherein the base plate and the shell cover cover to each other to form an inner space and an air channel, wherein the base plate has a first surface facing toward the inner space and a second surface opposite to the first surface, wherein the second surface has a receiving space comprising a recess zone and a hollow zone, wherein the shell cover extends along the air channel to form a curved surface recessed toward the inner space;a motor installed in the inner space;a plurality of blades disposed in the inner space and driven by the motor to rotate; anda printed circuit board (PCB) disposed in the receiving space and flush with the second surface.2. The thin cooling fan according to claim 1 , wherein the air channel has an outlet claim 1 , a first pressurization zone claim 1 , and a second pressurization zone communicating with the first pressurization zone claim 1 , wherein the first and the second pressurization zones are disposed at both sides of the outlet claim 1 , wherein the air channel has a channel width claim 1 , wherein the channel width of the first pressurization zone is less than that of the second pressurization zone.3. The thin cooling fan according to claim 2 , wherein the curved surface is disposed in the second pressurization ...

Heat dissipating fin assembly

A heat dissipating fin assembly includes a bottom, a plurality of first heat dissipating fins, a plurality of second heat dissipating fins, an inner cover and an outer cover. The first heat dissipating fins extend from an inner end toward an outer end. The second heat dissipating fins are arranged between two of the first heat dissipating fins in staggered. The inner cover is disposed near the inner end and connected to the first heat dissipating fins. The outer cover is disposed near the outer end and connected to the second heat dissipating fins. The inner cover and the outer cover are separated to form an opening, and the dusts entering the heat dissipating fin assembly through the inner end are ejected via the opening. The second heat dissipating fins extend from around the opening to the outer end.

Centrifugal Fan

A centrifugal fan includes a fan frame, a stator assembly and an impeller. The fan frame has a base plate portion, a cover plate portion and a lateral wall portion. The cover plate portion includes first and second faces. The cover plate portion includes an air inlet, and the lateral wall portion includes an air outlet. The impeller has a radial rotational range. The cover plate portion includes an air-guiding section and an enlarged guiding section. The air-guiding section is aligned with the radial rotational range, and the enlarged guiding section is aligned with an area outside the radial rotational range. A part of the second face is spaced from a bottom of the base plate portion by a first minimal axial distance, and another part of the second face is spaced from the bottom by a second minimal axial distance smaller than the first minimal axial distance. 1. A centrifugal fan comprising:a fan frame having a base plate portion and a cover plate portion, wherein a lateral wall portion is arranged between the base plate portion and the cover plate portion, wherein the cover plate portion comprises a first face and a second face opposite to the first face, wherein the first face faces the base plate portion, wherein the cover plate portion further comprises an air inlet extending from the first face to the second face, and wherein the lateral wall portion comprises an air outlet;a stator assembly received in the fan frame; andan impeller rotatably coupled with the stator assembly between the base plate portion and the cover plate portion, wherein the impeller has a radial rotational range;wherein the cover plate portion of the fan frame further comprises an air-guiding section and an enlarged guiding section, wherein the air-guiding section is aligned with the radial rotational range of the impeller, wherein the enlarged guiding section is aligned with an area outside the radial rotational range of the impeller, wherein a part of the second face that is located ...

Mount bracket

The disclosure provides a mount bracket which is configured for a fan. The mount bracket includes a button plate, a frame and a plurality of vibration-absorbing components. The button plate is mounted with a motor mount. The frame surrounds the button plate, and the frame has an inner lateral surface and an outer lateral surface. A plurality of fixing structures protrude from the outer lateral surface of the frame. The inner lateral surface of the frame and an outer lateral surface of the button plate form an annular gap therebetween. The vibration-absorbing components are spaced apart from each other and located in the annular gap, and the vibration-absorbing components are located between and connected to the outer lateral surface of the button plate and the inner lateral surface of the frame.

FAN SYSTEM

A fan system in combination with a DC brushless motor. The DC brushless motor includes: a shaft, a base, a stator assembly, a rotor assembly, a control box including a second cavity, and a circuit board. The fan system includes: a blower housing, a wind wheel, a first mounting bracket, and a second mounting bracket. The first mounting bracket is arranged at a first air inlet. The outer side of the first mounting bracket is connected to the upper end surface. The inner side of the first mounting bracket is provided with a first bearing, and the other end of the shaft is disposed on the first bearing. The second mounting bracket is arranged at a second air inlet. The outer side of the second mounting bracket is connected to the lower end surface. 2. The fan system of claim 1 , wherein{'b': 22', '25', '11, 'the base () and the control box () are arranged together and positioned in the first cavity (); and'}{'b': 5', '25, 'the inner side of the second mounting bracket () is connected to the control box ().'}3. The fan system of claim 1 , wherein{'b': 25', '1, 'the control box () is arranged outside the blower housing ();'}{'b': 26', '25', '23', '11, 'the circuit board () is arranged inside the control box () and is in electric connection with the stator assembly () in the first cavity () through a wire; and'}{'b': 5', '22, 'the inner side of the second mounting bracket () is connected to a bottom of the base ().'}4. The fan system of claim 1 , wherein{'b': 241', '24, 'a flange plate () is fixed outside the rotor assembly ();'}{'b': 31', '3', '24, 'a center hole is disposed on the connecting plate () in the middle of the wind wheel (); the rotor assembly () is disposed in the center hole; and'}{'b': 241', '31, 'the flange plate () is connected to the connecting plate () via a screw.'}5. The fan system of claim 2 , wherein{'b': 241', '24, 'a flange plate () is fixed outside the rotor assembly ();'}{'b': 31', '3', '24, 'a center hole is disposed on the connecting plate () ...

Fan motor

A fan motor includes a motor, an impeller, and a housing. The motor includes a stationary portion including a stator, and a rotating portion that rotates about a center axis extending vertically. The impeller includes blades and rotates with the rotating portion. The housing accommodates at least a portion of the motor and the impeller in the housing. The housing includes a cylindrical portion, a flange portion, and at least one rib. The cylindrical portion has a cylindrical shape, extends in an axial direction, and accommodates at least a portion of the motor and the impeller in the cylindrical portion. The flange portion protrudes radially outward from an upper end portion or a lower end portion of the cylindrical portion. The at least one rib has a columnar shape, extends from the flange portion on an outer peripheral surface of the cylindrical portion, and is inclined against the axial direction.

BLOWER

A blower includes a moving blade rotatable about a central axis, a motor to rotate the moving blade, a housing, and a substrate. The housing includes a holding portion below the moving blade to hold the motor, and a peripheral wall portion having a cylindrical shape extending upward from a radially outer end portion of the holding portion. The peripheral wall portion includes a peripheral wall recess recessed downward from an upper end of the peripheral wall portion and connecting a space radially inside and a space radially outside of the peripheral wall portion. The peripheral wall recess includes a first peripheral surface that opposes one circumferential direction opposite to a rotation direction of the moving blade, the first peripheral surface extending from an upper end of the peripheral wall recess toward a lower side of the peripheral wall portion. 1. A blower comprising:a moving blade rotatable about a central axis extending in a vertical direction;a motor to rotate the moving blade;a housing surrounding the moving blade and the motor; anda substrate; whereinthe housing includes a holding portion below the moving blade to hold the motor, and a peripheral wall portion having a cylindrical shape centered on the central axis and extending upward from a radially outer end portion of the holding portion;the peripheral wall portion includes a peripheral wall recess recessed downward from an upper end of the peripheral wall portion and connecting a space radially inside of the peripheral wall portion and a space radially outside of the peripheral wall portion;the peripheral wall recess includes a first peripheral surface that faces one circumferential direction that is opposite to a rotation direction of the moving blade, the first peripheral surface extending in the one circumferential direction from an upper end of the peripheral wall recess toward a lower side;the substrate is radially inside of the peripheral wall portion; andthe substrate opposes the ...

Fan module test system

A fan module test system includes a control device, a switch unit, a wind speed sensor, and a micro control unit. The control device outputs test instructions. The switch unit receives the test instructions, and controls a fan to rotate at a rotational speed according to the test instructions. The wind speed sensor detects a wind speed. The switch unit collects rotational speed signals and wind speed signals. The micro control unit receives the rotational speed signals and the wind speed signals, and transmits the rotational speed signals and the wind speed signals to the control device. The control device determines whether the fan meets heat dissipation requirements according to the rotational speed signals and the wind speed signals.

Axial fan

An axial fan includes a rotor portion including a shaft arranged to extend along a central axis extending in a vertical direction; a stator portion arranged radially opposite to the rotor portion; and an impeller hub fixed to the rotor portion, and arranged to be capable of rotating integrally with the rotor portion. The impeller hub is an injection molded article, and includes a hub top plate portion arranged to extend perpendicularly to an axial direction; a hub tubular portion being tubular, and arranged to extend axially downward from an outer edge of the hub top plate portion; a plurality of blades arranged in a circumferential direction on an outer surface of the hub tubular portion; and an inner fixing portion arranged radially inward of the hub tubular portion. The rotor portion includes a rotor tubular portion being tubular and arranged to extend in the axial direction. The inner fixing portion includes a first region arranged radially opposite to an outer surface of the rotor tubular portion with a gap therebetween, and having a weld defined in a radially inner surface thereof; and a second region arranged to be in contact with at least a portion of the outer surface of the rotor tubular portion.

AXIAL FAN

An axial fan includes a rotor portion, a stator portion arranged radially opposite to the rotor portion, and an impeller hub fixed to the rotor portion, and arranged to be capable of rotating integrally with the rotor portion. The impeller hub includes a hub top plate portion; a hub tubular portion being tubular, and arranged to extend axially downward from an outer edge of the hub top plate portion; a plurality of blades arranged in a circumferential direction; a plurality of wall portions arranged in the circumferential direction radially inside of the hub tubular portion; and a joining portion arranged to join a corresponding one of the wall portions to the hub tubular portion. A radially outer surface of the rotor tubular portion is arranged to be in contact with an inner surface of at least one of the wall portions. 1. An axial fan comprising: a stator portion arranged radially opposite to the rotor portion; and', 'an impeller hub fixed to the rotor portion, and arranged to be capable of rotating integrally with the rotor portion;, 'a rotor portion including a shaft arranged to extend along a central axis extending in a vertical direction;'} [ a hub top plate portion arranged to extend perpendicularly to an axial direction;', 'a hub tubular portion being tubular, and arranged to extend axially downward from an outer edge of the hub top plate portion;', 'a plurality of blades arranged in a circumferential direction on an outer surface of the hub tubular portion;', 'a plurality of wall portions arranged in the circumferential direction radially inside of the hub tubular portion; and', 'a joining portion arranged to join a corresponding one of the wall portions to the hub tubular portion;, 'the impeller hub includes, 'the rotor portion includes a rotor tubular portion being tubular and arranged to extend in the axial direction; and', 'a radially outer surface of the rotor tubular portion is arranged to be in contact with an inner surface of at least one of the ...

Compact centrifugal air blowers for air cushion supported cargo loading platform

The present disclosure includes cargo loading systems and components including cargo systems utilizing one or more air cushions to elevate one or more cargo shuttles. Air is delivered to the air cushions by compact centrifugal air blowers. Such compact centrifugal air blowers are designed to provide sufficient power to inflate air cushions, while having a sufficiently short profile.

Compact centrifugal air blowers for air cushion supported cargo loading platform

The present disclosure includes cargo loading systems and components including cargo systems utilizing one or more air cushions to elevate one or more cargo shuttles. Air is delivered to the air cushions by compact centrifugal air blowers. Such compact centrifugal air blowers are designed to provide sufficient power to inflate air cushions, while having a sufficiently short profile.

Cooling device

A cooling device includes: a fan motor including a rotation shaft, an impeller supported by the rotation shaft, and a sleeve bearing unit pivotally supporting the rotation shaft; and a heat sink including heat radiation pins extending from a base portion. The fan motor is placed on the heat sink. The impeller includes a blade support element supported by the rotation shaft and a fan blade extending from the blade support element in an outer peripheral direction of the rotation shaft. The heat radiation pins extend from the base portion toward the sleeve bearing unit in a direction along the rotation shaft. The impeller is spaced apart from the heat radiation pins between the sleeve bearing unit and the heat radiation pins. The blade support element and at least one of the heat radiation pins overlap with each other as viewed in a direction of the rotation shaft.

AXIAL FAN

There is provided with an axial fan comprising an impeller having a plurality of vanes; a motor rotating the impeller; a casing housing the impeller and the motor; a motor base mounting the motor; and a plurality of spokes connecting the motor base and the casing, wherein the motor base has a plurality of reinforcement ribs thereon, the plurality of reinforcement ribs being equal to or more than the plurality of spokes in number, and wherein the casing has a natural frequency equal to or higher than a frequency being transmitted to the casing from the motor when the motor is rotated at a rotation speed of 20000 rpm or more. 1. An axial fan comprising:an impeller having a plurality of vanes;a motor rotating the impeller;a casing housing the impeller and the motor;a motor base mounting the motor; anda plurality of spokes connecting the motor base and the casing,wherein the motor base has a plurality of reinforcement ribs thereon, the plurality of reinforcement ribs being equal to or more than the plurality of spokes in number, andwherein the casing has a natural frequency equal to or higher than a frequency being transmitted to the casing from the motor when the motor is rotated at a rotation speed of 20000 rpm or more.2. The axial fan according to claim 1 , wherein the plurality of spokes comprises at least seven spokes.3. The axial fan according to claim 1 , wherein each of the plurality of spokes is inclined at a predetermined angle with regard to a plane perpendicular to a rotation axis rotating integrally with the impeller.4. The axial fan according to claim 1 , further comprising a hollow boss protrusively disposed around a center of the motor base claim 1 , wherein each of the plurality of reinforcement ribs is formed in an equal width with extending distance from an outer periphery side of the boss to an outer periphery side of the motor base.5. The axial fan according to any claim 1 , further comprising a hollow boss protrusively disposed around a center of ...

Fan and method of manufacturing a fan

One embodiment provides a fan, including: a hub for connection to a motor; and a plurality of blades coupled to the hub, the plurality of blades being mutually diverging from the hub and spaced apart around a common rotating axis, with each of the plurality of blades defining a centroid, wherein at least one blade of the plurality of blades is deviated with respect to a corresponding centroid of the at least one blade to provide a non-uniform arrangement of the plurality of blades while maintaining a respective centroid of the plurality of blades on a common circumference around the common rotating axis. Other aspects are described and claimed.

Fan Frame and Fan Including the Same

A fan frame includes a housing, a shaft tube, a circuit board and a plurality of light-emitting elements. The housing includes a base and a plurality of connection members located between the base and a peripheral wall of the housing. The shaft tube is mounted on the base. The circuit board is mounted in the housing and includes a body having a through-hole. The circuit board is fit around the shaft tube via the through-hole and is integrally formed with a plurality of protruding ribs and at least one outer rib. Each protruding rib is aligned with a respective connection member. Each outer rib is located between two adjacent protruding ribs. The light-emitting elements are mounted on the protruding ribs and the outer rib. A fan including the fan frame is also disclosed. 1. A fan frame comprising:a housing including a base and a plurality of connection members located between the base and a peripheral wall of the housing;a shaft tube mounted on the base;a circuit board mounted in the housing and including a body having a through-hole, wherein the circuit board is fit around the shaft tube via the through-hole and is integrally formed with a plurality of protruding ribs and at least one outer rib, wherein each of the plurality of protruding ribs is aligned with a respective one of the plurality of connection members, and wherein each of the at least one outer rib is located between two adjacent ones of the plurality of protruding ribs, and wherein each of the at least one outer rib has two ends, wherein one of the two ends connects to an adjacent one of the plurality of protruding ribs; anda plurality of light-emitting elements mounted on a surface of each of the plurality of protruding ribs facing away from the plurality of connection members and a surface of each of the at least one outer rib facing away from the plurality of connection members,wherein the circuit board and the base are integrally formed with each other.2. A fan frame comprising:a housing including ...

CENTRIFUGAL FAN

There is provided a centrifugal fan including a casing having an upper casing with an opening and a lower casing with a recess, a motor disposed in the recess, and an impeller housed in the casing. The impeller includes an annular shroud formed with an inlet, plural blades which are arranged between the annular shroud and the lower casing, and a hub which is connected to respective inner sides of the blades. Each of the blades includes, at a pressure surface side, a first inclined surface which is inclined toward a negative pressure surface of the blade as approaching the lower casing from the annular shroud; and a second inclined surface which is provided closer to the lower casing than the first inclined surface, and is inclined toward the negative pressure surface at an angle steeper than that of the first inclined surface. 1. A centrifugal fan comprising:a casing including an upper casing having an opening, a lower casing having a recess, and supports interposed between the upper casing and the lower casing;a motor disposed in the recess of the lower casing; andan impeller housed in the casing, an annular shroud which has an upper inner portion formed with an inlet;', 'a plurality of blades which are arranged between the annular shroud and the lower casing while protruding downward from the annular shroud; and', 'a hub which is connected to respective inner sides of the plurality of blades,, 'wherein the impeller includeswherein a fluid introduced from the inlet of the annular shroud is discharged to a side of the impeller according to rotation of the impeller,wherein an upper surface of the lower casing faces the impeller and configures a portion of a wall surface which guides the fluid introduced from the inlet,wherein each of the plurality of blades is inclined while being curved backward in a rotation direction of the impeller as approaching an outer side of the impeller, and a first inclined surface which is inclined toward a negative pressure surface of ...

Dual Operation Centrifugal Fan Apparatus And Methods Of Using Same

Dual operation centrifugal fan apparatus and methods of operating same that may be used, for example, to cool the internal heat-generating components of an information handling system or other device. The dual operation centrifugal fan apparatus may be implemented in one embodiment as a self-cleaning blower apparatus that is operated in a first normal cooling direction to dissipate heat from internal components of an information handling system, and operated in second cleaning direction to reverse airflow and expel accumulated dust from the interior of the information handling system. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. A centrifugal fan apparatus , comprising:a stator housing component and a vaned rotor component rotatably received therein;a first circumferential opening defined in the stator housing, the first circumferential opening configured to act as a gas outlet when the vaned rotor component rotates in a first direction;a second circumferential opening defined in the stator housing, the second circumferential opening configured to act as a gas outlet when the vaned rotor component rotates in a second direction that is opposite in rotation from the first direction; andan axial gas opening defined in the stator housing component over the vaned rotor component, the axial gas opening configured to act as a gas inlet when the vaned rotor component rotates in the first direction.11. The apparatus of claim 10 , wherein the first circumferential opening defined in the stator housing is further configured to act as a gas inlet when the vaned rotor component rotates in a second direction that is opposite in rotation from the first direction.12. The apparatus of claim 11 , wherein the stator housing component has a rotor cavity defined therein; wherein the vaned rotor component is rotatably received within the rotor cavity of the stator housing component claim 11 , the vaned rotor ...

Cooling device, guard unit, and server

A cooling device includes a fan; an intake-side intrusion-preventing member that is provided on an intake side of the fan and prevents an object from entering the fan; an exhaust-side intrusion-preventing member that is provided on an exhaust side of the fan and prevents an object from entering the fan. The intake-side intrusion-preventing member and the exhaust-side intrusion-preventing member have different shapes.

FAN IMPELLER STRUCTURE AND COOLING FAN THEREOF

A fan impeller structure and a cooling fan thereof. The fan impeller structure consisting of a hub and a flow guide body. The hub has an extension section extending from outer circumference of the hub. The extension section has a first face and a second face. An axial center of the flow guide body is defined with an axial line. A fitting section outward extends from the axial line. A spoiler section is connected to the fitting section in a direction away from the axial line. The spoiler section is formed with multiple axial perforations that communicate with multiple radial perforations. The flow guide body is disposed on the first or second face of the extension section of the hub. The flow guide body is employed to replace the blades of conventional cooling fan. The perforations of the flow guide body can forcedly guide air in a narrow space. 1. A fan impeller structure consisting of a hub and a flow guide body , the hub having an extension section extending from outer circumference of the hub , the extension section having a first face and a second face , an axial center of the flow guide body being defined with an axial line , a fitting section outward extending from the axial line , a spoiler section being connected to the fitting section in a direction away from the axial line , the spoiler section being formed with multiple axial perforations that communicate with multiple radial perforations such that an airflow is guided through said perforations and propelled by said spoiler , the flow guide body being disposed on the first face or the second face of the extension section of the hub , and the flow guide body is selected from a group consisting of a foamed porous structure , a spongey , porous wooden material and a foamed metal.2. The fan impeller structure as claimed in claim 1 , wherein a recess is formed between the fitting section of the flow guide body and the outer circumference of the hub.3. The fan impeller structure as claimed in claim 2 , wherein ...

AXIAL FAN AND CONTROL METHOD THEREOF

An axial fan includes a fan frame, an impeller and a motor. The fan frame has a frame body, a base and plural connecting members. The base is disposed at the center of a side of the frame body. The connecting members connect the frame body to the base. The impeller is accommodated in the frame body and disposed on the base. The impeller has a rotating shaft, a hub and plural blades disposed around the hub. The motor is disposed on the base and connects with the rotating shaft to drive the impeller to rotate. When the impeller rotates forwardly, the airflow is induced to flow through the connecting members, blades, and one side of the frame body away from the base. When the impeller rotates reversely, the airflow is induced to flow through the side of the frame body, blades and connecting members. 1. A control method of an axial flow fan , comprising the steps of:providing a pulse width modulation signal;calculating whether a duty cycle of the pulse width modulation signal is lasted for a period of time; anddetermining the duty cycle of the pulse width modulation signal when the duty cycle of the pulse width modulation signal is lasted for the period of time;wherein when the duty cycle is in a first determining range, the axial flow fan is controlled to stop operating; when the duty cycle is in a second range, the axial flow fan is controlled to rotate forwardly; and when the duty cycle is in a third range, the axial flow fan is controlled to rotate reversely.2. The control method according to claim 1 , wherein when the duty cycle is in the second range or the third range claim 1 , the rotation speed of the axial flow fan is further controlled.3. The control method according to claim 1 , further comprising claim 1 , before the step of providing the pulse width modulation signal claim 1 , a step of:transforming an input control signal into the pulse width modulation signal.4. The control method according to claim 1 , wherein the first determining range is a stop range ...

FAN HAVING OUTER ELECTRONICS

A fan includes a fan housing and a motor accommodated therein. The motor has a stator and a rotor, which is connected to a fan wheel. The fan housing consists of at least a housing upper part and a housing lower part. The housing upper part has an axial opening on the axial inner face of which facing the housing lower part the stator is arranged. On the axial outer face of the axial opening at least electronics are arranged. 1. A fan comprising:a fan housing; a fan wheel accommodated in the fan housing; wherein', 'the fan housing is formed of at least one housing upper part and a housing lower part;', 'the housing upper part has an axial opening, on an axial inner side facing the housing lower part; and', 'electronics are disposed and on an axial outer side of the stator., 'a motor accommodated within the fan housing, the motor including a stator and a rotor; and'}2. The fan according to claim 1 , wherein the electronics include motor control electronics or a unit of motor control electronics and adjoining electronics for supplying external consumers.3. The fan according to claim 1 , wherein the housing upper part forms part of an electronics housing.4. The fan according to claim 2 , wherein the motor control electronics are wirelessly connected to the stator through the axial opening of the housing upper part and can be detached from the stator.5. The fan according to claim 1 , wherein the stator comprises a connecting ring via which the stator can be attached axially and/or radially resting against a circumferential edge of the axial opening.6. The fan according to claim 1 , wherein the connecting ring comprises at least one circumferential step claim 1 , thereby forming an axial contact surface and a radial contact surface on the edge of the axial opening and a support surface parallel to the radial extension of the axial opening on which the electronics are mounted directly.7. The fan according to wherein the housing upper part has a central section that is ...

Fan controlling method and notebook thereof

The fan controlling method comprises following steps: Firstly, a current rotation speed of a fan is obtained. Next, whether the current rotation speed is not greater than an expected rotation speed corresponding to the first type is determined. Then, whether a rotation speed variance between the current rotation speed and the expected rotation speed is not greater than a reasonable variance is determined when the current rotation speed is not greater than the expected rotation speed. Then, a determination that the fan belongs to the first type is made when the rotation speed variance is not greater than the reasonable variance, and a determination that the fan belongs to the second type is made when the rotation speed variance is greater than the reasonable variance, wherein the second type is different from the first type.

Blower fan

A lower plate includes a lower air inlet arranged radially outward of a bearing portion. In a plan view, a plane is divided into four regions by a first straight line which is parallel to an air outlet and crosses a central axis and a second straight line which is perpendicular to the air outlet and crosses the central axis, and one of the four regions in which a tongue portion is arranged is a first region, followed by a second region, a third region, and a fourth region in this order in a rotation direction of the blades. The air outlet is arranged to extend over both the first and fourth regions.

Cooling fan and electronic device having the same

A cooling fan includes a base plate and a central tube connected to a center of the base plate. The central tube is made of metal by injection molding, and is a hollow cylinder with both ends open. An outer circumferential surface of one end adjacent to the base plate is connected to the base plate by laser welding, thereby forming a melted layer at a connecting portion between the outer circumferential surface of the end and the base plate.

Fan module

A fan module, applied to a server including a first joint portion, includes a fan body, a first metal casing, a second metal casing and a plastic handle. The fan body includes an outlet surface, an inlet surface opposite to the outer surface, a first lateral surface and a second lateral surface. The first and second lateral surfaces are located between the outlet surface and the inlet surface. The first metal casing includes an air-through wall located on the outlet surface or the inlet surface, a first lateral wall connected to the air-through wall and mounted on the first lateral surface, and a metal handle connected to the first lateral wall. The second metal casing includes a second lateral wall mounted on the second lateral surface. The plastic handle, mounted on the second lateral wall, includes a second joint portion, for being engaged with the first joint portion.

FAN STRUCTURE WITH WEAR RESISTANT FILM COATED SHAFT LINER

A fan structure with a wear resistant film coated shaft liner includes a stator, a fan blade and a fan shield. The stator includes an axle center at a center portion thereof. The fan blade comprises a blade wheel, a shaft liner arranged at a center of the blade wheel and extended axially therefrom, a plurality of blades arranged to circumference the blade wheel externally and a magnetic unit arranged on the blade wheel. The fan shield covers the fan blade externally and includes a fixation portion for securing the axle center. The shaft liner of the fan blade includes an axial hole in order to allow the axle center of the stator to pivotally attach thereto. The axial hole is of a blind hole shape, and an inner wall surface of the axial hole is coated with a wear resistant film in contact with the axle center. 1. A fan structure with a wear resistant film coated shaft liner comprising:a stator having an axle center at a center portion thereof;a fan blade comprising a blade wheel, a shaft liner arranged at a center of the blade wheel and extended axially therefrom, a plurality of blades arranged to circumference the blade wheel externally and a magnetic unit arranged on the blade wheel; anda fan shield covering the fan blade externally; the fan shield having a fixation portion formed therein in order to secure the axle center;wherein the shaft liner of the fan blade includes an axial hole formed therein and provided to allow the axle center of the stator to be pivotally attached thereto; the axial hole is of a blind hole shape; and an inner wall surface of the axial hole is coated with a wear resistant film in contact with the axle center.2. The fan structure with a wear resistant film coated shaft liner according to claim 1 , wherein the center of the blade wheel of the fan blade includes a fixation hole formed thereon; and the shaft liner includes a fixation edge inserted into the fixation hole and is constructed by a sleeve shaft portion arranged underneath the ...

Fan assembly

A fan assembly includes a fan, a guiding board, and a weight. The fan includes an end board defining a vent. The guiding board is pivotably mounted to a top of the end board. The weight is detachably mounted to the guiding board.

Mixed-flow fan

A mixed flow fan includes a bottom base, an outer cover disposed on the bottom base, a motor disposed on the base, and a hub located between the outer case and the motor. The hub includes a first outer surface and a second outer surface connected to the first outer surface and inclined relative to the first outer surface. The slope of the first outer surface relative to the central axis is greater than the slope of the second outer surface relative to the central axis. The base includes a side surface adjacent to the second outer surface. The slope of the side surface relative to the central axis is equal to the slope of the second outer surface relative to the central axis.

CEILING FAN

A ceiling fan including a retention system and method of redundantly retaining a ceiling fan can include a ceiling fan motor assembly including a hollow motor shaft at least partially surrounded by a motor housing. A retainer plate is provided at the bottom of the motor housing including an opening. A retainer rod extends through the opening in the retainer plate and secures to the retainer plate. A support cable couples to the retainer rod to suspend the retainer plate from a structure, wherein the retainer plate is configured to redundantly retainer the ceiling fan. 1. A ceiling fan comprising:a motor assembly having an annular, hollow, non-rotating motor shaft and a motor housing;a retainer plate positioned at a bottom of the motor housing and wholly below the motor shaft; anda retainer coupled to the retainer plate, and passing longitudinally along and at least partially through the motor shaft.2. The ceiling fan of wherein the retainer is a retaining rod.3. The ceiling fan of wherein the retainer plate includes an opening and the retainer passes through the opening.4. The ceiling fan of wherein an end of the retainer has a cap that abuts the retainer plate to carry the retainer plate.5. The ceiling fan of wherein the retainer extends through the retainer plate and the retainer plate hangs on the cap.6. The ceiling fan of wherein the retainer plate includes a recessed portion configured to seat the cap.7. The ceiling fan of wherein the retainer couples to a structure suspending the ceiling fan.8. The ceiling fan of wherein the retainer plate includes an inner portion and an outer portion with the inner portion raised from the outer portion.9. The ceiling fan of wherein the outer portion is configured to carry the motor assembly at the motor housing.10. The ceiling fan of further comprising at least one mounting hole provided in the retainer plate.11. The ceiling fan of wherein the motor shaft mounts to the retainer plate at the at least one mounting hole.12. The ...

WATERPROOF AXIAL FLOW FAN

A waterproof axial flow fan includes: a rotor having a rotating shaft pivotally supported by a bearing in a rotatable manner, an impeller provided to a tip of the rotating shaft and a rotor cover; a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; and at least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing. 1. A waterproof axial flow fan comprising:a rotor having a rotating shaft pivotally supported by a bearing in a rata table manner, an impeller provided to a tip of the rotating shaft, and a rotor cover;a stator having a winding and a circuit board, a surface of which is coated with an electrically insulating synthetic resin; andat least one ring collection groove part formed in a resin surface opposing to the rotor cover at an apex of the stator so as to surround a tip of a bearing holding part for holding the bearing.2. The waterproof axial flow fan according to including a plurality of the ring-like collection groove parts claim 1 ,wherein the ring-like collection groove parts are concentrically formed around the tip of the bearing holding part in the resin surface opposing to the rotor cover at the apex of the stator.3. The waterproof axial flow fan according to further comprising an exhaust groove part extended from the collection groove part outwardly in a radial direction of the stator.4. The waterproof axial flow fan according to further comprising an exhaust groove part extended from the collection groove part outwardly in a radial direction of the stator.5. The waterproof axial flow fan according to including a plurality of the exhaust groove parts claim 3 ,wherein the exhaust groove parts are radially extended from the collection groove part outwardly in the radial direction of the stator.6. The waterproof axial flow fan according to including a ...

BLOWER DEVICE

A blower device includes: a fan; a motor rotating the fan; a case supporting the motor; and a heat generating component housed in the case, wherein the case includes: a main body member defining a flow path portion that guides blown air, generated by rotation of the fan, to the heat generating component; and a closing member closing an opening formed on the flow path portion, the main body member includes a fixing portion provided on the flow path portion and fixing the closing member, and the fixing portion is located inside an inner peripheral edge of the opening. 1. A blower device comprising:a fan;a motor rotating the fan;a case supporting the motor; anda heat generating component housed in the case,wherein a main body member defining a flow path portion that guides blown air, generated by rotation of the fan, to the heat generating component; and', 'a closing member closing an opening formed on the flow path portion,, 'the case includesthe main body member includes a fixing portion provided on the flow path portion and fixing the closing member, andthe fixing portion is located inside an inner peripheral edge of the opening.2. The blower device of claim 1 , whereinthe fixing portion has a columnar shape extending toward the opening, andwhen the fixing portion is viewed in a direction in which the fixing portion extends, a longitudinal direction of a shape of the fixing portion is a flowing direction of the blown air in the flow path portion, and a short direction of the shape of the fixing portion is orthogonal to the flowing direction.3. The blower device of claim 2 , wherein the fixing portion includes a tapered portion whose thickness in a direction orthogonal to the flowing direction gradually decreases toward at least one of an upstream side and a downstream side of the flowing direction.4. The blower device of claim 1 , wherein the closing member houses the heat generating component together with the main body member. This application is based upon and ...

Ceiling fan motor adapter assembly

A ceiling fan comprising a motor having a rotating blade hub and a downrod mount. The ceiling fan also has multiple blades mounted to the rotating blade hub. The downrod has an upper end configured to mount to a structure and a lower end with a mount motor. The ceiling fan also has multiple studs provided in one of the downrod mount or the motor mount and corresponding openings provided in the other of the downrod mount or the motor mount. The studs are received within the openings to aid in securing the downrod to the motor assembly.

CEILING FAN BEARING SYSTEM

A ceiling fan assembly including a non-rotating motor shaft with an upper and lower bearing stop, a stator mounted to the non-rotating motor shaft, a rotor surrounding the stator, a motor housing having an upper bearing seat spaced above the upper bearing stop and a lower bearing seat spaced below the lower bearing stop, an upper bearing seated within the upper bearing seat, a lower bearing seated within the lower bearing seat, and a downrod coupling provided on the non-rotating shaft. When the ceiling fan assembly is suspended from a structure with the downrod coupling, the weight of the rotor presses the upper bearing against the upper bearing stop such that the weight of the rotor is transferred through the upper bearing to the non-rotating shaft. 1. A ceiling fan assembly comprising:a non-rotating motor shaft with an upper and lower bearing stop;a stator mounted to the non-rotating motor shaft;a rotor surrounding the stator;a motor housing having an upper bearing seat spaced above the upper bearing stop and a lower bearing seat spaced below the lower bearing stop;an upper bearing seated within the upper bearing seat;a lower bearing seated within the lower bearing seat; anda downrod coupling provided on the non-rotating shaft;wherein when the ceiling fan assembly is suspended from a structure with the downrod coupling, the weight of the rotor presses the upper bearing against the upper bearing stop such that the weight of the rotor is transferred through the upper bearing to the non-rotating shaft.2. The ceiling fan assembly of claim 1 , further comprising a spring located within the lower bearing seat and biasing the lower bearing against the lower bearing stop.3. The ceiling fan assembly of claim 1 , wherein the non-rotating motor shaft is hollow and further comprises a retaining rod passing through the hollow motor shaft.4. The ceiling fan assembly of claim 3 , wherein a lower end of the retaining rod has a cap that abuts a retention plate adjacent to a lower ...

CEILING FAN MOTOR HOUSING WITH WIRING HARNESS

A ceiling fan assembly a motor assembly having a non-rotating, hollow, motor shaft, a stator winding carried by the motor shaft, a wiring harness passing through the hollow of the motor shaft and electrically coupled to the stator winding. 1. A ceiling fan assembly comprising:a motor assembly having a non-rotating, hollow, motor shaft;a stator winding carried by the motor shaft;a wiring harness passing through the hollow of the motor shaft and electrically coupled to the stator winding; and,a hollow down rod mounted to the motor shaft and the wiring harness passing through the hollow of the down rod and the non-rotating shaft.2. The ceiling fan assembly of claim 1 , further comprising a retaining rod passing through the hollow downrod and secured to at least one of the non-rotating motor shaft and the motor assembly.3. The ceiling fan assembly of claim 2 , further comprising a shaft coupler coupled to the non-rotating shaft and a downrod plate coupled to the lower end of the downrod claim 2 , wherein the shaft coupler and downrod plate are secured to each other.4. The ceiling fan assembly of claim 3 , wherein the shaft coupler is located on an upper end of the non-rotating motor shaft.5. The ceiling fan assembly of claim 1 , further comprise a retaining nut threaded onto a tapped portion of the non-rotating motor shaft.6. The ceiling fan assembly of claim 2 , wherein a lower end of the retaining rod has a cap that abuts a lower portion of the non-rotating shaft.7. The ceiling fan assembly of claim 6 , wherein an upper end of the retaining rod is located above an upper end of the non-rotating shaft.8. The ceiling fan assembly of claim 7 , wherein the upper end of the retaining rod terminates in a clevis.9. The ceiling fan assembly of claim 1 , further comprising an exit passage extending from the hollow through an exterior of the motor shaft and the wiring harness passes through the exit passage.10. The ceiling fan assembly of claim 1 , wherein the non-rotating shaft ...

Power supply

A power supply includes a bottom case, a top cover, a circuit board and a heat-dissipating fan. In this case, the bottom case and the top cover are fitted together to delimit an accommodating space. The circuit board is mounted on the bottom case and located within the accommodating space. The circuit board is provided thereon with a plurality of electronic components and a plurality of heat-dissipating elements, each heat-dissipating element being provided correspondingly to one of the electronic components and allowed to conduct heat, respectively. Each of the heat-dissipating elements is provided with a mounting hole. The heat-dissipating fan includes a supporting frame, a driving module provided on the supporting frame, and a fan blade set covering the driving module and being driven by the driving module to rotate. Moreover, the heat-dissipating fan is not provided with a barrier wall around the fan blade set.

Fan

A fan includes an impeller and a metallic base portion. The base portion is arranged to be in thermal contact with a heat source. The impeller includes a resin portion including a plurality of blades, and a metal plate. In addition, the metal plate includes a flat plate portion arranged below the blades. A lower surface of the flat plate portion and an upper surface of the base portion are arranged axially opposite to each other with a gap intervening therebetween. An axial dimension of the gap is arranged to be 200 μm or less at least at a portion of the gap. Heat of the heat source is transferred to the metal plate through radiation from the base portion. Then, an air current produced by the impeller absorbs the heat from the metal plate. The heat generated from the heat source is thus efficiently discharged to an outside.

AXIAL FLOW FAN

A fan includes a motor, an impeller fixed to the motor, and a housing including a cylindrical inner circumferential surface. The impeller includes a plurality of blades extending radially outward. The housing is arranged to surround outer peripheries of the motor and the impeller. The housing includes an intake port which is an upper opening of the housing, an upper edge which surrounds the intake port, an exhaust port which is a lower opening of the housing, a lower edge which surrounds the exhaust port. An axial distance from an upper end of each of the blades to an upper edge is ½ times or more of an axial distance from the upper end of each of the blades to a lower end thereof. This makes it possible to restrain an air flow having a swirling component from passing through the intake port. 1. A fan comprising:a motor that rotates about a center axis extending up and down;an impeller including a plurality of blades extending radially outward, the impeller being fixed to the motor;a housing that surrounds outer peripheries of the motor and the impeller, the housing including a cylindrical inner circumferential surface,a plurality of ribs that interconnect the motor and the housing; anda cover including an outer wall portion disposed radially outward of the housing, whereinthe housing includes an intake port which is an upper opening of the housing, an upper edge which surrounds the intake port, an exhaust port which is a lower opening of the housing, a lower edge which surrounds the exhaust port, and a flow straightening grid disposed in the upper edge,the flow straightening grid is disposed radially inward of the outer wall portion.2. The fan of claim 1 , wherein the housing further includes:', 'an upper flange portion extending radially outward from a body portion of the housing, and', 'a wall portion extending upward from the radial outer}edge of the upper flange portion, andthe flow straightening grid is disposed radially inward of the wall portion.3. The fan ...

Heat dissipation fan

A heat dissipation fan including a housing, a hub, and a plurality of blades is provided. The hub is rotatably disposed in the housing. The blades are disposed at a surrounding edge of the hub to be rotated with the hub. When the heat dissipation fan is operated, at least one flow path is formed by two adjacent blades, and the flow path has a reduction section away from the hub.

Motor and fan motor

A motor includes a rotor rotatable about a center axis that extends vertically, a stator opposing the rotor in a radial direction, and a base portion opposing a lower surface of the stator in an axial direction. The base portion includes a lower lid portion extending in a direction orthogonal or substantially orthogonal to the center axis, a protruding portion protruding in the axial direction from an upper surface at a center of the lower lid portion, and a stator holding portion adjacent to the protruding portion in the axial direction and contactable with an inner circumferential surface of the stator. The protruding portion includes a first ventilation portion opening downward at the center of the lower lid portion and a second ventilation portion to cause the protruding portion to communicate with the first ventilation portion.

FAN

A blower fan includes a lower plate portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more, and a side wall portion made of a material having a thermal conductivity of 1.0 W/(m·K) or more. An upper plate portion arranged to cover an upper side of the impeller includes an air inlet. The upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on the lateral side of the impeller. The blower fan further includes a heat source contact portion with which a heat source is to be in contact, the heat source contact portion being arranged in a surface of the blower fan which faces away from the impeller. The heat source contact portion and the side wall portion are arranged to at least partially overlap with each other in a plan view. 1. A blower fan comprising:an impeller including a plurality of blades arranged to rotate about a central axis extending in a vertical direction and arranged in a circumferential direction, and a blade support portion arranged to support the blades;a motor portion arranged to rotate the impeller; anda housing arranged to contain the impeller; wherein a lower plate portion arranged to cover a lower side of the impeller, arranged to support the motor portion, and made of a material having a thermal conductivity of 1.0 W/(m·K) or more; and', 'a side wall portion arranged to cover a lateral side of the impeller, connected with the lower plate portion, and made of a material having a thermal conductivity of 1.0 W/(m·K) or more;, 'the housing includesa channel joining a space above the impeller and a space between the impeller and the lower plate portion to each other in an axial direction is defined between adjacent ones of the blades of the impeller;an upper plate portion arranged to cover an upper side of the impeller includes an air inlet;the upper plate portion, the side wall portion, and the lower plate portion are arranged to together define an air outlet on ...