Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 3355. Отображено 100.
05-01-2012 дата публикации

Shock absorprion device for motor bearing system

Номер: US20120002908A1
Автор: Shen Zhang, Yingcheng Li
Принадлежит: Zhongshan Broad Ocean Motor Manufacturing Co Ltd

A shock absorption device for a motor bearing system, including a washer, an end cover, a bearing, a rotating shaft, a retaining ring, a cap, and a shock absorption pad. The bearing is disposed in a bearing seat of the end cover. The rotating shaft abuts against the bearing. The washer is disposed on the rotating shaft and on one side of the bearing. The retaining ring is buckled on the rotating shaft and axially positions the washer. The cap is disposed on the periphery of the washer, and on the end cover. The shock absorption pad is disposed on the end cover. The washer is disposed between the shock absorption pad and the retaining ring. The shock absorption pad axially separates the washer from the bearing, and end surface of the bearing seat.

Подробнее
Номер записи: 1
03-05-2012 дата публикации

Spindle motor

Номер: US20120104889A1
Автор: Jin San Kim, Ta Kyoung Lee, Young Tae Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

There is provided a spindle motor including: a sleeve including a hollow part having a shaft inserted thereinto and rotatably supporting the shaft; a thrust plate coupled to a lower portion of the shaft in an axial direction to thereby rotate together with the shaft; a cover plate coupled to a lower portion of the sleeve in the axial direction and covering the hollow part; and a step part stepped upwardly from a lower surface of the thrust plate in the axial direction so that the shaft and the thrust plate are easily coupled to each other and having surface roughness greater than that of other portions of the thrust plate.

Подробнее
Номер записи: 2
21-03-2013 дата публикации

Electric motor

Номер: US20130069463A1
Автор: Christof Frick, Guoxian Wu, Weirong Zhang, Zhendong Mi
Принадлежит: Brose Fahrzeugteile SE and Co KG

An electric motor for moving a vehicle part, the electric motor having a stator with a stator housing, a drive shaft rotatable with respect to the stator, a rotor on the drive shaft and having a rotor winding, a commutator on the drive shaft for supplying an electric current to the rotor winding, at least two brushes mounted on the stator housing, the brushes in sliding contact with the commutator for supplying electric current to the rotor winding, a bushing mounted on the drive shaft adjacent to the commutator, and a cone element mounted on the drive shaft adjacent to the bushing on a side of the bushing facing away from the commutator, the cone element having an outer surface which conforms to the shape of a cone concentrical to the drive shaft and having a tip pointing away from the bushing.

Подробнее
Номер записи: 3
04-04-2013 дата публикации

Spindle motor

Номер: US20130082555A1
Автор: Duck Young Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a spindle motor in which oil sealing parts are surface-treated stepwise with respect to oil used as a fluid dynamic bearing, such that sealing of the oil sealing part is enhanced, thereby preventing scattering, or the like, of the oil. According to preferred embodiments of the present invention, oil contact surfaces are surface-treated stepwise in the direction from the inner side of the oil interface formed in the oil sealing part of a fluid dynamic bearing part toward the outer side thereof, thereby making it possible to enhance maintenance of the oil interface.

Подробнее
Номер записи: 4
25-04-2013 дата публикации

Spindle motor

Номер: US20130099625A1
Автор: Jin San Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a spindle motor including: a shaft forming a rotation center of the motor; a sleeve receiving the shaft therein and rotatably supporting the shaft; a thrust plate protruding in a direction vertical to an axial direction of the shaft and coupled to an upper end portion of the sleeve in the axial direction; and a stopper including a first plate covering an upper end surface of the thrust plate in the axial direction and a second plate bent from one side end of the first plate in a downward axial direction. According to a preferred embodiment of the present invention, a bent stopper is coupled to one side end of a thrust plate of the spindle motor using a fluid dynamic pressure bearing, thereby making it possible to secure a double or more storage space of oil which is an operating fluid.

Подробнее
Номер записи: 5
09-05-2013 дата публикации

Electromagnetic module and spindle motor having the same

Номер: US20130113322A1
Автор: Nam Ki Park, Sang Jae Song
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein are an electromagnetic module for a spindle motor including a shaft and a spindle motor having the same. The electromagnetic module includes: an armature including a core and a coil wound around the core; and a magnet facing the armature, wherein the magnet is provided with a protrusion part disposed over the core. The spindle motor includes: a rotor part including a shaft, a hub, and a magnet; a stator part including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil; and a fluid dynamic bearing part formed between the rotor part and the stator part by being filled with oil, wherein the magnet is provided with a protrusion part disposed over the core.

Подробнее
Номер записи: 6
20-06-2013 дата публикации

Housing of a driving device

Номер: US20130154413A1
Автор: Andreas Schweichart, Peter Klingler
Принадлежит: Brose Fahrzeugteile SE and Co KG

A housing of a driving device, in particular an electric motor adjustment drive for a motor vehicle, has a housing opening, which is covered by a gas-permeable membrane, in particular a membrane that is impermeable to liquid. The housing opening is surrounded by a collar contour, which is interrupted locally at the circumference and within which the membrane lies.

Подробнее
Номер записи: 7
27-06-2013 дата публикации

Spindle motor

Номер: US20130162079A1
Автор: Yeol Choi, Young Sun Yoo, Yun Yeong Park
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a spindle motor. In the spindle motor according to the present invention, a thrust part is disposed at a lower portion of a shaft, and a support part surface-contacting a lower end of the shaft is formed at the thrust part so as to have a round shape, thereby making it possible to easily prevent a wobble phenomenon of a rotor due to a gap in a shaft system. In addition, a guide part is formed to be protruded at the thrust part to lock the shaft including a narrow part formed therein, thereby making it possible to easily prevent floating of the rotor.

Подробнее
Номер записи: 8
17-10-2013 дата публикации

Electric machine and method for operating an electric machine

Номер: US20130270944A1
Автор: Oliver Neumann, Thomas Biessenberger, Viktor Rill
Принадлежит: ROBERT BOSCH GMBH

An electric machine for starting an internal combustion engine, comprising a housing ( 10 ) having at least one sealing device ( 14 ) which seals an interior ( 10 a) of the housing with respect to the surroundings of the housing ( 10 ), and at least one pressure reduction device ( 1 ), wherein the at least one pressure reduction device ( 1 ) is embodied so as to be moveable in a translatory fashion relative to the at least one sealing device ( 14 ) in order to form, in the case of an overpressure in the interior ( 10 a ) of the housing, at least one venting duct via which an at least partial reduction in pressure is ensured.

Подробнее
Номер записи: 9
26-12-2013 дата публикации

Electric motor cooling medium discharge structure and electric motor

Номер: US20130342045A1
Автор: Akira Minamiura, Yasuhiko Matsuki
Принадлежит: KOMATSU LTD

It is an object to decrease an amount of a cooling medium which stays in a housing of an electric motor and is not discharged to the outside when cooling the electric motor by the cooling medium. For this reason, an electric motor includes a first discharge port which is provided in a first flange of a housing so that the cooling medium passes therethrough, a second discharge port which is provided in the first flange so that the cooling medium in the housing passing a bearing passes therethrough, and a discharge passageway which discharges the cooling medium passing the first discharge port and the second discharge port to the outside of the housing.

Подробнее
Номер записи: 10
02-01-2014 дата публикации

Motor structure and flat type vibration motor structure using the same

Номер: US20140001899A1
Автор: Dong Su Moon, Kyung Su Park, Yong Tae Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

Disclosed herein is a motor structure with reduced rotation resistance of a bearing. The motor structure according to the preferred embodiment of the present invention includes: a fixing body, a shaft fixed to the fixing body, a bearing rotatably fitted on the shaft, a rotating body fixed to an outer side of the bearing and rotated by electromagnetic force, a case fixed to the fixing body and having the shaft, the bearing, and the rotating body accommodated in an inner space thereof, and a washer fixed to a top inside of the case so as to be interposed between the top inside of the case and a top surface of the bearing and contacting a part of the top area of the bearing.

Подробнее
Номер записи: 11
13-03-2014 дата публикации

Electric motor and manufacturing method of electric motor

Номер: US20140070662A1
Автор: Hiroshi SHIRASAKA
Принадлежит: Kitashiba Electric Co Ltd

There is provided an electric motor and a manufacturing method of the electric motor capable of joining a brush and a commutator without placing load on components. An electric motor is formed at a side of a brush holder 13 with a second notch unit 32 , and a groove unit 36 is formed on a brush 12 so that it overlaps the second notch unit 32 in the position where the brush 12 stored in the brush holder 13 does not abut against a commutator 8 . By doing so, when joining the brush 12 and the commutator 8 , the brush 12 may be temporarily fixed with respect to the brush holder 13 by pushing in the brush 12 in the brush holder 13 and coinciding the second notch unit 32 and the groove unit 36 , and fixing a jig and the like to the groove unit 36 in this state.

Подробнее
Номер записи: 12
13-03-2014 дата публикации

Axial bearing for an electric drive

Номер: US20140072459A1
Автор: Michal Kalavsky
Принадлежит: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

The invention relates to an axial bearing for retaining a rotor on a shaft of an electric drive. The axial bearing has a multi-sided outer contour.

Подробнее
Номер записи: 13
03-01-2019 дата публикации

FLUSH WATER TANK APPARATUS

Номер: US20190006906A1
Автор: MATSUSAKI Takashi, TAKETANI Tomoyoshi, TANIMOTO Hideki
Принадлежит:

Problem: To provide a flush water tank apparatus capable of stable operational control of a discharge valve apparatus, and stable flush water supply to a toilet for long term. 1. A flush water tank apparatus storing flush water for flush a toilet , comprising:a flush water tank having a discharge opening;a discharge valve mechanism having a discharge valve configured to open and close the discharge opening by an operation of the discharge valve;a power drive unit mounted so as to be concealed in an interior of the flush water tank, and capable of electrically operating the discharge valve of the discharge valve mechanism, wherein the power drive unit comprises a motor rotationally driven by electricity and an output shaft for outputting rotation of the motor; and a housing portion formed so as to surround an outlet of a drive unit interior air passage extending from the motor of the power drive unit inside the flush water tank;wherein the housing portion is opened toward an outside of the flush water tank, and an air passage is formed to communicate from the motor of the power drive unit through the housing portion to the exterior of the flush water tank.2. The flush water tank of claim 1 , wherein the power drive unit further comprises a casing in which the motor and the output shaft are disposed;and wherein an output shaft-side end portion passing through the output shaft and forming an air-sealing structure and an air passage outlet portion in which the outlet of the air passage extending from the motor is formed, and the air passage outlet portion is housed inside the housing portion.3. The flush water tank apparatus of claim 1 , further comprising an overflow pipe for discharging flush water exceeding full water level in the flush water tank from the discharge opening claim 1 , and the housing portion is disposed above the top end of the overflow pipe.4. The flush water tank apparatus of claim 1 , wherein the housing portion is formed to surround the perimeter ...

Подробнее
Номер записи: 14
12-01-2017 дата публикации

IMotor with Heat Dissipation Structure

Номер: US20170012499A1
Автор: Wen-San Chou
Принадлежит: Individual

A motor includes a housing, a front cover, a rotating shaft, and a cooling fan. The front cover is provided with multiple air guiding fins and defines multiple inlet holes. The housing defines at least one communication hole at its surrounding wall. In use, a central portion of the air current generated by the cooling fan can be guided by the air guiding fins to pass through the inlet holes to enter the motor's housing. An outer portion of the air current can flow along the outer surface of the housing. The way of dissipating heat through multiple paths allows the heat generated in the motor to be dissipated more effectively, so that heat is not easy to accumulate in the motor, and thus the performance and service life of the motor can be increased.

Подробнее
Номер записи: 15
03-02-2022 дата публикации

RADIAL VENTILATOR

Номер: US20220034328A1
Автор: Ehlers Volker, HELLMANN Marcus
Принадлежит:

A radial ventilator () has a base part (), a housing part (), with a discharge , placed on the base part (), a motor electronics unit (), and an internal rotor electric motor. The motor drives a ventilator wheel () via a shaft (). The motor electronics unit () and a stator () of the electric motor are encapsulated by an extrusion coating () in the base part () and together form an integral one-piece structural unit. The radial ventilator () has a pressure chamber (D) enlarging in a spiral shape around the ventilator wheel (). The pressure chamber (D) is formed and defined by the housing part () and the extrusion coating (). 116.-. (canceled)17. A radial ventilator comprising: a base part , a housing part placed on the base part , a motor electronics unit , and an internal rotor electric motor;a ventilator wheel drive via a shaft of the electric motor;the motor electronics unit and a stator of the electric motor are encapsulated by an extrusion coating in the base part and together form an integral one-piece structural unit; the radial ventilator has a pressure chamber expanding in a spiral shape around the ventilator wheel, the pressure chamber is formed and defined by the housing part and the extrusion coating.18. The radial ventilator as claimed in claim 17 , wherein the extrusion coating comprises a protruding ring section extending in the axial direction claim 17 , the axial end face of the ring section defines the pressure chamber and the ring section defines a receptacle chamber for the motor electronics unit.19. The radial ventilator as claimed in claim 17 , wherein the spiral-shaped pressure chamber is formed by an axial and radial expansion.20. The radial ventilator as claimed in claim 17 , wherein the housing part has a constant diameter delimiting the pressure chamber and a spiral shape of the pressure chamber is exclusively defined by the extrusion coating.21. The radial ventilator as claimed in claim 17 , wherein the electric motor is arranged on a ...

Подробнее
Номер записи: 16
16-01-2020 дата публикации

LENS MOVING APPARATUS AND CAMERA MODULE INCLUDING SAME

Номер: US20200021181A1
Автор: LEE Jun Taek, LEE Seong Min, LEE Sung Guk, PARK Sang Ok, SON Byung Wook, YOO Kyoung Ho
Принадлежит:

A lens moving apparatus, according to one embodiment, comprises: a bobbin having a first coil installed on the outer circumferential surface thereof; a location detection sensor equipped to the bobbin; a housing in which the bobbin is provided; an upper elastic member disposed on the upper side of the housing; and a support member that supports the housing such that the housing can move in a second or third direction that is perpendicular to a first direction, wherein the upper elastic member is divided into a plurality of parts, at least two of which are disposed parallel to each other on the x-y plane in the second or third direction and are disposed such that end portions thereof face each other. 1. A lens moving apparatus comprising:a housing;a bobbin disposed in the housing;a first coil disposed on the bobbin;a magnet disposed on the housing;an upper elastic member coupled to an upper portion of the bobbin and an upper portion of the housing;a circuit member disposed under the housing and comprising a second coil opposite to the magnet in a first direction that is parallel with an optical axis direction;a printed circuit board disposed under the circuit member;a base disposed under the printed circuit board; anda support member connecting the upper elastic member to the printed circuit board or the circuit member,wherein the upper elastic member comprises a plurality of elastic members,wherein at least two of the plurality of elastic members are disposed in parallel with each other in an x-y plane in a second direction perpendicular to the first direction or in a third direction perpendicular to the first and second directions, andwherein the at least two of the plurality of elastic members form symmetry with respect to a center of the bobbin in the x-y plane.2. The lens moving apparatus according to claim 1 , wherein the at least two of the plurality of elastic members overlap each other when the at least two of the plurality of elastic members are rotated 180 ...

Подробнее
Номер записи: 17
24-01-2019 дата публикации

Motor with shaft movable in limited manner, and machine tool

Номер: US20190022810A1
Автор: Yasuyuki Nakazawa
Принадлежит: FANUC Corp

A motor able to prevent axial displacement of a rotor in a simple structure without increasing the number of parts of the motor. The motor includes a rotor including a shaft, a housing configured to support the shaft rotatably and movably in a limited manner in an axial direction, a flange disposed on an axially outside of the housing and configured to rotate integrally with the shaft, the flange projecting radially outward from the shaft and being configured to prevent a foreign object from entering the housing, and a temporary tacking structure provided in at least one of the flange and the housing, and configured to temporarily tack the housing and the flange to each other in the axial direction.

Подробнее
Номер записи: 18
25-01-2018 дата публикации

Lens moving apparatus and camera module including same

Номер: US20180026515A1
Автор: Byung Wook SON, Jun Taek Lee, Kyoung Ho YOO, Sang Ok Park, Seong Min Lee, Sung Guk Lee
Принадлежит: LG Innotek Co Ltd

A lens moving apparatus, according to one embodiment, comprises: a bobbin having a first coil installed on the outer circumferential surface thereof; a location detection sensor equipped to the bobbin; a housing in which the bobbin is provided; an upper elastic member disposed on the upper side of the housing; and a support member that supports the housing such that the housing can move in a second or third direction that is perpendicular to a first direction, wherein the upper elastic member is divided into a plurality of parts, at least two of which are disposed parallel to each other on the x-y plane in the second or third direction and are disposed such that end portions thereof face each other.

Подробнее
Номер записи: 19
28-01-2021 дата публикации

Single-transport mobile electric power generation

Номер: US20210025324A1
Автор: Brett VANN, Jeffrey Morris, Matthew CRAWFORD
Принадлежит: Typhon Technology Solutions LLC

A power generation transport includes a gas turbine, an inlet plenum coupled to an intake of the gas turbine, a generator driven by the gas turbine, and an air intake and exhaust module including an air inlet filter housing, an intake air duct coupled to the housing at a first end and to the inlet plenum at a second end, and an exhaust collector coupled to an exhaust of the gas turbine. The transport further includes at least one base frame. The frame mounts and aligns the gas turbine, the inlet plenum, the generator, and the air intake and exhaust module. The intake air duct is mounted on the base frame so as to be disposed underneath the gas turbine, and extend along the base frame from an exhaust end side of the gas turbine to an intake end side, in a longitudinal direction of the power generation transport.

Подробнее
Номер записи: 20
10-02-2022 дата публикации

Motor and exhaust method for motor cavity

Номер: US20220045572A1
Автор: Chang Shu
Принадлежит: Individual

The present invention provides a motor, comprising: a housing; a motor stator located in the housing; a motor output shaft located in the housing; and an exhaust device connected to the housing and configured to exhaust air from the interior of the housing. According to an implementation mode of the present invention, a turbine device is mounted on the motor output shaft; when the motor rotates, an inner cavity of the motor is evacuated to be in a negative pressure state; the higher the motor speed, the lower the air pressure inside the motor, the higher the vacuum degree, and the smaller the frictional resistance between a rotor and the air, so that the motor speed can be effectively increased and a rotor having a relatively large diameter can be used, thereby enhancing the low speed torque while increasing the power density of the motor and facilitating the design of a high power motor.

Подробнее
Номер записи: 21
23-01-2020 дата публикации

Motor

Номер: US20200028395A1
Автор: Takenori Hashimoto
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A cooling structure is provided that cools a rotor in a motor. The motor includes a shaft that is rotatably supported on a case and a rotor having a rotor core to which a plurality of magnets are provided on an outer periphery of the shaft and which is disposed to face a stator. Flow passages are formed on the shaft and the rotor and cooling oil passes through a core flow passage inside the rotor core from an introduction flow passage on a first side in an axial direction of the shaft and flows to the introduction flow passage on a second side in the axial direction of the shaft. An inlet communicating with the introduction flow passage and an outlet communicating with the introduction flow passage are formed in the case.

Подробнее
Номер записи: 22
23-01-2020 дата публикации

ELECTRICAL MACHINE AND ROTOR FOR AN ELECTRICAL MACHINE

Номер: US20200028402A1
Автор: Blaser Manuel, Hertig Konrad, Looser Andreas
Принадлежит:

An electrical machine includes a stator with a stator body supporting an electrical stator and a rotor. The rotor is supported by a bearing having a radial bearing section forming a radial gas bearing and an axial bearing section forming an axial gas bearing, the stator side parts of these bearing sections being a stator side radial bearing part and a stator side axial bearing part that are rigidly connected to one another and together form a stator bearing structure. The stator bearing structure is mounted to the other parts of the stator by either the stator side radial or axial bearing part being rigidly mounted to these other parts, and the other bearing part are connected to these other parts by an elastic support or not at all. 139-. (canceled)40. An electrical machine comprising a stator with a stator body supporting an electrical stator and a rotor , the rotor being supported by means of a bearing comprising a radial bearing section forming a radial gas bearing and an axial bearing section forming an axial gas bearing , the stator side parts of these bearing sections being a stator side radial bearing part and a stator side axial bearing part which are rigidly connected to one another and together form a stator bearing structure , characterised in thatthe stator bearing structure is mounted to the other parts of the stator byeither the stator side radial bearing part being rigidly mounted to these other parts, and the stator side axial bearing part being connected to these other parts by an elastic support or not at all;or the stator side axial bearing part being rigidly mounted to these other parts, and the stator side radial bearing part being connected to these other parts by an elastic support or not at all.41. The electrical machine of claim 40 , wherein the stator bearing structure is attached near one end to the stator body in a fixed manner claim 40 , in particular wherein the stator side axial bearing part is an axial bearing assembly which is ...

Подробнее
Номер записи: 23
05-02-2015 дата публикации

MOTOR APPARATUS INCLUDING MOTOR FIXED TO HOUSING BY FLANGE BEING PROTRUDED IN MOTOR AXIAL DIRECTION

Номер: US20150035400A1
Автор: KOYAMA Fumitoshi
Принадлежит:

The motor apparatus includes a motor and a housing to which the motor is fixed. The motor includes a yoke having a bottomed-cylindrical shape, a flange being protruded from the opening end of the yoke towards an anti-bottom end side of the yoke. The housing includes a yoke-mounted surface, to which the opening end of the yoke comes into contact and a flange-mounted surface, to which the flange comes into contact. Further, the motor apparatus includes a rigid coupling portion that rigidly couples the housing to the motor and prevents the housing and the motor from relatively moving in the axial direction. 1. A motor apparatus comprising:a housing;a motor fixed to the housing, the motor having a rotational shaft extended in an axial direction thereof;a yoke included in the motor, having a bottomed-cylindrical shape, the yoke including an opening end section and a bottom end section;a flange included in the motor, the flange being protruded from the opening end section towards an anti-bottom end section side which is opposite side of the bottom end section in the axial direction;a yoke-mounted surface included in the housing, to which the opening end section of the yoke comes into contact;a flange-mounted surface included in the housing, to which the flange comes into contact; anda rigid coupling portion that rigidly couples the housing to the motor and prevents the housing and the motor from relatively moving in the axial direction.2. The motor apparatus according claim 1 , whereinthe rigid coupling portion includes:a screw being screwed to the housing to have the flange press-contacted with the flange-mounted surface; anda projection formed on at least either of the flange and the flange-mounted surface, biting into the flange or the flange-mounted surface.3. The motor apparatus according to claim 1 , whereinthe rigid coupling portion includes:a rivet being put into the housing to have the flange press-contacted with the flange-mounted surface; anda projection formed ...

Подробнее
Номер записи: 24
04-02-2021 дата публикации

MOTOR AND BEARING COOLING PATHS

Номер: US20210033111A1
Автор: Beck John M., Beers Craig M., Merritt Brent J.
Принадлежит:

A compressor includes a rotor configured to compress air and driven by a shaft. A motor is drives the shaft. The first and second journal bearings facilitate rotation of the shaft. The first journal bearing is upstream from the motor and the second journal bearing is downstream from the motor. The transfer tube is configured to provide cooling air from a bearing cooling air inlet to the first journal bearing. A method for cooling a compressor is also disclosed. 1. A compressor comprising:a rotor driven by a shaft and configured to compress air;a motor for driving the shaft;first and second journal bearings for facilitating rotation of the shaft, wherein the first journal bearing is upstream from the motor and the second journal bearing is downstream from the motor; anda transfer tube, the transfer tube configured to provide cooling air from a bearing cooling air inlet to the first journal bearing.2. The compressor of claim 1 , wherein the cooling air travels in the same direction through the first journal bearing as a direction of airflow through the compressor.3. The compressor of claim 1 , further comprising a thrust bearing configured to facilitate rotation of the shaft claim 1 , the thrust bearing arranged downstream from the second journal bearing claim 1 , and wherein the bearing cooling air inlet is in fluid communication with the thrust bearing.4. The compressor of claim 3 , wherein the thrust bearing includes a thrust shaft and a thrust plate claim 3 , the thrust shaft including first and second orifices claim 3 , wherein the first and second orifices are in fluid communication with the bearing cooling air inlet.5. The compressor of claim 4 , wherein the second journal bearing is in fluid communication with the second orifice and wherein the thrust bearing is in fluid communication with the first orifice.6. The compressor of claim 4 , further comprising a passage between the motor and the shaft claim 4 , wherein the passage is in fluid communication with ...

Подробнее
Номер записи: 25
31-01-2019 дата публикации

BEARING ASSEMBLY OF A MOTOR SHAFT OF AN ELECTRIC MOTOR

Номер: US20190036394A1
Автор: BIELESCH Thomas, SAMMET Jochen
Принадлежит: MAHLE International GmbH

A bearing assembly for a motor shaft of an electric motor having a stator. The stator is formed by a stator core having a plurality of stator laminations, which are stacked one on the other. The stator core has a first outer partial stator core, a second outer partial stator core, and a central partial stator core. The central partial stator core is arranged between the two outer partial stator cores. A continuous opening is arranged in each of the partial stator cores, in which openings bearings for supporting the motor shaft are arranged and the motor shaft is arranged. A diameter of the opening of the central partial stator core is smaller than a diameter of the opening of the outer partial stator cores such that a diameter transition from the central partial stator core to an outer partial stator core forms an axial stop for a bearing. 1. A bearing assembly for a motor shaft of an electric motor , the bearing assembly comprising:a stator formed from a stator core made up of a plurality of stator elements that are stacked one on top of the other, the stator core having a first outer partial stator core and a second outer partial stator core and a central partial stator core, the central partial stator core being disposed between the two outer partial stator cores; anda continuous opening disposed in the partial stator cores, in which bearings for supporting the motor shaft and in which the motor shaft are accommodated,wherein a diameter of the opening of the central partial stator core is smaller than a diameter of the opening of each of the outer partial stator cores so that a diameter transition from the central partial stator core to an outer partial stator core forms an axial stop for a bearing, the bearing being disposed in each case in a particular opening of a particular outer partial stator core.2. The bearing assembly according to claim 1 , wherein the first outer partial stator core claim 1 , the central partial stator core claim 1 , and the second ...

Подробнее
Номер записи: 26
31-01-2019 дата публикации

ELECTRIC MOTOR ASSEMBLY FOR RAILWAY DRIVE

Номер: US20190036417A1
Автор: MAIELLO Ciro, PORZIO Mario, SINATTI Simone
Принадлежит:

An electric motor assembly for railway drive. The motor assembly comprises: 1100. An electric motor assembly () for railway drive;{'b': '100', 'claim-text': [{'b': '10', 'electric drive means ();'}, {'b': 20', '10', '20', '16', '10, 'ventilation and cooling means () for ventilating and cooling said electric drive means () through cooling air; said ventilation and cooling means () being fitted onto the shaft () of said electric drive means (); and'}, {'b': 30', '10', '30', '70, 'draining means () for draining the ventilation and cooling air flow used to ventilate and cool said electric drive means (); said draining means () being provided with silencer means () for the cooling air flow;'}], 'the motor assembly () comprising{'b': 70', '39', '30, 'the motor assembly being characterized in that said silencer means () comprise at least one straight channel (D) to reduce the turbulent flow into a substantially laminar flow of the ventilation and cooling air flowing out of said draining means ();'}{'b': 30', '300', '21', '39', '39', '39', '39', '39', '300', '39, 'and in that said draining means () comprise, furthermore, a scroll (), surrounding ventilation means (), which comprises two separate arched channels (A, B); said arched channels (A, B) communicating with one another, from the fluidic point of view, only in a common outlet area (C) for the ventilation and cooling air; said scroll () and said at least one straight channel (D) being placed in series with respect to each other.'}2100239110. Motor assembly () claim 1 , according to claim 1 , characterized in that the longitudinal axis (X) of said straight channel (D) is parallel to the longitudinal axis (X) of said electric drive means ().310039. Motor assembly () claim 1 , according to claim 1 , characterized in that said straight channel (D) has a square or rectangular cross section.4100300301323334353637. Motor assembly () claim 1 , according to claim 1 , characterized in that said scroll () comprises an inner ...

Подробнее
Номер записи: 27
04-02-2021 дата публикации

PROPULSOR SYSTEM WITH INTEGRATED PASSIVE COOLING

Номер: US20210036580A1
Автор: Cottrell Daniel B.
Принадлежит:

Propulsors (e.g., an electric motor mechanically coupled to a rotor) are described that passively cool the electric motors via an airflow path through the electric motor and out of the rotors. One embodiment comprises a method of cooling an electric motor. The method comprises operating the electric motor of a propulsor for an aircraft to rotate a rotor of the propulsor, where the rotor has one or more air outlets, and where the electric motor has a housing that includes one or more air inlets in fluid communication with the one or more air inlets. The method further comprises generating, by rotating the rotor using the electric motor, an airflow through the electric motor from the one or more air inlets to the one or more air outlets to cool the electric motor. 1. A method of cooling an electric motor , comprising:operating the electric motor of a propulsor to rotate a rotor of the propulsor, the rotor having one or more air outlets, the electric motor having a housing that includes one or more air inlets in fluid communication with the one or more air outlets; andgenerating, by rotating the rotor using the electric motor, an airflow through the electric motor from the one or more air inlets to the one or more air outlets to cool the electric motor.2. The method of claim 1 , wherein generating the airflow further comprises:generating, by rotating the rotor using the electric motor, the airflow based on a differential pressure between the one or more air inlets and the one or more air outlets.3. The method of claim 1 , wherein generating the airflow further comprises:generating, by rotating the rotor using the electric motor, the airflow based on a centrifugal force generated proximate to the one or more air outlets.4. The method of claim 1 , wherein generating the airflow further comprises:generating, by rotating the rotor using the electric motor, the airflow based on a downwash from the rotor.5. The method of claim 4 , wherein:the one or more air inlets are ...

Подробнее
Номер записи: 28
24-02-2022 дата публикации

Axial anti-backlash stepper/servo motor

Номер: US20220060079A1
Автор: Jonathan R. Schroeder, Keith Cummings, Kent Proffitt, Kollin Proffitt, Robert Schroeder, Timothy Joseph LeCrone
Принадлежит: Pacific Bearing Co

A motor is provided. The motor includes a motor body and a rotor assembly. The rotor assembly includes a magnetic core mounted to a rotor shaft. The rotor assembly may include standoffs for accurately axially locating the magnetic core relative to rotor bearings. A drive nut adjustment arrangement may be provided. A mechanical interconnection between the drive nut and rotor shaft may be provided. A trailing end lead screw support may be provided. An axial preload arrangement may be provided to axially locate the rotor assembly within the motor body.

Подробнее
Номер записи: 29
07-02-2019 дата публикации

ELECTRIC ACTUATOR

Номер: US20190044409A1
Автор: IKEDA Yoshinori, MATSUTO Takushi, NAITOU Yuuki
Принадлежит:

Provided is an electric actuator (), including: a motor part (A); and a motion conversion mechanism part (B). The motion conversion mechanism part (B) includes: a ball screw shaft (); and a ball screw nut (), which is rotatably fitted to an outer periphery of the ball screw shaft (), and is provided so as to be capable of transmitting torque with a rotor () of the motor part (A) rotatably supported through intermediation of a rolling bearing (). The ball screw shaft () advances toward one side in the axial direction or retreats toward another side in the axial direction in accordance with a rotation direction of the ball screw nut (). In the electric actuator (), a needle roller bearing () serving as a thrust bearing is arranged adjacent to the ball screw nut () on the another side in the axial direction. 1. An electric actuator , comprising:a motor part configured to drive upon receiving supply of power; anda motion conversion mechanism part configured to convert a rotary motion of the motor part into a linear motion to output the motion, a ball screw shaft arranged coaxially with a rotation center of the motor part; and', 'a ball screw nut, which is rotatably fitted to an outer periphery of the ball screw shaft through intermediation of a plurality of balls, and is provided so as to be capable of transmitting torque with a rotor of the motor part rotatably supported through intermediation of a rolling bearing,, 'wherein the motion conversion mechanism part compriseswherein the ball screw shaft advances toward one side in the axial direction or retreats toward another side in the axial direction in accordance with a rotation direction of the ball screw nut, andwherein a thrust bearing is arranged adjacent to the ball screw nut on the another side in the axial direction.2. The electric actuator according to claim 1 ,wherein the rolling bearing comprises two rolling bearings arranged at two locations apart from each other in the axial direction, andwherein the thrust ...

Подробнее
Номер записи: 30
18-02-2016 дата публикации

Electric machine, moisture guide and associated method

Номер: US20160049842A1
Автор: Mark Lyon Klopp, Michael Allen Marks, Zachary Joseph Stauffer
Принадлежит: Regal Beloit America Inc

According to an embodiment of the invention, an electric machine for use in an environment having moisture is provided. The machine includes a housing that has an inner surface defining a cavity in the housing. The housing defines a leak path exit adapted to remove moisture accumulating within the housing away from the housing. The electric machine further includes a stator secured to the housing and a rotor that is rotatably secured to the housing, The electric machine further includes a moisture guide positioned at least partially within the cavity and adapted to guide at least some of the moisture toward the leak path exit.

Подробнее
Номер записи: 31
06-02-2020 дата публикации

Lubricant supported electric motor with bearing support

Номер: US20200044511A1
Автор: Donald Remboski, Jacqueline Dedo, Mark Versteyhe
Принадлежит: Neapco Intellectual Property Holdings LLC

An electric motor includes a stator and a rotor movably disposed within the stator to define a gap therebetween. A central shaft extends outwardly from the rotor, and a bearing element is disposed in supporting relationship with the central shaft for providing bearing support of the rotor within the stator. A lubricant is disposed in the gap for providing additional or auxiliary lubricant support of the rotor within the stator. In an alternative arrangement, the central shaft is operably connected with a drive assembly, which is operably connected with a wheel hub assembly. In this arrangement, the bearing element is disposed in supporting relationship with the wheel hub assembly. In either arrangement, the wheel end electric motor includes both lubricant support as well as bearing support for optimizing performance of the electric motor in shock load environments.

Подробнее
Номер записи: 32
06-02-2020 дата публикации

Electric Machine Arc Path Protection

Номер: US20200044518A1
Автор: KROGER Christopher James, Miller Brandon Wayne, Niergarth Daniel Alan, Stevenson Christian Xavier
Принадлежит:

In one an exemplary aspect of the present disclosure, an engine includes a drive shaft; an electric machine including a stator assembly and a rotor assembly, the rotor assembly rotatable relative to the stator assembly; and an electrical break, the drive shaft coupled to the rotor assembly through the electrical break. 1. An engine comprising:a drive shaft;an electric machine comprising a stator assembly and a rotor assembly, the rotor assembly rotatable relative to the stator assembly; andan electrical break, the drive shaft coupled to the rotor assembly through the electrical break.2. The engine of claim 1 , wherein the electrical break is configured to transfer substantially all of a torque between the drive shaft and the rotor assembly of the electric machine.3. The engine of claim 1 , wherein the engine is a turbine engine comprising a compressor and a turbine claim 1 , wherein the drive shaft is coupled to at least one of the compressor or the turbine of the turbine engine.4. The engine of claim 3 , wherein the turbine engine is at least one of a turbofan engine claim 3 , a turboshaft engine claim 3 , a turbojet engine claim 3 , or a turboprop engine.5. The engine of claim 3 , wherein the turbine engine is an auxiliary power unit.6. The engine of claim 3 , wherein the turbine engine defines a core air flowpath claim 3 , and wherein the electric machine is positioned inward of at least a portion of the core air flowpath along a radial direction.7. The engine of claim 1 , wherein the engine is an aeronautical fan engine claim 1 , wherein the aeronautical fan engine comprises a fan having a plurality of fan blades claim 1 , and wherein the drive shaft is coupled to the plurality of fan blades for driving the plurality of fan blades.8. The engine of claim 1 , wherein the electrical break is formed substantially completely of a non-electrically conductive material.9. The engine of claim 8 , wherein the non-electrically conductive material has an electrical ...

Подробнее
Номер записи: 33
03-03-2022 дата публикации

Forced air cooling from piston movements of nailer tool

Номер: US20220063075A1
Автор: Alexander L. Carrier, Christopher D. KLEIN
Принадлежит: Kyocera Senco Industrial Tools Inc

A fastener driving tool that forces air from its variable venting volume beneath the piston of the working cylinder and directs that forced air through passageways and toward an electronic controller and/or an electric motor before being vented to atmosphere, thereby drawing heat away from those components during an operational cycle of the movable piston. When the piston returns to its initial position, environmental air is drawn through the same passageways, again past the electronic controller and/or electric motor, thereby twice cooling these “hot” components during a single operational cycle.

Подробнее
Номер записи: 34
13-02-2020 дата публикации

Machine with a system for axial blocking of the shaft

Номер: US20200049201A1
Автор: Pascal Beynaud, Pascal Gauthier
Принадлежит: Moteurs Leroy Somer SA

A machine including at least one bearing mount; at least one bearing carried by the bearing mount, the bearing comprising inner and outer races and rolling elements between the races; a shaft engaged in the bearing, axially blocked relative to the inner race; a pushrod cover arranged on one side of the bearing, having a surface opposite the bearing and having, on its radially outer edge, a bead of material in contact with the outer race; at least one push element movable transversely to the axis of rotation (X) of the shaft in order to exert a pressure on said surface of the push rod cover in order to press it against the outer race and axially block said outer race.

Подробнее
Номер записи: 35
03-03-2022 дата публикации

Motor

Номер: US20220069664A1
Автор: Changhum Jo, Jongsu Kim, Jungwook MOON, Minjung Kim, Taehee Kwak
Принадлежит: LG Magna E Powertrain Co Ltd

The present invention relates to a motor comprising: a motor housing; a stator which is provided in the motor housing and has a coil; a rotor installed in the stator to be rotatable about a rotary shaft; and a spray hole which is formed in the circumferential surface of the rotor by passing through the circumferential surface in a radial direction and which sprays a cooling fluid in the motor housing onto the coil according to the rotation of the rotor. Therefore, cooling by oil convection can be accelerated while minimizing resistance due to the oil.

Подробнее
Номер записи: 36
14-02-2019 дата публикации

Rotor assembly and motor including the same

Номер: US20190052138A1
Автор: Tomoya UEDA, Yusuke Makino
Принадлежит: Nidec Corp

A rotor assembly includes a shaft with a central axis extending along an up and down direction as a center, and a cylindrical rotor main body fixed to an outer surface of the shaft, and the rotor main body includes core pieces arranged around the shaft in a circumferential direction, rotor magnets alternately arranged with the core pieces around the shaft in the circumferential direction, and a connection portion made of resin and connecting the shaft to the core pieces and the rotor magnets. Each of the rotor magnets includes an engagement region covered by the connection portion of the rotor magnet surface, and an exposed region including an outer surface positioned outward of the rotor magnet surface in a radial direction and is exposed from the connection portion.

Подробнее
Номер записи: 37
14-02-2019 дата публикации

Motor

Номер: US20190052150A1
Автор: Satoshi Kajikawa, Yusuke Makino
Принадлежит: Nidec Corp

A motor includes a shaft with a central axis along an up and down direction as a center, a bearing mechanism rotatably supporting the shaft; a cylindrical rotor main body fixed to the shaft; a rotor fan fixed to the shaft at an upper side of the rotor main body; an armature facing the rotor main body in a radial direction; and a housing accommodating the rotor main body, the rotor fan, and the armature therein. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in the up and down direction and a second bearing positioned below the rotor main body. The housing includes a first opening, a second opening, and a bearing holding portion.

Подробнее
Номер записи: 38
14-02-2019 дата публикации

Motor

Номер: US20190052152A1
Автор: Satoshi Kajikawa, Yusuke Makino
Принадлежит: Nidec Corp

A motor includes a shaft, a bearing mechanism rotatably supporting the shaft, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft, an armature, and a housing. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in an up and down direction. The housing includes a first opening, a second opening, and a bearing holding portion. A cylindrical wind tunnel portion is outward of the rotor fan in a radial direction. An inner surface of the wind tunnel portion and the rotor fan face each other in the radial direction. An upper end portion of the inner surface of the wind tunnel portion and an outer surface of the bearing holding portion face each other in the radial direction.

Подробнее
Номер записи: 39
25-02-2021 дата публикации

BREATHING DEVICE AND ELECTRIC POWER STEERING DEVICE

Номер: US20210057958A1
Автор: ASAO Yoshihito, UDO Toyoaki
Принадлежит: Mitsubishi Electric Corporation

A breathing device includes a ventilator, which is arranged on an end surface of the control unit provided with a connector on an opposite side of an output shaft of a rotating machine so as to protrude from an inside of the electric power steering device toward an outside of the electric power steering device, and is configured to provide a breathing action through ventilation between the inside and the outside. The ventilator protrudes in a horizontal direction or upward with respect to the horizontal direction. 1. A breathing device , comprising a ventilator , which is provided to an electric power steering device , and is arranged so as to protrude from an inside of the electric power steering device to an outside of the electric power steering device , the ventilator being configured to provide a breathing action through ventilation between the inside and the outside , the electric power steering device being mounted to a vehicle and including a rotating machine and a controller configured to drive the rotating machine , which are integrated with each other so as to have waterproof structure ,wherein the ventilator protrudes in a horizontal direction or upward with respect to the horizontal direction.2. The breathing device according to claim 1 , wherein the ventilator is arranged on an end surface of the controller provided with a connector on a side opposite to an output shaft of the rotating machine.3. The breathing device according to claim 1 , wherein the ventilator is arranged on a side surface of a case of the controller.4. The breathing device according to claim 1 , wherein the ventilator is arranged on an end surface of a housing of the rotating machine.5. The breathing device according to claim 1 , wherein the ventilator is formed of a gap defined between a terminal and a connector housing in a connector provided on an end surface of the controller on a side opposite to an output shaft of the rotating machine.6. The breathing device according to claim ...

Подробнее
Номер записи: 40
21-02-2019 дата публикации

OIL-IMPREGNATED SINTERED BEARING AND METHOD FOR MANUFACTURING SAME

Номер: US20190055986A1
Автор: ITO Yoshinori, KOMATSUBARA Shinji, UCHIYAMA Tadahiro
Принадлежит: NTN CORPORATION

An oil-impregnated sintered bearing () includes a copper-iron-based sintered compact containing 40 mass % or more of copper, and has inner pores impregnated with an oil. The sintered compact has: a copper structure derived from copper powder () of partially diffusion-alloyed powder () in which copper powder () having a particle diameter of 20 μm or less is diffused on and joined to a surface of iron powder () in advance; and a copper structure derived from elemental copper powder (). 1. An oil-impregnated sintered bearing , comprising a copper-iron-based sintered compact containing 40 mass % or more of copper ,wherein the sintered compact has: a copper structure derived from copper powder of partially diffusion-alloyed powder in which copper powder having a particle diameter of 20 μm or less is diffused on and joined to a surface of iron powder in advance; and a copper structure derived from elemental copper powder.2. The oil-impregnated sintered bearing according to claim 1 , wherein the sintered compact contains 35 mass % or more of the copper structure derived from elemental copper powder.3. The oil-impregnated sintered bearing according to claim 1 , wherein the elemental copper powder has a particle diameter of 63 μm or less.4. The oil-impregnated sintered bearing according to claim 1 , wherein the elemental copper powder comprises electrolytic copper powder.5. The oil-impregnated sintered bearing according to claim 1 , wherein the sintered compact comprises a dynamic pressure generating portion on an inner peripheral surface thereof.6. The oil-impregnated sintered bearing according to claim 1 , wherein the sintered compact comprises a dynamic pressure generating portion on an end surface thereof.7. A fluid dynamic bearing device claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the oil-impregnated sintered bearing of ;'}a shaft member inserted along an inner periphery of the oil-impregnated sintered bearing; anda radial bearing portion ...

Подробнее
Номер записи: 41
21-02-2019 дата публикации

SYSTEMS AND METHODS FOR AXIAL IMPACT RESISTANCE IN ELECTRIC MOTORS

Номер: US20190058370A1
Автор: Tinney Evan Charles
Принадлежит:

A system for providing torque includes a stator, a rotor, an axle, an endcap, an endbell, and a compliant member. The stator has a first end and a second end opposite the first end with a chamber therein. The rotor is at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis. The axle has a first end, a second end opposite the first end, and supports the rotor. The endcap is located at a first end of the stator and adjacent to the first end of the axle, and the endbell is located at the second end of the stator and adjacent to the second end of the axle. The compliant member is positioned relative to the axle between a portion of the rotor and one of the endbell and the endcap. 1. A system for providing torque , the system comprising:a stator having a first end, a second end opposite the first end, and a chamber therein;a rotor at least partially positioned in the chamber and rotatable relative to the stator about a longitudinal axis;an axle having a first end, a second end opposite the first end, and supporting the rotor;an endcap located at a first end of the stator and adjacent to the first end of the axle;an endbell located at the second end of the stator and adjacent to the second end of the axle; anda compliant member positioned relative to the axle between a portion of the rotor and one of the endbell and the endcap.2. The system of claim 1 , the compliant member being a resilient member.3. The system of claim 1 , the compliant member including a spring.4. The system of claim 1 , the compliant member positioned partially around the axle.5. The system of claim 1 , the compliant member having a spring constant of between 250 kilonewtons per meter (kN/m) and 750 kN/m.6. The system of claim 1 , the compliant member being positioned adjacent the axle between a portion of the rotor and the endcap.7. The system of claim 1 , wherein the endbell is elastically deformable and has a spring constant of between 250 kN/m ...

Подробнее
Номер записи: 42
04-03-2021 дата публикации

BREATHER DEVICE

Номер: US20210066992A1
Автор: AOKI Kazutaka, Haruno Kentaro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A breather device includes an intake path configured to communicate between an interior space of a target case and an exterior space, an exhaust path configured to communicate between the interior space and the exterior space and at least partially separated from the intake path, an intake valve inserted in the intake path and configured to allow outside air to flow into the interior space only when an internal pressure Pi is lower, at least by a fixed extent, than an external pressure Po, and an exhaust valve inserted in the exhaust path and configured to allow gas within the interior space to flow toward the exterior space only when the internal pressure Pi is higher, at least by a fixed extent, than the external pressure Po, and a water stop filter disposed downstream of the intake valve in an intake air flowing direction in the intake path. 1. A breather device attached to a target case for regulating an internal pressure of the target case , the breather device comprising:an intake path which is configured to communicate between an interior space of the target case and an exterior space;an exhaust path which is configured to communicate between the interior space and the exterior space, and is at least partially separated from the intake path;an intake valve which is inserted in the intake path and is configured to allow outside air to flow into the interior space only when the internal pressure is lower, at least by a fixed degree, than an external pressure;an exhaust valve which is inserted in the exhaust path and is configured to allow gas within the interior space to flow toward the exterior space only when the internal pressure is higher, at least by a fixed degree, than the external pressure, anda water stop filter which is disposed, in the intake path, upstream of the intake valve in an intake air flowing direction and is configured to allow passage of gas while blocking passage of liquid.2. The breather device according to claim 1 , wherein:the intake ...

Подробнее
Номер записи: 43
17-03-2022 дата публикации

MOTOR AND ROTOR BLADE APPARATUS

Номер: US20220085685A1
Автор: Makino Yusuke, OGASAWARA Daisuke
Принадлежит:

A motor includes a rotor, a stator, and a support member. The rotor includes a rotor magnet, a magnet holding portion, and spoke portions. The stator includes a plurality of coils and a stator core. The support member includes a stator holding portion and a mount portion. The mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion. The slits each have openings in an outer circumferential end and an upper surface of the mount portion. The openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in the circumferential direction when viewed in the axial direction. 1. A motor comprising:a rotor that is rotatable about a central axis extending in an up/down direction;a stator positioned radially inside the rotor; anda support member that supports the stator, whereinthe rotor includes a rotor magnet radially facing the stator, a magnet holding portion that is annular and holds the rotor magnet, and a plurality of spoke portions radially extending from an upper end portion of the magnet holding portion through an upper side of the stator,the stator includes a plurality of coils and a stator core holding the plurality of coils,the support member includes a stator holding portion extending in an axial direction, and a mount portion extending radially outward from a lower end portion of the stator holding portion through a lower side of the stator,the mount portion includes a plurality of slits extending radially inward from a radially outer end portion of the mount portion,the slits each have openings in an outer circumferential end and an upper surface of the mount portion, andthe openings of the slits positioned in the upper surface of the mount portion are positioned between the coils adjacent to each other in a circumferential direction when viewed in the axial direction.2. The motor according to claim 1 , whereinthe support ...

Подробнее
Номер записи: 44
17-03-2022 дата публикации

PUMP UNIT COMPRISING A CONNECTOR WITH SINTERED FILTER FOR PRESSURE COMPENSATION

Номер: US20220085686A1
Автор: NICKEL Conrad
Принадлежит:

A pump unit assembly includes an electric motor with a printed circuit board carrying a controller, a pump driven by the electric motor, a housing surrounding the printed circuit board, and a plug connector which is fixed to an outside of the housing by a flange. The plug connector covers an opening of the housing and includes contacts directly electrically contacting the printed circuit board and passing through the opening of the housing. The connector includes a pressure compensator including a sintered filter to vent the housing. 110-. (canceled)11. A pump assembly , comprising:an electric motor with a printed circuit board carrying a controller;a pump driven by the electric motor;a housing surrounding the printed circuit board; anda plug connector which is fastened on an outside of the housing by a flange, which covers an opening of the housing, and which includes contacts directly electrical contacting the printed circuit board which pass through the opening of the housing;wherein the plug connector includes a pressure compensator including a sintered filter to vent the housing.12. The pump assembly according to claim 11 , wherein the sintered filter is in a first opening of a vent channel which extends through the connector.13. The pump assembly according to claim 12 , wherein the connector includes a base housing which is bent claim 12 , the contacts being provided in the base housing and the base housing connecting to the flange claim 12 , the base housing including the first opening.14. The pump assembly according to claim 12 , wherein the sintered filter is inserted into the first opening of the vent channel claim 12 , the vent channel passing through the base housing from the first opening to a second opening claim 12 , the second opening being located adjacent to the opening of the housing.15. The pump assembly according to claim 12 , wherein the base housing includes the first opening of the vent channel on an adjacent to a bent portion of the base ...

Подробнее
Номер записи: 45
27-02-2020 дата публикации

COMPACT, MODULAR, PUMP OR TURBINE WITH INTEGRAL MODULAR MOTOR OR GENERATOR AND COAXIAL FLUID FLOW

Номер: US20200067376A1
Автор: Dreiss Andreas, Havrilla Neil, JR. David, Judge Scott C., Olexson
Принадлежит:

A coaxial pump or turbine module includes an integral, modular motor or generator comprising a magnet structure containing radial or axial permanent magnets and/or induction coils detachably fixed to a rotor, and a stator housing detachably fixed to the module housing. Working fluid is directed axially through a flow path symmetrically distributed within an annulus formed between the module housing and the stator housing. The stator housing can be cooled by the working fluid, or by a cooling fluid flowing between passages of the flow path. The flow path can extend over substantially a full length and rear surface of the stator housing. A plurality of the modules can be combined into a multi-stage apparatus, with rotor speeds independently controlled by corresponding variable frequency drives. Embodiments include guide vanes and/or diffusers. The rotor can be fixed to a rotating shaft, or rotate about a fixed shaft. 1. A sealless pump or turbine module having an integral motor or generator , the module comprising:an inlet located at a proximal end of the module, the inlet being on a central axis of the module;an outlet located at a distal end of the module, the outlet being on the central axis of the module;a module housing surrounding the module;a rotor suspended within the module housing; a stator within a sealed stator housing, the stator comprising at least one electromagnet directed toward the rotor, said stator housing being removably axially, radially, and rotationally fixable to the module housing;', 'an electrical port formed in the stator housing and configured to form a seal with the module housing when the stator housing is fixed to the module housing, the electrical port providing a sealed passage through which electrical conductors can be directed for interconnection between the at least one electromagnet and apparatus that is external to the module housing;', 'a plurality of magnetic devices assembled in a magnet structure that is removably constrained ...

Подробнее
Номер записи: 46
27-02-2020 дата публикации

Biased Centralizing Arms Bearing In Submersible Pump Motor

Номер: US20200067378A1
Автор: "OGrady Kenneth", Clingman James Christopher, Knapp John
Принадлежит: Baker Hughes Oilfield Operations LLC

A submersible pump electrical motor has a stator with a stator bore, a shaft with rotor sections in the stator bore, and a shaft bearing between rotor sections. The bearing has a bearing body having a hub and centralizing arms circumferentially spaced around the hub. Each of the arms curves and is biased against the stator bore wall. A tab on at least one of the arms engages a slot in the stator bore wall. The bearing body, the hub, and the arms are formed of a single-piece monolithic metal that undergoes elastic deflection of the arms when the bearing body is installed in the stator bore. 1. A submersible pump electrical motor , comprising:a stator having a stator bore with a longitudinal axis and an inward-facing stator bore wall;a shaft extending through the stator bore along the axis;first and second rotor sections mounted to the shaft for rotation therewith;a bearing body having a hub with a hub bore through which the shaft extends; anda plurality of centralizing arms that extend outward from the hub and are biased against the stator bore wall.2. The motor according to claim 1 , further comprising:an axially extending slot in the stator bore wall; anda tab on an outer portion of one of the centralizing arms that fits within the slot to prevent rotation of the bearing body relative to the stator.3. The motor according to claim 1 , wherein the centralizing arms are formed of a metal.4. The motor according to claim 1 , wherein each of the centralizing arms gradually decreases in thickness from a junction with an exterior of the hub to a tip of the centralizing arm.5. The motor according to claim 1 , wherein the centralizing arms circumscribe an outer diameter while the bearing body is removed from the stator bore that is greater than an inner diameter of the stator bore claim 1 , resulting in an elastic deflection of the centralizing arms when the bearing body is inserted within the stator bore.6. The motor according to claim 1 , wherein:each arm has a tip and a ...

Подробнее
Номер записи: 47
19-03-2015 дата публикации

Electrical machine

Номер: US20150076947A1
Автор: Michael Veeh
Принадлежит: BAUMUELLER NUERNBERG GMBH

An electrical machine has a machine housing, which encloses a machine interior, and a flange bearing shield formed with a shaft feedthrough for a machine shaft. A leakage space that communicates with at least one drain opening is provided in the region of the shaft feedthrough.

Подробнее
Номер записи: 48
05-06-2014 дата публикации

Fan motor

Номер: US20140154108A1
Автор: Kiyoshi Hirosawa, Toshihiro Yamamoto
Принадлежит: IKURA SEIKI SEISAKUSHO CO Ltd

Fan motor 1 has: a stator 6, a rotor 4 having a rotary shaft 22, a cover portion 8 and bracket 2 surrounding the entirety of the stator 6 and rotor 4 in a liquid-tight manner except for the top end portion of rotary shaft 22, and a fan member 10 affixed to the top end portion of the rotary shaft 22; on cover portion 8 and bracket 2, an insertion hole 42 projecting outward of cover portion 8 and bracket 2 is formed on cover portion 8 and bracket 2, penetrating the top end portion of rotary shaft 22, and a cover portion bearing 44 is erected between insertion hole 42 and rotary shaft 22.

Подробнее
Номер записи: 49
16-03-2017 дата публикации

ELECTRIC MOTOR WITH COMBINED LIQUID AND AIR COOLING

Номер: US20170077787A1
Автор: CICILIANI Philippe, DOUVRY Mickael, LOTZ Hubert, PERA Thierry
Принадлежит: MOTEURS LEROY-SOMER

Electric motor includes a housing provided with an opening equipped with a membrane forming a barrier to liquid water between the inside and the outside of the housing but permeable to water vapour, the stator being liquid cooled and the motor having an internal fan to generate a forced circulation of air inside the motor, the membrane being situated in a region in which the forced circulation of air exposes it on the inside to a pressure higher than atmospheric pressure. 110-. (canceled)11. An electric motor comprising a housing provided with an opening equipped with a membrane forming a barrier to liquid water between an inside and an outside of the said housing but permeable to water vapour , the stator being liquid cooled and the motor comprising an internal fan to generate a forced circulation of air inside the motor , the membrane being situated in a region in which the forced circulation of air exposes it on the inside to a pressure higher than atmospheric pressure.12. The electric motor according to claim 11 , the membrane being situated in an half of the motor that is closest to the fan.13. The electric motor according to claim 11 , the membrane comprising a fluorinated porous material.14. The electric motor according to claim 13 , the membrane comprising PTFE.15. Electric The electric motor according to claim 11 , the membrane being carried by a plug fixed removably to the housing.16. The electric motor according to the claim 15 , the plug being configured to be screwed into the opening.17. The electric motor according to claim 11 , the opening being arranged in the upper part of the housing.18. The electric motor according to claim 11 , the fan being a radial-flow fan.19. The electric motor according to claim 11 , the membrane occupying claim 11 , on an axis of rotation claim 11 , an axial position that at least partially intersects that of the fan.20. The electric motor according to claim 11 , the air circulating along ducts for circulation to the stator ...

Подробнее
Номер записи: 50
05-03-2020 дата публикации

Motor assembly

Номер: US20200076268A1
Автор: Heewoon Kim, Hosuk KIM, Seongguk KIM, Youngjin JI
Принадлежит: LG ELECTRONICS INC

A motor includes a housing that has a bottom with a first bearing accommodation and a cylindrical side surface portion which extends from the bottom; a rotor assembly with a rotation shaft, and a rotor mounted on the rotation shaft and accommodated inside the housing; a stator assembly accommodated inside the housing and surrounding the rotor; a housing cover coupled to an upper end of the housing and having a second bearing accommodation; a flow guide on the housing cover; an impeller connected to the rotation shaft over the flow guide; an impeller cover; a first bearing accommodated in the first bearing accommodation and receiving the rotation shaft; and a second bearing accommodated in the second bearing accommodation and receiving the rotation shaft, the housing cover having a cover body with an opening, connection arms between the second bearing accommodation and the opening portion, and a guide rib.

Подробнее
Номер записи: 51
02-04-2015 дата публикации

Spindle motor and hard disk drive including the same

Номер: US20150092299A1
Автор: Kum Kyung Lee, Shin Young Cheong, Song Bon Oh
Принадлежит: Samsung Electro Mechanics Co Ltd

There are provided a spindle motor including a lower thrust member fixed to a base member; and a shaft fixed to the lower thrust member, wherein the lower thrust member includes a fitting protrusion protruding upwardly in the axial direction and fitted into a fixing groove formed in a lower end of the shaft so as to be depressed upwardly in the axial direction, a thrust bearing surface forming a thrust bearing between the thrust bearing surface and a lower surface of the sleeve, and an extension part protruding from an outer edge of the lower thrust member in a radial direction upwardly in the axial direction to form a liquid-vapor interface between the extension part and an outer surface of the sleeve while enclosing the sleeve, and the thrust bearing surface has inner and outer concave parts depressed in one of inner and outer diameter directions thereof, respectively.

Подробнее
Номер записи: 52
12-03-2020 дата публикации

METHOD FOR PRODUCING A ROTOR UNIT

Номер: US20200083774A1
Автор: RINN Guenter, TONTSCH Klaus-Georg
Принадлежит:

The invention relates to a method for producing a rotor unit () of an electric motor, in particular a canned motor or the like, for driving a pump wheel of a pump and to a pump, the rotor unit being composed of a rotor (), a shaft (), a thrust washer () and sliding bearings (), the rotor being formed by a permanent magnet () or a shading coil, the rotor and the thrust washer being attached to the shaft, the shaft being rotatably mounted at one end () of the shaft and at the thrust washer by means of respective sliding bearings, the thrust washer being in contact with an axial lateral surface () of one of the sliding bearings (), wherein the shaft is made from a fiber-reinforced polymer material. 110111213141522162114. A method for producing a rotor unit () of an electric motor , in particular a canned motor or the like , for driving a pump wheel of a pump , the rotor unit being composed of a rotor () , a shaft () , a thrust washer () and sliding bearings ( , ) , the rotor being formed by a permanent magnet () or a shading coil , the rotor and the thrust washer being attached to the shaft , the shaft being rotatably mounted at one end () of the shaft and at the thrust washer by means of respective sliding bearings , the thrust washer being in contact with an axial lateral surface () of one of the sliding bearings () , characterized in that the shaft is produced from a fiber-reinforced polymer material.213. The method according to claim 1 , characterized in that the thrust washer () is produced from a fiber-reinforced polymer material.31312. The method according to claim 1 , characterized in that the thrust washer () is co-molded with the shaft ().4. The method according to claim 1 , characterized in that the production from the fiber-reinforced material takes place by transfer molding or by injection molding.52212. The method according to claim 4 , characterized in that the permanent magnet () or the shading coil is placed in a mold and is joined with the shaft () by ...

Подробнее
Номер записи: 53
21-03-2019 дата публикации

MAGNETIC THRUST LOAD SUPPORT FOR DOWNHOLE-TYPE SYSTEM

Номер: US20190089221A1
Автор: McMullen Patrick
Принадлежит: Upwing Energy, LLC

A downhole-type system includes a rotatable shaft; a sensor that can sense an axial position of the shaft and generate a first signal corresponding to the axial position of the shaft; a controller coupled to the sensor, in which the controller can receive the first signal generated by the sensor, determine an amount of axial force to apply to the shaft to maintain a target axial position of the shaft, and transmit a second signal corresponding to the determined amount of axial force; and multiple magnetic thrust bearings coupled to the shaft and the controller, in which each magnetic thrust bearing can receive the second signal from the controller and modify a load, corresponding to the second signal, on the shaft to maintain the target axial position of the shaft. 1. A downhole-type system comprising:a shaft; sense an axial position of the shaft, and', 'generate a first signal corresponding to the axial position of the shaft;, 'a sensor configured to receive the first signal generated by the sensor,', 'determine an amount of axial force to apply to the shaft to maintain a target axial position of the shaft, and', 'transmit a second signal corresponding to the determined amount of axial force; and, 'a controller coupled to the sensor, the controller configured to receive the second signal from the controller, and', 'modify a load, corresponding to the second signal, on the shaft to maintain the target axial position of the shaft., 'a plurality of magnetic thrust bearings coupled to the shaft and the controller, each magnetic thrust bearing configured to2. The system of claim 1 , wherein the plurality of magnetic thrust bearings is sealed from a downhole environment.3. The system of claim 1 , wherein the plurality of magnetic thrust bearings is lubricant-free.4. The system of claim 1 , wherein critical components of the plurality of magnetic thrust bearings are sealed from a downhole environment.5. The system of claim 1 , wherein the load is transmitted on the shaft ...

Подробнее
Номер записи: 54
28-03-2019 дата публикации

Electric linear motion actuator

Номер: US20190093720A1
Автор: Yui Masuda
Принадлежит: NTN Corp

The linear motion mechanism and the electric motor are arranged in the axial direction with a rotary input-output shaft of the linear motion mechanism interposed therebetween. In the electric motor, orientation of a magnetic pole generating interlinkage flux is parallel with a rotation shaft of the motor. The linear motion mechanism has a thrust bearing for retaining a reaction force against a load in the axial direction in association with linear motion of the linear motion part. The control unit has a thrust force applying section for applying a thrust force such that a force acting in the axial direction of the rotary input-output shaft due to interlinkage flux between the stator and the rotor causes generation of a force, in the axial direction, acting on the thrust bearing.

Подробнее
Номер записи: 55
26-03-2020 дата публикации

Pressure dam bearing

Номер: US20200096242A1
Автор: Matthew L. HEISEY, Paul W. Snell
Принадлежит: Johnson Controls Technology Co

A motor is configured to drive a centrifugal compressor. The motor includes a stator, a rotor, and a shaft. The shaft is supported by a pressure dam bearing (230,240). The pressure dam bearing is lubricated with a lubricant. The lubricant creates a lubricant wedge within the pressure dam bearing that exert an upward force on the shaft. The upward force causes an amount of vibration within the motor. The pressure dam bearing includes a pressure dam (232,242) configured to hold a portion of the lubricant and exert a downward force on the shaft. The downward force balances the upward force and reduces the amount of vibration within the motor, thus achieving greater hydrodynamic stabilization.

Подробнее
Номер записи: 56
12-04-2018 дата публикации

Cooling Structure of Drive Motor

Номер: US20180102692A1
Автор: Dongyeon Han, Hyoungjun Cho, Jungwoo Lee
Принадлежит: Hyundai Motor Co

A cooling apparatus of a drive motor is disclosed. An exemplary embodiment of the cooling apparatus may include a flow passage through which coolant flows. The flow passage is formed in the motor housing. A coolant inflow portion and a coolant outflow portion are connected with the flow passage. At least one penetration hole is formed in the motor housing and connected with the flow passage. A seal member is engaged with the penetration hole to vary a cross-sectional area of the flow passage.

Подробнее
Номер записи: 57
08-04-2021 дата публикации

LUBRICANT SUPPORTED ELECTRIC MOTOR WITH A MONITORING PORT

Номер: US20210104936A1
Автор: Dedo Jacqueline, Remboski Donald, Versteyhe Mark
Принадлежит:

A lubricant supported electric motor includes a stator presenting an outer raceway and a rotor extending along an axis and rotatably disposed within the stator. The rotor presents an inner raceway disposed in spaced relationship with said outer raceway to define at least one hydrostatic support chamber disposed therebetween. A lubricant is disposed in the hydrostatic support chamber for supporting the rotor within the stator. A monitoring port is disposed in fluid communication with the at least one hydrostatic support chamber, and a sensor is coupled with the monitoring port for monitoring an operating characteristic of the lubricant disposed in said at least one hydrostatic support chamber. This monitored operating characteristic is then used to determine a real-time operating condition of the lubricant supported electric motor. 1. A lubricant supported electric motor comprising:a stator presenting an outer raceway;a rotor extending along an axis and rotatably disposed within said stator;said rotor presenting an inner raceway disposed in spaced relationship with said outer raceway to define at least one hydrostatic support chamber therebetween;a lubricant disposed in said hydrostatic support chamber for supporting said rotor within said stator,a monitoring port disposed in fluid communication with said at least one hydrostatic support chamber; anda sensor coupled with said monitoring port for monitoring an operating characteristic of said lubricant disposed in said at least one hydrostatic support chamber for use in determining a real-time operating condition of the lubricant supported electric motor.2. The lubricant supported electric motor as set forth in claim 1 , further comprising a controller disposed in electrical communication with said sensor and configured to analyze said monitored operating characteristic of said lubricant disposed in said hydrostatic support chamber and determine the real-time operating condition of the lubricant supported electric ...

Подробнее
Номер записи: 58
08-04-2021 дата публикации

MOTOR CONTROLLER ASSEMBLY WITH CONTAINMENT SYSTEM FOR CAPACITOR

Номер: US20210104939A1
Автор: Glenn Douglas D., Modi Chetan O., Palmer Steven R., Pendru Aashish, Sherman Jeffrey Scott
Принадлежит: NIDEC MOTOR CORPORATION

A motor controller assembly is configured for use with an electric motor and includes a controller and an absorbent pad. The controller includes a capacitor with a capacitor shell and a liquid electrolyte contained therein. The capacitor shell has a frangible rupture area that opens during a capacitor rupture event to permit the discharge of liquid electrolyte from the capacitor shell. The absorbent pad overlies the rupture area to collect discharged liquid electrolyte. 1. A motor controller assembly for an electric motor , said motor controller assembly comprising:a controller,said controller including a capacitor with a capacitor shell and a liquid electrolyte contained therein,said capacitor shell having a frangible rupture area that opens during a capacitor rupture event to permit the discharge of liquid electrolyte from the capacitor shell; andan absorbent pad overlying the rupture area to collect discharged liquid electrolyte.2. The motor controller assembly as claimed in claim 1 , further comprising:a capacitor cover being supported relative to the controller and overlying at least the rupture area.3. The motor controller assembly as claimed in claim 2 ,said capacitor cover presenting a socket receiving at least part of the absorbent pad and at least part of the capacitor.4. The motor controller assembly as claimed in claim 3 ,said capacitor cover presenting a vent opening in communication with the socket to permit gas to escape from the socket through the vent opening during the capacitor rupture event.5. The motor controller assembly as claimed in claim 4 ,said absorbent pad covering the vent opening.6. The motor controller assembly as claimed in claim 3 ,said capacitor cover presenting an open face through which the capacitor extends into the socket,said absorbent pad being substantially coextensive with the open face of the capacitor cover.7. The motor controller assembly as claimed in claim 6 ,said capacitor cover including an endwall and a perimetrical ...

Подробнее
Номер записи: 59
26-03-2020 дата публикации

Actuator for in-vehicle unit

Номер: US20200099269A1
Автор: Eiichiro Ito, Masaki KASHIMA, Tatsuro MITSUHIRA, Tatsuro Suzuki
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A motor is contained in a motor container space. A controller is contained in a controller container space. The motor container space and the controller container space are arranged in series in a direction of a rotation axis of a motor shaft, while interposing a partition wall therebetween. The motor shaft is inserted in a motor shaft through-hole of the partition wall. A magnet is disposed at an end of the motor shaft, in the controller container space. A rotation sensor is disposed in the controller container space oppositely to the magnet, for monitoring a rotational position of the motor shaft on the basis of variation in magnetic field due to rotation of the magnet. A cover made of nonmagnetic metal is disposed between the magnet and the rotation sensor so as to cover the motor shaft through-hole.

Подробнее
Номер записи: 60
26-03-2020 дата публикации

Commutator Brush and Rolled-Up Spring Assembly

Номер: US20200099276A1
Автор: Lavasser Leonard J., Mancl Dennis J.
Принадлежит: Electro Motor, Inc.

A universal motor includes a commutator brush with a cavity for sheltering a constant force spring from a wire shunt. In some examples, the cavity can be formed by milling a blind hole into the brush such that an axial centerline of the hole is perpendicular to the brush's length. The cavity is near the back end of the brush, at the end farthest away from the commutator, but is also slightly forward to leave a rear portion of the brush to serve as a barrier between the wire shunt and the spring. The diameter of the cavity is slightly larger than the width of the brush, so the cavity creates a slot in the side of the brush. The slot allows part of the spring to reach out beyond the cavity to where the spring can hook onto a front edge of a stationary sleeve that supports the brush. 1. A motor for turning a driven member at an inboard end of the motor , the motor comprising:a housing at the inboard end of the motor;a bracket at an outboard end of the motor;a stator core interposed between the housing and the bracket;an inboard bearing supported by the housing;an outboard bearing supported by the bracket;a rotor supported by the inboard bearing and the outboard bearing;a rotor winding supported by the rotor;a commutator supported by the rotor;a commutator brush having a front end and a back end, the front end engaging the commutator, the commutator brush being elongate in a longitudinal direction that extends from the front end to the back end of the commutator brush, the commutator brush having a forward pocket face and a rear pocket face defining a cavity therebetween, the cavity being at an intermediate position between the front end and the back end of the commutator brush, the front end of the commutator brush being closer to the forward pocket face than to rear pocket face, the back end of the commutator brush being closer to the rear pocket face than to the front pocket face;a wire shunt having an attached end connected to the back end of the commutator brush; ...

Подробнее
Номер записи: 61
02-04-2020 дата публикации

WATERTIGHT ELECTRIC ACTUATOR FOR A TRIM TAB ASSEMBLY OR WAKE GATE ASSEMBLY

Номер: US20200102053A1
Автор: Baros Davor
Принадлежит:

An actuator comprises a housing and a drive tube assembly disposed within the housing. The drive tube assembly includes a drive tube provided with internal threads, a piston nut provided with external threads which threadedly engage the inner threads of the drive tube, and an output shaft connected to the piston nut. A motor rotates the drive tube to cause the piston nut to reciprocate along a length of the drive tube and the output shaft to reciprocate relative to the housing. There are bearings which transmit axial loads from the drive tube to the housing and transmit radial loads from the drive tube to the housing. 1. An actuator comprising:a housing;a drive tube assembly disposed within the housing, the drive tube assembly including a drive tube provided with internal threads, a piston nut provided with external threads which threadedly engage the internal threads of the drive tube, and an output shaft connected to the piston nut;a motor, the motor rotating the drive tube to cause the piston nut to reciprocate along a length of the drive tube and the output shaft to reciprocate relative to the housing; andbearings which transmit axial loads from the drive tube to the housing and radial loads from the drive tube to the housing.2. The actuator as claimed in wherein the piston nut is threadedly connected to the output shaft and a diameter of the external threads of the piston nut are larger in diameter than threads that threadedly connect the piston nut to the output shaft.3. The actuator as claimed in further including a planetary gear reduction coupling the motor to the drive tube.4. The actuator as claimed in further including a vent tube allowing fluid communication between the atmosphere and an interior of the housing.5. The actuator as claimed in wherein the actuator is watertight.6. The actuator as claimed in wherein the actuator is part of a trim tab assembly or a wake gate assembly.7. An actuator comprising:a housing;a drive shaft assembly disposed within ...

Подробнее
Номер записи: 62
20-04-2017 дата публикации

Motor structure capable of dissipating heat therein

Номер: US20170110938A1
Автор: Wen-San Chou
Принадлежит: Individual

A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing a central portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of communication holes and a plurality of outlet holes for allowing the air which has entered the housing to flow thereout. In addition, the present invention provides another path so that an outer portion of the air current can flow along the outer surface of the housing to reduce the temperature of the housing.

Подробнее
Номер записи: 63
26-04-2018 дата публикации

Static pressure seal-equipped motor

Номер: US20180112709A1
Автор: Kazumasa FURUTA, Toshiki Maruyama
Принадлежит: HARMONIC DRIVE SYSTEMS INC

A static pressure seal-equipped motor ( 1 ) in which front and rear gaps are sealed by first and second static pressure seal portions ( 30, 40 ) disposed at first and second axial end portions ( 12 a, 12 c ) of a motor rotating shaft ( 12 ) protruding toward front and rear. Sealing gas supplied to sealing gaps ( 32, 42 ) of the first and second static pressure seal portions ( 30, 40 ) is caused to diverge and flow to chemical liquid atmospheres ( 5 a, 5 b ) and a motor chamber ( 18 ) or an encoder chamber ( 21 ) into the chemical liquid atmospheres ( 5 a, 5 b ), and also prevent entry of chemical liquid-containing gas from the chemical liquid atmospheres ( 5 a, 5 b ) into the motor chamber ( 18 ) or encoder chamber ( 21 ).

Подробнее
Номер записи: 64
02-04-2020 дата публикации

Electric pump device

Номер: US20200106324A1
Автор: Hitoshi Sakamoto, Tatsuo Abe, Yoshiyuki Kobayashi
Принадлежит: Nidec Tosok Corp

A motor, an inverter substrate electrically connected to the motor, a housing accommodating the motor and the inverter substrate, and a pump section driven by the motor are included. The inverter substrate is disposed on one side of the motor. The pump section is disposed on the other side of the motor. The housing has a motor housing section accommodating the motor, an inverter housing section accommodating the inverter substrate, and a breather section establishing communication between inside and outside of the housing. The motor housing section has an accommodation tubular section accommodating the motor and a brim section spreading outward in a radial direction from an end of the accommodation tubular section. The inverter housing section is disposed on one side of the brim section and overlaps the brim section when seen in the axial direction. The breather section is disposed at the brim section.

Подробнее
Номер записи: 65
02-04-2020 дата публикации

ELECTRIC MOTOR WITH AIR BAFFLE

Номер: US20200106327A1
Автор: Amalfitano Mark S., De La Garza Eric, Hussey John H., Iglesias René Cruz, Mercado Fidel Flores, Sherman Jeffrey S.
Принадлежит: NIDEC MOTOR CORPORATION

An electric motor includes a housing shell, an electrical component, and a baffle for directing airflow to the electrical component. The baffle includes a baffle connection element. The shell includes a shell connection element. Interengagement of the connection elements at least substantially restricts axial shifting of the baffle. 1. A motor for use in a machine , said motor comprising:a rotor rotatable about an axis;a stator including a core presenting axially opposite first and second core ends;an electrical component for controlling at least one aspect of motor operation; anda housing including a shell at least substantially circumscribing the stator,said shell presenting first and second axial shell margins corresponding to said first and second core ends,said first core end being disposed between said shell margins; anda baffle including a generally radially extending, plate-like body and a baffle connection element,said baffle including air-directing structure directing air toward said electrical component,said body being disposed between said first core end and said first shell margin,said body being disposed between said first core end and said electrical component,said shell including a shell connection element,interengagement of said connection elements at least substantially restricting axial shifting of the body toward the first shell margin.2. The motor as claimed in claim 1 ,interengagement of said connection elements additionally at least substantially restricting axial shifting of the body toward the first core margin.3. The motor as claimed in claim 1 ,said shell presenting an inner shell diameter,said body presenting an outer body diameter that is less than or equal to the inner shell diameter.4. The motor as claimed in claim 3 ,said outer body diameter being less than the inner shell diameter.5. The motor as claimed in claim 1 ,said outer body diameter being about 0.015 inches less than the shell inner diameter.6. The motor as claimed in claim 1 ...

Подробнее
Номер записи: 66
28-04-2016 дата публикации

Motor, Positioning Device, Conveyance Device

Номер: US20160118855A1
Автор: Hayao Watanabe, Kazunori KOIZUMI, Masayuki Maruyama, Toshinori Satou, Yusuke Ota
Принадлежит: NSK LTD

Provided are a motor having a small number of parts and provided with waterproof performance in a low-cost method, and a positioning device and a conveyance device that are positioned and driven by the motor. The motor includes a columnar motor body that is formed with a center hole penetrating in an axial direction, and a housing for accommodating the motor body. The housing includes a cylindrical part that covers an outer peripheral surface of the motor body; a rotation output part provided on an upper side of the cylindrical part in the axial direction and fixed to rotary bodies of the motor body; and a fixed part provided on a lower side of the cylindrical part in the axial direction and fixed to fixed bodies of the motor body. The housing is sealed by a sealing mechanism at only one place of the cylindrical part in the axial direction.

Подробнее
Номер записи: 67
26-04-2018 дата публикации

Electric motor for suppressing entry of foreign substances

Номер: US20180115213A1
Автор: Yohei Kamiya
Принадлежит: FANUC Corp

An electric motor is provided with an annular member supported by a cylindrical member of a front housing. The annular member includes an opposite part spaced from a surface of a ring member in a rotary shaft, which extends in the circumferential direction. The annular member includes first cover part opposed to first surface of the ring member, and second cover part opposed to second surface of the ring member. The first cover part and the second cover part are spaced from the ring member so that a pressure in a space sandwiched by the first cover part and the first surface is equalized with a pressure in a space sandwiched by the second cover part and the second surface.

Подробнее
Номер записи: 68
18-04-2019 дата публикации

Wound rotor motor for vehicle

Номер: US20190115805A1
Автор: Jae Bum Park, Kyoung Bum Kim, Sang Hwa Do, Yong Sung Jang
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction, to immerse lower coil portions of a stator and a rotor in cooling oil, thereby improving the cooling effect beyond that of a conventional configuration, in which lower coil portions are partially immersed, and consequently decreasing the capacity of an oil pump. A wound rotor motor is provided, in which a rotary shaft is arranged in the vertical direction and has therein a flow passage, through which cooling oil moves up from the region below the rotor and is sprayed to the region above the rotor by centrifugal force generated by rotation of the rotor, thereby enhancing the motor-cooling effect, decreasing the frictional loss of the rotor due to the cooling oil, and consequently improving the operational efficiency of the motor.

Подробнее
Номер записи: 69
18-04-2019 дата публикации

MOTOR CONTROL DEVICE AND ROBOT SYSTEM

Номер: US20190115808A1
Автор: MISU Keijiro, SADAKANE Kenichi, SODA Ryuichi
Принадлежит: KABUSHIKI KAISHA YASKAWA DENKI

A motor control device includes a base board, a drive board including switching devices including switching elements for power conversion, disposed along a plane intersecting the base board, and attached to the base board, and a board including a processor configured to execute computation processing for controlling the switching devices, disposed along a plane intersecting the base board, and attached to the base board. 1. A motor control device comprising:a base board;a drive board including a switching device for power conversion, the drive board being disposed along a plane intersecting the base board and attached to the base board; anda control board including a processor configured to execute computation processing for controlling the switching device, the control board being disposed along a plane intersecting the base board and attached to the base board.2. The motor control device according to claim 1 , wherein the processor comprises a first processor claim 1 , and wherein the base board includes a second processor configured to execute the computation processing for controlling the switching device in cooperation with the first processor.3. The motor control device according to claim 2 , wherein the second processor as mounted on the base board is interposed between the first processor as mounted on the control board and the switching device as mounted on the drive board claim 2 , and wherein the second processor executes computation processing in response to an input from the first processor.4. The motor control device according to claim 1 , wherein the base board includes:a drive circuit connected to the switching device;a control circuit connected to the processor and located apart from the drive circuit; anda transmitter configured to transmit a signal between the drive circuit and the control circuit in a state where the drive circuit and the control circuit are electrically insulated.5. The motor control device according to claim 1 , whereinthe ...

Подробнее
Номер записи: 70
09-04-2020 дата публикации

VEHICLE MOTOR

Номер: US20200112224A1
Автор: OKUBO Tatsuro, Terasawa Hideo
Принадлежит: Mitsubishi Electric Corporation

A vehicle motor is equipped with a downwind side air guiding member to guide air, flowing in from a suction port formed in an end of a frame at a first bracket side, through a stator ventilating path, into contact with an end portion of a stator coil, along the stator coil from an end portion of the stator coil, and then toward a stator core, and then to an exhaust port formed in a second bracket side of the frame end portion or in a second bracket. 1. A vehicle motor comprising:a frame to be fixed to a vehicle;a rotor shaft accommodated by the frame;a rotor core engaging the rotor shaft to integrally rotate with the rotor shaft;a rotor conductor held by the rotor core;a stator core opposing an outer peripheral surface of the rotor core with a gap therebetween, and attached to an inner peripheral surface of the frame, the stator core having stator ventilating paths, the stator ventilating paths extending in an axial direction of the rotor shaft;a stator coil held by the stator core further at an inner periphery side than the stator ventilating paths in a state in which both end portions of the stator coil protrude from the stator core in the axial direction of the rotor shaft;a first bracket and a second bracket opposing each other in the axial direction of the rotor shaft and sandwiching therebetween the rotor core and the stator core, each bracket holding a bearing rotatably supporting the rotor shaft and attached to the frame; anda plurality of downwind side air guiding members to cause air, upon flowing in from a suction port formed in an end portion of the frame at a first bracket side and passes through the stator ventilating paths, to contact one of the end portions of the stator coil, then be guided from the end portion of the stator coil toward the stator core along the stator coil, and thereafter be guided to an exhaust port formed in the second bracket or in an end portion of the frame at a second bracket side.2. The vehicle motor according to claim 1 , ...

Подробнее
Номер записи: 71
25-08-2022 дата публикации

MOTOR

Номер: US20220271602A1
Автор: HIRAYAMA Tsubasa, KOKUBO Masahiro, MAKINO Takayuki
Принадлежит:

An electrical discharging device electrically connects a shaft of a motor and a housing. A plate portion of the housing has an opening through which the shaft is inserted and expands in a radial direction. A cover member is disposed on the plate portion and covers the electrical discharging device. A seal member is disposed between the shaft and the plate portion in the opening. The through hole is disposed in the plate portion and/or the cover member. The electrical discharging device is accommodated in an accommodation space surrounded by the plate portion and the cover member. The accommodation space is connected to the outside through the through hole. 1. A motor comprising:a shaft extending in an axial direction along a rotation axis;a rotor supported by the shaft and rotatable together with the shaft;a stator disposed radially outward of the rotor;a housing accommodating the rotor and the stator; andan electrical discharging device electrically connecting the shaft and the housing,wherein the housing includes:a plate portion which has an opening through which one axial end portion of the shaft is inserted and expands in the radial direction;a cover member that is disposed in one axial end surface of the plate portion and covers the electrical discharging device;a seal member that is disposed between the shaft and the plate in the opening; anda through hole that is disposed in at least one of the plate portion and the cover member,the electrical discharging device is accommodated in an accommodation space surrounded by the plate portion and the cover member, andthe accommodation space is connected to an outside through the through hole.2. The motor according to claim 1 , whereinthe housing further includes a filter, andthe accommodation space is connected to an outside via the through hole and the filter.3. The motor according to claim 2 , whereinthe housing further includes a tubular portion extending from an outer edge portion of the through hole, andthe ...

Подробнее
Номер записи: 72
25-08-2022 дата публикации

MOTOR

Номер: US20220271603A1
Автор: Aono Masato, HIRAYAMA Tsubasa, MAKINO Takayuki
Принадлежит:

A shaft of a motor includes a first shaft having a tubular shape extending in an axial direction, a lid portion disposed in one axial end portion of the first shaft, a second shaft extending on one axial side from the lid portion, a first shaft through hole penetrating the first shaft in a radial direction, and a second shaft through hole communicating with an inside of the first shaft and an external space of the shaft. The lid portion and the second shaft have conductivity. The second shaft through hole is disposed on one axial side with respect to the first shaft through hole. The second shaft is in contact with an electrical discharging device that electrically connects the shaft and the housing of the motor. 1. A motor comprising:a shaft having a first shaft having a tubular shape extending in an axial direction;a rotor supported by the first shaft and rotatable together with the shaft;a stator disposed radially outward of the rotor;a bearing that rotatably supports the first shaft;a housing that accommodates the rotor, the stator, and the bearing; andan electrical discharging device that electrically connects the shaft and the housing,wherein the shaft further includes:a lid portion disposed in one axial end portion of the first shaft;a second shaft extending from the lid portion on one axial side;a first shaft through hole radially penetrating the first shaft; anda second shaft through hole communicating with an inside of the first shaft and an external space of the shaft,wherein the lid portion and the second shaft have conductivity, andwherein the second shaft through hole is disposed on one axial side with respect to the first shaft through hole, andwherein the second shaft is in contact with the electrical discharging device.2. The motor according to claim 1 ,wherein an outer diameter of the second shaft is smaller than an outer diameter of the first shaft, andwherein the electrical discharging device is in contact with at least a partial region in a ...

Подробнее
Номер записи: 73
27-05-2021 дата публикации

GENERATOR

Номер: US20210159753A1
Автор: Matsunaga Yoshihiro
Принадлежит:

A generator includes an inverter cover which receives water intruding into a casing through a ventilation port provided on the casing and going along on a fuel tank existing in a periphery of an inverter to drop toward the inverter. 1. A generator that accommodates , in a casing , a plurality of components including an electric equipment unit , whereina ventilation port is provided on the casing, and{'b': '2', 'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a water receptacle part that receives water is arranged in the casing, the water intruding into the casing through the ventilation port and going along on a predetermined component of the plurality of components to drop toward the electric equipment unit, the predetermined component existing in a periphery of the electric equipment unit. . The generator according to , wherein'}an electronic component is attached to the electric equipment unit, andthe water receptacle part has a guide part that guides the water to a position separate from the electronic component, the guide part including a drain port.32. The generator according to claim , wherein the guide part includes a gutter part extending toward the drain port , and a slope part having a slope shape allowing the water dropping toward the electric equipment unit to flow to the gutter part.42. The generator according to claim , whereinthe electric equipment unit includes a circuit board to which the electronic component is attached, and an electric equipment casing covering an opposite surface of the circuit board to a surface onto which the electronic component is attached, andthe guide part is an eave covering an upper side above the electronic component.5. The generator according to claim 3 , whereinthe water receptacle part has:a sidewall rising from an outer edge of the gutter part; andin a portion, of the sidewall, on an opposite side to the drain port, another drain port that drains the water away at a position lower than an upper surface of the ...

Подробнее
Номер записи: 74
02-05-2019 дата публикации

Linear Actuator

Номер: US20190131859A1
Автор: CACCIA Alex, Thomas Adrian
Принадлежит:

A linear actuator comprising a support structure; at least one magnet provided on the support structure; a carriage; at least one coil arrangement provided around the carriage; and a spring arrangement operatively connected between the support structure and the carriage to urge the carriage towards a predetermined position relative to the support structure; wherein a part of one of the support structure and the carriage is received by a part of the other of the support structure and carriage so as to constrain motion of the carriage relative to the support structure substantially along a longitudinal axis of the linear actuator. 1. A linear actuator comprisinga support structure;at least one magnet provided on the support structure;a carriage;at least one coil arrangement provided around the carriage; anda spring arrangement operatively connected between the support structure and the carriage to urge the carriage towards a predetermined position relative to the support structure;wherein a part of one of the support structure and the carriage is received by a part of the other of the support structure and carriage so as to constrain motion of the carriage relative to the support structure substantially along a longitudinal axis of the linear actuator.2. The linear actuator of claim 1 , wherein the support structure comprises at least one rod.3. The linear actuator of claim 1 , wherein the support structure comprises two rods that are respectively secured to opposing faces of the magnet and extend in opposing directions away from the magnet.4. The linear actuator of claim 2 , wherein there is at least one mounting plate between the rod(s) and the magnet.5. The linear actuator of claim 4 , wherein the at least one mounting plate is iron.6. The linear actuator of claim 1 , wherein the support structure further comprises a tube around the carriage.7. The linear actuator of claim 6 , wherein there is an air gap between the tube and the carriage.8. The linear actuator of ...

Подробнее
Номер записи: 75
03-06-2021 дата публикации

Device for the intermittent operation of the cooling fan of three-phase induction motors, controlled by the temperature of the stator winding

Номер: US20210167665A1
Автор: Andrés Gabriel Sanchez Comas, Juan José Cabello Eras, Vladimir Sousa Santos
Принадлежит: Corporación Universidad De La Costa

The object of the present invention is to provide a device that allows the intermittent operation of the cooling fan, with a mechanism controlled by the stator temperature, to reduce whipping losses and improve the operating efficiency of three-phase induction motors for industrial use, such as those that operate pumps, compressors, conveyors, fans, welding machines and die cutters, among others.

Подробнее
Номер записи: 76
18-05-2017 дата публикации

Brushless motor

Номер: US20170141646A1
Автор: Masahiro Nishidate
Принадлежит: Tokyo Parts Ind Co Ltd

The bottom end of a rotary shaft contacts a cover part of a cover member, while the top end of the rotary shaft protrudes upwards from a retaining plate. A planar first washer member, which is made from a hard material, is fastened to the rotary shaft, between a bottom plate of a rotor case and an oil-impregnated bearing. The first washer member is disposed without contact with the bottom plate of the rotor case and the oil-impregnated bearing.

Подробнее
Номер записи: 77
18-05-2017 дата публикации

An electric machine

Номер: US20170141652A1
Автор: Janne Ikonen
Принадлежит: ABB Schweiz AG

The electric machine comprises a cylindrical rotor with axial first air channels and a stator with axial second air channels. The outer surface of the stator is provided with cooling fins. There is a first air chamber at a first end of the rotor, a second air chamber and an adjacent third air chamber at a second end of the rotor. A first fan circulates internal air from the first axial air channels to the second air channels in a closed air circulation within the electric machine. A second fan blows external cooling air from the outside of the electric machine through the third air chamber and from the outlet opening of the third air chamber along the outer surface of the stator. The number of second air channels in the stator is three.

Подробнее
Номер записи: 78
18-05-2017 дата публикации

Brushless motor

Номер: US20170141662A1
Автор: Masahiro Nishidate
Принадлежит: Tokyo Parts Ind Co Ltd

A cover member has a through hole in the center. A rotary shaft protrudes upward from the through hole, without contact with the cover member. A first washer member, which is made from a hard material, is fastened to the rotary shaft, between the rotor case and the cover member. The first washer member is disposed without contact with the rotor case and the cover member.

Подробнее
Номер записи: 79
10-06-2021 дата публикации

ELECTRONIC VALVE FOR AN ELECTRIC MOTOR

Номер: US20210175768A1
Автор: WINKELMEYR Felix
Принадлежит: Audi AG

A valve for an electric vehicle for draining condensation from an electric motor, wherein the valve is designed to be controllable electronically. Furthermore, the present disclosure relates to an electric motor including at least one valve as described above. 1. A valve comprising:the valve for an electric vehicle for draining condensation from an electric motor wherein the valve is designed to be controllable electronically.2. The valve according to claim 1 , wherein the electronic valve is set up to be adjustable from a first position to at least one second position claim 1 , wherein the electronic valve is set up to seal the electric motor in the first position and to discharge condensation from the electric motor in the second position.3. The valve according to claim 1 , wherein the electronic valve is formed on the bottom of the electric motor.4. The valve according to claim 2 , wherein the electronic valve is set up to automatically switch to the second position each time the electric motor starts claim 2 , and to discharge condensation automatically.5. The valve according to claim 1 , wherein the electronic valve is set up to be switchable at intervals claim 1 , where the intervals are preset or manually adjustable.6. The valve according to claim 1 , wherein the electronic valve is controllable based on a quantity of water claim 1 , in particular condensation claim 1 , detected by at least one sensor arranged in the electric motor.7. An electric motor for an electric vehicle comprising:at least one electronic valve for draining condensation from an electric motor wherein the valve is designed to be controllable electronically.8. The electric motor according to claim 7 , wherein the electric motor comprises at least one sensor which is set up for detecting a quantity of water claim 7 , in particular a quantity of condensation.9. The electric motor according to claim 8 , the electronic valve is controllable based on a level of condensation detected by the at ...

Подробнее
Номер записи: 80
10-06-2021 дата публикации

Electric Motor for Operating in Conductive Fluids and Related Method

Номер: US20210175769A1
Автор: DYAS Scott Patrick, SAGAR Aaryan, SAGAR Akshay, WELLS Peter Nicholas, WENG Haixiao, Yang Libo
Принадлежит: MS Directional, LLC

The present disclosure provides an electrical motor configured to operate with conductive fluids internal to the motor without short-circuiting. One embodiment is a telemetry modulator that can include the electric motor and a valve coupled with the electric motor. The valve has a valve stator and a valve rotor, and the electric motor can be used to control accurately the valve opening and closing with valve rotor rotation. The valve rotor can rotate continuously or in oscillations to generate a continuous pressure wave, such as for MWD/LWD communication. The electric motor is configured to allow drilling mud to flow into the electric motor without short-circuiting by the motor stator and/or motor rotor having an electric motor winding and a termination for the winding, the winding and termination having a nonconductive coating. The electric motor can be used in other applications inside and outside the oil field environment. 1. An electric motor system , comprising:an electric motor rotor and an electric motor stator disposed circumferentially with the electric motor rotor; and at least one of the motor stator and motor rotor comprising an electric motor winding and a termination for the winding, the winding and termination having a nonconductive coating;wherein the electric motor is configured to allow a conductive liquid to contact the electric motor rotor and the electric motor stator without short-circuiting the electric motor.2. The system of claim 1 , further comprising a motor housing having at least one inlet port and at least one outlet port configured for the conductive fluid to flow through the electric motor in contact with the motor rotor and the motor stator.3. The system of claim 1 , further comprising a motor housing having an inlet port configured for the conductive fluid to flow into the electric motor and to create a pressure balance of the conductive fluid within the electric motor compared to the conductive fluid outside the electric motor.4. ...

Подробнее
Номер записи: 81
10-06-2021 дата публикации

GENSET ENCLOSURE WITH AIR DEFLECTOR ASSEMBLY

Номер: US20210175774A1
Автор: More Shashikant Ramdas
Принадлежит: Cummins Power Generation IP, Inc.

A genset includes an enclosure and a deflector assembly. The enclosure defines an at least partially enclosed space and a ventilation air opening that fluidly couples the enclosed space with an environment surrounding the enclosure. The deflector assembly includes a deflector disposed within the enclosed space and an angle driver. The angle driver is structured to adjust an angular position of the deflector relative to the ventilation air opening to minimize exported noise. 1. A genset , comprising:an enclosure defining an at least partially enclosed space and a ventilation air opening, the ventilation air opening fluidly coupling the enclosed space with an environment surrounding the enclosure; and a deflector disposed within the enclosed space; and', 'an angle driver structured to adjust an angular position of the deflector relative to the ventilation air opening., 'a deflector assembly, comprising2. The genset of claim 1 , wherein the angle driver is structured to vary the angular position of the deflector relative to the ventilation air opening within a range between approximately 0° and 90°.3. The genset of claim 1 , wherein the deflector assembly further comprises a length driver structured to vary a distance that the deflector extends into a flow path of the ventilation air opening.4. The genset of claim 3 , wherein the length driver is structured to vary the distance within a range between approximately 0 mm and 3000 mm.5. The genset of claim 1 , wherein the deflector is formed in a plurality of sections that are coupled to one another such that an end of a first section of the plurality of sections is coupled to an end of a second section of the plurality of sections.6. The genset of claim 1 , further comprising a controller configured to control the angle driver automatically based on feedback from at least one of a fan speed sensor claim 1 , a pressure measurement sensor claim 1 , an engine rotational speed sensor claim 1 , or a sound sensor.7. A method ...

Подробнее
Номер записи: 82
01-06-2017 дата публикации

LEVELING PLATE AND THRUST BEARING DEVICE USING THE SAME

Номер: US20170152888A1
Автор: KAWAAI Yugi
Принадлежит:

A leveling plate including a main body and an end protrusion. The end protrusion is provided at both ends in a longer side direction of the main body, and protrudes from the main body in a thickness direction, the end protrusion having an end circumferential surface whose central axis extends in parallel with a shorter side direction of the main body. 1. A leveling plate , comprising:a main body including a surface extending in first and second directions orthogonal to each other; andan end protrusion which is provided respectively at both ends of the main body in the first direction, and protrudes from the main body in a third direction perpendicular to the surface, the end protrusion having an end circumferential surface whose central axis extends in the second direction of the main body.2. The leveling plate according to claim 1 , further comprising:an intermediate protrusion which is provided between the end protrusions of the main body in the first direction, and protrudes from the main body to an opposite side of the end protrusions in the third direction, the intermediate protrusion having an intermediate circumferential surface whose central axis extends in the second direction of the main body.3. The leveling plate according to claim 2 , whereinthe end protrusions are provided symmetrically across the intermediate protrusion, and extend in parallel with the intermediate protrusion.4. The leveling plate according to wherein{'b': 1', '2', '1', '2, 'letting an imaginary line connecting a central axis of the intermediate circumferential surface with a central axis of the end circumferential surface be a line L, and an imaginary line which is tangent to each tip end of the end protrusions be a line L in a section perpendicular to the central axis of the end protrusion, an angle α formed by the line L and the line L is α≦55°.'}5. The leveling plate according to claim 2 , wherein{'b': 1', '2', '1', '2, 'letting a radius of the intermediate circumferential surface ...

Подробнее
Номер записи: 83
15-09-2022 дата публикации

ELECTRIC MACHINE ASSEMBLY

Номер: US20220294307A1
Автор: Crosson Jeffrey William
Принадлежит:

An electric machine assembly includes a housing having a first portion and a second portion. The electric machine assembly also includes a midframe coupled between the first and second portions such that the mid-frame and the first portion partially define a first compartment and such that the mid-frame and the second portion partially define a second compartment. A terminal box is coupled to the mid-frame and configured to house a first plurality of electrical components. A stator is positioned within the first compartment and a second plurality of electrical components positioned with the second compartment. The stator and the second plurality of electrical components are electrically coupled by a first plurality of wires extending through the mid-frame, and the first plurality of electrical components are electrically coupled to the second plurality of electrical components by a second plurality of wires extending through the second compartment and into the terminal box. 1. An electric machine assembly comprising:a housing comprising a first portion and a second portion;a midframe coupled between said first portion and said second portion such that said mid-frame and said first portion combine to at least partially define a first compartment and such that said mid-frame and said second portion combine to at least partially define a second compartment;a terminal box coupled to said mid-frame and configured to house a first plurality of electrical components;a stator positioned within said first compartment;a second plurality of electrical components positioned with said second compartment, wherein said stator and said second plurality of electrical components are electrically coupled by first plurality of wires extending through said mid-frame, and wherein said first plurality of electrical components are electrically coupled to said second plurality of electrical components by a second plurality of wires extending through the second compartment and into the ...

Подробнее
Номер записи: 84
17-06-2021 дата публикации

ROTARY ACTUATOR

Номер: US20210184536A1
Автор: Ito Taku, KADO Hiroyuki
Принадлежит:

A rotary actuator includes: an electric motor; a case that receives the electric motor; a rotatable body that is configured to transmit an output of the electric motor to an outside of the case; a seal member that seals between the rotatable body and the case; and a labyrinth forming portion that forms a labyrinth space in a path that extends from an outside space of the case to a sealing point of the rotatable body, at which the rotatable body is sealed by the seal member. 1. A rotary actuator as a drive device of a shift-by-wire system for a vehicle , comprising:an electric motor;a case that receives the electric motor;a rotatable body that is configured to transmit an output of the electric motor to an outside of the case;a seal member that seals between the rotatable body and the case; anda labyrinth forming portion that forms a labyrinth space in a path that extends from an outside space of the case to a sealing point of the rotatable body, at which the rotatable body is sealed by the seal member, wherein:the labyrinth forming portion includes a tubular portion that is placed on the outside space side of the sealing point and is on a radially outer side of the rotatable body;the tubular portion includes a drain passage, wherein the drain passage is a space in an inside of the tubular portion and communicates a space, which is located between the sealing point and the labyrinth space, to the outside space; andthe drain passage is a passage in a form of a labyrinth.2. The rotary actuator according to claim 1 , wherein:the tubular portion includes a small diameter tube and a large diameter tube while the large diameter tube is fitted to an outer side of the small diameter tube; an inner drain hole that extends through the small diameter tube from an inside to an outside of the small diameter tube;', 'an outer drain hole that extends through the large diameter tube from an inside to an outside of the large diameter tube; and', 'a drain groove that is formed at an ...

Подробнее
Номер записи: 85
17-06-2021 дата публикации

ACTUATOR

Номер: US20210184537A1
Автор: Hofmann Benjamin
Принадлежит: AUMA Riester GmbH & Co. KG

An actuator () is provided in which the actuator housing () has at least one actuator housing part () or (). At least one component support () or () which serves as a support structure for at least one functional element of the actuator is disposed within the actuator housing (). Furthermore, the at least one actuator housing part () or () is fastened to the component support () or (). 11. An actuator () comprising:{'b': 2', '3', '4, 'an actuator housing () which comprises at least one actuator housing part (, ); and'}{'b': 5', '6', '2', '1', '3', '4, 'at least one component support (, ) disposed within the actuator housing () and which supports at least one functional element of the actuator (), and to which the at least one actuator housing part (, ) is fastened.'}22627. The actuator as claimed in claim 1 , wherein the at least one actuator housing part comprises first and second pot-shaped actuator housing parts claim 1 , and the at least one functional element of the actuator comprises at least one of a drive motor () or a gear unit ().3134. The actuator () as claimed in claim 1 , wherein the at least one actuator housing part ( claim 1 , ) is at least one of formed of a thin-walled material having a material thickness of at most four millimeters claim 1 , sheet metal claim 1 , or plastics material.41567342734. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) includes a fastening flange () to which the at least one actuator housing part ( claim 1 , ) of the actuator housing () is fastened claim 1 , and a seal is disposed between the fastening flange () and the at least one actuator housing part ( claim 1 , ).51568342. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) is disposed on a pot base () of the at least one actuator housing part ( claim 1 , ) of the actuator housing ().615691. The actuator () as claimed in claim 1 , wherein the component support ( claim 1 , ) at least one of forms or ...

Подробнее
Номер записи: 86
17-06-2021 дата публикации

Electric rotating machine

Номер: US20210184541A1
Автор: Hiroyuki Higashino, Jun Tahara, Naohide Maeda, Tadashi Murakami, Toshiyuki Yoshizawa, Yuki Hidaka
Принадлежит: Mitsubishi Electric Corp

In order to provide an electric rotating machine which is inexpensive and miniaturized while improving cooling performance of a rotor, a power supply unit is fixed on the axial side of a shaft in a bracket and a permanent magnet is arranged adjacent to the advancing side in the rotation direction of a claw-shaped magnetic pole portion of a magnetic pole on the side where the power supply unit is provided.

Подробнее
Номер записи: 87
22-09-2022 дата публикации

GENERATOR SET

Номер: US20220298963A1
Автор: FERGUSON Lee, Graham Andrew, MUSICK Eric, Thompson Michael
Принадлежит: Caterpillar (NI) Limited

A generator set system includes an engine and an alternator. Control panels and switchboards for operating the generator set system are integrated into a frame/enclosure that is positioned around/above the alternator. The panels and switchboards are positioned on the sides of the enclosure to allow user access. 1. A containerised generator set system , comprising:an engine operatively coupled to an alternator, the alternator comprising output terminals;a plurality of batteries;an engine starting and battery management system panel configured to selectively charge the battery and to start the engine;a genset control system panel configured to control operation of the generator set system;a circuit breaker panel configured to selectively isolate the alternator output terminals;a power protection system panel;a frame into which the panels are integrated to form an enclosure, the enclosure being provided adjacent at least two sides of the alternator; anda container that houses the engine, the alternator, the batteries, and the enclosure.2. The system of claim 1 , wherein the enclosure is provided adjacent three sides of the alternator and which surrounds the alternator.3. The system of claim 1 , wherein the enclosure is disposed around a barrel of the alternator.4. The system of claim 3 , wherein the engine and the alternator are positioned along a longitudinal axis of the container.5. The system of claim 4 , wherein the container comprises a pair of opposed side walls and a pair of opposed end walls claim 4 , the engine and the alternator being spaced from the pair of side walls and at least one end wall to define an access path.6. The system of claim 4 , wherein the container further comprises an air inlet system and an air outlet system provided at opposing ends of the container claim 4 , wherein the engine is positioned adjacent the air outlet system and the alternator is positioned adjacent the air inlet system.7. The system of claim 1 , wherein the enclosure ...

Подробнее
Номер записи: 88
14-05-2020 дата публикации

MINIATURE HANDHELD ELECTRIC TRACTION DEVICE

Номер: US20200148513A1
Автор: TANG Kan, TANG Liangdao, XIAO Keqian, ZHANG Chunxiang, ZHANG Guogang, ZHANG Renyi
Принадлежит:

A miniature handheld electric traction device including a shell, a power supply part, a power motor, a reduction gear set, a braking part and a winding drum, wherein the power motor, the reduction gear set and the winding drum are arranged in the shell; the power motor is linked with the winding drum through the reduction gear set; a surface of the winding drum is wound with a traction rope; the reduction gear set includes a planetary gear; the sun gear of the planetary gear is coaxial with the winding drum; the power motor or the motor shaft of the power motor is inserted into the inner ring of the winding drum; the motor shaft is linked with the planetary gear. 1. A miniature handheld electric traction device comprising a shell , a power supply part and a power motor , a reduction gear set , a brake part and a winding drum; the power motor , the reduction gear set and the winding drum arranged in the shell; the power supply part connected with the power motor; a control circuit arranged between the power supply part and the power motor; the power motor linked with the winding drum through the reduction gear set; a traction rope wound on a surface of the winding drum; one end of the traction rope being a free end; and a hook arranged outside the shell; wherein the reduction gear set comprises a planetary gear , a sun gear of the planetary gear is coaxial with the winding drum , the winding drum is in transmission connection with the planetary gear , and a motor shaft of the power motor is linked with the planetary gear; the brake part is arranged on the reduction gear set and comprises a few-tooth-difference planetary gear , and a sun gear of the few-tooth-difference planetary gear is coaxial with the sun gear of the planetary gear; an inner cylinder sleeve is arranged in the shell; the power motor is fixed in the inner cylinder sleeve of the shell; a connecting shaft sleeve is arranged on the motor shaft of the power motor; an annular space is formed between the ...

Подробнее
Номер записи: 89
09-06-2016 дата публикации

Reducing bearing forces in an electrical machine

Номер: US20160164371A1
Автор: David Rodger, Hong Cheng Lai
Принадлежит: Slopesafe Ltd

A rotary coupling ( 10 ) comprises a rotatable set of primary gear teeth ( 20 ), a damper ( 14 ) having a set of complementary secondary gear teeth ( 52 ) engagable with the primary gear teeth ( 20 ), and a damper guide, preferably being a damper channel ( 38 ), associated with the hub body ( 16 ) along which the damper ( 14 ) can move. To damp rotation of the primary gear teeth ( 20 ), the secondary gear teeth ( 52 ) are movable into and out of engagement with the primary gear teeth ( 20 ) dependent on a tilt of the damper guide ( 38 ). A method of damping rotational movement of a rotatable element, preferably being a wheel, and preferably using such a rotary coupling ( 10 ), is also provided.

Подробнее
Номер записи: 90
24-06-2021 дата публикации

BEARING AND SHAFT ARRANGEMENT FOR ELECTRIC DRIVE UNIT

Номер: US20210188067A1
Автор: Burgman Boris, Deneszczuk Gregory, Gayney Jack
Принадлежит:

A bearing and shaft arrangement of an automobile vehicle electric drive unit includes a gearbox. A first electric motor within the gearbox is engaged with and axially rotates a first shaft within the gearbox. A second electric motor within the gearbox is engaged with and axially rotates a second shaft within the gearbox. A first roller bearing assembly supports the first shaft to a first structural member of the gearbox. A second roller bearing assembly supports the second shaft to the first structural member of the gearbox. A thrust bearing is positioned between the first roller bearing assembly and the second roller bearing assembly and directly contacts the first shaft and the second shaft in a drive mode and reacts a first axial load of the first shaft and a second axial load of the second shaft directed toward the first axial load. 1. A bearing and shaft arrangement of an automobile vehicle electric drive unit , comprising:a gearbox;a first electric motor operating to axially rotate a first shaft within the gearbox;a second electric motor operating to axially rotate a second shaft within the gearbox; anda reaction bearing member positioned between and directly contacted by the first shaft and the second shaft in a drive mode and reacting a first axial load of the first shaft and a second axial load of the second shaft directed toward the first axial load.2. The bearing and shaft arrangement of the automobile vehicle electric drive unit of claim 1 , the reaction bearing member being a thrust bearing.3. The bearing and shaft arrangement of the automobile vehicle electric drive unit of claim 2 , further including:a first motor shaft rotated by operation of the first electric motor; anda first transfer shaft engaged with and axially rotated by the first motor shaft, wherein the first transfer shaft is engaged with and directly axially rotates the first shaft.4. The bearing and shaft arrangement of the automobile vehicle electric drive unit of claim 3 , further ...

Подробнее
Номер записи: 91
08-06-2017 дата публикации

Brush holder apparatus

Номер: US20170162994A1
Автор: Albert Eugene Steinbach, Michael David Kuban, Paul August Quail
Принадлежит: General Electric Co

A brush holder apparatus for receiving a brush, includes a support member, and at least one box member affixed to the support member. The box member includes a slot extending through a side of the box member. At least one cam member is operably connected to the support member. The cam member includes a rounded surface partially extending through the slot. The rounded surface is configured to directly contact the brush while the cam member retains the brush. The cam member is configured to move within the slot, and the cam member is configured to retain the brush against an inner surface of the box member. The at least one cam member is configured for manual manipulation (e.g., by hand) so that the brush can be removed from the at least one box member without the use of any tools.

Подробнее
Номер записи: 92
23-05-2019 дата публикации

Electric motor and stator cooling apparatus

Номер: US20190157923A1
Автор: David Crecelius, James P. Downs, Jeffrey J. Ronning, John Morgante, Peter Fischer
Принадлежит: American Axle and Manufacturing Inc

An electric motor can include a stator body defining fluid channels extending axially for fluid communication between axial ends of the stator body. Conductive windings can form first loops extending axially outward from the first end of the stator body and second loops extending axially outward from the second end of the stator body. A first cap can be coupled to the first end of the stator body and can include a first wall. The first wall can be between the first loops and the channels. Pins can extend from a side of the first wall that is opposite the first loops. The second cap can be coupled to the second end of the stator body and include a second wall. The second wall can be between the second loops and the channels. Pins can extend from a side of the second wall that is opposite the second loops.

Подробнее
Номер записи: 93
23-05-2019 дата публикации

ELECTRIC MOTOR INCLUDING TERMINAL BOX AND MACHINE TOOL

Номер: US20190157937A1
Автор: Mukai Yasuhito
Принадлежит: FANUC Corporation

An electric motor including a structure that prevents intrusion of a foreign substance into the electric motor, and a machine tool including the electric motor. A hollow tube that fluidly connects an inner portion of a terminal box and an outer surface of a front flange is provided, and a through hole extending from the outer surface to a front space is formed. The inner portion of the terminal box and the front space communicate with each other through a flow path that is fluidly cut off from an interior space of the machine or other such machine tool and air in the terminal box automatically flows into the front space through the flow path in accordance with rotation of a rotor as described above. Also, the terminal box is fluidly connected with an amplifier provided outside of the machine through an air passage. 1. An electric motor comprising:a stator;a rotor including a rotating shaft rotatable about an axis with respect to the stator;a bearing configured to rotatably support the rotating shaft;a housing configured to support the bearing and define a space adjacent to the bearing on an outer side in a direction of the axis; anda terminal box for a power line connected to the electric motor,wherein an inner portion of the terminal box and the space communicate with each other through a flow path provided on an outer side of the stator, and air in the terminal box automatically flows into the space through the flow path in accordance with a rotation of the rotor.2. The electric motor of claim 1 , wherein the electric motor includes a labyrinth member attached to a portion of the rotating shaft positioned on an outer side of the bearing in the direction of the axis and configured to define a part of the space.3. The electric motor of claim 1 , wherein the terminal box is connected to an air passage that doubles as a conduit for the power line.4. The electric motor of claim 1 , wherein the terminal box is connected to a through hole formed in the housing claim 1 , ...

Подробнее
Номер записи: 94
24-06-2021 дата публикации

Large high reliability air-cooled motor with optimal ventilation system

Номер: US20210194407A1
Автор: Baoyun QIU, Cai Zhang, Chenglong XUE, Di Liu, Fangling Zhao, Liming Tang, Mengfan XU, Qiang Guo, Xia Lu
Принадлежит: Yangzhou University

A large high reliability air-cooled motor with an optimal ventilation system belongs to the technical field of reliability of electromechanical power equipment, and includes calculating a flow resistance of the ventilation system and selecting the two ventilators, determining a ventilation flow rate, calculating a heating quantity and temperature rises of the motor, determining main influence factors of the temperature rise, determining random numerical characteristics of main influence factors, generating possible minimum and maximum values of running temperatures under different environment temperatures, calculating the reliability degree of the running temperature rise of the motor, creating relations between the motor temperature rise reliability and the cross-sectional area of a ventilation slot at multiple environment temperatures when one ventilator and two ventilators running respectively, and providing a motor with high reliability of temperature rise by using optimal ventilation slot area and choosing ventilators and the number in operation.

Подробнее
Номер записи: 95
21-05-2020 дата публикации

ELECTRIC SUBMERSIBLE PUMPING UNIT

Номер: US20200157925A1
Автор: Crane Mitchell Lee, Gualdron Jose Mauricio Oviedo
Принадлежит: Extract Production Services, LLC

An electric submersible pump assembly with integral heat exchanger, high-speed self-aligning bearings, and dual bearing thrust chamber is described. The described pump assembly, modules, and components may be used for operating an electric submersible pump at high speeds as well as over a wide range of speeds and flowrates without replacing downhole equipment. The described pump assembly may be shorter than comparable pump assemblies and may be assembled offsite, thereby leading to faster and easier installation with less down time. By operating over a wide range of speeds, the disclosed pump assembly allows the operator to reduce overall inventory, reduce down time for the well, and avoid other complications associated with replacing a pump assembly or other downhole components. 1. An electric submersible pump assembly comprising:an electric submersible pump;a permanent magnet motor configured to operate at greater than 3000 RPM, wherein the motor is operably connected to the electric submersible pump;an impeller;a central heat exchanger;a lower heat exchanger; anda seal section located between the motor and the pump, the seal section comprising a thrust chamber, a seal section impeller, an interior seal housing, an exterior seal housing, and a seal lubricant return path, wherein the interior seal housing is disposed within the exterior seal housing and defines a seal lubricant pathway therebetween, the seal lubricant pathway in fluid communication with the seal lubricant return path and the seal lubricant return path in fluid communication with the thrust chamber; the seal section impeller configured to drive the lubricant into the seal lubricant pathway;wherein the central heat exchanger comprises a central exterior housing, a central interior housing, and a central lubricant return tube, wherein the central interior housing is disposed within the central exterior housing and defines a central heat exchanger lubricant pathway therebetween, and wherein the central ...

Подробнее
Номер записи: 96
14-06-2018 дата публикации

Stator unit, motor, and method of manufacturing stator unit

Номер: US20180166942A1
Автор: Hideki Aoi, Jumpei Kitamura, Junya Matsuyama, Kazuhiro Ono, Megumi MICHISHITA, Sakae NOGAMI
Принадлежит: Nidec Corp

A stator unit included in a motor includes a base member, an armature, a circuit board, and a mold resin portion. The base member extends substantially perpendicularly to a vertically extending center axis. The armature and the circuit board are positioned above the base member. The circuit board is electrically connected to the armature. The mold resin portion covers the armature and the circuit board. In a process of forming the mold resin portion, the base member is firstly supported by a first mold.

Подробнее
Номер записи: 97
15-06-2017 дата публикации

MOTOR VEHICLE AUXILIARY ASSEMBLY ELECTRIC MOTOR

Номер: US20170170701A1
Автор: HAENSCH WOLFGANG, HARTZENDORF JOERG, Rathke Ronald, WABERSKI MAIK, Weinert Michael, Wienecke Thomas
Принадлежит: PIERBURG PUMP TECHNOLOGY GMBH

A motor vehicle auxiliary assembly electric motor includes a motor stator with stator coils. The motor stator is electronically commutated. A control electronics system drives the stator coils and is potted in a cast body. An electronics chamber is closed-off and has the control electronics system and the cast body arranged therein. A gas chamber is arranged adjacent to the cast body. A pressure equalization element ventilates and vents the gas chamber. An aeration shaft is arranged to pass through the cast body and fluidically connects the gas chamber to the atmosphere. The pressure equalization element is fluidically associated with the aeration shaft. 19-. (canceled)10. A motor vehicle auxiliary assembly electric motor , comprising a motor stator comprising stator coils , the motor stator configured to be electronically commutated;a control electronics system configured to drive the stator coils;a cast body, the control electronics system being potted in the cast body;an electronics chamber configured to be closed-off and to have the control electronics system and the cast body be arranged therein;a gas chamber arranged adjacent to the cast body;a pressure equalization element configured to ventilate and vent the gas chamber; andan aeration shaft arranged to pass through the cast body and which is configured to fluidically connect the gas chamber to the atmosphere, the pressure equalization element being fluidically associated with the aeration shaft.11. The motor vehicle auxiliary assembly electric motor as recited in claim 10 , further comprising:a case cover to which the aeration shaft is fastened, the case cover being configured to close the electronics chamber.12. The motor vehicle auxiliary assembly electric motor as recited in claim 11 , wherein claim 11 ,the case cover comprises a basic plane, andthe aeration shaft is further configured to project substantially vertically from the basic plane of the case cover into the electronics chamber.13. The motor ...

Подробнее
Номер записи: 98
30-05-2019 дата публикации

GENERATOR STATORS AND METHODS OF MAKING GENERATOR STATORS

Номер: US20190165636A1
Автор: Callan Kimberly R., Rittmeyer Gregory Alan
Принадлежит:

A generator stator includes a housing arranged along a rotation axis, a sleeve seated in the housing and extending about the rotation axis, and a shim. The shim is arranged between the sleeve and the housing and fixes the sleeve radially relative to the housing to reduce diameter of a housing bore defined by the housing. Generators and methods of making generator stators are also described. 1. A generator stator , comprising:a housing arranged along a rotation axis;a sleeve seated in the housing and extending about the rotation axis; anda shim arranged between the sleeve and the housing, wherein the shim fixes the sleeve radially relative to the housing to reduce diameter of a housing bore defined by the stator housing.2. The stator as recited in claim 1 , wherein the shim has a first circumference and a second circumference claim 1 , the second circumference being smaller than the first circumference.3. The stator as recited in claim 1 , wherein the shim has a slot extending longitudinally along a length of the shim claim 1 , laterally opposed edges of the shim spaced apart from one another.4. The stator as recited in claim 1 , wherein the shim has a slot extending longitudinally along a length of the shim claim 1 , laterally opposed edges of the shim spaced abutting one another.5. The stator as recited in claim 1 , wherein the housing defines a coolant circuit with at least one outlet in fluid communication with the housing bore claim 1 , wherein a slot extending longitudinally along the shim is arranged on a side of the rotation axis opposite the coolant port outlet.6. The stator as recited in claim 1 , wherein the housing defines a relief cut bounding the housing bore.7. The stator as recited in claim 1 , wherein the housing does not include a relief cut bounding the housing bore.8. The stator as recited in claim 1 , wherein the shim includes a material having a hardness that is greater than a hardness of a material forming the housing.9. The stator as recited ...

Подробнее
Номер записи: 99
30-05-2019 дата публикации

Motor, blowing device, and vacuum cleaner

Номер: US20190165651A1
Автор: Sakae Kishi, Takumi IWAO, Tomoyoshi Sawada
Принадлежит: Nidec Corp

A motor including a shaft that is disposed along a vertically extending central axis in which the shaft rotates about the central axis, a magnet and a cooling member that are fixed to the shaft, a stator disposed so as to oppose the magnet in a radial direction, the stator including a coil, a motor housing that accommodates therein the shaft, the magnet, the stator, and the cooling member. The cooling member opposes, in the axial direction, the magnet directly or with another member interposed therebetween. A plurality of protruded portions are provided on the cooling member in which the plurality of protruded portions are protruded in the radial direction and are disposed in a circumferential direction.

Подробнее
Номер записи: 100