ELECTROMAGNET BOARD
The present invention refers to blackboard relates to search, the coil a magnetic powder user desired character, picture, pattern and number of writing board can be displayed on a electromagnet blackboard to stand-alone are disclosed. Generally, lecture, Seminar or Conference undergo acceptance, Institute a banner or the like teacher, mobile or Conference attendees than to perform the blackboard and chalk or white board and board marker allows for description hereinafter etc. etc.. Placed between the first and, if due to scattering of a blackboard and chalk made of chalk during lime powder performed on health people into lime door number can be generate. In particular, in the case of the spot in the classroom teacher school student long lime powder fatal respiratory diseases due to generate been number point at the door. In addition, a relatively large time obtained by adding a writing was thick with an and to negate the blackboard to white board demands great trouble to keep down and, blackboard to complete writing previously in use long time white board content without use of the local color remains difficult at the memory extent so eventually blackboard to board the disorderliness. In addition, in the case of lime powder is dispersed into the blackboard and chalk white board and board marker such as but not, board marker when the period of time since the nozzle holes, additional cost can be consumed in the disclosed. As well as, chalk since the blackboard and chalk as the consumption even in case consumable also is provided to the memory section. In order to solve such door number point number was not using electromagnet magnet to the blackboard. For example, panel formed with a plurality of compartment, each metabolizing iron powder injection, magnet pen on a panel or the like is disposed on the corresponding contact points of contact of the synthetic resin material in order of iron that are attracted to the panel has been attached to the writing display. However, the iron powder is present prior art may border between neighboring compartment is used, panel is displayed does not signal based writing on electronic blackboard it conceives the gel lowering resolution of the dielectric part. In order to solve the present invention refers to said door number point such as battery is provided, the purpose of the invention such as the lime powder without harmful flour can be used semi-permanently without a cost electromagnet under public affairs opaque number are disclosed. Another object of the present invention writing on conventional panel number can be a stand-alone does not opaque under public affairs electromagnet it conceives the gel region is displayed number are disclosed. The present invention according to the blackboard was electromagnet for achieving said purpose, body; magnetic pen; magnetic powder in connection with said body; said body is connected to the front side, said magnetic pen movement track along said magnetic pen for writing magnetic powder is attached externally displaying said writing panel; said body inner spaced-apart side-by-side in a horizontal direction arranged electromagnet array consisting of a plurality of number 1 number 1 electromagnet; said body height direction over the back side of number 2 number 2 electromagnet array consisting of a plurality of arranged spaced-apart side face of the electromagnet; said electromagnet arranged spaced-apart side-by-side in a horizontal direction on the upper side of body consisting of a plurality of number 3 number 3 electromagnet array; said electromagnet said number 1 electromagnet array writing panel closest to the number 1 (hereinafter, 'number 1a electromagnet' referred to by) said number 3 from electromagnet array located at a final stage number 3 (hereinafter, 'number 3a electromagnet' by referred to as) direction electromagnet, said electromagnet each number 1, number 2 is an electromagnet sequentially turning on/off (Off) electromagnet and number 3 (On) and number to number plower water level on both sides; said number of said circuit of fluorescent lamp it freezes, water level number, said number 1, number 2 and number 3 electromagnet array from said number 1a through said number 3a electromagnet side that are conveyed said electromagnet magnetic powder; and said electromagnet reaches said number 3a to constantly maintain magnetic powder (hereinafter, ' magnetic powder reaches' referred to by) a blowing fan side, said blower including a dispersion of magnetic powder characterized in front reaches. The present invention according to the blackboard electromagnet, lime powder and that the harmful powder such as use on door includes a plurality of additional number allows health while preventing replacement is substantially along the axis of the can be equal to or less than. The present invention according to the blackboard electromagnet, electromagnet blackboard by adding a writing content is displayed collectively able to negate the cap only to maximize the effect described. The present invention according to the electromagnet blackboard, writing on conventional panel is displayed does not it conceives the gel along front and rear region, electromagnet blackboard can be improving resolution of equal to or less than. Figure 1 shows a electromagnet for controlling appearance also shown in the present invention according to sensors mounted thereon. Figure 2 shows a 'K1' direction cross-sectional drawing of Figure 1. In the embodiment according to Figure 3 shows a internal configuration of the present invention also one electromagnet for controlling. Figure 4 shows a schematic diagram of the device of the present invention also one in the embodiment according to erase magnetization. In the present invention used in the embodiment is only used to account for specific terms, the present invention intending to be define is endured. It is apparent that a single representation of the differently in order not providing language translators, comprising plurality of representation. In the specification, the term "comprising" or "having disclosed" specification of articles feature, number, step, operation, components, parts or specify a combination not present included, another aspect of one or more moveable number, step, operation, component, component or a combination of these is understood to presence of or additionally pre-times those possibility should not number. In addition, in the specification, "- - on or on top" of means in which a multi-located above or below the object, not necessarily meaning that the gravity direction is positioned on the phase reference are not correct. In addition, region, such as plate parts which are "on top on or" when it, is another area of said "on or directly on top" when in contact or spaced from another when comprises a unit as well as its intermediate portion. In addition, in the specification, one component with other components or provides "connected" or is "connected" when, said one component is said directly connected with other components or may be connected either directly or, particularly opposite substrate does not exist in an ideal, connected or connected to another via intermediate components might lead to it will will be. In addition, in the specification, number 1, number 2 describes various components such as term can be used but, in terms of said components are defined by said back like. Components are mounted to one of said terms are used only distinguished from other components of the object. In hereinafter, with reference to the attached drawing of the present invention preferred embodiment, advantages and detailed with respect to the other. Figure 1 shows a perspective view and an electromagnet for controlling the present invention according to appearance also shown, Figure 2 shows a 'K1' cross-sectional drawing direction and, in the embodiment according to Figure 3 of the present invention one electromagnet for controlling internal configuration of Figure 1 are disclosed. With reference also to the 3 1 also, the present invention according to electromagnet blackboard magnetic pen, body (10), writing panel (20), number 1 electromagnet array (30), number 2 electromagnet array (40), electromagnet array number 3 (45), control section (not shown) number, magnetic powder (1), blower (50), guide semi (60) and switch (12, 14) and, preferably magnetization erase device (70, 80) and eraser (95) can be further comprises. Magnetic pen of the present invention (90) is letter, picture, such as pattern for representing writing as writing, magnet or electromagnet can be composed. Magnetic pen (90) the writing panel (20) moves on proximity to or in contact side, magnetic pen (90) is disposed on the with magnetic powder (1) magnetic pen (90) are attracted to the side. The magnetic powder (1) magnetic pen (90) along a movement track magnetic panel (21) attached to the on, writing panel (20) corresponding to the movement track on said character, picture or pattern or the like to be coated. Of the present invention body (10) in each electromagnet for controlling fixing as an electromagnet for controlling formed between frame, writing panel front side (20) are installed inside the number 1, number 2, number 3 electromagnet array (30, 40, 45), number control unit, magnetic powder (1), blower (50) and guiding semi (60) are mounted, a switch on the lateral surface (12, 13) can be with. Of the present invention writing panel (20) front (specifically, body (10) front) magnet for controlling is arranged magnetic pen (90) externally for writing a configuration are disclosed. According to the preferred embodiment, writing panel (20) magnetic panel (21) and a protective panel (23) comprises. Specifically, magnetic panel (21) is composed of translucent or transparent plate-like member, a source of electrical power magnetism in a power off (Off) consist of a material formed when magnetic disappears. Magnetic panel (21) magnetic pen (90) magnetic panel (21) is movable on the side, moving along a trajectory magnetic powder (1) attached to said magnetic pen (90) a movement track i.e., external writing is equal to the display unit. Protective panel (23) magnetic panel (21) is attached on the outer surface of magnetic pen (90) such as moving contact of magnetic panel according to (21) of the member (e.g., scratches) as to prevent, preferably transparent panel to a film can be formed its material can be plastic or glass. Of the present invention number 1 electromagnet array (30) includes a plurality of electromagnets (hereinafter, 'number 1 electromagnet' by designing a) is composed of a, plurality of number 1 electromagnet body (10) inner spaced-apart side-by-side in a horizontal direction are prevented. According to the preferred embodiment, number 1 electromagnet array (30) includes a body (10) front (i.e., writing panel (20)) side number 2 electromagnet array (40) the length of the ceiling side length is so near the walls each number 1 consists of the major axis of the electromagnet. According to of Figure 3 in the embodiment, number 1 electromagnet array (30) is composed of a electromagnet of number 1 is 5, one of the writing panel (20) closest to the number 1 (hereinafter, 'number 1a electromagnet (30a)' by referred to as) based on the electromagnet, said number 1a electromagnet (30a) and disposed directly another number 1 (hereinafter, 'number 1b electromagnet' by referred to as) number 1a electromagnet the electromagnet (30a) is formed smaller than the long axis length, said number 1b electromagnet immediately and disposed less than another number 1 electromagnet (hereinafter, 'number 1c electromagnet' by referred to as) long axis length electromagnet number 1b is formed. The, number 1 electromagnet array (30) is generally become larger areas which are comprised of which enables a substrate. Also in the case of 3 in the embodiment, number 1 electromagnet array (30) has a number 1a electromagnet (30a), fragmenting plural reinforcing ribs is equal to number 1b electromagnet and number 1c by means of an electromagnet. And, number 1c electromagnet and successively arranged adjacent to remaining a small electromagnet may all be the same has a long axis length formed number 2 number 1c electromagnet than electromagnet array (40) adapted to be connected. The number 1 electromagnet array (30) is become larger areas which are comprised of (hereinafter, 'number 1 region' by referred to as) whereby, dispersed multi magnetic powder (1) gradually narrow space while said number 1 region and in which the aggregation number 2 electromagnet array (40) side is equal to or higher can be conveyed. Of the present invention number 2 electromagnet array (40) includes a plurality of electromagnets (hereinafter, 'number 2 electromagnet' by designing a) is composed of a, plurality of number 2 electromagnet body (10) and over the back side of spaced-apart side-by-side in the height direction are prevented. Wherein, number 2 electromagnet array (40) are installed in said 'back' RM writing panel (20) provided with a 'front' opposing the face of the ID and password. According to the preferred embodiment, number 2 electromagnet array (40) may all be the same size shape to electromagnet constituting a plurality of number 2 can be long. Electromagnet array of the present invention number 3 (45) includes a plurality of electromagnets (hereinafter, 'number 3 electromagnet' by designing a) is composed of a, plurality of number 3 electromagnet body (10) on the upper side of spaced-apart side-by-side in a horizontal direction are prevented. And, number 3 electromagnet array (45) located in the final stage of the writing panel number 3 electromagnet (20) combined with each other at a location spaced apart at a defined distance from. Wherein, said 'spaced apart position' number 3 is electromagnet array (45) are installed in body (10) be a the upper surface of the waypoint. According to the preferred embodiment, electromagnet array number 3 (45) may all be the same size shape to electromagnet constituting a plurality of number 3 can be long. Number 1 and electromagnet array (30) located on one side of the end of number 1 electromagnet (30b) is, number 2 electromagnet array (40) located lower end of number 2 electromagnet (40a) to be placed within the range consists of magnetic field. The number 2 electromagnet array (40) located in the upper end of number 2 electromagnet (40b) is, number 3 electromagnet array (45) located end one side of number 3 electromagnet (45a) are arranged in a magnetic field within the range consists of. Number 1 electromagnet array (30) such as number 1 3 also includes a plurality of electromagnet array (30) can be made, this plurality of number 1 electromagnet array (30) includes a body (10) can be arranged side by side and on a bottom surface of interactivity. Number 2 electromagnet array (40) also includes a plurality of number 2 3 such as electromagnet array (40) can be made, this plurality of number 2 electromagnet array (40) includes a body (10) can be separated in a mutually over the back side of side-by-side. When said, number 2 electromagnet array (40) includes a number 1 electromagnet array (30) connected to the previous gate, number 2 'electromagnet array number 1' is coupled with electromagnet array, "electromagnet array number 1" number 2 electromagnet array and connected thereto. Wherein, said 'connected' RM number 1 electromagnet (30b) electromagnet is number 2 (40a) disposed within the magnetic field range, number 1 'electromagnet (30b') the number 2 'electromagnet (40a') is disposed in the magnetic field range, "electromagnet (30b") number 1 number 2 is "electromagnet (40a") which means that the magnetic field placed within close proximity of each other. Similarly number 3 electromagnet array (45) such as electromagnet array 3 also includes a plurality of number 3 (45) can be made, this plurality of number 3 electromagnet array (45) includes a body (10) can be separated in a side-by-side on the upper side of interactivity. When said, electromagnet array number 3 (45) is number 2 electromagnet array (40) connected to the previous gate, number 3 'electromagnet array number 2' is connected to the electromagnet array, number 3 "electromagnet array number 3" electromagnet array and connected thereto. Wherein, said 'connected' RM number 2 electromagnet (40b) electromagnet is number 3 (45a) disposed within the magnetic field range, number 2 'electromagnet (40b') the number 3 'electromagnet (45a') is disposed in the magnetic field range, "electromagnet (40b") number 2 is number 3 "electromagnet (45a") which means that the magnetic field placed within close proximity of each other. On the other hand, number 1 electromagnet array (30), number 2 electromagnet array (40) and number 3 electromagnet array (45) on magnetic powder (1) can be modulated with moving plate for guiding movement of. When said, magnetic powder (1) located on the lower surface of moving plate is generated sequentially by electromagnets in magnetic field pushes the magnetic movement along and circulate on moving plate by 2000. The control unit of the present invention number number 1, number 2, number 3 electromagnet array (30, 40, 45) of each electromagnet circuit of fluorescent lamp manner its operation mode number plower configuration are disclosed. Specifically, number 1 electromagnet array (30) during said writing panel (20) closest to the number 1 electromagnet (number 1a electromagnet (30a)) number 3 from electromagnet array (45) located at a final stage of electromagnet number 3 (hereinafter, 'number 3a electromagnet (45b)' by referred to as) direction, each number 1 electromagnet, sequentially turning on/off (Off) (On) number 3 electromagnet and number 2 is an electromagnet configured to be actuated in the number accesses. Such as an opposite number mode of operation by said electromagnet, number 1 electromagnet array (30) has a number 1a electromagnet (30a) is first on (On) is switched off (Off) operating, then number 1a electromagnet (30a) is an electromagnet on (On) adjacent the arranged number 1b (Off) is switched off and is arranged in a, then number 1b number 1c arranged adjacent the electromagnet is switched off in such a manner that a plurality of number 1 (Off) is an electromagnet on (On) is an electromagnet circuit of fluorescent lamp is equal to operate. Another aspect of said circuit of fluorescent lamp operation as in the embodiment, number 1 electromagnet array (30) has a number 1a electromagnet, number 1b electromagnet, number 1c electromagnet, .. , Order number 1n (On) sequentially turning on a electromagnet for operating, after a predetermined time from the point in time after a delay number 1a number 1a (On) on the coil of electromagnet, number 1b electromagnet, number 1c electromagnet, .. , Order number 1n sequentially off (Off) configured to operate the electromagnet may be filled. Number 1 electromagnet array (30) control circuit of fluorescent lamp operation is complete, in the same manner as number 2 electromagnet array (40) of constituting N number 2 is an electromagnet body (10) with sequential operations on both sides is equal to the height of the direction. Number 2 electromagnet array (40) control circuit of fluorescent lamp operation is complete, number 3 in the same manner as electromagnet array (45) is an electromagnet horizontal direction off of constituting N number 3 with sequential performs the other. According to another in the embodiment of the present invention, number the fisherman number 1 electromagnet array (30), number 2 electromagnet array (40) and number 3 electromagnet array (45) on all electromagnets (0n) then, then number 1a electromagnet (30a) to start, each number 1 electromagnet, electromagnet and number 3 number 2 is an electromagnet sequentially off (Off) number [e[e] it will do be to operate. When said, the sequential number off [e[e], electromagnet each number 1, number 2 further includes channels that are each coupled between power supply electromagnet and electromagnet and number 3 can be. At this time, number 2 delay is an electromagnet connected number 1b number 1a electromagnet (30a) connected to channels greater time delay than number 1, number 2 and number 3 channels connected to the channels a greater delay time than number 1c electromagnet, the number N number 1n electromagnet connected to channels connected to the channels to be greater time delay than number N-a 1 number 1n-a 1 electromagnet lines are deleted. I.e., number 1a electromagnet (30a) to start number 2 electromagnet array (40) via a number 3 electromagnet array (45) are such that they are connected to the final stage of the corresponding electromagnet toward electromagnet connected channels immediately preceding an electromagnet consists of greater time delay than channels. Magnetic powder of the present invention (1) ion-implants the powder form, for example provided with a representative is cited. Magnetic powder (1) the number 1, number 2, number 3 electromagnet array (30, 40, 45) moved along circulation, blower (50) by writing panel (20) side and [huth it sprinkles,, such magnetic pen in arsenate (90) is checked whether there is a magnetic pen (90) along a movement track magnetic panel (21) is attached to the user is equal to the desired writing substantially indicates outside. This magnetic powder (1) electromagnet array the number 1 to number 3 (30, 40, 45) of the aforementioned sequential off by, number 1 electromagnet array (30) number 1a of electromagnet (30a) starting in number 2 electromagnet array (40) number 3 will eventually through electromagnet array (45) number 3a of electromagnet (45b) side to move with each other. Of the present invention blower (50) is a production number 3 and such electromagnet array (45) final stage of the electromagnet i.e., electromagnet number 3a (45b) magnetic powder (hereinafter, ' magnetic powder reaches' by referred to as) reaches a side wind is unwound and fed into, said front dispersion of magnetic powder reached in 22a.. Wherein said 'front' RM body (10) on the front side in a forward direction extending from the rear side of lapse of the substrate. This blower (50) has a fan fan to cause a change in one direction or gas such as air impeller discharge can be composed of a device capable of delivering a smaller. According to one in the embodiment, blower (50) also includes a number 3 such as 2 electromagnet array (45) final stage of the electromagnet (i.e., electromagnet number 3a (45b)) number 3 electromagnet adjacent to vertical absorbing layer, electromagnet number 3a (45b) off (Off) consists of magnetic powder side without any time when dropped due therefrom. Guide of the present invention semi (60) the blower (50) vertical the aerobic, after a preceding operation then fall forwardly with the notch reaches said magnetic powder to operate guide configuration are disclosed. Said guide such as semi (60) by, number 3a electromagnet (45b) magnetic powder from falling off space passages hereinafter to fall in writing panel (20) after shifted side, guide semi (60) when an operate by equal to or higher than a part of the fall. I.e., magnetic powder (1) guide semi (60) by the operation stop dropping by writing panel (20) and the falling after the carrier amplifier approaches the e can operate, the magnetic pen (90) for writing in magnetic powder (1) magnetic panel (21) attached to the operation can be effectively be made to be coated. According to one in the embodiment, guide semi (60) may be flat shelf form, concave structure of plate-shaped articles can be constitute a short form or long. For indicating as an integral component of the present invention switch for controlling drive, number 1 switch (12) on the number 2 switch (14) can be composed. Number 1 switch (12) is number 1, number 2, number 3 electromagnet array (30, 40, 45) to drive the magnetic powder by using the operation control circuit of fluorescent lamp (1) transfer to create configuration are disclosed. The, number 1 switch (12) is pressed number 1, number 2, number 3 electromagnet array (30, 40, 45) control circuit of fluorescent lamp operation occurs and, the magnetic powder (1) is "number 1 electromagnet array (30)→number 2 electromagnet array (40) electromagnet array→number 3 (45)→writing panel (20)→number 1 electromagnet array (30)" is equal to the circulation path to move. Number 2 switch (14) includes a magnetic panel (21) attached to the magnetic powder (1) collectively configured for erasing are disclosed. Number 2 switch (14) is pressed magnetic panel (21) is driven by current supplied to, the magnetic panel (21) number of magnetism to volatile magnetic panel (21) previously attached to magnetic powder (1) are all stored and toward a substrate. The, user a writing panel (20) is equal to the writing collectively able to negate the displayed several seconds only. On the other hand, magnetic panel (21) repetitively when imparting a magnetism, magnetic panel (21) and have a magnetic itself, when said magnetic panel (21) to predict the expected power even when it will inflict magnetic fiber contains the aforementioned number 2 switch (14) by magnetic powder (1) is equal to or erase operation cannot be implemented. Magnetization of the present invention erase device (70, 80) is the magnetic panel (21) and sets the delay times for a stand-alone configuration number even though the use of a device are disclosed. According to one in the embodiment, magnetization erase device (70, 80) includes a magnetic panel (21) composed of magnetized opposite polarity magnetization cancellation magnet or electromagnet (70) on, this magnetization cancellation (70) reciprocates vertically to guide rails for guiding a (80) can be constructed. Said configuration such as, magnetization cancellation (70) includes a magnetic panel (21) in the vicinity of the guide rail (80) is vertically moved along and magnetic panel (21) equal to or higher than the number of magnetization of a stand-alone. And absorbed cancellation (70) by the number of vertical movement operation is water level number can be disclosed. Of the present invention eraser (95) includes a magnetic panel (21) configured to 72 of opposite, writing panel (20) can be a stand-alone part number functions to display voice data writing during 2000. I.e., eraser (95) a writing panel (20) or access position touched by the magnetic panel (21) that is attached to the regions by an opposite polarity pole magnet by magnetic powder (1) also temporarily rebound following the erased to out-by 2000. With reference, 1 in the embodiment is also such eraser (95) through 'E1' region corresponding to the state in which the writing portion 0.633 are disclosed. The eraser (95) is separately may be provided, magnetic pen (90) attached to one region or magnetic pen (90) constructed for writing elerctromagnet polarity given to convert it to a opposite polarity can be configured. Of the present invention electromagnet blackboard magnetic panel (21) on the inner surface of (i.e., magnetic powder (1) is attached surface) side can be further compressed air jets brushes or air curtain. When said, magnetic panel (21) simultaneously by injecting compressed air through air brush power non-authorization by magnetic panel (21) attached to the magnetic powder (1) more completely number can be a stand-alone. In terms of the present invention preferred embodiment described and illustrated but such term only said particular using the present invention will be clearly to explain the is received, the next range of technical idea and scope of the present invention in the embodiment terms and techniques from detaching from the fee so as to prevent various change and change which can be applied without the reduced the previous commitment. In the embodiment of the present invention are modified the individually visible from the idea and scope it will and must not, themselves to tell it what ranges of the present invention claimed are disclosed. 1: magnetic powder 10: body 12: number 1 switch 14: number 2 switch 20: writing panel 21: magnetic panel 23: protective panel 30: number 1 electromagnet array 40: number 2 electromagnet array 45: number 3 electromagnet array 50: blower 60: guide semi 70:80 magnetization cancellation: guide rail 90: magnetic pen 95: eraser The present invention relates to an electromagnet board which does not generate harmful powder such as lime powder and can be semi-permanently used without additional costs. According to the present invention, the electromagnet board comprises: a magnet pen; magnet powder; a writing panel which displays writing of the magnetic pen on the outside; a first electromagnet array in which a plurality of first magnets are arranged in a horizontal direction; a second electromagnet array in which a plurality of second electromagnets are arranged in a vertical direction; a third electromagnet array in which a plurality of third electromagnets are arranged in the horizontal direction; a control unit which performs flashing control to enable each of the first, second, and third electromagnets to be sequentially turned on or off in the direction from the first electromagnet (called ′1a electromagnet from now on) closest to the writing panel to the third electromagnet (called ′3a electromagnet from now on) located on the farthest end in the third electromagnet array. The electromagnet board comprises: the magnetic powder which is transferred from the 1a electromagnet to the 3a electromagnet through the first, second, and third electromagnet arrays during the sequential flashing control of the control unit; and a blower which scatters the magnetic powder (arriving magnetic powder from now on) which arrives to the 3a electromagnet by the transfer above by blowing air to the arriving magnetic powder. COPYRIGHT KIPO 2017 An electromagnet having a magnetic pen as blackboard, body; said body in connection with the magnetic powder; body and said front side, said magnetic pen movement track along said magnetic pen for writing magnetic powder is attached externally displaying said writing panel; said body inner spaced-apart side-by-side in a horizontal direction arranged electromagnet array consisting of a plurality of number 1 number 1 electromagnet; height direction over the back side of said body side face of the electromagnet arranged spaced-apart plurality of number 2 number 2 consisting of electromagnet array; a plurality of spaced-apart side-by-side in a horizontal direction arranged on the upper side of said body consisting of electromagnet array number 3 number 3 electromagnet; said electromagnet array writing panel closest to said number 1 number 1 electromagnet (hereinafter, 'number 1a electromagnet' referred to by) said number 3 from said electromagnet array writing panel closest to the number 3 electromagnet (hereinafter, 'number 3a electromagnet' by referred to as) side, each said electromagnet number 1, number 2 is an electromagnet sequentially turning on/off (Off) electromagnet and number 3 (On) to number plower number off control section; said control section of said number it freezes, number circuit of fluorescent lamp, said number 1, number 2 and number 3 electromagnet array from said number 1a through said number 3a electromagnet side that are conveyed said electromagnet magnetic powder; and said electromagnet reaches said number 3a to constantly maintain magnetic powder (hereinafter, ' magnetic powder reaches' referred to by) a blowing fan side, reaches front dispersion of magnetic powder in said blower; an electromagnet including a characterized blackboard. According to Claim 1, one end of said number 1 electromagnet array positioned electromagnet number 1, number 2 located lower end of said number 2 electromagnet array configured magnetic field electromagnet placed within close proximity of, said number 2 number 2 electromagnet located end made of a electromagnet, one end of said number 3 electromagnet array positioned electromagnet placed within close proximity of the magnetic field are specially configured to number 3 characterized electromagnet blackboard. According to Claim 1, said number 1 electromagnet array, said number 1a electromagnet, an electromagnet arranged adjacent said number 1a formed long axis length less than said number 1a electromagnet number 1b electromagnet, an electromagnet arranged adjacent said number 1b electromagnet and said number 1b formed long axis length less than number 1c characterized electromagnet including an electromagnet blackboard. According to Claim 1, said number 1 electromagnet array, said number 2 electromagnet array and said number 3 is attached each other each electromagnet array a plurality number of characterized electromagnet blackboard. According to Claim 1, said blower vertical the aerobic, reaches said magnetic powder further including cooking heater guide including a bent forwardly after travelling fall to operate characterized guiding plates or electromagnet blackboard. According to Claim 1, writing said current upon application of a clear or translucent panel magnetism characterized magnetic panel including an electromagnet blackboard. According to Claim 6, of opposite to said magnetic panel 72, attached to said writing by said opposite polarity pole magnet by magnetic powder further including an electromagnet blackboard eraser number some industry characterized. According to Claim 1, characterized in that the electromagnet array on a lower vertical blower said number 3 electromagnet blackboard. According to Claim 6, further comprising erasing device for erasing magnetization direction of magnetization of said magnetic panel, said erase device is magnetization, magnetic panel that has a polarity magnet or electromagnet magnetized opposite magnetization cancellation composed; and magnetic cancellation vertically reciprocates characterized an overall guide rail including an electromagnet blackboard. According to Claim 1, said number fisherman number 1 each said electromagnet, the electromagnet is formed to replace the elastic number 2 electromagnet and number 3 flickering sequentially number, said number the fishermen, electromagnet said number 1, number 2 electromagnet and number 3 on both electromagnet (0n) then, then each number 1 number 1a electromagnet two half said electromagnet, sequentially off (Off) number to number 2 electromagnet and number 3 reciprocate characterized plower electromagnet blackboard. According to Claim 10, said sequential number off the [e[e], said electromagnet each number 1, number 2 channels that are each coupled to a power supply between electromagnet and electromagnet and number 3 characterized in including an electromagnet blackboard.
