KR101275409B1 - Cooling Device Using Electromagnetic Actuator - Google Patents

Abstract

The present invention relates to a cooling device using an electromagnet type actuator, comprising a housing having an inner space formed by merging an upper housing and a lower housing, and having an opening for opening and closing of air by communicating with the atmosphere. a diaphragm and a diaphragm provided across the housing, a magnet provided in the inner space, and an upper and lower blower chambers arranged across the inner space of the housing. It is provided on one side and mounted opposite to the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for the up and down flow of the diaphragm, and the air channel groove (air) on the inner peripheral surface of the upper housing and the lower housing Provided is an electromagnet type cooling device in which a channel groove is formed.

Description

Cooling Device Using Electromagnetic Actuator

The present invention relates to a cooling device using an electromagnet actuator.

Various electronic devices including a computer generate heat by continuous use, and when the heat is generated, the performance of the electronic device is degraded. Therefore, at least one cooling means is provided in various electronic devices.

In the related art, a fan type is mainly used as such a cooling means, but a cooling device using a fan has disadvantages such as excessive noise, excessive power consumption, difficulty in manufacturing method, and difficulty in miniaturization. It is intended to provide a new type of cooling device.

The present invention is to solve the above problems of the fan-type cooling device, to provide a cooling device that is low in noise, low in power consumption, simple to manufacture, and easy to manufacture in a small size.

In order to realize the above technical problem, an aspect of the present invention,

A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening for communicating with the atmosphere and allowing air to enter and exit, and a magnet provided in the inner space. A diaphragm and a diaphragm which are provided across the inner space of the housing to divide the inner space into upper and lower blower chambers, and are mounted on one surface of the diaphragm and are opposed to the magnets to mutually interact with the magnets. It may include a coil for generating an electromagnetic force by the operation to provide a driving force of the up and down flow of the diaphragm, the air channel groove (air channel groove) may be formed on the inner peripheral surface of the upper housing and the lower housing.

In one embodiment of the present invention, the opening may be provided in the upper housing and the lower housing, respectively.

In one embodiment of the present invention, the opening provided in the upper housing may be provided on the side or main surface of the upper housing.

In one embodiment of the present invention, the opening provided in the lower housing may be provided on the side or bottom surface of the lower housing.

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In one embodiment of the invention, the air channel groove may be in communication with the opening at at least one point.

In one embodiment of the present invention, a housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to open and close the air in communication with the atmosphere, and the inner space A magnet provided in the diaphragm and a diaphragm arranged across the inner space of the housing to divide the inner space into upper and lower blower chambers and provided on one surface of the diaphragm. Opposed to the coil to generate an electromagnetic force in interaction with the magnet to provide a driving force of the up and down flow of the diaphragm, the inner circumferential surface of the upper housing and the lower housing is the shape that the diaphragm forms when the diaphragm flows up and down May correspond to

In one embodiment of the present invention, the diaphragm may be fitted between the upper border and the lower border in which the upper housing and the lower housing are incorporated.

In one embodiment of the present invention, the diaphragm may have a wavy elastic reinforcement.

In one embodiment of the present invention, the housing may have a cylindrical shape.

In one embodiment of the present invention, the housing may have a square pillar shape.

In one embodiment of the present invention, the magnet may be fixed to the inner sealing surface of the yoke disposed in the inner space.

In one embodiment of the present invention, a fitting hole is provided in the middle of the lower housing, and the magnet may be fixed to the inner sealing surface of the yoke fitted in the fitting hole.

In one embodiment of the present invention, an upper plate may be provided on a main surface of the magnet.

In one embodiment of the present invention, a housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to open and close the air in communication with the atmosphere, and the inner space A magnet provided in the diaphragm and a diaphragm arranged across the inner space of the housing to divide the inner space into upper and lower blower chambers and provided on one surface of the diaphragm. Oppositely mounted to generate a electromagnetic force in interaction with the magnet to provide a driving force for the vertical flow of the diaphragm, a vent hole may be provided between the diaphragm and the coil provided on one surface of the diaphragm.

In one embodiment of the present invention, the vent hole may be formed by the protrusion (P) and the depression (D) provided in the opposite direction to the diaphragm.

In one embodiment of the present invention, a housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to open and close the air in communication with the atmosphere, and the inner space A magnet provided in the diaphragm and a diaphragm arranged across the inner space of the housing to divide the inner space into upper and lower blower chambers and provided on one surface of the diaphragm. Oppositely mounted to generate a electromagnetic force in interaction with the magnet to provide a driving force for the vertical flow of the diaphragm, the diaphragm is provided with a depression may guide the position of the coil mounted on one surface.

In another embodiment of the invention, the housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening (opening) in communication with the atmosphere to allow the access of air; A magnet provided in the internal space; A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And a coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force by interacting with the magnet to provide a driving force for the up and down flow of the diaphragm. It may be in communication with the upper surface of the housing.

In one embodiment of the present invention, the main surface of the upper housing includes a first opening disposed inward in a predetermined shape and a second opening disposed outside the first opening, wherein the second opening is formed in the lower housing. It may be in communication with the third opening provided.

In one embodiment of the present invention, the third opening may be formed radially in the lower housing.

In one embodiment of the present invention, the second opening and the third opening may be the same number.

According to the present invention, the piezoelectric actuator can be used to simply operate the cooling device at low power, and the structure is simple, so that the cooling device can be manufactured compactly, and the manufacturing itself can be provided with a simple cooling device.

In addition, since the device is operated only by moving the diaphragm up and down by the piezoelectric actuator, it is possible to provide a cooling device with little noise.

1 is a perspective view of an embodiment according to the present invention, the electromagnet type cooling device,
Figure 2 is an exploded perspective view of an embodiment according to the present invention, the electromagnet type cooling device,
3 is a cross-sectional view (a) of the AA portion of FIG. 1, a plan view (b) of the diaphragm, an internal plan perspective view (c), a cross-sectional view (d) of the diaphragm,
Figure 4a is a plan view of the upper housing as one configuration of the present invention from the inside,
Figure 4b is a plan view of the lower housing as one configuration of the present invention as viewed from the inside,
Figure 4c is a plan view from the inside of another embodiment of the upper housing of the configuration of the present invention,
Figure 4d is a plan view from the inside of another embodiment of the lower housing of the configuration of the present invention,
5 is a cross-sectional view showing an embodiment in which the diaphragm which is one configuration of the present invention is coupled;
6A to 6E are cross-sectional views illustrating various embodiments in which an opening is provided in the present invention.
7A to 7D are plan views and cross-sectional views illustrating various embodiments of the diaphragm,
8 is a cross-sectional view (a), the upper housing inner plan view (b) and the lower housing inner plan view (c) showing that the opening is provided in the upper portion of the embodiment of the present invention.
9A and 9B are reference views showing the operation of the electromagnet type cooling apparatus of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity, and the elements denoted by the same reference numerals in the drawings are the same elements.

1 is an exploded perspective view of an embodiment according to the present invention electromagnet cooling device, Figure 2 is an exploded perspective view of an embodiment of the present invention electromagnet cooling device, Figure 3 is a cross-sectional view of the AA portion of FIG.

1 to 3, the electromagnet type cooling apparatus 1000 according to the present embodiment includes an inner space 11 formed by combining the upper housing 100 and the lower housing 200, and the atmosphere and A housing (10) having openings (111) and (211) for communicating with and allowing air to flow in and out, a magnet (20) provided in the inner space (11), and the housing A diaphragm 30 and the diaphragm provided across the inner space 11 of the 10 to divide the inner space 11 into upper and lower blower chambers 12 and 13. It is provided on one side of the 30 and mounted opposite to the magnet 20 to generate the electromagnetic force to interact with the magnet 20 to include a coil 40 to provide a driving force of the vertical flow of the diaphragm 30 Can be.

In the present embodiment, the electromagnetic actuator is responsible for driving the cooling device so that power consumption is low, noise is not generated, and the structure is very simple and can be miniaturized.

In the present invention, the housing 10 may have a cylindrical shape as shown in FIGS. 1 and 2. In addition, although not shown, the housing 10 may have a rectangular pillar shape, the edge may have a cylindrical shape, and the surface portion may have various shapes such as a shape merged into a square pillar shape. When the housing 10 has a rectangular pillar shape, a means (hole or groove and protrusions fitted thereto) for coupling the upper housing 100 and the lower housing 200 may be provided at a corner thereof, thereby utilizing the space. It can increase.

The present invention can form the inner space 11 by the combination of the upper housing 100 and the lower housing 200. That is, in order for the present invention to be utilized as a cooling device, a space in which air enters and exits in communication with the atmosphere should be provided, and this may correspond to the internal space 11. When the upper housing 100 and the lower housing 200 are combined and fixed, the inner space 11 may communicate with the atmosphere only through an opening and all other portions may be kept in a closed state.

The upper housing 100 and the lower housing 200 may be formed of side surfaces 130 and 230 that define the heights of the main surfaces 110 and 210 and the housing, respectively. The upper housing 100 and the lower housing 200 should form an inner space 11 by coalescing, and the side surfaces 130 and 230 may correspond to a height at which the inner space 11 is formed. have.

The inner circumferential surfaces of the upper housing 100 and the lower housing 200 may have a shape corresponding to a vertical flow shape of the diaphragm 30 to be described below. When provided in a mutually corresponding shape, since the space between the diaphragm and the upper housing 100 or the lower housing 200 is minimized when the diaphragm 30 compresses air, all the air staying in the inner space 11 receives a compressive force. The air can be discharged efficiently, thus increasing the utilization of space.

Air channel grooves 120 may be formed on inner circumferential surfaces of the upper housing 100 and the lower housing 200. That is, when the air channel groove 120 is formed on the inner circumferential surface forming the inner space 11, the flow of air can be induced, so that the air can be efficiently discharged from the cooling device. In addition, the air channel groove 120 communicates with the opening, which will be described below, at least at one point, so that the air flowing along the air channel groove 120 can be concentrated and discharged, so that the air can be discharged more efficiently.

The upper housing 100 and the lower housing 200 may remain firmly fixed after being combined with each other to be utilized as a cooling device. Thus, the upper housing 100 and the lower housing 200 may require a means that can be firmly coupled to each other, for this purpose fixed flange 131 extending downward from the side 130 of the upper housing 100 ) And a fixing groove 231 may be provided at the side surface 230 of the lower lower housing 200 so as to have the fixing flange 131 fitted thereto. Of course, it is also possible that the fixing groove is provided in the upper housing 100 and the fixing flange is provided in the lower housing 200, and in addition to this, any method may be possible.

The present invention may be provided with an opening (111) (211) for allowing the interior space 11 is in communication with the atmosphere to allow the entrance and exit of air. The openings 111 and 211 correspond to a passage of air that communicates the internal space 11 with the atmosphere to allow air to enter and exit. The opening may be provided in various shapes, and may be provided in various locations according to the location of the cooling device. That is, it may be provided on the main surface 110, 210, side surface 130, 230 of the upper housing 100 or the lower housing 200, even if the main surface 110, 210 is provided at random Or it may be formed by a certain rule. When formed with a predetermined rule, a plurality of openings may be arranged in a circle shape, or two or more concentric circles. In addition, the upper housing 100 may be provided on the main surface 110, and the lower housing 200 may be disposed on the side surface 230 or vice versa.

In the present invention, a magnet 20 is provided in the inner space 11. The magnet 20 may generate an electromagnetic force in interaction with the coil 40 to be described below to provide a driving force of the vertical flow of the diaphragm 30.

The magnet 20 may be magnetized and fixed to an inner sealing surface of the yoke 21 disposed in the inner space 11. Alternatively, the lower housing 200 may include a fitting hole 250 in the middle, and the magnet 20 may be magnetized and fixed to the inner sealing surface of the yoke 21 fitted into the fitting hole 250. . In addition, an upper plate 22 may be provided at an upper portion of the magnet 20.

 Since the yoke 21 and the magnet 21 provided in the yoke 21 are provided to generate a magnetic field of a predetermined intensity, the lower part of the yoke 21 is sealed and the upper part is formed in an open hollow cylinder. Can be. The magnet 20 is a cylindrical permanent magnet that is magnetized to different poles in the vertical direction in the vertical direction to generate a magnetic force of the magnet, the magnet 20 is bonded to the fixed center to the inner center of the yoke (21) The lower surface may be bonded and bonded to the upper surface of the sealing side of the inner space of the yoke 21. Alternatively, the yoke 21 may be fitted into the fitting hole 250 of the lower housing 200, in this case, the yoke 21 may be fitted by a force fitting method without a separate bonding agent, or by using a bonding agent to the yoke 21. Side bonding may be bonded to the fitting hole (250).

In addition, the inner surface of the yoke 21 and the outer surface of the magnet 20 are provided with different inner and outer diameter sizes so that a predetermined size is provided between the inner surface of the yoke 21 and the outer surface of the magnet 20. A lower end of the vibration generating coil 40 to be described below may be disposed between the air gap AG and the air gap AG.

Accordingly, the magnetic field portion formed of the yoke 21 and the magnet 20 may prevent contact with the vibration generating coil 40, which may occur during vertical vibration by the air gap AG.

An upper plate 22 is formed on the upper surface of the magnet 20 to smoothly form a magnetic flux that flows to the upper end of the yoke 21 through the vibration generating coil 40 toward the open side of the yoke 21. Can be mounted.

In the present invention, the diaphragm 30 is provided across the inner space 11 of the housing 10 so that the inner space 11 is upper and lower blower chambers 12 and 13. Can be divided into In the present invention, the upper and lower blow chambers 12 and 13 of the inner space 11 are used to increase the efficiency of the cooling device by utilizing both upper and lower flows of the diaphragm 30 in the cooling device. The upper and lower blower chambers (12, 13) can be divided into a space into which cooling air is introduced. That is, when the diaphragm 30 flows upward, the air of the upper blower chamber 12 exits, and air flows into the lower blower chamber 13, and when the diaphragm 30 flows downward, By opposing mechanisms, both the upper and lower blower chambers 12 and 13 can be utilized as cooling devices. In this way, the efficiency of the piezoelectric cooling device according to the present invention can be very high.

The diaphragm 30 may be made of a resin plate or a metal plate, and any material may be used as long as the material is capable of bending vibration in the thickness direction of the plate.

The diaphragm 30 may be fitted between the upper border 133 and the lower border 233 into which the upper housing 100 and the lower housing 200 are integrated. That is, the side surface 130 of the upper housing 100 and the side surface 230 of the lower housing 200 may be fitted to a portion where the coalescing. That is, the diaphragm 30 forms upper and lower blower chambers 12 and 13 across the internal space 11, and then the edge 133 and lower housing 200 of the upper housing 100. It is sandwiched between the edge (233). Of course, the fitting method of the diaphragm 30 may be various, which will be described later with reference to the drawings.

The diaphragm 30 may have a wavy elastic reinforcing portion. As shown in FIG. 3, the diaphragm 30 may be provided with an elastic reinforcement part 33 that is bent once in each of upper and lower portions. Of course, the bend may be in any manner, such as only the upper portion, the lower portion, or the upper lower portion several times. This is because in the present invention, the diaphragm 30 is used to vertically flow, so that the flow can be made smoothly by applying an elastic force in the vertical flow. In addition, since the contact between the vibration generating coil 40 and the magnet 20 or the yoke 21 cannot be completely prevented by the above-described air gap AG, the vibration is generated by applying an elastic force to the diaphragm 30. Contact between the coil 40 and the magnet 20 or the yoke 21 may be further prevented.

One surface of the diaphragm 30 may be equipped with a vibration generating coil 40 to be described below. The coil 40 may be mounted in a cylindrical shape in a direction perpendicular to the diaphragm 30. Here, the diaphragm 30 may be provided with a centering means (centering assembly) to facilitate the insertion of the cylindrical coil 40. That is, the recess D recessed from the diaphragm 30 to the lower surface is roundly disposed at a position corresponding to the inner diameter of the coil 40. That is, as shown in (a) (b) (c) (d) of FIG. 3, the plurality of recesses D forms the inner diameter of the coil 40 toward the lower surface of the diaphragm 30. It is protruded as it is positioned, allowing for accurate centering without the use of special tools.

In addition, in this case, when the diaphragm 30 is lowered, the inside of the cylinder formed by the coil 40 may be blocked from the outside to prevent the air therefrom from escaping. That is, when the surface on which the coil 40 is attached to the diaphragm 30 is entirely attached to the diaphragm 30, air may leak out of the lower blower chamber 13. Therefore, even if the coil 40 is mounted by giving a step to the portion in which the coil 40 is mounted in the diaphragm 30, a vent hole that is a space that allows air to enter and exit between the coil 40 and the diaphragm 30. 31) can be formed. That is, the inner diameter of the coil 40 is provided with a protrusion P protruding to the upper portion of the diaphragm 30 in the inner diameter portion between the depressions D arranged to form the inner diameter of the coil 40. Accordingly, the vent hole 31, which is a portion where a predetermined space is formed without being in contact with the lower surface of the diaphragm 30, may be provided. Thus, even when the coil 40 is mounted on the diaphragm 30, air can smoothly enter and exit the outer space from the cylindrical inner space formed by the coil 40.

In the present invention, the vibration generating coil 40 is disposed directly above the magnetic field portion consisting of the magnet 20, the yoke 21, the upper plate 22 to generate an electric field of a constant strength when the power is applied from the outside. It may be fixed by bonding to the center portion of the lower surface of the diaphragm 30 by a bonding agent.

The inner end of the yoke 21 and the lower end of the vibration generating coil 40 is a smooth interaction between the magnetic field generated in the magnetic field portion and the electric field generated in the vibration generating coil 40 The air gap AG is formed between the outer surfaces of the magnet 20.

The housing 10 may include a printed circuit board (PCB) (not shown) or an FFC (not shown) which is electrically connected to one surface to supply external power to the vibration generating coil 40.

Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 4a is a plan view of the upper housing as one configuration of the present invention as viewed from the inside. Referring to FIG. 4A, it can be seen that an air channel groove 120 is formed on the inner circumferential surface of the upper housing 100, and the air channel groove 120 is in communication with the opening 111. .

Figure 4b is a plan view of the lower housing as one configuration of the present invention as viewed from the inside. Referring to FIG. 4B, an air channel groove 120 is formed on an inner circumferential surface of the lower housing 200, and the air channel groove 120 is in communication with the opening 211. In addition, the lower housing 200 may be provided with a fitting hole 250 to which the yoke 21 to which the magnet 20 is mounted is fitted.

4C and 4D are plan views viewed from the inside of another embodiment of the upper housing and the lower housing, which is one configuration of the present invention. 4C and 4D, when the openings 111 and 211 are provided only in four portions (up, down, left, and right) of the side surfaces 130 and 230, the air is not directed radially but toward the portion where the opening is located. It may be provided in a shape that can escape.

5 is a cross-sectional view showing an embodiment in which the diaphragm which is one configuration of the present invention is coupled. Referring to FIG. 5, the diaphragm 30 may be fitted between the upper border 133 and the lower border 233 into which the upper housing and the lower housing are integrated. Here, the end portion of the diaphragm 30 may be fitted only to a part of the rim (a), when fully fitted to the rim (c), when fitted to the fixing protrusion provided on the rim (b) and the like. Can be. In addition, it is possible to fix in various shapes as long as it can be fixed while crossing the interior space (11).

6A to 6E are cross-sectional views illustrating various embodiments in which an opening is provided in the present invention. 6A to 6E, the openings 111 and 211 may be provided on the upper housing 100 and the lower housing 200 on the main surface 110, 210, or the side surfaces 130, 230, and the like. have. That is, the opening may be provided at one side of the upper housing 100 and the lower housing 200 to allow air to enter and exit in one direction (FIG. 6A), and the upper housing 100 and the lower housing ( Evenly arranged around the side of the 200 may occur in the air in multiple directions of the side (Fig. 6b), and is provided on the main surface 110 and 210 of the upper housing 100 and the lower housing 200 Ingress of air may occur symmetrically (FIG. 6C) (FIG. 6D). Of course, the number of openings can be adjusted as needed. In addition, the upper housing 100 may be provided with an opening on the main surface 110 and the lower housing 200 may have an opening provided on the side surface 210 (FIG. 6E). It is possible.

The provided shape of the opening is just an example, and the opening may be provided in various shapes at various positions in accordance with actual situations.

9A and 9B are reference views showing the operation of the piezoelectric cooling device of the present invention. In the present invention, the cooling device is operated by applying power to the coil 40 provided in the diaphragm 30 so that the diaphragm 30 flows upward or downward.

9A shows a shape in which the diaphragm 30 flows upward, and it can be seen that the diaphragm 30 flows corresponding to the shape of the inner circumferential surface of the upper housing 100. In this case, the upper blower chamber 12 Air is discharged to the outside through the opening 111, air into the lower blower chamber 13 may enter through the opening (211).

On the contrary, FIG. 9B shows a shape in which the diaphragm 30 flows downward, and it can be seen that the diaphragm 30 flows corresponding to the shape of the inner circumferential surface of the lower housing 200. In this case, the upper blower chamber ( 12, air may enter through the opening 111, and air of the lower blower chamber 13 may be discharged to the outside through the opening 211.

8 is a cross-sectional view (a), the upper housing inner plan view (b) and the lower housing inner plan view (c) showing that the opening is provided in the upper portion of the embodiment of the present invention. As shown in FIG. 8, the electromagnet type cooling device 1000 according to another embodiment of the present invention includes an inner space 11 formed by combining the upper housing 100 and the lower housing 200, and is atmospheric. A housing (10) having openings (111) and (211) for communicating with air, and a magnet (20) provided in the inner space (11); A diaphragm 30 and the diaphragm provided across the inner space 11 of the housing 10 to divide the inner space 11 into upper and lower blower chambers 12 and 13. Is provided on one side of the 30 and mounted opposite to the magnet 20 includes a coil 40 to generate an electromagnetic force in interaction with the magnet 20 to provide a driving force of the vertical flow of the diaphragm 30 The upper and lower blower chambers 12 and 13 are both opened at the top of the housing 10. It can communicate with cotton.

In other words, when a plurality of blower chambers are provided up and down as in the present embodiment, it is common that air flows in and out of the blower chamber to communicate with the outside, but to cool a device located on a specific surface as in the present embodiment. The opening may be communicated with only the upper surface to increase the cooling efficiency.

Accordingly, the main surface 110 of the upper housing 100 includes a first opening 111a disposed inwardly in a predetermined shape and a second opening 111b disposed outside of the first opening 111a. The second opening 111b may be configured to communicate with the third opening 111c provided in the lower housing 200. That is, the third opening 111c is radially formed in the lower housing 200, but does not penetrate through the side surfaces 130 and 230 so as not to communicate with the outside, and the second opening 111b in a vertical position. The hole is provided only up to the position where the third opening 111c and the second opening 111b communicate with each other. Thus, the number of the second opening and the third opening may be the same.

Therefore, in the present embodiment, the diaphragm 30 should block the first opening 111a and the lower blower chamber 13, but do not block the second opening 111b and the lower blower chamber 13. The diaphragm 30 may be sized such that an end thereof is positioned between the first opening 111a and the second opening 111b disposed outside the first opening 111a.

The present invention is not limited by the above-described embodiments and the accompanying drawings, but is defined by the appended claims. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims, As will be described below.

10: housing
20: magnet
30: diaphragm
40: coil
100: upper housing
200: lower housing
1000: electromagnet cooling system

Claims (21)

A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to communicate with the atmosphere and to allow air to enter and exit the housing;
A magnet provided in the internal space;
A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And
A coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for vertical flow of the diaphragm;
And an air channel groove is formed on the inner circumferential surfaces of the upper and lower housings.
The method of claim 1,
The opening is an electromagnet type cooling device, respectively provided in the upper housing and the lower housing.
The method of claim 1,
The opening provided in the upper housing is an electromagnet type cooling device provided on the side or main surface of the upper housing.
The method of claim 1,
The opening provided in the lower housing is an electromagnet type cooling device provided on the side or bottom of the lower housing.
delete The method of claim 1,
And said air channel groove communicates with said opening at at least one point.
A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to communicate with the atmosphere and to allow air to enter and exit the housing;
A magnet provided in the internal space;
A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And
A coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for vertical flow of the diaphragm;
The inner peripheral surface of the upper housing and the lower housing is an electromagnet type cooling device having a shape corresponding to the shape formed by the diaphragm when the diaphragm flows up and down.
The method of claim 1,
The diaphragm is an electromagnet type cooling device that is inserted between the upper border and the lower border to which the upper housing and the lower housing are incorporated.
The method of claim 1,
The diaphragm is an electromagnet type cooling device having a wave resilient reinforcement.
The method of claim 1,
The housing is an electromagnet cooling device having a cylindrical shape.
The method of claim 1,
The housing is an electromagnet type cooling device having a square pillar shape.
The method of claim 1,
The magnet is an electromagnet type cooling device that is magnetized and fixed to the inner sealing surface of the yoke disposed in the inner space.
The method of claim 1,
The fitting hole is provided in the middle of the lower housing,
And said magnet is magnetized and fixed to the inner sealing surface of the yoke fitted in said fitting hole.
The method of claim 1,
Electromagnet type cooling device having a top plate on the main surface of the magnet.
A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to communicate with the atmosphere and to allow air to enter and exit the housing;
A magnet provided in the internal space;
A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And
A coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for vertical flow of the diaphragm;
Cooling device of the electromagnet type provided with a vent hole between the diaphragm and the coil provided on one surface of the diaphragm.
16. The method of claim 15,
The vent hole is an electromagnet type cooling device formed by the protrusion (P) and the depression (D) provided in the diaphragm in the opposite direction to each other.
A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to communicate with the atmosphere and to allow air to enter and exit the housing;
A magnet provided in the internal space;
A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And
A coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for vertical flow of the diaphragm;
The diaphragm is provided with a depression, the electromagnet type cooling device for guiding the position of the coil mounted on one surface.
A housing having an inner space formed by combining the upper housing and the lower housing, the housing having an opening to communicate with the atmosphere and to allow air to enter and exit the housing;
A magnet provided in the internal space;
A diaphragm provided across the inner space of the housing to divide the inner space into upper and lower blower chambers; And
A coil provided on one surface of the diaphragm and mounted to face the magnet to generate an electromagnetic force in interaction with the magnet to provide a driving force for vertical flow of the diaphragm;
Both the upper and lower blower chambers are electromagnet type cooling device in which the opening is communicated to the upper surface of the housing.
19. The method of claim 18,
The main surface of the upper housing includes a first opening disposed inside and a second opening disposed outside the first opening in a predetermined shape.
The second opening is an electromagnet type cooling device in communication with the third opening provided in the lower housing.
20. The method of claim 19,
The third opening is an electromagnet type cooling device is formed radially in the lower housing.
20. The method of claim 19,
The second opening and the third opening of the electromagnet type cooling device having the same number.

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