JP3242375U - Direct drive motor rapid heat dissipation structure - Google Patents

Abstract

A direct drive motor rapid heat dissipation structure is provided. A motor housing (100) and at least one metal foam (200) are provided. The motor housing includes integrally formed first housing 12 and second housing 14 and flow passages jointly defined by the first and second housings. The first housing further comprises an axial hole 121 and the second housing further comprises a fluid supply hole 141 and a fluid discharge hole 142 communicating the flow path with the outside. A foam metal is contained in the channel. With the configuration of the above members, the heat exchange area is increased by using the porous metal foam, and when the fluid for heat exchange enters the flow path, heat exchange takes place on the surface of the flow path. The heat exchange with the foam metal is further performed, and the heat exchange efficiency is improved. [Selection drawing] Fig. 3

Description

TECHNICAL FIELD The present invention relates to the technical field of motor-related products, and more particularly to a direct drive motor rapid heat dissipation structure.

Electric motors use electromotive force to interact with the motor stator and motor rotor, and convert electrical energy into mechanical energy to achieve the purpose of providing driving force.

However, the energy conversion process described above created wear, and many of these wears reacted to create a heat source that increased the overall operating temperature of the motor. The increased operating temperature of the motor reduced the operating efficiency of the motor and shortened the service life of the associated components.

Therefore, how to maintain the operating temperature of the motor has been a problem for the industry to overcome. A common method is to install a structure such as a heat radiating fin on the outer case of the motor to use air flow to exchange heat with the heat radiating fin, but such a structural design is inefficient. , Affected by the environmental temperature, the expected heat dissipation effect could not be achieved in the environment of high temperature or poor air flow.

Also, the heat radiation fins of the motor are integrally formed with the motor case and are made of the same material as the motor housing. In addition, since the radiating fins are installed outside the motor away from the heat source, the heat source that performs heat exchange takes only the heat source on the surface of the radiating fins and conducts the internal heat source to the surface of the radiating fins at high speed. The internal heat source was constantly accumulating.

Therefore, considering the balance of heat dissipation efficiency and ensuring the heat dissipation cost, there is room for improvement in the heat dissipation structure of the conventional motor housing.

Therefore, the inventor of the present invention thought that the above-mentioned drawbacks could be improved, and as a result of extensive studies, he came up with the proposal of the present invention to effectively improve the above-mentioned problems with a rational design.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances described above, and one example of the object thereof is to solve the problems described above. That is, the present invention is to provide a direct drive motor rapid heat dissipation structure.

According to one embodiment of the present invention, a direct drive motor rapid heat dissipation structure is provided. A direct drive motor rapid heat dissipation structure according to the present invention comprises a motor housing and at least one metal foam. The motor housing includes integrally formed first and second housings and a flow path jointly defined by the first and second housings. The aforementioned first housing further includes an axial hole, and the aforementioned second housing further includes a fluid supply hole and a fluid discharge hole communicating the flow path with the outside. The foam metal is accommodated in the channel. Due to the configuration of the members described above, the heat exchange area is increased by using the porous metal foam. Heat exchange with the foam metal is further performed, and the heat exchange efficiency is improved.

1 is an external perspective view of a direct drive motor rapid heat dissipation structure according to an embodiment of the present invention; FIG. FIG. 2 is a schematic cross-sectional view of the embodiment shown in FIG. 1; FIG. 3 is a cross-sectional view schematically showing another embodiment shown in FIG. 2; 1 is an external perspective view of a motor housing according to an embodiment of the present invention; FIG. FIG. 5 is a schematic cross-sectional view of the embodiment shown in FIG. 4; FIG. 4 is an external perspective view showing a motor housing according to another embodiment of the present invention; Figure 7 is an exploded view schematically showing the partial members of the embodiment shown in Figure 6; Figure 7 is an exploded view schematically showing the partial members of the embodiment shown in Figure 6;

Next, embodiments of the direct drive motor rapid heat dissipation structure of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments, and the members, materials, etc. described below are Various modifications can be made within the spirit of the present invention. In the examples, various different articles are described based on the ratios, sizes, deformations, or displacements used in the description, and are not based on actual member ratios. Also, in the rest of the embodiments, all members that are arranged symmetrically in the same manner are denoted by the same reference numerals. In addition, in the description of each embodiment listed below, directional terms such as "front, back, left, right, up, down, inside, outside" are indicated based on the direction of the designated drawing. should not be construed as a limitation on the invention.

First, a direct drive motor rapid heat dissipation structure according to an embodiment of the present invention will be described with reference to FIGS. The direct drive motor rapid heat dissipation structure according to the present invention comprises a motor housing 100 and at least one metal foam 200 (see FIGS. 1-5).

The motor housing 100 described above is defined by a first housing 12 and a second housing 14 that are integrally formed.

The first housing 12 has an axial hole 121 , a flow path 122 and at least one projection 123 for heat dissipation.

The aforementioned shaft hole 121 is formed so as to pass through the first housing 12 and is used to accommodate members such as the stator 300, the rotor 400, the transmission shaft sleeve 500, and the like.

The flow path 122 described above is formed so as to be recessed along the side surface of the outer periphery of the first housing 12, is arranged at a position in the radial direction of the shaft hole 121, and is not communicated between the tip and the end (approximately C-shaped).

The heat-dissipating protrusions 123 described above are provided on a predetermined end surface of the flow path 122 and are used to increase the surface area of the flow path 122 .

The second housing 14 is installed on the outer peripheral side of the first housing 12 , seals the cross section of the open end of the flow path 122 , and has a fluid supply hole 141 and a fluid discharge hole 142 .

The aforementioned fluid supply hole 141 and fluid discharge hole 142 are formed to penetrate the second housing 14 respectively, communicate with the channel 122 of the first housing 12 , and are located at the distal and terminal positions of the channel 122 . are placed. A fluid for heat exchange (water or air, not shown) enters along the flow path 122, is moved, and then flows out.

The metal foam 200 described above is a porous metal object housed in the channel 122 . It utilizes a frame made of metal material and a structure divided by the frame into a large amount of dense fine gaps to allow heat exchange fluids (such as water and air) to pass through. Its overall form presents an approximate sponge scrubbing brush.

The above is a description of each member and installation method of the direct drive motor rapid heat dissipation structure according to a preferred embodiment of the present invention. The operation features of the embodiments of the present invention are described below.

In practice, the fluid supply hole 141 and the fluid discharge hole 142 are each connected to a fluid supplier (not shown). The fluid supplier causes the cooling fluid to enter the channel 122 from the fluid supply hole 141, pass through the gaps of the foam metal 200 along the channel 122, exchange heat, and return the cooling fluid to the fluid supplier from the fluid discharge hole 142. is flowing to

The cooling fluid enters the channel 122 and contacts the channel 122 and the heat-dissipating projections 123 (surface area) respectively to achieve heat exchange. ) form a heat exchange with

The fine interstitial surface of the foam metal 200 itself further enhances the heat exchange effect of the cooling fluid in the channel 122, causing the cooling fluid to pick up more heat sources.

6-8 show another embodiment of the present invention comprising a motor housing 600 and at least one metal foam 200. FIG.

The motor housing 600 described above is composed of a first housing 62 and a second housing 64 which are independent.

The first housing 62 has an axial hole 621 and a spiral channel 622 .

The aforementioned shaft hole 621 is formed so as to pass through the first housing 62 .

The aforementioned helical flow path 622 is formed so as to be recessed along the side surface of the outer periphery of the first housing 62, is arranged at a position in the radial direction of the shaft hole 621, and has a distal end and a distal end that are not communicated with each other. .

The second housing 64 is mounted on the outer peripheral side of the first housing 62, seals the cross section of the open end of the spiral flow path 622, and communicates the spiral flow path 622 with the outside. It has a fluid exit hole 642 .

The metal foam 200 described above is housed in the spiral channel 622 . Since the structure is the same as the above-described embodiment, its description is omitted here.

Since the structure composed of the above-described members operates in the same manner as in the above-described embodiment, the description thereof will be omitted here.

The above-described embodiments are for facilitating understanding of the present invention, and are not for limiting interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from its spirit, and that equivalents thereof are included in the present invention.

100 Motor housing 12 First housing 121 Shaft hole 122 Flow path 123 Heat radiation convex part 14 Second housing 141 Fluid supply hole 142 Fluid discharge hole 200 Foam metal 600 Motor housing 62 First housing 621 Shaft hole 622 Spiral flow path 64 Second housing 641 Fluid supply hole 642 Fluid discharge hole

Claims (5)

A motor comprising a first housing and a second housing that are integrally formed, and a flow path that is jointly defined between the first housing and the second housing and that is not communicated from top to bottom. a housing;
and a foam metal housed in the flow path,
The first housing has an axial hole formed to penetrate the first housing,
The second housing has a fluid supply hole and a fluid discharge hole that are formed to penetrate the second housing, communicate the flow path with the outside, and are arranged at the tip and end positions of the flow path. death,
The direct drive motor rapid heat dissipation structure, wherein the flow path is arranged at a radial position of the shaft hole. 2. The direct drive motor rapid heat dissipation structure according to claim 1, wherein at least one heat dissipation protrusion is provided on a predetermined end surface of said flow path. 2. The rapid heat dissipation structure for a direct drive motor as claimed in claim 1, wherein said flow path is recessed in the outer surface of said first housing. a motor housing,
a first housing, a shaft hole formed to penetrate the first housing; a first housing having a helical channel disposed at a position and having a distal end and a distal end that are not in communication;
A second housing that is mounted on the outer peripheral side of the first housing and seals the cross section of the open end of the spiral flow path, the second housing being formed to penetrate the second housing, and the a motor housing including a second housing that communicates the helical flow path with the outside and has a fluid supply hole and a fluid discharge hole that are arranged at distal and terminal positions of the helical flow path;
and a metal foam housed in the spiral channel. 5. The direct drive motor rapid heat dissipation structure according to claim 4, wherein at least one heat dissipation protrusion is provided on a predetermined end surface of said spiral flow path.

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