Electric vehicle motor heat dissipation device based on liquid cooling vapor chamber

Abstract

The utility model discloses an electric automobile motor heat dissipation device based on a liquid cooling vapor chamber, and relates to the technical field of electric automobile motor heat dissipation. The motor comprises a base, a motor body is fixedly connected to the top of the base, a connecting support is fixedly arranged at the bottom of the motor body, and liquid cooling vapor chambers are uniformly and fixedly arranged on the outer wall of the motor body. The liquid cooling vapor chamber is arranged on the outer wall of the motor body, the cooling fan is driven to rotate, heat dissipation in the motor body can be accelerated, the heat exchange copper sheet is arranged, cooling liquid is conveyed into the connecting support, the cooling liquid and the heat exchange copper sheet are subjected to heat exchange, the heat exchange copper sheet is cooled, and the cooling effect of the motor is improved. According to the motor provided by the invention, the heat dissipation efficiency of the motor body can be further improved, and the S-shaped heat exchange channel is arranged, so that the flow path of the cooling liquid in the connecting support can be prolonged, the cooling liquid can fully exchange heat with the heat exchange copper sheets, and the heat dissipation effect of the motor body is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle motor heat dissipation technology, and in particular relates to an electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader. Background Technology

[0002] Electric vehicles (EVs) are vehicles powered by an onboard power source, driven by an electric motor, and compliant with all road traffic and safety regulations. Due to their relatively smaller environmental impact compared to traditional vehicles, their prospects are widely considered promising. The power source provides electrical energy to the EV's drive motor, which converts this electrical energy into mechanical energy, driving the wheels and working devices via a transmission or directly. During the EV motor's rotation, heat is generated, requiring timely cooling of the motor's internal components. A search revealed patent application number 202222581778.9, which discloses a liquid-cooled heat dissipation device for an EV motor. This device includes an outer cylinder, with a drive box fixedly connected to the top of the outer cylinder. An inner rotor cylinder is located inside the outer cylinder. A water inlet pipe is fixedly connected to the left side of the outer cylinder through an opening, and the right end of the water inlet pipe penetrates the inner rotor cylinder and extends into its interior.

[0003] However, during actual use, the applicant found that the method of supplying cooling water to the inner cylinder of the rotor through the water inlet pipe to dissipate heat from the electric vehicle motor was not feasible because the inner cylinder rotated with the rotor. As a result, the water in the water inlet pipe could not be delivered smoothly to the inner cylinder of the rotor, thus failing to achieve proper heat dissipation inside the electric vehicle motor. In view of this, we propose an electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader. It includes a base, a motor body fixedly connected to the top of the base, a connecting support fixedly mounted at the bottom of the motor body, a liquid-cooled heat spreader evenly fixedly mounted on the outer wall of the motor body, a cooling fan fixedly mounted on the rear side of the motor body, an arc-shaped cover fitted over the motor body, the bottom of the arc-shaped cover slidably connected to the base, a front sealing plate fixedly connected to the front side of the arc-shaped cover by screws, a front dustproof net mounted on the front sealing plate of the liquid-cooled heat spreader, a rear sealing plate fixedly connected to the rear side of the arc-shaped cover by screws, a rear dustproof net mounted on the rear sealing plate of the cooling fan, a lower part of the connecting support embedded in the base, heat exchange copper plates staggered and fixedly mounted on the inner wall of the connecting support, the tops of the heat exchange copper plates fixedly mounted on the motor body, and an inlet branch pipe and an outlet branch pipe fixedly mounted on both sides of the base, one end of each branch pipe communicating with the interior of the connecting support.

[0006] Preferably, the inner wall of the connecting support and several heat exchange copper plates together form an S-shaped heat exchange channel.

[0007] Preferably, one end of the liquid inlet branch pipe is connected to the liquid inlet end of the S-shaped heat exchange channel, and one end of the liquid outlet branch pipe is connected to the liquid outlet end of the S-shaped heat exchange channel.

[0008] Preferably, the bottom of the arc-shaped cover is symmetrically provided with T-shaped connecting sliders, which slide in conjunction with the T-shaped connecting grooves opened on the top of the base.

[0009] Preferably, a connecting seat is fixedly connected to the rear side of the motor body, and the cooling fan is fixedly installed on the connecting seat.

[0010] Preferably, the front end face of the arc-shaped cover is flush with the front end face of the base, and the rear end face of the arc-shaped cover is flush with the rear end face of the base.

[0011] Preferably, the rear sidewall of the front sealing plate is fitted to the front end face of the motor body housing.

[0012] Preferably, the front sealing plate has a clearance hole in the middle for avoiding the output end of the motor body.

[0013] Preferably, the front dustproof net is arc-shaped and the rear dustproof net is circular.

[0014] Preferably, mounting feet are symmetrically fixed on both sides of the base.

[0015] This utility model has the following beneficial effects:

[0016] This invention discloses a heat dissipation device for an electric vehicle motor based on a liquid-cooled heat exchange plate. By installing a liquid-cooled heat exchange plate on the outer wall of the motor body, heat inside the motor body can be conducted to the outside of the motor body. By driving the cooling fan to rotate, the airflow on the surface of the liquid-cooled heat exchange plate can be accelerated, carrying away the heat on the liquid-cooled heat exchange plate, thereby accelerating the heat dissipation inside the motor body. The front and rear dust filters can reduce the amount of dust entering the interior of the arc-shaped cover with the flowing air. The heat exchange copper fins can conduct heat downwards from the inside of the motor body. At the same time, by supplying coolant to the interior of the connecting support, the coolant exchanges heat with the heat exchange copper fins, cooling the heat exchange copper fins and further accelerating the heat dissipation efficiency of the motor body. Furthermore, the S-shaped heat exchange channel can extend the flow path of the coolant in the connecting support, allowing the coolant to fully exchange heat with the heat exchange copper fins, further improving the heat dissipation effect on the motor body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader after removing the arc-shaped cover, front sealing plate and rear sealing plate.

[0020] Figure 3 This is a schematic diagram of the structure behind the arc-shaped cover, front sealing plate, and rear sealing plate in an electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to this utility model.

[0021] Figure 4 This is a top view of the internal structure of the connecting support in a heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader, according to this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 11. T-shaped connecting slide; 12. Mounting feet; 13. Liquid inlet branch pipe; 14. Liquid outlet branch pipe; 2. Motor body; 21. Connecting support; 22. Liquid-cooled heat spreader; 23. Heat exchange copper fins; 24. S-shaped heat exchange channel; 3. Arc-shaped cover; 31. T-shaped connecting slider; 4. Screws; 5. Front sealing plate; 51. Front dustproof net; 52. Clearance hole; 6. Rear sealing plate; 61. Rear dustproof net; 7. Connecting seat; 8. Cooling fan. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 As shown, this utility model provides a technical solution:

[0026] A heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader includes a base 1, a motor body 2 fixedly connected to the top of the base 1, a connecting support 21 fixedly installed at the bottom of the motor body 2, a liquid-cooled heat spreader 22 evenly fixedly installed on the outer wall of the motor body 2, a cooling fan 8 fixedly installed on the rear side of the motor body 2 (the cooling fan 8 is existing technology, and its model can be selected according to requirements), and the cooling fan 8 is controlled by an external controller and can rotate together with the rotation of the motor body 2; details are omitted here. A connecting seat 7 is fixedly connected to the rear side of the motor body 2, and the cooling fan 8 is fixedly installed on the connecting seat 7. An arc-shaped cover 3 is fitted over the outside of the motor body 2, and the bottom of the arc-shaped cover 3 is connected to the base. 1. Sliding connection: T-shaped connecting sliders 31 are symmetrically arranged at the bottom of the arc-shaped cover 3. The T-shaped connecting sliders 31 slide in conjunction with the T-shaped connecting grooves 11 opened at the top of the base 1. The front end face of the arc-shaped cover 3 is flush with the front end face of the base 1, and the rear end face of the arc-shaped cover 3 is flush with the rear end face of the base 1. A front sealing plate 5 is fixedly connected to the front side of the arc-shaped cover 3 by screws 4. The rear side wall of the front sealing plate 5 is in contact with the front end face of the motor body 2 housing. A front dustproof net 51 is provided on the front sealing plate 5 on the front side of the liquid cooling heat spreader 22. The front dustproof net 51 is arc-shaped. An avoidance hole 52 for avoiding the output end of the motor body 2 is opened in the middle of the front sealing plate 5. A rear sealing plate 6 is fixedly connected to the rear side of the arc-shaped cover 3 by screws 4. Cooling fan A rear dustproof net 61 is provided on the rear sealing plate 6 on the rear side of the motor body 2. The rear dustproof net 61 is circular. By setting a liquid-cooled heat dissipation plate 22 on the outer wall of the motor body 2, the heat inside the motor body 2 can be conducted to the outside of the motor body 2. By driving the cooling fan 8 to rotate, the air flow on the surface of the liquid-cooled heat dissipation plate 22 can be accelerated, and the heat on the liquid-cooled heat dissipation plate 22 can be carried away, thereby accelerating the heat dissipation inside the motor body 2. The front dustproof net 51 and the rear dustproof net 61 can reduce the amount of dust entering the interior of the arc-shaped cover 3 with the flowing air. The base 1 is symmetrically fixed with mounting feet 12 on both sides. During use, when the motor body 2 rotates, the cooling fan 8 is simultaneously powered on and rotated. The heat generated inside the motor body 2 can be conducted to the outside of the motor body 2 through the liquid cooling heat spreader 22. The rotation of the cooling fan 8 can drive the external air from the front dust filter 51 into the arc-shaped cover 3 and out from the rear dust filter 61. During this process, the rapidly flowing air inside the arc-shaped cover 3 can carry away the heat on the surface of the liquid cooling heat spreader 22, thereby accelerating the heat dissipation inside the motor body 2. The front dust filter 51 and the rear dust filter 61 can reduce the amount of dust entering the interior of the arc-shaped cover 3 with the air. After a period of time, the front cover plate 5, the arc-shaped cover 3 and the rear cover plate 6 can be removed by unscrewing the screw 4, and the dust on the front dust filter 51, the rear dust filter 61 and the liquid cooling heat spreader 22 can be cleaned.

[0027] The lower part of the connecting support 21 is embedded and fixed in the base 1. Heat exchange copper plates 23 are staggered and fixedly arranged on the inner wall of the connecting support 21. The inner side wall of the connecting support 21 and several heat exchange copper plates 23 together form an S-shaped heat exchange channel 24. The top of the heat exchange copper plates 23 is fixedly mounted on the motor body 2. An inlet branch pipe 13 and an outlet branch pipe 14 are fixedly arranged on both sides of the base 1. One end of the inlet branch pipe 13 and the outlet branch pipe 14 are connected to the interior of the connecting support 21. One end of the inlet branch pipe 13 is connected to the inlet end of the S-shaped heat exchange channel 24, and one end of the outlet branch pipe 14 is connected to the outlet end of the S-shaped heat exchange channel 24. The other ends of the inlet branch pipe 13 and the outlet branch pipe 14 are connected to an external coolant circulation device, enabling the supply of coolant to the interior of the connecting support 21 through the heat exchange copper plates 23. The system can conduct heat downwards from the motor body 2, and simultaneously deliver coolant to the connecting support 21 through the inlet branch pipe 13, allowing the coolant to exchange heat with the heat exchange copper fins 23, thus cooling the copper fins 23 and further accelerating the heat dissipation efficiency of the motor body 2. Furthermore, the S-shaped heat exchange channel 24 extends the flow path of the coolant in the connecting support 21, allowing the coolant to fully exchange heat with the heat exchange copper fins 23, further improving the heat dissipation effect on the motor body 2. The heat generated during the rotation of the motor body 2 can also be conducted downwards through the heat exchange copper fins 23 to the connecting support 21, where it can exchange heat with the coolant flowing in the S-shaped heat exchange channel 24, cooling the copper fins 23 and further accelerating the heat dissipation efficiency of the motor body 2.

[0028] Working principle: During use, as the motor body 2 rotates, the cooling fan 8 is simultaneously energized and rotates. The heat generated inside the motor body 2 is conducted to the outside of the motor body 2 through the liquid-cooled heat spreader 22. The rotation of the cooling fan 8 draws external air from the front dust filter 51 into the arc-shaped cover 3 and out through the rear dust filter 61. During this process, the rapidly flowing air inside the arc-shaped cover 3 carries away heat from the surface of the liquid-cooled heat spreader 22, thereby accelerating the heat dissipation from the inside of the motor body 2 through the front dust filter 51 and the rear dust filter 61. This reduces the amount of dust entering the interior of the arc-shaped cover 3 with the air. After a period of time, the front cover 5, the arc-shaped cover 3, and the rear cover 6 can be removed by unscrewing the screws 4. The dust on the front dust filter 51, the rear dust filter 61, and the liquid-cooled heat exchange plate 22 can be cleaned. The heat generated during the rotation of the motor body 2 can be conducted downwards to the connecting support 21 through the heat exchange copper plate 23, and can exchange heat with the coolant flowing in the S-shaped heat exchange channel 24 to cool the heat exchange copper plate 23, thereby further accelerating the heat dissipation efficiency of the motor body 2.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader, comprising a base (1), wherein a motor body (2) is fixedly connected to the top of the base (1), characterized in that: A connecting support (21) is fixedly installed at the bottom of the motor body (2). A liquid-cooled heat spreader plate (22) is uniformly fixedly installed on the outer wall of the motor body (2). A cooling fan (8) is fixedly installed on the rear side of the motor body (2). An arc-shaped cover (3) is fitted on the outside of the motor body (2). The bottom of the arc-shaped cover (3) is slidably connected to the base (1). A front sealing plate (5) is fixedly connected to the front side of the arc-shaped cover (3) by screws (4). A front dustproof net (51) is provided on the front sealing plate (5) on the front side of the liquid-cooled heat spreader plate (22). The rear side of the arc-shaped cover (3) is fixedly connected by screws. The nail (4) is fixedly connected to the rear sealing plate (6). The rear sealing plate (6) on the rear side of the cooling fan (8) is provided with a rear dustproof net (61). The lower part of the connecting support (21) is embedded and fixed in the base (1). The heat exchange copper sheet (23) is fixedly and interlaced on the inner wall of the connecting support (21). The top of the heat exchange copper sheet (23) is fixedly set on the motor body (2). The two sides of the base (1) are respectively fixedly provided with liquid inlet branch pipe (13) and liquid outlet branch pipe (14). One end of the liquid inlet branch pipe (13) and the liquid outlet branch pipe (14) are both connected to the inside of the connecting support (21).

2. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, The inner wall of the connecting support (21) and several heat exchange copper plates (23) together form an S-shaped heat exchange channel (24).

3. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 2, characterized in that, One end of the liquid inlet branch pipe (13) is connected to the liquid inlet end of the S-shaped heat exchange channel (24), and one end of the liquid outlet branch pipe (14) is connected to the liquid outlet end of the S-shaped heat exchange channel (24).

4. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, The bottom of the arc-shaped cover (3) is symmetrically provided with T-shaped connecting sliders (31), which slide in cooperation with the T-shaped connecting groove (11) opened on the top of the base (1).

5. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, A connecting seat (7) is fixedly connected to the rear side of the motor body (2), and the cooling fan (8) is fixedly installed on the connecting seat (7).

6. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, The front end face of the arc-shaped cover (3) is flush with the front end face of the base (1), and the rear end face of the arc-shaped cover (3) is flush with the rear end face of the base (1).

7. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, The rear sidewall of the front sealing plate (5) is attached to the front end face of the outer shell of the motor body (2).

8. The electric vehicle motor heat dissipation device based on a liquid-cooled heat spreader according to claim 1, characterized in that, The front cover plate (5) has a clearance hole (52) in the middle for avoiding the output end of the motor body (2).

9. A heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader according to claim 1, characterized in that, The front dustproof net (51) is arc-shaped, and the rear dustproof net (61) is circular.

10. A heat dissipation device for an electric vehicle motor based on a liquid-cooled heat spreader according to claim 1, characterized in that, The base (1) is symmetrically fixed with mounting feet (12) on both sides.

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