WO2022037030A1

WO2022037030A1 - Heat dissipation device for electric vehicle controller

Info

Publication number: WO2022037030A1
Application number: PCT/CN2021/077566
Authority: WO
Inventors: 李华京
Original assignee: 广东高标电子科技有限公司
Priority date: 2020-08-17
Filing date: 2021-02-24
Publication date: 2022-02-24
Also published as: TWM616728U; CN212910542U

Abstract

A heat dissipation device for an electric vehicle controller, comprising: a heat dissipation base (1), which is provided for placing a controller (100) thereon, a metal heat dissipation tooth (101) being provided on the heat dissipation base (1), and the metal heat dissipation tooth (101) abutting against the controller (100); and an air cooling assembly (2), which comprises a mounting housing (21) and a fan (22), the fan (22) being provided in the mounting housing (21), the mounting housing (21) being mounted on the heat dissipation base (1) and being located on an outer side of the metal heat dissipation teeth (101), and the air cooling assembly (2) being provided with an air inlet (212) and an air outlet (214).

Description

Electric vehicle controller cooling device

This application claims the priority of the Chinese patent application with an application date of August 17, 2020 and an application number of 202021711024.5, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of electric vehicles, for example, to a heat dissipation device for an electric vehicle controller.

Background technique

Electric vehicles, namely electric-driven vehicles, have become one of the main choices of transportation for Chinese residents due to their convenient use and low cost.

The electric vehicle controller is the core control device used to control the start, operation, advance and retreat, speed, stop of the electric vehicle motor and other electronic devices of the electric vehicle. It is like the brain of the electric vehicle and is an important part of the electric vehicle.

When the electric vehicle is under heavy load and climbing for a long time, its heat generation is very large. If the heat cannot be dissipated from the electric vehicle controller in time, the controller is prone to overheating, and the working efficiency of the controller is reduced, which will trigger the Overheating protection of the controller or burning out electrical components will seriously affect the working stability and service life of the electric vehicle controller, and bring certain safety risks to the driver.

SUMMARY OF THE INVENTION

The application provides a heat dissipation device for an electric vehicle controller, which can improve the heat dissipation efficiency, ensure the working efficiency of the controller, avoid damage to electrical components due to overheating, and improve work stability and service life.

An embodiment provides a heat dissipation device for an electric vehicle controller, including:

a heat dissipation base configured to place the controller, the heat dissipation base is provided with metal heat dissipation teeth, and the metal heat dissipation teeth are in contact with the controller; and

The air-cooling assembly includes an installation case and a fan, the fan is arranged in the installation case, the installation case is installed on the heat dissipation base and is located outside the metal heat dissipation teeth, and the air-cooled assembly is provided with There are air inlets and air outlets.

Description of drawings

1 is a schematic structural diagram of a heat dissipation device for an electric vehicle controller provided in Embodiment 1 of the present application;

FIG. 2 is an exploded schematic view of the heat dissipation device of the electric vehicle controller provided in the first embodiment of the present application;

3 is a cross-sectional view of a heat dissipation device for an electric vehicle controller provided in Embodiment 1 of the present application;

4 is a schematic structural diagram of a mounting shell provided in Embodiment 1 of the present application;

5 is a schematic diagram of a partial structure of the air-cooled assembly provided in Embodiment 1 of the present application;

6 is a schematic structural diagram of a heat dissipation device for an electric vehicle controller provided in Embodiment 2 of the present application;

FIG. 7 is an exploded schematic diagram of a heat dissipation device for an electric vehicle controller provided in Embodiment 2 of the present application.

In the picture:

100. Controller;

1. Heat dissipation base; 101. Metal heat dissipation teeth;

2. Air cooling assembly; 21. Mounting shell; 211, Mounting seat; 212, Air inlet; 213, Guide groove; 214, Air outlet; 215, First limit buckle; 216, Fastening buckle; 217, Section Two limit buckles; 218, installation slot; 22, fan; 23, windshield; 231, guide plate; 24, ventilation cover; 241, through hole; 25, waterproof cover.

detailed description

Example 1

As shown in FIG. 1 to FIG. 5 , this embodiment provides a heat dissipation device for an electric vehicle controller, which is set to dissipate and cool down the electric vehicle controller 100 to ensure that the controller 100 can work at a normal temperature, and the electric vehicle controller dissipates heat The device includes a heat dissipation base 1 and an air cooling assembly 2, the heat dissipation base 1 is set to place the controller 100, the heat dissipation base 1 is provided with metal heat dissipation teeth 101, the metal heat dissipation teeth 101 are in contact with the controller 100, and the air cooling assembly 2 includes a mounting shell 21 and a fan 22. The fan 22 is installed in the installation shell 21. The installation shell 21 is installed on the heat dissipation base 1 and is located outside the metal heat dissipation teeth 101. The air cooling component 2 is provided with an air inlet 212 and an air outlet 214.

The heat dissipation device of the electric vehicle controller provided in this embodiment is in contact with the controller 100 through the metal heat dissipation teeth 101 with good thermal conductivity, and the heat of the controller 100 is conducted to the outside of the heat dissipation base 1, and then the air cooling component 2 accelerates the metal heat dissipation teeth. The air flow on the surface of 101 quickly takes away the heat dissipated by the metal radiating teeth 101, thereby accelerating the cooling efficiency of the metal radiating teeth 101, and at the same time, the cooling efficiency of the controller 100 is also improved, ensuring the working efficiency of the controller 100, avoiding the The electrical components in the controller 100 are damaged due to overheating, which improves the working stability and service life of the controller 100 .

Optionally, the heat dissipation base 1 is provided with metal heat dissipation teeth 101 on opposite sides, and the metal heat dissipation teeth 101 are made of iron or aluminum alloy. Improve heat dissipation efficiency.

Optionally, as shown in FIG. 2 to FIG. 4 , the mounting shell 21 is provided with a mounting seat 211 configured to install the fan 22 , and the mounting seat 211 is provided with a plurality of air inlets 212 . In one embodiment, both ends of the installation shell 21 are provided with air outlets 214, and the air inlets 212 communicate with the air outlets 214 through the gap between the installation shell 21 and the metal heat dissipation teeth 101 to form a heat dissipation channel. in the cooling channel. In this embodiment, the fan 22 blows air toward the metal radiating teeth 101, and sucks air at room temperature from the air inlet 212, and the air absorbs heat from the metal radiating teeth 101 in the process of flowing along the heat dissipation channel, and finally flows out from the air outlet 214 to carry the heat. Take the heat.

Optionally, as shown in FIG. 2 , the air-cooling assembly 2 further includes an air baffle 23 . The air baffle 23 is detachably connected to the installation shell 21 and is configured to block the wind blown by the fan 22 from leaking from the upper end of the installation shell 21 . In order to keep the complete air duct intact, the mounting seat 211 is provided with a guide groove 213 , and the wind deflector 23 is provided with a guide piece 231 which can be inserted into the guide groove 213 .

Optionally, the installation seat 211 is provided with a first limit buckle 215 , and the fan 22 is fixed in the installation seat 211 through the first limit buckle 215 .

In one embodiment, the two ends of the wind deflector 23 are provided with buckles. When installing the air-cooling assembly 2, the fan 22 is first installed into the mounting seat 211, so that the first limit buckle 215 is locked to the fan 22. Then, the guide pieces 231 on the wind deflector 23 are inserted into the guide grooves 213 , so that the buckles at both ends of the wind deflector 23 are snapped with the mounting seat 211 .

Optionally, a side surface of the mounting seat 211 is provided with mounting holes, and the fan 22 can be installed in the mounting seat 211 through the mounting holes. When the fan 22 needs to be maintained, the fan 22 can be disassembled and assembled directly through the installation hole without disassembly and assembly of the installation casing 21 , which improves the efficiency of disassembly, assembly and maintenance of the fan 22 .

Optionally, as shown in FIG. 5 , the air-cooling assembly 2 further includes a waterproof cover 25 , which is installed on the installation shell 21 and is located outside the installation position of the fan 22 , and a labyrinth waterproof structure is provided on the waterproof cover 25 . The provision of the labyrinth waterproof structure prevents the water from the outside from sputtering into the mounting seat 211 along a straight line or an arc curve, and does not affect the fan 22 to suck air into the heat dissipation channel, thereby improving the waterproof performance of the air-cooled assembly 2 .

Optionally, the waterproof cover 25 is connected with the installation shell 21 through snaps.

Optionally, the installation shell 21 is detachably connected to the heat dissipation base 1 through the fastening buckles 216 , and both ends of the installation shell 21 in the length direction are provided with second limit buckles 217 , and the second limit buckles 217 are provided. In order to limit the displacement of the mounting shell 21 along its length direction.

Optionally, the mounting shell 21 is made of plastic, which is simple in shape, low in manufacturing cost, good in corrosion resistance and good in insulation.

Embodiment 2

As shown in FIGS. 6-7 , on the basis of the heat dissipation device for the electric vehicle controller provided in the first embodiment, this embodiment provides another heat dissipation device for the electric vehicle controller, which is similar to the heat dissipation device for the electric vehicle controller provided in the first embodiment. The difference between the devices is that the mounting shell 21 is not provided with a mounting seat 211, but is provided with a mounting slot 218 for mounting the fan 22. The air-cooling assembly 2 further includes a ventilation cover 24. The ventilation cover 24 is detachably connected to the mounting slot 218 and is located at On the outside of the mounting case 21 , the ventilation cover 24 is provided with a plurality of through holes 241 , and the ventilation cover 24 can limit the position of the fan 22 in the mounting groove 218 . The fan 22 inhales the outside air through the through hole 241 on the ventilation hood 24, and the air absorbs heat from the metal heat dissipation teeth 101 during the process of flowing along the heat dissipation channel, and finally flows out from the air outlet 214 to take away the heat. When maintenance of the fan 22 is required At this time, the ventilation cover 24 can be directly disassembled to disassemble and assemble the fan 22 without disassembling and assembling the installation casing 21 , thereby improving the efficiency of disassembling and maintaining the fan 22 .

Optionally, the ventilation cover 24 is connected with the mounting groove 218 through snaps.

Claims

A heat dissipation device for an electric vehicle controller, comprising:

A heat-dissipating base (1) is provided for placing a controller (100), the heat-dissipating base (1) is provided with metal heat-dissipating teeth (101), and the metal heat-dissipating teeth (101) are in contact with the controller (100) ;as well as

An air-cooling assembly (2) includes an installation casing (21) and a fan (22), the fan (22) is arranged in the installation casing (21), and the installation casing (21) is installed on the heat dissipation base (21). 1), and is located on the outer side of the metal heat dissipation teeth (101), the air cooling assembly (2) is provided with an air inlet (212) and an air outlet (214).
The heat dissipation device for an electric vehicle controller according to claim 1, wherein a mounting seat (211) is provided on the mounting shell (21), and the mounting seat (211) is configured to mount the fan (22), so The mounting seat (211) is provided with a plurality of air inlets (212).
The heat dissipation device for an electric vehicle controller according to claim 2, wherein the air outlets (214) are respectively provided at both ends of the installation shell (21), and the plurality of air inlets (212) pass through the installation The gap between the shell (21) and the metal heat dissipation teeth (101) is communicated with the air outlet (214) to form a heat dissipation channel, and the fan (22) is arranged in the heat dissipation channel.
The heat dissipation device for an electric vehicle controller according to claim 3, wherein the air cooling assembly (2) further comprises:

A wind deflector (23), the wind deflector (23) is detachably connected to the mounting shell (21), and is arranged to block the wind blown by the fan (22) from the upper end of the mounting shell (21) to keep the cooling air duct intact, the mounting seat (211) is provided with a guide groove (213), and the wind deflector (23) is provided with a guide piece inserted into the guide groove (213) (231).
The heat dissipation device for an electric vehicle controller according to claim 2, wherein a side surface of the mounting seat (211) is provided with a mounting hole, and the fan (22) can be installed in the mounting seat (211 through the mounting hole) )middle.
The heat dissipation device for an electric vehicle controller according to claim 2, wherein a first limit clip (215) is provided in the mounting seat (211), and the fan (22) passes through the first limit clip The buckle (215) is fixed in the mounting seat (211).
The heat dissipation device for an electric vehicle controller according to claim 1, wherein an installation groove (218) is provided on the installation shell (21), and the installation groove (218) is configured to install the fan (22), so The air cooling component (2) also includes:

A ventilation cover (24) is detachably connected to the installation groove (218) and is located on the outer side of the installation shell (21). The ventilation cover (24) is provided with a plurality of through holes (241). A ventilation hood (24) can limit the position of the fan (22) in the mounting slot (218).
The heat dissipation device for an electric vehicle controller according to claim 7, wherein the ventilation cover (24) is connected with the mounting groove (218) through a snap.
The heat dissipation device for an electric vehicle controller according to any one of claims 1-8, wherein the air cooling assembly (2) further comprises:

A waterproof cover (25) is mounted on the mounting shell (21) and is located outside the mounting position of the fan (22) on the mounting shell (21), the waterproof cover (25) is provided with a labyrinth Waterproof construction.
The heat dissipation device for an electric vehicle controller according to any one of claims 1 to 8, wherein the mounting shell (21) is detachably connected to the heat dissipation base (1) through a fastening clip (216), and the The two ends of the installation shell (21) in the longitudinal direction are respectively provided with second limit buckles (217), and the second limit buckles (217) are arranged to restrict the installation shell (21) along the installation Displacement in the length direction of the shell (21).