Heat dissipation and shock absorption assembly of electric compressor

Abstract

The utility model relates to a heat dissipation and shock absorption assembly of an electric compressor. The heat dissipation and shock absorption assembly comprises a shell. The top cover is connected to one side of the shell, a circuit board is arranged between the top cover and the shell, a power component is arranged on the circuit board, and an insulating heat conduction layer is arranged between the circuit board and the shell; the elastic heat dissipation piece is arranged between the top cover and the power component, the two opposite ends of the elastic heat dissipation piece abut against the top cover and the power component respectively, and the elastic heat dissipation piece is an insulator. According to the utility model, not only is the heat dissipation of power components in the electric compressor accelerated, but also the connection between the top cover and the shell is effectively enhanced, and the resonance phenomenon of the top cover and the shell is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a heat dissipation and vibration damping component for an electric compressor. Background Technology

[0002] As a key device that converts electrical energy into mechanical energy, the electric compressor's core function is to release energy through compressed gas to achieve heat exchange for various systems. Electric compressors have been widely used in various fields such as industry, medicine, and daily life. Currently, the performance requirements for electric compressors are becoming increasingly stringent, requiring both good heat dissipation performance and lower noise levels.

[0003] When an electric compressor is working, the internal power components generate heat. Excessive heat can damage these components. Current heat dissipation solutions involve placing a heat dissipation layer between the PCB board and the compressor housing, and then covering the PCB board with a top cover. The top cover is supported by the housing. During compressor operation, the top cover and the compressor housing resonate, leading to increased compressor noise. Furthermore, the refrigerant flow rate is currently slow and cannot quickly remove the heat from the power components, resulting in unsatisfactory heat dissipation for electric compressors. Summary of the Invention

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problems of slow refrigerant flow rate and poor heat dissipation of electric compressors in the prior art, and the top cover being connected to the shell only through the four sides, which causes resonance between the top cover and the shell and deteriorates the noise of the electric compressor. In this way, a heat dissipation and vibration damping component for electric compressor is provided, which not only accelerates the heat dissipation of the power components inside the electric compressor, but also effectively strengthens the connection between the top cover and the shell, and greatly reduces the resonance phenomenon between the top cover and the shell.

[0005] To solve the above-mentioned technical problems, this utility model provides a heat dissipation and vibration damping component for an electric compressor, comprising:

[0006] case;

[0007] A top cover is connected to one side of the housing. A circuit board is provided between the top cover and the housing. Power components are provided on the circuit board. An insulating and heat-conducting layer is provided between the circuit board and the housing.

[0008] An elastic heat sink is disposed between the top cover and the power component, with its two opposite ends abutting against the top cover and the power component, respectively. The elastic heat sink is an insulator.

[0009] In one embodiment of the present invention, the surface of the top cover is provided with a plurality of heat dissipation fins, and the plurality of heat dissipation fins are spaced apart along one direction.

[0010] In one embodiment of the present invention, the surface of the top cover is provided with a recess, and the heat dissipation fins are disposed in the recess, or the heat dissipation fins protrude from the surface of the top cover.

[0011] In one embodiment of this utility model, the edges of the heat dissipation fins are provided with rounded chamfers.

[0012] In one embodiment of this utility model, the heat dissipation fins are positioned directly opposite the elastic heat dissipation component.

[0013] In one embodiment of this utility model, the elastic heat dissipation component is configured as a block.

[0014] In one embodiment of the present invention, the interior of the housing is provided with a heat dissipation channel, and the heat dissipation channel contains a refrigerant.

[0015] In one embodiment of this utility model, the refrigerant includes liquid refrigerant and gaseous refrigerant.

[0016] In one embodiment of this utility model, the surface of the top cover is provided with an abutting plane, the abutting plane is disposed directly opposite the power component, and the elastic heat sink abuts against the abutting plane.

[0017] In one embodiment of this utility model, the elastic heat sink is bonded to the top cover and the power components by thermally conductive silicone grease.

[0018] In one embodiment of the present invention, an elastic heat dissipation member is provided between the top cover and the housing, and the elastic heat dissipation member abuts against the top cover and the housing.

[0019] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:

[0020] The heat dissipation and vibration damping component of the electric compressor described in this utility model provides an elastic heat sink in the middle of the top cover. The elastic heat sink supports the middle of the top cover and dampens the vibration of the top cover, greatly reducing the vibration in the middle of the top cover and thus reducing the resonance phenomenon between the top cover and the shell. The heat generated by the power components is often transferred to both sides through the insulating heat-conducting layer and the elastic heat sink, which improves the heat dissipation effect of the power components. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of the electric compressor in a preferred embodiment of the present invention;

[0023] Figure 2 for Figure 1 The cross-sectional view of the electric compressor shown is a structural schematic diagram.

[0024] Figure 3 for Figure 2 A partial enlarged view of the heat dissipation and vibration damping assembly shown;

[0025] Figure 4 for Figure 2 The diagram shows the structure of the top cover.

[0026] Explanation of reference numerals in the accompanying drawings: 1. Housing; 11. Heat dissipation channel; 2. Top cover; 21. Heat dissipation fins; 211. Rounded chamfer; 22. Recess; 23. Abutting surface; 3. Power components; 4. Elastic heat sink; 5. Circuit board; 6. Insulating and thermally conductive layer. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figure 3 As shown, in one embodiment of this utility model, a heat dissipation and vibration damping assembly for an electric compressor is disclosed, which is applied to an electric compressor. The heat dissipation and vibration damping assembly includes,

[0029] Casing 1;

[0030] A top cover 2 is connected to one side of the housing 1. A circuit board 5 is provided between the top cover 2 and the housing 1. Power components 3 are provided on the circuit board 5. An insulating and heat-conducting layer 6 is provided between the circuit board 5 and the housing 1.

[0031] An elastic heat sink 4 is disposed between the top cover 2 and the power component 3, and the two opposite ends of the elastic heat sink 4 abut against the top cover 2 and the power component 3 respectively. The elastic heat sink 4 is an insulator.

[0032] In this embodiment, the heat dissipation and vibration damping assembly for the electric compressor uses a housing 1 as the outer shell of the electric compressor, a circuit board 5 and power components 3 as the controller of the electric compressor, and a top cover 2 that is fixedly connected to the housing 1 around its perimeter with screws. When the electric compressor is running, due to the presence of an elastic heat sink 4 between the power components 3 and the top cover 2, the heat generated by the power components 3 inside the electric compressor is transferred to the housing 1 for heat dissipation through the insulating thermal conductive layer 6. On the other hand, the elastic heat sink 4 transfers the heat generated by the power components 3 inside the electric compressor to the top cover 2 for heat dissipation, achieving dual heat dissipation and improving the heat dissipation effect. The elastic heat sink 4 supports the middle of the top cover 2, which can reduce the amplitude of the middle of the top cover 2. The flexible damping effect of the elastic heat sink 4 reduces the vibration of the top cover 2, thereby reducing the resonance between the top cover 2 and the housing 1 when the compressor is running. The elastic heat sink 4 and the insulating thermal conductive layer 6 isolate the circuit board 5 from the housing 1 and the top cover 2, preventing leakage and improving heat dissipation efficiency.

[0033] In one embodiment of this utility model, the insulating and thermally conductive layer 6 is set as thermally conductive silicone grease, which has good insulation and thermal conductivity.

[0034] Reference Figure 3 As shown, in one embodiment of the present invention, the surface of the top cover 2 is provided with a plurality of heat dissipation fins 21. The surface of the top cover 2 is made into a strip-shaped concave-convex shape by using the heat dissipation fins 21 to increase the surface area of ​​the top cover 2, thereby improving the heat dissipation effect of the top cover 2. Moreover, the plurality of heat dissipation fins 21 are distributed at intervals along one direction, which is conducive to accelerating airflow and quickly carrying away the heat from the surface of the top cover 2.

[0035] In one embodiment of this utility model, the heat dissipation fins 21 and the top cover 2 are integrally formed.

[0036] Reference Figure 3 As shown, in one embodiment of the present invention, the surface of the top cover 2 is provided with four heat dissipation fins 21.

[0037] Reference Figure 3 As shown, in one embodiment of the present invention, the surface of the top cover 2 is provided with a recess 22, and the heat dissipation fins 21 are disposed in the recess 22, which reduces the protrusions on the surface of the top cover 2, avoids collision damage to the heat dissipation fins 21, and extends the service life.

[0038] In one embodiment of this utility model, the heat dissipation fins 21 protrude from the surface of the top cover 2, and the heat dissipation fins 21 are directly exposed to the airflow, which is more conducive to the contact between the heat dissipation fins 21 and the airflow, thereby improving the heat dissipation effect.

[0039] Reference Figure 3As shown, in one embodiment of this utility model, the edge of the heat dissipation fin 21 is provided with a rounded chamfer 211. The rounded chamfer 211 reduces airflow resistance and also reduces the sharp feeling of the heat dissipation fin 21, preventing the sharp edge from scratching the pipeline, etc.

[0040] Reference Figure 3 As shown, in one embodiment of this utility model, the heat dissipation fins 21 are positioned directly opposite the elastic heat dissipation component 4, shortening the distance between the elastic heat dissipation component 4 and the heat dissipation fins 21. The heat from the power component 3 is directly transferred from the elastic heat dissipation component 4 to the heat dissipation fins 21, reducing the heat transfer path.

[0041] Reference Figure 3 As shown, in one embodiment of this utility model, the elastic heat dissipation component 4 is configured as a block shape. The block structure has a large deformation and can provide uniform support force.

[0042] Reference Figure 3 As shown, in one embodiment of the present invention, the interior of the housing 1 is provided with a heat dissipation channel 11, and a refrigerant is provided in the heat dissipation channel 11 for circulating flow. The refrigerant is used to accelerate the transfer of heat from the housing 1 to the outside.

[0043] Furthermore, the refrigerant includes liquid refrigerant and gaseous refrigerant, which can adapt to different compressor power scenarios.

[0044] Reference Figure 4 As shown, the surface of the top cover 2 is provided with an abutting plane 23, which is positioned directly opposite the power component 3. The elastic heat sink 4 abuts against the abutting plane 23, and the abutting plane 23 ensures that the elastic heat sink 4 and the power component 3 are in close contact, preventing stress concentration in the elastic heat sink 4 from causing it to tilt.

[0045] Furthermore, the elastic heat sink 4 is made of silicone, which has the function of flexible shock absorption and can also isolate the power components 3 and the top cover 2.

[0046] Furthermore, the elastic heat sink 4 is bonded to the top cover 2 and the power component 3 with thermally conductive silicone grease to prevent displacement of the elastic heat sink 4 under vibration conditions and ensure long-term stability.

[0047] Furthermore, an elastic heat sink 4 is provided between the top cover 2 and the housing 1, and the elastic heat sink 4 abuts against the top cover 2 and the housing 1, so as to transfer a part of the pressure of the top cover 2 to the housing 1 through the elastic heat sink 4, thereby reducing the pressure of the top cover 2 on the power components 3.

[0048] The working principle of the heat dissipation and vibration damping component of the electric compressor described in this utility model is as follows:

[0049] After the controller of the electric compressor starts working, on the one hand, the heat generated by the power component 3 is transferred to the housing 1 through the insulating heat-conducting layer 6, and then to the heat dissipation channel 11 through the housing 1. The refrigerant in the heat dissipation channel 11 transfers the heat to the air. On the other hand, the heat generated by the power component 3 is transferred to the top cover 2 through the elastic heat dissipation component 4, and then to the air through the heat dissipation fins 21, thus completing the heat dissipation. At the same time, the elastic heat dissipation component 4 supports the top cover 2 from the middle, so that the top cover 2 is tightened towards the outside of the electric compressor. The elastic heat dissipation component 4 itself has a buffering effect, which can dampen the vibration of the top cover 2, reduce the vibration in the middle of the top cover 2, and effectively reduce the resonance phenomenon between the top cover 2 and the housing 1.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heat dissipation and vibration damping assembly for an electric compressor, characterized in that, include, case; A top cover is connected to one side of the housing. A circuit board is provided between the top cover and the housing. Power components are provided on the circuit board. An insulating and heat-conducting layer is provided between the circuit board and the housing. An elastic heat sink is disposed between the top cover and the power component, with its two opposite ends abutting against the top cover and the power component, respectively. The elastic heat sink is an insulator.

2. The heat dissipation and vibration damping assembly for an electric compressor according to claim 1, characterized in that, The surface of the top cover is provided with multiple heat dissipation fins, and the multiple heat dissipation fins are distributed at intervals along one direction.

3. The heat dissipation and vibration damping assembly for an electric compressor according to claim 2, characterized in that, The surface of the top cover has a recess, and the heat dissipation fins are disposed in the recess or protrude from the surface of the top cover.

4. The heat dissipation and vibration damping assembly for an electric compressor according to claim 2, characterized in that, The edges of the heat dissipation fins are rounded and chamfered.

5. The heat dissipation and vibration damping assembly for an electric compressor according to claim 2, characterized in that, The heat dissipation fins are positioned directly opposite the elastic heat dissipation component.

6. The heat dissipation and vibration damping assembly for an electric compressor according to claim 1, characterized in that, The elastic heat dissipation component is configured as a block.

7. The heat dissipation and vibration damping assembly for an electric compressor according to claim 1, characterized in that, The housing has a heat dissipation channel inside, and the heat dissipation channel contains a refrigerant.

8. The heat dissipation and vibration damping assembly for an electric compressor according to claim 7, characterized in that, The refrigerant includes liquid refrigerant and gaseous refrigerant.

9. The heat dissipation and vibration damping assembly for an electric compressor according to claim 1, characterized in that, The surface of the top cover is provided with an abutting plane, which is positioned directly opposite the power component, and the elastic heat sink abuts against the abutting plane.

10. A heat dissipation and vibration damping assembly for an electric compressor according to claim 1, characterized in that, The elastic heat sink is bonded to the top cover and the power components using thermally conductive silicone grease.

Images