Heat dissipation structure of motor and electric control two-in-one driving assembly and vehicle

Abstract

The utility model discloses a heat dissipation structure of a motor and electric control two-in-one driving assembly and a vehicle, and the heat dissipation structure comprises a machine shell, a heat dissipation assembly and a heat dissipation assembly, the cooling circulating water channel is formed on the machine shell; one end of the first heat conductor is used for being connected with a shell of the electric controller; one end of the second heat conductor is connected with a shell of the cooling circulation water channel, and the other end of the second heat conductor is connected with the first heat conductor. Compared with the prior art, heat conduction is achieved by arranging the first heat conductor and the second heat conductor between the cooling circulation water channel and the electric controller, heat of the electric controller is conducted to the cooling circulation water channel through the first heat conductor and the second heat conductor, and refrigerant in the cooling circulation water channel flows to take away the heat. Therefore, the heat dissipation of the electric controller is enhanced, the temperature rise problem of the electric controller is optimized, and the driving assembly can provide higher power.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a heat dissipation structure of a motor and electronic control two-in-one drive assembly and a vehicle. Background Art

[0002] In the process of electrification of electric vehicles, two-in-one motor products combine the motor and the electronic controller into an integrated structure. The motor and the electronic controller have power loss problems during operation. According to the application docking survey based on customer needs, the current demand for higher power drive assemblies is mainly limited by the problem of temperature rise caused by the electronic controller's inability to withstand higher speeds. Utility Model Content

[0003] The purpose of the utility model is to provide a heat dissipation structure of a two-in-one motor and electronic control drive assembly and a vehicle to solve the technical problems in the prior art. It can optimize the temperature rise problem of the electronic controller and enable the drive assembly to provide greater power.

[0004] In a first aspect, the present invention provides a heat dissipation structure for a motor and electronic control two-in-one drive assembly, comprising:

[0005] a housing having a mounting cavity;

[0006] A cooling circulation water channel is formed on the casing;

[0007] a first heat conductor, one end of which is used to be connected to the housing of the electric controller;

[0008] A second heat conductor, one end of the second heat conductor is connected to the outer shell of the cooling circulation water channel, and the other end of the second heat conductor is connected to the first heat conductor.

[0009] In the heat dissipation structure of the motor and electronic control two-in-one drive assembly as described above, preferably, the first heat conductor is a plate structure, and the largest surface end of the first heat conductor is in contact with the housing of the electronic controller.

[0010] In the heat dissipation structure of the motor and electronic control two-in-one drive assembly as described above, preferably, one end of the second heat conductor is in contact with the outer circumferential surface of the cooling circulation water channel, and the other end of the second heat conductor is in contact with the plate surface of the first heat conductor.

[0011] As described above, in the heat dissipation structure of the motor and electronic control two-in-one drive assembly, preferably, a plurality of the first heat conductor and the second heat conductor are provided, and the plurality of the first heat conductors and the second heat conductors are distributed in sequence along the extension direction of the cooling circulation water channel.

[0012] A heat dissipation structure for a motor and electronic control integrated drive assembly as described above, wherein, preferably, a first notch is provided on the outer shell of the electronic controller, and the first heat conducting body is fitted into the first notch.

[0013] A heat dissipation structure for a motor and electronic control integrated drive assembly as described above, wherein, preferably, a first notch is provided on the inner wall surface of the first notch, and the first notch penetrates through the outer shell of the electronic controller.

[0014] A heat dissipation structure for a motor and electronic control integrated drive assembly as described above, wherein, preferably, the first heat conducting body is made of an insulating and heat conducting material.

[0015] A heat dissipation structure for a motor and electronic control integrated drive assembly as described above, wherein, preferably, the cooling circulation water channel is integrally formed on the machine shell.

[0016] A heat dissipation structure for a motor and electronic control integrated drive assembly as described above, wherein, preferably, both the first heat conducting body and the second heat conducting body are arranged near the liquid inlet end of the cooling circulation water channel.

[0017] In a second aspect, the present invention further provides a vehicle, including a motor and electronic control integrated drive assembly, and the heat dissipation structure of the motor and electronic control integrated drive assembly is the aforementioned heat dissipation structure.

[0018] Compared with the prior art, the present invention realizes heat conduction by arranging a first heat conducting body and a second heat conducting body between the cooling circulation water channel and the electronic controller. The heat of the electronic controller is conducted to the cooling circulation water channel through the first heat conducting body and the second heat conducting body, and the flowing refrigerant in the cooling circulation water channel takes away the heat, thereby strengthening the heat dissipation of the electronic controller, optimizing the temperature rise problem of the electronic controller, and enabling the drive assembly to provide a greater power. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of the heat dissipation structure provided by the embodiment of the present invention;

[0020] Figure 2 is a three-dimensional view of the first heat conducting body provided by the embodiment of the present invention when arranged on the electronic controller (selected as a filter);

[0021] Figure 3 is a three-dimensional view of the electronic controller (selected as a filter) provided by the embodiment of the present invention in a state where one first heat conducting body is hidden;

[0022] Figure 4 is a three-dimensional view of the machine shell provided by the embodiment of the present invention.

[0023] Description of the reference numerals:

[0024] 10 - Housing, 11 - Installation cavity, 12 - Cooling circulation water channel;

[0025] 20 - Electric controller, 21 - First notch, 22 - First gap;

[0026] 30 - First heat conductor;

[0027] 40 - Second heat conductor. Specific embodiments

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0029] Refer to Figures 1 to 4 As shown, the embodiments of the present invention provide a heat dissipation structure for a motor and electric controller integrated drive assembly, including a housing 10, a cooling circulation water channel 12, a first heat conductor 30, and a second heat conductor 40, wherein:

[0030] The housing 10 is preferably integrally cast and formed from an aluminum alloy material. There is an installation cavity 11 inside the housing 10, and a motor (not shown) and an electric controller 20 are both received, installed, and fixed in the installation cavity 11.

[0031] The cooling circulation water channel 12 is formed on the housing 10. The function of the cooling circulation water channel 12 is that a refrigerant flows through it, and the refrigerant can perform heat exchange with the heat sources of the motor and the electric controller 20, thereby taking away the heat generated by the motor and the electric controller 20 and reducing the temperature of the motor and the electric controller 20.

[0032] One end of the first heat conductor 30 is connected to the outer shell of the electric controller 20. In the embodiments provided by the present invention, taking the first heat conductor 30 being connected to a filter as an example for illustration, the filter is a sub-component of the electric controller 20. Those skilled in the art can know that the first heat conductor 30 can also act on more other sub-components inside the electric controller 20, which is not limited herein.

[0033] One end of the second heat conductor 40 is connected to the outer shell of the cooling circulation water channel 12, and the other end of the second heat conductor 40 is connected to the first heat conductor 30. The second heat conductor 40 plays a role in supporting the first heat conductor 30 on the one hand and can increase the heat dissipation area on the other hand. The heat of the electric controller 20 is sequentially conducted to the refrigerant in the cooling circulation water channel 12 through the first heat conductor 30 and the second heat conductor 40, improving the heat dissipation effect of the electric controller 20 and increasing the heat exchange efficiency of the electric controller 20.

[0034] Refer to Figure 2As shown, in the embodiment provided by the present invention, the first heat conductor 30 is preferably a plate structure. The largest surface end of the first heat conductor 30 is used to fit with the housing of the electronic controller 20. This maximizes the contact area with the heat source of the electronic controller 20. Per unit time, more heat is transferred to the first heat conductor 30, thereby improving the heat exchange efficiency. The first heat conductor 30 can also transfer heat to the second heat conductor 40 more quickly, thereby quickly reducing the temperature of the electronic controller 20.

[0035] Reference Figure 4 As shown, in the embodiment provided by the present invention, the cooling circulation water channel 12 is a tube structure, one end of the second heat conductor 40 is attached to the outer circumferential surface of the cooling circulation water channel 12, and the end of the second heat conductor 40 at least covers a portion of the outer circumferential surface of the cooling circulation water channel 12 to increase the heat exchange area with the cooling circulation water channel 12. The shape of the end of the second heat conductor 40 close to the cooling circulation water channel 12 is adapted to the structural shape of the cooling circulation water channel 12 to ensure that the heat of the second heat conductor 40 can be transferred to the refrigerant in the cooling circulation water channel 12 faster. The other end face of the second heat conductor 40 is a plate surface, which is attached to the plate surface of the first heat conductor 30 to ensure a larger contact area and achieve faster heat conduction.

[0036] Furthermore, a plurality of first heat conductors 30 and a plurality of second heat conductors 40 are provided, and the plurality of first heat conductors 30 and the plurality of second heat conductors 40 correspond to each other one by one and are sequentially distributed along the extension direction of the cooling circulation water channel 12. The plurality of first heat conductors 30 can be correspondingly attached to the plurality of heat sources of the electronic controller 20, or the plurality of first heat conductors 30 can be attached to a larger heat source, so that the heat of the heat source of the electronic controller 20 can be quickly and evenly conducted to the plurality of first heat conductors 30, thereby improving the heat exchange efficiency. In a feasible embodiment, referring to Figure 1 As shown, there are two first heat exchangers, which are arranged in parallel and spaced apart along the axis of the cooling circulation water channel 12. There are also two second heat exchangers, which are arranged in one-to-one correspondence with the first heat exchangers.

[0037] In order to fix the first heat conductor 30 on the housing of the electric controller 20 and maintain a large contact area between the first heat conductor 30 and the housing of the electric controller 20, in the embodiment provided by the present invention, a first recess 21 is provided on the housing of the electric controller 20. The first recess 21 is recessed in the housing of the electric controller 20. The inner contour of the first recess 21 is adapted to the outer contour of the first heat conductor 30 to form a maximum fit with the first heat conductor 30. The first heat conductor 30 is embedded in the first recess 21.

[0038] Further, refer to Figure 3As shown, a first notch 22 is provided on the inner wall surface of the first notch 21. The first notch 22 penetrates through the housing of the electric controller 20. In this way, part of the heat of the heat source of the electric controller 20 is conducted to the first heat conductor 30 through the housing of the electric controller 20, and another part directly reaches the first heat conductor 30 after passing through the first notch 22, realizing more efficient heat conduction. The shape and size of the first notch 22 can be adjusted according to actual needs and are not limited herein.

[0039] Preferably, the first heat conductor 30 is made of an insulating and heat-conducting material, which can conduct heat well while realizing leakage protection.

[0040] In the embodiment provided by the present invention, the cooling circulation water channel 12 is integrally formed on the machine shell 10. Part of the cooling circulation water channel 12 is located in the installation cavity 11, and another part is exposed to the outside. In this way, the refrigerant flowing in the cooling circulation water channel 12 can exchange heat with the outside, transfer the heat to the outside, reduce the temperature of the refrigerant, which will also help the first heat conductor 30 and the second heat conductor 40 transfer the heat to the refrigerant faster and reduce the temperature of the electric controller 20 faster.

[0041] In a feasible implementation manner, both the first heat conductor 30 and the second heat conductor 40 are arranged close to the liquid inlet end of the cooling circulation water channel 12. The temperature of the refrigerant at the liquid inlet end of the cooling circulation water channel 12 is lower than that at the liquid outlet end, which can achieve better heat transfer effect, higher heat dissipation efficiency, optimize the temperature rise problem of the electric controller 20, and enable the drive assembly to provide greater power.

[0042] The present invention also provides a vehicle, including a motor and electric control integrated drive assembly. The heat dissipation structure of the motor and electric control integrated drive assembly is the aforementioned heat dissipation structure. The heat dissipation structure realizes heat conduction by arranging the first heat conductor 30 and the second heat conductor 40 between the cooling circulation water channel 12 and the electric controller 20. The heat of the electric controller 20 is conducted to the cooling circulation water channel 12 through the first heat conductor 30 and the second heat conductor 40, and the flowing refrigerant in the cooling circulation water channel 12 takes away the heat, thereby strengthening the heat dissipation of the electric controller 20, optimizing the temperature rise problem of the electric controller 20, and enabling the drive assembly to provide greater power.

[0043] The structure, features and effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings. Any changes made according to the concept of the present invention, or modified into equivalent embodiments with equivalent changes, still within the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A heat dissipation structure for a motor and electronic control integrated drive assembly, characterized in that Comprising: A housing having an installation cavity; A cooling circulation water channel formed on the housing; A first heat conductor, one end of which is used to connect to the outer shell of the electric control device; A second heat conductor, one end of which is connected to the outer shell of the cooling circulation water channel, and the other end of which is connected to the first heat conductor.

2. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, characterized in that, The first heat conductor is in a plate structure, and the largest surface end of the first heat conductor is attached to the outer shell of the electric control device.

3. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 2, characterized in that, One end of the second heat conductor is attached to the outer circumferential surface of the cooling circulation water channel, and the other end of the second heat conductor is attached to the plate surface of the first heat conductor.

4. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, characterized in that A plurality of the first heat conductors and the second heat conductors are provided, and the plurality of the first heat conductors and the second heat conductors are sequentially distributed along the extending direction of the cooling circulation water channel.

5. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, wherein A first notch is provided on the outer shell of the electric control device, and the first heat conductor is fitted into the first notch.

6. The heat dissipation structure of the integrated motor and electric control drive assembly according to claim 5, characterized in that, A first gap is provided on the inner wall surface of the first notch, and the first gap penetrates through the outer shell of the electric control device.

7. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, characterized in that The first heat conductor is made of an insulating and heat-conducting material.

8. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, characterized in that, The cooling circulation water channel is integrally formed on the housing.

9. The heat dissipation structure of the integrated motor and electronic control drive assembly according to claim 1, characterized in that, Both the first heat conductor and the second heat conductor are arranged close to the liquid inlet end of the cooling circulation water channel.

10. A vehicle, characterized in that, Including a motor and electric control integrated drive assembly, and the heat dissipation structure of the motor and electric control integrated drive assembly is the heat dissipation structure according to any one of claims 1-9.

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