A motor housing with a cooling structure and a motor

Abstract

The utility model discloses a kind of motor casing and motor with cooling structure, motor casing includes shell body and end cap, the shell body has accommodating cavity, its outside circumferential liquid flow passage is provided with, the liquid flow passage is by one end liquid inlet, another end liquid outlet;The end cap includes front end cap and rear end cap, they are respectively sealed and installed in the both ends of the shell body, the inside of the end cap is respectively set groove, after the end cap and shell body are installed, the groove and corresponding liquid flow passage are installed correspondingly, the front end cap is equipped with liquid inlet and liquid outlet, the liquid inlet and liquid outlet are connected with any groove, and both staggered arrangement;The liquid inlet, groove and liquid flow passage and liquid outlet form multiple S-shaped continuous liquid flow path.The utility model realizes the heat dissipation of shell body all-around, reaches the effect that motor circumferential and two ends are simultaneously heat dissipated;Realize the integrated molding processing of groove and end cap, save processing procedure.

Description

Technical Field

[0001] This utility model relates to the field of motors, specifically to a motor housing with a cooling structure and a motor. Background Technology

[0002] Motors generate a lot of heat during operation. If this heat cannot be dissipated, it will cause the motor circuit board to burn out, affecting the motor's performance. Prolonged exposure to high temperatures and heat can also cause circuit aging, unstable motor operation, and other problems, affecting the motor's normal operation and reducing its lifespan.

[0003] Some water-cooled motors are already on the market, achieving efficient heat dissipation by having liquid flow inside the casing to carry away heat. However, existing water-cooled motors have the following problems:

[0004] The liquid flow channel is poorly designed, only achieving localized heat dissipation and failing to achieve full circumferential heat dissipation of the motor;

[0005] The sealing part of the liquid flow channel and the end cap are separate structures, which have poor sealing performance and are prone to liquid leakage, causing short circuits in the motor; and also increase the processing steps.

[0006] The lack of heat dissipation structures at both ends of the cover causes heat to concentrate at both ends, affecting the normal operation of the motor.

[0007] Therefore, there is an urgent need to provide a new motor housing with a cooling structure and a motor to solve the above-mentioned technical problems. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a motor housing and a motor with a cooling structure. The liquid flow channel is connected by end caps at both ends of the motor, eliminating the need for additional connecting parts, reducing processing difficulty and saving materials. The liquid flow channel is reasonably set up to achieve a uniform layout in the entire circumference, which greatly improves the heat dissipation performance of the motor.

[0009] The technical solution adopted by this utility model to solve its technical problem is as follows: a motor housing with a cooling structure, including a housing body and end caps. The housing body has a receiving cavity, and a liquid flow channel is arranged circumferentially on its outside. The liquid flow channel has liquid inlet at one end and liquid outlet at the other end. The end caps include a front end cap and a rear end cap, which are respectively sealed and installed at both ends of the housing body. Grooves are respectively opened on the inner side of the end caps. After the end caps are installed with the housing body, the grooves are installed corresponding to the liquid flow channels. The front end caps have a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet are connected to any groove, and the two are staggered. The liquid inlet, the groove, the liquid flow channel, and the liquid outlet form multiple S-shaped continuous liquid flow paths.

[0010] Furthermore, the diameter of the liquid flow channel connecting the inlet and outlet is larger than the diameter of other liquid flow channels.

[0011] Furthermore, the grooves on the front and rear covers are offset in the circumferential direction.

[0012] Furthermore, sealing gaskets are respectively provided between the front cover, the rear cover and the shell body.

[0013] Furthermore, heat sinks are provided on the exterior of the housing.

[0014] Furthermore, the inlet and outlet are symmetrically arranged at 180 degrees, with the inlet connected to one of the grooves and the outlet connected to the other groove.

[0015] Furthermore, the groove communicating with the liquid inlet and the groove communicating with the liquid outlet are respectively connected to two liquid flow channels to achieve liquid diversion.

[0016] Furthermore, a cooling mechanism is also provided, wherein the liquid inlet is connected to the liquid outlet of the cooling mechanism, and the liquid outlet is connected to the liquid inlet of the cooling mechanism.

[0017] An electric motor includes a housing, a stator, a rotor, and a motor shaft, wherein the housing is the housing with a cooling structure described above.

[0018] The beneficial effects of this utility model are: 1) By arranging multiple axial liquid flow channels around the outer periphery of the shell body, the shell body can achieve all-round heat dissipation; 2) By using multiple grooves arranged circumferentially on the inner side of the front end cover and the rear end cover, the liquid flow channels are connected, which not only realizes the continuous flow of liquid, but also plays the role of heat dissipation at both ends of the motor; 3) The grooves and end covers adopt an integrated structure, which can realize the integral molding of the grooves and end covers, save processing steps, and achieve a good sealing effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 Schematic diagram of the longitudinal section of the shell body;

[0021] Figure 3 This is a schematic diagram of the inner structure of the front cover;

[0022] Figure 4 This is a schematic diagram of the inner structure of the rear end cover;

[0023] Figure 5 This is a schematic diagram of the structure of the first and second sealing gaskets;

[0024] Figure 6 This is a schematic diagram of the liquid flow channel arrangement in the shell body;

[0025] Figure 7 A schematic diagram showing the fitting installation of the fluid flow channel and the first groove group with the shell body and the front cover in the assembled state;

[0026] Figure 8 A schematic diagram showing the fitting installation of the fluid flow channel and the second groove group when the shell body and the rear end cover are installed together.

[0027] Figure 9 This is a schematic diagram showing the direction and path of liquid flow.

[0028] In the figure, 1. Shell body, 11. Liquid flow channel, 12. Heat sink, 2. Front cover, 21. First groove group, 22. Liquid inlet, 23. Liquid outlet, 3. Rear cover, 31. Second groove group, 4. Sealing gasket, 41-First sealing gasket, 42-Second sealing gasket, 5. Groove. Detailed Implementation

[0029] like Figure 1-5 As shown, a motor housing with a cooling structure includes a housing body 1, an end cap, and a sealing gasket 4.

[0030] like Figure 1 and 2 As shown, the shell body 1 has openings at both ends and has a receiving cavity, and heat sinks 12 are provided on the outside of the shell body 1. In this embodiment, liquid flow channels 11 are provided on the outside of the shell body 1. Each liquid flow channel 11 is axially arranged and circumferentially arranged on the outside of the shell body 1. The two ends of the liquid flow channels 11 are open structures, which can allow liquid to flow.

[0031] like Figure 3 and Figure 4 As shown, the end caps include a front end cap 2 and a rear end cap 3. The front end cap 2 and the rear end cap 3 are installed at both ends of the shell body 1. Both the front end cap 2 and the rear end cap 3 have grooves on their inner sides. The inner side of the front end cap 2 has a first groove group 21, and the inner side of the rear end cap 3 has a second groove group 31.

[0032] In this embodiment, the first groove group 21 and the second groove group 31 are respectively provided with four grooves, and the grooves of the first groove group 21 and the second groove group 31 are staggered in the circumferential direction.

[0033] When the front cover 2 and the rear cover 3 are connected and fixed to the shell body 1, the groove of the first groove group 21 is connected to one end of the liquid flow channel 11, and the groove of the second groove group 31 is connected to the other end of the liquid flow channel 11. Adjacent liquid flow channels 11 are connected to form multiple S-shaped structures connected end to end.

[0034] The front cover 2 is provided with a liquid inlet 22 and a liquid outlet 23 for connecting to the cooling mechanism.

[0035] In this embodiment, the liquid inlet 22 is connected to one of the grooves of the first groove group 21, and the liquid outlet 23 is connected to the other groove of the first groove group 21. The liquid inlet 22 and the liquid outlet 23 are arranged symmetrically at 180 degrees.

[0036] The diameter of the liquid flow channel connected to the inlet 22 and the outlet 23 is larger than the diameter of the other liquid flow channels.

[0037] The cooling mechanism typically includes pumps, radiators, thermostats, etc. The cooling mechanism in this utility model does not deviate from the existing structure and function, and will not be described in detail here.

[0038] like Figure 5 As shown, the front cover 2 and the rear cover 3 are respectively provided with mounting holes. When they are connected to the shell body 1, a sealing gasket 4 is placed in the middle. The first sealing gasket 41 is provided with holes or grooves corresponding to the mounting holes on the front cover 2 and the first groove group 21. The second sealing gasket 42 is provided with holes or grooves corresponding to the mounting holes on the rear cover 2 and the second groove group 31.

[0039] The present invention will now be described in detail with reference to specific embodiments.

[0040] like Figure 6 As shown, the liquid flow channels 11 arranged circumferentially on the shell body 1 include liquid flow channels A1, A1', A2', B2, B1, B1', B2, C2', C2, C1, C1', C2', D2, D1, D1', D2', and A2 arranged circumferentially in sequence.

[0041] like Figure 7 As shown, the inner circumferential side of the front cover 2 is sequentially arranged with grooves a, d1, d1', c, b1, and b1'; Figure 8 As shown, the inner circumferential side of the rear end cover 3 is sequentially arranged with grooves b, c1, c1', d, a1, and a1'.

[0042] like Figure 6-8 As shown, the first ends of the liquid flow channels A1 and A1' are connected to the groove a of the first end cap;

[0043] The first ends of liquid flow channels A2', B2 and B1 are connected to the groove b1' of the first end cap;

[0044] The first ends of the liquid flow channels B1', B2 and C2 are connected to the groove b1 of the first end cap;

[0045] The first ends of the liquid flow channels C1 and C1' are connected to the groove c of the first end cap;

[0046] The first ends of the liquid flow channels C2', D2 and D1 are connected to the groove d1' of the first end cap;

[0047] The first ends of the fluid flow channels D1', D2' and A2 are connected to the groove d1' of the first end cap.

[0048] The second ends of the liquid flow channels B1 and B1' are connected to the groove b of the second end cap;

[0049] The second ends of fluid flow channels B2', C2, and C1 are connected to the groove c1 of the second end cap;

[0050] The second ends of liquid flow channels C1', C2' and D2 are connected to the groove c1' of the second end cap;

[0051] The second ends of fluid flow channels D1 and D1' are connected to the groove d of the second end cap;

[0052] The second ends of liquid flow channels A1, A2 and D2' are connected to the groove a1 of the second end cap;

[0053] The second ends of the fluid flow channels A1', A2', and B2 are connected to the groove a1' of the second end cap.

[0054] like Figure 9 As shown, the coolant flows from the inlet into groove a, with one stream of liquid flowing in from the first end of the liquid flow channel A1 and flowing out from the second end into groove a1.

[0055] The liquid in groove a1 flows in from the second ends of liquid flow channels A2 and D2' respectively, and flows out from its first end to groove d1;

[0056] The liquid in the groove d1 flows in from the first end of the liquid flow channel D1' and flows out from its second end into the groove d;

[0057] The liquid in the groove d flows in from the second end of the liquid flow channel D1 and flows out from its first end to the groove d1';

[0058] The liquid in the groove d1' flows in from the first end of the liquid flow channels D2 and C2' and flows out from the second end to the groove c1';

[0059] The liquid in the groove c1' flows in from the second end of the liquid flow channel C1', flows out from its first end into the groove c, and is discharged from the outlet.

[0060] Another liquid flows in from the first end of the liquid flow channel A1' and flows out from its second end into the groove a1';

[0061] The liquid in the groove a1' flows in from the second ends of the liquid flow channels A2' and B2 respectively, and flows out from their first ends to the groove b1';

[0062] The liquid in the groove b1' flows in from the first end of the liquid flow channel B1 and flows out from its second end into the groove b;

[0063] The liquid in the groove b flows in from the second end of the liquid flow channel B1' and flows out from its first end into the groove b1;

[0064] The liquid in groove b1 flows in from the first end of liquid flow channel B2'C2 and flows out from its second end into groove c1;

[0065] The liquid in the groove c1 flows in from the second end of the liquid flow channel C1, flows out from its first end into the groove c, and is discharged from the outlet.

[0066] This utility model also describes an electric motor, including a housing, a rotor, a stator, and a motor shaft, wherein the housing is the motor housing with a cooling structure described above.

[0067] The only change made to the motor housing is that its working principle remains unchanged, so it will not be described in detail here.

[0068] It should be noted that the terms "front", "rear", and "inner side" in this utility model are only for the convenience of indicating the connection relationship of the relevant components, and not for limiting their position; the terms "first" and "second" in the text are only for distinguishing the relevant components, and not for limiting their order.

Claims

1. A motor housing with a cooling structure, comprising a housing body and an end cap, the housing body having a receiving cavity, characterized in that, The outer circumference is provided with a liquid flow channel, which has liquid inlet at one end and liquid outlet at the other end; the end cap includes a front end cap and a rear end cap, which are respectively sealed and installed at both ends of the shell body. The inner side of the end cap is provided with grooves. After the end cap is installed with the shell body, the grooves are installed corresponding to the liquid flow channels. The front end cap has a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet are connected to any groove, and the two are staggered; the liquid inlet, the groove, the liquid flow channel and the liquid outlet form multiple S-shaped continuous liquid flow paths.

2. The motor housing with a cooling structure according to claim 1, characterized in that, The diameter of the liquid flow channel connecting the inlet and outlet is larger than the diameter of other liquid flow channels.

3. A motor housing with a cooling structure according to claim 1, characterized in that, The grooves on the front and rear covers are offset in the circumferential direction.

4. A motor housing with a cooling structure according to claim 1, characterized in that, Sealing gaskets are respectively provided between the front cover, the rear cover and the shell body.

5. A motor housing with a cooling structure according to claim 1, characterized in that, Heat sinks are provided on the outside of the housing.

6. A motor housing with a cooling structure according to claim 1, characterized in that, The inlet and outlet are symmetrically arranged at 180 degrees. The inlet is connected to one of the grooves, and the outlet is connected to the other groove.

7. A motor housing with a cooling structure according to claim 6, characterized in that, The groove communicating with the liquid inlet and the groove communicating with the liquid outlet are respectively connected to two liquid flow channels to achieve liquid diversion.

8. A motor housing with a cooling structure according to claim 1, characterized in that, It is also equipped with a cooling mechanism, wherein the liquid inlet is connected to the liquid outlet of the cooling mechanism, and the liquid outlet is connected to the liquid inlet of the cooling mechanism.

9. An electric motor having the housing as described in any one of claims 1-8, comprising a housing, a stator, a rotor, and a motor shaft, wherein the housing is the motor housing with cooling structure described above.

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