A new energy vehicle integrated heat dissipation motor shell

By combining air-cooling and water-cooling structures in the motor housing of new energy vehicles, using staggered cooling grooves and air ducts, and adding heat dissipation fins and support feet, the problems of low heat dissipation efficiency and complex structure of the motor housing are solved, achieving efficient and uniform motor heat dissipation and simplifying the motor structure.

CN224503068UActive Publication Date: 2026-07-14ZHENJIANG LONGKE AUTOMOBILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG LONGKE AUTOMOBILE TECHNOLOGY CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

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Abstract

The utility model discloses a new energy automobile integration heat dissipation motor casing, including the casing body, the one end bolted joint of casing body has the front end cover, its other end bolted joint has rear end cover, the end face circumference direction of casing body is equipped with multiple evenly distributed air channel and cooling tank, to realize the intercoordination heat dissipation of air cooling and water cooling to casing body, multiple cooling tank is wrapped in multiple air channel, and multiple cooling tank and multiple air channel are staggered and are wrapped setting, to the heat absorption heat dissipation of the junction place transmission between adjacent air channel. The utility model discloses through being provided with the intercoordination air cooling and water cooling in the inside of casing, can make the high temperature of casing inside produce the quick heat dissipation, and then improve the heat dissipation efficiency of motor casing.
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Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle application technology, and in particular to an integrated heat dissipation motor housing for new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the motor, as the core power component of new energy vehicles, is crucial to the operation of the entire vehicle due to its performance and reliability. During operation, the motor generates a large amount of heat. If this heat cannot be dissipated effectively and in a timely manner, the motor temperature will become too high, reducing its efficiency and lifespan, and even posing safety hazards.

[0003] Currently, existing heat dissipation methods for new energy vehicle motor housings have many shortcomings. Traditional heat dissipation structures often employ simple heat sinks or air-cooled structures, resulting in limited heat dissipation area and low heat dissipation efficiency. Some motor housings using liquid cooling suffer from poorly designed coolant channels and uneven coolant flow, leading to significant differences in heat dissipation effects across different parts of the motor housing and making it difficult to achieve uniform heat dissipation. Furthermore, existing motor housing structures are relatively complex with numerous components, increasing production costs and hindering the miniaturization and lightweight design of the motor, thus failing to meet the requirements of new energy vehicles for efficient heat dissipation and compact structures. Therefore, this utility model proposes an integrated heat dissipation motor housing for new energy vehicles. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an integrated heat dissipation motor housing for new energy vehicles, so as to solve the problems of low heat dissipation efficiency and complex structure of existing new energy vehicle motor housings.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing an integrated heat dissipation motor housing for new energy vehicles, including a housing body, one end of which is bolted to a front end cover and the other end of which is bolted to a rear end cover;

[0006] The end face of the casing body is provided with multiple evenly distributed air ducts and cooling slots in the circumferential direction to achieve heat dissipation through the combination of air cooling and water cooling. The multiple cooling slots are wrapped around multiple air ducts, and the multiple cooling slots and multiple air ducts are staggered to absorb and dissipate the heat transferred at the connection between adjacent air ducts.

[0007] The present invention is further configured such that: multiple heat dissipation fins are uniformly fixedly connected to the outer wall of the casing body in the circumferential direction, and the heat dissipation fins located at the cooling groove all extend into the interior of the cooling groove.

[0008] The above technical solution facilitates the transfer and dissipation of heat from the cooling tank using heat dissipation fins, thereby further improving the heat dissipation efficiency of the entire casing.

[0009] The present invention is further configured such that: the outer wall of the housing body is symmetrically and fixedly connected with support legs near the bottom position.

[0010] The above technical solution facilitates the use of feet to fix the entire housing body in position.

[0011] The present invention is further configured such that: a shaft hole is provided at the center of the front end cover, and multiple bolt holes and multiple sets of air inlets are provided in the circumferential direction of the outer wall of the front end cover, and the multiple air inlets correspond to multiple air ducts respectively, and are arranged alternately with the bolt holes.

[0012] The above technical solution facilitates the installation and fixation of the front cover using bolts through the bolt holes, and allows multiple sets of air inlets to correspond to the air ducts, enabling the entry of external air and thus carrying away a large amount of heat.

[0013] The present invention is further configured such that: an annular water groove A is provided at the connection between the front cover and the housing body, and the annular water groove A is connected to multiple cooling grooves; a water inlet is fixedly connected to the surface of the front cover near the annular water groove A, and the water inlet is connected to the annular water groove A.

[0014] The above technical solution facilitates the injection of coolant into the annular water tank A via the water inlet interface, which then enters multiple cooling tanks to absorb and remove the heat emitted by the casing, and works in conjunction with the internal air ducts for rapid heat dissipation.

[0015] The present invention is further configured such that: an annular water groove B is provided at the connection between the rear end cover and the housing body, and a water outlet is provided through the end face of the rear end cover near the edge, and the water outlet is connected to the annular water groove B, while the annular water groove B is connected to multiple cooling grooves.

[0016] The above technical solution facilitates the discharge of coolant from the cooling tank through the annular water tank B, enabling the coolant to circulate within the cooling tank and improving heat dissipation.

[0017] The present invention is further configured such that: a shaft frame is fixedly connected to the inner wall of the rear end cover, a dustproof net is fixedly connected to the port position of the rear end cover, and an exhaust fan installation area is provided between the dustproof net and the shaft frame.

[0018] The above technical solution facilitates the use of a shaft bracket to stabilize the end face of the internal rotating shaft, and allows external air to carry heat out through the air duct under the action of the exhaust fan, thereby achieving air cooling and heat dissipation, and also provides dust protection through the dust filter.

[0019] The beneficial effects of this utility model are as follows:

[0020] The present invention proposes an integrated heat dissipation motor housing for new energy vehicles. By incorporating cooperating air cooling and water cooling systems inside the housing, the high temperature generated inside the housing can be quickly dissipated, thereby improving the heat dissipation efficiency of the motor housing. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an integrated heat dissipation motor housing for a new energy vehicle according to the present invention;

[0022] Figure 2 This is a cross-sectional view of an integrated heat dissipation motor housing for a new energy vehicle according to the present invention.

[0023] Figure 3 This is a structural diagram of the housing body in an integrated heat dissipation motor housing for new energy vehicles according to this utility model;

[0024] Figure 4 This is a first structural diagram of the front end cover of an integrated heat dissipation motor housing for a new energy vehicle according to the present invention;

[0025] Figure 5 This is a second structural diagram of the front end cover of an integrated heat dissipation motor housing for a new energy vehicle according to the present invention;

[0026] Figure 6 This is a structural diagram of the rear end cover of an integrated heat dissipation motor housing for new energy vehicles according to this utility model.

[0027] In the diagram: 1. Main casing; 11. Air duct; 12. Cooling tank; 13. Heat dissipation fins; 14. Support feet; 2. Front cover; 21. Bolt holes; 22. Air inlet; 23. Annular water tank A; 24. Water inlet interface; 3. Rear cover; 31. Annular water tank B; 32. Water outlet interface; 33. Shaft bracket; 34. Dustproof net. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] like Figure 1 , Figure 4 and Figure 5As shown, an integrated cooling motor housing for a new energy vehicle includes a housing body 1. One end of the housing body 1 is bolted to a front cover 2. A shaft hole is opened at the center of the front cover 2. Multiple bolt holes 21 and multiple sets of air inlets 22 are opened in the circumferential direction of the outer wall of the front cover 2, which facilitates the installation and fixation of the front cover 2 by bolts through the bolt holes 21. The multiple sets of air inlets 22 correspond to the air ducts 11 respectively, so that the external air can enter and carry away a large amount of heat. An annular water groove A23 is opened at the connection between the front cover 2 and the housing body 1. The annular water groove A23 is connected to multiple cooling grooves 12. A water inlet 24 is fixedly connected to the surface of the front cover 2 near the annular water groove A23. The water inlet 24 is connected to the annular water groove A23, so that coolant can be injected into the interior of the annular water groove A23 through the water inlet 24 and then into the interior of the multiple cooling grooves 12 to absorb and carry away the heat emitted by the housing body 1. This, together with the internal air ducts 11, enables rapid heat dissipation.

[0030] like Figure 2 and Figure 6 As shown, a rear end cover 3 is bolted to the other end of the casing body 1. An annular water groove B31 is provided at the connection between the rear end cover 3 and the casing body 1. A water outlet 32 ​​is provided through the end face of the rear end cover 3 near the edge, and the water outlet 32 ​​is connected to the annular water groove B31. At the same time, the annular water groove B31 is connected to multiple cooling grooves 12, so that the coolant inside the cooling groove 12 can be discharged through the annular water groove B31, realizing the circulation of the coolant inside the cooling groove 12 and improving the heat dissipation effect. A shaft bracket 33 is fixedly connected to the inner wall of the rear end cover 3. A dustproof net 34 is fixedly connected to the port position of the rear end cover 3. An exhaust fan installation area is provided between the dustproof net 34 and the shaft bracket 33, so that the shaft bracket 33 can be used to stabilize the end face of the internal rotating shaft. Under the action of the exhaust fan, the external air can be discharged through the air duct 11 carrying heat, thereby realizing air cooling and dust protection under the action of the dustproof net 34.

[0031] like Figures 1-3As shown, the end face of the housing body 1 has multiple evenly distributed air ducts 11 and cooling slots 12 in the circumferential direction to achieve air cooling and water cooling in combination. The multiple cooling slots 12 wrap around the multiple air ducts 11, and the multiple cooling slots 12 and multiple air ducts 11 are staggered to absorb and dissipate the heat transferred at the connection between adjacent air ducts 11. Multiple heat dissipation fins 13 are evenly fixedly connected to the outer wall of the housing body 1 in the circumferential direction, and the heat dissipation fins 13 located at the cooling slots 12 all extend into the interior of the cooling slots 12, so as to facilitate the transfer and discharge of a certain amount of heat inside the cooling slots 12 by the heat dissipation fins 13, further improving the heat dissipation efficiency of the entire housing body 1. The outer wall of the housing body 1 is symmetrically fixedly connected to the bottom position with the support legs 14, so as to facilitate the installation and fixation of the entire housing body 1 in position using the support legs 14.

[0032] In use, this utility model utilizes a drive shaft to drive a rear exhaust fan to expel internal heat. Furthermore, the connection between the air inlet 22 and the air duct 11 allows external air to enter the casing 1, carrying a significant amount of heat for expulsion. The heat within the air duct 11 can also be transferred to multiple cooling tanks 12. Connecting the water inlet 24 and the water outlet 32 ​​allows incoming coolant to enter the cooling tank 12 through the annular water tank A23. The internal heat is then carried by the coolant and expelled through the water outlet 32 ​​connected to the annular water tank B31, thereby improving the heat dissipation efficiency of the casing 1.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An integrated heat dissipation motor housing for new energy vehicles, comprising a housing body (1), characterized in that: One end of the housing body (1) is bolted to a front cover (2), and the other end is bolted to a rear cover (3). The end face of the casing body (1) is provided with a plurality of evenly distributed air ducts (11) and cooling grooves (12) in the circumferential direction, so as to achieve air cooling and water cooling in combination to dissipate heat from the casing body (1). The plurality of cooling grooves (12) are wrapped around the plurality of air ducts (11), and the plurality of cooling grooves (12) and the plurality of air ducts (11) are staggered to absorb and dissipate heat at the connection between adjacent air ducts (11).

2. The integrated heat dissipation motor housing for new energy vehicles according to claim 1, characterized in that: The outer wall of the casing body (1) is uniformly fixed with multiple heat dissipation fins (13) in the circumferential direction, and the heat dissipation fins (13) located at the cooling groove (12) all extend into the interior of the cooling groove (12).

3. The integrated heat dissipation motor housing for new energy vehicles according to claim 2, characterized in that: The outer wall of the casing body (1) is symmetrically fixed with feet (14) near the bottom.

4. The integrated heat dissipation motor housing for new energy vehicles according to claim 1, characterized in that: The front cover (2) has a shaft hole at its center. The outer wall of the front cover (2) has multiple bolt holes (21) and multiple sets of air inlets (22) in the circumferential direction. The multiple air inlets (22) correspond to multiple air ducts (11) and are arranged alternately with the bolt holes (21).

5. The integrated heat dissipation motor housing for new energy vehicles according to claim 4, characterized in that: An annular water tank A (23) is provided at the connection between the front cover (2) and the housing body (1), and the annular water tank A (23) is connected to multiple cooling tanks (12). A water inlet (24) is fixedly connected to the surface of the front cover (2) near the annular water tank A (23), and the water inlet (24) is connected to the annular water tank A (23).

6. The integrated heat dissipation motor housing for new energy vehicles according to claim 1, characterized in that: An annular water tank B (31) is provided at the connection between the rear end cover (3) and the housing body (1). A water outlet (32) is provided through the end face of the rear end cover (3) near the edge, and the water outlet (32) is connected to the annular water tank B (31). At the same time, the annular water tank B (31) is connected to multiple cooling tanks (12).

7. The integrated heat dissipation motor housing for new energy vehicles according to claim 6, characterized in that: The inner wall of the rear end cover (3) is fixedly connected to a shaft bracket (33), and a dustproof net (34) is fixedly connected to the port position of the rear end cover (3). An exhaust fan installation area is provided between the dustproof net (34) and the shaft bracket (33).