A heat dissipation structure of an automobile wiper motor and a vehicle

CN224843396UActive Publication Date: 2026-10-09CHONGQING JINKANG NEW ENERGY VEHICLE CO LTD
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Patent Information

Application Number
CN202522091437.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2026-10-09
Estimated Expiration
2035-09-28

AI Technical Summary

Technical Problem

但随着汽车智能化发展以及轻量化设计要求,很多新能源汽车的前舱已经取消了金属流水槽钣金来隔离雨刮电机与前舱,此时,前舱发动机在车辆行驶过程中散发的热气将覆盖雨刮电机,导致雨刮电机的工作环境温度升高

Benefits of technology

[0015]本实用新型通过在雨刮电机的电机外壳上安装可拆卸的风冷组件,利用风冷组件产生的气流促进端盖与外界环境的热交换,加速端盖的热量传递和散发,从而降低端盖的表面温度,提高控制器腔室的内部环境与端盖的热交换效率,达到保证雨刮电机正常工作的目的。

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Abstract

The utility model discloses a kind of heat dissipation structure and vehicle of automobile wiper motor, comprising: motor shell and air-cooled component, the motor shell at least has the controller chamber for accommodating controller module, and is equipped with the end cap for closing the controller chamber;The air-cooled component is detachably mounted on the end cap, and is configured to be able to generate airflow flowing through the surface of the end cap, to dissipate heat to the end cap.The utility model is installed detachable air-cooled component on the motor shell of wiper motor, promotes the heat exchange of end cap and external environment using the airflow generated by air-cooled component, accelerates the heat transfer and emission of end cap, to reduce the surface temperature of end cap, improve the heat exchange efficiency of the internal environment of controller chamber and end cap, to ensure that wiper motor works normally.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, specifically to a heat dissipation structure for an automotive windshield wiper motor and a vehicle thereof. Background Technology

[0002] Windshield wipers are an essential safety device for cars. Driven by a wiper motor, they remove frost, rainwater, dust, and other substances from the front and rear windshields of the car, ensuring the driver has a clear view and ensuring driving safety.

[0003] Normally, the wiper motor controller module generates heat during operation, and its heat dissipation mainly relies on heat exchange between the motor housing and the external environment. However, with the development of automotive intelligence and lightweight design requirements, many new energy vehicles have eliminated the metal drainage channel sheet metal used to isolate the wiper motor from the front compartment. In this case, the heat emitted by the engine during vehicle operation will cover the wiper motor, causing the operating temperature of the wiper motor to rise. When the ambient temperature rises, the wiper motor controller module will limit the output power of the wiper motor due to the temperature increase, and may even cause the wiper motor to fail due to high temperature. Utility Model Content

[0004] In view of the above problems, this utility model provides a heat dissipation structure for an automotive wiper motor and a vehicle, which can improve the heat exchange efficiency between the internal environment of the controller module chamber (i.e., the controller chamber) and the corresponding shell (i.e., the end cover) that constitutes the controller chamber, and ensure the normal operation of the wiper motor.

[0005] According to one aspect of the present invention, a heat dissipation structure for an automotive wiper motor is provided, comprising: a motor housing having at least a controller chamber for accommodating a controller module and an end cover for sealing the controller chamber; and an air-cooling assembly detachably mounted on the end cover and configured to generate airflow across the surface of the end cover for heat dissipation of the end cover.

[0006] In an exemplary embodiment of the present invention, the air-cooled assembly includes a fan shroud and a fan assembly. The fan shroud is detachably connected to the end cover and forms a receiving cavity between the fan shroud and the end cover after connection. The fan assembly is disposed in the receiving cavity and is fixedly connected to the fan shroud. The air inlet side or air outlet side of the fan assembly is disposed towards the end cover so that the airflow generated by the fan assembly flows over the surface of the end cover.

[0007] In an exemplary embodiment of this utility model, the fan cover includes a top cover and a side wall surrounding the top cover. The top cover is placed on the end cover via the side wall and forms a receiving cavity. The top cover has a first port communicating with the receiving cavity, and the side wall has a second port communicating with the receiving cavity. When the air inlet side of the fan assembly faces the end cover, the first port is the air outlet and the second port is the air inlet. When the air outlet side of the fan assembly faces the end cover, the first port is the air inlet and the second port is the air outlet.

[0008] In an exemplary embodiment of the present invention, the receiving cavity is arranged in a ring shape, and the second port is opened on the side wall along the tangential direction of the receiving cavity.

[0009] In an exemplary embodiment of the present invention, the air-cooling component further includes a temperature sensor for detecting the current ambient temperature. The temperature sensor is connected to a controller module, and the controller module is configured to control the start and stop of the air-cooling component according to the current ambient temperature.

[0010] In an exemplary embodiment of this utility model, the end cover is provided with a plug-in terminal that is electrically connected to the controller module, and the air-cooling component is provided with a connector terminal; the connector terminal is inserted into the plug-in terminal to supply power to the air-cooling component.

[0011] In an exemplary embodiment of the present invention, the end cap is provided with a first mating part, and the air-cooling component is provided with a second mating part corresponding to the first mating part. The second mating part is inserted into the first mating part to install the air-cooling component on the end cap.

[0012] In an exemplary embodiment of the present invention, the insertion direction of the connector terminal and the plug-in end is parallel to the insertion direction of the second mating part and the first mating part; when the first mating part and the second mating part are inserted and mated, the connector terminal is simultaneously inserted into the plug-in end.

[0013] In an exemplary embodiment of the present invention, the connector terminal is located at the bottom of the air-cooled assembly, and the power supply harness of the air-cooled assembly is integrated into the connector terminal.

[0014] According to a second aspect of the present invention, a vehicle is provided, including the above-described heat dissipation structure for an automotive wiper motor.

[0015] This invention installs a detachable air-cooling component on the motor housing of the wiper motor. The airflow generated by the air-cooling component promotes heat exchange between the end cover and the external environment, accelerates heat transfer and dissipation from the end cover, thereby reducing the surface temperature of the end cover and improving the heat exchange efficiency between the internal environment of the controller chamber and the end cover, thus ensuring the normal operation of the wiper motor.

[0016] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the heat dissipation structure of the automotive wiper motor in this embodiment is shown. Figure 2 A schematic diagram of the air-cooled assembly in this embodiment is shown; Figure 3 A top view of the air-cooled assembly of this embodiment is shown; Figure 4 A bottom view of the air-cooled assembly of this embodiment is shown; Figure 5 A top view of the motor housing in this embodiment is shown; Figure 6 A connection diagram of the controller module in this embodiment is shown.

[0019] Explanation of icon numbers: 1-Motor housing, 11-Controller chamber, 111-Controller module, 12-End cover, 121-Plug-in terminal, 122-First mating part, 2-Air-cooled assembly, 21-Fan shroud, 211-Receiving cavity, 212-Top cover, 2121-First port, 213-Side wall, 2131-Second port, 22-Fan assembly, 221-External rotor motor, 222-Impeller, 23-Connection terminal, 231-Positive pin, 232-Negative pin, 233-Temperature sensor pin, 24-Second mating part, 25-Temperature sensor.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0022] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., may be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of the present invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0024] Furthermore, the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," and "down" in the embodiments of this utility model are based on the orientations or positional relationships shown in the accompanying drawings; the terms "inner" and "outer" in the embodiments of this application are defined based on the outline of the corresponding component. It is understood that the above-mentioned terms indicating orientations or positional relationships are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] like Figure 1 , Figure 2 and Figure 5As shown, this embodiment provides a heat dissipation structure for an automotive wiper motor, including a motor housing 1 and an air-cooling assembly 2. The motor housing 1 serves as a housing for carrying the drive module (including the wiper motor body and its reducer) and the controller module 111. It has at least a controller chamber 11 for accommodating the controller module 111 and is equipped with an end cover 12 for sealing the controller chamber 11. The end cover 12 can be considered as part of the motor housing 1. Heat inside the controller chamber 11 can be transferred to the end cover 12 and exchanged with the external environment through the end cover 12 to achieve heat dissipation. The air-cooling assembly... 2, as a device capable of agitating air and generating airflow, can be detachably installed on the end cover 12 by means including but not limited to plugging, snapping, bolting, etc., and is configured to allow the generated airflow to flow over the surface of the end cover 12. In this way, the airflow generated by the air-cooling component 2 can promote the heat exchange between the end cover 12 and the external environment, accelerate the heat transfer and dissipation of the end cover 12, thereby reducing the surface temperature of the end cover 12 and achieving heat dissipation of the end cover 12. At this time, the heat exchange efficiency between the internal environment of the controller chamber 11 and the end cover 12 is improved, thereby ensuring the normal operation of the wiper motor.

[0026] Specifically, such as Figures 2 to 4 As shown, the air-cooled assembly 2 in this embodiment includes a fan shroud 21 and a fan assembly 22. The fan shroud 21 is detachably connected to the end cover 12, and after connection, a receiving cavity 211 is formed between the fan shroud 211 and the end cover 12. The fan assembly 22 is disposed in the receiving cavity 211 and is fixedly connected to the fan shroud 21. The air inlet side or air outlet side of the fan assembly 22 faces the end cover 12. In this way, when the fan assembly 22 is running, the airflow generated by it will flow from the air inlet side to the air outlet side of the fan assembly 22. At this time, the airflow path covers the surface of the end cover 12, and the airflow generated by the fan assembly 22 can flow over the surface of the end cover 12, promoting heat exchange between the surface of the end cover 12 and the external environment, thereby achieving heat dissipation of the end cover 12.

[0027] It is understood that the fan cover 21 in the above embodiment can be understood as a bracket for the fan assembly 22. Its specific shape is not limited here, as long as it can fix the fan assembly 22 and connect and support it on the end cover 12.

[0028] In some embodiments, such as Figure 2As shown, the fan cover 21 includes a top cover 212 and side walls 213 surrounding the top cover 212. The top cover 212 is placed on top of the end cover 12 via the side walls 213, and the receiving cavity 211 is formed between the top cover 212 and the end cover 12 by being enclosed by the side walls 213. The top cover 212 has a first port 2121 communicating with the receiving cavity 211, and the side walls 213 have a second port 2131 communicating with the receiving cavity 211. When the air inlet side of the fan assembly 22 faces the end cover 12, the first port 2121 is the air outlet, and the second port 2131 is the air outlet. When port 2131 is the air inlet, the airflow generated by the fan assembly 22 will flow along the path of the second port 2131, the air inlet side of the fan assembly 22, the air outlet side of the fan assembly 22, and the first port 2121. When the air outlet side of the fan assembly 22 faces the end cover 12, the first port 2121 is the air inlet and the second port 2131 is the air outlet. In this case, the airflow generated by the fan assembly 22 will flow along the path of the first port 2121, the air inlet side of the fan assembly 22, the air outlet side of the fan assembly 22, and the second port 2131. Through the above arrangement, the airflow can be effectively guided by the fan shroud 21, so that the airflow is concentrated and evenly flows through the area that needs to be cooled, reducing airflow eddies and dead zones, thereby significantly improving heat exchange efficiency.

[0029] In some embodiments, such as Figure 2 and Figure 3 As shown, the receiving cavity 211 is arranged in a ring shape, and the second port 2131 is opened on the side wall 213 along the tangential direction of the receiving cavity 211. In this way, the second port 2131 can guide the airflow to enter or exit the receiving cavity 211 tangentially. Guided by the second port 2131, the airflow can flow smoothly and smoothly along the annular side wall 213 of the receiving cavity 211, avoiding airflow separation and collision, which would generate wind resistance and noise.

[0030] Furthermore, such as Figure 2 and Figure 3 As shown, in this embodiment, there are two second ports 2131. The two second ports 2131 are evenly distributed along the circumference of the side wall 213, preferably arranged in a rotationally symmetrical manner. This can improve the air intake or exhaust volume and enhance the heat exchange efficiency, while maintaining the balanced flow of airflow and helping to reduce vibration and noise.

[0031] In some embodiments, such as Figures 4 to 6As shown, the end cap 12 is provided with a plug-in terminal 121 that is electrically connected to the controller module 111, and the air-cooled component 2 is provided with a connector terminal 23; the connector terminal 23 is inserted into the plug-in terminal 121 to supply power to the air-cooled component 2. With the above settings, the power supply of the wiper motor can be used to conveniently and quickly supply power to the air-cooled component 2, thereby eliminating the need for an external power supply and avoiding messy wiring harnesses; at the same time, the controller module 111 can also be used to control the start and stop of the air-cooled component 2, and automatically control the operating status of the air-cooled component 2 according to preset conditions (for example, starting the air-cooled component 2 when the wiper motor is running and turning off the air-cooled component 2 when the wiper motor is stopped).

[0032] For example, such as Figure 2 , Figures 4 to 6 As shown, in this embodiment, the connector 23 can be located at the bottom of the air-cooled assembly 2, and it has a positive PIN 231 and a negative PIN 232 that are respectively connected to the positive and negative terminals of the drive motor of the air-cooled assembly 2. Correspondingly, the end cover 12 has a socket that communicates with the controller chamber 11, and the connector 121 is arranged in the socket, and has corresponding positive and negative PIN interfaces that are electrically connected to the controller module 111. When the connector 23 is inserted into the connector 121, the positive PIN 231 and the negative PIN 232 on the connector 23 are coupled to the positive and negative PIN interfaces of the connector 121, thereby realizing the electrical connection between the air-cooled assembly 2 and the controller module 111.

[0033] Furthermore, such as Figure 2 and Figure 4 As shown, the fan assembly 22 of the air-cooled component 2 includes an external rotor motor 221 and an impeller 222. The external rotor motor 221 has a stator assembly located in the middle and a rotor assembly rotatably arranged around the stator assembly. The impeller 222 is connected to the rotor assembly around the rotor assembly. The top of the external rotor motor 221 is fixedly connected to the fan shroud 21. A connector terminal 23 is located at the bottom of the external rotor motor 221, and the power supply harness of the external rotor motor 221 is integrated into the connector terminal 23. By using the external rotor motor 221 as the driving component of the impeller 222, the connector terminal 23 and the driving component can be integrated, shortening the arrangement path of the connector terminal 23, thereby reducing the volume of the air-cooled component 2 and reducing space occupation. At the same time, after the connector terminal 23 is inserted into the connector 121, it can provide a constraint force to the bottom of the external rotor motor 221, improving the connection stability of the fan assembly 22 and reducing the possibility of the fan assembly 22 becoming loose due to vibration.

[0034] Understandably, when the air-cooling component 2 is not needed, the connector 23 can be separated from the connector 121, the air-cooling component 2 can be removed, and then a rubber sleeve can be put on the connector 121 or a plug that conforms to the shape of the socket can be placed in the socket to seal the socket, thereby ensuring the airtightness of the controller chamber 11.

[0035] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the end cap 12 is provided with a first mating part 122, and the air-cooling component 2 is provided with a second mating part 24 corresponding to the first mating part 122. The second mating part 24 is inserted into the first mating part 122 to install the air-cooling component 2 onto the end cap 12. Through the above configuration, the air-cooling component 2 and the end cap 12 can be detachably connected conveniently and quickly, and the operation is simple and the connection is stable.

[0036] For example, such as Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the first mating part 122 can be a plurality of connecting holes formed on the surface of the end cap 12 along the height direction; the second mating part 24 can be a plurality of connecting posts formed below the air-cooling component 2 along the height direction, specifically located at the lower end of the side wall 213 of the shroud 21; the diameter of the connecting post is adapted to the diameter of the connecting hole. In this way, by moving the air-cooling component 2 downward along the height direction, the connecting post is inserted into the corresponding connecting hole, and the second mating part 24 and the first mating part 122 can be inserted and mated to complete the fixed connection between the air-cooling component 2 and the end cap 12.

[0037] Furthermore, the first mating part 122 is designed as a blind hole, which can not only satisfy the insertion and mating with the second mating part 24, but also isolate the controller chamber 11 from the external environment, ensuring the airtightness of the controller chamber 11.

[0038] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, the insertion direction of the connector 23 and the plug-in end 121 is parallel to the insertion direction of the second mating part 24 and the first mating part 122. When the first mating part 122 and the second mating part 24 are inserted, the connector 23 is simultaneously inserted into the plug-in end 121. In this way, the first mating part 122 and the second mating part 24 can play a guiding and positioning role. Through the guidance of the first mating part 122 and the second mating part 24, on the one hand, the air-cooled component 2 and the end cover 12 can be mechanically fixed and electrically connected at the same time during the docking process, simplifying the operation steps and improving the disassembly and assembly efficiency; on the other hand, it can ensure that the connector 23 and the plug-in end 121 are accurately aligned during coupling, effectively preventing damage caused by misalignment of the pins.

[0039] For example, in this embodiment, the connector 23 and the second mating part 24 can be flush with each other at the same height. At the same time, the first mating part 122 and the plug-in end 121 can be flush with each other at the same height, and the insertion depth of the first mating part 122 and the second mating part 24 is the same as the insertion depth of the connector 23 and the plug-in end 121. In this way, when the air-cooling component 2 is moved downward along the height direction until the second mating part 24 contacts the first mating part 122, the connector 23 contacts the plug-in end 121 simultaneously. When the second mating part 24 and the first mating part 122 are fully engaged, the connector 23 is fully engaged with the plug-in end 121 and coupling is completed, thereby realizing the synchronous connection of the first mating part 122 and the second mating part 24, as well as the connector 23 and the plug-in end 121.

[0040] It is understood that in other embodiments, the insertion depth of the second mating part 24 and the first mating part 122 can be set to be greater than the insertion depth of the plug terminal 23 and the plug end 121, so that the second mating part 24 and the first mating part 122 make contact first, which plays a guiding and positioning role. As long as it can be ensured that when the second mating part 24 and the first mating part 122 are properly mated, the plug terminal 23 is inserted into the plug end 121 and the coupling is completed, there are no restrictions here and it will not be elaborated further.

[0041] In some embodiments, such as Figure 4 and Figure 6 As shown, the air-cooled assembly 2 also includes a temperature sensor 25 for detecting the current ambient temperature, which refers to the external ambient temperature of the motor housing 1. The temperature sensor 25 is connected to the controller module 111, and the controller module 111 is configured to control the start and stop of the fan assembly 22 based on the current ambient temperature. Specifically, the controller module 111 can be located in the fan assembly 22. When the wiper motor is running, the temperature sensor 25 monitors the current ambient temperature. When the temperature sensor 25 detects that the current ambient temperature reaches a preset value, it indicates that the current ambient temperature is too high, and the controller module 111 starts the fan assembly 22 to dissipate heat from the end cover 12. When the temperature sensor 25 detects that the current ambient temperature is lower than the preset value, the controller module 111 controls the fan assembly 22 to shut down or not start. Through the above settings, the operation of the fan assembly 22 can be controlled based on the current ambient temperature, avoiding unnecessary power consumption.

[0042] Furthermore, such as Figure 4As shown, the wires of the temperature sensor 25 can be integrated into the connector terminal 23. At this time, the connector terminal 23 and the plug terminal 121 are respectively formed with temperature sensor PIN 233 and temperature sensor PIN interface that can be coupled to each other. The electrical connection between the temperature sensor 25 and the controller module 111 can be realized by the insertion coupling of the connector terminal 23 and the plug terminal 121, which improves the ease of assembly.

[0043] In another embodiment, a vehicle is also provided, including the heat dissipation structure for the automotive wiper motor described in the above embodiments. It is understood that other structures and working principles of the heat dissipation structure for the automotive wiper motor are described in the above embodiments; other structures of the automotive wiper motor and the vehicle are described in the prior art; since the heat dissipation structure for the automotive wiper motor has the aforementioned technical effects, a vehicle having this heat dissipation structure should also have corresponding technical effects, which will not be elaborated further here.

[0044] It is understood that, in this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified. The terms "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model.

[0046] The illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of those different embodiments or examples, without contradiction.

[0047] Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, substitutions and variations to the above embodiments within the scope of the present invention. Therefore, any changes or modifications made in accordance with the claims and description of the present invention should fall within the scope of the patent coverage of the present invention.

Claims

1. A heat dissipation structure for an automotive windshield wiper motor, characterized in that, include: The motor housing has at least a controller chamber for accommodating a controller module and is provided with an end cap for closing the controller chamber; and An air-cooling assembly is detachably mounted to the end cap and configured to generate airflow across the surface of the end cap to dissipate heat from the end cap.

2. The heat dissipation structure for an automotive wiper motor according to claim 1, characterized in that, The air-cooling component includes a fan shroud and a fan assembly. The fan shroud is detachably connected to the end cover, forming a receiving cavity between them after connection. The fan assembly is disposed within the receiving cavity and is fixedly connected to the fan shroud. The air inlet or outlet side of the fan assembly is positioned toward the end cover so that the airflow generated by the fan assembly flows over the surface of the end cover.

3. The heat dissipation structure for an automotive wiper motor according to claim 2, characterized in that, The hood includes a top cover and side walls surrounding the circumference of the top cover. The top cover, via the side walls, covers the end cover and encloses it to form the receiving cavity. The top cover has a first port communicating with the receiving cavity, and the side walls have a second port communicating with the receiving cavity. When the air inlet side of the fan assembly faces the end cover, the first port is the air outlet and the second port is the air inlet; When the air outlet side of the fan assembly is oriented towards the end cover, the first port is the air inlet and the second port is the air outlet.

4. The heat dissipation structure for an automotive wiper motor according to claim 3, characterized in that, The receiving cavity is arranged in a ring shape, and the second port is opened on the side wall along the tangent of the receiving cavity.

5. The heat dissipation structure for an automotive wiper motor according to claim 1, characterized in that, The air-cooling component also includes a temperature sensor for detecting the current ambient temperature. The temperature sensor is connected to the controller module, and the controller module is configured to control the start and stop of the air-cooling component based on the current ambient temperature.

6. A heat dissipation structure for an automotive wiper motor according to any one of claims 1-5, characterized in that, The end cap is provided with a plug-in terminal that is electrically connected to the controller module, and the air-cooling component is provided with a connector terminal; the connector terminal is inserted into the plug-in terminal to supply power to the air-cooling component.

7. The heat dissipation structure for an automotive wiper motor according to claim 6, characterized in that, The end cap is provided with a first mating part, and the air-cooling component is provided with a second mating part corresponding to the first mating part. The second mating part is inserted into the first mating part to install the air-cooling component on the end cap.

8. The heat dissipation structure for an automotive wiper motor according to claim 7, characterized in that, The insertion direction of the connector terminal and the plug-in end is parallel to the insertion direction of the second mating part and the first mating part; when the first mating part and the second mating part are inserted and mated, the connector terminal is simultaneously inserted into the plug-in end.

9. The heat dissipation structure for an automotive wiper motor according to claim 8, characterized in that, The connector terminal is located at the bottom of the air-cooled assembly, and the power supply harness of the air-cooled assembly is integrated into the connector terminal.

10. A vehicle, characterized in that, Including the heat dissipation structure of the automotive wiper motor as described in any one of claims 1-9.