Efficient cooling structure of automobile generator
Patent Information
- Application Number
- CN202521984419.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0003]传统的汽车发电机冷却结构多采用风冷和液冷两种方式,虽然在一定程度上可以降低发电机的温度,但存在冷却效果不均匀、冷却效率较低、冷却系统复杂且维护成本高等问题
[0016] This invention relates to a high-efficiency cooling structure for automotive generators. The side and top cooling fins effectively increase the heat dissipation area. Combined with the top air vents and side air ducts on the shroud, it guides cooling airflow evenly through the top and side cooling areas of the generator, significantly improving cooling efficiency. Simultaneously, the use of a centrifugal cooling fan, matched with the shroud's airflow design, further enhances the flow efficiency of the cooling air, allowing the generator to maintain a suitable operating temperature even at high speeds. Furthermore, this structure is relatively simple, easy to install and maintain, reducing maintenance costs, and effectively solving the problems of uneven cooling, low cooling efficiency, and complex and costly cooling systems inherent in traditional cooling structures.
Smart Images

Figure CN224653286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive generator cooling technology, specifically to a high-efficiency cooling structure for automotive generators. Background Technology
[0002] With the rapid development of the automotive industry and the increasing demands on vehicle performance, automotive electrical systems, especially generators, are being used more and more widely in vehicles. As a core component of the automotive electrical system, the generator bears the heavy responsibility of providing electrical energy to the vehicle. However, with the increase in engine power and electrical load, the generator generates a large amount of heat during operation, which not only affects its efficiency but may also lead to overheating damage and reduced service life. Therefore, improving the cooling efficiency of the generator has become crucial for enhancing the reliability and stability of the automotive electrical system.
[0003] Traditional automotive alternator cooling systems typically employ either air cooling or liquid cooling. While these methods can reduce alternator temperature to some extent, they suffer from uneven cooling, low cooling efficiency, complex cooling systems, and high maintenance costs. At high speeds, air cooling systems may struggle to provide sufficient heat dissipation, while liquid cooling systems are more complex to install and maintain, requiring additional space and resources.
[0004] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a high-efficiency cooling structure for automotive generators. Utility Model Content
[0005] The purpose of this invention is to provide a high-efficiency cooling structure for automotive generators to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-efficiency cooling structure for an automotive generator includes an automotive generator housing, side heat dissipation fins and top heat dissipation fins disposed on the housing, a cooling fan, and a fan cover.
[0008] The hood is provided with a top edge air hole and a side air duct, and the side air duct is provided with a side air hole;
[0009] The cooling fan works in conjunction with the shroud to form an airflow channel, thereby achieving efficient cooling of the vehicle's generator.
[0010] As a preferred technical solution, the side heat dissipation fins and the top heat dissipation fins are respectively arranged on the side and top of the automobile generator housing to increase the heat dissipation area.
[0011] As a preferred technical solution, the shroud covers the output end of the cooling fan and is connected and fixed to the housing of the automotive generator.
[0012] As a preferred technical solution, the top edge air vent is located at the top of the shroud and is correspondingly arranged with the top edge heat dissipation fins to guide airflow through the top heat dissipation area.
[0013] As a preferred technical solution, the side air duct extends to the side of the car generator housing, and the side air vents are correspondingly arranged with the side heat dissipation fins to guide airflow through the side heat dissipation area.
[0014] As a preferred technical solution, the cooling fan is a centrifugal fan, and its rotation direction matches the air duct design of the fan cover to enhance the flow efficiency of the cooling airflow.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention relates to a high-efficiency cooling structure for automotive generators. The side and top cooling fins effectively increase the heat dissipation area. Combined with the top air vents and side air ducts on the shroud, it guides cooling airflow evenly through the top and side cooling areas of the generator, significantly improving cooling efficiency. Simultaneously, the use of a centrifugal cooling fan, matched with the shroud's airflow design, further enhances the flow efficiency of the cooling air, allowing the generator to maintain a suitable operating temperature even at high speeds. Furthermore, this structure is relatively simple, easy to install and maintain, reducing maintenance costs, and effectively solving the problems of uneven cooling, low cooling efficiency, and complex and costly cooling systems inherent in traditional cooling structures. Attached Figure Description
[0017] Figure 1 A three-dimensional structural diagram of a high-efficiency cooling structure for an automotive generator;
[0018] Figure 2 for Figure 1 A magnified schematic diagram of point A of a high-efficiency cooling structure for an automotive generator;
[0019] Figure 3 This is a schematic diagram of the side structure of a fan shroud for a high-efficiency cooling structure for an automotive generator.
[0020] In the attached diagram, the following are the reference numerals: 1. Automotive generator housing; 21. Side heat dissipation fins; 22. Top heat dissipation fins; 3. Cooling fan; 31. Fan cover; 32. Top air vent; 33. Side air duct; 34. Side air vent. Detailed Implementation
[0021] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.
[0022] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution for a high-efficiency cooling structure for an automotive generator: a technical solution for a high-efficiency cooling structure for an automotive generator includes an automotive generator housing 1, side heat dissipation fins 21 and top heat dissipation fins 22 disposed on the housing 1, a cooling fan 3, and a fan cover 31.
[0023] The automotive generator housing 1 serves as the main support for the entire cooling structure, and its shape and dimensions are designed according to the specific model and installation requirements of the automotive generator. Side cooling fins 21 and top cooling fins 22 are respectively arranged on the sides and top of the automotive generator housing 1. The side cooling fins 21 are multiple parallel thin sheet structures, fixed to the sides of the housing 1 by welding or integral molding, effectively increasing the heat dissipation area on the sides; the top cooling fins 22 are also multiple parallel thin sheet structures, fixed to the top of the housing 1, increasing the heat dissipation area at the top.
[0024] The fan cover 31 covers the output end of the cooling fan 3 and is connected and fixed to the car alternator housing 1. The connection method can be bolt connection or snap connection. The fan cover 31 is provided with a top edge air hole 32 and a side air duct 33. The side air duct 33 is provided with a side air hole 34. The top edge air hole 32 is located at the top of the fan cover 31 and is set corresponding to the top edge heat dissipation fins 22. Its shape can be circular, square, etc., and its main function is to guide airflow through the top heat dissipation area. The side air duct 33 extends to the side of the car alternator housing 1, and the side air hole 34 is set corresponding to the side heat dissipation fins 21. Similarly, its shape can be circular, square, etc., and it is used to guide airflow through the side heat dissipation area.
[0025] The cooling fan 3 is a centrifugal fan, and its rotation direction matches the air duct design of the shroud 31. The cooling fan 3 is installed inside the shroud 31 near the input end and is driven to rotate by a motor. When the cooling fan 3 is working, the centrifugal force generated by its rotation causes air to flow along the air duct of the shroud 31, forming an airflow channel. The airflow flows through the top air vent 32 and the side air vent 34 to the heat dissipation areas where the top heat dissipation fins 22 and the side heat dissipation fins 21 are located, respectively, achieving efficient cooling of the car's alternator.
[0026] In actual installation and use, firstly, install the car alternator housing 1 in the corresponding position on the car according to the design requirements. Then, install the side cooling fins 21 and the top cooling fins 22 on the side and top of the housing 1, respectively. Next, install the cooling fan 3 inside the fan cover 31, and cover the output end of the cooling fan 3 with the fan cover 31. Connect and fix the fan cover 31 to the car alternator housing 1 using bolts or clips. Finally, turn on the power to the cooling fan 3 to start it working, thus achieving efficient cooling of the car alternator.
[0027] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0029] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.
Claims
1. A high-efficiency cooling structure for an automotive generator, characterized in that, It includes a car generator housing (1), side heat dissipation fins (21) and top heat dissipation fins (22) provided on the housing, a cooling fan (3), and a fan cover (31); The hood (31) is provided with a top edge air hole (32) and a side air duct (33), and the side air duct (33) is provided with a side air hole (34); The cooling fan (3) works in conjunction with the shroud (31) to form an airflow channel, thereby achieving efficient cooling of the vehicle's generator.
2. The high-efficiency cooling structure for an automotive generator according to claim 1, characterized in that: The side heat dissipation fins (21) and the top heat dissipation fins (22) are respectively arranged on the side and top of the automobile generator housing (1) to increase the heat dissipation area.
3. The high-efficiency cooling structure for an automotive generator according to claim 1, characterized in that: The shroud (31) covers the output end of the cooling fan (3) and is connected and fixed to the car generator housing (1).
4. The high-efficiency cooling structure for an automotive generator according to claim 1, characterized in that: The top edge air vent (32) is located at the top of the shroud (31) and is correspondingly set with the top edge heat dissipation fins (22) to guide airflow through the top heat dissipation area.
5. The high-efficiency cooling structure for an automotive generator according to claim 1, characterized in that: The side air duct (33) extends to the side of the car generator housing (1), and the side air hole (34) is correspondingly arranged with the side heat dissipation fins (21) to guide airflow through the side heat dissipation area.
6. The high-efficiency cooling structure for an automotive generator according to claim 1, characterized in that: The cooling fan (3) is a centrifugal fan, and its rotation direction matches the air duct design of the shroud (31) to enhance the flow efficiency of the cooling airflow.