Motor controller upper cover with high-efficiency heat dissipation structure
By introducing an integrated heat sink assembly and fan assembly into the motor controller cover, the problem of insufficient heat dissipation in the prior art is solved, achieving efficient and intelligent heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENLING YUXIANG MASCH PARTS CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-07
AI Technical Summary
The existing heat dissipation structure of the motor controller cover is insufficient, making it difficult to dissipate heat quickly and effectively under high load and long-term operation conditions.
A motor controller cover was designed, which includes an integrally molded heat dissipation fin assembly and a heat dissipation fan assembly. The fin assembly contains large and small fins of different heights and is equipped with a temperature sensor box to increase the heat dissipation area and actively dissipate heat through the fan. A gap is left between the fins and the fan to promote airflow.
It significantly improves heat dissipation efficiency, can remove heat from the motor controller more quickly, and achieves intelligent regulation through temperature sensors, ensuring the stability and sealing of the overall structure.
Smart Images

Figure CN224473602U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of control equipment technology and relates to a motor controller cover with a high-efficiency heat dissipation structure. Background Technology
[0002] The motor controller cover is a key protective and auxiliary component of the controller. It adopts an adaptive structural design and is precisely assembled with the main body through buckles, bolts, etc. It is made of engineering plastics or die-cast alloys as commonly used materials and is manufactured through injection molding, die casting and other processes. It has protective functions, which can block dust and moisture from entering. Partially integrated heat dissipation design assists in temperature control. It can also achieve electrical integration and electromagnetic shielding through reasonable structure, ensuring stable operation of the controller and adapting to the needs of different application scenarios.
[0003] Chinese patent publication number CN219876412U discloses a motor controller cover structure, including a cover body formed by high pressure casting. The cover body has multiple bolt holes around its perimeter for connecting to the controller housing. Multiple reinforcing ribs are provided on the inner and outer surfaces of the cover body. Multiple material removal grooves are provided on the surface of the cover body. A reinforcing rib is formed between each pair of adjacent material removal grooves. The width and depth of the reinforcing ribs are consistent. A sealing surface is provided on the edge of the cover body facing the controller housing. The bolt holes are located on the sealing surface. An "H"-shaped sealing strip is used to seal the sealing surface and the controller housing.
[0004] The motor controller cover structure provided by this patent only increases the heat dissipation area by means of the reinforcing ribs of the cover body, without designing heat sinks or other heat dissipation structures. For some motor controllers that operate under high load and long-term conditions, it is difficult to dissipate heat quickly and effectively by relying solely on natural heat dissipation. Utility Model Content
[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a motor controller cover with a highly efficient heat dissipation structure.
[0006] The objective of this utility model can be achieved through the following technical solution: A motor controller cover with a high-efficiency heat dissipation structure includes a cover body, a cooling fan assembly, and a temperature sensor box. The cover body is generally rectangular. A heat dissipation fin assembly is fixedly connected to the upper end of the cover body. The heat dissipation fin assembly is an integrally formed structure and includes a base, large fins, and small fins. The lower end face of the base is fitted and fixed to the upper end face of the cover body. There are two large fins, which are located on the upper ends of both sides of the base. There are several small fins, which are located on the upper end of the base between the two large fins. The large fins extend outward to form outer fins. An installation plane is formed on the upper end of the outer fins. The cooling fan assembly includes a fan housing and a fan body. The fan housing is generally rectangular and has support columns formed at the four corners. Bolt holes are opened inside the support columns. The lower end face of the fan housing is fitted to the installation plane. A fixing plate is formed inside the fan housing. The fan body is connected to the fixing plate. The temperature sensor box is fixedly installed on the upper end of the cover body on one side of the heat dissipation fin assembly.
[0007] In the above-mentioned motor controller cover with a high-efficiency heat dissipation structure, a plurality of placement slots are provided on the upper end of one side of the cover body, and a fixing block is fixed in the placement slot, and a connection hole is provided in the fixing block.
[0008] In the above-mentioned motor controller cover with a high-efficiency heat dissipation structure, a limiting block is formed on one side of the main body of the cover.
[0009] In the above-mentioned motor controller cover with a high-efficiency heat dissipation structure, mounting holes are provided at the diagonal corners of the cover body.
[0010] In the above-mentioned motor controller cover with a high-efficiency heat dissipation structure, the height of the large fin is greater than that of the small fin, and a gap structure is formed between the small fin and the cooling fan assembly.
[0011] Compared with the prior art, the motor controller cover with a high-efficiency heat dissipation structure provided by this utility model has the following beneficial effects: 1. Through the one-piece molded heat dissipation fin assembly, which includes large and small fins of different heights, the large fins also extend outwards to form an mounting plane. Combined with the cooling fan assembly, the heat dissipation area is increased and active cooling is achieved by the fan. The gap between the small fins and the fan facilitates airflow and improves heat dissipation efficiency, which can remove the heat generated by the motor controller more quickly and efficiently; 2. The main body of the cover is provided with placement slots, fixing blocks, limiting blocks, mounting holes, etc., which facilitates precise assembly and connection with other components of the controller, ensuring the overall structural stability and sealing. At the same time, the temperature sensor box can monitor the temperature in real time, and together with the heat dissipation structure, achieve intelligent and efficient heat dissipation control. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the exploded structure of this utility model.
[0014] In the diagram: 1. Top cover body; 11. Placement slot; 12. Limiting block; 13. Mounting hole; 2. Cooling fan assembly; 21. Fan housing; 22. Fan body; 23. Support column; 24. Bolt hole; 25. Fixing plate; 3. Temperature sensor box; 4. Heat dissipation fin assembly; 41. Base; 42. Large fin; 43. Small fin; 44. Outer fin; 45. Mounting plane; 5. Fixing block; 51. Connection hole. Detailed Implementation
[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0016] like Figures 1 to 2 As shown, this embodiment includes a top cover body 1, a cooling fan assembly 2, a temperature sensor box 3, and a heat dissipation fin assembly 4. The top cover body 1 is rectangular in shape, providing a basic frame for the entire motor controller top cover. The heat dissipation fin assembly 4 is fixedly connected to the upper end of the top cover body 1. The heat dissipation fin assembly 4 adopts an integral molding structure and includes a base 41, large fins 42, and small fins 43. The lower end face of the base 41 is closely attached to the upper end face of the top cover body 1 and fixed by welding to ensure a stable connection. There are two large fins 42, which are located on the upper ends of both sides of the base 41. There are four small fins 43, which are located on the upper end of the base 41 between the two large fins 42. The large fins 42 extend outward to form outer fins 44. The upper end of the outer fins 44 forms a mounting plane 45, which is used to fix the cooling fan assembly 2.
[0017] like Figures 1 to 2 As shown, the cooling fan assembly 2 includes a fan housing 21 and a fan body 22. The fan housing 21 is rectangular in shape and has support columns 23 at its four corners. Bolt holes 24 are provided inside the support columns 23. The lower end face of the fan housing 21 is in contact with the mounting plane 45 of the outer fins 44. The fan housing 21 is fixedly installed by bolts passing through the bolt holes 24 and connecting to the corresponding holes on the mounting plane 45. A fixing plate 25 is formed inside the fan housing 21. The fan body 22 is connected to the fixing plate 25. When the fan body 22 is working, it accelerates the airflow and assists the cooling fin assembly 4 in heat dissipation, further improving the heat dissipation effect. The temperature sensor box 3 is fixedly installed on the upper end of the upper cover body 1 on one side of the cooling fin assembly 4. It is used to monitor the internal temperature of the motor controller in real time and provide data support for the intelligent control of the cooling system.
[0018] To elaborate further, such as Figures 1 to 2 As shown, a number of placement slots 11 are provided on the upper end of one side of the main body 1 of the cover. A fixing block 5 is fixed in the placement slot 11. A connecting hole 51 is provided in the fixing block 5. The connecting hole 51 can be used to connect and fix with other components, which facilitates the assembly of the motor controller cover with other parts of the motor controller. A limiting block 12 is formed on one side of the main body 1 of the cover. During the installation process, the limiting block 12 can fix the heat sink fin assembly 4 to ensure accurate installation position and improve installation accuracy and stability. Mounting holes 13 are provided at the diagonal corners of the main body 1 of the cover. By passing bolts and other connecting parts through the mounting holes 13, the motor controller cover can be installed on the motor controller housing to achieve overall fixation.
[0019] To elaborate further, such as Figure 1 As shown, the height of the large fin 42 is greater than that of the small fin 43, and a gap structure is formed between the small fin 43 and the cooling fan assembly 2. This design not only ensures the heat dissipation function of the fins, but also provides a smooth channel for the airflow generated by the fan, so that the airflow can flow better over the surface of the fins, carry away heat, and avoid the problem of reduced heat dissipation efficiency due to poor airflow, thereby further improving the overall heat dissipation performance.
[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0021] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A motor controller cover with a high-efficiency heat dissipation structure, comprising a cover body (1), a cooling fan assembly (2), and a temperature sensor box (3), wherein the cover body (1) is generally rectangular, characterized in that: The upper end of the main body (1) of the upper cover is fixedly connected to a heat dissipation fin assembly (4). The heat dissipation fin assembly (4) is an integrally formed structure and includes a base (41), large fins (42) and small fins (43). The lower end face of the base (41) is attached to the upper end face of the main body (1). There are two large fins (42) located on the upper ends of both sides of the base (41). There are several small fins (43) located on the upper end of the base (41) between the two large fins (42). The large fins (42) extend outward to form outer fins (44). The upper end of the outer fins (44) An mounting plane (45) is formed. The cooling fan assembly (2) includes a fan housing (21) and a fan body (22). The fan housing (21) is rectangular in shape and has support columns (23) at its four corners. Bolt holes (24) are provided inside the support columns (23). The lower end face of the fan housing (21) is in contact with the mounting plane (45). A fixing plate (25) is formed inside the fan housing (21). The fan body (22) is connected to the fixing plate. The temperature sensor box (3) is fixedly installed on the upper end of the upper cover body (1) on one side of the heat dissipation fin assembly (4).
2. The motor controller cover with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The upper part of one side of the main body (1) of the cover has several placement slots (11), and a fixing block (5) is fixed in the placement slot (11). A connecting hole (51) is provided in the fixing block (5).
3. The motor controller cover with a high-efficiency heat dissipation structure according to claim 1, characterized in that: A limiting block (12) is formed on one side of the upper cover body (1).
4. The motor controller cover with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The main body of the upper cover (1) has mounting holes (13) at opposite corners.
5. The motor controller cover with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The height of the large fin (42) is greater than that of the small fin (43), and the small fin (43) forms a gap structure with the cooling fan assembly (2).