A motor rear end cover for easy heat dissipation

By installing a heat dissipation device and a connecting device on the rear cover of the motor, the problems of power consumption and noise in traditional fan cooling methods are solved, achieving efficient heat dissipation and convenient maintenance.

CN224459463UActive Publication Date: 2026-07-03ZHONGSHAN HENGTAI HARDWARE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN HENGTAI HARDWARE PROD CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional motor rear cover cooling relies on fan operation, which increases power consumption and operating costs. In addition, the fan is prone to wear and serious noise interference, making it difficult to meet the cooling requirements under high power operation.

Method used

The heat dissipation device is adopted, which is a heat dissipation system composed of a round frame, round plate, screw, hexagonal plate, heat conduction plate and heat pipe, etc. Combined with heat dissipation holes and connecting devices, the motor and the rear end cover are threadedly connected, which facilitates installation and disassembly.

Benefits of technology

It achieves rapid heat dissipation, reduces power consumption, extends equipment life, reduces noise interference, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224459463U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of motor heat dissipation technology, specifically to a motor rear end cover that facilitates heat dissipation. The utility model includes a rear end cover body, the surface of which is provided with a heat dissipation device. The heat dissipation device includes a circular frame slidably connected to the surface of the rear end cover body. A circular plate is fixedly connected to the inner surface of the circular frame, and four screws are threaded into the circular plate. Hexagonal plates are fixedly connected to the surfaces of the four screws. Four threaded grooves are formed on the surface of the rear end cover body, and the screws are threadedly connected to the inner walls of these grooves. This invention solves the problem that traditional rear end cover body heat dissipation relies on fan operation to promote airflow, allowing air to quickly flow over the surface of the rear end cover body to remove heat. However, long-term use of fan cooling continuously consumes electrical energy, leading to increased energy consumption and operating costs.
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Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, and in particular to a motor rear end cover that facilitates heat dissipation. Background Technology

[0002] Currently, motors generate a large amount of heat during operation. As an important component of the motor, the heat dissipation performance of the rear end cover has a significant impact on the motor's operational stability and service life. Traditional methods of heat dissipation for motor rear end covers often rely on the operation of fans to promote airflow, allowing air to quickly flow across the surface of the rear end cover and carry away heat. However, long-term use of fans for heat dissipation has many drawbacks. For example, continuous fan operation requires constant power consumption, leading to increased energy consumption of the entire device and increased operating costs. The fan motor, blades, and other components are prone to wear and aging due to long-term operation, reducing the fan's service life and increasing the risk of failure. Furthermore, the noise generated by the fan increases with usage time, causing serious interference in environments with high noise requirements. In addition, the traditional rear end cover itself has limited heat dissipation structure, and simply adding heat sinks or natural heat dissipation is insufficient to meet the heat dissipation requirements of the motor's increasingly high-power operation.

[0003] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: the traditional way of heat dissipation of the rear end cover body is to use the operation of a fan to promote airflow, so that the air can quickly flow over the surface of the rear end cover body body to remove heat. However, the long-term use of fan cooling will continuously consume electrical energy, leading to an increase in the energy consumption of the entire device and an increase in the cost of use. Therefore, in order to solve the above problems, a motor rear end cover that facilitates heat dissipation is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the traditional method of heat dissipation for the rear end cover body relies on the operation of a fan to promote airflow, allowing the air to quickly flow over the surface of the rear end cover body to remove heat. However, long-term use of fan cooling will continuously consume electrical energy, leading to increased energy consumption and operating costs for the entire device. Therefore, this invention proposes a motor rear end cover that facilitates heat dissipation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a motor rear end cover for easy heat dissipation, comprising a rear end cover body, a heat dissipation device provided on the surface of the rear end cover body, the heat dissipation device comprising a circular frame, the circular frame being slidably connected to the surface of the rear end cover body, a circular plate being fixedly connected to the inner surface of the circular frame, four screws being threaded into the circular plate, and a hexagonal plate being fixedly connected to the surface of each of the four screws, four screw grooves being opened on the surface of the rear end cover body, the screws being threadedly connected to the inner wall of the screw grooves of the rear end cover body, and a number of long plates being fixedly connected to the arc surface of the circular frame.

[0006] The effect achieved by the above components is as follows: by setting up a heat dissipation device, the heat dissipation effect of the rear cover body is achieved quickly. This avoids the problem that the traditional method of heat dissipation of the rear cover body is to use a fan to make air flow and then make the air flow quickly over the surface of the rear cover body to remove heat. However, the long-term use of fan cooling will continuously consume electrical energy, leading to an increase in the energy consumption of the entire device and an increase in the cost of use.

[0007] Preferably, the surface of the rear cover body is provided with a plurality of heat dissipation holes, and the size of the circular plate is adapted to the size of the inner surface of the circular frame.

[0008] The purpose of the above components is to allow the hot air generated inside the motor to convect with the cold air outside during operation, thereby accelerating heat dissipation.

[0009] Preferably, a heat-conducting sheet is fixedly connected to the inner surface of the rear end cover body, and the size of the screw is adapted to the size of the screw groove of the rear end cover body.

[0010] The effect achieved by the above components is that the heat-conducting plate can quickly conduct the heat generated inside the motor and transferred to the inner surface of the rear end cover body from the inside of the rear end cover body to the outside.

[0011] Preferably, six heat pipes are fixedly connected to the surface of the heat-conducting sheet, and the size of the heat-conducting sheet is adapted to the size of the inner surface of the rear cover body.

[0012] The effect achieved by the above components is that the heat pipe has extremely strong thermal conductivity, which can quickly conduct the heat generated inside the motor through the inner surface of the rear cover body, thus accelerating heat dissipation.

[0013] Preferably, a rubber ring is fixedly connected to the inner surface of the rear cover body, and the rubber ring is made of rubber.

[0014] The effect achieved by the above components is that the rubber ring has a certain elasticity and can fill the gap at the connection of the rear cover body, thereby preventing external dust, moisture and impurities from entering the internal space protected by the rear cover body, and preventing these foreign objects from causing pollution, corrosion and other damage to the internal components.

[0015] Preferably, the surface of the rear end cover body is provided with a connecting device, the connecting device includes two connecting plates, both of which are fixedly connected to the arc surface of the rear end cover body, and a middle plate is fixedly connected to the surface of both connecting plates. An L-shaped plate is fixedly connected to the surface of the middle plate, and a threaded rod is inserted into the inner thread of the L-shaped plate.

[0016] The effect achieved by the above components is as follows: by setting up the connecting device, the motor and the rear cover body are connected by threads. This connection method makes the installation and disassembly of the rear cover body more convenient. When the motor needs to be repaired or parts replaced, the staff only needs to unscrew the threaded rod to separate the motor from the rear cover body, which greatly facilitates the maintenance work of the staff.

[0017] Preferably, a circular block is fixedly connected to the surface of the threaded rod, and four circular rods are fixedly connected to the arc surface of the circular block.

[0018] The effect achieved by the above components is that the round block and the round rod provide great convenience to the workers, enabling them to easily and quickly operate the threaded rod to move forward or backward.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] 1. In this utility model, by setting up a heat dissipation device, the effect of rapid heat dissipation of the rear cover body is achieved, avoiding the traditional method of heat dissipation of the rear cover body, which relies on the operation of a fan to promote airflow and then allow the air to flow quickly over the surface of the rear cover body to remove heat. However, long-term use of fan heat dissipation will continuously consume electrical energy, leading to an increase in the energy consumption of the entire device and an increase in the cost of use.

[0021] 2. In this utility model, by setting a connecting device, the motor and the rear cover body are connected by threads. This connection method makes the installation and disassembly of the rear cover body more convenient. When the motor needs to be repaired or parts replaced, the staff only needs to unscrew the threaded rod to separate the motor from the rear cover body, which greatly facilitates the maintenance work of the staff. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the heat dissipation device in this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of the heat dissipation device in this utility model;

[0025] Figure 4 This is a partial structural diagram of the heat dissipation device in this utility model;

[0026] Figure 5 This is a schematic diagram of the connecting device in this utility model.

[0027] Legend: 1. Rear end cover body; 2. Heat dissipation device; 21. Circular frame; 22. Circular plate; 23. Screw; 24. Hexagonal plate; 25. Long plate; 26. Heat dissipation hole; 27. Heat-conducting plate; 28. Heat pipe; 29. ​​Rubber ring; 3. Connecting device; 31. Connecting plate; 32. Intermediate plate; 33. L-shaped plate; 34. Threaded rod; 35. Circular block; 36. Circular rod. Detailed Implementation

[0028] Reference Figure 1 As shown, this utility model provides a technical solution: a motor rear end cover for easy heat dissipation, including a rear end cover body 1. The surface of the rear end cover body 1 is provided with a heat dissipation device 2. By setting the heat dissipation device 2, the effect of rapid heat dissipation of the rear end cover body 1 is achieved, avoiding the traditional method of heat dissipation of the rear end cover body 1, which relies on the operation of a fan to promote airflow and then allow the air to quickly flow over the surface of the rear end cover body 1 to carry away the heat. However, long-term use of fan heat dissipation will continuously consume electrical energy, leading to an increase in the energy consumption of the entire device and increasing the operating cost. The surface of the rear end cover body 1 is provided with a connecting device 3. By setting the connecting device 3, the motor and the rear end cover body 1 are threadedly connected. This connection method makes the installation and disassembly of the rear end cover body 1 more convenient. When the motor needs to be repaired or parts replaced, the staff only needs to unscrew the threaded rod 34 to separate the motor from the rear end cover body 1, which greatly facilitates the maintenance work of the staff.

[0029] The specific setup and function of its heat dissipation device 2 and connecting device 3 will be described in detail below.

[0030] Reference Figure 2 , Figure 3 and Figure 4As shown in this embodiment: the heat dissipation device 2 includes a circular frame 21, which is slidably connected to the surface of the rear end cover body 1. A circular plate 22 is fixedly connected to the inner surface of the circular frame 21. Four screws 23 are threaded into the circular plate 22. Hexagonal plates 24 are fixedly connected to the surfaces of the four screws 23. Four screw grooves are opened on the surface of the rear end cover body 1. The screws 23 are threaded to the inner walls of the screw grooves of the rear end cover body 1. Several long plates 25 are fixedly connected to the arc surface of the circular frame 21. Several heat dissipation holes 26 are opened on the surface of the rear end cover body 1. The size of the circular plate 22 is adapted to the size of the inner surface of the circular frame 21. The purpose of setting the heat dissipation holes 26 is to allow the hot air generated inside the motor during operation to form convection with the cold air outside, thereby accelerating heat dissipation. A heat-conducting plate 27 is fixedly connected to the inner surface of the rear end cover body 1. The size of the screws 23 is adapted to the size of the inner surface of the circular frame 21. The size of the screw groove of the rear cover body 1 is matched. The heat conduction plate 27 can quickly conduct the heat generated inside the motor to the inner surface of the rear cover body 1 from the inside to the outside. Six heat pipes 28 are fixedly connected to the surface of the heat conduction plate 27. The size of the heat conduction plate 27 is matched to the size of the inner surface of the rear cover body 1. The heat pipes 28 have extremely strong thermal conductivity and can quickly conduct the heat generated inside the motor from the inner surface of the rear cover body 1 to accelerate heat dissipation. A rubber ring 29 is fixedly connected to the inner surface of the rear cover body 1. The rubber ring 29 is made of rubber and has a certain elasticity. It can fill the gap at the connection of the rear cover body 1, thereby preventing external dust, moisture and impurities from entering the internal space protected by the rear cover body 1 and preventing these foreign objects from causing pollution, corrosion and other damage to the internal components.

[0031] Reference Figure 5 As shown, specifically, the connecting device 3 includes two connecting plates 31, both of which are fixedly connected to the arc surface of the rear cover body 1. A middle plate 32 is fixedly connected to the surface of each of the two connecting plates 31. An L-shaped plate 33 is fixedly connected to the surface of the middle plate 32. A threaded rod 34 is inserted into the inner thread of the L-shaped plate 33. A round block 35 is fixedly connected to the surface of the threaded rod 34. Four round rods 36 are fixedly connected to the arc surface of the round block 35. The round block 35 and the round rods 36 provide great convenience for the workers, enabling them to easily and quickly operate the threaded rod 34 to move forward or backward.

[0032] Working principle: When the motor generates heat during operation, the heat pipe 28 connected to the motor has extremely high thermal conductivity, which can quickly absorb the high heat generated in specific parts of the motor and conduct it to the heat-conducting plate 27 connected to it. The heat-conducting plate 27 then dissipates the heat with its large heat dissipation area, greatly improving the heat dissipation efficiency. Then, the heat dissipation holes 26 on the surface of the rear cover body 1 can serve as an additional "heat outlet", shortening the path of heat conduction from the inside of the rear cover body 1 to the outside, thereby reducing the overall heat load. When the heat is conducted to the surface of the rear cover body 1, the long plate 25 can significantly increase the contact area between the rear cover body 1 and the air, allowing the heat conducted to the surface to be transferred to the air, accelerating the heat dissipation speed. By setting up the heat dissipation device 2, the effect of rapid heat dissipation of the rear cover body 1 is achieved. This avoids the problem that the traditional method of heat dissipation of the rear cover body 1 relies on the operation of a fan to promote airflow, allowing the air to quickly flow over the surface of the rear cover body 1 to carry away the heat. However, long-term use of fan cooling will continuously consume electrical energy, leading to an increase in the energy consumption of the entire device and increasing the operating cost.

[0033] When the staff needs to remove the rear cover body 1 from the motor, they first rotate the round rod 36 upwards. The round rod 36 drives the round block 35 to rotate, and the round block 35 drives the threaded rod 34 to move upwards, thus separating it from the surface of the motor. The round block 35 and the round rod 36 provide great convenience for the staff, allowing them to easily and quickly operate the threaded rod 34 to move forward or backward. By setting the connecting device 3, the motor and the rear cover body 1 are threadedly connected. This connection method makes the installation and removal of the rear cover body 1 more convenient. When the motor needs to be repaired or parts replaced, the staff only needs to unscrew the threaded rod 34 to separate the motor from the rear cover body 1, which greatly facilitates the staff's maintenance work.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A motor rear end cover for easy heat dissipation, comprising a rear end cover body (1), characterized in that: The surface of the rear cover body (1) is provided with a heat dissipation device (2). The heat dissipation device (2) includes a circular frame (21). The circular frame (21) is slidably connected to the surface of the rear cover body (1). A circular plate (22) is fixedly connected to the inner surface of the circular frame (21). Four screws (23) are threaded into the circular plate (22). A hexagonal plate (24) is fixedly connected to the surface of each of the four screws (23). Four screw grooves are opened on the surface of the rear cover body (1). The screws (23) are threaded to the inner wall of the screw grooves of the rear cover body (1). Several long plates (25) are fixedly connected to the arc surface of the circular frame (21).

2. The motor rear end cover for easy heat dissipation according to claim 1, characterized in that: The surface of the rear cover body (1) is provided with a number of heat dissipation holes (26), and the size of the circular plate (22) is adapted to the size of the inner surface of the circular frame (21).

3. The motor rear end cover for easy heat dissipation according to claim 1, characterized in that: A heat-conducting plate (27) is fixedly connected to the inner surface of the rear cover body (1), and the size of the screw (23) is adapted to the size of the screw groove of the rear cover body (1).

4. The motor rear end cover for easy heat dissipation according to claim 3, characterized in that: The surface of the heat-conducting plate (27) is fixedly connected with six heat pipes (28), and the size of the heat-conducting plate (27) is adapted to the size of the inner surface of the rear cover body (1).

5. The motor rear end cover for easy heat dissipation according to claim 1, characterized in that: A rubber ring (29) is fixedly connected to the inner surface of the rear cover body (1), and the rubber ring (29) is made of rubber.

6. The motor rear end cover for easy heat dissipation according to claim 1, characterized in that: The surface of the rear cover body (1) is provided with a connecting device (3). The connecting device (3) includes two connecting plates (31). Both connecting plates (31) are fixedly connected to the arc surface of the rear cover body (1). Both connecting plates (31) are fixedly connected to a middle plate (32). The surface of the middle plate (32) is fixedly connected to an L-shaped plate (33). A threaded rod (34) is inserted into the L-shaped plate (33).

7. A motor rear end cover for easy heat dissipation according to claim 6, characterized in that: A circular block (35) is fixedly connected to the surface of the threaded rod (34), and four circular rods (36) are fixedly connected to the arc surface of the circular block (35).