Motor shaft air cooling structure
By setting cooling channels and fans in the motor output shaft, the problem of insufficient heat dissipation of the motor is solved, rapid heat dissipation and cooling of the motor is achieved, and the service life and efficiency of the motor are improved.
Patent Information
- Application Number
- CN202421041265.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-13
AI Technical Summary
During long-term operation, existing motors may suffer from insufficient heat dissipation, resulting in increased internal temperature, which may easily cause motor damage.
The cooling channel and fan are set up in the motor output shaft. When the motor output shaft rotates, the fan is driven to rotate simultaneously. The fan rotates to generate wind. The wind enters the cooling channel through the flap, quickly taking away heat, and achieving rapid heat dissipation and cooling of the motor.
Through this structure, the motor can achieve rapid heat dissipation and cooling, improve the service life of the motor, and at the same time cool the oil in the oil cavity to improve the efficiency of the motor.
Smart Images
Figure CN222509007U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an air cooling structure for a motor shaft and belongs to the technical field of motor shafts. Background Art
[0002] With the continuous development of industry, the demand for higher quality equipment is increasing, and the motor technology, which is the core power of the equipment, is getting better and better. The heat dissipation of the motor is related to the quality of the entire motor. Often, the increase in the internal temperature of the motor after long-term operation is the main cause of motor damage. And because most of the structures in the motor are mounted on the motor shaft, the large amount of heat generated by each structure during operation is transferred to each other through the motor shaft, causing the temperature of the entire motor to rise rapidly. At the same time, it is impossible to effectively dissipate heat, which can easily cause motor damage. Utility Model Content
[0003] The utility model aims to provide a motor shaft air cooling structure for realizing rapid heat dissipation and temperature reduction of the motor in view of the shortcomings of the prior art.
[0004] To achieve the purpose, the technical solution adopted by the utility model is:
[0005] The motor shaft air cooling structure comprises a motor output shaft, wherein a cooling channel is formed through the motor output shaft, and a fan is also arranged on the motor output shaft. The motor output shaft drives the fan to rotate synchronously, and the wind generated by the rotation of the fan enters the cooling channel.
[0006] As a further optimization of the above technical solution: an output positioning block is formed at one end of the motor output shaft, a receiving cavity connected to the cooling channel is formed in the output positioning block, and the fan is located in the receiving cavity.
[0007] As a further optimization of the above technical solution: the inner wall of the accommodating cavity is bent to form a sixth positioning step, and the side surface of the fan is in contact with the sixth positioning step.
[0008] As a further optimization of the above technical solution: a guiding slope is formed at the end of the cooling channel, and the guiding slope forms a bell mouth at the end where the cooling channel is connected to the fan.
[0009] Compared with the prior art, the utility model provides a cooling channel and a fan in the motor output shaft. When the motor output shaft rotates, the fan is driven to rotate synchronously. When the fan rotates, wind is generated. The wind enters the cooling channel through the bellmouth, and quickly takes away the heat of the objects in contact with the motor output shaft through the motor output shaft. Multiple structures in the motor can dissipate heat at the same time, with high heat dissipation efficiency, and rapid heat dissipation and cooling of the motor are achieved. The heat dissipation structure is simple and effective, and the service life of the motor is improved. At the same time, when the outer wall of the motor output shaft contacts the oil cavity, the wind in the cooling channel can take away the heat of the oil in the oil cavity through the motor output shaft, and cool the oil in the oil cavity, so that the cooling effect of the oil in the oil cavity is better, the temperature rise is slower, and rapid heat dissipation is achieved, thereby improving the efficiency of the motor and improving the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of a hub reduction motor. DETAILED DESCRIPTION
[0011] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations. Figure 1 As shown, a hub reduction motor includes a stator 1, a rotor 2, a motor driving shaft 3, a reduction mechanism 4, a motor output shaft 5, and a wheel rim 6. The rotor 2 is located in the stator 1, and the rotor 2 is sleeved on the motor driving shaft 3 and connected to the motor driving shaft 3. The motor driving shaft 3 is transmission-connected to the motor output shaft 5 through the reduction mechanism 4, and the motor output shaft 5 is fixed to the wheel rim 6. After power is turned on, the stator 1 drives the rotor 2 to rotate, and the rotor 2 drives the motor driving shaft 3 to rotate. The motor driving shaft 3 reduces the power output to the motor output shaft 5 through the reduction mechanism 4, so that the motor output shaft 5 drives the wheel rim 6 to rotate.
[0012] In the above technical scheme: a cooling channel 511 is formed through the motor output shaft 5, an output positioning block 512 is formed at one end of the motor output shaft 5, a receiving chamber 513 connected to the cooling channel 511 is formed in the output positioning block 512, the inner wall of the receiving chamber 513 is bent to form a sixth positioning step, a fan 514 is fixed in the receiving chamber 513, and the side of the fan 514 is in contact with the sixth positioning step. A guide slope 515 is formed at the end of the inner wall of the cooling channel 511, and the guide slope 515 forms a bell mouth at the end where the cooling channel 511 and the receiving chamber 513 are connected. When the motor output shaft 5 rotates, the fan 514 is driven to rotate synchronously, and wind is generated when the fan 514 rotates. The wind enters the cooling channel 511 through the bell mouth, and quickly takes away the heat of the object in contact with the motor output shaft 5 through the motor output shaft 5, and multiple structures in the motor can be cooled at the same time, with high heat dissipation efficiency, realizing rapid heat dissipation and cooling of the motor, and the heat dissipation structure is simple and effective, which improves the service life of the motor. At the same time, if a cooling oil chamber is provided in the motor, the outer wall of the motor output shaft 5 is in contact with the oil chamber, and the wind energy in the cooling channel 511 can take away the heat of the oil in the oil chamber through the motor output shaft 5, thereby cooling the oil in the oil chamber, so that the cooling effect of the oil in the oil chamber is better, the temperature rises more slowly, and rapid heat dissipation is achieved, thereby improving the efficiency of the motor and increasing the service life of the motor.
[0013] The preferred specific embodiments of the present utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should fall within the protection scope of the present utility model.
Claims
1. The motor shaft air cooling structure is characterized by The invention comprises a motor output shaft (5), wherein a cooling channel (511) is formed through the motor output shaft (5), and a fan (514) is also provided on the motor output shaft (5); the motor output shaft (5) drives the fan (514) to rotate synchronously, and wind generated by the rotation of the fan (514) enters the cooling channel (511); and a guide slope (515) is formed at the end of the cooling channel (511), and the guide slope (515) forms a bell mouth at the end where the cooling channel (511) and the fan (514) are connected.
2. The motor shaft air cooling structure according to claim 1 is characterized in that An output positioning block (512) is formed at one end of the motor output shaft (5), a receiving cavity (513) communicating with the cooling channel (511) is formed inside the output positioning block (512), and the fan (514) is located inside the receiving cavity (513).
3. The motor shaft air cooling structure according to claim 2 is characterized in that The inner wall of the accommodating cavity (513) is bent to form a sixth positioning step, and the side surface of the fan (514) is in contact with the sixth positioning step.