Motor air cooling structure
By designing an air-cooled structure in the motor and using the combination of thermal conduction plate and fan, the problem of heat accumulation during the motor operation is solved, and the internal parts of the motor is simultaneously cooled down, which improves the operating efficiency and life of the motor.
Patent Information
- Application Number
- CN202420756877.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-12
AI Technical Summary
During operation, the temperature rises due to heat accumulation during the motor, which affects the efficiency of the motor and may be damaged.
An air-cooled motor structure is designed, including an outer shell, an inner shell, a thermal plate and a fan. The thermal conductor plate is installed in the communication groove, the stator is closely fitted with the thermal conductor plate, and heat is transmitted between the outer shell and the inner shell through the thermal conductor plate. The fan increases the thermal conductivity area through the heat dissipation strips, which achieves cooling of the internal parts of the motor while reducing the temperature.
It effectively improves the heat dissipation efficiency of the motor, avoids the problem that the fitting surface between the stator and the inner shell cannot cool down, extends the service life of the motor, and prevents damage caused by overheating.
Smart Images
Figure CN222802687U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motors, and in particular relates to an air cooling structure for a motor. Background Art
[0002] With the rapid development of the industrial field, motors, as important power conversion equipment, are widely used in various industrial production and daily life. During the operation of the motor, the current generates heat through the coil. If the heat is not dissipated in time, the motor temperature will rise, affecting the operating efficiency of the motor and even damaging the motor.
[0003] When the motor is in use, a magnet is installed inside the motor. When the magnet in the motor is energized, eddy currents exist in the magnetic field. The eddy currents are generated inside the magnet, resulting in energy loss and conversion into heat energy, which makes the magnet heat up. Since the magnet is usually fixed to the inner wall of the motor housing, the heat generated by the magnet is easily transferred to the surface of the housing, and the contact surface between the magnet and the housing is not easy to cool down, which makes the motor housing easily hot, thereby causing damage to the user;
[0004] In order to solve the above problems, this application proposes a motor air cooling structure. Utility Model Content
[0005] In view of the problems in the related technology, the utility model proposes a motor air cooling structure to overcome the above technical problems existing in the existing related technology.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A motor air cooling structure comprises an outer shell, a rotating shaft is rotatably connected at the inner center of the outer shell, an inner shell is fixedly connected to the inner side wall of the outer shell, a fan is fixedly connected to the outer side wall of the rotating shaft, a limiting groove is provided on the inner side wall of the inner shell, a stator is fixedly connected to the inner shell via the limiting groove, a connecting groove is provided on the inner shell via the limiting groove, and a heat conducting plate is fixedly connected to the inner shell via the connecting groove.
[0008] Preferably, a heat dissipation bar is fixedly connected to the outer side of the heat conducting plate, and a plurality of the heat dissipation bars are provided, and the plurality of the heat dissipation bars are arranged in a linear array on the outer side wall of the heat conducting plate.
[0009] By providing the heat dissipation strips, it is achieved that by installing a plurality of heat dissipation strips on the outer side wall of the heat conducting plate, the heat dissipation area of the heat conducting plate can be effectively increased, thereby improving the heat dissipation efficiency.
[0010] Preferably, the outer side wall of the inner shell is provided with a first flow hole, the top of the outer shell is provided with an air inlet hole, and the inner bottom of the inner shell is provided with a second flow hole.
[0011] By providing the first flow hole, the air inlet hole and the second flow hole, the fan drives the wind to enter the interior of the inner shell from the air inlet hole, and flows into the interior of the outer shell and the inner shell respectively through the first flow hole and the second flow hole, thereby cooling the motor.
[0012] Preferably, the outer side wall of the rotating shaft is fixedly connected with a rotor, and the rotor is located at the center of the inner shell.
[0013] By providing the rotor, it is achieved that the rotor drives the rotating shaft to rotate under the action of the stator, and drives the fan to operate during the rotation.
[0014] Preferably, a first air outlet is provided at the bottom of the outer shell, and a second air outlet is provided at the bottom outer wall of the inner shell.
[0015] By providing the first air outlet and the second air outlet, the first air outlet can discharge the air after the heat is dissipated in the outer shell, and the second air outlet can discharge the air after the temperature is reduced in the inner shell.
[0016] To sum up, the technical effects and advantages of the utility model are as follows: the air-cooling structure of the motor, by installing the heat conduction plate inside the connecting groove, when the stator is installed inside the limiting groove, one side of the heat conduction plate is tightly fitted with one side of the stator, so that the heat on the surface of the stator can be transferred to the area between the outer shell and the inner shell through the heat conduction plate, and then the inside and outside of the inner shell can be cooled simultaneously by the fan, which can avoid the side of the stator that is in contact with the inner shell from being unable to cool down, thereby effectively cooling the stator and avoiding damage to the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the fan of the utility model and its related structures;
[0019] Figure 3 This is a schematic diagram of the stator and related structures of the utility model;
[0020] Figure 4 This is a schematic diagram of the heat conducting plate of the utility model and its related structures.
[0021] In the figure: 1. outer shell; 2. rotating shaft; 3. inner shell; 4. fan; 5. limiting groove; 6. stator; 7. connecting groove; 8. heat conducting plate; 9. heat dissipation strip; 10. first circulation hole; 11. air inlet hole; 12. second circulation hole; 13. rotor; 14. first air outlet hole; 15. second air outlet hole. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0023] Reference Figure 1-3 , a motor air cooling structure, including a shell 1, a rotating shaft 2 is rotatably connected at the inner center of the shell 1, an inner shell 3 is fixedly connected to the inner side wall of the shell 1, a fan 4 is fixedly connected to the outer side wall of the rotating shaft 2, a limiting groove 5 is provided on the inner side wall of the inner shell 3, a stator 6 is fixedly connected to the inner shell 3 through the limiting groove 5, a connecting groove 7 is provided on the inner shell 3 through the limiting groove 5, a heat conducting plate 8 is fixedly connected to the inner shell 3 through the connecting groove 7, the material of the heat conducting plate 8 is copper, the melting point of copper is high, and the corrosion rate is moderate, by installing the heat conducting plate 8 inside the connecting groove 7, when the stator 6 is installed inside the limiting groove 5, the side of the stator 6 close to the inner shell 3 will be closely fitted with the heat conducting plate 8, a heat dissipation groove is provided between the shell 1 and the inner shell 3, and the side of the heat conducting plate 8 away from the stator 6 goes deep into the heat dissipation groove between the shell 1 and the inner shell 3, so that the heat conducting plate 8 between the shell 1 and the inner shell 3 can be cooled by the fan 4, and then the inside and outside of the stator 6 can be effectively cooled and cooled at the same time.
[0024] Reference Figure 2-4 A heat dissipation bar 9 is fixedly connected to the outer side of the heat conducting plate 8, and a plurality of heat dissipation bars 9 are provided. The plurality of heat dissipation bars 9 are arranged in a linear array on the outer side wall of the heat conducting plate 8. By installing a plurality of heat dissipation bars 9 on the outer side wall of the heat conducting plate 8 between the outer shell 1 and the inner shell 3, the heat dissipation area of the heat conducting plate 8 can be increased through the heat dissipation bars 9, so that the heat dissipation bars 9 and the heat conducting plate 8 can quickly dissipate heat from the stator 6.
[0025] Reference Figure 2 A first flow hole 10 is provided on the outer wall of the inner shell 3, an air inlet hole 11 is provided on the top of the outer shell 1, and a second flow hole 12 is provided on the inner bottom of the inner shell 3. Since the fan 4 is installed on the outer wall of the rotating shaft 2, when the fan 4 is running, air enters the inner shell 3 from the air inlet hole 11, and enters the inner bottom of the inner shell 3 and the heat dissipation groove inside the outer shell 1 through the first flow hole 10 and the second flow hole 12 provided inside the inner shell 3, so that the parts inside the inner shell 3 can be quickly cooled, and the inside and outside of the stator 6 can be cooled at the same time, so that the cooling efficiency of the stator 6 is improved.
[0026] Reference Figure 2The outer wall of the rotating shaft 2 is fixedly connected with a rotor 13, and the rotor 13 is located at the center of the inner shell 3. The rotor 13 is installed on the outer wall of the rotating shaft 2, and the rotor 13 is located between the multiple stators 6. The rotor 13 is located below the second flow hole 12. When air enters the inner shell 3, the rotor 13 and the stator 6 can be cooled, thereby avoiding damage to the inside of the motor due to excessive temperature.
[0027] Reference Figure 2 A first air outlet 14 is provided at the bottom of the outer shell 1, and a second air outlet 15 is provided on the outer bottom wall of the inner shell 3. The air used for cooling inside the inner shell 3 can be discharged through the second air outlet 15, so that the first air outlet 14 can discharge the air used for cooling in the cooling tank inside the outer shell 1, thereby effectively avoiding the hot air from not being discharged in time and affecting the use of the motor.
[0028] Working principle: by installing the heat conducting plate 8 inside the connecting groove 7, and then installing the stator 6 inside the limiting groove 5, the stator 6 can fit with the heat conducting plate 8, so that the heat generated by the stator 6 can be transferred to the inside of the heat conducting plate 8. The heat conducting plate 8 is installed with a heat dissipation strip 9 on the outer wall between the outer shell 1 and the inner shell 3, so that the rotating shaft 2 can drive the fan 4 to rotate, and then the fan 4 can suck air into the inner shell 3 from the air inlet 11. After the air enters the inner shell 3, the air cools down the heat dissipation strip 9 and the parts inside the inner shell 3 through the first circulation hole 10 and the second circulation hole 12, so that the parts inside the motor can operate normally.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A motor air cooling structure, comprising a housing (1), characterized in that: A rotating shaft (2) is rotatably connected at the inner center of the outer shell (1); an inner shell (3) is fixedly connected to the inner side wall of the outer shell (1); a fan (4) is fixedly connected to the outer side wall of the rotating shaft (2); a limiting groove (5) is provided on the inner side wall of the inner shell (3); the inner shell (3) is fixedly connected to a stator (6) via the limiting groove (5); a connecting groove (7) is provided on the inner shell (3) via the limiting groove (5); and the inner shell (3) is fixedly connected to a heat conducting plate (8) via the connecting groove (7).
2. The motor air cooling structure according to claim 1, characterized in that: A heat dissipation bar (9) is fixedly connected to the outer side of the heat conducting plate (8), and a plurality of the heat dissipation bars (9) are provided, and the plurality of the heat dissipation bars (9) are arranged in a linear array on the outer side wall of the heat conducting plate (8).
3. The motor air cooling structure according to claim 1, characterized in that: The outer wall of the inner shell (3) is provided with a first circulation hole (10), the top of the outer shell (1) is provided with an air inlet hole (11), and the inner bottom of the inner shell (3) is provided with a second circulation hole (12).
4. The motor air cooling structure according to claim 1, characterized in that: A rotor (13) is fixedly connected to the outer wall of the rotating shaft (2), and the rotor (13) is located at the center of the inner shell (3).
5. The motor air cooling structure according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with a first air outlet (14), and the bottom outer wall of the inner shell (3) is provided with a second air outlet (15).