A motor with an air flow heat dissipation structure

Abstract

The present invention relates to a motor with an air flow heat dissipation structure, which includes a housing structure, an inner housing and a heat dissipation structure. The housing structure includes a fixed housing, an annular sliding groove and a rotating housing. An annular sliding groove is formed at the top of the fixed housing, and a rotating housing is slidably arranged in the annular sliding groove. An inner housing is fixedly arranged in the fixed housing. By changing the traditional motor housing, the housing of the motor is divided into a housing structure and an inner housing. The housing structure is composed of a fixed housing and a rotating housing. The rotating housing can be rotatably connected to the fixed housing through the annular sliding groove. Then, an inner housing is fixedly arranged inside the fixed housing, so that a heat dissipation cavity can be formed between the rotating housing and the inner housing. During the rotation of the rotating shaft, the rotating housing can be driven to rotate, and the flow guide plate inside the rotating housing can also accelerate the air flow. Through the provided open housing structure, the heat dissipation effect can be improved on the basis of installing a heat dissipation fan and heat dissipation fins.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and particularly to a motor with an air flow cooling structure. Background Art

[0002] A motor is an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. Its main function is to generate a driving torque and serve as a power source for electrical appliances or various machines. A generator is represented by the letter G in a circuit, and its main function is to convert mechanical energy into electrical energy. Currently, the most commonly used method is to use thermal energy, water energy, etc. to drive the rotor of the generator to generate electricity.

[0003] After a motor has been used for a long time, it will heat up inside. If heat dissipation is not carried out in a timely manner, the insulation temperature of the motor winding will rise. Insulation is very sensitive to high temperatures, which will accelerate aging and reduce the service life. If the temperature rises too high, the insulation will carbonize and lose its insulating function, and the motor winding will short-circuit and malfunction. Therefore, the heat dissipation of the motor is crucial.

[0004] However, for traditional motor cooling structures, most of them are equipped with cooling fans inside or have cooling fins inside the housing for physical heat dissipation. Although it can achieve partial heat dissipation effects, when the temperature inside the motor continues to rise, since the housing of the motor is sealed, the heat of the motor housing still cannot be quickly exchanged with the outside world. As a result, when the motor rotates at high speed, the heat dissipation effects generated by the cooling fan or cooling fins are not sufficient to effectively dissipate the heat of the motor. Therefore, the service life of the motor will still be damaged. Summary of the Invention

[0005] In view of the deficiencies of the existing technology, the present invention provides a motor with an air flow cooling structure, and the specific technical solutions are as follows:

[0006] A motor with an air flow cooling structure includes a housing structure, an inner housing, and a cooling structure. The housing structure includes a fixed housing, an annular chute, and a rotating housing. An annular chute is provided at the top of the fixed housing, and a rotating housing is slidably arranged in the annular chute. An inner housing is fixedly arranged inside the fixed housing. Stators are respectively fixedly arranged on both sides inside the inner housing, and a rotor is fixedly arranged between the two stators. A first rotating shaft and a second rotating shaft are respectively fixedly arranged at both ends of the rotor. The cooling structure is located inside the rotating housing and includes a cooling chamber, a cooling fan, cooling holes, and a stop block. A cooling chamber is formed between the rotating housing and the inner housing, and a cooling fan is fixedly sleeved at the end of the second rotating shaft.

[0007] As an improvement of the above technical solution, bearings are respectively fixedly arranged on the outer circumferences of the first rotating shaft and the second rotating shaft at both ends of the inner housing, and the first rotating shaft and the second rotating shaft are respectively slidably connected to the bearings.

[0008] As an improvement of the above technical solution, an air inlet is provided at the top of the rotating shell directly above the cooling fan, and a filter screen is fixedly arranged in the air inlet.

[0009] As an improvement of the above technical solution, the air inlet is circularly arranged.

[0010] As an improvement of the above technical solution, heat dissipation fins are fixedly arranged at equal intervals on the outer periphery of the stator inside the inner shell, and both ends of the heat dissipation fins are in contact with the inner shell and the stator respectively.

[0011] As an improvement of the above technical solution, guide plates are uniformly fixedly arranged on the inner wall of the rotating shell.

[0012] As an improvement of the above technical solution, a mounting block is fixedly sleeved at the bottom of the second rotating shaft on the cooling fan. Support columns are respectively fixedly arranged on both sides of the mounting block, and the bottoms of the support columns are fixedly connected to the rotating shell.

[0013] As an improvement of the above technical solution, heat dissipation holes are uniformly formed in the rotating shell, and a blocking block is slidably inserted into the heat dissipation holes.

[0014] As an improvement of the above technical solution, a support block is also fixedly arranged at the position corresponding to the heat dissipation hole in the rotating shell. A support rod is slidably inserted into the support block. One end of the support rod is fixedly connected to the blocking block. A return spring is also sleeved on the outer periphery of the support rod, and both ends of the return spring are fixedly connected to the support block and the blocking block respectively.

[0015] As an improvement of the above technical solution, a support plate is also fixedly arranged at the end of the support rod away from the blocking block.

[0016] Advantages of the present invention:

[0017] By changing the traditional motor housing, the motor housing is divided into an outer housing structure and an inner housing. The outer housing structure consists of a fixed housing and a rotating housing. The rotating housing can be rotatably connected to the fixed housing through an annular chute. Then, an inner housing is fixedly arranged inside the fixed housing, enabling a heat dissipation cavity to be formed between the rotating housing and the inner housing. Then, the stator and the rotor are fixedly installed inside the inner housing, and heat dissipation fins are installed between the inner housing and the rotor, which can transfer the heat inside the inner housing to the inner housing. This motor is a double-shaft extension motor. The first rotating shaft can be used as a transmission structure, and a heat dissipation fan is fixedly sleeved on the second rotating shaft, which can drive the heat dissipation fan to rotate during the rotation of the motor, thereby generating an air flow to squeeze the hot air in the heat dissipation cavity out of the air inlet and allowing the external hot air to enter the heat dissipation cavity, continuously dissipating heat from the motor. An installation block is also sleeved on the outer periphery of the second rotating shaft, and support columns are respectively fixedly arranged on both sides of the installation block. The bottom of the support column is also fixedly connected to the rotating housing. Therefore, the rotating housing can be driven to rotate during the rotation of the shaft, and the guide plate inside the rotating housing can also accelerate the flow of the air flow. By providing an open outer housing structure, the heat dissipation effect can be improved on the basis of installing the heat dissipation fan and the heat dissipation fins.

[0018] Furthermore, heat dissipation holes are evenly formed on the outer periphery of the rotating housing. Then, support blocks are fixedly arranged at positions corresponding to the heat dissipation holes inside the rotating housing. A support rod is slidably inserted into the support block, and a stop block is fixedly installed at the end of the support rod. The stop block is slidably connected to the heat dissipation hole. A return spring is also sleeved on the outer periphery of the support rod. Therefore, when the motor rotates at a high speed, the rotating housing will generate a centrifugal force to eject the stop block out of the heat dissipation hole, which can increase the contact area between the heat dissipation cavity and the outside of the motor, and can quickly exchange heat between the hot air inside the motor and the external air during the rotation of the rotating housing, thereby improving the heat dissipation effect when the motor rotates at a high speed. When the motor rotates at a low speed or does not rotate, the stop block will be pulled by the return spring to re-enter the heat dissipation hole, thus not affecting the sealing performance of the motor. The structure is simple and convenient to use. Description of the Drawings

[0019] Figure 1 Front view of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Structure diagram A in;

[0021] Figure 3 Top view of the sectional structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 Structure diagram B in;

[0023] Figure 5 Top view of the partial structure of the present invention.

[0024] Reference Signs: 1 - fixed housing; 2 - annular sliding groove; 3 - rotating housing; 301 - air inlet; 302 - filter screen; 4 - inner housing; 401 - bearing; 5 - stator; 6 - rotor; 601 - first rotating shaft; 602 - second rotating shaft; 7 - heat dissipation cavity; 8 - heat dissipation fan; 9 - heat dissipation fins; 10 - mounting block; 11 - support column; 12 - heat dissipation holes; 13 - stop block; 14 - deflector; 15 - support block; 16 - support rod; 17 - return spring; 18 - support plate. Detailed Embodiment

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, Figure 1 is the front view of the overall structure of the present invention;

[0027] Figure 2 is of the present invention Figure 1 Structural diagram A; Figure 3 is the top view of the sectional structure of the present invention; Figure 4 is of the present invention Figure 3 Structural diagram B; Figure 5 is the top view of the partial structure of the present invention.

[0028] A motor with an air flow heat dissipation structure includes a housing structure, an inner housing 4 and a heat dissipation structure.

[0029] The housing structure includes a fixed housing 1, an annular sliding groove 2 and a rotating housing 3. An annular sliding groove 2 is opened at the top of the fixed housing 1, and a rotating housing 3 is slidably arranged in the annular sliding groove 2. An inner housing 4 is fixedly arranged in the fixed housing 1, and a heat dissipation cavity 7 is formed between the rotating housing 3 and the inner housing 4;

[0030] On both sides inside the inner housing 4, a stator 5 is fixedly arranged respectively. Between the two stators 5, a rotor 6 is fixedly arranged. At both ends of the rotor 6, a first rotating shaft 601 and a second rotating shaft 602 are fixedly arranged respectively. At the bottom of the second rotating shaft 602, a mounting block 10 is fixedly sleeved. On both sides of the mounting block 10, a support column 11 is fixedly arranged respectively. The bottom of the support column 11 is fixedly connected to the rotating housing 3;

[0031] By changing the traditional motor housing, the motor housing is divided into an outer housing structure and an inner housing. The outer housing structure consists of a fixed housing 1 and a rotating housing 3. The rotating housing 3 can be rotatably connected to the fixed housing 1 through an annular sliding groove 2. Then, an inner housing 4 is fixedly arranged inside the fixed housing 1, enabling a heat dissipation cavity 7 to be formed between the rotating housing 3 and the inner housing 4. During the rotation of the second rotating shaft 602, the rotating housing 3 can be driven to rotate. By providing a rotating outer housing, the heat dissipation effect of the motor can be improved.

[0032] In order to reduce the wear generated when the first rotating shaft 601 and the second rotating shaft 602 rotate, bearings 401 are respectively fixedly arranged on the outer circumferences of the two ends of the inner housing 4 where the first rotating shaft 601 and the second rotating shaft 602 are located. The first rotating shaft 601 and the second rotating shaft 602 are respectively slidably connected to the bearings 401.

[0033] As Figure 1 and Figure 5 shown, Figure 1 This is the front view of the overall structure of the present invention; Figure 5 This is the top view of the partial structure of the present invention.

[0034] The heat dissipation structure is located inside the rotating housing 3. The heat dissipation structure includes a heat dissipation cavity 7, a heat dissipation fan 8, heat dissipation holes 12, and a stopper 13. A heat dissipation fan 8 is fixedly sleeved on the end of the second rotating shaft 602. An air inlet 301 is opened directly above the heat dissipation fan 8 at the top of the rotating housing 3, and a filter screen 302 is fixedly arranged in the air inlet 301. The air inlet 301 is circularly arranged;

[0035] This motor is a double-shaft extension motor. The first rotating shaft 601 can be used as a transmission structure. A heat dissipation fan 8 is fixedly sleeved on the second rotating shaft 602, which can drive the heat dissipation fan 8 to rotate during the rotation of the motor, thereby generating an air flow to squeeze the hot air in the heat dissipation cavity 7 out of the air inlet 301 and allowing the hot air from the outside to enter the heat dissipation cavity 7, continuously dissipating heat from the motor. The filter screen 302 can prevent dust or other impurities from the outside from entering the interior of the motor.

[0036] As Figure 1 shown, Figure 1 This is the front view of the overall structure of the present invention.

[0037] Inside the inner housing 4, heat dissipation fins 9 are fixedly arranged at equal intervals on the outer circumference of the stator 5, and both ends of the heat dissipation fins 9 are in contact with the inner housing 4 and the stator 5 respectively, which can transfer the heat inside the inner housing 4 to the inner housing 4.

[0038] As Figure 1 shown, Figure 1 This is the front view of the overall structure of the present invention.

[0039] In order to accelerate the flow of air during the rotation of the rotating shell 3, guide plates 14 are uniformly and fixedly arranged on the inner wall of the rotating shell 3, which can improve the heat dissipation effect on the basis of installing the cooling fan 8 and the cooling fins 9.

[0040] As Figure 1 , Figure 3 and Figure 4 shown, Figure 1 This is the front view of the overall structure of the present invention; Figure 3 This is the top view of the sectional structure of the present invention; Figure 4 This is Figure 3 Structure B diagram in the present invention.

[0041] Heat dissipation holes 12 are uniformly arranged in the rotating shell 3, and a blocking block 13 is slidably inserted into the heat dissipation holes 12. A support block 15 is also fixedly arranged at the position corresponding to the heat dissipation holes 12 in the rotating shell 3. A support rod 16 is slidably inserted into the support block 15. One end of the support rod 16 is fixedly connected to the blocking block 13. A return spring 17 is also sleeved on the outer periphery of the support rod 16, and both ends of the return spring 17 are fixedly connected to the support block 15 and the blocking block 13 respectively;

[0042] By uniformly arranging heat dissipation holes 12 on the outer periphery of the rotating shell 3, then fixedly arranging a support block 15 at the position corresponding to the heat dissipation holes 12 in the rotating shell 3, slidably inserting a support rod 16 into the support block 15, fixedly installing a blocking block 13 at the end of the support rod 16, slidingly connecting the blocking block 13 with the heat dissipation holes 12, and also sleeving a return spring 17 on the outer periphery of the support rod 16, when the motor rotates at a high speed, the rotating shell 3 will generate centrifugal force to throw the blocking block 13 out of the heat dissipation holes 12, which can increase the contact area between the heat dissipation cavity 7 and the outside of the motor, and can quickly exchange the hot air inside the motor with the outside air during the rotation of the rotating shell 3, so as to improve the heat dissipation effect when the motor rotates at a high speed. When the motor rotates at a low speed or does not rotate, the blocking block 13 will be pulled by the return spring 17 and re-enter the heat dissipation holes 12, thus not affecting the sealing performance of the motor. The structure is simple and convenient to use.

[0043] In order to prevent the support rod 16 from being completely thrown out of the support block 15, a support plate 18 is also fixedly arranged at the end of the support rod 16 away from the blocking block 13. The area of the support plate 18 is larger than the area of the insertion hole of the support block 15, so as to play a role in blocking.

[0044] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor with an air flow heat dissipation structure, comprising a housing structure, an inner housing (4) and a heat dissipation structure, characterized in that: The housing structure includes a fixed housing (1), an annular chute (2), and a rotating housing (3). An annular chute (2) is provided at the top of the fixed housing (1), and a rotating housing (3) is slidably arranged in the annular chute (2). An inner housing (4) is fixedly arranged in the fixed housing (1). On both sides inside the inner housing (4), stators (5) are fixedly arranged respectively. A rotor (6) is fixedly arranged between the two stators (5). The two ends of the rotor (6) are fixedly provided with a first rotating shaft (601) and a second rotating shaft (602) respectively. The heat dissipation structure is located inside the rotating housing (3). The heat dissipation structure includes a heat dissipation cavity (7), a heat dissipation fan (8), heat dissipation holes (12), and a stop block (13). A heat dissipation cavity (7) is formed between the rotating housing (3) and the inner housing (4). The end of the second rotating shaft (602) is fixedly sleeved with a heat dissipation fan (8); Heat dissipation holes (12) are evenly provided in the rotating housing (3), and a stop block (13) is slidably inserted into the heat dissipation holes (12); At the position corresponding to the heat dissipation holes (12) inside the rotating housing (3), a support block (15) is also fixedly arranged. A support rod (16) is slidably inserted into the support block (15). One end of the support rod (16) is fixedly connected to the stop block (13). A return spring (17) is also sleeved on the outer periphery of the support rod (16), and the two ends of the return spring (17) are fixedly connected to the support block (15) and the stop block (13) respectively; The end of the support rod (16) far from the stop block (13) is also fixedly provided with a support plate (18).

2. The motor with an air flow heat dissipation structure according to claim 1, wherein: Bearings (401) are fixedly arranged on the outer peripheries of the two ends of the inner housing (4) at the positions of the first rotating shaft (601) and the second rotating shaft (602). The first rotating shaft (601) and the second rotating shaft (602) are respectively slidably connected to the bearings (401).

3. The motor with an air flow heat dissipation structure according to claim 1, characterized in that: An air inlet (301) is provided directly above the heat dissipation fan (8) at the top of the rotating housing (3), and a filter screen (302) is fixedly arranged in the air inlet (301).

4. The motor with an air flow heat dissipation structure according to claim 3, characterized in that: The air inlet (301) is circularly arranged.

5. The motor with an air flow heat dissipation structure according to claim 1, characterized in that: Heat dissipation fins (9) are fixedly arranged at equal intervals on the outer periphery of the stator (5) inside the inner housing (4), and the two ends of the heat dissipation fins (9) are respectively in contact with the inner housing (4) and the stator (5).

6. The motor with an air flow heat dissipation structure according to claim 1, characterized in that: Flow guide plates (14) are evenly fixedly arranged on the inner wall of the rotating housing (3).

7. The motor with an air-flow heat dissipation structure according to claim 1, characterized in that: At the bottom of the heat dissipation fan (8), the second rotating shaft (602) is fixedly sleeved with a mounting block (10). Support columns (11) are respectively fixedly arranged on both sides of the mounting block (10). The bottoms of the support columns (11) are fixedly connected to the rotating housing (3).

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