Motor rotor exhaust structure

Abstract

The utility model relates to the technical field of motor rotor heat dissipation, and discloses a motor rotor exhaust structure, which comprises two shells, a threaded rotary column is arranged in the middle of the shell on the left side in a penetrating manner, an exhaust fan is fixedly connected to the right side of the threaded rotary column, and a plurality of heat dissipation grooves are formed in the exhaust fan and the right side of the shell on the left side at equal intervals. And a driving rod is arranged on the left side of the shell on the left side, a threaded groove is formed in the right side of the inner wall of the driving rod, the outer wall of the threaded rotary column is in threaded connection with the threaded groove, and a reset spring is fixedly connected to the left side of the inner wall of the driving rod. According to the utility model, the rear end of the exhaust fan penetrates through the middle part of the left side shell, and then the exhaust fan is rotated to enable the threaded rotary column to be in threaded connection with the threaded groove, so that the reset spring is extruded and deformed, and under the elastic force action of the reset spring, the clamping and fixing effects are improved, and the condition that the exhaust fan cannot be well replaced and maintained is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor heat dissipation, in particular to a motor rotor exhaust structure. Background Technique

[0002] A motor is a device that converts electrical energy into mechanical energy. It plays an important role in various modern applications. The working principle of the motor is based on the principle of electromagnetism. It mainly consists of a stator and a rotor. The rotor is an important part of the motor. It is the rotating part responsible for converting electrical energy into mechanical energy. The type and design of the rotor in the motor depend on the type and use of the motor. A large amount of heat is generated when the rotor in the motor is in use, and the motor rotor needs to be cooled and dissipated during the use of the motor.

[0003] After retrieval, the Chinese patent publication number is: CN218587034U, which discloses a motor rotor heat dissipation device, including a motor rotor and a heat dissipation structure. The heat dissipation structure includes a rotor fan. A connection structure is arranged in the middle of the rotor fan. The rotor fan is sleeved and fixedly connected to the outside of the drive shaft extending from one end of the motor rotor through the connection structure. The beneficial effects are: by setting the heat dissipation structure, the heat dissipation effect on the motor rotor can be effectively improved. The internal wind circulation effect of the motor can be increased through the rotor fan. The additional auxiliary intake fan can improve the air intake and exhaust effect of the rotor fan, thereby increasing the wind circulation effect and improving the heat dissipation effect, and increasing the service performance. Moreover, the connection structure arranged inside the rotor fan makes the connection between the rotor fan and the drive shaft more convenient and fast, and the tightness after connection is higher, increasing the service stability and preventing the rotor fan from loosening and affecting the air intake and exhaust effect. However, in actual use, this structure uses a fixed rotor fan to dissipate heat from the rotor, so that when the rotor fan is damaged, it cannot be well replaced and repaired, reducing the flexibility of the structure. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a motor rotor exhaust structure, aiming to improve the problem that when the rotor fan is damaged, it cannot be well replaced and repaired, thereby increasing the use cost and reducing the flexibility of the structure.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A motor rotor exhaust structure includes two outer shells. A threaded stud penetrates through the middle of the left outer shell. A exhaust fan is fixedly connected to the right side of the threaded stud. A plurality of heat dissipation grooves are equidistantly arranged inside the exhaust fan and on the right side of the left outer shell. A driving rod is arranged on the left side of the left outer shell. A threaded groove is opened on the right side of the inner wall of the driving rod. The outer wall of the threaded stud is threadedly connected to the threaded groove. A return spring is fixedly connected to the left side of the inner wall of the driving rod. The right end of the return spring is fixedly connected to a clamping column. A limiting groove is opened at the left end of the middle part of the inner wall of the driving rod. The outer wall of the clamping column is slidably connected to the limiting groove. A permanent magnet is arranged on the left side of the driving rod. A fixing mechanism is arranged at the left end of the driving rod.

[0006] Through the above technical solutions: It is convenient for the exhaust fan to be installed by threaded rotation. Thus, when the displacement of the clamping column is restricted by the limiting groove, due to the elastic force of the return spring, the threaded connection between the threaded stud and the threaded groove is more stable, improving the connection effect, achieving the purpose of facilitating the disassembly and replacement of the exhaust fan, and avoiding the increase in usage cost.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a sliding plate. The outer side of the sliding plate is slidably connected to the left end of the inner wall of the driving rod. A square groove is opened at the left end of the inner part of the driving rod. A pressing column is fixedly connected to the right side of the sliding plate. Rotating columns are rotatably connected to the front and rear ends of the left side of the sliding plate. A rotating plate is fixedly connected to the left side of the rotating column. Clamping grooves are opened on the front and rear sides of the inner wall of the permanent magnet. The front and rear ends of the two rotating plates are respectively clamped with the corresponding clamping grooves.

[0009] Through the above technical solutions: When installing, the pressing column is driven, and the two rotating plates rotate and extend out in the square groove, thereby achieving the clamping connection of the permanent magnet and achieving the purpose of facilitating the positioning connection of the permanent magnet.

[0010] As a further description of the above technical solution:

[0011] Rubber sleeves are fixedly connected to the mutually remote sides of the two rotating plates. The external dimensions of the two rubber sleeves respectively match the internal dimensions of the corresponding clamping grooves.

[0012] Through the above technical solutions: The clamping effect of the connection between one end of the rotating plate and the clamping groove is improved.

[0013] As a further description of the above technical solution:

[0014] Mounting plates are fixedly connected to the front and rear parts of the left side of the left outer shell. Mounting grooves are opened at the upper and lower parts of the left side of the mounting plate.

[0015] Through the above technical solution, it is convenient to install and fix the structure.

[0016] As a further description of the above technical solution:

[0017] At the four left corners of the right shell, connecting columns are fixedly connected, and at the four right corners of the left shell, connecting grooves are provided. The plurality of connecting columns are respectively engaged with the corresponding connecting grooves.

[0018] Through the above technical solution, the connection effect of the two shells is improved.

[0019] As a further description of the above technical solution:

[0020] On the left side of the exhaust fan, a plurality of sliding rods are fixedly connected, and on the right side of the left shell, an annular concave ring is fixedly connected. The left sides of the plurality of sliding rods are all slidably connected to the inner wall of the annular concave ring.

[0021] Through the above technical solution, the stability of the exhaust fan during rotation is improved.

[0022] As a further description of the above technical solution:

[0023] On the front and rear parts of the right side of the right shell, rubber pads are fixedly connected, and the two rubber pads are both designed symmetrically.

[0024] Through the above technical solution, the protection effect on the right shell is improved.

[0025] As a further description of the above technical solution:

[0026] The plurality of sliding rods are all arranged and fixed at equal intervals in a ring shape, and arc surfaces are provided on the left sides of the plurality of sliding rods.

[0027] Through the above technical solution, the sliding of the sliding rods is smoother.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, by passing the rear end of the exhaust fan through the middle of the left shell, aligning and engaging the threaded stud with the driving rod of the motor rotor, and then rotating the exhaust fan to thread the threaded stud with the threaded groove, the return spring is compressed and deformed. Under the elastic force of the return spring, the engaging column presses against the threaded stud, improving the effect of snap-fitting and fixing, and avoiding the situation where the exhaust fan cannot be replaced and repaired well.

[0030] 2. In the present utility model, the left side of the clamping column presses against the pressing column, causing the pressing column to drive the sliding plate to displace leftward. Then, when the rotating column rotates, the two rotating plates respectively extend from the front and rear ends on the left side of the driving rod, so as to engage with the clamping grooves inside the permanent magnet, thereby achieving the purpose of positioning the permanent magnet and improving the positioning and fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. 6 is a perspective view of an air exhaust structure of a motor rotor proposed by the present utility model;

[0032] Figure 2 FIG. 10 is a schematic structural view of a threaded stud of an air exhaust structure of a motor rotor proposed by the present utility model;

[0033] Figure 3 FIG. 14 is an exploded view of a fixing mechanism of an air exhaust structure of a motor rotor proposed by the present utility model.

[0034] LEGEND DESCRIPTION:

[0035] 1. Housing; 2. Fixing mechanism; 201. Sliding plate; 202. Pressing column; 203. Rotating column; 204. Rotating plate; 205. Clamping groove; 206. Rubber sleeve; 207. Square groove; 3. Threaded stud; 4. Exhaust fan; 5. Heat dissipation groove; 6. Sliding rod; 7. Annular concave ring; 8. Driving rod; 9. Threaded groove; 10. Return spring; 11. Clamping column; 12. Limiting groove; 13. Permanent magnet; 14. Connecting column; 15. Connecting groove; 16. Mounting plate; 17. Mounting groove; 18. Rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] Refer to Figure 1 . Figure 2 And Figure 3, an embodiment provided by the present utility model: a motor rotor exhaust structure, including two outer casings 1. A threaded stud 3 passes through the middle of the left outer casing 1. A exhaust fan 4 is fixedly connected to the right side of the threaded stud 3. A plurality of heat dissipation grooves 5 are equidistantly opened inside the exhaust fan 4 and on the right side of the left outer casing 1. A driving rod 8 is arranged on the left side of the left outer casing 1. A threaded groove 9 is opened on the right side inner wall of the driving rod 8. The outer wall of the threaded stud 3 is threadedly connected to the threaded groove 9. A return spring 10 is fixedly connected to the left side inner wall of the driving rod 8. A clamping post 11 is fixedly connected to the right end of the return spring 10. A limiting groove 12 is opened at the left end middle of the inner wall of the driving rod 8. The outer wall of the clamping post 11 is slidably connected to the limiting groove 12. A permanent magnet 13 is arranged on the left side of the driving rod 8. A fixing mechanism 2 is arranged at the left end inside the driving rod 8;

[0038] Specifically, by passing the rear end of the exhaust fan 4 through the middle of the left outer casing 1, the threaded stud 3 is accurately aligned and engaged with the inner wall of the driving rod 8 of the motor rotor, so that the middle of the threaded stud 3 can be threadedly connected to the threaded groove 9. When the clamping post 11 is pressed by the left end of the threaded stud 3, the clamping post 11 tightly presses the return spring 10. After the return spring 10 is compressed, it will push the clamping post 11 to move to the right under the action of its elastic force, so as to press the threaded stud 3, further enhancing the clamping and fixing effect between the middle of the threaded stud 3 and the threaded groove 9. This design not only makes the installation process more firm, but also makes the disassembly process extremely simple. Through such a mechanical structure design, it can effectively avoid the problem of difficult maintenance caused by the insecure installation of the exhaust fan, and greatly reduce the high usage cost that may be generated due to frequent replacement of the exhaust fan.

[0039] Referring to Figure 1 and Figure 3 , the fixing mechanism 2 includes a sliding plate 201. The outer side of the sliding plate 201 is slidably connected to the left end inner wall of the driving rod 8. A square groove 207 is opened at the left end inside the driving rod 8. A pressing post 202 is fixedly connected to the right side of the sliding plate 201. The front and rear ends of the left side of the sliding plate 201 are respectively rotatably connected to a rotating column 203. A rotating plate 204 is fixedly connected to the left side of the rotating column 203. Clamping grooves 205 are opened on the front and rear sides of the inner wall of the permanent magnet 13. The front and rear ends of the two rotating plates 204 are respectively clamped with the corresponding clamping grooves 205; The outer sides of the two rotating plates 204 are respectively fixedly connected with rubber sleeves 206. The external dimensions of the two rubber sleeves 206 respectively match the internal dimensions of the corresponding clamping grooves 205;

[0040] Specifically, by squeezing the left side of the engaging post 11, the pressing post 202 is subjected to a leftward pressure. This pressure causes the pressing post 202 to start moving leftward. As the pressing post 202 moves, it drives the sliding plate 201, causing it to also displace leftward. At the same time, it drives the movement of the rotating post 203. Under the action of the sliding plate 201, the rotating post 203 starts to rotate. This rotational movement is further transmitted through the rotating plate 204. Driven by the rotating post 203, the rotating plate 204 starts to move outward to both sides respectively. Their movement causes the front and rear ends of the left side of the driving rod 8 to protrude outward. During this process, one end of the rotating plate 204 is respectively engaged with the engaging groove 205 inside the permanent magnet 13. This engagement not only ensures the stability of the rotating plate 204 but also enables the permanent magnet 13 to be accurately positioned and connected.

[0041] Refer to Figure 1 and Figure 2 , connection posts 14 are fixedly connected to the four left corners of the left side of the right housing 1, connection grooves 15 are provided at the four right corners of the right side of the left housing 1, and multiple connection posts 14 are respectively engaged with the corresponding connection grooves 15; multiple sliding rods 6 are fixedly connected to the left side of the exhaust fan 4, an annular concave ring 7 is fixedly connected to the right side of the left housing 1, and the left sides of multiple sliding rods 6 are all slidably connected to the inner wall of the annular concave ring 7; rubber pads 18 are fixedly connected to the front and rear parts of the right side of the right housing 1, and both rubber pads 18 are designed symmetrically;

[0042] Specifically, by respectively engaging multiple connection posts 14 with the corresponding connection grooves 15, the connection effect between the two housings 1 is improved. By slidably connecting the left sides of multiple sliding rods 6 to the inner wall of the annular concave ring 7, the stability of the exhaust fan 4 during rotation is improved. By means of the rubber pads 18, it is convenient to protect the right housing 1.

[0043] Refer to Figure 2 and Figure 3 , mounting plates 16 are fixedly connected to the front and rear parts of the left side of the left housing 1, and mounting grooves 17 are provided at the upper and lower parts of the left side of the mounting plates 16; multiple sliding rods 6 are fixedly arranged in an annular equidistant manner, and arc surfaces are provided on the left sides of multiple sliding rods 6;

[0044] Specifically, by means of the mounting plates 16 and the mounting grooves 17, it is convenient to install and fix the structure. By fixedly arranging multiple sliding rods 6 in an annular equidistant manner and providing arc surfaces, the smoothness of the sliding of the sliding rods 6 is improved.

[0045] Working principle: When starting the installation, the rear end of the exhaust fan 4 is passed through the middle of the left housing 1, so that the threaded stud 3 is aligned and engaged with the inner wall of the driving rod 8 of the motor rotor. Then, the exhaust fan 4 is rotated to threadedly connect the middle of the threaded stud 3 with the threaded groove 9. The left end of the threaded stud 3 presses the engaging column 11, so that the engaging column 11 squeezes the return spring 10. Under the elastic force of the return spring 10, the engaging column 11 presses against the threaded stud 3 to the right, improving the effect of the middle of the threaded stud 3 being engaged and fixed with the threaded groove 9, and then completing the installation connection. Conversely, the disassembly is completed, avoiding the situation where the exhaust fan 4 cannot be well replaced and repaired, thus reducing the use cost. And by the left side of the engaging column 11 pressing against the pressing column 202, the pressing column 202 is driven to the left to displace the sliding plate 201 to the left. Then, when the sliding plate 201 drives the rotating column 203 and the rotating plate 204, the rotating column 203 causes the two rotating plates 204 to respectively extend from the front and rear ends on the left side of the driving rod 8, so that the mutually separated ends of the rotating plates 204 are respectively engaged with the engaging grooves 205 inside the permanent magnet 13, achieving the purpose of facilitating the positioning connection of the permanent magnet.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A motor rotor exhaust structure, comprising two housings (1), characterized in that: A threaded rotating column (3) is passed through the middle of the left shell (1), and an exhaust fan (4) is fixedly connected to the right side of the threaded rotating column (3). A plurality of heat dissipation grooves (5) are equidistantly provided inside the exhaust fan (4) and the right side of the left shell (1). A driving rod (8) is provided on the left side of the left shell (1). A threaded groove (9) is provided on the right side of the inner wall of the driving rod (8). The outer wall of the threaded rotating column (3) is threadedly connected to the threaded groove (9). A return spring (10) is fixedly connected to the left side of the inner wall of the driving rod (8). A locking column (11) is fixedly connected to the right end of the return spring (10). A limiting groove (12) is provided at the left end of the middle part of the inner wall of the driving rod (8). The outer wall of the locking column (11) is slidably connected to the limiting groove (12). A permanent magnet (13) is provided on the left side of the driving rod (8), and a fixing mechanism (2) is provided at the left end of the inner wall of the driving rod (8).

2. The motor rotor exhaust structure according to claim 1, characterized in that: The fixing mechanism (2) comprises a sliding plate (201), the outer side of the sliding plate (201) is slidably connected to the left end of the inner wall of the driving rod (8), the inner left end of the driving rod (8) is provided with a square groove (207), the right side of the sliding plate (201) is fixedly connected to a pressing column (202), the front and rear ends of the left side of the sliding plate (201) are both rotatably connected to a rotating column (203), the left side of the rotating column (203) is fixedly connected to a rotating plate (204), the front and rear sides of the inner wall of the permanent magnet (13) are both provided with engaging grooves (205), and the front and rear ends of the two rotating plates (204) are respectively engaged with the corresponding engaging grooves (205).

3. The motor rotor exhaust structure according to claim 2, characterized in that: A rubber sleeve (206) is fixedly connected to the two rotating plates (204) at one side away from each other, and the external dimensions of the two rubber sleeves (206) respectively match the internal dimensions of the corresponding engaging grooves (205).

4. The motor rotor exhaust structure according to claim 1, characterized in that: The left front and rear parts of the left side of the housing (1) are fixedly connected to a mounting plate (16), and the left upper and lower parts of the mounting plate (16) are provided with mounting grooves (17).

5. The motor rotor exhaust structure according to claim 1, characterized in that: The four left corners of the right shell (1) are all fixedly connected with connecting posts (14), and the four right corners of the left shell (1) are all provided with connecting grooves (15), and the plurality of connecting posts (14) are respectively engaged with the corresponding connecting grooves (15).

6. The motor rotor exhaust structure according to claim 1, characterized in that: A plurality of sliding rods (6) are fixedly connected to the left side of the exhaust fan (4), an annular concave ring (7) is fixedly connected to the right side of the left shell (1), and the left sides of the plurality of sliding rods (6) are all slidably connected to the inner wall of the annular concave ring (7).

7. The motor rotor exhaust structure according to claim 1, characterized in that: The front and rear parts of the right side of the housing (1) are both fixedly connected with rubber pads (18), and the two rubber pads (18) are both symmetrically designed.

8. The motor rotor exhaust structure according to claim 6, characterized in that: The plurality of sliding rods (6) are all arranged and fixed in an annular manner with equal distances, and the left sides of the plurality of sliding rods (6) are all provided with an arc surface.

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