Permanent magnet motor structure
By introducing end caps, fixing components and heat dissipation components into the permanent magnet motor, the stator rotor assembly problem is solved, and a permanent magnet motor structure with convenient assembly and efficient heat dissipation is achieved.
Patent Information
- Application Number
- CN202520934185.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2035-05-13
AI Technical Summary
In traditional permanent magnet motor structures, the stator rotor is difficult to assemble, especially in large and medium-sized motors, and special equipment is required, and it is difficult to install on site.
A permanent magnet motor structure including an end cover, a motor shaft, a fixing assembly and a heat dissipation assembly is designed. The precise positioning and fixing of the stator rotor is achieved through a guide rod and a locking nut, and the heat dissipation is performed using the rotating shaft and the rotating blade.
It realizes convenient assembly and disassembly of the stator rotor, avoids adsorption of the stator rotor, and improves the assembly efficiency and heat dissipation effect of the motor.
Smart Images
Figure CN223079845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of permanent magnet motors, and specifically to a permanent magnet motor structure. Background Art
[0002] A permanent magnet motor is a motor that uses permanent magnets to generate a magnetic field, different from traditional motors that rely on excitation windings to generate a magnetic field. By using high-performance rare earth permanent magnet materials, permanent magnet motors have higher efficiency, power density, and better dynamic performance.
[0003] In the traditional structure of permanent magnet motors, when the stator and rotor are assembled together, the stator and rotor are easily adsorbed to each other, making it difficult to assemble successfully. Especially when assembling large and medium-sized motors, special equipment or tooling must be used. When the motor is shipped to the customer's site, due to the influence of the magnetic steel suction force, the user cannot extract the rotor, and thus cannot install or maintain the motor on-site. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a permanent magnet motor structure to solve the problem of difficult assembly in the background art.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A permanent magnet motor structure includes:
[0007] A motor body;
[0008] An end cover, which is movably abutted against one side of the motor body;
[0009] It further includes a motor shaft, which is arranged inside the motor body, and one end of the motor shaft is rotatably connected to the middle of the end cover. An output shaft is provided at the end of the motor shaft passing through the end cover, and a rotor module is provided on the outer surface of the motor shaft.
[0010] A fixing component for fixing the end cover is provided on the end cover, and a heat dissipation component for dissipating heat inside the motor body is provided inside the motor body at the end away from the end cover.
[0011] Based on the above technical solutions, the utility model further provides the following optional technical solutions:
[0012] In an optional solution: The fixing component includes a plurality of guide rods, and a plurality of the guide rods are all arranged at one end of the end cover close to the motor body. Positioning holes are respectively opened around the inside of the motor body, and a plurality of the guide rods respectively pass through a plurality of the positioning holes. Threads are provided at one ends of the plurality of the guide rods away from the end cover, and locking nuts are respectively threadedly connected to the threaded ends of the plurality of the guide rods.
[0013] In an alternative embodiment: The heat dissipation component includes a support frame disposed inside the motor body at the end away from the end cover. A rotating shaft is rotatably connected inside the support frame. A plurality of rotating blades are provided on the rotating shaft. A limiting hole is formed inside one end of the output shaft close to the rotating shaft. A hexagonal column is provided at one end of the rotating shaft close to the limiting hole, and the hexagonal column is slidably connected inside the limiting hole.
[0014] In an alternative embodiment: A magnetic steel is installed on the rotor module.
[0015] In an alternative embodiment: A stator module is installed inside the motor body.
[0016] In an alternative embodiment: The lock nut is hexagonal.
[0017] In an alternative embodiment: The clearance between the positioning hole and the guide rod is smaller than the air gap between the stator module and the rotor module.
[0018] In an alternative embodiment: The limiting hole and the hexagonal column are adapted in shape and specifications.
[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0020] By means of the fixing component provided on the end cover, the present utility model achieves the effect of positioning the end cover and the rotor module, and can also prevent adsorption between the stator module and the rotor module, facilitating the disassembly and assembly of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a schematic structural view of the present utility model.
[0022] Figure 2 is an internal structural view of the present utility model.
[0023] Figure 3 is a schematic structural view of the heat dissipation component of the present utility model.
[0024] Figure 4 is a sectional view of the rotating shaft structure of the present utility model.
[0025] Figure 5 is a rear view of the structure of the present utility model.
[0026] Wherein: 100, motor body; 200, end cover; 301, motor shaft; 302, output shaft; 303, rotor module; 401, guide rod; 402, positioning hole; 403, lock nut; 501, support frame; 502, rotating shaft; 503, rotating blade; 504, limiting hole; 505, hexagonal column; 600, magnetic steel. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] In order to make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0028] In one embodiment, as Figures 1 - 5 shown, a permanent magnet motor structure includes: a motor body 100, an end cover 200, and a motor shaft 301. The end cover 200 is movably abutted against one side of the motor body 100. The motor shaft 301 is disposed inside the motor body 100, and one end of the motor shaft 301 is rotatably connected to the middle of the end cover 200. An output shaft 302 is provided at one end of the motor shaft 301 passing through the end cover 200. A rotor module 303 is provided on the outer surface of the motor shaft 301. A fixing component for fixing the end cover 200 is provided on the end cover 200. A heat dissipation component for dissipating heat inside the motor body 100 is provided inside the motor body 100 at the end away from the end cover 200. The rotor module 303 drives the motor shaft 301 to rotate, thereby driving the output shaft 302 to output.
[0029] In one embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the fixing component includes a plurality of guide rods 401. The plurality of guide rods 401 are all disposed on the end of the end cover 200 close to the motor body 100. Positioning holes 402 are respectively formed in the four circumferences inside the motor body 100, and the plurality of guide rods 401 are respectively inserted into the plurality of positioning holes 402. Threads are provided on the ends of the plurality of guide rods 401 away from the end cover 200. Locking nuts 403 are threadedly connected to the threaded ends of the plurality of guide rods 401. By inserting the guide rods 401 into the positioning holes 402, then pushing the end cover 200 to drive the guide rods 401 to move inside the positioning holes 402, thereby driving the rotor module 303 to move, so that it reaches inside the motor body 100. Subsequently, the locking nuts 403 are rotated to fix the guide rods 401, thereby completing the fixing of the end cover 200.
[0030] In one embodiment, as Figure 3 , Figure 4 and Figure 5As shown, the heat dissipation component includes a support frame 501, which is arranged inside the motor body 100 at the end far from the end cover 200. A rotating shaft 502 is rotatably connected inside the support frame 501. A plurality of rotating blades 503 are arranged on the rotating shaft 502. A limiting hole 504 is opened inside one end of the output shaft 302 close to the rotating shaft 502. A hexagonal column 505 is arranged at one end of the rotating shaft 502 close to the limiting hole 504, and the hexagonal column 505 is slidably connected inside the limiting hole 504. By the rotation of the output shaft 302, the hexagonal column 505 is driven to rotate, thereby driving the rotating shaft 502 to rotate, and then driving a plurality of rotating blades 503 to rotate, so as to blow air inside the motor body 100 to complete heat dissipation.
[0031] In one embodiment, as Figure 2 shown, a magnet 600 is installed on the rotor module 303 to provide excitation for the motor body 100.
[0032] In one embodiment, as Figure 1 shown, a stator module is installed inside the motor body 100 to cooperate with the rotor module 303, so as to realize the operation of the motor body 100.
[0033] In one embodiment, as Figure 3 shown, the lock nut 403 is hexagonal, which is convenient for rotating the lock nut 403.
[0034] In one embodiment, as Figure 1 shown, the clearance between the positioning hole 402 and the guide rod 401 is less than 1 / 2 of the air gap between the stator module and the rotor module 303, ensuring the air gap accuracy between the stator module and the rotor module 303 and the stability of assembly alignment during the assembly and operation of the motor.
[0035] In one embodiment, as Figure 4 and Figure 5 shown, the limiting hole 504 and the hexagonal column 505 are adapted in shape and specification to prevent the hexagonal column 505 from sliding.
[0036] The above embodiment discloses a permanent magnet motor structure. When assembly is required, a guide rod 401 can be inserted into the positioning hole 402. Subsequently, the end cover 200 is pushed to drive the guide rod 401 to move inside the positioning hole 402, thereby driving the rotor module 303 to move, so that it reaches the inside of the motor body 100. Subsequently, the lock nut 403 is rotated to fix the guide rod 401, thereby completing the fixation of the end cover 200. When the motor body 100 operates, the rotation of the output shaft 302 can drive the hexagonal column 505 to rotate, thereby driving the rotating shaft 502 to rotate, and then driving a plurality of rotating blades 503 to rotate, so as to blow air inside the motor body 100 to complete heat dissipation.
[0037] The above is only the specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A permanent magnet motor structure, comprising: A motor body (100); An end cover (200), the end cover (200) being movably abutted against one side of the motor body (100); Characterized in that it further includes a motor shaft (301), the motor shaft (301) is arranged inside the motor body (100), and one end of the motor shaft (301) is rotatably connected to the middle of the end cover (200), and an output shaft (302) is arranged at the end of the motor shaft (301) passing through the end cover (200), and a rotor module (303) is arranged on the outer surface of the motor shaft (301); A fixing component for fixing the end cover (200) is arranged on the end cover (200), and a heat dissipation component for dissipating heat inside the motor body (100) is arranged inside the motor body (100) at the end away from the end cover (200).
2. The structure of a permanent magnet motor according to claim 1, characterized in that The fixing component includes a plurality of guide rods (401), and the plurality of guide rods (401) are all arranged on the end of the end cover (200) close to the motor body (100). Positioning holes (402) are respectively opened around the inside of the motor body (100), and the plurality of guide rods (401) are respectively inserted into the plurality of positioning holes (402). Threads are arranged on the ends of the plurality of guide rods (401) away from the end cover (200), and locking nuts (403) are threadedly connected to the threaded ends of the plurality of guide rods (401).
3. A permanent magnet motor structure according to claim 1, wherein, The heat dissipation component includes a support frame (501), the support frame (501) is arranged inside the motor body (100) at the end away from the end cover (200), a rotating shaft (502) is rotatably connected inside the support frame (501), a plurality of rotating blades (503) are arranged on the rotating shaft (502), a limiting hole (504) is opened inside the end of the output shaft (302) close to the rotating shaft (502), and a hexagonal column (505) is arranged at the end of the rotating shaft (502) close to the limiting hole (504), and the hexagonal column (505) is slidably connected inside the limiting hole (504).
4. A permanent magnet motor structure according to claim 1, characterized in that A permanent magnet (600) is installed on the rotor module (303).
5. A permanent magnet motor structure according to claim 1, characterized in that, A stator module is installed inside the motor body (100).
6. A permanent magnet motor structure according to claim 2, wherein, The locking nut (403) is hexagonal.
7. A permanent magnet motor structure according to claim 2, characterized in that, The fitting clearance between the positioning hole (402) and the guide rod (401) is less than 1 / 2 of the air gap between the stator module and the rotor module (303).
8. A permanent magnet motor structure according to claim 3, characterized in that, The shape and specification of the limiting hole (504) are adapted to those of the hexagonal column (505).