Permanent magnet motor rotor
By designing grooves and stable block structures on the permanent magnet motor rotor, combining threaded rods and gear systems, adjusting the angle of the connecting rods to fix the silicone pads and coils, the problem of copper wire being offset due to centrifugal force when rotating at high speed is solved, and the stable operation and efficient performance of the motor are achieved.
Patent Information
- Application Number
- CN202421963786.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-08-14
AI Technical Summary
When the rotor of the existing permanent magnet motor rotates at high speed, the copper wire is offset or separated due to the release force, resulting in problems such as imbalance, vibration, bearing wear, increased noise, reduced electromagnetic performance and reduced output power.
A permanent magnet motor rotor is designed, adopting grooves and stable block structures. Through mechanical structures such as threaded rods, rotating gears and moving racks, the angle of the connecting rod is adjusted, and the silicone pads and coils are fixed using triangular stability to prevent deviation. At the same time, an insulating layer, a fatigue-resistant layer and a heat-resistant layer are provided to improve the overall performance of the rotor.
It effectively prevents the copper wire from deviating due to centrifugal force when rotating at high speed, ensures the service life and stable operation of the motor, reduces noise and bearing wear, and improves electromagnetic performance and output power.
Smart Images
Figure CN222940594U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor rotors, and particularly relates to a permanent magnet motor rotor. Background Technique
[0002] The rotor is an important component in a permanent magnet motor. The rotor can rotate under the action of a magnetic field by cooperating with the stator and other parts.
[0003] According to the observation of the prior art, when the rotor is installed, copper wires need to be wound on the surface. The copper wires are installed in a winding manner during installation. However, when the rotor rotates at a high speed, a strong release force will pull the copper wires, causing the copper wires to shift. In severe cases, the copper wires can be separated from the rotor. The shift of the copper wires will first change the uneven mass distribution of the rotor, resulting in imbalance. The imbalance will cause vibration, increase the wear and noise of the bearings, shorten the service life of the motor, and reduce the running stability and efficiency. Secondly, the electromagnetic performance will decline. The shifted copper wires will change the geometric shape and electromagnetic field distribution of the rotor winding, resulting in a decline in the electromagnetic performance of the motor, leading to a reduction in output power, a decrease in efficiency, and an increase in current fluctuation, affecting the overall performance of the motor. Content of the Utility Model
[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] For this reason, the technical solution adopted by the utility model is as follows: a permanent magnet motor rotor, including a rotor body, wherein a groove is formed on the surface of the rotor body, a stabilizing block is fixedly connected to the side wall of the rotor body, the stabilizing block is hollow, a threaded rod is rotatably connected to the inner wall of the stabilizing block, a rotating gear is fixedly connected to the middle position of the threaded rod, moving racks are meshed and connected to both sides of the rotating gear, a sliding block is fixedly connected to one end of the moving rack, a moving block is fixedly connected to one end of the sliding block, connecting rods are rotatably connected to the side wall of the moving block symmetrically, a threaded block is rotatably connected to one end of the connecting rod, and the center position of one side of the threaded block is rotatably connected to one end of the threaded rod in a penetrating manner;
[0006] An insulating layer is pressed on the surface of the rotor body, an anti-fatigue layer is pressed on one side of the insulating layer, and a heat-resistant layer is pressed on one side of the anti-fatigue layer.
[0007] Preferably, the stabilizing block is fixedly connected to the surface of the rotor body in a ring shape, the number of the stabilizing blocks is eight, and a rotating shaft is fixedly connected to the center position of the side wall of the rotor body.
[0008] Preferably, the number of the moving blocks is two, a tray is fixedly connected to one side of the moving block, a silica gel pad is fixedly connected to one side of the tray, and a sleeve is slidably connected to one end of the sliding block in a penetrating manner.
[0009] Preferably, the number of the moving racks is two. One end of each moving rack is fixedly connected with a spring, and the number of the springs corresponds to the number of the moving racks.
[0010] Preferably, the insulating layer is made of polyester resin.
[0011] Preferably, the anti-fatigue layer is made of titanium alloy.
[0012] Preferably, the heat-resistant layer is an alumina coating.
[0013] By adopting the above technical solutions, the beneficial effects achieved by the present utility model are as follows:
[0014] 1. In the present utility model, a connecting rod, a moving block and a threaded rod are provided. When winding a coil around the rotor groove, the silica gel pad will clamp and limit the coil. As the coil increases, the silica gel pad will drive the tray to move. When moving, it will drive the rack on the moving block to rotate the fixed gear, and then drive the threaded block to move through the threaded rod, thereby adjusting the angle of the connecting rod, and fixing it through the stability of the triangle, so that the silica gel pad can perfectly fit the coil. When the rotor body rotates at a high speed, the coil will not shift due to centrifugal force, thereby ensuring the service life of the motor and ensuring that the motor can work stably.
[0015] 2. In the present utility model, a protective layer is provided. By providing an insulating layer, it can protect the rotor body from short circuit and electromagnetic interference. By providing an anti-fatigue layer, it can ensure that the rotor body has the ability to resist deformation, reduce the installation of accessories at the same time, reduce the weight of the peripheral part, and achieve the effect of reducing the influence of centrifugal force. By providing a heat-resistant layer, the rotor can resist high temperature, and thus will not reduce the overall strength of the rotor body due to high temperature and is not likely to deform. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional view of the overall structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the internal structure of the stabilizing block of the present utility model;
[0018] Figure 3 is a partial three-dimensional sectional view of the rotor body of the present utility model.
[0019] Reference numerals: 1, rotor body; 2, stabilizing block; 3, threaded rod; 4, rotating gear; 5, moving rack; 6, threaded block; 7, connecting rod; 8, sliding block; 9, moving block; 10, tray; 11, silicone pad; 12, sleeve; 13, spring; 14, rotating shaft; 15, insulating layer; 16, anti-fatigue layer; 17, heat-resistant layer. Detailed implementation mode
[0020] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific implementation mode and with reference to the attached drawings. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.
[0021] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present utility model.
[0022] The following describes a permanent magnet motor rotor provided by some embodiments of the present utility model with reference to the attached drawings.
[0023] Combined Figures 1-3 As shown in the figure, a permanent magnet motor rotor provided by the present utility model includes a rotor body 1. A groove is provided on the surface of the rotor body 1. A stabilizing block 2 is fixedly connected to the side wall of the rotor body 1. The stabilizing block 2 is hollow. A threaded rod 3 is rotatably connected to the inner wall of the stabilizing block 2. A rotating gear 4 is fixedly connected to the middle position of the threaded rod 3. Moving racks 5 are meshed and connected to both sides of the rotating gear 4. One end of the moving rack 5 is fixedly connected to a sliding block 8. One end of the sliding block 8 is fixedly connected to a moving block 9. Connecting rods 7 are rotatably connected to the side wall of the moving block 9 symmetrically. One end of the connecting rod 7 is rotatably connected to a threaded block 6. The central position on one side of the threaded block 6 is rotatably connected to one end of the threaded rod 3 in a penetrating manner;
[0024] The stabilizing block 2 is fixedly connected to the surface of the rotor body 1 in a ring shape. The number of the stabilizing blocks 2 is eight. A rotating shaft 14 is fixedly connected to the central position of the side wall of the rotor body 1. The number of the moving blocks 9 is two. A tray 10 is fixedly connected to one side of the moving block 9. A silicone pad 11 is fixedly connected to one side of the tray 10. One end of the sliding block 8 is slidably connected to a sleeve 12 in a penetrating manner. The number of the moving racks 5 is two. A spring 13 is fixedly connected to one end of the moving rack 5. The number of the springs 13 corresponds to the number of the moving racks 5.
[0025] First Embodiment: Through the winding of the copper wire coil, when the thickness increases, it will squeeze the silicone pad 11 to move. The silicone pad 11 drives the moving block 9 on the tray 10 to move. When the moving block 9 moves, it can push the moving rack 5 to move. When the moving rack 5 moves, it can drive the rotating gear 4 to rotate. When the rotating gear 4 rotates, it can drive the threaded rod 3 to rotate. When the threaded rod 3 rotates, it can drive the threaded block 6 to move. The movement of the threaded block 6 will drive the connecting rod 7 to move and adjust the angle with the moving block 9, which can play a supporting role and at the same time utilize the stability of the triangle to be stable. Furthermore, it can make the silicone pad 11 and the copper wire coil fit tightly, thus ensuring that the coil will not shift under the action of centrifugal force, ensuring the stability of the coil and guaranteeing the normal and stable operation of the motor, and at the same time ensuring the service life of the motor.
[0026] An insulating layer 15 is pressed on the surface of the rotor body 1. An anti-fatigue layer 16 is pressed on one side of the insulating layer 15. A heat-resistant layer 17 is pressed on one side of the anti-fatigue layer 16. The insulating layer 15 is made of polyester resin, the anti-fatigue layer 16 is made of titanium alloy, and the heat-resistant layer 17 is an alumina coating.
[0027] Second Embodiment: By providing the insulating layer 15, the rotor body 1 will not have a short-circuit problem. The anti-fatigue layer 16 can increase the toughness of the rotor body 1 and reduce the possibility of deformation. The heat-resistant layer 17 can enable the rotor body 1 to resist high temperatures and will not deform due to high temperatures.
[0028] The working principle and usage process of the present utility model: When winding the copper wire on the rotor body 1, the increase in the thickness of the copper wire will push the silicone pad 11 to move. When the silicone pad 11 moves, it can drive the moving block 9 on the tray 10 to move. When the moving block 9 moves, it can drive the moving rack 5 on the sliding block 8 to engage with the rotating gear 4. When the rotating gear 4 rotates, it can drive the threaded rod 3 to rotate. When the threaded rod 3 rotates, it can drive the threaded block 6 to move. When the threaded block 6 moves, it can drive the connecting rod 7 to move. When the coil is removed, the spring 13 can drive the moving rack 5 to reset, and then drive the subsequent parts to reset.
[0029] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A permanent magnet motor rotor, comprising a rotor body (1), characterized in that: The surface of the rotor body (1) is provided with a groove, the side wall of the rotor body (1) is fixedly connected to a stabilizing block (2), the stabilizing block (2) is hollow, the inner wall of the stabilizing block (2) is rotatably connected to a threaded rod (3), the middle position of the threaded rod (3) is fixedly connected to a rotating gear (4), both sides of the rotating gear (4) are meshingly connected to a moving rack (5), one end of the moving rack (5) is fixedly connected to a sliding block (8), one end of the sliding block (8) is fixedly connected to a moving block (9), the side wall of the moving block (9) is symmetrically rotatably connected to a connecting rod (7), one end of the connecting rod (7) is rotatably connected to a threaded block (6), and the center position of one side of the threaded block (6) is rotatably connected to one end of the threaded rod (3) in a through-shaped manner; An insulating layer (15) is pressed onto the surface of the rotor body (1), an anti-fatigue layer (16) is pressed onto one side of the insulating layer (15), and a heat-resistant layer (17) is pressed onto one side of the anti-fatigue layer (16).
2. A permanent magnet motor rotor according to claim 1, characterized in that: The stabilizing block (2) is annularly fixedly connected to the surface of the rotor body (1), the number of the stabilizing blocks (2) is eight, and a rotating shaft (14) is fixedly connected to the center of the side wall of the rotor body (1).
3. A permanent magnet motor rotor according to claim 1, characterized in that: There are two moving blocks (9), one side of the moving block (9) is fixedly connected to a tray (10), one side of the tray (10) is fixedly connected to a silicone pad (11), and one end of the sliding block (8) is slidably connected to a sleeve (12) in a penetrating manner.
4. A permanent magnet motor rotor according to claim 1, characterized in that: The number of the movable racks (5) is two, one end of the movable rack (5) is fixedly connected to a spring (13), and the number of the springs (13) corresponds to the number of the movable racks (5).
5. A permanent magnet motor rotor according to claim 1, characterized in that: The insulating layer (15) is made of polyester resin.
6. A permanent magnet motor rotor according to claim 1, characterized in that: The anti-fatigue layer (16) is made of titanium alloy.
7. A permanent magnet motor rotor according to claim 1, characterized in that: The heat-resistant layer (17) is an aluminum oxide coating.