Motor stator and rotor assembly with twenty-maximum torque
By using a stator and rotor assembly with a maximum torque of 20, the problems of easily broken tile-shaped magnetic tiles and low arrangement density are solved, achieving high-efficiency energy conversion, low noise and stable operation, and meeting high power requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGZHOU MILU ELECTRIC TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-28
AI Technical Summary
Existing permanent magnet stator and rotor components are prone to breakage during transportation and assembly due to their tile-shaped magnetic tiles. Their low arrangement density results in poor magnetic pole superposition, affecting energy efficiency and noise performance.
The rotor features a 20-maximum torque design with radially distributed mounting holes for the magnetic tiles. The magnetic tiles are cuboids with adjacent magnetic poles of opposite polarity. The stator has T-shaped feet and fixing grooves, while the rotor has through-holes for the magnetic tiles. The concave holes connect to the mounting holes for the magnetic tiles, increasing density and stability.
It effectively reduces magnetic tile impact, improves magnetic tile stacking effect, enhances energy conversion efficiency, reduces energy consumption, increases torque, reduces noise, improves equipment stability and response characteristics, and optimizes heat dissipation performance.
Smart Images

Figure CN224177979U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor stator and rotor technology, specifically relating to a stator and rotor assembly for a 20-maximum torque motor. Background Technology
[0002] The stator and rotor are the core components of an electric motor, working together to convert electrical energy into mechanical energy. Permanent magnet stators and rotors are common types of electric motors. Permanent magnet motor rotors improve energy efficiency and quiet operation in home appliances such as air conditioner compressors and washing machines. For example, symmetrical permanent magnet rotors, through optimized air bearing structures, reduce energy consumption and are suitable for the energy-saving needs of high-end home appliances.
[0003] In the home appliance industry, commonly used permanent magnet stator and rotor assemblies employ curved, tile-shaped magnetic tiles, with several of these tiles arranged in a circular pattern with the curved surfaces facing inwards. This arrangement exposes the outer curved surfaces of the tile-shaped magnetic tiles, making them prone to breakage during transportation or assembly. Furthermore, because the positive and negative poles of the tile-shaped magnetic tiles are located on opposite sides of the curved surface, the regular arrangement results in a relatively low density and poor superposition of the positive and negative poles.
[0004] In order to overcome the structural defects of the above-mentioned permanent magnet stator and rotor assembly, this utility model aims to provide a stator and rotor assembly with a maximum torque of 200 rpm. Utility Model Content
[0005] The purpose of this invention is to provide a stator and rotor assembly for a 20-maximum torque motor to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A rotor-stator assembly for a 20-maximum torque motor, characterized in that it comprises a rotor and a stator;
[0008] The rotor has a shaft through hole at its center and twenty magnetic tile mounting holes at its center, with magnetic tiles inside the mounting holes. The twenty magnetic tile mounting holes are evenly distributed radially around the center of the rotor. The rotor also has twenty magnetic tile through holes on its sidewalls, each corresponding to a magnetic tile mounting hole, with the through holes opening into the sidewalls of the mounting holes. The magnetic tiles are cuboid, with adjacent magnetic tiles having opposite magnetic poles. The stator includes a stator ring, with twenty T-shaped feet on the inner side of the stator ring.
[0009] Preferably, the rotor is provided with twenty concave holes; the twenty concave holes are evenly distributed in a ring array with the center of the rotor as the axis; the concave holes are located inside the magnetic tile mounting holes, and the outer side of the concave holes is connected to the inner side of the magnetic tile mounting holes.
[0010] Preferably, the rotor and the stator are provided with positioning grooves on their upper and lower surfaces.
[0011] Preferably, the outer wall of the stator is provided with a fixing groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] (1) The present invention provides a stator and rotor assembly for a 20-maximum torque motor, wherein the 20 magnetic tile mounting holes are evenly distributed radially with the center of the rotor as the axis; when the magnetic tiles are installed into the magnetic tile mounting holes, only the magnetic tiles are perforated at the side wall of the rotor, which can effectively reduce the impact of the magnetic tiles during the installation process.
[0014] (2) The present invention provides a stator and rotor assembly for a 20-maximum torque motor, in which 20 magnets are installed in 20 magnet mounting holes in a one-to-one correspondence. Since the magnet mounting holes are arranged radially, the density is greatly increased. The magnetic poles of two adjacent magnets are different, and the magnets can be effectively superimposed. Due to the more reasonable magnetic field distribution, the energy conversion efficiency of the motor is higher, and energy consumption can be effectively reduced and energy costs can be saved during operation.
[0015] (3) The stator and rotor assembly of the twenty-torque motor provided by this utility model has a large number of stages and a large torque, which enables the motor to generate a large torque during operation, and can easily drive large load equipment to meet high power requirements.
[0016] (4) The present invention provides a stator and rotor assembly for a 20-pole motor. The 20-pole design makes the magnetic field distribution of the motor more uniform, reduces vibration and noise during operation, and makes the operation more stable and smooth, thus improving the stability and reliability of the equipment.
[0017] (5) The present invention provides a stator and rotor assembly for a 20-pole motor. The brushless motor itself has good response characteristics, and the 20-pole structure further optimizes this performance. It can quickly respond to changes in control signals and accurately control the speed and position of the motor. It can achieve smooth speed regulation over a wide range and meet the precise control requirements of motor speed in different application scenarios.
[0018] (6) The present invention provides a stator and rotor assembly for a 20-pole brushless motor. The structural design of a 20-pole brushless motor is generally conducive to heat dissipation, and can maintain good performance during long-term operation, reducing efficiency loss and component damage caused by overheating. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the stator structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the rotor structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the magnetic tile of this utility model;
[0023] In the diagram: 1. Stator; 2. Rotor; 3. Stator ring; 4. T-shaped foot; 5. Fixing groove; 6. Shaft through hole; 7. Magnet mounting hole; 8. Magnet; 9. Magnet through hole; 10. Concave hole; 11. Positioning groove. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] A 20-pole high-torque motor stator-rotor assembly includes a stator 1 and a rotor 2. The stator 1 includes a stator ring 3 with twenty T-shaped feet 4 on its inner side. For easy positioning and installation of the stator 1, several evenly distributed fixing grooves 5 are provided on the outer side wall of the stator 1. A shaft through-hole 6 is provided at the center of the rotor 2 for mounting a shaft. Twenty magnetic tile mounting holes 7 are provided on the rotor 2, each with a rectangular cross-section. These twenty magnetic tile mounting holes 7 are radially and evenly distributed around the center of the rotor 2. Magnetic tiles 8, which are cuboid in shape, are inserted into the mounting holes 7, and these twenty magnetic tiles 8 are radially and evenly distributed inside the rotor 2. The 20-pole design results in a more uniform magnetic field distribution, less vibration and noise during operation, smoother and more stable operation, and improved equipment stability and reliability. The adjacent magnetic tiles 8 have opposite magnetic poles, allowing for effective superposition of the twenty magnetic tiles 8. Due to the more rational magnetic field distribution, the motor has a higher energy conversion efficiency, effectively reducing energy consumption and saving energy costs during operation; at the same time, it enables the motor to generate greater torque during operation. Twenty magnetic tile perforations 9 are provided on the outer wall of the rotor 2, each corresponding to a magnetic tile mounting hole 7. The openings of the magnetic tile perforations 9 are located on the side wall of the magnetic tile mounting hole 7. When the magnetic tile 8 is installed into the magnetic tile mounting hole 7, the presence of only magnetic tile perforations 9 on the side wall of the rotor 2 effectively reduces the risk of impact during installation. Twenty concave holes 10 are provided on the rotor 2. These twenty concave holes 10 are evenly distributed in a circular array around the center of the rotor 2. The concave holes 2 are located inside the magnetic tile mounting holes 9, and their outer sides communicate with the inner sides of the magnetic tile mounting holes 9. To facilitate the subsequent installation of insulating plastic parts and other components, positioning grooves 11 are provided on the upper and lower surfaces of the rotor 2 and the stator 1.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stator and rotor assembly for a 20-maximum torque motor, characterized in that: Includes rotor and stator; The rotor has a shaft through hole at its center and twenty magnetic tile mounting holes at its center, with magnetic tiles inside the mounting holes. These twenty mounting holes are evenly distributed radially around the rotor's center. The rotor also has twenty magnetic tile through holes on its sidewalls, each corresponding to a mounting hole, with the through holes opening into the sidewall of the mounting hole. The magnetic tiles are cuboid, with adjacent tiles having opposite magnetic poles. The stator includes a stator ring, and the inner side of the stator ring is provided with twenty T-shaped feet.
2. The stator and rotor assembly of a 20-maximum torque motor according to claim 1, characterized in that: The rotor is provided with twenty concave holes; the twenty concave holes are evenly distributed in a ring array with the center of the rotor as the axis; the concave holes are located inside the magnetic tile mounting holes, and the outer side of the concave holes is connected to the inner side of the magnetic tile mounting holes.
3. The stator and rotor assembly of a 20-maximum torque motor according to claim 1, characterized in that: The rotor has positioning grooves on its upper and lower surfaces, and the stator has positioning grooves on its upper and lower surfaces.
4. The stator and rotor assembly of a 20-maximum torque motor according to claim 1, characterized in that: The outer wall of the stator is provided with a fixing groove.