Rotor for high-strength permanent magnet synchronous motor
The high-strength permanent magnet synchronous motor rotor, featuring carbon structural steel interference rings and aluminum alloy baffles, addresses the weakness of existing rotors by enhancing structural integrity for improved stability and durability.
Patent Information
- Application Number
- CN202420970942.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Existing motor rotors in new energy vehicles lack sufficient strength and stability, particularly under high-speed operation and heavy loads, affecting overall mechanical system performance.
A high-strength permanent magnet synchronous motor rotor design incorporating a rotor core with embedded permanent magnets, interference rings made of carbon structural steel, aluminum alloy rotor baffles, and carbon structural steel bushings to enhance structural integrity.
The design significantly improves rotor strength and durability, ensuring stability under high-speed and heavy load conditions, thereby enhancing the mechanical system's performance.
Smart Images
Figure CN222215317U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor components, in particular to a rotor for a high-strength permanent magnet synchronous motor. Background Art
[0002] The rotor is a rotating body supported by bearings. It is the main rotating part in many power machines and working machines, such as motors, generators, gas turbines and turbo compressors. The rotor plays an important role in converting electrical energy, thermal energy, etc. into mechanical energy or mechanical energy into electrical energy. However, the motor rotors used in existing new energy vehicles are generally not strong enough. Utility Model Content
[0003] The utility model aims to provide a high-strength permanent magnet synchronous motor rotor, which greatly improves the strength of the rotor and shows better stability and durability when rotating at high speed or bearing heavy loads, which helps to improve the overall performance of the mechanical system.
[0004] According to the utility model, a rotor for a high-strength permanent magnet synchronous motor is provided, comprising a rotor core and a motor shaft keyed to the rotor core, the rotor core is provided with an embedding hole, a permanent magnet steel is embedded in the embedding hole, an interference ring is installed on the rotor core, and the interference ring is made of carbon structural steel.
[0005] Furthermore, rotor baffles are installed on both sides of the rotor core.
[0006] Furthermore, the rotor baffle is made of aluminum alloy.
[0007] Furthermore, the rotor baffle and the interference ring are provided with a through hole for the motor shaft to pass through.
[0008] Furthermore, a bushing is installed between the rotor baffle and the rotor core, and the motor shaft passes through the bushing.
[0009] Furthermore, the bushing is made of carbon structural steel.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. The rotor core and magnetic steel are compressed by using interference rings made of carbon structural steel to improve the strength of the overall rotor;
[0012] 2. The rotor baffle made of aluminum alloy is used to compress the rotor core and magnetic steel to improve the strength of the entire rotor. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1The rotor for the high-strength permanent magnet synchronous motor described in the embodiment of the utility model
[0014] In the figure, 1-rotor core; 2-motor shaft; 3-embedded hole; 4-permanent magnet; 5-interference ring; 6-rotor baffle; 7-bushing. DETAILED DESCRIPTION
[0015] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.
[0016] Combination Figure 1 , shows a rotor for a high-strength permanent magnet synchronous motor, including a rotor core 1 and a motor shaft 2 keyed to the rotor core 1, an embedding hole 3 is opened on the rotor core 1, a permanent magnet steel 4 is embedded in the embedding hole 3, an interference ring 5 is installed on the rotor core 1, and the interference ring 5 is made of carbon structural steel.
[0017] In actual use, the interference ring 5 made of carbon structural steel is used to compress the rotor core 1 and the magnetic steel to improve the strength of the entire rotor.
[0018] Rotor baffles 6 are installed on both sides of the rotor core 1 .
[0019] The rotor baffle 6 is made of aluminum alloy.
[0020] The rotor baffle 6 made of aluminum alloy is used to compress the rotor core 1 and the magnetic steel to improve the strength of the entire rotor.
[0021] The rotor baffle 6 and the interference ring 5 are provided with a through hole through which the motor shaft 2 passes.
[0022] A bushing 7 is installed between the rotor baffle 6 and the rotor core 1 , and the motor shaft 2 passes through the bushing 7 .
[0023] The bushing 7 is made of carbon structural steel.
[0024] The beneficial effects of the utility model are:
[0025] 1. The rotor core 1 and the magnetic steel are compressed by using an interference ring 5 made of carbon structural steel to improve the strength of the entire rotor;
[0026] 2. The rotor baffle 6 made of aluminum alloy is used to compress the rotor core 1 and the magnetic steel to improve the strength of the entire rotor.
[0027] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. A rotor for a high-strength permanent magnet synchronous motor, characterized in that: It comprises a rotor core and a motor shaft key-connected with the rotor core. The rotor core is provided with an embedding hole, in which a permanent magnet is embedded. An interference ring is installed on the rotor core, and the interference ring is made of carbon structural steel.
2. The high-strength permanent magnet synchronous motor rotor according to claim 1, characterized in that: Rotor baffles are installed on both sides of the rotor core.
3. The high-strength permanent magnet synchronous motor rotor according to claim 2, characterized in that: The rotor baffle is made of aluminum alloy.
4. The high-strength permanent magnet synchronous motor rotor according to claim 2, characterized in that: The rotor baffle and the interference ring are provided with a through hole for the motor shaft to pass through.
5. The high-strength permanent magnet synchronous motor rotor according to claim 4, characterized in that: A bushing is installed between the rotor baffle and the rotor core, and the motor shaft passes through the bushing.
6. The high-strength permanent magnet synchronous motor rotor according to claim 5, characterized in that: The bushing is made of carbon structural steel.