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Screw-free air magnetic isolation rotor

A screw-free, magnetic isolation technology, applied in the direction of magnetic circuit rotating parts, shielding electromagnetic field, magnetic circuit shape/style/structure, etc., can solve the problems of rotor magnetic flux leakage, poor rotor magnetic isolation effect, etc. Excellent magnetic and magnetic isolation effects, and the effect of preventing axial movement

Pending Publication Date: 2020-10-30
山西维达传动科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of poor magnetic isolation effect of the conventional rotor due to the connection and fixed structure of the rotor, and the defects of the magnetic isolation bridge

Method used

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  • Screw-free air magnetic isolation rotor
  • Screw-free air magnetic isolation rotor
  • Screw-free air magnetic isolation rotor

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Embodiment Construction

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail in combination with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The technical solutions of the present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0022] Such as figure 1 with figure 2 As shown, it is a new type of screw-free air-isolated magnetic rotor structure. Backing ring 9, permanent magnet 10. The rotor bracket 2 is fixedly installed on the rotating shaft 1 through the key 7 to realize circumferential positioning. The rotor bracket 2 is made of high-strength magnetic isolation material, such as Figure 4 As s...

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Abstract

The invention provides a screw-free air magnetic isolation rotor, and relates to the technical field of permanent magnet synchronous motors. The problems that a conventional rotor is unstable in structure due to a connecting and fixing structure, the rotor magnetic isolation effect is poor, rotor magnetic leakage occurs, and a magnetic isolation bridge has defects are solved. The screw-free air magnetic isolation rotor comprises a rotating shaft, a rotor support, magnetic poles and permanent magnets. The rotor support is fixedly installed on the rotating shaft through a key, the magnetic polesare arranged in the rotor support and assembled into a rotor core, the magnetic poles and the rotor support are inserted and fixed through positioning rods, one end of each positioning rod located outside the rotor support is axially positioned through a check ring, and the other end of each positioning rod is clamped at the rotor support. An air gap used for magnetic isolation is arranged between the magnetic poles and the rotor support, and the gap is larger than an air gap between the stator and the rotor. When the structure is used for positioning and fixing the magnetic poles, no screw connection structure is adopted, the phenomenon that the rotor structure is unstable due to structural looseness and the like is avoided, and the magnetism isolation performance is better due to the adoption of the air magnetism isolation structure.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to a screw-free air-isolated magnetic rotor. Background technique [0002] Permanent magnet synchronous motor is composed of stator, rotor and end cover and other components. The stator is basically the same as the ordinary induction motor, and also adopts a lamination structure to reduce the iron loss when the motor is running. The main difference is the structure of the rotor magnetic circuit. If the structure of the rotor magnetic circuit is different, the operating performance, control system, manufacturing process and applicable occasions of the motor are also different. As an important part of the permanent magnet motor, the rotor is of great significance to the operation of the permanent magnet motor. The traditional rotor structure of the permanent magnet synchronous motor adopts the end plate compression stamping structure, which has a complex ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/30H02K11/01H02K21/02
CPCH02K1/27H02K1/30H02K21/02H02K11/01
Inventor 师理智曹保林
Owner 山西维达传动科技有限公司
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