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Permanent-magnet motor and method of fixing rotor magnetic steel

A permanent magnet motor and rotor technology, which is applied to the rotating parts of the magnetic circuit, the shape/style/structure of the magnetic circuit, etc., can solve the problems related to the permanent magnet motor and its rotor magnets, avoid the risk of easy falling off, and simplify the process , the effect of easy operation

Active Publication Date: 2010-02-10
浙江西子富沃德电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, none of the prior art relates to the permanent magnet motor of the present application and its rotor magnet fixing method

Method used

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  • Permanent-magnet motor and method of fixing rotor magnetic steel
  • Permanent-magnet motor and method of fixing rotor magnetic steel

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Embodiment Construction

[0022] The detailed technical contents and embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Please note that the embodiments described here are only illustrative, and not intended to limit aspects of the present invention. In the drawings, the same reference numerals designate the same or similar components.

[0023] figure 1 and figure 2 The permanent magnet motor shown includes a permanent magnet motor composed of a stator and a rotor, wherein: the rotor part is composed of a rotor yoke 1, a retaining spring 2, a bearing 3, shafts 4 and 6, a key 5, a permanent magnet 7, and a balance mud 8 constitute,

[0024] The shape of the permanent magnet 7 is a concentric arc shape,

[0025] The balance mud 8 is a two-component epoxy curing agent, and the rotor as a whole has a squirrel-cage structure through bonding.

[0026] The permanent magnet motor is characterized in that: the permanent magnet 7 is in the sha...

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Abstract

The invention relates to a method to fix a permanent magnet motor and a magnetic steel structure of a rotor. The rotor of the inventive permanent magnet motor comprises a rotor yoke, a clamp spring, abearing, a shaft and a key, a permanent body and balanced sludge. The permanent magnet is shaped as a concentric circular arc, while the balanced sludge is a dual-composition epoxy-typed solidifyingagent, which can cement the rotor unit into a cage-shaped structure. In accordance with the method provided by the invention, the permanent magnet can be divided into at least two concentric arc-shaped parts with equal scale mark, based on the semi-finished permanent motor which is composed of stators and rotors. And the balanced sludge will be applied to all chamfering edges, as well as around the permanent magnet, to accomplish the cage-shaped structure. The invention is applicable to the motor with high precise control operation, which integrates the fixing method and the dynamic balance process of the rotor. The cage-shaped structure and the permanent magnet motor are characterized in high performance, safety, reliability and durability.

Description

technical field [0001] The invention relates to a permanent magnet motor and a fixing method for its rotor magnetic steel. Background technique [0002] In recent years, with the development of modern control theory and technology, the technology of using rare earths to manufacture permanent magnet motors has continued to improve, and has been widely used in gearless traction machines for elevators, and permanent magnet synchronous gearless traction machines will eventually replace geared motors. Asynchronous traction machine has become an inevitable development trend. [0003] At present, the permanent magnet fixing methods of permanent magnet motors on the market are generally: one is to fix the permanent magnet with a pressure plate and screws; the other is to bond the rotor and the permanent magnet. Glue is added to the cover tape to fix the permanent magnet. The above two fixing methods have certain disadvantages for motors that require precise control. This is becau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/27
Inventor 李创平
Owner 浙江西子富沃德电机有限公司
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