Method for Fixing Amorphous Alloy Stator Core and Motor Frame or Cooling Water Jacket

A stator core and amorphous alloy technology, which is applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of decreased magnetic performance of the iron core, increased iron loss, etc., and achieve the effect of avoiding eddy current loss
CN105680588BActive Publication Date: 2019-05-10NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Publication Date
2019-05-10

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Abstract

The invention relates to a method for fixing an amorphous alloy stator core to a motor support or a cooling water jacket, and belongs to the technical field of motor manufacture. The amorphous alloy stator core is fixed to the motor support or the cooling water jacket in the circumferential direction via multiple non-conductive non-magnetic-conductive cylindrical pins; and the motor support or the cooling water jacket internally includes a limiting step, and in the axial direction, one end of the amorphous alloy stator core is fixed by the limiting step, and the other end of the amorphous alloy stator core is limited and fixed by blocking the end portion of the amorphous alloy stator core via multiple radial countersunk screws whose front ends are smooth. According to the method provided by the invention, the stator core makes multi-point contact with the motor support or cooling water jacket in both the axial and the radial directions, the amorphous alloy stator core is prevented from too large pressure and too high pressure intensity locally caused by assembling technology and method, and influence of mechanical stress, caused by assembling, on the magnetic conductive performance of the amorphous alloy stator core is reduced to the minimum.
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Description

Technical field

[0001] The invention belongs to the technical field of motor manufacturing, and particularly relates to a method for fixing an amorphous alloy stator core and a motor frame or a cooling water jacket. Background technique

[0002] Amorphous alloy materials have the advantages of high magnetic permeability and low AC core loss. The application in the field of high-speed motors or multi-pole pairs of high-frequency motors has attracted more and more attention. However, amorphous alloy materials are more sensitive to mechanical stress, and excessive mechanical stress during processing or assembly will greatly reduce the magnetic permeability of amorphous alloy materials.

[0003] The stator core of a traditional silicon steel sheet motor is usually stamped with two or more notches in the outer circle of the stator punch. When a certain pressure is applied to the multilayer stator punch in the axial direction, it is welded through the outer circle notch. The way to fix ...

Claims

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