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Rotor cage of squirrel cage motor

A squirrel-cage motor and rotor technology, which is applied to asynchronous induction motors, electrical components, electromechanical devices, etc., can solve the problems of high cost of copper rotor squirrel cages and difficulty in guaranteeing the quality of aluminum rotor squirrel cages, etc., to make up for the difficulty in casting quality Guaranteed, saving silver solder, quality easy effect

Pending Publication Date: 2018-08-24
永济市贝特电气机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention is mainly used to solve the technical problems in the prior art that the cost of the copper rotor cage is high and the quality of the aluminum rotor cage is difficult to guarantee

Method used

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  • Rotor cage of squirrel cage motor
  • Rotor cage of squirrel cage motor
  • Rotor cage of squirrel cage motor

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Experimental program
Comparison scheme
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Embodiment Construction

[0010] Reference figure 1 The squirrel cage of a squirrel cage motor of the present invention includes a plurality of composite guide bars 1 and two aluminum end rings 2 connected to the two ends of the composite guide bar 1. The composite guide bar 1 is composed of aluminum bars 11 and The copper layer 12 around the aluminum strip 11 is composed. This structure mainly utilizes the skin effect of current transfer, that is: when the conductor passes alternating current, most of the current density is concentrated on the surface of the conductor, and most of the current passes through the copper layer 12, making full use of the copper guide strip The advantages of good electrical conductivity, and at the same time the center of the guide bar is set as an aluminum bar 11, which reduces the overall mass of the guide bar, makes it lighter, and makes full use of the advantages of the aluminum guide bar.

[0011] Reference Figure 2-4 The aluminum end ring 2 is provided with an axial t...

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Abstract

The invention relates to the field of squirrel cage motor accessories and particularly relates to a rotor cage of a squirrel cage motor, mainly to solve the technical problems that a copper rotor cagein the prior art is high in cost and the quality of an aluminum rotor cage is hard to ensure. The below technical scheme is mainly adopted and the rotor cage of the squirrel cage motor comprises a plurality of composite guide bars and two aluminum end rings connected at two ends of the composite guide bars, wherein the composite guide bar is formed by an aluminum bar and a copper layer coating the periphery of the aluminum bar. The rotor cage is mainly applicable to a squirrel cage motor, in particularly, a squirrel cage-type asynchronous motor, and is used as a rotor cage structure of the squirrel cage motor.

Description

Technical field [0001] The invention relates to the field of squirrel cage motor accessories, in particular to a rotor squirrel cage of a squirrel cage motor. Background technique [0002] Squirrel cage motors are the most important form of converting electrical energy into mechanical energy. They are widely used in industries, agriculture, military, aerospace, shipping, transportation, instrumentation and other fields. The rotor squirrel cage of the squirrel cage motor is one of the important parts of the motor. The performance of the squirrel cage directly affects the operation efficiency, operation stability and reliability of the motor. Most of the rotor squirrel cages of the existing squirrel cage motors are made of copper bars or cast aluminum. The structure of pure copper bar or copper alloy guide bar is generally used. Induction welding is generally used to weld the rotor copper guide bar and the copper end ring together with silver solder to form a rotor squirrel cage, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K17/16
CPCH02K17/16
Inventor 王淑萍刘丰慧王建龙许宁姚敏
Owner 永济市贝特电气机械有限公司
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