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Silicon steel sheet fixing structure of brushless DC electric machine

A brushed DC motor, silicon steel sheet technology, applied in electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., can solve the problems of not being able to reduce costs, shorten assembly time and improve production efficiency, and improve production efficiency. , The effect of shortening assembly time and reducing cost

Inactive Publication Date: 2003-05-28
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this fixed method, there is a limitation that the assembly time cannot be shortened and the production efficiency can be improved
[0007] Moreover, since the above-mentioned bracket plates on the front and rear sides are made of brass, there are limitations such as not being able to reduce costs.

Method used

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  • Silicon steel sheet fixing structure of brushless DC electric machine
  • Silicon steel sheet fixing structure of brushless DC electric machine
  • Silicon steel sheet fixing structure of brushless DC electric machine

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Embodiment Construction

[0019] Hereinafter, the magnet fixing structure of the brushless DC motor of the present invention will be described in more detail with reference to the accompanying drawings and examples.

[0020] Such as figure 2 As shown, the magnet fixing structure of the brushless DC motor of the present invention is to form a shaft pressing hole 2 in the center of the iron core 1 formed by die-casting; at its front part, a square magnet insertion hole 3 is formed; Insert magnet 4 into hole 3.

[0021] In the front and back of iron core 1, under the state that front and rear side support plates 5,6 are set, riveting with rivets 7, the fixed operation can prevent magnet 4 from breaking away from iron core 1 with this. Thus, for the riveting operation, the rear support plate 6 arranged behind the magnet 4 is pulled up together with the iron core 1 and die-casted simultaneously.

[0022] Since the material of the rear side bracket plate 6 is an iron plate, the cost can be reduced compare...

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PUM

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Abstract

A fixing structure of silicon sheets for brushless DC motor is composed of iron core, magnet in which iron core inserted, front and back support plates for fixing said magnet, and rivets inserted in said front and back support plates. Its advantages are easy assembling and low cost.

Description

technical field [0001] The invention relates to a brushless direct current motor, in particular to a silicon steel sheet fixing structure of the brushless direct current motor. Background technique [0002] figure 1 It is a structure in which magnets are embedded in a die-cast iron core, and a brief explanation is as follows. [0003] Such as figure 1 As shown, in the rotor of the conventional brushless DC motor, a shaft pressing hole 2 is formed in the center of the die-cast iron core (1), and a magnet 4 is buried in a square shape on one side. [0004] In front of the iron core 1 that has embedded the magnet 4, a plurality of front side bracket plates 5 that are made of brass are tightly installed, and a plurality of rear side bracket plates 6 are closely installed behind it, and the front and rear side bracket plates that are tightly installed 5, 6, and the through holes 1a, 5a, 6a formed on the iron core 1 are inserted into the rivets and fixed by riveting. [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K29/00
Inventor 金成道
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD