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Brushless D.C. motor stator

A motor stator and stator technology, which is applied in the magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., can solve the problems of reducing the thickness, and the thickness of the motor stator cannot be relatively reduced.

Inactive Publication Date: 2006-08-30
SUNONWEALTH ELECTRIC MACHINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, no matter how much the actual thickness of the main motor stator element is reduced, it still has a certain thickness
As far as reducing the thickness is concerned, if the number of main motor stator components cannot be reduced, the thickness of the motor stator cannot be relatively reduced

Method used

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  • Brushless D.C. motor stator
  • Brushless D.C. motor stator
  • Brushless D.C. motor stator

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Embodiment Construction

[0029] In order to allow the above and other purposes, features and advantages of the present invention to be more clearly understood, the preferred embodiments of the present invention will be specifically cited below, and in conjunction with the accompanying drawings, the detailed description is as follows:

[0030] see figure 2 , 3 , The brushless DC motor stator of the first preferred embodiment of the present invention includes a single magnetically conductive sheet 10, a coil 20, a driving element 30, and a motor rotor 50 axially sleeved by a bearing 40 to form a motor. The magnetically permeable sheet 10 is made by punching a metal plate with good magnetic permeability. The magnetically permeable sheet 10 includes a pole piece main body 11 , a shaft hole 12 , several pole surfaces 13 and at least one fixing hole 14 .

[0031] The pole piece main body 11 can be formed as a base, which can be rectangular, and has a central shaft hole 12 in its center. The shaft hole 12 ...

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Abstract

The present invention relates to a brushless DC motor stator, including stator, and is characterized by that said stator is equipped with magnetic conductive sheet formed by stamping magnetic conductivity metal sheet, the magnetic conductive sheet can be made into pole piece main body and several pole faces which are projected on the side face of the pole piece main body and formed into the form of ring around said main body. The magnetic conductive sheet is combined with a drive element. It can reduce the number of elements of motor stator.

Description

technical field [0001] The invention relates to a DC motor stator, in particular to a magnetic pole piece main body, a shaft hole and a number of magnetic pole faces formed by a single magnetic conductive sheet at the same time, which can reduce the number of motor stator components, the overall thickness of the stator and simplify the overall structure of the stator brushless DC motor stator. Background technique [0002] Due to the large number of components in the motor stator, such as stator base, shaft hole, coil, magnetic pole piece and circuit board with driving components, etc., the overall thickness of the fan cannot be effectively reduced or the overall volume cannot be effectively reduced, so it is not suitable for Certain ultra-thin electronic devices, such as notebook computers. [0003] Conventional motor stator configurations such as figure 1 As shown, the brushless DC motor 1 of U.S. Patent No. 5,093,599 issued to HORNG on March 3, 1992 mainly includes a st...

Claims

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Application Information

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IPC IPC(8): H02K1/12H02K3/00
Inventor 洪银树洪银农洪庆升
Owner SUNONWEALTH ELECTRIC MACHINE IND