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Brushless electric machine

A technology of electric machinery and brushless motor, applied in the direction of AC motor control, electrical components, electromechanical devices, etc., can solve the problem of not necessarily permanent magnets, etc.

Inactive Publication Date: 2009-04-08
GK BRIDGE 1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, existing brushless electric machines have the problem of not being able to fully and efficiently utilize the magnetic flux of permanent magnets

Method used

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  • Brushless electric machine
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Examples

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Deformed example 2

[0120] The present invention can be applied to motors of various devices such as fan motors, clocks (pin drive), drum washing machines (unidirectional rotation), scooters, and vibration motors. When the present invention is applied to a fan motor, the above-mentioned various effects (low power consumption, low vibration, low noise, low rotation unevenness, low heat generation, and long life) are particularly remarkable. Such a fan motor can be used for various devices such as digital display devices, in-vehicle devices, fuel cell computers, fuel cell digital cameras, fuel cell digital video cameras, fuel cell powered devices such as fuel cell mobile phones, and projectors. fan motor. Furthermore, the motor of the present invention can also be used as a motor of various household appliances and electronic devices. For example, the motor of the present invention can be used as a spindle motor in an optical storage device, a magnetic storage device, a polygonal reflector drive d...

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Abstract

The present invention provides a brushless electric machine that is able to efficiently utilize the magnetic flux of the permanent magnets. The brushless electric machine is provided wiht a first member (40a) and a second member (50a). The first member (40a) has a magnet assembly (20) that includes a plurality of permanent magnets (10) held with their homopoles contacting one another. The second member (50a) includes magnet coils (30), and is designed to be changeable in position relative to the first member. The magnet assembly (20) generates the strongest magnetic field in a magnetic field direction lying in the homopolar contact plane at which the homopoles contact one another, the magnetic field direction being oriented outward from the magnet assembly (20) along the magnetic field direction.

Description

technical field [0001] The present invention relates to a brushless electric machine using a permanent magnet and an electromagnetic coil. Background technique [0002] A brushless electric machine is a term that includes a brushless motor and a brushless generator. As a brushless motor, for example, the brushless motor described in the following Patent Document 1 is known. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2001-298982 [0004] However, the conventional brushless electric machines have a problem that the magnetic flux of the permanent magnets cannot be sufficiently efficiently utilized. SUMMARY OF THE INVENTION [0005] An object of the present invention is to provide a brushless electric machine that efficiently utilizes the magnetic flux of a permanent magnet. [0006] The present invention has been made in order to solve at least a part of the above-mentioned problems, and can be realized by the following aspects or application examples. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K41/035H02K41/03H02P25/06
Inventor 竹内启佐敏
Owner GK BRIDGE 1