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Linear power generator

A technology of linear power generation and permanent magnets, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of inner yoke reciprocating motion obstruction, unfavorable high-efficiency power generation, etc., and achieve the effect of fully suppressing cogs

Inactive Publication Date: 2014-11-26
小林 隆逸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in the linear power generation device, the cogs will also hinder the reciprocating movement of the inner yoke, which is not conducive to efficient power generation

Method used

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  • Linear power generator
  • Linear power generator
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Embodiment Construction

[0029] Embodiments of the present invention will be described below while referring to the accompanying drawings. Meanwhile, in the following description, the magnetic flux is the flux of the magnetic force lines, and the magnetic circuit is the passage of the magnetic force lines. In addition, the expression of forming a magnetic circuit through magnetic flux can also be converted into forming a magnetic circuit through magnetic lines of force. Meanwhile, the "linear power generating device" is only referred to as "generator" in the following description.

[0030] The generator 1 related to the embodiment of the present invention is as figure 1 As shown, the appearance structure is composed of an inner yoke 2, an outer yoke 3, and an output terminal 4 for outputting generated power. The generator 1 generates electricity through the reciprocating motion (vibration) of the inner yoke 2 inside the outer yoke 3 . For example, the arm 7 is connected to the disc 5 driven to rota...

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Abstract

The purpose of the invention is to sufficiently suppress cogging of a linear power generator. A power generator (1) is configured by having a columnar or cylindrical center yoke (2) and a columnar or cylindrical outer yoke (3). The center yoke (2) is formed of a soft magnetic material and has: a plurality of rod-shaped permanent magnets (10) elongated in an axial direction, NS magnetized in a circumferential direction, and disposed on the columnar or cylindrical outer circumference in a circumferential direction so that the facing magnetic poles of adjacent permanent magnets (10) have the same polarity; and a plurality of center side projecting portions (11a) disposed in a linear fashion in a circumferential direction. The outer yoke (3) is formed of a soft magnetic material and has: a plurality of winding portions (25) disposed about the central axis in a circumferential direction; a plurality of groove portions (22) disposed at positions facing the permanent magnets (10); and outer side projecting portions (23a) disposed shifted by a half pitch in an axial direction with respect to the center side projecting portions (11a) and sandwiching the groove portions (22) in a circumferential direction.

Description

technical field [0001] The invention is a linear power generation device. Background technique [0002] Existing vibration generators (or reciprocating generators) can convert kinetic energy generated by reciprocating permanent magnets into electrical energy (refer to Patent Document 1). This type of vibration generator (or reciprocating generator) is referred to as a linear power generator in this specification. A linear power generator has an inner yoke that corresponds to a rotor of a rotary generator and reciprocates (vibrates), and an outer yoke that corresponds to a stator of a rotary generator. Generally, the outer yoke side has a winding part (coil part), and the inner yoke has a permanent magnet, and the electric power generated by the winding part is extracted through the reciprocating motion of the inner yoke in the fixed outer yoke. At the same time, in order to make the rotating shaft move smoothly, the technology of suppressing the cogging is generally used i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K35/02
CPCH02K2207/03H02K35/02H02K7/1876H02K1/34H02K35/00H02K35/06H02K41/00H02K41/02H02K41/031
Inventor 小林隆逸荻野三四郎
Owner 小林 隆逸