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Title:
LINEAR POWER GENERATION DEVICE
Document Type and Number:
Japanese Patent JP2013165573
Kind Code:
A
Abstract:

To sufficiently suppress cogging of a linear power generation device.

A power generator 1 is constituted including: a center yoke 2, made of a soft magnetic body, that is constituted by arranging a plurality of rod-like permanent magnets 10, which are in a columnar or cylindrical shape and has columnar or cylindrical outer peripheries magnetized long in axial directions to N and S polarities in peripheral directions, in a peripheral direction such that magnetic poles of adjacent permanent magnets 10 have the same polarity, and also includes a plurality of center-side projection parts 11a arranged linearly in a peripheral direction; and an outer yoke 3, made of a soft magnetic body, that includes a plurality of winding parts 25 which are in a cylindrical or columnar shape and arranged in a peripheral direction around a center axis, a plurality of groove parts 22 which are arranged at positions opposed to the permanent magnets 10, and outer-side projection parts 23a which are arranged opposite the center-side projection parts 11a while shifting by a half pitch in an axial direction and situated with the groove parts 22 interposed in the peripheral direction.


Inventors:
OGINO SANSHIRO
KOBAYASHI RYUICHI
Application Number:
JP2012027165A
Publication Date:
August 22, 2013
Filing Date:
February 10, 2012
Export Citation:
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Assignee:
KOBAYASHI RYUICHI
International Classes:
H02K35/02
Attorney, Agent or Firm:
Iat International Patent Business Corporation