ELECTROMAGNETIC CONTACTOR - FUJI ELEC FA COMPONENTS & SYS

Title:

ELECTROMAGNETIC CONTACTOR

Document Type and Number:

WIPO Patent Application WO/2011/021329

Kind Code:

A1

Abstract:

Disclosed is an electromagnetic contactor capable of reliably returning to a contact opening position without increasing the spring force of a return spring. Specifically disclosed is an electromagnetic contactor which comprises an electromagnet device (4) including an exciting coil (10) and a contact mechanism including a return spring (41). The electromagnet device and the contact mechanism are disposed parallel to each other and connected to each other using a driving lever. The electromagnet device comprises a polarized electromagnet having a magnetic circuit including a permanent magnet that generates attractive force for moving the contact mechanism toward a contact opening position when the exciting coil is not energized. The driving lever is fixed to one of the electromagnet device and the contact mechanism, and brought into contact with the other such that no gap is left therebetween at least when the contact mechanism moves toward the contact opening position. The return force of the contact mechanism adjacent to the contact opening position is covered with the attractive force of the permanent magnet.

More Like This:

JPS6139853

[Title of the device] Owner pole relay

Inventors:

NAKA YASUHIRO (JP)
OHGAMI TOSHIKATSU (JP)
OKUBO KOJI (JP)
TAKAYA KOETSU (JP)
SUZUKI KENJI (JP)

Application Number:

PCT/JP2010/003931

Publication Date:

February 24, 2011

Filing Date:

June 14, 2010

Export Citation:

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Assignee:

FUJI ELEC FA COMPONENTS & SYS (JP)
NAKA YASUHIRO (JP)
OHGAMI TOSHIKATSU (JP)
OKUBO KOJI (JP)
TAKAYA KOETSU (JP)
SUZUKI KENJI (JP)

International Classes:

H01H50/16; H01H50/64

Foreign References:

JPH0349125A	1991-03-01
JPH0638144U	1994-05-20
JPS63174150U	1988-11-11
JPH0686245B2	1994-11-02

Other References: