Patent · US Active

Relay, control circuit, and method for controlling control circuit

US8564388B2 · kind B2 · utility

1Cited by

4References

4Claims

0Family size

Assignee

NATIONAL UNIVERSITY CORPORATION MAGAOKA UNIVERSITY OF TECHNOLOGY · JP

Inventors

Yuji Hirao · Tsukuba, JP
Koichi Futsuhara · Saitama, JP

Key dates

Filing date	Apr 13, 2011
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Apr 13, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01H3/001
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The relay (KM) has at least first and second contact points (a1, a2), the states of which are switched from an open state to a close state by the drive of an electromagnet (32). The first and second contact points (a1, a2) switch the states between the open state and the close state by enabling movable contact pieces (31) to move with respect to respective fixed contact pieces (30) by using a power transmission mechanism (21) movable by the drive of the electromagnet (32). The first and second contact points (a1, a2) are set so that the second contact point (a2) is switched to the close state after the first contact point (a1) is switched to the close state and the first contact point (a1) is switched to the open state after the second contact point (a2) is switched to the open state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.