US 2013/0257566 A1 · POLARIZED ELECTROMAGNETIC RELAY

Abstract

A polarized electromagnetic relay including an electromagnet; a pair of magnetic pole pieces driven by the electromagnet; a permanent magnet attached to the magnetic pole pieces; a contact section including a first fixed contact member with a normally open fixed contact, a first movable contact member with a normally open movable contact, a second fixed contact member with a normally closed fixed contact, and a second movable contact member with a normally closed movable contact; and a transmission member to which the magnetic pole pieces is attached. In accordance with a rectilinear movement of the magnetic pole pieces in parallel to a coil center axis, the transmission member rectilinearly moves in parallel to the center axis and thereby causes the normally open and closed movable contacts to perform an opening or closing operation in a mutually interlocked manner.

Claims8

Dependent claims

An electromagnetic relay, comprising:

an electromagnet that includes a coil;
a first contact that includes a first fixed contact and a first movable contact that contacts with and is separated from the first fixed contact;
a second contact that includes a second fixed contact and a second movable contact that contacts with and is separated from the second fixed contact;
a transmission member that is movable in a direction along a center axis of the coil, and simultaneously actuates the first movable contact and the second movable contact so as to alternatively open and close the first contact and the second contact;
and
a magnetic pole piece attached to the transmission member, and is actuated in response to excitation of the electromagnet;
wherein the transmission member moves in response to the actuation of the magnetic pole piece.

4 more elements

Dependencies are inferred from the claim text.

Polarized electromagnetic relay

Life of this patent

Polarized electromagnetic relay

Life of this patent

Abstract

Claims8