Omron Corporation

Hideyuki Wachi

Kazuhiro Tsutsui

It is intended to provide an electromagnetic relay which resolves problems of large base size and difference in spring constant. In a facing gap defined between a pair of electromagnet units disposed on a base in parallel to each other and with shaft lines being oriented to an identical direction, a pair of moving contact springs overlaid along a vertical direction on the base and an A-fixed terminal unit and a B-fixed terminal unit provided with a plurality of contacts to which contacts of the moving contact springs selectively contact depending on excitation/non-excitation states of the electromagnetic units are housed. At least one of component parts of the respective electromagnetic units are included in electromagnetic connection passages between the moving contact springs and C-terminals.

Electromagnetic relay

A small-sized electromagnetic relay which can afford high current and dissipate generated heat efficiently is disclosed. A plate section for coupling to one side of a yoke is formed on a movable contact terminal . Countersunk rivet features at three or more positions which are not aligned on a line on the plate section couple the movable contact terminal to the yoke . A base end of a movable contact spring is coupled to the surface of the plate section opposite to the yoke to support the movable contact spring . In the countersunk rivet feature, each protrusion formed on the yoke is inserted into the corresponding countersunk hole formed on the plate section , respectively, and the tops of the protrusions are crushed to expand its diameter so as to sandwich the plate section against the yoke

Growing community of inventors

Iida, Japan

Hideyuki Wachi