ELECTROMAGNETIC RELAY

• Main Authors: KAWAGUCHI NAOKI, MINOWA RYOTA
• Format: Patent
• Language: English; Japanese
• Published: 01.06.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

To quickly extinguish an arc while preventing an increase in weight of a movable contact piece in an electromagnetic relay.SOLUTION: An electromagnetic relay comprises: a stationary terminal; a movable contact piece; a driving device; and arc guide. The stationary terminal includes a stationary contact. The movable contact piece includes a movable contact that can be in contact with the stationary contact. The driving device moves the movable contact piece to a closed position where the movable contact is in contact with the stationary contact and an open position where the movable contact is opened from the stationary contact. The arc guide is a separate body from the movable contact piece. The arc guide is opened from the movable contact piece when the movable contact piece is at the closed position, and is in contact with the movable contact piece when the movable contact piece is at the open position to extend an arc generated between the stationary contact and the movable contact.SELECTED DRAWING: Figure 3 【課題】電磁継電器において、可動接触片の重量の増加を抑制しつつ、アークを迅速に消弧する。【解決手段】電磁継電器は、固定端子と、可動接触片と、駆動装置と、アークガイドとを備える。固定端子は、固定接点を含む。可動接触片は、固定接点に接触可能な可動接点を含む。駆動装置は、可動接点が固定接点に接触する閉位置と可動接点が固定接点から開離した開位置とに可動接触片を移動させる。アークガイドは、可動接触片と別体である。アークガイドは、可動接触片が閉位置にあるときに可動接触片から開離し、可動接触片が開位置にあるときに可動接触片に接触して固定接点と可動接点との間で生じるアークを伸長させる。【選択図】図３