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US 12,749,640 B2Granted
Electromagnetic relay
AssigneeOMRON Corporation
InventorsShinichi Ogawa, Ryota Minowa
Life of this patent
Estimating the term…
Abstract
An electromagnetic relay includes a fixed terminal, a movable contact piece, a contact case, and a drive device. The fixed terminal includes a fixed contact. The movable contact piece includes a movable contact facing the fixed contact. The contact case is configured to accommodate the fixed contact and the movable contact piece. The drive device includes a fixed iron core to be screw-fastened to the contact case, and a yoke to be held between the fixed iron core and the contact case.
Claims10
An electromagnetic relay comprising:
- a fixed terminal including a fixed contact;
- a movable contact piece including a movable contact opposing the fixed contact;
- a contact case configured to accommodate the fixed contact and the movable contact piece;
- and
- a drive device including
- a fixed iron core to be screw-fastened to the contact case, the fixed iron core including a large-diameter portion, a small-diameter portion smaller in diameter than the large-diameter portion, and a male screw portion on an outer peripheral surface of the small-diameter portion, and
- a yoke to be held between the fixed iron core and the contact case, the yoke including a through-hole, the small-diameter portion of the fixed iron core passing through the through-hole and the yoke being held between the large-diameter portion of the fixed iron core and the contact case, the contact case including a female screw portion to be threaded with the male screw portion.
4 more elements
Dependencies are inferred from the claim text.