Contact device
AssigneeOMRON Corporation
InventorsTakeshi Nishida, Tatsuro Kato
Life of this patent
Estimating the term…
Abstract
A contact device includes a fixed contact, a movable contact, a housing, and an arc extinguishing member. The movable contact moves between a closed position where the movable contact contacts the fixed contact and an open position where the movable contact is separate from fixed contact. The housing houses the fixed contact and the movable contact. The arc extinguishing member is movably disposed in the housing and discharges an arc extinguishing gas. The arc extinguishing member is disposed facing a gap between the fixed contact and the movable contact when the movable contact is in the open position.
Claims8
A contact device comprising:
- a fixed contact;
- a movable contact configured to move between a closed position where the movable contact contacts the fixed contact and an open position where the movable contact is separate from the fixed contact;
- a housing configured to house the fixed contact and the movable contact;
- and
- an arc extinguishing member movably disposed in the housing, the arc extinguishing member being disposed facing a gap between the fixed contact and the movable contact in a state where the movable contact is in the open position and the arc extinguishing member being supported in a manner that permits the arc extinguishing member to move independently away from the fixed contact and the movable contact and independently away from the gap, the arc extinguishing member being configured to discharge an arc extinguishing gas when exposed to arc-generated heat.
Dependencies are inferred from the claim text.