Welding free relay contact device
AssigneeMatsushita Electric Works, Ltd.
InventorsYoichi Yokoyama, Hiroaki Hamaguchi, Hideya Kondo, Nobuhiro Kitamura, Takatoshi Hongyou
Life of this patent
Estimating the term…
Abstract
A contact device is provided with an additional mass member secured to a movable contactor carrying a movable contact capable of opening and closing contacts with a stationary contact, for providing to the movable contactor a mass acting in a direction perpendicular to longitudinal axis of the contactor. A rolling motion is thereby caused to occur in the movable contactor upon contact closing motion so that the movable contact can be prevented from being fusion-bonded to the stationary contact.
Claims11
A contact device comprising:
- a stationary contact side terminal plate;
- a stationary contact secured to said stationary contact side terminal plate;
- a resilient contactor;
- a movable contact secured to an end of said resilient contactor which is continuous to said stationary contact upon contact closing;
- a movable contact side terminal plate integrally formed at the other end of said resilient contactor;
- and
- an additional mass means formed in a separate member and secured to said resilient contactor at a remote location which exerts a force in a direction perpendicular to a longitudinal axis of the resilient contactor and parallel to a direction of movement of said movable contact, so that said movable contact is caused to roll relative to said stationary contact when said movable contact and said stationary contact are contiguous.
A remote controlled relay comprising a casing, an electromagnetic means accommodated in said casing, a contact operating means disposed to be pivotally moved by said electromagnetic means, and main and auxiliary contact devices respectively comprising a stationary contact side terminal plate, a stationary contact provided to said stationary contact side terminal plate, a resilient contactor, a movable contact secured to an end of said resilient contactor for contact closing and opening with respect to said stationary contact, a movable contact side terminal plate with which said contactor is made integral at the other end thereof, and an additional mass means secured to said resilient contactor to extend therefrom in a direction perpendicular to a longitudinal axis of the resilient contactor and parallel to the direction of opening and closing of the movable contact, so that said movable contact is caused to roll relative to said stationary contact when said movable contact and said stationary contact are continuous said contact devices being respectively operated by the pivotal movement of said contact operating means for contact closing and opening.
Dependencies are inferred from the claim text.