Miniature circuit breaker
AssigneeEllenberger & Poensgen GmbH
InventorWolfgang Ullermann
Life of this patent
Estimating the term…
Abstract
A miniature circuit breaker has a housing formed of a housing base of insulating material and a pot-like housing cover, which is or can be positioned onto the housing base. Two elongate and flat contact arms are partially embedded in the housing base parallel with respect to one another in terms of their longitudinal direction. A fixed contact is arranged at an inner end of a first one of the contact arms. A bimetallic snap-action disk with a free end, forming or bearing a moving contact, is fitted at an inner end of the second contact arm at a fastening point. The fastening point, the moving contact and the fixed contact are in this case on an axis which is parallel to the longitudinal direction of the contact arms.
Claims25
A miniature circuit breaker, comprising:
- a housing formed with a housing base of insulating material and a pot-shaped housing cover configured for placement on said housing base;
- two flat, elongate contact arms partially embedded in said housing base and extending parallel to one another in a longitudinal direction thereof, said contact arms including a first contact arm having an inner end and a second contact arm having an inner end with a fastening point;
- a fixed contact disposed at said inner end of said first contact arm;
- a bimetallic snap-action disk with a moving contact at a free end thereof, said snap-action disk being mounted to said fastening point at said inner end of said second contact arm, said fastening point and said moving contact lying on an axis extending parallel to the longitudinal direction of said contact arms;
- said inner end of said second contact arm being bent backwards between said housing base and said fastening point, about an axis extending transversely to the longitudinal direction of said contact arms, causing said inner end of said second contact arm to extend with an inclination relative to a central plane of the circuit breaker.
Dependencies are inferred from the claim text.