US 12,033,817 B2 · Circuit breaker with simplified non-linear double motion

Abstract

The invention concerns a double-motion circuit breaker comprising primary and secondary movable contacts slidingly mounted within primary and secondary holders, wherein the primary movable contact comprises a tulip and a contact cylinder attached thereto, and the secondary movable contact comprises a pin for engaging the tulip but no counter-contact for engaging the contact cylinder. The circuit breaker also has a non-linear linkage mechanism with a pin and slot mechanism, and a fixed dielectric shield provided on the secondary holder. During disconnection, the linkage mechanism is preferably arranged to move the pin more than the tulip, proportionally to their maximum stroke, so as to quickly bring the pin tip within the fixed dielectric shield, whereafter the tulip moves more than the pin. This circuit breaker is cheaper, lighter and can be disconnected more quickly.

Claims15

Dependent claims

A non-linear double-motion circuit breaker comprising a primary movable contact and a secondary movable contact slidingly mounted within a primary holder and a secondary holder respectively, wherein the primary movable contact comprises a tulip and a contact cylinder attached thereto, and the secondary movable contact comprises a pin having a pin tip the circuit breaker further comprising a linkage mechanism arranged to allow non-linear movement of the secondary movable contact in an opposite direction to a movement of the primary movable contact wherein the secondary holder has a fixed dielectric shield an end opposing the primary holder, and in that the secondary movable contact does not comprise a counter-contact for engaging the contact cylinder.

Dependencies are inferred from the claim text.

Circuit breaker with simplified non-linear double motion

Life of this patent

Circuit breaker with simplified non-linear double motion

Life of this patent

Abstract

Claims15