Double make double break interrupter module with independent blades
AssigneeSchneider Electric USA, Inc.
InventorCameron L. Woodson
Life of this patent
Estimating the term…
Abstract
An interrupter module (10) of a molded case circuit breaker (2) includes two stationary electrical contacts (20), and a blade carrier assembly (100) with a blade assembly (130) and a carrier (160) for the blade assembly. The blade assembly includes two conductive blades (140A, 140B). Each blade includes a movable electrical contact (150A, 150B) for engaging a corresponding stationary electrical contact in a closed position and for disengaging from the corresponding stationary electrical contact in an open position. Each blade has an independent over travel and contact force to maintain contact between the movable electrical contacts and corresponding stationary electrical contacts in the closed position.
Claims10
An interrupter module of a molded case circuit breaker, comprising:
- two stationary electrical contacts;
- and
- a blade carrier assembly including:
- a blade assembly having two conductive blades, each conductive blade including a movable electrical contact configured to engage a corresponding one of the two stationary contacts in a closed position and to disengage from the corresponding one of the two stationary contacts in an open position, each of the two conductive blades having an independent over travel and contact force to maintain contact between the movable electrical contacts and corresponding stationary electrical contacts in the closed position;
- a rotatable carrier for the blade assembly, the two conductive blades mounted in the carrier to pivot in relation to one another;
- and
- an extension spring for each of the conductive blades, the extension spring of each of the conductive blades controlling the over travel and contact force of the conductive blade,
- wherein the blade carrier assembly further comprises:
- a pivot pin for each conductive blade of the blade assembly,
- wherein the rotatable carrier further comprises a cam surface and a fixed pin for each conductive blade, the two conductive blades together further being rotatably mounted in the carrier such that the pivot pin of each conductive blade cams against a corresponding one of the cam surfaces of the carrier to control movement of the conductive blades between the closed position and the open position, the open position comprising a blown open position.
A rotatable blade carrier assembly for an interrupter module of a molded case circuit breaker, comprising:
- a blade assembly having two conductive blades, each conductive blade including a movable electrical contact configured to engage a corresponding stationary electrical contact of an interrupter module in a closed position and to disengage from the corresponding stationary contacts in an open position, each of the two conductive blades having an independent over travel and contact force to maintain contact between the movable electrical contacts and corresponding stationary electrical contacts in the closed position;
- a rotatable carrier for the blade assembly, the two conductive blades mounted in the carrier to pivot in relation to one another;
- an extension spring for each of the conductive blades, the extension spring of each of the conductive blades controlling the over travel and contact force of the conductive blade;
- and
- a pivot pin for each conductive blade of the blade assembly,
- wherein the rotatable carrier further comprises a cam surface and a fixed pin for each conductive blade, the two conductive blades together further being rotatably mounted in the carrier such that the pivot pin of each conductive blade cams against a corresponding one of the cam surfaces of the carrier to control movement of the conductive blades between the closed position and the open position, the open position comprising a blown open position.
Dependencies are inferred from the claim text.