Arc chamber for bi-directional DC
AssigneeEaton Corporation
InventorsXin Zhou, Richard Paul Malingowski, Kelly Julia McCarthy, David E. Little
Life of this patent
Estimating the term…
Abstract
A circuit breaker including a pair of separable contacts and an arc chamber is provided. The separable contacts include a fixed contact having an upper surface. The arc chamber includes magnetic members disposed on either side of the separable contacts. The magnetic members have a lower surface below the fixed contact upper surface.
Claims18
An arc chamber assembly for a direct current circuit breaker, said circuit breaker including a number of pairs of separable contacts, each pair of separable contacts including a fixed contact having a generally planar upper surface, wherein said fixed contact has a width, said arc chamber comprising:
- a housing assembly and a number of conductive members;
- said housing assembly including a number of support members and a number of magnetic members, each magnetic each member having a generally horizontal lower surface;
- each magnetic member coupled to a support member;
- wherein said support members position each said magnetic member lower surface below said fixed contact upper surface;
- said number of conductive members includes an arc runner assembly;
- said arc runner assembly includes a number of conductive plates;
- said arc runner conductive plates disposed adjacent to, and in electrical communication with, said fixed contact;
- and
- said arc runner assembly has a width that is greater than the width of said fixed contact.
A circuit breaker assembly comprising:
- a housing assembly defining a number of contact chambers;
- a number of conductor assemblies each having a pair of separable contacts;
- each conductor assembly further including a fixed conductor, and an arc chamber assembly;
- each said fixed conductor including an elongated body with a first end and a medial portion said fixed conductor body end curled over said fixed conductor body medial portion;
- wherein each said fixed conductor body first end is a fixed contact icluding an upper surface;
- each said arc chamber assembly includes a housing assembly and a number of conductive members;
- each said arc chamber housing assembly including a number of support members and a number of magnetic members each magnetic member havinig generally horizontal lower surface;
- each magnetic member coupled to a support member;
- wherein each said support members position the associated magnetic members' lower surface below the associated fixed contact upper surface;
- each said fixed contact has a width;
- said number of conductive members includes an arc runner assembly associated with each pair of separable contacts;
- each said arc runner assembly includes a number of conductive members;
- said arc runner conductive members disposed below, and in electrical communication with, said associated fixed contact;
- and
- each said arc runner assembly has a width that is greater than the width of said associated fixed contact.
Dependencies are inferred from the claim text.