Circuit breaker shock absorber apparatus, assemblies, and methods of operation
AssigneeSiemens Aktiengesellschaft
InventorJan Rojko
Life of this patent
Estimating the term…
Abstract
Embodiments disclose a circuit breaker shock absorber apparatus configured to absorb impact due to blow-off of one or more circuit breaker contact arms. The circuit breaker shock absorber apparatus has a base directly or indirectly coupled to a circuit breaker housing and an absorber body comprising a damping material having a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45, and a durometer of less than about 60 per ASTM D2240 Type A. Circuit breaker shock absorber assemblies and methods of operating the breaker shock absorber assemblies are provided, as are other aspects.
Claims22
A circuit breaker shock absorber apparatus, comprising:
- a circuit breaker housing;
- and
- a shock absorber coupled to the circuit breaker housing, the shock absorber including a base coupled to the circuit breaker housing and removably coupled to an absorber body comprising a damping material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45, and a durometer of less than about 60 per ASTM D2240 Type A.
A circuit breaker shock absorber assembly, comprising:
- a circuit breaker housing including a mounting portion and a supporting wall;
- a side pole shock absorber including a base plate coupled to the mounting portion and to an absorber body, the absorber body being supported by the supporting wall, the absorber body comprising an inner core portion of a damping elastomer material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45 and a durometer of less than about 60 per ASTM D2240 Type A;
- and
- one or more moveable contact arms configured and operable to contact the side pole shock absorber.
A circuit breaker shock absorber assembly, comprising:
- a circuit breaker housing;
- a frame including spaced apart first and second frame portions;
- a center pole shock absorber including
- a base coupled to the frame portions, and
- an absorber body coupled to the base, the absorber body comprising a core portion of a damping elastomer material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45, and a durometer of less than about 60 per ASTM D2240 Type A;
- and
- one or more moveable contact arms configured and operable to contact the center pole shock absorber.
A circuit breaker shock absorber assembly, comprising:
- a circuit breaker housing including at least two pole regions;
- a frame including spaced apart first and second frame portions coupled to the housing at one of the at least two pole regions;
- a center shock absorber including
- a center base coupled to the first and second frame portions,
- a center absorber body coupled to the base, the center absorber body comprising
- a center core portion of a damping material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45 and a durometer of less than about 60 per ASTM D2240 Type A;
- at least one side pole shock absorber including
- a side base coupled to a mounting wall of the circuit breaker housing, and
- a side absorber body comprising
- an side core portion of a damping elastomer material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45 and a durometer of less than about 60 per ASTM D2240Type A;
- and
- one or more moveable contact arms provided at the at least two pole regions and operable to contact the center pole shock absorber and the at least one side pole shock absorber.
A circuit breaker shock absorber subassembly, comprising:
- a frame including spaced apart first and second frame portions;
- and
- a center pole shock absorber including
- a base coupled to the frame portions, and
- an absorber body coupled to the base, the absorber body comprising a core portion of a damping elastomer material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45, and a durometer of less than about 60 per ASTM D2240 Type A.
A method of operating a breaker shock absorber assembly, comprising:
- providing a circuit breaker housing;
- providing a shock absorber coupled to the circuit breaker housing, the shock absorber including a base coupled to the circuit breaker housing and an absorber body coupled to the base, the absorber body comprising a damping material including a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45 and a durometer of less than about 60 per ASTM D2240 Type A;
- and
- absorbing kinetic energy of one or more moveable contact arms by contact with the shock absorber.
Dependencies are inferred from the claim text.