Invention Grant
- Patent Title: Shape memory alloy actuated circuit breaker
- Patent Title (中): 形状记忆合金致动断路器
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Application No.: US12982226Application Date: 2010-12-30
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Publication No.: US08830026B2Publication Date: 2014-09-09
- Inventor: Brian Frederick Mooney , Thomas Frederick Papallo , Brent Charles Kumfer
- Applicant: Brian Frederick Mooney , Thomas Frederick Papallo , Brent Charles Kumfer
- Applicant Address: US CT Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US CT Schenectady
- Agency: Global Patent Operation
- Agent Stephen G. Midgley
- Main IPC: H01H37/46
- IPC: H01H37/46 ; H01H37/76 ; H02H5/04 ; H01H13/70 ; H01H71/14

Abstract:
A thermal trip unit for a circuit breaker having a primary conductive path for conducting a load current is provided. The thermal trip unit comprises a shape memory alloy (SMA) member adapted to change from a first shape to a second shape at a predetermined thermal condition, a holding member coupled electrically in series with the circuit breaker primary conductive path, said holding member arranged to operatively support said SMA member, wherein said SMA member is configured and disposed within the circuit breaker to trigger a trip response of the circuit breaker at said predetermined thermal condition.
Public/Granted literature
- US20120169451A1 SHAPE MEMORY ALLOY ACTUATED CIRCUIT BREAKER Public/Granted day:2012-07-05
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