breaker
A technology for circuit breakers and moving pieces, applied to circuits, contacts, electrical components, etc., can solve the problems of incomplete inspection of the manufacturing process, wide operating temperature bandwidth, and difficulty in temperature setting, so as to realize miniaturization, suppress damage, properly maintained effect
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[0043] A circuit breaker according to one embodiment of the present invention will be described with reference to the drawings. figure 1 as well as figure 2 Shows the structure of the circuit breaker. The circuit breaker 1 includes: a fixed piece 2 with a fixed contact 21; a movable piece 3 with a movable contact 31 at the front end; a thermal response element 4 that deforms with temperature changes; a PTC (positive temperature coefficient) thermal sensor Resistor 5; box body 6 for accommodating fixed piece 2, movable piece 3, thermal response element 4 and PTC thermistor 5, etc. The case 6 is composed of a case main body 61 , a cover member 62 mounted on the upper surface of the case main body 61 , and the like.
[0044]The fixed piece 2 is formed by stamping a metal plate mainly composed of phosphor bronze (it can also be a metal plate such as copper-titanium alloy, nickel brass, brass, etc.), and is formed by insert molding or caulking. It is assembled into the box main...
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