Main circuit part of vacuum circuit breaker with self-powered temperature sensor assembly
The present invention relates to a main circuit part of a vacuum circuit breaker, and more particularly, to a main circuit part of a vacuum circuit breaker with a temperature sensor. The main circuit part of a vacuum circuit breaker with a self-powered temperature sensor assembly includes: a self-powered temperature sensor module; and a support bracket enclosing and supporting the self-powered temperature sensor module.
1. A main circuit part of a vacuum circuit breaker with a self-powered temperature sensor assembly, the main circuit part comprising:
a self-powered temperature sensor module installed as part of a main circuit part terminal; and
a support bracket enclosing and supporting the self-powered temperature sensor module, wherein:
the self-powered temperature sensor module comprises a temperature measurement part, a wireless communication module, and a sensor radiator fin at a top of the temperature measurement part;
the temperature measurement part produces an electromotive force using a difference between a temperature at the top of the temperature measurement part and a temperature at a bottom of the temperature measurement part without a power supply unit; and
the self-powered temperature sensor module is located on a mounting part formed as a flat base at a center of the radiator fin.
2. The main circuit part of claim 1 , wherein the support bracket includes a boxed-shaped body part and support wings, a bottom of the body part fully open and front, rear, top, and sides of the body part partially open.
3. The main circuit part of claim 1 , further comprising an upper fixing plate and lower fixing plate enclosing and supporting the wireless communication module.
4. The main circuit part of claim 3 , wherein the support bracket, the lower fixing plate, and the upper fixing plate are formed of a non-magnetic material.
5. The main circuit part of claim 3 , wherein the upper fixing plate extends to the temperature measurement part and is attached to the support bracket.
6. The main circuit part of claim 3 , further comprising an insulating, shock-absorbing spacer is interposed between the wireless communication module and the upper fixing plate or between the wireless communication module and the lower fixing plate.
7. The main circuit part of claim 1 , wherein the temperature measurement part is in direct contact with an upper terminal and a lower terminal of the main circuit part and directly measures temperature of the upper terminal and the lower terminal.
8. The main circuit part of claim 1 , wherein the sensor radiator fin causes heat generated by the temperature measurement part to be released such that the temperature at the top of the temperature measurement part is lower than the temperature at the bottom of the temperature measurement part.