Patent ID: 7663467
Filing Date: 2010-02-16
Classification: H01H

Abstract:
1. A thermostat device, comprising a plurality of manually resettable thermostat units arranged in a stack, said manually resettable thermostat units acting at different temperature ranges, each said manually resettable thermostat unit comprising a thermoconducting top cover, a bottom cover, an intermediate structure set in between said thermoconducting top cover and said bottom cover, and a smoothly arched bimetal snap-action spring plate for switching on/off a circuit subject to change in temperature, wherein each said manually resettable thermostat unit comprises a center push rod inserted axially slidably through the respective intermediate structure, and the smoothly arched bimetal snap-action spring plate, thermoconducting top cover and bottom cover of each said manually resettable thermostat unit each have a center through hole for the passing of the respective center push rod; the center through hole of the thermoconducting top cover of one lower manually resettable thermostat unit allows the center push rod of the adjacent upper manually resettable thermostat unit to pass such that said manually resettable thermostat units work individually at a respective different temperature range and are simultaneously manually resettable; said manually resettable thermostat units are arranged in a stack in such an order that the manually resettable thermostat unit that is disposed at a lower side acts at a relatively lower temperature range than the manually resettable thermostat unit that is disposed at an upper side.