Two-path output manual outage reset temperature controlled switch

Abstract

A two-path output manual outage reset temperature controlled switch is provided with a bimetal strip, a push rod which is perpendicular to the bimetal strip is arranged at the free end of the bimetal strip, and the other end of the push rod is connected with a first elastic sheet. The surfaces of the two sides, opposite to the free end, of the first elastic sheet are provided with movable contacts, a first stationary contact corresponding to the movable contacts is arranged at one end of a first output terminal, and a second stationary contact corresponding to the movable contacts is arranged at one end of a second output terminal. The other end of the first output terminal and the other end of the second output terminal are output ends, and the output ends are used for being connected with a first load circuit and a second load circuit respectively. A PTC heating element is arranged at the output end of the first output terminal, and the PTC heating element is electrically connected with the first elastic sheet through a second elastic sheet. According to the two-path output manual outage reset temperature controlled switch, by the aid of the PTC heating element, after the load circuits are disconnected due to overtemperature overloading, the load circuits can only be reset in a manual mode, and therefore the operational reliability of two output currents of the temperature controlled switch and the security of electricity loads are guaranteed.

Description

【Technical field】 [0001] The invention relates to a temperature control switch, in particular to a two-way output manual power-off reset temperature control switch. 【Background technique】 [0002] Temperature control switches are widely used in various electronic devices to control the temperature of the electronic devices within a specified range. When the temperature of the electronic equipment reaches the set temperature, the contacts of the temperature control switch are closed or opened to realize the on-off of the circuit, thereby realizing temperature protection and normal operation of the electronic equipment. For example, disinfection cabinets, the existing disinfection cabinets generally use relays and single-output thermostats as circuit control switches, and the switching of circuit functions is realized by closing and disconnecting the relays. The typical circuit structure is as follows: figure 1 As shown: the input terminal of relay KJ1 is connected to the pow...

AI Technical Summary

Problems solved by technology

In the existing circuit structure, only one of the working circuits needs to work normally at the same time, and when the temperature reaches the set temperature, the circuit needs to be kept in the state of the second load circuit 30. If the relay KJ1 is used for control, it will not only It is necessary to set the time timer S1 and the temperature controller S2, which makes the wiring installation more troublesome

In addition, after the ambient temperature drops, the existing circuit structure will automatically reset the temperature controller S2 and the relay KJ1 to the original state, that is, communicate with the first load circuit, so that it cannot meet the use requirements

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