Provided is a thermostat including a diaphragm arranged on a core body that is inserted into a base. The assembly is closed at the top by a metallic cover and at the bottom by a flat lid. The thermostat also includes the core body presenting a cylindrical shape and is provided with two radially opposing projections and a guide hole, with the guide hole centrally arranged to receive a pin in a slidably manner; and the base, in an monolithic body, including: two walls in the form of a cylindrical arc, having collars on their top portions and together defining a cradle for said core body; and sides and faces that are adjacent to the sides. Projecting from said faces are terminals for electrical connection. The short terminal is coupled to a contact blade for contact with the long terminal. The blade is actuated by the pin, which is in turn actuated by the diaphragm. The terminals and the blade are co-injected with the base. Alternatively, the thermostat also includes a heater bias, formed by a pair of resistors in parallel.

A thermally responsive switch includes a heating element with a meandering portion formed of a metal plate. The meandering portion is bent twice with respect to reference axes extending in a longitudinal direction of a housing. The meandering portion includes an outer vertical portion that is perpendicular to an inner surface of a lid plate, an inner vertical portion that is perpendicular to the inner surface of the lid plate, and a middle vertical portion that is disposed between the outer vertical portion and the inner vertical portion and is perpendicular to the inner surface of the lid plate. The middle vertical portion has a narrow portion narrower than a width of the middle vertical portion. The narrow portion is provided on an end portion located in one side of the middle vertical portion where no other heating element exists among the two widthwise end portions of the middle vertical portion.

A device comprising a gate pad, a source pad and a passive actuator arranged to form a reversible mechanical and electrical connection between the gate pad and the source pad only if the temperature in the passive actuator exceeds a threshold value.

A thermal protection device, comprising: a first PTC device, arranged in a PTC circuit, and having a first input side, coupled to an input path of the PTC circuit, and having a first output side, coupled to an output path of the PTC circuit; a second PTC device, arranged in the PTC circuit, and having a second input side, coupled to the input path of the PTC circuit, and having a second output side, coupled to the output path of the PTC circuit; and a thermal link having a third input side, coupled to the first output side of the first PTC device and the second output side of the second PTC device, via the output path of the PTC circuit.

A phase change material switch device is provided. The phase change material switch device includes a phase change material, a first electrode electrically coupled to the phase change material, and at least one heater thermally coupled to the phase change material. An equalization device is configured to provide an impedance coupling between the first electrode and the phase change material. The impedance coupling varies over the phase change material.

A phase change material switch device is provided. The phase change material switch device includes a phase change material, a first electrode electrically coupled to the phase change material, and at least one heater thermally coupled to the phase change material. An equalization device is configured to provide an impedance coupling between the first electrode and the phase change material. The impedance coupling varies over the phase change material.

An externally-controllable thermal tripping device comprising a voltage dependent resistor including a voltage dependent resistor chip; a thermal tripper including a tripping electrode; and a controllable heating element. The tripping electrode is connected to an electrode of the voltage dependent resistor chip through a meltable welding material, and the controllable heating element is controlled by an external control device to generate heat and transmit generated heat to a commissure of said welding material to melt said welding material and electrically disconnect the tripping electrode from the voltage dependent resistor chip.

An externally-controllable thermal tripping device comprising a voltage dependent resistor including a voltage dependent resistor chip; a thermal tripper including a tripping electrode; and a controllable heating element. The tripping electrode is connected to an electrode of the voltage dependent resistor chip through a meltable welding material, and the controllable heating element is controlled by an external control device to generate heat and transmit generated heat to a commissure of said welding material to melt said welding material and electrically disconnect the tripping electrode from the voltage dependent resistor chip.

The present invention relates to the technical field of temperature controllers, and more particularly, to a backpack power-off reset temperature limiter, which comprises an insulating base, a first terminal, a second terminal, a power-receiving elastic piece and an arch-shaped temperature sensing sheet. The power-receiving elastic piece is arranged on the upper end surface of the insulating base. One end of the power-receiving elastic piece is fixedly connected with the first terminal, and the other free end of the power-receiving elastic piece is electrically connected with the second terminal. The two ends of the power-receiving elastic piece are respectively provided with a fixing clamping position that is clamped with an end part of the temperature sensing sheet, and the two sides of the power-receiving elastic piece are respectively provided with an assembly clamping position that is matched with the temperature sensing sheet.

The present invention relates to the technical field of temperature controllers, and more particularly, to a backpack power-off reset temperature limiter, which comprises an insulating base, a first terminal, a second terminal, a power-receiving elastic piece and an arch-shaped temperature sensing sheet. The power-receiving elastic piece is arranged on the upper end surface of the insulating base. One end of the power-receiving elastic piece is fixedly connected with the first terminal, and the other free end of the power-receiving elastic piece is electrically connected with the second terminal. The two ends of the power-receiving elastic piece are respectively provided with a fixing clamping position that is clamped with an end part of the temperature sensing sheet, and the two sides of the power-receiving elastic piece are respectively provided with an assembly clamping position that is matched with the temperature sensing sheet.