Temperature controller

Abstract

The invention discloses a temperature controller, and the temperature controller comprises a base body, a heating groove is formed in the upper end of the base body, a heating wire is arranged in the heating groove, and a working platform is arranged at the lower end of the base body; a bimetallic strip, a movable contact piece, a static contact piece and a ceramic rod are arranged on the working platform, and the static contact piece is electrically connected with the heating wire; the ceramic rod is arranged on the working platform in a sliding mode, the movable contact piece is elastically arranged, one end of the movable contact piece is fixedly connected with the working platform, the other end of the movable contact piece is arranged close to the static contact piece, the bimetallic strip comprises a positioning part and a deformation part, the positioning part is fixedly connected with the working platform, the deformation part abuts against the ceramic rod, the working platform is further provided with an elastic clamping piece, the end portion of the elastic clamping piece abuts against the ceramic rod, the ceramic rod is provided with a clamping opening, and the base body is further provided with a tripping piece used for enabling the elastic clamping piece to be separated from the clamping opening. The device is simple in structure and reasonable in layout, repeated dry burning of the device can be effectively prevented, and safety and health of drinking water are guaranteed.

Description

technical field [0001] The invention relates to the technical field of temperature control devices, in particular to a temperature controller. Background technique [0002] Thermostat refers to a series of automatic control elements that physically deform inside the switch according to the temperature change of the working environment, thereby producing some special effects, and generating conduction or disconnection actions. It is also called a temperature control switch and a temperature protector. , Temperature controller, referred to as thermostat. Thermostats have a wide range of applications. According to different types of thermostats, they are used in many products such as home appliances, motors, refrigeration or heating. Existing thermostats usually use a bimetal structure. Since the thermal expansion coefficients of each component layer are different, when the temperature reaches a fixed value, the deformation of the active layer is greater than that of the passi...

AI Technical Summary

Problems solved by technology

Existing thermostats usually use a bimetal structure. Since the thermal expansion coefficients of each component layer are different, when the temperature reaches a fixed value, the deformation of the active layer is greater than that of the passive layer, so that the bimetal as a whole will move toward the If one side of the passive layer is bent, the curvature of the composite material will change to produce deformation, thereby realizing the separation of the dynamic and static contacts and the control of the open circuit. By resetting itself or the external structure and contacting again, the access is controlled. However, the existing heater, especially the structure of the water heater, after the temperature reaches the requirement, the bimetal is deformed, so that the water heater stops heating. At this time, if the heating kettle does not Take it away, after the bimetal sheet cools down, it will make the moving and static contacts stick together again, and turn on the heater to heat up again, so as to repeatedly dry the kettle. In order to ensure the safety and health of drinking water, it is usually set to prevent repeated drying The structure of burning is to limit the bimetal sheet to make the dynamic and static contacts fit together again after cooling down, but these structures are relatively complicated, and the overall structure is bloated, which is not conducive to improving the use effect of the product

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