What kind of temperature controller can be divided into the principle?
Temperature switch, also called the temperature controller, uses the temperature and cold expansion technology of temperature sensing liquid to achieve self -regulation. When the control temperature is increased, the thrust generated by the expansion of the sensory liquid will be small to reduce the output Tamper-proof Thermostat temperature; when the control temperature is reduced, the temperature sensor shrinks. , So that the controlled temperature can be achieved and kept within the set temperature range.
The temperature controller has mechanical and electronic format
The mechanical type uses two layers of thermal expansion coefficients to press together. When the temperature changes, his curvature will change. When bending to a certain degree, connect (or disconnect) circuit to make the refrigeration (or heating) device. Work, electronic -type temperature sensing devices such as thermocouple, platinum resistance, etc., transform temperature signals into electrical signals, control relays through single -chip microcomputers, PLC and other circuits to make heating (or refrigeration) equipment work (or stop), and mercury thermometer. Type, the temperature will be connected and the mercury can be connected
Classification of temperature controller
I. Suddenly jump temperature controller: The types of various sudden jump temperature controllers are called KSD, and common ones such as KSD301, KSD302, etc. This temperature controller is a new product of the dual metal shelter temperature controller. When the electric heating goods are overheated, it is usually used in series with the hot -melt fracture, and the jump temperature controller is used as a first -level maintenance. When the hot -melting fracture device is lost or invalidated, the electric heating element is over -temperature, as a secondary maintenance self -maintenance, effectively avoiding the burning of the electric heating element and the fire accident caused by it.
Second, liquid liquid temperature controller: It is the physical phenomenon (volume change) of the substance (usually liquid) in the temperature controller when the temperature of the control target is changed The membrane box that connects the Wenbu is swollen or contracted. According to the principle of leverage, the stock switch is broken, and the temperature control temperature of the constant temperature intention is accurate, stable and stable, small, small, small, and small functional features such as controlling temperature control. The liquid -rising temperature controller is mainly used for temperature control occasions such as the home appliance industry, electric heating equipment, and refrigeration industry.
3. Pressure temperature controller, the temperature controller changes the temperature packaged and capillary of the temperature -sensitive work quality, transforms the change of the control temperature into a change in space pressure or volume. Elastic components and rapid instantaneous tissues are actively closed to reach the intention of actively controlling temperature. It consists of three compositions such as the temperature department, the main part of the temperature setting, the micro -switch of the open and closing, or the active wind door. Pressure temperature controller is suitable for the refrigerator (such as refrigerator freezer, etc.) and heating device.
Fourth, electronic temperature controller, electronic temperature controller (resistor) is used to measure the method of temperature sensing. Generally, white gold wire, copper wire, tungsten wire, and thermal resistance are used as the temperature measurement resistance. These resistors are used. Each has its own excellent points. Most household air conditioners usually use thermal resistance.