• 电子温控器的分类
  • 本站编辑:杭州博阳仪器仪表有限公司发布日期:2019.09.21
四,电子式温控器,电子式温度控制器(电阻式)是采用电阻感温的方法来测量的,一般采用白金丝、铜丝、钨丝以及热敏电阻等作为测温电阻,这些电阻各有其优确点。一般家用空调大都使用热敏电阻式。 电子式温度控制器具有稳定,体积小的优点,在21世纪越来越多的领域中得到使用。

The electronic temperature controller(resistive type) is measured using a resistive temperature method. Generally, Baijinsi, copper wire, tungsten wire, and semiconductor(thermistor, etc.) are used as thermal resistors. Each of these resistors has its own excellent point. Most sensors in home air conditioning are thermistor-sensitive
Divided by the principle of thermostat manufacturing, thermostat is divided into:
1. Jumping thermostat: The models of various jumping thermostat are collectively referred to as KSD, commonly known as KSD301, KSD302, etc.. The thermostat is a new product of bimetallic sheet thermostat, which is mainly used as a variety of thermal products. When overheated, it is usually used in series with a heat melt breaker. Jumping thermostat as primary protection. The heat fuse is used as a secondary protection to effectively prevent the burning of the electric heat element and the resulting fire accident when the sudden temperature controller fails or fails to cause the electric heat element to overheat.
Second, liquid temperature control: It is a physical phenomenon(volume change) that causes the material(usually liquid) in the temperature sense of the temperature control to produce corresponding thermal expansion and cooling when the temperature of the controlled object changes. The membrane box connected to the thermostat expands or contracts. With the principle of lever, it can drive the switch to break and reach the constant temperature. The temperature control type temperature controller has the characteristics of accurate temperature control, stable and reliable, small temperature difference between opening and stopping, large temperature control regulation range, and large overload current. Hydraulic temperature controller is mainly used in the appliance industry, electric and thermal equipment, refrigeration industry and other temperature control occasions.
Third, the pressure thermostat, the thermostat, converts the controlled temperature change into a change in spatial pressure or volume through the closed inner charged thermostat and the capillary, and passes through the elastic element and the fast transient mechanism when the temperature is set. Automatic closing of contacts to achieve automatic control of temperature. It consists of three parts: the temperature part, the temperature setting body part, the micro-switch that performs the opening and closing, or the automatic wind door. Pressure thermostats are suitable for refrigeration equipment(such as refrigerators, freezers, etc.) and heat generators.
The above are common mechanical thermostats.
Fourth, electronic thermostats, electronic temperature controllers(resistors) are measured using a resistive temperature method. Generally, Baijinsi, copper wire, tungsten wire, and thermistor are used as thermal resistors. Each of these resistors has its own excellent point. Most domestic air conditioners use thermistor resistance. Electronic temperature controllers have the advantages of stability and small size and are used in more and more fields in the 21st century.
Fifth, digital temperature controller: Digital electronic temperature controller is an accurate temperature detection controller, which can digitally quantify the temperature control. Thermostats generally use NTC thermal sensors or thermocouples as temperature detection elements. Its principle is to design NTC thermal sensors or thermocouples into the corresponding circuits. NTC thermal sensors or thermocouples change with temperature. The corresponding voltage current changes will be generated, and the changed voltage current will be detected, quantified and displayed through the microcontroller, and the corresponding control will be done. Digital temperature controller has the characteristics of high accuracy, good sensitivity, intuitive and convenient operation.
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