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Analysis of intelligent air conditioner temperature controller Market
来源: | 作者:electronics-101 | 发布时间: 2016-05-07 | 653 次浏览 | 分享到:
The thermostat has been developing rapidly in the electronics industry for a long time. Due to the regional air conditioning unit can flexibly control the start and stop of the indoor temperature, and can save space and cost, fan coil plus fresh air system (FCU) has been in the guest rooms and business to rent industry, hotels and office buildings and other buildings preferred semi central air conditioning system type.
       The thermostat has been developing rapidly in the electronics industry for a long time. Due to the regional air conditioning unit can flexibly control the start and stop of the indoor temperature, and can save space and cost, fan coil plus fresh air system (FCU) has been in the guest rooms and business to rent industry, hotels and office buildings and other buildings preferred semi central air conditioning system type. The room air conditioner temperature controller is the key to control the cooling and heat of the terminal unit fan coil unit (FCU), and realize the temperature control and energy saving operation of the compartment.
Ordinary fan coil air conditioning thermostat basically is an independent closed loop temperature control system, mainly by the temperature sensor, a controller, a temperature setting mechanism, three speed manual switch and switching device composed of hot and cold. Its principle is to control air conditioning thermostat based on double control signal comparison results of temperature sensor measured at room temperature and the set value, the control of electric water valve and cold water circulation pipeline (two valve or a three-way valve switch is cut off) and open the way to the circulation of the coil, regulating air temperature (cooling capacity).
The first generation of air conditioning thermostat is mainly electrical products, air conditioning thermostat temperature sensor with double metal sheet or a pneumatic temperature package, through a given temperature adjustment for preload disc "to set the temperature conversion, three speed fan switch and switch on for season type mechanical switch gear. This kind of air conditioner temperature controller products generally exist such problems as too high temperature setting value, too large time constant, and easy damage of mechanical switch.
The next generation air conditioning thermostat for electronic products, the temperature sensor uses thermistor or thermal resistance, temperature and wind speed part of the switch through the touch keys and LCD screen to realize man-machine interface, and automatically switch, operational amplifier circuit and switching circuit to realize the double position control. This kind of intelligent air conditioning thermostat products improve the man-machine interface to solve the problem of coarse temperature setting index value ", but there are still" precision "and" time constant "and" complicated "and other issues.
At present, domestic and foreign manufacturers are developing the third generation intelligent room temperature air conditioning thermostat manufacturers, a positive response to the national policy, the application of new control model and numerical control chip to realize intelligent control. Now, domestic manufacturers have produced intelligent air-conditioning thermostat, and has been applied to the actual project. This production drives the development of electronic industry.