Analysis on the market of intelligent air-conditioning thermostat
Abstract：For a long time, in the electronics industry, thermostats are developing rapidly. Because it can flexibly control the start-stop and indoor temperature of the air conditioning units in each area, and can save construction space and engineering costs, the fan coil unit (FCU) plus fresh air air conditioning system has always been the main business of guest rooms and business room rentals. It is a semi-centralized air-conditioning system type for buildings such as office buildings**.
For a long time, in the electronics industry, thermostats are developing rapidly. Because it can flexibly control the start and stop of the air conditioning units in each area and the indoor temperature, and can save construction space and engineering costs, the fan coil unit (FCU) plus fresh air air conditioning system has always been a hotel and restaurant whose main business is guest room and business room rental. It is a semi-centralized air-conditioning system type for buildings such as office buildings**. The room air-conditioning thermostat is the key to controlling the cooling/heating of the terminal device-the fan-coil unit (FCU), realizing the temperature control and energy-saving operation of the compartment.
The ordinary fan-coil air-conditioning thermostat is basically an independent closed-loop temperature adjustment system, which is mainly composed of a temperature sensor, a two-position controller, a temperature setting mechanism, a manual three-speed switch, and a heat and cold switch device. Its control principle is that the air-conditioning thermostat generates a two-position control signal according to the comparison result of the room temperature measured by the temperature sensor and the set value, and controls the switch of the electric water valve (two-way valve or three-way valve) of the cold and hot water circulation pipeline, namely Adjust the air supply temperature (cooling capacity) by cutting off and opening the water circulation in the coil.
** Generation air-conditioning thermostats are mainly electrical products. The temperature sensor of the air-conditioning thermostat adopts bimetal or pneumatic temperature bulb. The temperature is set by adjusting the pre-tightening force through the "given temperature plate". The three-speed switch of the fan and The seasonal switch is a splash type mechanical switch. This kind of air-conditioning thermostat products generally have problems such as "temperature setting index value is too thick", "time constant is too large", "mechanical switch is easy to damage" and so on.
**The air conditioner thermostat of the generation is an electronic product, the temperature sensor adopts thermistor or thermal resistance, the temperature setting and wind speed switch of some products realize the human-computer interaction interface through the touch key and the LCD screen, and the cold and heat switch is automatically completed. Operational amplifier circuit and switch circuit realize dual-position adjustment. This kind of intelligent air-conditioning thermostat products improve the human-computer interaction interface and solve the problems of "temperature setting index value is too thick", but there are still "low control accuracy", "large time constant", and "complex operation" "And other issues.
At present, domestic and foreign manufacturers are researching and developing the third-generation intelligent room temperature air-conditioning thermostat. Each manufacturer actively responds to national policies and uses new control models and CNC chips to achieve intelligent control. Nowadays, domestic manufacturers have produced intelligent room temperature air-conditioning thermostats, and they have been used in actual projects. This production drives the development of the electronics industry.
The ordinary fan-coil air-conditioning thermostat is basically an independent closed-loop temperature adjustment system, which is mainly composed of a temperature sensor, a two-position controller, a temperature setting mechanism, a manual three-speed switch, and a heat and cold switch device. Its control principle is that the air-conditioning thermostat generates a two-position control signal according to the comparison result of the room temperature measured by the temperature sensor and the set value, and controls the switch of the electric water valve (two-way valve or three-way valve) of the cold and hot water circulation pipeline, namely Adjust the air supply temperature (cooling capacity) by cutting off and opening the water circulation in the coil.
** Generation air-conditioning thermostats are mainly electrical products. The temperature sensor of the air-conditioning thermostat adopts bimetal or pneumatic temperature bulb. The temperature is set by adjusting the pre-tightening force through the "given temperature plate". The three-speed switch of the fan and The seasonal switch is a splash type mechanical switch. This kind of air-conditioning thermostat products generally have problems such as "temperature setting index value is too thick", "time constant is too large", "mechanical switch is easy to damage" and so on.
**The air conditioner thermostat of the generation is an electronic product, the temperature sensor adopts thermistor or thermal resistance, the temperature setting and wind speed switch of some products realize the human-computer interaction interface through the touch key and the LCD screen, and the cold and heat switch is automatically completed. Operational amplifier circuit and switch circuit realize dual-position adjustment. This kind of intelligent air-conditioning thermostat products improve the human-computer interaction interface and solve the problems of "temperature setting index value is too thick", but there are still "low control accuracy", "large time constant", and "complex operation" "And other issues.
At present, domestic and foreign manufacturers are researching and developing the third-generation intelligent room temperature air-conditioning thermostat. Each manufacturer actively responds to national policies and uses new control models and CNC chips to achieve intelligent control. Nowadays, domestic manufacturers have produced intelligent room temperature air-conditioning thermostats, and they have been used in actual projects. This production drives the development of the electronics industry.
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