Working principle of air conditioner temperature controller

Working principle of air conditioner temperature controller In the use of our home air conditioners, the most important function is to ensure that our indoor temperature is maintained at a relatively comfortable degree, and the air conditioner temperature controller is a tool to help us achieve this. What is the principle of controlling the temperature of our air conditioner by air conditioner? Today I will introduce some working principles and functions of air conditioner temperature controller for everyone to understand. The temperature controller is an electric switch device that controls the temperature of the air-conditioned room. The temperature range in the air-conditioned room controlled by the temperature controller is generally 18℃-28℃. The temperature controllers commonly used in window air conditioners are based on the principle of pressure to push the contacts on and off. Its structure is composed of a bellows, a temperature sensing bag (test tube), an eccentric wheel, a micro switch, etc. to form a sealed induction system and a system for transmitting signal power. The function of the air conditioner circuit system is to control the normal and multi-function operation of the air conditioner and protect the normal operation of the compressor and fan motor. The components of the circuit system mainly include: temperature controller, thermal protector, main control switch, running capacitor, running capacitor of fan motor, etc. are fixed in the control box. Electric circuit diagram of single-cooling air conditioner. The role of the temperature controller is only to control the start and stop of the compressor. The working principle of the air conditioner temperature controller is: when the room temperature rises to the set temperature, the temperature sensing agent gas in the capillary tube and the bellows expands, causing the bellows to extend and overcome the elastic force of the spring to connect the switch contact. The compressor runs and the system cools. When the room temperature drops to the set temperature again, the temperature sensor gas shrinks, the bellows shrinks and the spring acts together, and the switch is placed in the off position to cut off the compressor motor circuit. With this repeated action, the purpose of controlling the room temperature is achieved. 　　The temperature controller is an electric switch device that controls the temperature of the air-conditioned room. The temperature range in the air-conditioned room controlled by the temperature controller is generally 18℃-28℃. The temperature controllers commonly used in window air conditioners are based on the principle of pressure to push the contacts on and off.

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Working principle of air conditioner temperature controller

In the use of our home air conditioners, the most important function is to ensure that our indoor temperature is maintained at a relatively comfortable degree, and the air conditioner temperature controller is a tool to help us achieve this. What is the principle of controlling the temperature of our air conditioner by air conditioner? Today I will introduce some working principles and functions of air conditioner temperature controller for everyone to understand.

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. 　　Here are two formulas involved: 　　①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. 　　② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. 　　 So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. 　　 Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 　　 2. Leakage 　　During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. 　　Why does the electric leakage cause the MCB to trip? There are two situations. 　　 ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. 　　②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. 　　How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. 　　 ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. 　　②Measure whether the output current exceeds the standard. 　　 So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

06/20/2020

The main reason for the slow heating of air conditioners

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06/20/2020

How to properly clean the air conditioner yourself

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06/18/2020

The principle characteristics of air conditioner remote controller

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