Water dispensers are commonly used as drinking props in companies and families. The main reason is that the tap water in China does not meet the standard of direct drinking, so many people will prepare a water dispenser at home for their own health. Now let's take a look at the circuit diagram of the water dispenser and the cooling and heating principles of the water dispenser.
Water dispenser circuit diagram
General water dispensers use semiconductor direct-cooled cold and hot water. There are constant temperature water and hot water available on the water dispenser. There are two ways to feed water. Because it is too difficult to dissect the circuit diagram of the water dispenser, we will directly draw the diagram above. The circuit diagram of the water dispenser is very simple. As long as you remember the physics of junior high school, you can basically understand the circuit principle of this diagram. If you can't understand it, you should pick up your textbook and review it again. Knowing the circuit diagram of the water dispenser, it is also easier to maintain the circuit in case of instability or failure. At least, it is not difficult for you to figure out the cause of the failure.
Refrigeration and heating principle of water dispenser in the circuit diagram of water dispenser
1、 Refrigeration principle of water dispenser
1. Press the cooling switch, the power is connected, the cooling green indicator light is on, and the compressor starts to run.
2. The compressor absorbs the vaporized refrigerant steam in the evaporator, compresses it into high temperature and high pressure gas, and sends it to the condenser.
3. The steam dissipates heat to the outside through the condenser, and then becomes liquid through high pressure due to condensation. Through capillary throttling and depressurization, it flows into the evaporator, which reduces the water temperature, and the refrigerant liquid is sucked back by the compressor, so as to realize the purpose of cooling through continuous circulation.
4. When the water temperature drops to the set temperature, the sensor sends a signal to automatically switch the power supply and turn into the insulation state.
5. After power failure, the water temperature and water temperature will start to rise slowly. When the temperature reaches a certain temperature, the sensor will send a signal to automatically cut in the power supply and the compressor will run. This will keep the water temperature at a low temperature.
2、 Heating principle of water dispenser
1. Connect the power supply, the heating circuit is connected, and the electric heating pipe is heated.
2. When the water temperature reaches the set temperature, the sensor sends a signal to automatically switch the power supply.
3. After power failure, the water temperature gradually drops, the sensor sends a signal, automatically cuts into the power supply, and the electric heating tube heats up. The basic principle is the same as refrigeration, so that the water temperature is kept between 85-95 ℃. The protection device will automatically fuse or disconnect the circuit in case of overload, which plays a safety protection role.