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Air conditioner circuit board

By:PCBBUY 04/28/2021 10:07

An air conditioner is an air conditioner. Refers to the use of artificial means, the building or structure of the ambient air temperature, humidity, flow rate and other parameters for adjustment and control of equipment.

Generally, it includes several parts such as cold source/heat source equipment, cold and hot medium transmission and distribution system, terminal device and other auxiliary equipment. Mainly includes, refrigeration host, water pump, fan and pipeline system.The terminal unit is responsible for the specific treatment of the air state by using the heat and cold transferred to make the air parameters of the target environment meet certain requirements.

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Composition of air conditioning

The structure of air conditioning includes: compressor, condenser, evaporator, four-way valve, one-way valve capillary assembly, etc.

The compressor

The working process of an intertooth volume pair specified in an air conditioning compressor. The side of the female screw and the male screw are compressed to meet each other. This side is called the high pressure area. Instead, the screw turns to a side that diverges from each other, and the volume between the teeth expands and is in the inspiratory stage, known as the low pressure area. These two areas are separated by a contact line between the tooth surfaces of the female screw and the male screw. It can be approximately considered that the plane in which the two screw axes are located is the interface between high and low pressure zones.

Compression refrigerants, such as freon, become liquid. Then it is cooled by the endothermic phenomenon of the liquid changing into the gaseous state at atmospheric pressure.

The density of air is very small. You take a syringe for an injection. Fill a syringe with air, plug the outlet with your hand, and push the syringe to compress the air. A gas can be compressed by a third of its volume with a needle.

The condenser

Compressor suction from the evaporator working medium low pressure steam, after pressure into the condenser, cold high pressure of the liquid condensed in the condenser, the throttle valve throttle, become low pressure liquid, into the evaporator, the evaporator of heat to evaporate and become a low pressure steam, thus complete the refrigeration cycle. For some applications, the gas must pass through a long tube, usually coiled into a solenoid, to allow the heat to escape into the surrounding air. Heat-conducting metals such as copper are often used to transport steam. In order to improve the efficiency of the condenser, heat sinks are often attached to the pipes to accelerate the heat dissipation. A radiator fin is a flat plate made of good heat-conducting metal.

The evaporator

The evaporator is the tube that's inside the chamber, and it's covered with fins. A device for concentrating or precipitating grains from a solution by heating. It is mainly composed of heating chamber and evaporation chamber. The heating chamber provides the heat needed to evaporate the liquid, causing it to boil and vaporize; The evaporation chamber completely separates the gas-liquid two phases. The vapor produced in the heating chamber contains a large amount of liquid foam. When the vapor chamber is in a larger space, the liquid can be separated from the vapor by condensing or defaming apparatus.

Four-way valve

Four-way valve, hydraulic valve term, is a control valve with four oil ports. Four-way valve is the indispensable parts in refrigeration equipment, its working principle is that when the power is solenoid coil, pilot valve on the right side of the compression spring driven her left shift, high pressure gas entering into the right side piston cavity after the capillary (1), on the other hand, the left side of the piston chamber gas discharge, due to the existence pressure difference on both ends of the piston, the piston and the slide valve left shift, the exhaust pipe with the takeover, outdoor two root over are interlinked, form a refrigeration cycle.

Working principle of air conditioning

Air conditioning is divided into single cooling air conditioning and air conditioning, the working principle is the same, the refrigerant commonly used before air conditioning is freon. The characteristic of freon is that when it changes from gas to liquid, it releases a lot of heat. And when you go from a liquid to a gas, you absorb a lot of heat. Air conditioning is designed on this principle.

The compressor compresses the gaseous refrigerant into the gaseous refrigerant of high temperature and high pressure, and then sends it to the condenser (outdoor machine) for heat dissipation to become the liquid refrigerant of normal temperature and high pressure, so what the outdoor machine blows out is the hot air.

And then to the capillary, into the evaporator (indoor machine), because the evaporator refrigerants from capillary reached space suddenly increases, pressure decreases, and the liquid will vaporize refrigerants, into a gaseous cryogenic refrigerants, to absorb a lot of heat, the evaporator will become cold, indoor machine of the fan will indoor air blows from the evaporator, so indoor machine out of the cold wind is blowing; The water vapor in the air will condense into water drops when it meets the cold evaporator and flows out along the water pipe, which is why the air conditioner will give water.

When heating, there is a component called the four-way valve, so that the refrigerant flow direction in the condenser and evaporator and the opposite of the refrigeration, so when the heating is cold air blowing outside, indoor machine blowing is hot air.

In fact, I learned from junior high school physics that when you liquefy (a gas to a liquid) you have to expel heat and when you vaporize (a liquid to a gas) you have to absorb heat.

Working principle of environmental protection air conditioning:

With circulating pump continuously put out of the water in the tank, and through the cloth evenly spray water system on the evaporation filter layer, outdoor hot air into the evaporative cooling medium, CELdek in evaporative cooling medium (special material of the honeycomb filter layer, let the cooling effect is more ideal, Sweden's high-tech patent products) and water in heat exchange, due to water evaporation heat and cool the cool and refreshing, clean by low noise fan pressurized air into indoor, make indoor to outdoor hot air, so as to achieve the aim of indoor temperature.

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