CN201539920U - An adaptive air conditioner - Google Patents

Abstract

An adaptively adjustable air conditioner, the throttling system includes an expansion valve (101), a pressure transmission pipe (104), a temperature sensing pipe (105) and a compressor return pipe (106), and the expansion valve (101) is provided with a bellows cavity, the output end of the temperature sensing tube (105) is connected to the upper part of the bellows cavity of the expansion valve (101), and exerts force on the upper part of the diaphragm, and the pressure transmission tube (104) is connected to the membrane of the expansion valve (101) The lower part of the box cavity is connected, and force is applied to the lower part of the diaphragm. The bellows cavity controls the movement of the diaphragm according to the temperature and pressure changes of the compressor return air pipe (106), thereby controlling the valve opening of the expansion valve (101), and the expansion The valve (101) is respectively provided with an indoor connection (103) and an outdoor interface (102) connecting the indoor and outdoor heat exchangers; the utility model controls the liquid supply volume of the evaporator according to the working conditions of the air conditioner, so that the air conditioner can It can achieve good cooling or heating effect under various environmental conditions.

Description

An adaptive air conditioner

technical field

The utility model relates to the technical field of air conditioners in electrical equipment, in particular to an air conditioner which is self-adaptively adjusted according to changes in the environmental conditions where the air conditioner is located.

Background technique

The refrigerating system of existing air conditioner is made up of compressor, condenser, throttling part and evaporator, and throttling part generally all adopts capillary tube.

The advantages of the capillary as a throttling part are: simple structure, convenient manufacture, low cost, and not easy to damage, but the aperture and length of the capillary are determined according to certain environmental conditions, and it cannot adapt well when the load of the evaporator changes. , if the evaporating pressure drops, it is easy for the refrigerant liquid to enter the compressor, and if the evaporating pressure rises, it will cause insufficient liquid supply to the evaporator, affecting the full use of the cooling capacity of the system. Both of these situations will affect the performance of the air conditioner. Use quality and service life.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an air conditioner that can be self-adaptively adjusted according to changes in environmental conditions. It can achieve good cooling or heating effect under various environmental conditions.

In order to solve the above-mentioned technical problems, the technical solution of the utility model is: an adaptively adjustable air conditioner, the throttling system includes an expansion valve, a pressure transmission pipe, a temperature sensing pipe and a compressor air return pipe, and the expansion valve of the valve is set There is a bellows cavity, the output end of the temperature sensing tube is connected to the upper part of the bellows cavity of the expansion valve, and the force is applied to the upper part of the diaphragm, and the pressure transmission tube is connected to the lower part of the bellows cavity of the expansion valve, and the force is applied to the In the lower part of the diaphragm, the bellows cavity controls the action of the diaphragm according to the temperature and pressure changes of the return air pipe of the compressor, thereby controlling the valve opening of the expansion valve. The expansion valve is respectively provided with an indoor interface and an external heat exchanger. outdoor interface.

The expansion valve is arranged outside the room of the air conditioner or inside the room of the air conditioner.

There are one or more expansion valves.

The beneficial effect of the utility model relative to the prior art is:

Compared with the prior art, the air conditioner with bidirectional thermal expansion valve provided by the utility model has the following advantages: the superheat degree of the evaporator of the air conditioner will change due to changes in environmental conditions, and the utility model can detect the overheating of the evaporator by sensing the overheating of the evaporator. The heat is controlled by adjusting the opening of the two-way thermal expansion valve, so that the evaporator can supply liquid reasonably, so that the refrigeration system is in a normal working state, and the quality and service life of the air conditioner are guaranteed.

Description of drawings

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural representation of the utility model.

Detailed ways

Referring to Fig. 1, the utility model is an air conditioner adaptively adjusted according to changes in environmental conditions, and its throttling system includes an expansion valve 101, a return air pressure transmission pipe 104, a temperature sensing pipe 105, a compressor return air pipe 106, and an expansion valve 101 A bellows cavity is provided, the output end of the temperature sensing tube 105 is connected to the upper part of the bellows cavity of the expansion valve 101, and a force is applied to the upper part of the diaphragm, and the pressure transmission tube 104 is connected to the lower part of the bellows cavity of the expansion valve 101, and a force is applied At the lower part of the diaphragm, the bellows cavity controls the movement of the diaphragm according to the temperature and pressure changes of the compressor return air pipe 106, thereby controlling the valve opening of the expansion valve 101, so the expansion valve 101 is also called a two-way thermal expansion valve, expansion valve 101 is respectively provided with an indoor interface 103 and an outdoor interface 102 connecting the indoor and outdoor heat exchangers

The working principle of the utility model is:

When the environmental condition of the air conditioner is stable, the upward and downward forces in the bellows cavity of the two-way thermal expansion valve 101 are in a balanced state, and the opening of the valve remains unchanged. When the environmental condition of the air conditioner changes and the load of the evaporator increases, the superheat degree of the return air increases, and the temperature felt by the temperature sensing tube 105 increases accordingly, and the downward force in the bellows chamber of the two-way thermal expansion valve 101 increases. , the opening of the valve also increases, and the amount of liquid refrigerant supplied to the evaporator increases. Conversely, when the environmental condition of the air conditioner changes and the load of the evaporator decreases, the degree of superheat of the return air decreases, the temperature felt by the temperature sensing tube 105 decreases accordingly, and the downward force in the bellows cavity of the two-way thermal expansion valve 101 decreases. , the opening of the valve is also reduced, and the amount of liquid refrigerant supplied to the evaporator is reduced.

The working process of the present utility model is:

When the air conditioner is in cooling operation, the high-temperature and high-pressure refrigerant liquid from the outdoor heat exchanger flows into the two-way thermal expansion valve 101 to throttle through the outdoor interface 102, and then enters the indoor heat exchanger through the indoor interface 103 to evaporate.

When the air conditioner is in heating operation, the high-temperature and high-pressure refrigerant liquid from the indoor heat exchanger flows into the two-way thermal expansion valve 101 to throttle through the indoor interface 103, and then enters the outdoor side heat exchanger through the outdoor interface 102 to evaporate.

Claims (3)

1. the air-conditioner regulated of a self adaptation, throttle system comprises expansion valve (101), pressure transfer tube (104), temperature-sensitive pipe (105) and compressor return air pipe (106), it is characterized in that described expansion valve (101) is provided with the bellows chamber, the output of described temperature-sensitive pipe (105) is connected with the top, bellows chamber of expansion valve (101), and the power that applies is in diaphragm top, described pressure transfer tube (104) is connected with the bottom, bellows chamber of expansion valve (101), and the power that applies is in the diaphragm bottom, the bellows chamber changes the action of controlling diaphragm according to the temperature and pressure of compressor return air pipe (106), thereby the valve opening size of control expansion valve (101), expansion valve (101) is respectively equipped with in the junction chamber, the indoor interface (103) of external heat exchanger and outdoor interface (102).

2. the air-conditioner that self adaptation according to claim 1 and 2 is regulated is characterized in that described expansion valve (101) is arranged on the air conditioner chamber outside or air conditioner chamber inboard.

3. the air-conditioner that self adaptation according to claim 3 is regulated is characterized in that described expansion valve (101) is provided with one or more.

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