A dehumidification electronic expansion valve for an air conditioning system

Abstract

The invention discloses a dehumidification electronic expansion valve for an air-conditioning system, which belongs to the field of electronic expansion valves and solves the problems of high working noise and poor valve opening performance of the existing dehumidification electronic expansion valve. The dehumidification electronic expansion valve of the present invention includes a valve body, The valve needle and the driving device for driving the valve needle to move. The dehumidification electronic expansion valve also includes a gear reduction mechanism, a slider and a limit device. The valve body is provided with an inlet, a small valve port and a large valve body. The valve port, the limiting device is used to limit the slider, the small valve port and the large valve port are connected through a capillary tube, the valve needle is used to open and close the small valve port, and the small valve port is opened , the limit device moves away from the slider, and the gear reduction mechanism drives the slider to open the large valve port, which effectively improves the noise problem and improves the valve opening performance, thereby ensuring the stable and reliable operation of the air conditioning system .

Description

technical field [0001] The invention relates to the field of electronic expansion valves, in particular to a dehumidifying electronic expansion valve for an air conditioning system. Background technique [0002] In the air conditioning system with dehumidification function, the indoor heat exchanger is usually composed of the first heat exchanger and the second heat exchanger, and a dehumidification electronic expansion valve is installed between the two heat exchangers. When the system is in dehumidification operation, the dehumidification electronic expansion valve is fully open, so that the two heat exchangers can function as a whole. The condenser functions so that the second heat exchanger on the low-pressure side functions as an evaporator. In actual use, since the dehumidification electronic expansion valve is installed on the indoor unit, there is a high requirement for noise, but when the existing dehumidification electronic expansion valve is opened, the impact of...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dehumidification electronic expansion valve for an air-conditioning system, which can effectively improve the noise problem and improve the valve opening performance, thereby ensuring the stable and reliable operation of the air-conditioning system

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