Electronic expansion valve control method and air conditioner

By dynamically adjusting the opening update cycle of the electronic expansion valve, the problem of the electronic expansion valve opening adjustment not conforming to reality is solved, thus realizing the safe and reliable operation of the air conditioner under different loads and improving comfort.

CN117450616BActive Publication Date: 2026-07-10GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2023-10-23
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the existing technology, the opening adjustment of the electronic expansion valve does not conform to reality, which leads to excessive frequency reduction of the compressor, affecting comfort and energy saving effect, and shortening the service life of the electronic expansion valve.

Method used

By acquiring the outdoor ambient temperature and compressor operating frequency, and comparing them with preset parameters, the opening update cycle of the electronic expansion valve is dynamically adjusted, including a first-level cycle of C0 or H0, a second-level cycle of C1 or H1, and a third-level cycle of C2 or H2, to ensure the reasonable updating of the electronic expansion valve opening.

Benefits of technology

It achieves optimized updates of the electronic expansion valve opening under different working loads, ensuring safe and reliable system operation, improving comfort, and saving energy.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117450616B_ABST
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Abstract

The application provides an electronic expansion valve control method and an air conditioner, relates to the technical field of air conditioners, and solves the technical problem that the opening degree regulation of the electronic expansion valve does not conform to reality, causes the compressor to excessively reduce frequency, and reduces comfort or shortens the replacement period and affects the service life. The method comprises the following steps: acquiring an outdoor environment temperature T 外环实际 ; comparing the acquired outdoor environment temperature T 外环实际 with a set outer ring temperature T 外环设定 ; and based on the comparison result, performing adjustment on the opening degree period of the electronic expansion valve. The application is used for regulating the opening degree of the electronic expansion valve, can realize different update periods of the opening degree of the electronic expansion valve under different working loads of the air conditioner, guarantees safe and reliable operation of the system, improves comfort experience, and saves energy.
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