Temperature control circuit, temperature control method and temperature control device for air conditioner

By using a dual-throttling element and compressor frequency regulation in the air conditioner, the problem of reduced efficiency caused by the mixing of hot and cold air in the air conditioner is solved, and rapid and accurate control of the supply air temperature is achieved, meeting the requirements of high-precision applications.

CN116182318BActive Publication Date: 2026-06-26QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD
Filing Date
2022-12-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing air conditioners use return air temperature control, which results in the mixing of hot and cold air, reducing heating or cooling efficiency and making it impossible to quickly and accurately reach the user's target temperature. This makes them unsuitable for locations with high requirements for outlet air temperature accuracy.

Method used

The temperature control method employs dual throttling elements and compressor frequency regulation. The first throttling element and compressor frequency are used to initially adjust the air supply temperature, and then the second throttling element is used for precise adjustment to ensure that the air supply temperature quickly approaches and steadily reaches the target temperature.

Benefits of technology

It achieves precise temperature control of the air conditioner, enabling the air supply temperature to quickly and accurately reach the target temperature, which is suitable for places with high temperature accuracy requirements.

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Abstract

The application discloses a temperature control circuit, a temperature control method and a device of an air conditioner. The temperature control method is applied to the temperature control circuit and comprises the following steps: determining a target temperature of the air conditioner; determining a current air supply temperature of the air conditioner; determining a first throttling element valve step and a compressor frequency according to the current air supply temperature and the target temperature; determining a first air supply temperature according to the first throttling element valve step and the compressor frequency; when the first air supply temperature meets a first condition; determining a second throttling element valve step according to the first air supply temperature and the target temperature; determining a second air supply temperature according to the second throttling element valve step; and maintaining a current state of the air conditioner to run when the second air supply temperature meets a second condition.
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