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Control method of electronic expansion valve, air conditioner and computer readable storage medium

A technology of an electronic expansion valve and a control method, which is applied to the control field of air conditioners and computer-readable storage media and electronic expansion valves, can solve the problems of low heating energy efficiency, too large or too small opening of one-to-many air conditioners, etc. The effect of improving energy efficiency, reasonable adjustment and improving comfort

Inactive Publication Date: 2018-12-21
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a control method for an electronic expansion valve, an air conditioner and a computer-readable storage medium, which solves the technical problem of low heating energy efficiency of one-drag multi-air conditioner in the prior art, and realizes the indoor The opening degree of the electronic expansion valve corresponding to the machine can avoid the situation that the opening of the electronic expansion valve is too large or too small, and can effectively control the refrigerant flow rate of the indoor unit in the shutdown state, improve the comfort of the indoor environment, and prevent the air conditioner from heating. Refrigerant accumulation in the first indoor unit in the off state, thereby improving the energy efficiency of the air conditioner

Method used

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  • Control method of electronic expansion valve, air conditioner and computer readable storage medium
  • Control method of electronic expansion valve, air conditioner and computer readable storage medium
  • Control method of electronic expansion valve, air conditioner and computer readable storage medium

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no. 1 example

[0086] Based on the first embodiment, the second embodiment of the control method of the electronic expansion valve of the present invention is proposed, referring to image 3 , in this embodiment, step S400 includes:

[0087] Step S410, determining an average temperature corresponding to the second temperature, and calculating a temperature difference between the first temperature and the average temperature;

[0088] Step S420 adjusts the opening degree of the first electronic expansion valve based on the temperature difference.

[0089] In this embodiment, under normal circumstances, multiple indoor units that start running are stored in the one-to-many system, and when the second indoor unit includes multiple indoor units, the second temperature includes the temperature of the heat exchangers of the multiple indoor units. , therefore, when the first temperature and the second temperature are obtained, the average temperature corresponding to the second temperature is calc...

no. 7 example

[0123] Based on the above embodiments, the seventh embodiment of the control method of the electronic expansion valve of the present invention is proposed, referring to Figure 8 In this embodiment, the control method of the electronic expansion valve further includes:

[0124] Step S500, when it is detected that there is a third indoor unit whose operating state changes among the plurality of indoor units, obtain a fourth preset opening degree corresponding to the operating state of the third indoor unit;

[0125] Wherein, the change of the running state means that the indoor unit enters the running state from the shutdown state, or enters the shutdown state from the running state.

[0126] Step S600, adjust the opening degree of the second electronic expansion valve corresponding to the third indoor unit to the fourth preset opening degree, and continue to perform the determination whether there is a first one in the shutdown state among the plurality of indoor units. Steps...

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Abstract

The invention discloses a control method of an electronic expansion valve, an air conditioner and a computer readable storage medium. The method comprises the steps of when an outdoor unit is at the heating operation mode, determining whether a first indoor unit at the shutdown state exists in current multiple indoor units or not; when the first indoor unit at the shutdown state exists in the current multiple indoor units, adjusting the opening of a first electronic expansion valve corresponding to the first indoor unit to the first preset opening; acquiring the first temperature of a heat exchanger of the first indoor unit, and the second temperature of a heat exchanger of a second indoor unit; and adjusting the opening of the first electronic expansion valve based on the first temperature and the second temperature. According to the control method of the electronic expansion valve, the air conditioner and the computer readable storage medium, the problem that a multi-split air conditioner in the prior art is low in heating energy efficiency is solved, the opening of the electronic expansion valve corresponding to the indoor unit at the shutdown state is reasonably adjusted, and the energy efficiency of the air conditioner is improved.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for an electronic expansion valve, an air conditioner and a computer-readable storage medium. Background technique [0002] One-to-many air conditioners, one outdoor unit can drive multiple indoor units to run, which not only saves the installation space of the outdoor unit, but also has the advantages of simple system installation, compact structure, and comfort. Each room can be independently adjusted and operated, which can meet the needs of different rooms. Air conditioning load requirements, high comprehensive performance coefficient, energy saving and other advantages. With the development of the economy, one-drag multi-frequency heat pump air conditioners are more and more widely used in domestic households. [0003] One-to-many air-conditioning units, each indoor unit has a corresponding electronic expansion valve. However, only some of the mul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B41/06F24F11/84F24F11/64F24F11/89F24F110/10F25B41/34
CPCF24F11/64F24F11/84F24F11/89F24F2110/10F25B41/31Y02B30/70
Inventor 朱合华
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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