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A control method for preventing air conditioner load switching shutdown, computer readable storage medium and air conditioner

An air-conditioning load and control method technology is applied in the field of computer-readable storage medium and air-conditioning, and the control field of preventing air-conditioning load switching and shutdown can solve the problems of reduced user experience quality, poor heating effect, heating overload protection, etc. Solve the effect of heating overload protection and poor heating effect

Active Publication Date: 2021-02-12
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the combined control of the frequency of the external fan and the compressor, it not only solves the problem of heating overload protection caused by load switching, but also solves the problems of poor heating effect and reduced user experience quality caused by heating overload.

Method used

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  • A control method for preventing air conditioner load switching shutdown, computer readable storage medium and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: A control method for preventing air conditioner load switching and shutting down.

[0019] A control method for preventing air-conditioning load switching shutdown, the specific steps are as follows:

[0020] Step 1. Judging whether the working mode of the indoor unit at this time is the heating mode, and if it is judged to be the heating mode, proceed to the next step;

[0021] Step 2. Determine whether the load state of the system at this time is full load and load switching will occur. Generally speaking, when the multi-split air conditioner is in a relatively harsh environment (for example: indoor environment temperature sensor: 20°C, Outdoor environment temperature sensor: 12°C, indoor unit set at 30°C), when all indoor units have been put into operation for one hour or more, it is judged to be in a full load state. At this time, if there are any indoor units, one or more indoor units enter the shutdown mode, and only one indoor unit with the smalles...

Embodiment 2

[0031] Embodiment 2: A control method for preventing air conditioner load switching and shutting down.

[0032] The difference from Embodiment 1 is that when the multi-split air conditioner is heating, as long as load switching occurs, the compressor will run at a fixed frequency, which is 5HZ, 10HZ or other frequencies.

Embodiment 3

[0033] Embodiment 3: A control method for preventing air conditioner load switching and shutting down.

[0034] The difference from Example 1 is that as long as the indoor unit is turned off when the multi-connected air conditioner is running in the heating mode, the outdoor fan will run at a low wind speed, which can effectively prevent the occurrence of high-load shutdown.

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Abstract

The present invention provides a control method for preventing air conditioner load switching and shutdown, a computer-readable storage medium and an air conditioner, which detect and judge the working mode of the indoor unit, and if it is judged to be the heating mode, further detect and judge the load state of the system operation, and obtain the result based on the judgment According to the results of the load status, adjust the operating frequency of the compressor and the operating status of the external fan accordingly. The invention not only solves the problem of heating overload protection caused by load switching through the combined control of the frequency of the external fan and compressor, but also solves the problem of poor heating effect and reduced user experience quality caused by the process of heating overload And other issues.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a control method for preventing the air conditioner from being switched off due to load switching, a computer-readable storage medium and the air conditioner. Background technique [0002] In the prior art, an air conditioner multi-unit unit includes at least two parallel indoor units, one or more parallel outdoor units, and refrigerant flow connecting pipes between the outdoor unit and each indoor unit. Each indoor unit contains an indoor heat exchanger, which is mainly connected to exchange heat through refrigerant circulation pipes. For multi-connected units with high-load heating operation, the refrigerant originally flowing to the shutdown indoor unit will quickly flow to the running indoor unit, causing the coil temperature of the running indoor unit to rise rapidly, which will cause the gaseous refrigerant in the coil to be unable to release heat and liquefy , so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/64F24F11/77F24F11/65
CPCF24F11/64F24F11/65F24F11/77Y02B30/70
Inventor 孙燕佳刘杰廖禛
Owner GREE ELECTRIC APPLIANCES INC
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