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Control method and device of air conditioner and air conditioner

A control method and technology of a control device, which are applied in control/regulation systems, program control, adaptive control, etc., can solve the problems of false triggering of outdoor units, fault shutdown, low low pressure, etc., to increase operating load, avoid frequent shutdown, The effect of improving reliability

Active Publication Date: 2018-12-25
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

[0002] At present, in related technologies, multi-connected air-conditioning systems generally match the operation of multiple indoor units. When only a few indoor units or only one indoor unit is turned on, sometimes the opening of the electronic expansion valve of the indoor unit is closed. If it is too small, the low voltage will cause the outdoor unit to accidentally trigger the low-voltage protection and cause a fault shutdown. After the fault is automatically restored, the air-conditioning system will run again, and the low-voltage protection will occur again for the same reason, causing the air-conditioning system to start and stop frequently.
When the air-conditioning system works in the low-temperature refrigeration mode, the above-mentioned false shutdowns occur frequently, which seriously affects the reliability of the air-conditioning system and the comfort of the user when using the air-conditioner.

Method used

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  • Control method and device of air conditioner and air conditioner
  • Control method and device of air conditioner and air conditioner
  • Control method and device of air conditioner and air conditioner

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Embodiment Construction

[0049] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0050] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0051] Refer below Figure 1 to Figure 9 The air conditioner control method, the air conditioner control device and the air conditioner according to some embodiments of the present invention are des...

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Abstract

The invention provides a control method of an air conditioner, a control device of the air conditioner and the air conditioner. The control method of the air conditioner comprises the step that the opening of an electronic expansion valve is adjusted when the starting capacity of an indoor machine is less than or equal to a capacity threshold valve and a low pressure protection signal is received.According to the technical scheme, the control method and device of the air conditioner and the air conditioner can avoid the shutdown of the air conditioner caused by the low voltage protection signal misinformation due to the small operating load of the air conditioner and the low opening degree of the electronic expansion valve when the opening capacity of the indoor machine is small, the frequent error shutdown when the opening capacity of the indoor machine is small is avoided, the reliability of the air conditioner is improved, and the comfort of users to use the air conditioner is further improved.

Description

technical field [0001] The present invention relates to the technical field of air conditioner control, in particular to an air conditioner control method, an air conditioner control device and an air conditioner. Background technique [0002] At present, in related technologies, multi-connected air-conditioning systems generally match the operation of multiple indoor units. When only a few indoor units or only one indoor unit is turned on, sometimes the opening of the electronic expansion valve of the indoor unit is closed. If it is too small, the low voltage will cause the outdoor unit to accidentally trigger the low-voltage protection and cause a fault shutdown. After the fault is automatically restored, the air-conditioning system will run again, and the low-voltage protection will occur again for the same reason, causing the air-conditioning system to start and stop frequently. When the air-conditioning system works in the low-temperature refrigeration mode, the above-m...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/84F24F11/88F24F11/89F24F11/61
CPCF24F11/61F24F11/64F24F11/84F24F11/88F24F11/89F24F11/48F24F11/49G05B15/02G05B2219/2614F24F11/65G05B13/021
Inventor 任林行许永锋马熙华
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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