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Defrosting control method, defrosting control device and air conditioner

A control method and technology of a control device, which are applied in heating and ventilation control systems, heating methods, lighting and heating equipment, etc., can solve the problems of unclean defrosting and exiting defrosting mode, waste of energy, low reliability, etc. The effect of thick frost without entering defrost mode, improving energy efficiency and reliability, and improving heating effect

Active Publication Date: 2017-09-12
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Set the timed defrosting, the defrosting cycle is fixed, it is easy to exit the defrosting mode after the defrosting is not clean, or the defrosting mode is continued after the defrosting is clean, the reliability is poor, and energy is wasted
[0004] (2) Manual control of defrosting is prone to excessive frosting due to user forgetting, etc., which seriously affects the heating effect of the air conditioner, and when manual control ends defrosting, it is cumbersome to observe with human eyes. It is a waste of manpower and time, and the cleanliness of the defrosting mode is also difficult to control
[0005] (3) Automatic defrosting according to the temperature detection of a certain position of the outdoor heat exchanger, the reliability of the detection is not high, and it is easy to exit the defrosting mode after the defrosting is not clean, especially when the external environment temperature is low, poor reliability

Method used

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  • Defrosting control method, defrosting control device and air conditioner
  • Defrosting control method, defrosting control device and air conditioner
  • Defrosting control method, defrosting control device and air conditioner

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Embodiment 1

[0059] Combine below Figure 1 to Figure 2 The defrosting control method according to the embodiment of the present invention will be specifically described.

[0060] figure 1 A schematic flowchart of a defrosting control method according to an embodiment of the present invention is shown.

[0061] Such as figure 1 As shown, the defrosting control method according to an embodiment of the present invention is used in an air conditioner, and the air conditioner includes a compressor and an outdoor heat exchanger communicated through pipelines. The defrosting control method includes: Step S102, when the pipe is detected When the road is connected to the compressor and the outdoor heat exchanger in defrosting mode, record the ambient temperature record of the outdoor heat exchanger, the temperature in the middle of the outdoor heat exchanger, and the outlet temperature of the outdoor heat exchanger in real time; step S104, according to the operation of the compressor state, con...

Embodiment 2

[0082] image 3 A schematic block diagram of a defrosting control device 300 according to an embodiment of the present invention is shown.

[0083] Figure 4 A schematic block diagram of an air conditioner 400 according to an embodiment of the present invention is shown.

[0084] Such as image 3 and Figure 4 As shown, the defrosting control device 300 according to an embodiment of the present invention is used in an air conditioner 400. The air conditioner 400 includes a compressor 402 and an outdoor heat exchanger 404 communicated through pipelines. The defrosting control device 300 includes: The unit 302 is used to record the ambient temperature record of the outdoor heat exchanger 404, the middle temperature of the outdoor heat exchanger 404, and the outdoor heat exchanger in real time when it is detected that the pipeline is connected to the compressor 402 and the outdoor heat exchanger 404 in defrosting mode. The outlet temperature of the compressor 404; the control...

Embodiment 3

[0108] Figure 4 A schematic block diagram of an air conditioner 400 according to an embodiment of the present invention is shown.

[0109] Such as Figure 4 As shown, an air conditioner 400 according to an embodiment of the present invention includes a compressor 402 and an outdoor heat exchanger 404 communicated through pipelines, and also includes: the defrosting control device 300 proposed in any one of the above embodiments.

[0110] In this embodiment, the air conditioner 400 includes the defrosting control device 300 according to any one of the embodiments of the present invention, so it has all the beneficial effects of the defrosting control device 300 described above, which will not be repeated here.

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Abstract

The invention provides a defrosting control method, a defrosting control device and an air conditioner. The defrosting control method is used for the air conditioner. The air conditioner comprises a compressor and an outdoor heat exchanger which communicate with each other through a pipeline. The defrosting control method comprises the steps that when it is detected that the pipeline enables the compressor and the outdoor heat exchanger to communicate in a defrosting manner, the environmental temperatures, the middle temperatures and the outlet temperatures of the outdoor heat exchanger are recorded in real time; according to the operation state of the compressor and / or the operation duration of the defrosting mode, the defrosting mode is controlled to be ended; and / or when the environmental temperature is lower than or equal to a preset environmental temperature, according to the middle temperature and the outlet temperature, the defrosting mode is controlled to be ended. By the adoption of the defrosting control method, the defrosting control device and the air conditioner, the frequency of the situation that the defrosting mode is ended when defrosting is incomplete can be reduced, the frequency of the situation that defrosting is continuously conducted when no frost exists can also be reduced, the energy efficiency and reliability of the defrosting mode are further improved, and the defrosting control method and the defrosting control device are particularly suitable for defrosting outdoor heat exchangers in adverse low-temperature environments.

Description

technical field [0001] The present invention relates to the technical field of air conditioners, in particular to a defrosting control method, a defrosting control device and an air conditioner. Background technique [0002] When the air conditioner is used for heating, when the outdoor ambient temperature is low and the relative humidity is high, the outdoor heat exchanger of the air conditioner is very prone to frost, resulting in poor heating effect. Frosting, manual operation control defrosting, and automatic defrosting mode based on the temperature detection of a certain position of the outdoor heat exchanger to achieve defrosting of the outdoor heat exchanger have the following technical defects: [0003] (1) Set the timed defrosting, the defrosting cycle is fixed, it is easy to exit the defrosting mode after the defrosting is not clean, or continue the defrosting mode after the defrosting is clean, the reliability is poor, and energy is wasted. [0004] (2) Manual co...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 莫艺扬洪志荣
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD