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Air conditioner, high-temperature sterilization and defrosting control method and device thereof and storage medium

A high-temperature sterilization and control method technology, which is applied in the directions of space heating and ventilation, heating and ventilation control systems, heating methods, etc., can solve the problems of affecting the sterilization effect, reducing the user experience, and having defrost actions to ensure sterilization. effect, improve user experience, slow down the effect of frosting

Active Publication Date: 2021-09-17
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when performing high-temperature sterilization in winter, since the evaporation temperature of the outdoor heat exchanger is lower than 0°C, it is easy to frost. If the defrosting conditions are met during the high-temperature sterilization process and defrosting is performed, the high-temperature sterilization time may be insufficient. Affect the sterilization effect; or, continue high-temperature sterilization after defrosting, resulting in defrosting action during the high-temperature sterilization process, making the high-temperature sterilization process last too long, thereby reducing user experience

Method used

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  • Air conditioner, high-temperature sterilization and defrosting control method and device thereof and storage medium
  • Air conditioner, high-temperature sterilization and defrosting control method and device thereof and storage medium
  • Air conditioner, high-temperature sterilization and defrosting control method and device thereof and storage medium

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Effect test

Embodiment 1

[0059] Embodiment 1: After the air conditioner receives the high temperature sterilization instruction, it determines that the air conditioner is currently running in the heating mode, and first judges whether the critical defrosting condition for high temperature sterilization is met. At this time, if the running time of the compressor is 30 minutes and the critical defrosting condition for high temperature sterilization is not met, the air conditioner is controlled to perform high temperature sterilization. During the high-temperature sterilization operation, it is continuously judged whether the air conditioner meets the conventional defrosting conditions. When the running time of the compressor is t=70min>t1, the outdoor heat exchange temperature difference △T=11°C>T1, and the evaporation temperature Te=-2°C<T3, which meets the conventional defrosting conditions, the controller controls the indoor motor, The expansion valve, outdoor motor, and compressor perform the follow...

Embodiment 2

[0060] Embodiment 2: After the air conditioner receives the high-temperature sterilization command and determines that the air conditioner is currently running in the heating mode, it first determines whether the critical defrosting condition for high-temperature sterilization is met. At this time, if the running time of the compressor is 60 minutes, but △T=5℃<T2, the critical defrosting condition for high temperature sterilization is not met, then the air conditioner will perform the high temperature sterilization function. During the period of high temperature sterilization, it is continuously judged whether the conventional defrosting conditions are met. During high-temperature sterilization, when the temperature value Tc of the indoor heat exchanger satisfies the sterilization temperature range and the accumulative time reaches 50 minutes, when the high-temperature sterilization function exit condition is met, but the conventional defrosting condition is not met, the high-t...

Embodiment 3

[0061] Embodiment 3: After the air conditioner receives the high temperature sterilization command, it determines that the air conditioner is currently running in the heating mode, and first judges whether the critical defrosting condition for high temperature sterilization is met. At this time, if the running time of the compressor is 60min>t2, the outdoor heat exchange temperature difference △T=9℃>T2, and the evaporation temperature Te=-5℃<T3, which meets the critical defrosting conditions for high-temperature sterilization, the air conditioner will perform defrosting first Action, after the defrosting is completed, then execute the high temperature sterilization function.

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Abstract

The invention provides an air conditioner, a high-temperature sterilization and defrosting control method and device thereof and a storage medium. The method comprises the steps of after receiving a high-temperature sterilization instruction, judging the current running state of the air conditioner; if the air conditioner is in the heating operation state currently, judging whether the air conditioner meets the preset critical defrosting condition or not; if not, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute the high-temperature sterilization action; and when the air conditioner meets the conventional defrosting condition in the process of executing the high-temperature sterilization action, controlling an indoor motor to reduce the rotating speed until the air conditioner meets the preset high-temperature sterilization exit condition. According to the air conditioner, the high-temperature sterilization and defrosting control method and device thereof and the storage medium provided by the invention, the problems that in the high-temperature sterilization process of the air conditioner, defrosting is carried out due to the fact that the air conditioner meets the defrosting condition, the high-temperature sterilization time is prolonged, and the sterilization effect is affected can be solved, so that the user experience is improved while the sterilization effect is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner and its high temperature sterilization and defrosting control method, device and storage medium. Background technique [0002] With the health needs of users during the use of air conditioners, the high-temperature sterilization function of air conditioners has become the focus of relevant technical personnel. The high-temperature sterilization function of air conditioners is to use the high temperature of indoor heat exchangers to inactivate germs and viruses. When the temperature of the heat exchanger exceeds 56°C and lasts for 30 minutes, the virus can be inactivated. Therefore, the high-temperature sterilization function is to control the coil temperature of the indoor heat exchanger to maintain above 56°C. In addition, the maximum condensing temperature for sterilization should not exceed the maximum condensing pressure of 4.15MPa specified by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/54F24F11/64F24F11/61F24F11/84F24F11/86F24F11/65F24F11/41F24F140/20
CPCF24F11/54F24F11/64F24F11/61F24F11/84F24F11/86F24F11/65F24F11/41F24F2140/20Y02B30/70
Inventor 王军张素珍
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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