WO2020187229A1 - Procédé de commande d'auto-nettoyage pour climatiseur et climatiseur associé - Google Patents

Procédé de commande d'auto-nettoyage pour climatiseur et climatiseur associé Download PDF

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Publication number
WO2020187229A1
WO2020187229A1 PCT/CN2020/079905 CN2020079905W WO2020187229A1 WO 2020187229 A1 WO2020187229 A1 WO 2020187229A1 CN 2020079905 W CN2020079905 W CN 2020079905W WO 2020187229 A1 WO2020187229 A1 WO 2020187229A1
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WO
WIPO (PCT)
Prior art keywords
air conditioner
self
control method
heat exchanger
condensed water
Prior art date
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PCT/CN2020/079905
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English (en)
Chinese (zh)
Inventor
于洋
Original Assignee
青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2020187229A1 publication Critical patent/WO2020187229A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention belongs to the technical field of air conditioners, and specifically provides a self-cleaning control method for an air conditioner and an air conditioner.
  • Air conditioners are equipment that can cool/heat indoors. As time goes by, the dust on the indoor unit and outdoor unit of the air conditioner will gradually increase. When the dust accumulates to a certain extent, a large number of bacteria will breed, especially indoors. When the air flows through the indoor unit, it will carry a lot of dust and bacteria, so it is necessary to clean the air conditioner in time.
  • the cleaning methods of the air conditioner include manual cleaning and self-cleaning of the air conditioner.
  • Manual cleaning is time-consuming and laborious. It is necessary to disassemble the parts of the air conditioner before cleaning. After the cleaning is completed, the parts need to be renewed. Assembled. Therefore, many current air conditioners have adopted the self-cleaning method.
  • the air conditioner cannot automatically determine when to turn on the self-cleaning control, but requires the user Judge yourself whether to implement the self-cleaning mode of the air conditioner, which will lead to: If the self-cleaning mode is frequently turned on, although the cleanliness of the air conditioner can be guaranteed, it will cause a waste of energy. If the self-cleaning mode is turned on for a long time Mode, it is difficult to ensure the cleanliness of the air conditioner, and may affect the normal use of the air conditioner, and at the same time affect human health.
  • the present invention provides a self-cleaning control method for an air conditioner.
  • the air conditioner includes an indoor heat exchanger and a condensate pipe.
  • the condensed water generated by the indoor heat exchanger is discharged through the condensate pipe, and the air conditioner self-cleaning control method includes the following steps: S110, detecting whether the indoor heat exchanger generates condensate; S120, in the When the indoor heat exchanger generates condensed water, detect the turbidity of the condensed water in the condensed water pipeline; S130, judge whether to run the self-cleaning mode according to the turbidity of the condensed water.
  • step S130 specifically includes: when the turbidity of the condensed water exceeds a preset standard value, the air conditioner is operated in a self-cleaning mode.
  • the air conditioner self-cleaning control method before step S110 is performed, further includes: during the operation of the air conditioner, detecting that the indoor fan of the air conditioner is running The current value at the current speed; step S110 specifically includes: when the current value is lower than the preset current value, then detecting whether the indoor heat exchanger generates condensed water.
  • the air conditioner self-cleaning control method before performing step S110, further includes: obtaining the PM2.5 value of indoor air; step S110 specifically includes: when the PM2. When the value of 5 is higher than the preset standard value, check whether the indoor heat exchanger generates condensate.
  • the step of "obtaining the PM2.5 value of indoor air” specifically includes: using a PM2.5 sensor to detect the PM2.5 value of indoor air.
  • the step of "obtaining the PM2.5 value of indoor air” specifically includes: obtaining local weather information; obtaining indoor air PM2.5 according to the obtained local weather information value.
  • the air conditioner self-cleaning control method before step S110 is performed, further includes: during the operation of the air conditioner, detecting that the indoor unit of the air conditioner is out The outlet air volume of the air outlet; step S110 specifically includes: when the outlet air volume is lower than the preset air volume, then detecting whether the indoor heat exchanger generates condensed water.
  • the air conditioner self-cleaning control method before step S110 is performed, further includes: detecting the leeward wind of the indoor heat exchanger during the operation of the air conditioner The pressure difference between the surface and the windward surface; step S110 specifically includes: when the pressure difference exceeds a preset pressure difference, then detecting whether the indoor heat exchanger generates condensation water.
  • the air conditioner further includes a water turbidity sensor arranged on the condensate water pipeline; in step S120, the water turbidity sensor is used to detect the condensate water pipe The turbidity of the condensate in the road.
  • the present invention also provides an air conditioner including a controller, characterized in that the controller is configured to be able to execute the above-mentioned air conditioner self-cleaning control method.
  • the present invention can accurately determine the degree of dirtiness of the indoor heat exchanger according to the turbidity of the condensed water, thereby enabling the air conditioner to start self-cleaning at an appropriate time, thereby improving user experience.
  • Fig. 1 is a main flow chart of the air conditioner self-cleaning control method of the present invention.
  • the air conditioner of the present invention includes an indoor heat exchanger and a condensed water pipeline.
  • the air conditioner when the surface temperature of the indoor heat exchanger is lower than the air dew point temperature, the water vapor in the air will be in the indoor heat exchanger.
  • the surface condenses to form condensed water, which is discharged through the condensed water pipeline.
  • the self-cleaning control method of the air conditioner of the present invention includes the following steps: S110, detecting whether the indoor heat exchanger generates condensate; S120, detecting the condensate water pipeline when the indoor heat exchanger generates condensate The turbidity of the condensed water; S130, judge whether to run the self-cleaning mode according to the turbidity of the condensed water.
  • S110 detecting whether the indoor heat exchanger generatesate
  • S120 detecting the condensate water pipeline when the indoor heat exchanger generates condensate The turbidity of the condensed water
  • S130 judge whether to run the self-cleaning mode according to the turbidity of the condensed water.
  • the present invention can accurately determine the degree of dirtiness of the indoor heat exchanger according to the turbidity of the condensed water, thereby enabling the air conditioner to start self-cleaning at an appropriate time, thereby improving user experience.
  • the indoor coil temperature and the indoor dew point temperature can be used to determine whether the indoor heat exchanger generates condensate, or other suitable methods, such as directly detecting whether there is condensate in the condensate pipeline.
  • the turbidity of the condensed water in the condensate water pipe can be detected by a water quality turbidity sensor provided on the condensate water pipe.
  • the air conditioner is caused to execute a self-cleaning mode.
  • the preset standard value can be set by those skilled in the art according to actual needs. For example, a person skilled in the art can obtain the corresponding relationship between the condensate turbidity and the dirty degree of the indoor heat exchanger through experiments, so as to determine a reasonable forecast standard value to determine whether the air conditioner needs self-cleaning.
  • the air conditioner self-cleaning control method of the present invention may also perform the following steps: during the operation of the air conditioner, the current value of the indoor fan of the air conditioner at the current speed is detected ; When the current value is lower than the preset current value, check whether the indoor heat exchanger produces condensate.
  • the current value of the indoor fan at the same rotation speed the more dirty the indoor heat exchanger, but it may be misjudged from the parameter of the fan current to determine whether the indoor heat exchanger is dirty or blocked.
  • the turbidity of the indoor condensate is combined to further determine whether the indoor heat exchanger is dirty, which can further reduce the risk of misjudgment.
  • the timing of the air conditioner to perform self-cleaning is more accurate.
  • the above-mentioned preset current value can be selected by a person skilled in the art according to actual conditions. For example, the standard current value of the fan at different speeds of the indoor heat exchanger in the case of no dirty blockage is obtained through the test method. When the real-time current value at a certain speed is lower than the standard current value at that speed, it is indicated The indoor heat exchanger begins to become dirty and clogged.
  • the air conditioner self-cleaning control method of the present invention may also perform the following steps: obtain the PM2.5 value of the indoor air; when the PM2.5 value is higher than the preset standard value , And then check whether the indoor heat exchanger produces condensate.
  • PM2.5 value the indoor air quality
  • the indoor heat exchanger When the air quality is poor, the indoor heat exchange The organs get dirty quickly; when the air quality is good, the indoor heat exchanger gets dirty slowly. However, it may be a risk of misjudgment to judge whether the indoor heat exchanger is dirty or blocked from the parameter of PM2.5 value alone.
  • PM2.5 represents the content of fine particles per cubic meter of air.
  • the PM2.5 concentration index of 10 micrograms/m3 is 10
  • the PM2.5 value of the present invention is the PM2.5 concentration index. Therefore, the aforementioned preset standard value can be set to any value between 120-150, and the PM2.5 value in this interval represents relatively poor air quality.
  • those skilled in the art can also select other reasonable values according to actual conditions.
  • the PM2.5 value of indoor air can be detected by using a PM2.5 sensor installed on the air conditioner, or the PM2.5 value of indoor air can be obtained from weather information by obtaining local weather information.
  • the specific method for obtaining the PM2.5 value can be flexibly selected by those skilled in the art, and will not be repeated here.
  • the air conditioner self-cleaning control method of the present invention may also perform the following steps: during the operation of the air conditioner, detecting the distance between the leeward side and the windward side of the indoor heat exchanger When the pressure difference exceeds the preset pressure difference, check whether the indoor heat exchanger produces condensate.
  • the pressure difference exceeds the preset pressure difference, check whether the indoor heat exchanger produces condensate.
  • the condensate turbidity is combined to further determine whether the indoor heat exchanger is required to be blocked, which can further reduce the risk of misjudgment and make
  • the timing of the air conditioner performing self-cleaning is more accurate.
  • the above-mentioned preset pressure difference can be selected by a person skilled in the art according to actual conditions to a reasonable value. For example, the standard pressure difference between the leeward side and the windward side of the indoor heat exchanger in the absence of dirty clogging is obtained through the test method.
  • the real-time pressure difference When the real-time pressure difference is greater than the standard pressure difference, it indicates that the indoor heat exchanger starts to appear dirty As the real-time pressure difference gradually increases, the dirty clogging of the indoor heat exchanger becomes more and more serious.
  • the preset pressure difference ⁇ standard pressure difference Those skilled in the art can select a reasonable preset pressure difference according to different test scenarios and different needs (the preset pressure difference ⁇ standard pressure difference).
  • the air conditioner self-cleaning control method of the present invention may also perform the following steps: during the operation of the air conditioner, detecting the air volume of the air outlet of the indoor unit of the air conditioner; When the outlet air volume is lower than the preset air volume, then check whether the indoor heat exchanger produces condensate.
  • the smaller the air outlet of the indoor unit the more dirty the indoor heat exchanger. However, it may be misjudged to judge whether the indoor heat exchanger is dirty or blocked from the single parameter of the air outlet.
  • the condensate turbidity is combined to further determine whether the indoor heat exchanger needs to be dirty, which can further reduce the risk of misjudgment and make the air conditioner perform self-cleaning
  • the timing is more accurate.
  • the above-mentioned preset air volume can be selected by a person skilled in the art according to actual conditions. For example, obtain the standard air flow rate of the indoor unit air outlet of the indoor heat exchanger without being dirty and clogged through the test method. When the real-time air flow rate is lower than the standard air flow rate, it means that the indoor heat exchanger starts to appear.
  • the present invention also provides an air conditioner including a controller configured to perform the above-mentioned air conditioner self-cleaning control method.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un climatiseur et son procédé de commande d'auto-nettoyage. Le climatiseur comprend un échangeur de chaleur intérieur et une conduite d'eau condensée, l'eau condensée générée par l'échangeur de chaleur intérieur étant évacuée à travers la conduite d'eau condensée. Le procédé de commande d'auto-nettoyage du climatiseur consiste : à détecter si un échangeur de chaleur intérieur génère de l'eau condensée ; si l'échangeur de chaleur intérieur génère de l'eau condensée, à détecter la turbidité de l'eau condensée dans la conduite d'eau condensée ; et à déterminer, en fonction de la turbidité de l'eau condensée, s'il faut exécuter un mode d'auto-nettoyage. Ainsi, l'encrassement et la propreté de l'échangeur de chaleur intérieur peuvent être déterminés avec précision en fonction de la turbidité de l'eau condensée, de telle sorte que l'auto-nettoyage du climatiseur commence à un moment propice, ce qui permet d'améliorer l'expérience utilisateur.
PCT/CN2020/079905 2019-03-21 2020-03-18 Procédé de commande d'auto-nettoyage pour climatiseur et climatiseur associé WO2020187229A1 (fr)

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CN201910219027.2A CN109916040A (zh) 2019-03-21 2019-03-21 空调器自清洁控制方法和空调器
CN201910219027.2 2019-03-21

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CN109916040A (zh) * 2019-03-21 2019-06-21 青岛海尔空调器有限总公司 空调器自清洁控制方法和空调器
CN110736195B (zh) * 2019-09-30 2021-11-23 青岛海尔空调器有限总公司 空调自清洁控制的方法及装置、空调
CN111306693A (zh) * 2019-11-12 2020-06-19 珠海格力电器股份有限公司 一种自清洁控制方法、装置及设备
CN110793099A (zh) * 2019-11-12 2020-02-14 珠海格力电器股份有限公司 具有自清洁功能的室内机、空调系统
CN111706954B (zh) * 2020-06-10 2022-04-19 青岛海尔空调器有限总公司 空调器及其自清洁控制方法
CN111811106A (zh) * 2020-06-24 2020-10-23 珠海格力电器股份有限公司 一种清洁控制方法、装置、空调、存储介质及处理器
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