WO2018176285A1 - 空调器及其的除霜控制方法 - Google Patents

空调器及其的除霜控制方法 Download PDF

Info

Publication number
WO2018176285A1
WO2018176285A1 PCT/CN2017/078655 CN2017078655W WO2018176285A1 WO 2018176285 A1 WO2018176285 A1 WO 2018176285A1 CN 2017078655 W CN2017078655 W CN 2017078655W WO 2018176285 A1 WO2018176285 A1 WO 2018176285A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
conversion rate
air conditioner
normal
way valve
Prior art date
Application number
PCT/CN2017/078655
Other languages
English (en)
French (fr)
Chinese (zh)
Inventor
杨俊�
雷华翘
Original Assignee
广东美的制冷设备有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Priority to JP2019553519A priority Critical patent/JP7071395B2/ja
Priority to PCT/CN2017/078655 priority patent/WO2018176285A1/zh
Publication of WO2018176285A1 publication Critical patent/WO2018176285A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular, to a defrosting control method for an air conditioner, a nonvolatile computer storage medium, and an air conditioner.
  • R290 (propane) refrigerant also known as refrigerant, is a new type of environmentally friendly refrigerant, mainly used in central air conditioning, heat pump air conditioning, household air conditioning and other small refrigeration equipment.
  • the density of R290 is smaller than that of other refrigerants such as R22 (difluorochloromethane), so the charge of R290 in the same volume is small.
  • the air conditioner of the same capacity segment is much smaller than the air conditioner using other refrigerants, and in order to meet the cooling capacity and energy efficiency requirements, it is necessary to use a large displacement. Compressor and large-area heat exchanger, but this will cause the temperature at the capillary to be lower than the pour point temperature of the lubricating oil for a long time at the end of the defrosting when the capillary is used as a throttling device, so that the lubricating oil is flocculated. If the flow is serious, it will cause capillary blockage and cause the whole machine to malfunction.
  • a first object of the present invention is to provide a defrosting control method for an air conditioner, which controls a down-speed rate of a compressor when the air conditioner is switched from a defrosting mode to a heating mode, thereby Effectively preventing the temperature at the outlet of the throttling element from being too low causes the lubricating oil to generate a floc flow and block the throttling element.
  • a second object of the present invention is to provide a non-volatile computer storage medium.
  • a third object of the present invention is to provide an air conditioner.
  • a first aspect of the present invention provides a defrosting control method for an air conditioner, the air conditioner including a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttling element.
  • the exhaust port of the compressor is connected to the first end of the four-way valve
  • the second end of the four-way valve is connected to one end of the outdoor heat exchanger
  • the outdoor heat exchanger is One end is connected to one end of the indoor heat exchanger
  • the other end of the indoor heat exchanger is connected to one end of the throttling element
  • the other end of the throttling element is connected to the third end of the four-way valve
  • the fourth end of the four-way valve is connected to the air return port of the compressor, and the method includes the following steps: the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process And controlling the four-way valve to reverse after delaying for a first preset time; controlling the compressor to be turned on after the four-way valve is completed; obtaining a normal up-conversion rate of the compressor, And acquiring the current up-conversion of the compressor according to the normal up-conversion rate Rate, and according to the current rate upconversion The compressor performs up-conversion control, wherein
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve reversing after delaying the first preset time .
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the method controls the down-speed rate of the compressor when the air conditioner is switched from the defrosting mode to the heating mode, thereby effectively preventing the temperature at the outlet of the throttle element from being too low, causing the lubricating oil to generate a floc flow and blocking the throttling. element.
  • the acquiring the current up-conversion rate of the compressor according to the normal up-conversion rate comprises: multiplying the normal up-conversion rate by a preset ratio to obtain the current up-conversion rate .
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, The preset ratio is gradually increased from the first preset value to the second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from It is 2/3 ⁇ 1.
  • the up-converting control of the compressor according to the current up-conversion rate comprises: directly controlling the compressor to up-convert according to the current up-conversion rate until the compressor The operating frequency reaches the operating frequency required for the normal heating operation of the air conditioner; or, after the compressor is first controlled to increase the frequency according to the current rising frequency for a second predetermined time, the compressor is controlled according to The normal up-conversion rate is up-converted until the operating frequency of the compressor reaches the operating frequency required for normal heating operation of the air conditioner.
  • the defrosting control method of the air conditioner further includes: the air conditioner controlling the compressor to stop when receiving the defrosting signal during operation in the heating mode, and After the third predetermined time delay, controlling the four-way valve to reverse; after the four-way valve is completed, controlling the compressor to be turned on, and controlling the compressor to rise according to the normal up-conversion rate Frequency to defrost the air conditioner.
  • a second aspect of the present invention provides a nonvolatile computer storage medium storing one or more programs when the one or more programs are executed by a device
  • the apparatus is caused to perform the above-described defrosting control method of the air conditioner.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve to reverse after delaying the first preset time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • an embodiment of the third aspect of the present invention provides an air conditioner including: a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttle element, wherein the row of the compressor a port and a first end of the four-way valve Connected, the second end of the four-way valve is connected to one end of the outdoor heat exchanger, the other end of the outdoor heat exchanger is connected to one end of the indoor heat exchanger, and the other of the indoor heat exchanger One end is connected to one end of the throttle element, the other end of the throttle element is connected to the third end of the four-way valve, and the fourth end of the four-way valve is connected to the air return port of the compressor; a controller, configured to control the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and control the four-way valve to change after delaying the first preset time And, when the four-way valve is commutated, controlling the compressor to be turned on, obtaining a
  • the controller controls the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and controls the four-way valve to reverse after delaying the first predetermined time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the controller acquires a current up-conversion rate of the compressor according to the normal up-conversion rate, wherein the controller multiplies the normal up-conversion rate by a preset ratio The current upsampling rate is obtained.
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, The preset ratio is gradually increased from the first preset value to the second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from It is 2/3 ⁇ 1.
  • the controller performs up-conversion control on the compressor according to the current up-conversion rate, wherein the controller directly controls the compressor to rise according to the current up-conversion rate Frequency until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner; or the controller first controls the compressor to up-convert the second pre-up according to the current up-conversion rate After the time is set, the compressor is further controlled to be up-converted according to the normal up-conversion rate until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner.
  • the controller is further configured to control the compressor to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and delay the third preset After the time, controlling the four-way valve to reverse, and when the four-way valve is completed, controlling the compressor to be turned on, and controlling the compressor to increase according to the normal up-conversion rate, The air conditioner is defrosted.
  • FIG. 1 is a flowchart of a defrosting control method of an air conditioner according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention.
  • 3a is a schematic diagram of an up-conversion control of a compressor when a preset ratio is a fixed value according to an embodiment of the present invention
  • 3b is a schematic diagram of an up-conversion control of a compressor when a preset ratio is a fixed value according to another embodiment of the present invention
  • 4a is a schematic diagram of up-conversion control of a compressor when a preset ratio is a variable value according to an embodiment of the present invention
  • 4b is a schematic diagram of up-conversion control of a compressor when the preset ratio is a variable value according to another embodiment of the present invention.
  • FIG. 1 is a flow chart of a defrosting control method of an air conditioner according to an embodiment of the present invention.
  • the air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttling element (such as a capillary).
  • the exhaust port of the compressor is connected to the first end of the four-way valve
  • the second end of the four-way valve is connected to one end of the outdoor heat exchanger
  • the other end of the outdoor heat exchanger is connected to one end of the indoor heat exchanger
  • the other end of the indoor heat exchanger is connected to one end of the throttle element
  • the other end of the throttle element is connected to the third end of the four-way valve
  • the fourth end of the four-way valve is connected to the return port of the compressor.
  • the defrosting control method of the air conditioner may include the following steps:
  • the air conditioner controls the compressor to stop when receiving the defrost end signal during the defrosting process, and controls the four-way valve to reverse after the first preset time delay.
  • the first preset time may be calibrated according to actual conditions.
  • the air conditioner is controlled to switch to the defrost mode to defrost the outdoor heat exchanger, thereby ensuring the heating effect of the indoor heat exchanger.
  • the air conditioner is again controlled to switch to the heating mode.
  • the compressor can be stopped first, and then the four-way valve is controlled to switch to the heating mode.
  • the temperature at the throttle element is always low, so it can be delayed after the first preset time.
  • control the four-way valve to reverse the direction so that the system pressure reaches equilibrium, so that the temperature at the throttling element is slowly increased, preventing the temperature at the throttling element from being lower than the pour point temperature of the lubricating oil to generate a floc flow, blocking Throttle element.
  • the reversing of the four-way valve is mainly realized by the internal sliding piece. If the compressor is started up during the four-way valve reversing process, the sliding piece will have a large impact, so in the embodiment of the present invention In the middle, after the four-way valve is completed, the compressor is turned on to ensure that the four-way valve will not be damaged.
  • the temperature at the throttling element is always in a low state before and after the end of the defrost, although the temperature at the throttling element can be increased to some extent by the delay control, if the compressor is directly controlled at this time, it is normal.
  • the up-conversion rate is increased, the refrigerant in the indoor heat exchanger will be evacuated quickly, so that the pressure on the side of the indoor heat exchanger becomes very low, while the pressure on the side of the outdoor heat exchanger is relatively high, and the pressure difference is large.
  • the temperature at the throttling element drops rapidly and falls below the pour point temperature of the lubricating oil, causing the lubricating oil to produce a severe floc flow, resulting in blockage of the throttling element.
  • the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the up-conversion rate is smaller than the compressor.
  • the normal up-conversion rate is then controlled based on the up-conversion rate. That is to say, after the compressor is turned on, the compressor will be up-converted at a rate lower than the normal up-conversion rate, thereby effectively preventing oil blockage of the throttle element.
  • obtaining the current up-conversion rate of the compressor based on the normal up-conversion rate includes multiplying the normal up-conversion rate by a preset ratio to obtain the current up-conversion rate.
  • the preset ratio may be a fixed value or a variable value.
  • the preset ratio may range from 1/3 to 2/3; when the preset ratio is a variable value, the preset ratio is gradually increased from the first preset value to the second value.
  • the preset value may be in the range of 0 to 1/3, and the second preset value may be in the range of 2/3 to 1.
  • the up-converting control of the compressor according to the current up-conversion rate includes: directly controlling the compressor to up-convert according to the current up-conversion rate until the operating frequency of the compressor reaches the normal heating of the air conditioner.
  • the operating frequency required for operation or, first control the compressor to increase the frequency according to the current up-conversion rate for a second predetermined time, and then control the compressor to increase the frequency according to the normal up-conversion rate until the operating frequency of the compressor reaches the normal condition of the air conditioner.
  • the second preset time can be calibrated according to actual conditions.
  • the compressor when the defrosting of the air conditioner ends, the compressor is first stopped, and after the first preset time t1 is delayed, the four-way valve is controlled to be commutated, and the current indoor and outdoor ambient temperature is obtained, and the temperature is pre-conditioned according to the indoor and outdoor environment temperature.
  • the table is used to obtain the normal up-conversion rate V of the compressor at the ambient temperature, and then the normal up-conversion rate V is multiplied by a preset ratio to calculate the current up-conversion rate of the compressor.
  • the compressor After the four-way valve is commutated, the compressor is up-converted according to the current up-conversion rate.
  • the current up-conversion rate of the corresponding compressor is 1/2V.
  • the compressor is controlled to increase frequency according to the normal up-conversion rate V until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner, as shown in Fig. 3b.
  • the compressor when the preset ratio is a variable value, as shown in FIG. 4a, after controlling the compressor to be turned on, the compressor can be controlled to increase frequency by 1/3V, and then the current up-conversion rate is adjusted at regular intervals.
  • a certain value when the current operating frequency of the compressor reaches 2/3V, stop the current up-conversion rate of the compressor and control the compressor operation at the up-conversion rate of 2/3V until the compressor reaches the operating frequency.
  • the reasonable setting of the time interval and the value of each increase can ensure that the up-conversion time just reaches the second preset time t2 when the up-conversion rate reaches 2/3V.
  • the normal up-conversion rate of the compressor may be obtained in other manners, and the prior art may be used, and is not limited herein.
  • the defrosting control method of the air conditioner according to the embodiment of the present invention is modified on the basis of the defrosting control logic of the existing air conditioner, thereby effectively avoiding the air conditioner without changing the components of the air conditioner.
  • the temperature of the throttling element such as the capillary is lower than the pour point temperature of the lubricating oil, causing the lubricating oil to generate a floc flow, thereby blocking the throttling element, thereby causing the whole machine to malfunction. problem.
  • the defrosting control method of the air conditioner may further include: controlling the compressor to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and delaying After the third preset time, the four-way valve is controlled to be reversed; when the four-way valve is completed, the compressor is controlled to be turned on, and the compressor is up-regulated according to the normal up-conversion rate to defrost the air conditioner.
  • the third preset time can be calibrated according to actual conditions.
  • the prior art can be used to determine whether the outdoor heat exchanger needs to be defrosted, if necessary, the compressor is stopped, and the third preset is delayed. After the time, the four-way valve is reversed, and after the four-way valve is completed, the compressor is controlled to enter the defrost mode at normal up-conversion rate (cooling defrost). Wherein, after the delay of the third preset time, the four-way valve reversing is controlled, which can effectively prevent the noise problem caused by the reversal of the four-way valve, and can control the compressor to be turned on after the four-way valve is completed, which can effectively prevent The four-way valve is damaged by the impact.
  • the compressor When entering the defrost mode, the compressor can be directly controlled to increase the frequency according to the normal up-conversion rate.
  • the reason is that when the air conditioner is operated in the heating mode, the throttling element is always in a high temperature state, and the throttling element is not caused.
  • the temperature is lower than the pour point temperature of the lubricating oil, so that no clogging occurs.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the delay after the first preset time Four-way valve reversing. After the four-way valve is commutated, the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate. Frequency control, wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the method controls the down-speed rate of the compressor when the air conditioner is switched from the defrosting mode to the heating mode, thereby effectively preventing the temperature at the outlet of the throttle element from being too low, causing the lubricating oil to generate a floc flow and blocking the throttling. element.
  • the air conditioner of the embodiment of the present invention may include: a compressor 10, a four-way valve 20, an outdoor heat exchanger 30, an indoor heat exchanger 40, a throttle element 50, and a controller (not shown in the figure) Out).
  • the exhaust port of the compressor 10 is connected to the first end of the four-way valve 20, the second end of the four-way valve 20 is connected to one end of the outdoor heat exchanger 30, and the other end of the outdoor heat exchanger 30 is heat exchanged with the room.
  • One end of the device 40 is connected, the other end of the indoor heat exchanger 40 is connected to one end of the throttle element 50, the other end of the throttle element 50 is connected to the third end of the four-way valve 20, and the fourth end of the four-way valve 20 is The air return ports of the compressor 10 are connected.
  • the controller is configured to control the compressor 10 to stop when receiving the defrost end signal during the defrosting process of the air conditioner, and control the four-way valve 20 to reverse the direction after the first preset time delay, and when the four-way valve 20 is replaced Upon completion, the compressor 10 is controlled to be turned on, and the normal up-conversion rate of the compressor 10 is obtained, and the current up-conversion rate of the compressor 10 is obtained based on the normal up-conversion rate, and the compressor 10 is up-converted according to the current up-conversion rate. Control, wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the controller acquires the current up-conversion rate of the compressor 10 based on the normal up-conversion rate, wherein the controller multiplies the normal up-conversion rate by a predetermined ratio to obtain the current up-conversion rate.
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, the preset ratio is from the first pre-predetermined
  • the set value is gradually increased to a second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from 2/3 to 1.
  • the controller performs up-conversion control of the compressor 10 according to the current up-conversion rate, wherein the controller directly controls the compressor 10 to up-convert according to the current up-conversion rate until the operating frequency of the compressor 10 reaches The operating frequency required for the normal heating operation of the air conditioner; or, the controller first controls the compressor 10 to increase the frequency according to the current up-clock rate for a second predetermined time, and then controls the compressor 10 to up-convert according to the normal up-conversion rate until The operating frequency of the compressor 10 reaches the operating frequency required for the normal heating operation of the air conditioner.
  • the controller is further configured to control the compressor 10 to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and control the fourth after delaying the third preset time.
  • the valve 20 is reversed, and when the four-way valve 20 is commutated, the compressor 10 is controlled to be turned on, and the compressor 10 is controlled to rise at a normal up-conversion rate to defrost the air conditioner.
  • the controller controls the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and controls the four-way valve to reverse after delaying the first predetermined time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • embodiments of the present invention also provide a non-volatile computer storage medium storing one or more programs that, when executed by a device, cause the device to execute the above-described air conditioner Defrost control method.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve to reverse after delaying the first preset time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” unless otherwise specifically defined and defined.
  • the terms should be understood in a broad sense. For example, they may be fixed connections, detachable connections, or integrated; they may be mechanical or electrical; they may be directly connected or indirectly connected through an intermediate medium. It is the internal communication of two components or the interaction of two components unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
PCT/CN2017/078655 2017-03-29 2017-03-29 空调器及其的除霜控制方法 WO2018176285A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2019553519A JP7071395B2 (ja) 2017-03-29 2017-03-29 空気調和機及びその除霜制御方法
PCT/CN2017/078655 WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/078655 WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法

Publications (1)

Publication Number Publication Date
WO2018176285A1 true WO2018176285A1 (zh) 2018-10-04

Family

ID=63673883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/078655 WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法

Country Status (2)

Country Link
JP (1) JP7071395B2 (ja)
WO (1) WO2018176285A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112880049B (zh) * 2021-02-22 2022-02-25 青岛海信日立空调系统有限公司 空调系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186016A (en) * 1990-11-06 1993-02-16 Kabushiki Kaisha Toshiba Defrosting control method and apparatus for air conditioner
CN103123194A (zh) * 2012-03-31 2013-05-29 宁波奥克斯电气有限公司 多联式空调机组的除霜方法
CN104748465A (zh) * 2013-12-27 2015-07-01 广东美的制冷设备有限公司 空调除霜控制方法、空调除霜控制装置和空调
CN106196476A (zh) * 2016-07-27 2016-12-07 青岛海尔空调器有限总公司 空调内外机清洗方法
CN106949679A (zh) * 2017-03-29 2017-07-14 广东美的制冷设备有限公司 空调器及其的除霜控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08223989A (ja) * 1995-02-13 1996-08-30 Mitsubishi Electric Corp 空気調和機の制御装置
CN1268886C (zh) 2001-07-20 2006-08-09 乐金电子(天津)电器有限公司 热泵的除霜运转方法
JP2004225929A (ja) 2003-01-20 2004-08-12 Sanyo Electric Co Ltd 空気調和装置及び空気調和装置の制御方法
JP6113503B2 (ja) 2012-12-28 2017-04-12 ダイキン工業株式会社 ヒートポンプ装置
JP6428373B2 (ja) 2015-02-26 2018-11-28 株式会社富士通ゼネラル ヒートポンプ式暖房給湯装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186016A (en) * 1990-11-06 1993-02-16 Kabushiki Kaisha Toshiba Defrosting control method and apparatus for air conditioner
CN103123194A (zh) * 2012-03-31 2013-05-29 宁波奥克斯电气有限公司 多联式空调机组的除霜方法
CN104748465A (zh) * 2013-12-27 2015-07-01 广东美的制冷设备有限公司 空调除霜控制方法、空调除霜控制装置和空调
CN106196476A (zh) * 2016-07-27 2016-12-07 青岛海尔空调器有限总公司 空调内外机清洗方法
CN106949679A (zh) * 2017-03-29 2017-07-14 广东美的制冷设备有限公司 空调器及其的除霜控制方法

Also Published As

Publication number Publication date
JP7071395B2 (ja) 2022-05-18
JP2020515801A (ja) 2020-05-28

Similar Documents

Publication Publication Date Title
CN106949679B (zh) 空调器及其的除霜控制方法
US10077925B2 (en) Refrigeration apparatus
KR101626675B1 (ko) 공기조화기 및 그 제어방법
WO2014068833A1 (ja) 空気調和装置
JP6545375B2 (ja) ヒートポンプ式空調給湯装置
WO2018001183A1 (zh) 多联机系统及其控制方法
JP6950191B2 (ja) 空気調和機
WO2018189859A1 (ja) 冷凍サイクル装置及び冷凍サイクル装置の除霜運転方法
JP2015152205A (ja) 空気調和装置
WO2021068358A1 (zh) 一种多联机除霜控制方法
WO2018176285A1 (zh) 空调器及其的除霜控制方法
CN108592297B (zh) 空调器除霜控制方法
JP2016080229A (ja) 空気調和機
JP7295779B2 (ja) ヒートポンプ式温水暖房システム
JP6529579B2 (ja) ヒートポンプシステム
CN104501439A (zh) 用于冰箱的制冷系统和冰箱
JP2012167902A (ja) 地中熱ヒートポンプ装置
CN110906503B (zh) 空调低温制热控制方法、装置及空调
WO2022249437A1 (ja) ヒートポンプ装置および給湯装置
JP7319890B2 (ja) ヒートポンプ式温水暖房システム
CN105190195A (zh) 空调机
JP2021071248A (ja) ヒートポンプ式温水暖房システム
JP2020079695A (ja) 空気調和システムの制御方法
JP6393973B2 (ja) 冷凍装置
KR100878468B1 (ko) 공기조화기 및 그 과부하 제어방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17904053

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019553519

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 07/02/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17904053

Country of ref document: EP

Kind code of ref document: A1