WO2019075785A1 - 空调系统及其化霜控制方法和装置 - Google Patents
空调系统及其化霜控制方法和装置 Download PDFInfo
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- WO2019075785A1 WO2019075785A1 PCT/CN2017/109129 CN2017109129W WO2019075785A1 WO 2019075785 A1 WO2019075785 A1 WO 2019075785A1 CN 2017109129 W CN2017109129 W CN 2017109129W WO 2019075785 A1 WO2019075785 A1 WO 2019075785A1
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- Prior art keywords
- defrosting
- time
- air conditioning
- conditioning system
- temperature
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
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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
- F24F11/65—Electronic processing for selecting an operating mode
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Definitions
- the present invention relates to the field of air conditioning technology, and in particular, to a defrosting control method for an air conditioning system, a defrosting control device for an air conditioning system, and an air conditioning system having the defrosting control device.
- the defrosting process needs to set a forced exit time to avoid defrosting for a long time, which causes the indoor unit to fail to heat.
- the exit time is generally fixed, so the length of the fixed time must meet the needs of all operating environments.
- the exit time is set too long, if the frost layer is not thick under low temperature and low humidity environment, the defrosting can be completed in a short time, but the system parameters are difficult to reach the exit condition, and the internal machine will be too long due to the defrosting execution time. Unable to heat, the indoor heating effect is affected.
- the present invention aims to solve at least one of the technical problems in the above-mentioned techniques to some extent.
- the first object of the present invention is to provide a defrosting control method for an air conditioning system, which can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and its duration, without affecting the change. At the same time as the heat effect, the defrosting effect is guaranteed.
- a second object of the present invention is to provide a non-transitory computer readable storage medium.
- a third object of the present invention is to provide a defrosting control device for an air conditioning system.
- a fourth object of the present invention is to provide an air conditioning system.
- a defrosting control method for an air conditioning system includes the following steps: when the air conditioning system performs defrosting each time, the defrosting determined at the last defrosting is obtained. Exiting time, and controlling the air conditioning system to perform the defrosting according to the defrosting exit time determined at the last defrosting; in the process of performing the defrosting in the air conditioning system, obtaining the outdoor ambient temperature, and obtaining the outdoor tempering The outlet temperature of the heat exchanger; respectively determining the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger; if the outlet temperature of the outdoor heat exchanger is less than the first preset temperature and continuing for a preset time, When the outdoor ambient temperature is less than the second preset temperature, the forced defrosting time is obtained as the defrosting exit time of the air conditioner system during the next defrosting, and the storage is performed, wherein the forced defrosting time is greater than the air conditioning The time the system performed the defrosting this time.
- the defrosting exit time determined at the last defrosting is acquired, and the defrosting exit time determined according to the last defrosting is obtained.
- Control air conditioning system In this defrosting process, during the defrosting process of the air conditioning system, the outdoor ambient temperature is obtained, and the outlet temperature of the outdoor heat exchanger is obtained, and then the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger are respectively judged, if When the outlet temperature of the outdoor heat exchanger is less than the first preset temperature and continues for a preset time, and the outdoor ambient temperature is less than the second preset temperature, the forced defrosting time is obtained as the defrosting exit time of the air conditioner system during the next defrosting And store it. Therefore, the method can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, and ensure the defrosting effect without affecting the heat exchange effect.
- defrosting control method of the air conditioning system according to the above embodiment of the present invention may further have the following additional technical features:
- the outlet temperature of the outdoor heat exchanger is greater than or equal to a first preset temperature and continues for a preset time, or the outdoor environment
- the time during which the air conditioning system performs defrosting is used as the defrosting time of the next defrosting of the air conditioning system, and is stored.
- an initialization frost exit time is acquired, and the air conditioning system is controlled to perform the current defrosting according to the initialization frost exit time.
- the initialization frost exit time is used as the defrosting exit time of the air conditioner system during the next defrosting, and is stored.
- a second aspect of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the above-described defrosting control method of an air conditioning system.
- the non-transitory computer readable storage medium of the embodiment of the present invention can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof by performing the defrosting control method of the air conditioning system described above.
- the defrosting effect is ensured without affecting the heat exchange effect.
- a third aspect of the present invention provides a defrosting control device for an air conditioning system, including: a first obtaining module, configured to acquire a last defrosting each time the defrosting is performed in the air conditioning system Determining the defrosting time; the control module is configured to control the air conditioning system to perform the defrosting according to the defrosting time determined at the last defrosting; and the second obtaining module is configured to perform the tempering in the air conditioning system In the process of sub-defrosting, obtaining an outdoor ambient temperature, and obtaining an outlet temperature of the outdoor heat exchanger; a judging module, configured to respectively judge the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger; the control The module is further configured to acquire a forced defrosting time when the outlet temperature of the outdoor heat exchanger is less than a first preset temperature for a preset time and the outdoor ambient temperature is less than a second preset temperature The defrosting time of the air conditioning system during the next defrosting is stored and stored, wherein the forced
- each time the defrosting is performed by the air conditioning system the defrosting time determined by the last defrosting is obtained by the first acquiring module, and the control module is based on the last defrosting Determine the defrosting exit time to control the air conditioning system to perform this defrosting.
- the outdoor environment temperature is acquired by the second acquisition module, and the outlet temperature of the outdoor heat exchanger is obtained, and then the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger are respectively determined by the determination module.
- the control module acquires the forced defrosting time to serve as the next defrosting of the air conditioning system.
- the defrosting exits the time, it is stored. Therefore, the device can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, and ensure the defrosting effect without affecting the heat exchange effect.
- the defrosting control device of the air conditioning system according to the above embodiment of the present invention may further have the following additional technical features:
- the control module uses the time when the air conditioning system performs the defrosting time as the defrosting exit time of the air conditioner system during the next defrosting, and stores the defrosting time.
- the control module acquires an initialization frost exit time by the first acquisition module, and controls the air conditioning system according to the initialization frost exit time. This defrosting.
- the control module uses the initialization frost exit time as the defrosting exit time of the air conditioner system during the next defrosting, and stores the aging time.
- an embodiment of the fourth aspect of the present invention provides an air conditioning system including the above-described defrosting control device for an air conditioning system.
- the defrosting control device of the air conditioning system can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, without affecting the heat exchange effect. At the same time, the defrosting effect is guaranteed.
- FIG. 1 is a flow chart of a defrosting control method of an air conditioning system according to an embodiment of the present invention
- FIG. 2 is a logic diagram of a defrosting control method of an air conditioning system according to an embodiment of the present invention
- FIG. 3 is a block schematic diagram of a defrosting control apparatus of an air conditioning system according to an embodiment of the present invention.
- FIG. 1 is a flow chart of a defrosting control method of an air conditioning system according to an embodiment of the present invention.
- the defrosting control method of the air conditioning system may include the following steps:
- the air conditioning system when the air conditioning system performs defrosting for the first time, the initialization frost exit time is acquired, and the defrosting is performed by controlling the air conditioning system according to the initialization frost exit time.
- the defrosting is controlled by the air conditioning system according to the initialization frost exit time (which can be obtained for a large amount of experimental test data). If the air conditioning system is not entering the defrosting for the first time, the defrosting is performed by controlling the air conditioning system according to the last determined defrosting time.
- the outdoor ambient temperature Tout can be obtained in real time by the outdoor ambient temperature sensor, and the outlet temperature Tg of the outdoor heat exchanger can be obtained by a temperature sensor disposed at the outlet of the outdoor heat exchanger.
- the defrosting time of the air conditioning system is used as the defrosting time of the next defrosting of the air conditioning system, and is stored.
- the frost exit time is initialized as the defrosting time of the next defrosting of the air conditioning system, and is stored.
- the air conditioner system enters the defrosting for the first time as an example. After the air conditioning system enters the defrosting, obtain the initialization frost The time t1 is elapsed, and the air conditioning system is controlled to perform the current defrosting according to the initialization frost time t1, and during the defrosting process, the current outdoor ambient temperature Tout and the outdoor heat exchanger outlet temperature Tg are obtained and judged.
- the forced defrosting time is obtained as the defrosting time of the next defrosting of the air conditioning system. And store it so that the next time the air conditioning system enters the defrosting.
- the time during which the air conditioning system is defrosted this time (in this embodiment, the time during which the air conditioning system performs defrosting is the initialization frost exit time) is used as the defrosting exit time at the time of the next defrosting, and is stored. So that the next time the air conditioning system enters the defrosting.
- the forced defrosting time is not a fixed value, and the specific value needs to be determined based on the judgment result of the defrosting exit time determined at the last defrosting.
- the first entry of the defrosting by the air conditioning system is still taken as an example.
- the initialization frost exit time is t1.
- the defrosting exit time determined at the last defrosting is satisfied as the judgment condition is t1
- Tg ⁇ T1 and the ta time continues, or Tout ⁇ T2
- the defrosting exit time determined at the last defrosting is satisfied as the judgment condition is t1
- the defrosting exit time determined at the last defrosting is satisfied as the judgment condition is t1
- t3 and t4 can be calibrated according to the actual situation.
- the defrosting exit time at the next defrosting is determined according to the result of the previous judgment, so that the defrosting exit time fluctuation is small, and the defrosting effect is ensured. At the same time, restore the normal heating of the air conditioning system as soon as possible to improve user comfort.
- defrosting exit times are selected, and the defrosting exit time may be increased or decreased according to actual needs, and details are not described herein.
- the defrosting control method of the air conditioning system can adjust the next defrosting according to the outlet temperature and duration of the outdoor heat exchanger during the current defrosting, and the ambient temperature during defrosting. Exit time. This can increase the running time of the next defrosting in the case of thick frost and snow, and the defrosting can be completed in sufficient time.
- the defrosting exit time can be adjusted according to the system parameters.
- the defrosting time (initial value) helps to ensure the defrosting effect without affecting the subsequent heating, and restores the normal heating of the system as soon as possible, reducing the indoor unit's inability to heat the room. The effect of comfort.
- the defrosting control method of the air conditioning system when the air conditioning system performs defrosting each time, the defrosting time determined at the time of the last defrosting is acquired, and is determined according to the last defrosting.
- the defrosting exit time controls the air conditioning system to perform the defrosting.
- the outdoor ambient temperature is obtained, and the outlet temperature of the outdoor heat exchanger is obtained, and then the outdoor ambient temperature and the outdoor are respectively changed. The outlet temperature of the heat exchanger is judged.
- the forced defrosting time is obtained as the air conditioning system.
- the defrosting time of the defrosting time is stored and stored. Therefore, the method can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, and ensure the defrosting effect without affecting the heat exchange effect.
- the defrosting control device of the air conditioning system of the embodiment of the present invention may include: a first obtaining module 10, a control module 20, a second acquiring module 30, and a determining module 40.
- the first obtaining module 10 is configured to acquire a defrost exit time determined at the time of the last defrosting each time the air conditioning system performs defrosting.
- the control module 20 is configured to control the air conditioning system to perform the current defrosting according to the defrosting exit time determined at the last defrosting.
- the second obtaining module 30 is configured to acquire an outdoor ambient temperature during the current defrosting of the air conditioning system, and obtain an outlet temperature of the outdoor heat exchanger.
- the judging module 40 is configured to determine the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger, respectively.
- the control module 20 is further configured to: when the outlet temperature of the outdoor heat exchanger is less than the first preset temperature and last for a preset time, and the outdoor ambient temperature is less than the second preset temperature, obtain a forced defrosting time as the air conditioning system next time The defrosting time at the time of defrosting is stored and stored, wherein the forced defrosting time is greater than the time during which the air conditioning system performs defrosting.
- the control module 20 sets the time during which the air conditioning system performs defrosting as the defrosting time of the next defrosting of the air conditioning system, and stores it.
- the control module 20 acquires the initialization frost exit time through the first acquisition module 10, and controls the air conditioning system to perform the current defrosting according to the initialization frost exit time.
- the control module 20 sets the initialization frost exit time as the defrosting exit time at the time of the next defrosting of the air conditioning system, and stores it.
- the defrosting control device of the air conditioning system passes through the defrosting every time the air conditioning system performs defrosting
- An acquisition module acquires the defrost exit time determined at the last defrosting, and the control module controls the air conditioning system to perform the defrosting according to the defrosting exit time determined at the last defrosting.
- the outdoor environment temperature is acquired by the second acquisition module, and the outlet temperature of the outdoor heat exchanger is obtained, and then the outdoor ambient temperature and the outlet temperature of the outdoor heat exchanger are respectively determined by the determination module.
- the control module acquires the forced defrosting time to serve as the next defrosting of the air conditioning system.
- the defrosting exits the time, it is stored. Therefore, the device can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, and ensure the defrosting effect without affecting the heat exchange effect.
- embodiments of the present invention also provide a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by the processor, implements the above-described defrosting control method of the air conditioning system.
- the non-transitory computer readable storage medium of the embodiment of the present invention can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof by performing the defrosting control method of the air conditioning system described above.
- the defrosting effect is ensured without affecting the heat exchange effect.
- an embodiment of the present invention also proposes an air conditioning system including the above-described defrosting control device of the air conditioning system.
- the defrosting control device of the air conditioning system can adjust the exit time of the defrosting according to the outdoor environment and the outlet temperature of the heat exchanger and the duration thereof, without affecting the heat exchange effect. At the same time, the defrosting effect is guaranteed.
- 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” and “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.
- a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
- computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
- the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
- portions of the invention may be implemented in hardware, software, firmware or a combination thereof.
- multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system.
- a suitable instruction execution system For example, if implemented in hardware and in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: discrete with logic gates for implementing logic functions on data signals Logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.
- each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
- the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
- the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
- the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
- the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
- installation 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.
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Abstract
Description
Claims (10)
- 一种空调系统的化霜控制方法,其特征在于,包括以下步骤:当所述空调系统每次进行化霜时,获取上次化霜时确定的化霜退出时间,并根据上次化霜时确定的化霜退出时间控制所述空调系统进行本次化霜;在所述空调系统进行本次化霜的过程中,获取室外环境温度,并获取室外换热器的出口温度;分别对所述室外环境温度和所述室外换热器的出口温度进行判断;如果所述室外换热器的出口温度小于第一预设温度且持续预设时间、且所述室外环境温度小于第二预设温度,则获取强制化霜时间以作为所述空调系统下次化霜时的化霜退出时间,并进行存储,其中,所述强制化霜时间大于所述空调系统本次进行化霜的时间
- 如权利要求1所述的空调系统的化霜控制方法,其特征在于,在所述空调系统进行本次化霜的过程中,如果所述室外换热器的出口温度大于等于第一预设温度且持续预设时间、或者所述室外环境温度大于等于第二预设温度,则将所述空调系统本次进行化霜的时间作为所述空调系统下次化霜时的化霜退出时间,并进行存储。
- 如权利要求1或2所述的空调系统的化霜控制方法,其特征在于,当所述空调系统首次进行化霜时,获取初始化霜退出时间,并根据所述初始化霜退出时间控制所述空调系统进行本次化霜。
- 如权利要求3所述的空调系统的化霜控制方法,其特征在于,在所述空调系统进行首次化霜的过程中,如果所述室外换热器的出口温度大于等于第一预设温度且持续预设时间、或者所述室外环境温度大于等于第二预设温度,则将所述初始化霜退出时间作为所述空调系统下次化霜时的化霜退出时间,并进行存储。
- 一种非临时性计算机可读存储介质,其上存储有计算机程序,其特征在于,该程序被处理器执行时实现如权利要求1-4中任一项所述的空调系统的化霜控制方法。
- 一种空调系统的化霜控制装置,其特征在于,包括:第一获取模块,用于在所述空调系统每次进行化霜时,获取上次化霜时确定的化霜退出时间;控制模块,用于根据上次化霜时确定的化霜退出时间控制所述空调系统进行本次化霜;第二获取模块,用于在所述空调系统进行本次化霜的过程中,获取室外环境温度,并获取室外换热器的出口温度;判断模块,用于分别对所述室外环境温度和所述室外换热器的出口温度进行判断;所述控制模块还用于,在所述室外换热器的出口温度小于第一预设温度且持续预设时 间、且所述室外环境温度小于第二预设温度时,获取强制化霜时间以作为所述空调系统下次化霜时的化霜退出时间,并进行存储,其中,所述强制化霜时间大于所述空调系统本次进行化霜的时间。
- 如权利要求6所述的空调系统的化霜控制装置,其特征在于,在所述空调系统进行本次化霜的过程中,如果所述室外换热器的出口温度大于等于第一预设温度且持续预设时间、或者所述室外环境温度大于等于第二预设温度,所述控制模块则将所述空调系统本次进行化霜的时间作为所述空调系统下次化霜时的化霜退出时间,并进行存储。
- 如权利要求6或7所述的空调系统的化霜控制装置,其特征在于,当所述空调系统首次进行化霜时,所述控制模块通过所述第一获取模块获取初始化霜退出时间,并根据所述初始化霜退出时间控制所述空调系统进行本次化霜。
- 如权利要求8所述的空调系统的化霜控制装置,其特征在于,在所述空调系统进行首次化霜的过程中,如果所述室外换热器的出口温度大于等于第一预设温度且持续预设时间、或者所述室外环境温度大于等于第二预设温度,所述控制模块则将所述初始化霜退出时间作为所述空调系统下次化霜时的化霜退出时间,并进行存储。
- 一种空调系统,其特征在于,包括如权利要求6-9中任一项所述的空调系统的化霜控制装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CA3069355A CA3069355C (en) | 2017-10-18 | 2017-11-02 | Air conditioning system, and defrosting control method and device thereof |
US16/627,835 US11561020B2 (en) | 2017-10-18 | 2017-11-02 | Air conditioning system, and defrosting control method and device thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201710972577.2 | 2017-10-18 | ||
CN201710972577.2A CN107842970B (zh) | 2017-10-18 | 2017-10-18 | 空调系统及其化霜控制方法和装置 |
Publications (1)
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US11561020B2 (en) | 2023-01-24 |
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CN107842970B (zh) | 2019-10-01 |
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US20200141602A1 (en) | 2020-05-07 |
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