WO2020057223A1 - Defrosting control method and apparatus for multiple systems - Google Patents

Defrosting control method and apparatus for multiple systems Download PDF

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Publication number
WO2020057223A1
WO2020057223A1 PCT/CN2019/093827 CN2019093827W WO2020057223A1 WO 2020057223 A1 WO2020057223 A1 WO 2020057223A1 CN 2019093827 W CN2019093827 W CN 2019093827W WO 2020057223 A1 WO2020057223 A1 WO 2020057223A1
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Prior art keywords
defrost
circulation
defrosting
systems
time
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PCT/CN2019/093827
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French (fr)
Chinese (zh)
Inventor
杨明登
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宁波奥克斯电气股份有限公司
奥克斯空调股份有限公司
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Publication of WO2020057223A1 publication Critical patent/WO2020057223A1/en

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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
    • 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

Definitions

  • the present disclosure relates to the technical field of air conditioners, and in particular, to a multi-system defrosting control method and device.
  • central air conditioners on the market usually control the output with a coil temperature target or a pressure target.
  • the current defrost mode of most air conditioners is to switch to the cooling mode for defrosting after shutdown.
  • each system of the unit shuts down and switches to the cooling mode at the same time.
  • the amount of cold has a large impact on the indoor ambient temperature, resulting in a long period of inability to recover and causing discomfort to the human body.
  • the present disclosure aims to propose a multi-system defrosting control method to reduce the influence on the indoor temperature during the system defrosting.
  • a multi-system defrosting control method The multi-system is a plurality of circulation systems.
  • the multi-system defrosting control method includes:
  • N cyclic systems are divided into N / 2 dual system groups; if N is an odd number, the N cyclic systems are divided into (N-1) / 2 dual system groups and A single system
  • Defrost control is performed on the circulation system based on the grouped data of the dual system group and the single system.
  • the step of determining whether a plurality of the circulation systems in the heating mode meet a defrost condition by using the first time interval as a period includes:
  • each of the circulation systems satisfies that the coil outlet temperature is lower than the set defrost tube temperature or the compressor operation time exceeds the set defrost interval time. First, the corresponding circulatory system meets the defrost conditions.
  • performing defrost control on the circulation system according to the group data of the dual system group and the single system includes:
  • the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
  • the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
  • the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems.
  • the compressor operating hours of the two circulation systems are compared. If the compressor operating hours of the two circulation systems are different, Then control the circulation system with a long operating time of the compressor to enter a defrost mode; if the compressors of the two circulation systems have the same operating time, randomly control one of the circulation systems to enter a defrost mode.
  • the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems. Also includes:
  • the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems. Also includes:
  • the multi-system defrosting control method described in the present disclosure has the following advantages:
  • the multi-system defrosting control method described in this embodiment groups N cycle systems that meet the defrosting conditions, and performs defrost control on the N cycle systems based on the grouped data.
  • This grouping method can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode are equal or similar. While ensuring the defrost efficiency, it greatly reduces the influence on the indoor temperature during the defrost and reduces the fluctuation. To avoid causing human discomfort; reheating after the defrost ends, and less energy is required to balance the temperature drop during the defrost, thereby greatly reducing the energy consumption caused by the defrost and having energy saving effects; The time of temperature fluctuation caused by small balance defrosting greatly saves time cost.
  • Another object of the present disclosure is to provide a multi-system defrosting control device to reduce the influence of the system on the indoor temperature during defrosting.
  • a multi-system defrosting control device includes:
  • a judging module for judging whether a plurality of the circulation systems in a heating mode meet a defrost condition with a first time interval as a cycle
  • a statistics module configured to count the number N of the circulation systems that satisfy the defrost conditions
  • a grouping module configured to divide the N cyclic systems into N / 2 dual system groups if N is an even number; if N is an odd number, divide the N cyclic systems into (N-1) / 2 dual system groups and one single system;
  • a control module configured to perform defrost control on the circulation system according to the grouped data of the dual system group and the single system.
  • the judgment unit includes:
  • An acquisition module for detecting the coil outlet temperatures of a plurality of said circulation systems in a heating mode simultaneously at a first time interval as a cycle, acquiring a set defrost tube temperature and a set defrost interval time 2.
  • a judging module which is used to judge whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
  • performing defrost control on the circulation system according to the group data of the dual system group and the single system includes:
  • the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
  • the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
  • control unit further includes a comparison module. If the circulation system is a dual system group, the control unit is controlled according to the coil outlet temperature and the compressor operating time of the two circulation systems. Defrosting the circulation system in the dual system group includes:
  • the comparison module is controlled to compare the operating hours of the compressors of the two circulation systems. If the running times of the compressors are different, the cycle system with a long running time of the compressor is controlled to enter a defrost mode; if the running times of the compressors of the two cycle systems are the same, one of the cycle systems is randomly controlled to enter Defrost mode.
  • the multi-system defrosting control device has similar advantages to the above-mentioned multi-system defrosting control method with respect to the prior art, and is not repeated here.
  • FIG. 1 is a flowchart of a multi-system defrosting control method according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of step S1 according to an embodiment of the present disclosure
  • step S4 is a flowchart of step S4 according to an embodiment of the present disclosure.
  • step S43 is a flowchart of step S43 according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a defrost control device according to an embodiment of the present disclosure.
  • 1-judgment unit 11-acquisition module, 12-judgment module, 2-statistics unit, 3-grouping unit, 4-control unit, 41-comparison module.
  • the multi-system is a plurality of circulation systems mainly composed of a compressor, a four-way valve, a throttle valve, an evaporator, and a condenser.
  • the multi-system defrosting control method includes:
  • N is an even number, divide the N cyclic systems into N / 2 dual system groups; if N is an odd number, divide the N cyclic systems into (N-1) / 2 dual systems Groups and a single system;
  • a plurality of circulation systems in the heating mode are judged once every time that a first time interval elapses, and it is determined whether each of the plurality of circulation systems meets a defrost condition. If N of the multiple circulation systems meet the defrost conditions, the number N is counted. Then determine the parity of the number N. If N is an even number, the N cyclic systems are divided into N / 2 dual system groups, each of which includes two cyclic systems; if N is an odd number, the The N circulation systems are divided into (N-1) / 2 dual system groups and a single system. Each dual system group includes two circulation systems, and a single system includes one circulation system.
  • the circulation system in the dual system group choose to control one circulation system in the dual system group to perform defrosting first.
  • control the other circulation in the dual system group control the other circulation in the dual system group.
  • the system performs defrosting; for the circulation system in the single system, directly controls the circulation system in the single system for defrosting.
  • the circulation system enters the defrost mode from the heating mode, the compressor of the circulation system is stopped, the internal and external fans are stopped, the four-way valve is switched to the cooling mode, and then the compressor is started and the external fan is started.
  • the refrigerant is compressed into high-temperature and high-pressure gas by the compressor, enters the condenser through the four-way valve, exotherms and defrosts under the action of the external fan, and is throttled to a low-temperature gas by the throttle valve.
  • the defrosting circulation system stops outputting heat to the room, and the room temperature will drop.
  • the multi-system defrost control method described in this embodiment ensures that when some of the N circulation systems enter the defrost mode, another Part of the circulation system will still maintain the heating mode and output heat to the room.
  • the circulation system that first enters the defrost mode will exit the defrost mode, resume the heat output to the room, and reduce The effect on the indoor temperature during the defrosting period is shown.
  • the original defrosting control method was to switch all cooling systems to the cooling mode at the same time, and then perform defrosting. At this time, the air conditioner stopped outputting heat to the room.
  • This defrosting control method first had a large impact on the indoor ambient temperature, making the temperature The fluctuation range is large, which is likely to cause human discomfort. Secondly, when reheating after the defrost ends, it is necessary to balance the temperature drop during the defrost and waste energy. For an air-conditioning unit with multiple circulation systems, the more circulation systems, the more The greater the effect of the frost control method on the indoor temperature, the more energy is wasted.
  • the multi-system defrosting control method described in this embodiment groups N cycle systems that meet the defrosting conditions, and performs defrost control on the N cycle systems based on the grouped data. This grouping method can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode are equal or similar.
  • a defrost time limit of the circulation system is also set.
  • the time taken by the circulation system from entering the defrost mode to exiting the defrost mode is not greater than the defrost time limit. This ensures a better defrost effect. At the same time, it can prevent the room temperature from falling too much due to the long defrosting time.
  • the first time interval set in this embodiment is not less than the defrosting time limit.
  • the first time interval is less than the defrost time limit.
  • the defrosting cycle in the next defrosting cycle will start defrosting, causing all the circulating systems that meet the defrosting conditions to perform defrosting at the same time. Setting the first time interval is not less than the defrost time limit to avoid the above situation.
  • multi-system defrosting control method described in this embodiment is also applicable to a multi-system water-cooled unit.
  • step S1 includes steps S11 and S12.
  • each cycle of the heating system in the heating mode is detected and read simultaneously every time the first time interval elapses, and the disks of each cycle in the multiple cycle systems are detected.
  • the outlet temperature of the tube is read while detecting the temperature of the defrost tube that has been set in advance, the preset defrost interval time, and the compressor operating time of each of the plurality of circulation systems. Then the coil outlet temperature of each circulation system is compared with the preset defrost tube temperature in turn, and the compressor operating time of each circulation system is compared with the preset defrost interval time. If the system meets the coil outlet temperature lower than the defrost tube temperature or the compressor running time exceeds the defrost interval time, then it is judged that the circulation system meets the defrost conditions.
  • the coil outlet temperature and the compressor running time of each circulation system in the multiple circulation systems are used to determine whether each circulation system meets the defrost conditions, which can ensure that each circulation system needs defrost.
  • Defrost can be carried out in time to prevent the defrosting of the circulation system from affecting the normal operation of the air conditioner.
  • the widest range can ensure that all the circulatory systems can be defrosted after working for a certain period of time to avoid omissions.
  • the first time interval described in this embodiment is the detection and data reading cycle.
  • the defrost tube temperature and defrost interval time are set fixed values and the defrost tube temperature and defrost interval set for each circulation system. The time is the same.
  • the temperature range of the defrost tube is preferably 0 to -7 ° C, and the temperature of the defrost tube is preferably -5 ° C.
  • the coil outlet temperature is the temperature of the bottom pipe outlet of the condenser of the outdoor unit, and is detected by a defrost line sensor provided at the bottom pipe outlet of the condenser.
  • a defrost line sensor provided at the bottom pipe outlet of the condenser.
  • the coil outlet temperature can be used to judge the condenser temperature.
  • the outer coil temperature is the tube temperature of the condenser coil of the outdoor unit, and is detected by a temperature sensor provided at the U-shape of the pipeline. During the defrost process, the temperature of the outer coil can be used to determine whether the defrost needs to be ended.
  • step S4 includes steps S41, S42, and S43.
  • the circulation system is a dual system group, control the circulation system in the dual system group to perform defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems.
  • step S42 and step S43 are parallel steps.
  • each of the N circulation systems satisfying the defrosting condition is judged, and it is determined whether each circulation system belongs to a single system or a multi-system group. If a circulatory system belongs to a single system, directly control the circulatory system for defrosting; if a circulatory system belongs to a dual system group, control two circulatory systems in the dual system group where the circulatory system is located, and The defrosting sequence of the two circulation systems is determined according to the coil outlet temperature and the compressor running time of the two circulation systems. The sequence is that one of the two circulation systems defrosts and then performs another cycle. System defrost.
  • each circulation system belongs to a single system or a multiple system group, when N is an odd number, the circulation systems in the single system and the multiple system group can be defrosted at the same time, which accelerates the defrost speed and improves Out of efficiency.
  • step S43 includes:
  • steps S431 and S432 are parallel steps
  • steps S433 and S434 are parallel steps.
  • the coil exit temperatures of the two circulation systems in the dual system group are first compared. If the coil exit temperatures of the two circulation systems are different, the circulation system with a smaller coil exit temperature is selected to preferentially enter the defrosting. Mode, wait until the circulatory system in the defrost mode has priority to defrost in another circulatory system after the defrosting is completed; if the coil outlet temperatures of the two circulatory systems are the same, compare the compressor operating time of the two circulatory systems and select the control The circulatory system with long compressor running time will enter the defrost mode first. Among them, the low coil outlet temperature and the long compressor operating time both represent a high degree of defrosting demand of the circulation system, and the smaller the coil outlet temperature is higher than the compressor operating time.
  • the coil system outlet temperature and the compressor operating time of the circulation system are used to determine the circulation system that preferentially enters the defrost mode, so that the circulation system with a higher degree of defrost demand can be preferentially entered into the defrost mode, which optimizes the Frost method, the allocation of defrosting resources is more reasonable.
  • step S43 further includes:
  • S436 Determine whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, and the outer coil temperature and defrost time of the circulation system entering the defrost mode. If it is satisfied, control the circulation system to exit the defrost mode;
  • the preset outer coil temperature limit, the preset defrost time limit, and the outer coil temperature and defrost time of the circulation system that preferentially enters the defrost mode in the dual system group are first read. . Then according to the outer coil temperature and defrosting time of the circulation system that enters the defrost mode preferentially, the preset outer coil temperature limit and defrost time limit are used to determine whether the circulation system that preferentially enters the defrost mode meets the first defrost End condition. If it meets the control, the circulatory system that enters the defrost mode first will exit the defrost mode. After the circulation system that enters the defrosting mode preferentially starts the heating mode, another circulation system in the dual system group is controlled to enter the defrosting mode.
  • data such as the outer coil temperature and defrosting time of the circulation system that preferentially enters the defrost mode, the preset outer coil temperature limit, and the defrost time limit and other data are used to comprehensively determine the cycle of preferentially entering the defrosting mode.
  • the system satisfies the first defrost end condition can make the circulation system that enters the defrost mode preferentially exit the defrost mode in time when it is not necessary to continue the defrost, and can make the other circulation system in the dual system group faster Enter the defrost mode, speeding up the defrost speed and improving efficiency.
  • the outer coil temperature limit and the defrost time limit are set fixed values, and the outer coil temperature limit and the defrost time limit set for each circulation system are the same.
  • the outer coil temperature is the tube temperature of the condenser coil of the outdoor unit, and is detected by a temperature sensor provided at the U-shape of the pipeline.
  • the defrost time is counted from the time when the circulation system enters the defrost mode.
  • the first defrosting end condition described in this embodiment includes: the coil outlet temperature is not lower than the defrost tube temperature, the outer coil temperature is not less than the outer coil temperature limit, or the defrost time is greater than the defrost time limit.
  • the temperature limit of the outer coil is preferably 12 ° C.
  • the limit of the defrost time is preferably 10 min.
  • the coil outlet temperature is not lower than the defrosting tube temperature
  • the outer coil temperature is not less than the outer coil temperature limit, which means that the temperature of the outdoor condenser of the circulation system has risen to a better value, which means that a better Frost effect
  • the defrost time is greater than the defrost time limit, it means that the defrost has been performed for a long enough time, which means that it will not continue to defrost and will not affect the normal operation of the circulation system.
  • the circulatory system that preferentially enters the defrost mode in the dual system group can exit the defrost mode in time when a better defrost effect has been achieved, saving energy; avoiding unnecessary defrosts and saving time; It also avoids that the indoor temperature drop caused by the defrosting time is too long.
  • step S43 further includes:
  • S439 Determine whether the other circulation system entering the defrost mode satisfies the second defrost end condition according to the external coil mild defrost time of the another circulation system, and if it is satisfied, control the other circulation system to exit the The defrost mode is described.
  • the outer coil temperature and the defrost time of the circulation system in the dual system group after entering the defrost mode are read, and then according to the outer coil temperature and the defrost time of the circulation system in the defrost mode after entering the
  • the preset outer coil temperature limit and defrost time limit are used to determine whether the circulation system that enters the defrost mode after the second defrost end condition is met. If it is satisfied, the control enters the defrost mode and exits the defrost mode. .
  • the data of the outer coil temperature and the defrost time of the circulation system that enters the defrost mode after passing the comprehensive judgment are entered after entering the defrost mode cycle. Whether the system meets the second defrosting end condition can make the circulation system that enters the defrosting mode later can exit the defrosting mode in time when it is not necessary to continue the defrosting, which speeds up the defrosting process and improves the efficiency.
  • the second defrost end conditions described in this embodiment include: the coil outlet temperature is not lower than the defrost tube temperature, the outer coil temperature is not less than the outer coil temperature limit, the defrost time is greater than the defrost time limit, and the remote control
  • the controller controls the switching of the air conditioning mode or shuts down.
  • the remote controller controls the switching of the air-conditioning mode, which means that the working mode of the air-conditioner has been actively changed, and the de-frost mode is actively exited.
  • this embodiment is different from this embodiment in that the compressor operating time is: if the air conditioner has been turned on but has not been defrosted, the compressor operating time is from the start of the compressor Timing; if the air conditioner has been turned on and has been defrosted, the compressor running time will be counted from the end of the last defrost.
  • the defrost interval time is preferably set to 60min; if the air conditioner is turned on and the defrosting has been performed, the defrost interval time setting range is preferably 30 to 60min, preferably the defrost interval is set to 40min.
  • the timing of the compressor running time can be determined by two timing methods, which can determine the appropriate defrost timing for different conditions of the air conditioner, which is flexible and adaptable.
  • the defrost control device includes:
  • a judging unit 1 for judging whether a plurality of the circulation systems in a heating mode meet a defrost condition with a first time interval as a cycle;
  • a counting unit 2 for counting the number N of the circulation systems satisfying the defrost conditions
  • a control unit 4 is configured to perform defrost control on the circulation system according to the group data of the dual system group and the single system.
  • the judging unit 1 judges a plurality of circulation systems in the heating mode every time a first time interval elapses, and determines whether each of the plurality of circulation systems meets a defrost condition. If there are N circulation systems in the multiple circulation systems that meet the defrost conditions, the statistical unit 2 counts the number N. Then the judging unit 1 continues to judge the parity of the number N. If N is an even number, the grouping unit 3 divides the N cyclic systems into N / 2 dual system groups, each of which includes two cyclic systems; If N is an odd number, the grouping unit 3 divides the N cyclic systems into (N-1) / 2 dual system groups and a single system.
  • Each dual system group includes two cyclic systems, and the single system includes A circulatory system. Then for the circulation system in the dual system group, the control unit 4 chooses to control one circulation system in the dual system group to perform defrosting first. When the circulation system exits the defrost mode and starts to run the heating mode, the control in the dual system group is controlled. The other circulation system performs defrosting; for the circulation system in the single system, the control unit 4 directly controls the circulation system in the single system to perform defrosting.
  • the grouping unit 3 in the multi-system defrosting control device described in this embodiment groups N cycle systems that meet the defrost conditions, and the control unit 4 performs defrost control on the N cycle systems according to the grouped data, which can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode in the N circulation systems are equal or similar. While ensuring the defrost efficiency, it greatly reduces the impact on the indoor temperature during the defrost period.
  • the multi-system defrosting control device is different from this embodiment in that, as shown in FIG. 5, the determination unit 1 in this embodiment includes:
  • a judging module 12 is configured to judge whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
  • the acquisition module 11 performs detection and data reading on a plurality of circulation systems in the heating mode at the same time every time the first time interval elapses, and detects each circulation system in the plurality of circulation systems.
  • the temperature of the coil outlet is measured while reading the temperature of the defrost tube that has been set in advance, the preset defrost interval time, and the compressor running time of each of the multiple circulation systems.
  • the judgment module 12 sequentially compares the coil outlet temperature of each circulation system with a preset defrost tube temperature, and simultaneously compares the compressor operating time of each circulation system with a preset defrost interval. If a certain circulation system satisfies that the coil outlet temperature is lower than the defrost pipe temperature or the compressor operation time exceeds the defrost interval time, the judgment module 12 judges that the circulation system meets the defrost conditions.
  • the determination module 12 in this embodiment determines whether each circulation system meets the defrost conditions by using the coil outlet temperature and the compressor running time of each of the plurality of circulation systems, which can ensure that each circulation system is Defrost can be carried out in time when defrosting is needed, so as to prevent the defrosting of the circulation system from affecting the normal operation of the air conditioner.
  • the judging module 12 judges whether the circulating system meets the defrost condition by using the coil outlet temperature of the circulating system, and the judgment result is more accurate; when the compressor running time of the circulating system determines whether the circulating system meets the defrost condition, It covers the widest range, which can ensure that all the circulatory systems can perform defrosting after a certain period of time to avoid omissions.
  • the multi-system defrosting control device is different from this embodiment in that, in combination with FIG. 5, the control unit 4 controls the cycle according to the group data of the dual system group and the single system.
  • the system's defrost control includes:
  • the control judgment module 12 judges the packet data
  • the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
  • the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
  • the control unit 4 first controls the judgment module 12 to judge each of the N cycle systems that satisfy the defrost conditions, and determine whether each cycle system belongs to a single system or a multi-system group. If a circulation system belongs to a single system, the control unit 4 directly controls the circulation system to perform defrosting; if a circulation system belongs to a dual system group, control two circulation systems in the dual system group where the circulation system is located to perform defrost. Defrost, and the defrosting sequence of the two circulation systems is determined according to the coil outlet temperature and the compressor operating time of the two circulation systems, which are performed after the defrost of one of the two circulation systems is completed. Defrost of another circulation system.
  • control unit 4 controls the judgment module 12 to determine whether each cyclic system belongs to a single system or a multi-system group, so that when N is an odd number, the cyclic systems in the single system and the multi-system group can be defrosted simultaneously. Accelerates defrosting speed and improves efficiency.
  • the multi-system defrosting control device is different from this embodiment in that, as shown in FIG. 5, the control unit 4 in this embodiment includes a comparison module 41.
  • controlling the circulation system in the dual system group to perform defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems includes:
  • the control comparison module 41 compares the coil outlet temperatures of the two circulation systems
  • control comparison module 41 compares the compressor running times of the two circulation systems
  • the cycle systems controlling the compressor operating time to enter a defrost mode If the compressor operating hours of the two circulation systems are different, the cycle systems controlling the compressor operating time to enter a defrost mode; if the compressor operating hours of the two circulation systems are the same , One of the circulation systems is randomly controlled to enter a defrost mode.
  • the control unit 4 first controls the comparison module 41 to compare the coil exit temperatures of the two circulation systems in the dual system group. If the coil exit temperatures of the two circulation systems are different, the control unit 4 selects the control coil The circulatory system with a small outlet temperature first enters the defrosting mode. After the defrosting of the cyclic system that enters the defrosting mode preferentially, the other circulatory system performs defrosting. If the coil outlet temperatures of the two cyclic systems are the same, the comparison module 41 Comparing the operating hours of the compressors of the two circulation systems, the control unit 4 chooses to control the circulation system with a long operating time of the compressor to enter the defrost mode first.
  • control unit 4 determines the circulation system that preferentially enters the defrosting mode through the coil outlet temperature of the circulation system and the compressor operating time, so that the circulation system with a higher degree of defrosting demand can enter the defrosting mode.
  • the defrosting method was optimized, and the defrosting resource allocation was more reasonable.
  • this embodiment is different from this embodiment in that if the circulation system in the control unit 4 is a dual system group, then according to the coil outlets of the two circulation systems Controlling temperature and the compressor operating time for the defrosting of the circulation system in the dual system group further includes:
  • the control acquisition module 11 acquires the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode;
  • the control judgment module 12 judges whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode. If yes, control the circulation system to exit the defrost mode;
  • the control unit 4 first controls the acquisition module 11 to read the preset outer coil temperature limit, the preset defrost time limit, and the circulation system of the dual system group that preferentially enters the defrost mode. Outer coil temperature and defrosting time; then, the control judgment module 12 judges priority entry based on the outer coil temperature and defrosting time of the circulation system that preferentially enters the defrosting mode, the preset outer coil temperature limit and the defrosting time limit. Whether the circulation system in the defrost mode meets the first defrost end condition.
  • the circulation system that enters the defrost mode preferentially exits the defrost mode; after the circulation system that enters the defrost mode preferentially starts the heating mode, the dual system group is controlled. The other circulatory system is in defrost mode.
  • control unit 4 controls the judgment module 12 to comprehensively judge the data such as the outer coil temperature and the defrost time of the circulation system that preferentially enters the defrost mode, the preset outer coil temperature limit, and the defrost time limit. Whether the circulation system that enters the defrost mode preferentially meets the first defrost end condition, can make the circulation system that enters the defrost mode preferentially exit the defrost mode in time when it is not necessary to continue the defrost, and can make the The other circulation system enters the defrost mode faster, which speeds up the defrost speed and improves the efficiency.
  • this embodiment is different from this embodiment in that if the circulation system in the control unit 4 is a dual system group, then according to the coil outlets of the two circulation systems Controlling temperature and the compressor operating time for the defrosting of the circulation system in the dual system group further includes:
  • the control judgment module 12 judges whether the other circulation system entering the defrost mode satisfies a second defrost end condition according to the outer coil temperature and the defrost time of the other circulation system, and controls the other circulation system if it is satisfied Exit the defrost mode.
  • control unit 4 first controls the acquisition module 11 to read the outer coil temperature and the defrosting time of the circulation system that enters the defrost mode after the dual system group, and then controls the judgment module 12 to enter the defrost mode according to the The outer coil temperature and defrosting time of the circulation system, the preset outer coil temperature limit, and the defrost time limit determine whether the circulation system that enters the defrost mode after the second defrost end condition is satisfied.
  • the circulatory system entering the defrost mode exits the defrost mode.
  • control unit 4 controls the judgment module 12 to pass through the external coil temperature and defrost time of the circulatory system of the defrost mode after passing, and the preset external coil temperature limit and defrost time limit are comprehensively judged. Whether the circulation system that enters the defrost mode later meets the second defrost end condition, enables the circulation system that enters the defrost mode to exit the defrost mode in time when it is not necessary to continue the defrost, which accelerates the defrost process and improves Out of efficiency.

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Abstract

Provided are a defrosting control method and apparatus for multiple systems. The multiple systems are multiple circulating systems. The defrosting control method for multiple systems comprises: with a first time interval as a cycle, determining whether the multiple circulating systems in a heating mode meet defrosting conditions; counting the number N of the circulating systems that meet the defrosting conditions; if N is an even number, dividing the N circulating systems into N/2 dual system groups; if N is an odd number, dividing the N circulating systems into (N-1)/2 dual system groups and one single system; and performing defrosting control on the circulating systems according to grouping data of the dual system groups and the single system. The defrosting control method for multiple systems of the present disclosure can reduce the impact on indoor temperature during defrosting, can reduce energy consumption caused by defrosting, can reduce the time required for balancing a temperature fluctuation caused by defrosting, and can save on time costs.

Description

一种多***的除霜控制方法及装置Multi-system defrosting control method and device 技术领域Technical field
本公开涉及空调器技术领域，特别涉及一种多***的除霜控制方法及装置。The present disclosure relates to the technical field of air conditioners, and in particular, to a multi-system defrosting control method and device.
背景技术Background technique
目前，市场***空调通常以盘管温度目标或压力目标，控制输出。这些目前大部分空调的除霜模式为停机之后，转制冷模式进行除霜；然而当双***甚至多***、制热能力较大的机组进行除霜时，机组各***同时停机转制冷模式，输出冷量，对室内环境温度影响较大，导致较长时间无法恢复，引起人体不适。At present, central air conditioners on the market usually control the output with a coil temperature target or a pressure target. The current defrost mode of most air conditioners is to switch to the cooling mode for defrosting after shutdown. However, when dual-system or even multi-system units with larger heating capacity perform defrosting, each system of the unit shuts down and switches to the cooling mode at the same time. The amount of cold has a large impact on the indoor ambient temperature, resulting in a long period of inability to recover and causing discomfort to the human body.
发明内容Summary of the Invention
有鉴于此，本公开旨在提出一种多***的除霜控制方法，以减小***除霜期间对室内温度的影响。In view of this, the present disclosure aims to propose a multi-system defrosting control method to reduce the influence on the indoor temperature during the system defrosting.
为达到上述目的，本公开的技术方案是这样实现的：To achieve the above objective, the technical solution of the present disclosure is implemented as follows:
一种多***的除霜控制方法，所述多***为多个循环***，所述多***的除霜控制方法包括：A multi-system defrosting control method. The multi-system is a plurality of circulation systems. The multi-system defrosting control method includes:
以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；Determine whether a plurality of the circulation systems in the heating mode meet a defrost condition by using the first time interval as a cycle;
统计满足除霜条件的所述循环***的数量N；Count the number N of the circulation systems that meet the defrost conditions;
若N为偶数，则将所述N个循环***分为N/2个双***组；若N为奇数，则将所述N个循环***分为(N-1)/2个双***组和一个单***；If N is an even number, the N cyclic systems are divided into N / 2 dual system groups; if N is an odd number, the N cyclic systems are divided into (N-1) / 2 dual system groups and A single system
根据所述双***组和所述单***的分组数据对所述循环***进行 除霜控制。Defrost control is performed on the circulation system based on the grouped data of the dual system group and the single system.
进一步的，所述以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件包括：Further, the step of determining whether a plurality of the circulation systems in the heating mode meet a defrost condition by using the first time interval as a period includes:
以第一时间间隔为周期，同时检测处于制热模式下的各所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；Taking the first time interval as a cycle, simultaneously detecting the coil outlet temperature of each of the circulation systems in the heating mode to obtain a set defrost tube temperature, a set defrost interval time, and a plurality of the circulation systems Compressor running time;
分别判断各所述循环***是否满足所述盘管出口温度低于所述设定的除霜管温或所述压缩机运行时间超过所述设定的除霜间隔时间，如满足二者条件之一，则对应的循环***满足除霜条件。It is judged whether each of the circulation systems satisfies that the coil outlet temperature is lower than the set defrost tube temperature or the compressor operation time exceeds the set defrost interval time. First, the corresponding circulatory system meets the defrost conditions.
进一步的，根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制包括：Further, performing defrost control on the circulation system according to the group data of the dual system group and the single system includes:
对所述分组数据进行判断；Judging the packet data;
若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；If the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。If the circulation system is a dual system group, the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
进一步的，若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜包括：Further, if the circulation system is a dual system group, the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems. include:
对两个所述循环***的所述盘管出口温度进行比较；Comparing the coil outlet temperatures of the two circulation systems;
若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；If the coil outlet temperatures of the two circulation systems are different, controlling the circulation system with a lower coil outlet temperature to enter a defrost mode;
若两个所述循环***的所述盘管出口温度相同，则对两个所述循环***的所述压缩机运行时间进行比较，若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。If the coil outlet temperatures of the two circulation systems are the same, then the compressor operating hours of the two circulation systems are compared. If the compressor operating hours of the two circulation systems are different, Then control the circulation system with a long operating time of the compressor to enter a defrost mode; if the compressors of the two circulation systems have the same operating time, randomly control one of the circulation systems to enter a defrost mode.
进一步的，若所述循环***为双***组，则根据两个所述循环*** 的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：Further, if the circulation system is a dual system group, the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems. Also includes:
获取设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间；Obtaining the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode;
根据设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间判断是否满足第一除霜结束条件，若满足则控制所述循环***退出所述除霜模式；Determine whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, and the outer coil temperature and defrost time of the circulation system entering the defrost mode. Controlling the circulatory system to exit the defrosting mode;
控制所述双***组中的另一循环***进入除霜模式。Control another circulation system in the dual system group to enter a defrost mode.
进一步的，若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：Further, if the circulation system is a dual system group, the circulation system in the dual system group is controlled for defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems. Also includes:
获取进入除霜模式的所述另一循环***的外盘管温和除霜时间；Obtaining a mild defrosting time of the outer coil of the another circulation system entering the defrosting mode;
根据所述另一循环***的外盘管温和除霜时间判断进入除霜模式的所述另一循环***是否满足第二除霜结束条件，若满足则控制所述另一循环***退出所述除霜模式。Judging whether the other circulation system entering the defrost mode satisfies the second defrost end condition according to the outer coil mild defrost time of the another circulation system, and if it is satisfied, controlling the other circulation system to exit the defrost Frost pattern.
相对于现有技术，本公开所述的多***的除霜控制方法具有以下优势：Compared with the prior art, the multi-system defrosting control method described in the present disclosure has the following advantages:
本实施例所述的多***的除霜控制方法将满足除霜条件的N个循环***进行分组，根据分组数据对N个循环***进行除霜控制，这种分组方法可保证N个循环***中处于除霜模式的循环***的数量和处于制热模式的循环***的数量相等或相近，在保证除霜效率的同时，极大的减小了除霜期间对室内温度的影响，减小了波动，避免引起人体不适；除霜结束后重新制热、平衡除霜期间温度的下降所需的能量较少，从而极大的减小了除霜带来的能量消耗，具备节能的功效；能够减小平衡除霜带来的温度波动的时间，极大的节约了时间成本。The multi-system defrosting control method described in this embodiment groups N cycle systems that meet the defrosting conditions, and performs defrost control on the N cycle systems based on the grouped data. This grouping method can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode are equal or similar. While ensuring the defrost efficiency, it greatly reduces the influence on the indoor temperature during the defrost and reduces the fluctuation. To avoid causing human discomfort; reheating after the defrost ends, and less energy is required to balance the temperature drop during the defrost, thereby greatly reducing the energy consumption caused by the defrost and having energy saving effects; The time of temperature fluctuation caused by small balance defrosting greatly saves time cost.
本公开的另一目的在于提出一种多***的除霜控制装置，以减小***除霜期间对室内温度的影响。Another object of the present disclosure is to provide a multi-system defrosting control device to reduce the influence of the system on the indoor temperature during defrosting.
为达到上述目的，本公开的技术方案是这样实现的：To achieve the above objective, the technical solution of the present disclosure is implemented as follows:
一种多***的除霜控制装置，所述多***的除霜控制装置包括：A multi-system defrosting control device. The multi-system defrosting control device includes:
判断模块，其用于以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；A judging module for judging whether a plurality of the circulation systems in a heating mode meet a defrost condition with a first time interval as a cycle;
统计模块，其用于统计满足除霜条件的所述循环***的数量N；A statistics module, configured to count the number N of the circulation systems that satisfy the defrost conditions;
分组模块，其用于若N为偶数，则将所述N个循环***分为N/2个双***组；若N为奇数，则将所述N个循环***分为(N-1)/2个双***组和一个单***；A grouping module configured to divide the N cyclic systems into N / 2 dual system groups if N is an even number; if N is an odd number, divide the N cyclic systems into (N-1) / 2 dual system groups and one single system;
控制模块，其用于根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制。A control module configured to perform defrost control on the circulation system according to the grouped data of the dual system group and the single system.
进一步的，所述判断单元包括：Further, the judgment unit includes:
获取模块，其用于以第一时间间隔为周期，同时检测处于制热模式下的多个所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；An acquisition module for detecting the coil outlet temperatures of a plurality of said circulation systems in a heating mode simultaneously at a first time interval as a cycle, acquiring a set defrost tube temperature and a set defrost interval time 2. A plurality of compressor operating hours of the circulation system;
判断模块，其用于分别判断多个所述循环***是否满足所述盘管出口温度低于所述除霜管温或所述压缩机运行时间超过所述除霜间隔时间。A judging module, which is used to judge whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
进一步的，所述控制单元中根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制包括：Further, in the control unit, performing defrost control on the circulation system according to the group data of the dual system group and the single system includes:
控制所述判断模块对所述分组数据进行判断；Controlling the judging module to judge the packet data;
若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；If the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。If the circulation system is a dual system group, the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
进一步的，所述控制单元还包括比较模块，所述控制单元中若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜包括：Further, the control unit further includes a comparison module. If the circulation system is a dual system group, the control unit is controlled according to the coil outlet temperature and the compressor operating time of the two circulation systems. Defrosting the circulation system in the dual system group includes:
控制所述比较模块对两个所述循环***的所述盘管出口温度进行比较；Controlling the comparison module to compare the coil outlet temperatures of the two circulation systems;
若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；If the coil outlet temperatures of the two circulation systems are different, controlling the circulation system with a lower coil outlet temperature to enter a defrost mode;
若两个所述循环***的所述盘管出口温度相同，则控制所述比较模块对两个所述循环***的所述压缩机运行时间进行比较，若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。If the coil outlet temperatures of the two circulation systems are the same, then the comparison module is controlled to compare the operating hours of the compressors of the two circulation systems. If the running times of the compressors are different, the cycle system with a long running time of the compressor is controlled to enter a defrost mode; if the running times of the compressors of the two cycle systems are the same, one of the cycle systems is randomly controlled to enter Defrost mode.
所述多***的除霜控制装置与上述多***的除霜控制方法相对于现有技术所具有的优势类似，在此不再赘述。The multi-system defrosting control device has similar advantages to the above-mentioned multi-system defrosting control method with respect to the prior art, and is not repeated here.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
构成本公开的一部分的附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The exemplary embodiments of the present disclosure and the description thereof are used to explain the present disclosure, and do not constitute an improper limitation on the present disclosure. In the drawings:
图1为本公开实施例所述的多***的除霜控制方法的流程图；1 is a flowchart of a multi-system defrosting control method according to an embodiment of the present disclosure;
图2为本公开实施例所述的步骤S1的流程图；FIG. 2 is a flowchart of step S1 according to an embodiment of the present disclosure;
图3为本公开实施例所述的步骤S4的流程图；3 is a flowchart of step S4 according to an embodiment of the present disclosure;
图4为本公开实施例所述的步骤S43的流程图；4 is a flowchart of step S43 according to an embodiment of the present disclosure;
图5为本公开实施例所述的除霜控制装置的示意图。FIG. 5 is a schematic diagram of a defrost control device according to an embodiment of the present disclosure.
附图标记说明：Reference sign description:
1-判断单元，11-获取模块，12-判断模块，2-统计单元，3-分组单元，4-控制单元，41-比较模块。1-judgment unit, 11-acquisition module, 12-judgment module, 2-statistics unit, 3-grouping unit, 4-control unit, 41-comparison module.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互组合。It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.
下面将参考附图并结合实施例来详细说明本公开。The disclosure will be described in detail below with reference to the drawings and embodiments.
实施例1Example 1
如图1所示，其为本实施例中多***的除霜控制方法的流程图。所述多***为多个主要由压缩机、四通阀、节流阀、蒸发器、冷凝器组成的循环***，所述多***的除霜控制方法包括：As shown in FIG. 1, it is a flowchart of a multi-system defrosting control method in this embodiment. The multi-system is a plurality of circulation systems mainly composed of a compressor, a four-way valve, a throttle valve, an evaporator, and a condenser. The multi-system defrosting control method includes:
S1、以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；S1. Use a first time interval as a period to determine whether a plurality of the circulation systems in a heating mode meet a defrost condition;
S2、统计满足除霜条件的所述循环***的数量N；S2. Count the number N of the circulation systems that meet the defrost conditions;
S3、若N为偶数，则将所述N个循环***分为N/2个双***组；若N为奇数，则将所述N个循环***分为(N-1)/2个双***组和一个单***；S3. If N is an even number, divide the N cyclic systems into N / 2 dual system groups; if N is an odd number, divide the N cyclic systems into (N-1) / 2 dual systems Groups and a single system;
S4、根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制。S4. Perform defrost control on the circulation system according to the group data of the dual system group and the single system.
具体的，本实施例中每经过第一时间间隔的时间对处于制热模式下的多个循环***进行一次判断，判断多个循环***中的每个循环***是否满足除霜条件。若多个循环***中有N个循环***满足除霜条件，则统计数量N。然后判断数量N的奇偶性，若N为偶数，则将所述N个循环***分为N/2个双***组，每个双***组中包括两个循环***；若N为奇数，则将所述N个循环***分为(N-1)/2个双***组和一个单***，每个双***组中包括两个循环***，单***中包括一个循环***。然后针对双***组中的循环***，选择控制双***组中的一个循环***先进行除霜，待此循环***退出除霜模式后开始运行制热模式时，控制双***组中的另一个循环***进行除霜；针对单***中的循环***，直接控制单***中的循环***进行除霜。循环***由制热模式进入除霜模式时，循环***的压缩机停机，内外风机停机，四通阀切换成制冷模式，然后压缩机开机，外风机启动。除霜时，制冷剂经压缩机压缩成高温高压气体，经四通阀进入冷凝器，在外风机的作用下放热化霜，再经节流阀节流成低温气体。正在除霜的循环***停止向室内输出热量，室内温度会下降。Specifically, in this embodiment, a plurality of circulation systems in the heating mode are judged once every time that a first time interval elapses, and it is determined whether each of the plurality of circulation systems meets a defrost condition. If N of the multiple circulation systems meet the defrost conditions, the number N is counted. Then determine the parity of the number N. If N is an even number, the N cyclic systems are divided into N / 2 dual system groups, each of which includes two cyclic systems; if N is an odd number, the The N circulation systems are divided into (N-1) / 2 dual system groups and a single system. Each dual system group includes two circulation systems, and a single system includes one circulation system. Then for the circulation system in the dual system group, choose to control one circulation system in the dual system group to perform defrosting first. When the circulation system exits the defrost mode and starts the heating mode, control the other circulation in the dual system group. The system performs defrosting; for the circulation system in the single system, directly controls the circulation system in the single system for defrosting. When the circulation system enters the defrost mode from the heating mode, the compressor of the circulation system is stopped, the internal and external fans are stopped, the four-way valve is switched to the cooling mode, and then the compressor is started and the external fan is started. During defrosting, the refrigerant is compressed into high-temperature and high-pressure gas by the compressor, enters the condenser through the four-way valve, exotherms and defrosts under the action of the external fan, and is throttled to a low-temperature gas by the throttle valve. The defrosting circulation system stops outputting heat to the room, and the room temperature will drop.
这样，若多个循环***中有N个循环***满足除霜条件，本实施例 所述的多***的除霜控制方法保证了所述N个循环***中部分循环***进入除霜模式时，另一部分循环***仍会保持制热模式且向室内输出热量；在所述另一部分循环***进入除霜模式时，先进入除霜模式的循环***会退出除霜模式，恢复向室内输出热量，减小了除霜期间对室内温度的影响。原有的除霜控制方法是所有循环***同时停机切换成制冷模式，然后进行除霜，此时空调停止对室内输出热量，这种除霜控制方法首先对室内环境温度影响较大，使温度的波动幅度较大，容易引起人体不适；其次除霜结束后重新制热时，需要平衡除霜期间温度的下降，浪费能量；对于拥有多个循环***的空调机组，循环***越多，这种除霜控制方法对室内温度的影响越大，浪费的能量越多。本实施例所述的多***的除霜控制方法将满足除霜条件的N个循环***进行分组，根据分组数据对N个循环***进行除霜控制，这种分组方法可保证N个循环***中处于除霜模式的循环***的数量和处于制热模式的循环***的数量相等或相近，在保证除霜效率的同时，极大的减小了除霜期间对室内温度的影响，减小了波动，避免引起人体不适；除霜结束后重新制热、平衡除霜期间温度的下降所需的能量较少，从而极大的减小了除霜带来的能量消耗，具备节能的功效；能够减小平衡除霜带来的温度波动的时间，极大的节约了时间成本。In this way, if there are N circulation systems in the multiple circulation systems that meet the defrost conditions, the multi-system defrost control method described in this embodiment ensures that when some of the N circulation systems enter the defrost mode, another Part of the circulation system will still maintain the heating mode and output heat to the room. When the other part of the circulation system enters the defrost mode, the circulation system that first enters the defrost mode will exit the defrost mode, resume the heat output to the room, and reduce The effect on the indoor temperature during the defrosting period is shown. The original defrosting control method was to switch all cooling systems to the cooling mode at the same time, and then perform defrosting. At this time, the air conditioner stopped outputting heat to the room. This defrosting control method first had a large impact on the indoor ambient temperature, making the temperature The fluctuation range is large, which is likely to cause human discomfort. Secondly, when reheating after the defrost ends, it is necessary to balance the temperature drop during the defrost and waste energy. For an air-conditioning unit with multiple circulation systems, the more circulation systems, the more The greater the effect of the frost control method on the indoor temperature, the more energy is wasted. The multi-system defrosting control method described in this embodiment groups N cycle systems that meet the defrosting conditions, and performs defrost control on the N cycle systems based on the grouped data. This grouping method can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode are equal or similar. While ensuring the defrost efficiency, it greatly reduces the influence on the indoor temperature during the defrost and reduces the fluctuation. To avoid causing human discomfort; reheating after the defrost ends, and less energy is required to balance the temperature drop during the defrost, thereby greatly reducing the energy consumption caused by the defrost and having energy saving effects; The time of temperature fluctuation caused by small balance defrosting greatly saves time cost.
进一步的，本实施例中还设定循环***的除霜时间限值，循环***从进入除霜模式到退出除霜模式所用时间不大于除霜时间限值，这样在保证除霜效果较佳的同时，可避免除霜时间太长造成室内温度下降幅度太大。Further, in this embodiment, a defrost time limit of the circulation system is also set. The time taken by the circulation system from entering the defrost mode to exiting the defrost mode is not greater than the defrost time limit. This ensures a better defrost effect. At the same time, it can prevent the room temperature from falling too much due to the long defrosting time.
进一步的，本实施例中设定的第一时间间隔不小于除霜时间限值。当相邻的两个除霜周期内均只有一个循环***满足除霜条件时，若第一时间间隔小于除霜时间限值，可能出现前一个除霜周期内的循环***除霜还未结束、后一个除霜周期内的循环***就开始除霜的情况，造成满足除霜条件的所有循环***同时进行除霜。设定第一时间间隔不小于除霜时间限值，可避免上述情况。Further, the first time interval set in this embodiment is not less than the defrosting time limit. When only one cycle system meets the defrost conditions in two adjacent defrost cycles, if the first time interval is less than the defrost time limit, it may happen that the defrost of the cycle system in the previous defrost cycle has not ended, The defrosting cycle in the next defrosting cycle will start defrosting, causing all the circulating systems that meet the defrosting conditions to perform defrosting at the same time. Setting the first time interval is not less than the defrost time limit to avoid the above situation.
进一步的，本实施例所述多***的除霜控制方法同样适用于多*** 水冷机组。Further, the multi-system defrosting control method described in this embodiment is also applicable to a multi-system water-cooled unit.
实施例2Example 2
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于，结合图2所示，步骤S1包括步骤S11和步骤S12。As described above, the multi-system defrosting control method is different from this embodiment in that, as shown in FIG. 2, step S1 includes steps S11 and S12.
S11、以第一时间间隔为周期，同时检测处于制热模式下的多个所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；S11. Using the first time interval as a cycle, simultaneously detecting the coil outlet temperatures of a plurality of the circulation systems in the heating mode, obtaining a set defrost tube temperature, a set defrost interval time, a plurality of The compressor operating time of the circulation system;
S12、分别判断多个所述循环***是否满足所述盘管出口温度低于所述除霜管温或所述压缩机运行时间超过所述除霜间隔时间。S12. It is respectively determined whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
具体的，本实施例中每经过第一时间间隔的时间对处于制热模式下的多个循环***同时进行一次检测和数据读取，检测所述多个循环***中每个循环***的的盘管出口温度，检测的同时读取已经预先设置的除霜管温、预设的除霜间隔时间以及所述多个循环***中每个循环***的压缩机运行时间。然后依次将每个循环***的盘管出口温度与预设的除霜管温进行比较，同时依次将每个循环***的压缩机运行时间与预设的除霜间隔时间进行比较，若某个循环***满足其盘管出口温度低于除霜管温或其压缩机运行时间超过除霜间隔时间，则判断此循环***满足除霜条件。Specifically, in this embodiment, each cycle of the heating system in the heating mode is detected and read simultaneously every time the first time interval elapses, and the disks of each cycle in the multiple cycle systems are detected. The outlet temperature of the tube is read while detecting the temperature of the defrost tube that has been set in advance, the preset defrost interval time, and the compressor operating time of each of the plurality of circulation systems. Then the coil outlet temperature of each circulation system is compared with the preset defrost tube temperature in turn, and the compressor operating time of each circulation system is compared with the preset defrost interval time. If the system meets the coil outlet temperature lower than the defrost tube temperature or the compressor running time exceeds the defrost interval time, then it is judged that the circulation system meets the defrost conditions.
这样，本实施例中通过所述多个循环***中每个循环***的盘管出口温度以及压缩机运行时间来判断每个循环***是否满足除霜条件，可保证每个循环***在需要除霜时能够及时的进行除霜，避免循环***未及时除霜影响空调的正常工作。本实施例中通过循环***的盘管出口温度判断循环***是否满足除霜条件，判断的结果较为准确；通过循环***的压缩机运行时间判断循环***是否满足除霜条件，进行判断时覆盖的范围最广，可保证所有循环***在工作一定时间后均能进行除霜，避免产生遗漏。In this way, in this embodiment, the coil outlet temperature and the compressor running time of each circulation system in the multiple circulation systems are used to determine whether each circulation system meets the defrost conditions, which can ensure that each circulation system needs defrost. Defrost can be carried out in time to prevent the defrosting of the circulation system from affecting the normal operation of the air conditioner. In this embodiment, it is judged whether the circulation system meets the defrost conditions by the coil outlet temperature of the circulation system, and the judgment result is more accurate; the compressor operating time of the circulation system is used to determine whether the circulation system meets the defrost conditions, and the range covered by the judgment The widest range can ensure that all the circulatory systems can be defrosted after working for a certain period of time to avoid omissions.
本实施例中所述第一时间间隔为检测和数据读取周期，除霜管温、除霜间隔时间均为设定的固定值且每个循环***设定的除霜管温、除霜间隔时间均相同。本实施例中优选除霜管温范围为0～-7℃，优选除霜管 温为-5℃。The first time interval described in this embodiment is the detection and data reading cycle. The defrost tube temperature and defrost interval time are set fixed values and the defrost tube temperature and defrost interval set for each circulation system. The time is the same. In this embodiment, the temperature range of the defrost tube is preferably 0 to -7 ° C, and the temperature of the defrost tube is preferably -5 ° C.
本实施例中所述盘管出口温度为室外机冷凝器最底部管路出口的温度，通过设置于冷凝器最底部管路出口处的除霜线传感器检测得到。当空调制热时，冷凝器吸热，从盘管入口到盘管出口的温度逐渐升高，盘管出口温度可以用来判断冷凝器的温度。所述外盘管温为室外机冷凝器盘管的管温，通过设置于管路U型处的温度传感器检测得到。在除霜过程中可通过外盘管温来决定除霜是否需要结束。In this embodiment, the coil outlet temperature is the temperature of the bottom pipe outlet of the condenser of the outdoor unit, and is detected by a defrost line sensor provided at the bottom pipe outlet of the condenser. When the air conditioner is heating, the condenser absorbs heat, and the temperature from the coil inlet to the coil outlet gradually increases. The coil outlet temperature can be used to judge the condenser temperature. The outer coil temperature is the tube temperature of the condenser coil of the outdoor unit, and is detected by a temperature sensor provided at the U-shape of the pipeline. During the defrost process, the temperature of the outer coil can be used to determine whether the defrost needs to be ended.
实施例3Example 3
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于，结合图3所示，步骤S4包括步骤S41、步骤S42和步骤S43。As described in the multi-system defrosting control method described above, this embodiment is different from this embodiment in that, as shown in FIG. 3, step S4 includes steps S41, S42, and S43.
S41、对所述分组数据进行判断；S41. Determine the packet data;
S42、若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；S42. If the circulation system is a single system, control the circulation system in the single system to perform defrosting;
S43、若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。S43. If the circulation system is a dual system group, control the circulation system in the dual system group to perform defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems.
其中，步骤S42与步骤S43为并行步骤。Among them, step S42 and step S43 are parallel steps.
具体的，本实施例中首先对满足除霜条件的N个循环***中的每个循环***进行判断，判断每个循环***属于单***还是多***组。若某个循环***属于单***，则直接控制此循环***进行除霜；若某个循环***属于双***组，则控制此循环***所在的双***组中的两个循环***进行除霜，且根据两个循环***的盘管出口温度和压缩机运行时间来决定两个循环***的除霜先后顺序，所述先后顺序为两个循环***中的一个循环***除霜完毕后再进行另一个循环***的除霜。Specifically, in this embodiment, first, each of the N circulation systems satisfying the defrosting condition is judged, and it is determined whether each circulation system belongs to a single system or a multi-system group. If a circulatory system belongs to a single system, directly control the circulatory system for defrosting; if a circulatory system belongs to a dual system group, control two circulatory systems in the dual system group where the circulatory system is located, and The defrosting sequence of the two circulation systems is determined according to the coil outlet temperature and the compressor running time of the two circulation systems. The sequence is that one of the two circulation systems defrosts and then performs another cycle. System defrost.
这样，本实施例中通过判断每个循环***属于单***还是多***组，可在N为奇数时，使单***和多***组中的循环***同时进行除霜，加快了除霜速度，提高了效率。Thus, in this embodiment, by judging whether each circulation system belongs to a single system or a multiple system group, when N is an odd number, the circulation systems in the single system and the multiple system group can be defrosted at the same time, which accelerates the defrost speed and improves Out of efficiency.
实施例4Example 4
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于， 结合图4所示，步骤S43包括：As described above, the multi-system defrosting control method is different from this embodiment in that, as shown in FIG. 4, step S43 includes:
S430、对两个所述循环***的所述盘管出口温度进行比较；S430. Compare the coil outlet temperatures of the two circulation systems;
S431、若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；S431. If the coil outlet temperatures of the two circulation systems are different, control the circulation system with a lower coil outlet temperature to enter a defrost mode;
S432、若两个所述循环***的所述盘管出口温度相同，则对两个所述循环***的所述压缩机运行时间进行比较；S432. If the coil outlet temperatures of the two circulation systems are the same, compare the operating hours of the compressors of the two circulation systems;
S433、若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；S433. If the compressor operating hours of the two circulation systems are different, control the cycle systems with long compressor operating hours to enter a defrost mode;
S434、若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。S434. If the operation times of the compressors of the two circulation systems are the same, randomly control one of the circulation systems to enter a defrost mode.
其中，步骤S431与步骤S432为并行步骤，步骤S433与步骤S434为并行步骤。Among them, steps S431 and S432 are parallel steps, and steps S433 and S434 are parallel steps.
具体的，本实施例中首先比较双***组中两个循环***的盘管出口温度，若两个循环***的盘管出口温度不同，则选择控制盘管出口温度小的循环***优先进入除霜模式，待优先进入除霜模式的循环***除霜完毕后另一个循环***再进行除霜；若两个循环***的盘管出口温度相同，则比较两个循环***的压缩机运行时间，选择控制压缩机运行时间长的循环***优先进入除霜模式。其中，盘管出口温度小和压缩机运行时间长均代表循环***的除霜需求程度较高，盘管出口温度小的优先级高于压缩机运行时间长。Specifically, in this embodiment, the coil exit temperatures of the two circulation systems in the dual system group are first compared. If the coil exit temperatures of the two circulation systems are different, the circulation system with a smaller coil exit temperature is selected to preferentially enter the defrosting. Mode, wait until the circulatory system in the defrost mode has priority to defrost in another circulatory system after the defrosting is completed; if the coil outlet temperatures of the two circulatory systems are the same, compare the compressor operating time of the two circulatory systems and select the control The circulatory system with long compressor running time will enter the defrost mode first. Among them, the low coil outlet temperature and the long compressor operating time both represent a high degree of defrosting demand of the circulation system, and the smaller the coil outlet temperature is higher than the compressor operating time.
这样，本实施例中通过循环***的盘管出口温度和压缩机运行时间来决定优先进入除霜模式的循环***，可使除霜需求程度较高的循环***优先进入除霜模式，优化了除霜方法，除霜资源分配更加合理。In this way, in this embodiment, the coil system outlet temperature and the compressor operating time of the circulation system are used to determine the circulation system that preferentially enters the defrost mode, so that the circulation system with a higher degree of defrost demand can be preferentially entered into the defrost mode, which optimizes the Frost method, the allocation of defrosting resources is more reasonable.
实施例5Example 5
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于，结合图4所示，步骤S43还包括：As described above, the multi-system defrosting control method is different from this embodiment in that, as shown in FIG. 4, step S43 further includes:
S435、获取设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间；S435. Obtain the set outer coil temperature limit, the set defrost time limit, and the outer coil temperature and defrost time of the circulation system entering the defrost mode;
S436、根据设定的外盘管温限值、设定的除霜时间限值、进入除霜 模式的所述循环***的外盘管温和除霜时间判断是否满足第一除霜结束条件，若满足则控制所述循环***退出所述除霜模式；S436. Determine whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, and the outer coil temperature and defrost time of the circulation system entering the defrost mode. If it is satisfied, control the circulation system to exit the defrost mode;
S437、控制所述双***组中的另一循环***进入除霜模式。S437. Control another circulation system in the dual system group to enter a defrost mode.
具体的，本实施例中首先读取已经预先设置的外盘管温限值、预设的除霜时间限值以及双***组中优先进入除霜模式的循环***的外盘管温和除霜时间。然后根据优先进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值来判断优先进入除霜模式的循环***是否满足第一除霜结束条件，若满足则控制优先进入除霜模式的循环***退出除霜模式。待优先进入除霜模式的循环***开始制热模式后控制双***组中的另一循环***进入除霜模式。Specifically, in this embodiment, the preset outer coil temperature limit, the preset defrost time limit, and the outer coil temperature and defrost time of the circulation system that preferentially enters the defrost mode in the dual system group are first read. . Then according to the outer coil temperature and defrosting time of the circulation system that enters the defrost mode preferentially, the preset outer coil temperature limit and defrost time limit are used to determine whether the circulation system that preferentially enters the defrost mode meets the first defrost End condition. If it meets the control, the circulatory system that enters the defrost mode first will exit the defrost mode. After the circulation system that enters the defrosting mode preferentially starts the heating mode, another circulation system in the dual system group is controlled to enter the defrosting mode.
这样，本实施例中通过优先进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值等数据综合判断优先进入除霜模式的循环***是否满足第一除霜结束条件，可使优先进入除霜模式的循环***在不需要继续进行除霜时能够及时的退出除霜模式，可使双***组中的另一循环***较快的进入除霜模式，加快了除霜速度，提高了效率。Thus, in this embodiment, data such as the outer coil temperature and defrosting time of the circulation system that preferentially enters the defrost mode, the preset outer coil temperature limit, and the defrost time limit and other data are used to comprehensively determine the cycle of preferentially entering the defrosting mode. Whether the system satisfies the first defrost end condition can make the circulation system that enters the defrost mode preferentially exit the defrost mode in time when it is not necessary to continue the defrost, and can make the other circulation system in the dual system group faster Enter the defrost mode, speeding up the defrost speed and improving efficiency.
本实施例中所述外盘管温限值、所述除霜时间限值均为设定的固定值且每个循环***设定的外盘管温限值、除霜时间限值均相同。所述外盘管温为室外机冷凝器盘管的管温，通过设置于管路U型处的温度传感器检测得到。所述除霜时间为从循环***进入除霜模式开始计时。In this embodiment, the outer coil temperature limit and the defrost time limit are set fixed values, and the outer coil temperature limit and the defrost time limit set for each circulation system are the same. The outer coil temperature is the tube temperature of the condenser coil of the outdoor unit, and is detected by a temperature sensor provided at the U-shape of the pipeline. The defrost time is counted from the time when the circulation system enters the defrost mode.
本实施例中所述第一除霜结束条件包括：盘管出口温度不低于除霜管温、外盘管温不小于外盘管温限值或除霜时间大于除霜时间限值。本实施例中优选外盘管温限值为12℃，优选除霜时间限值为10min。其中，盘管出口温度不低于除霜管温、外盘管温不小于外盘管温限值均代表循环***室外冷凝器的温度已经上升到一个较佳值，代表已达到较佳的除霜效果；除霜时间大于除霜时间限值代表除霜已经进行了足够长的时间，代表不再继续进行除霜也不会影响循环***的正常工作。这样，可使双***组中优先进入除霜模式的循环***在已达到较佳的除霜效果时能够及时的退出除霜模式，节约了能量；避免进行不必要的除霜，节约了 时间；也避免了除霜时间太长导致的室内温度下降幅度太大。The first defrosting end condition described in this embodiment includes: the coil outlet temperature is not lower than the defrost tube temperature, the outer coil temperature is not less than the outer coil temperature limit, or the defrost time is greater than the defrost time limit. In this embodiment, the temperature limit of the outer coil is preferably 12 ° C., and the limit of the defrost time is preferably 10 min. Among them, the coil outlet temperature is not lower than the defrosting tube temperature, and the outer coil temperature is not less than the outer coil temperature limit, which means that the temperature of the outdoor condenser of the circulation system has risen to a better value, which means that a better Frost effect; if the defrost time is greater than the defrost time limit, it means that the defrost has been performed for a long enough time, which means that it will not continue to defrost and will not affect the normal operation of the circulation system. In this way, the circulatory system that preferentially enters the defrost mode in the dual system group can exit the defrost mode in time when a better defrost effect has been achieved, saving energy; avoiding unnecessary defrosts and saving time; It also avoids that the indoor temperature drop caused by the defrosting time is too long.
实施例6Example 6
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于，结合图4所示，步骤S43还包括：As described above, the multi-system defrosting control method is different from this embodiment in that, as shown in FIG. 4, step S43 further includes:
S438、获取进入除霜模式的所述另一循环***的外盘管温和除霜时间；S438. Obtain a mild defrosting time of the outer coil of the another circulation system that enters the defrosting mode.
S439、根据所述另一循环***的外盘管温和除霜时间判断进入除霜模式的所述另一循环***是否满足第二除霜结束条件，若满足则控制所述另一循环***退出所述除霜模式。S439: Determine whether the other circulation system entering the defrost mode satisfies the second defrost end condition according to the external coil mild defrost time of the another circulation system, and if it is satisfied, control the other circulation system to exit the The defrost mode is described.
具体的，本实施例中首先读取双***组中后进入除霜模式的循环***的外盘管温和除霜时间，然后根据后进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值来判断后进入除霜模式的循环***是否满足第二除霜结束条件，若满足则控制后进入除霜模式的循环***退出除霜模式。Specifically, in this embodiment, first, the outer coil temperature and the defrost time of the circulation system in the dual system group after entering the defrost mode are read, and then according to the outer coil temperature and the defrost time of the circulation system in the defrost mode after entering the The preset outer coil temperature limit and defrost time limit are used to determine whether the circulation system that enters the defrost mode after the second defrost end condition is met. If it is satisfied, the control enters the defrost mode and exits the defrost mode. .
这样，本实施例中通过后进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值等数据综合判断后进入除霜模式的循环***是否满足第二除霜结束条件，可使后进入除霜模式的循环***在不需要继续进行除霜时能够及时的退出除霜模式，加快了除霜进程，提高了效率。Thus, in this embodiment, the data of the outer coil temperature and the defrost time of the circulation system that enters the defrost mode after passing the comprehensive judgment are entered after entering the defrost mode cycle. Whether the system meets the second defrosting end condition can make the circulation system that enters the defrosting mode later can exit the defrosting mode in time when it is not necessary to continue the defrosting, which speeds up the defrosting process and improves the efficiency.
本实施例中所述第二除霜结束条件包括：盘管出口温度不低于除霜管温、外盘管温不小于外盘管温限值、除霜时间大于除霜时间限值、遥控器控制空调模式切换或关机。其中，遥控器控制空调模式切换代表人为主动改变了空调的工作模式，代表主动退出除霜模式。The second defrost end conditions described in this embodiment include: the coil outlet temperature is not lower than the defrost tube temperature, the outer coil temperature is not less than the outer coil temperature limit, the defrost time is greater than the defrost time limit, and the remote control The controller controls the switching of the air conditioning mode or shuts down. Among them, the remote controller controls the switching of the air-conditioning mode, which means that the working mode of the air-conditioner has been actively changed, and the de-frost mode is actively exited.
实施例7Example 7
如上述所述的多***的除霜控制方法，本实施例与其不同之处在于，所述压缩机运行时间为：若空调已经开机但未进行过除霜，则压缩机运行时间为从开机开始计时；若空调已经开机且已经进行过除霜，则压缩机运行时间为从上一次除霜结束后开始计时。As described in the multi-system defrosting control method described above, this embodiment is different from this embodiment in that the compressor operating time is: if the air conditioner has been turned on but has not been defrosted, the compressor operating time is from the start of the compressor Timing; if the air conditioner has been turned on and has been defrosted, the compressor running time will be counted from the end of the last defrost.
本实施例中，若空调已经开机但未进行过除霜，则优选除霜间隔时 间设定为60min；若空调已经开机且已经进行过除霜，则优选除霜间隔时间设定范围为30～60min，优选设定除霜间隔时间为40min。In this embodiment, if the air conditioner has been turned on but has not been defrosted, the defrost interval time is preferably set to 60min; if the air conditioner is turned on and the defrosting has been performed, the defrost interval time setting range is preferably 30 to 60min, preferably the defrost interval is set to 40min.
这样，通过两种计时方法对压缩机运行时间进行计时，可针对空调的不同状况确定合适的除霜时机，灵活多变，适用性强。In this way, the timing of the compressor running time can be determined by two timing methods, which can determine the appropriate defrost timing for different conditions of the air conditioner, which is flexible and adaptable.
实施例8Example 8
本实施例提供一种与上述任意一种多***的除霜控制方法对应的除霜控制装置，结合图5所示，所述除霜控制装置包括：This embodiment provides a defrost control device corresponding to any one of the multi-system defrost control methods. As shown in FIG. 5, the defrost control device includes:
判断单元1，其用于以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；A judging unit 1 for judging whether a plurality of the circulation systems in a heating mode meet a defrost condition with a first time interval as a cycle;
统计单元2，其用于统计满足除霜条件的所述循环***的数量N；A counting unit 2 for counting the number N of the circulation systems satisfying the defrost conditions;
分组单元3，其用于若N为偶数，则将所述N个***分为N/2个双***组；若N为奇数，则将所述N个***分为(N-1)/2个双***组和一个单***；A grouping unit 3 for dividing the N systems into N / 2 dual system groups if N is an even number; if N is an odd number, dividing the N systems into (N-1) / 2 Two system groups and one single system;
控制单元4，其用于根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制。A control unit 4 is configured to perform defrost control on the circulation system according to the group data of the dual system group and the single system.
具体的，本实施例中判断单元1每经过第一时间间隔的时间对处于制热模式下的多个循环***进行一次判断，判断多个循环***中的每个循环***是否满足除霜条件。若多个循环***中有N个循环***满足除霜条件，则统计单元2统计数量N。然后判断单元1继续判断数量N的奇偶性，若N为偶数，则分组单元3将所述N个循环***分为N/2个双***组，每个双***组中包括两个循环***；若N为奇数，则分组单元3将所述N个循环***分为(N-1)/2个双***组和一个单***，每个双***组中包括两个循环***，单***中包括一个循环***。然后针对双***组中的循环***，控制单元4选择控制双***组中的一个循环***先进行除霜，待此循环***退出除霜模式后开始运行制热模式时，控制双***组中的另一个循环***进行除霜；针对单***中的循环***，控制单元4直接控制单***中的循环***进行除霜。Specifically, in this embodiment, the judging unit 1 judges a plurality of circulation systems in the heating mode every time a first time interval elapses, and determines whether each of the plurality of circulation systems meets a defrost condition. If there are N circulation systems in the multiple circulation systems that meet the defrost conditions, the statistical unit 2 counts the number N. Then the judging unit 1 continues to judge the parity of the number N. If N is an even number, the grouping unit 3 divides the N cyclic systems into N / 2 dual system groups, each of which includes two cyclic systems; If N is an odd number, the grouping unit 3 divides the N cyclic systems into (N-1) / 2 dual system groups and a single system. Each dual system group includes two cyclic systems, and the single system includes A circulatory system. Then for the circulation system in the dual system group, the control unit 4 chooses to control one circulation system in the dual system group to perform defrosting first. When the circulation system exits the defrost mode and starts to run the heating mode, the control in the dual system group is controlled. The other circulation system performs defrosting; for the circulation system in the single system, the control unit 4 directly controls the circulation system in the single system to perform defrosting.
这样，本实施例所述的多***的除霜控制装置中分组单元3将满足除霜条件的N个循环***进行分组，控制单元4根据分组数据对N个循 环***进行除霜控制，可保证N个循环***中处于除霜模式的循环***的数量和处于制热模式的循环***的数量相等或相近，在保证除霜效率的同时，极大的减小了除霜期间对室内温度的影响，减小了波动，避免引起人体不适；除霜结束后重新制热、平衡除霜期间温度的下降所需的能量较少，从而极大的减小了除霜带来的能量消耗，具备节能的功效；能够减小平衡除霜带来的温度波动的时间，极大的节约了时间成本。In this way, the grouping unit 3 in the multi-system defrosting control device described in this embodiment groups N cycle systems that meet the defrost conditions, and the control unit 4 performs defrost control on the N cycle systems according to the grouped data, which can ensure that The number of circulation systems in the defrost mode and the number of circulation systems in the heating mode in the N circulation systems are equal or similar. While ensuring the defrost efficiency, it greatly reduces the impact on the indoor temperature during the defrost period. To reduce fluctuations and avoid discomfort to the human body; re-heating after the defrost is completed, and less energy is required to balance the temperature drop during the defrost, thereby greatly reducing the energy consumption caused by the defrost, and saving energy Effect; can reduce the time of temperature fluctuations caused by balanced defrosting, which greatly saves time costs.
实施例9Example 9
如上述所述的多***的除霜控制装置，本实施例与其不同之处在于，结合图5所示，本实施例中的判断单元1包括：As described above, the multi-system defrosting control device is different from this embodiment in that, as shown in FIG. 5, the determination unit 1 in this embodiment includes:
获取模块11，其用于以第一时间间隔为周期，同时检测处于制热模式下的多个所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；An acquisition module 11 for detecting the coil exit temperatures of a plurality of the circulation systems in a heating mode at the same time using a first time interval as a cycle to acquire a set defrost tube temperature and a set defrost interval Time, compressor running time of a plurality of said circulation systems;
判断模块12，其用于分别判断多个所述循环***是否满足所述盘管出口温度低于所述除霜管温或所述压缩机运行时间超过所述除霜间隔时间。A judging module 12 is configured to judge whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
具体的，本实施例中获取模块11每经过第一时间间隔的时间对处于制热模式下的多个循环***同时进行一次检测和数据读取，检测所述多个循环***中每个循环***的的盘管出口温度，检测的同时读取已经预先设置的除霜管温、预设的除霜间隔时间以及所述多个循环***中每个循环***的压缩机运行时间。然后判断模块12依次将每个循环***的盘管出口温度与预设的除霜管温进行比较，同时依次将每个循环***的压缩机运行时间与预设的除霜间隔时间进行比较，若某个循环***满足其盘管出口温度低于除霜管温或其压缩机运行时间超过除霜间隔时间，则判断模块12判断此循环***满足除霜条件。Specifically, in this embodiment, the acquisition module 11 performs detection and data reading on a plurality of circulation systems in the heating mode at the same time every time the first time interval elapses, and detects each circulation system in the plurality of circulation systems. The temperature of the coil outlet is measured while reading the temperature of the defrost tube that has been set in advance, the preset defrost interval time, and the compressor running time of each of the multiple circulation systems. Then the judgment module 12 sequentially compares the coil outlet temperature of each circulation system with a preset defrost tube temperature, and simultaneously compares the compressor operating time of each circulation system with a preset defrost interval. If a certain circulation system satisfies that the coil outlet temperature is lower than the defrost pipe temperature or the compressor operation time exceeds the defrost interval time, the judgment module 12 judges that the circulation system meets the defrost conditions.
这样，本实施例中判断模块12通过所述多个循环***中每个循环***的盘管出口温度以及压缩机运行时间来判断每个循环***是否满足除霜条件，可保证每个循环***在需要除霜时能够及时的进行除霜，避免循环***未及时除霜影响空调的正常工作。本实施例中判断模块12通过循环***的盘管出口温度判断循环***是否满足除霜条件，判断的 结果较为准确；通过循环***的压缩机运行时间判断循环***是否满足除霜条件，进行判断时覆盖的范围最广，可保证所有循环***在工作一定时间后均能进行除霜，避免产生遗漏。In this way, the determination module 12 in this embodiment determines whether each circulation system meets the defrost conditions by using the coil outlet temperature and the compressor running time of each of the plurality of circulation systems, which can ensure that each circulation system is Defrost can be carried out in time when defrosting is needed, so as to prevent the defrosting of the circulation system from affecting the normal operation of the air conditioner. In this embodiment, the judging module 12 judges whether the circulating system meets the defrost condition by using the coil outlet temperature of the circulating system, and the judgment result is more accurate; when the compressor running time of the circulating system determines whether the circulating system meets the defrost condition, It covers the widest range, which can ensure that all the circulatory systems can perform defrosting after a certain period of time to avoid omissions.
实施例10Example 10
如上述所述的多***的除霜控制装置，本实施例与其不同之处在于，结合图5所示，控制单元4中根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制包括：As described above, the multi-system defrosting control device is different from this embodiment in that, in combination with FIG. 5, the control unit 4 controls the cycle according to the group data of the dual system group and the single system. The system's defrost control includes:
控制判断模块12对所述分组数据进行判断；The control judgment module 12 judges the packet data;
若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；If the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。If the circulation system is a dual system group, the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
具体的，本实施例中控制单元4首先控制判断模块12对满足除霜条件的N个循环***中的每个循环***进行判断，判断每个循环***属于单***还是多***组。若某个循环***属于单***，则控制单元4直接控制此循环***进行除霜；若某个循环***属于双***组，则控制此循环***所在的双***组中的两个循环***进行除霜，且根据两个循环***的盘管出口温度和压缩机运行时间来决定两个循环***的除霜先后顺序，所述先后顺序为两个循环***中的一个循环***除霜完毕后再进行另一个循环***的除霜。Specifically, in this embodiment, the control unit 4 first controls the judgment module 12 to judge each of the N cycle systems that satisfy the defrost conditions, and determine whether each cycle system belongs to a single system or a multi-system group. If a circulation system belongs to a single system, the control unit 4 directly controls the circulation system to perform defrosting; if a circulation system belongs to a dual system group, control two circulation systems in the dual system group where the circulation system is located to perform defrost. Defrost, and the defrosting sequence of the two circulation systems is determined according to the coil outlet temperature and the compressor operating time of the two circulation systems, which are performed after the defrost of one of the two circulation systems is completed. Defrost of another circulation system.
这样，本实施例中控制单元4控制判断模块12通过判断每个循环***属于单***还是多***组，可在N为奇数时，使单***和多***组中的循环***同时进行除霜，加快了除霜速度，提高了效率。Thus, in this embodiment, the control unit 4 controls the judgment module 12 to determine whether each cyclic system belongs to a single system or a multi-system group, so that when N is an odd number, the cyclic systems in the single system and the multi-system group can be defrosted simultaneously. Accelerates defrosting speed and improves efficiency.
实施例11Example 11
如上述所述的多***的除霜控制装置，本实施例与其不同之处在于，结合图5所示，本实施例中的控制单元4包括比较模块41，控制单元4中若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进 行除霜包括：As described above, the multi-system defrosting control device is different from this embodiment in that, as shown in FIG. 5, the control unit 4 in this embodiment includes a comparison module 41. For a dual system group, controlling the circulation system in the dual system group to perform defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems includes:
控制比较模块41对两个所述循环***的所述盘管出口温度进行比较；The control comparison module 41 compares the coil outlet temperatures of the two circulation systems;
若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；若两个所述循环***的所述盘管出口温度相同，则控制比较模块41对两个所述循环***的所述压缩机运行时间进行比较；If the coil outlet temperatures of the two circulation systems are different, control the circulation system with a lower coil outlet temperature to enter a defrost mode; if the coil outlet temperatures of the two circulation systems are the same Then, the control comparison module 41 compares the compressor running times of the two circulation systems;
若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。If the compressor operating hours of the two circulation systems are different, the cycle systems controlling the compressor operating time to enter a defrost mode; if the compressor operating hours of the two circulation systems are the same , One of the circulation systems is randomly controlled to enter a defrost mode.
具体的，本实施例中控制单元4首先控制比较模块41比较双***组中两个循环***的盘管出口温度，若两个循环***的盘管出口温度不同，则控制单元4选择控制盘管出口温度小的循环***优先进入除霜模式，待优先进入除霜模式的循环***除霜完毕后另一个循环***再进行除霜；若两个循环***的盘管出口温度相同，则比较模块41比较两个循环***的压缩机运行时间，控制单元4选择控制压缩机运行时间长的循环***优先进入除霜模式。Specifically, in this embodiment, the control unit 4 first controls the comparison module 41 to compare the coil exit temperatures of the two circulation systems in the dual system group. If the coil exit temperatures of the two circulation systems are different, the control unit 4 selects the control coil The circulatory system with a small outlet temperature first enters the defrosting mode. After the defrosting of the cyclic system that enters the defrosting mode preferentially, the other circulatory system performs defrosting. If the coil outlet temperatures of the two cyclic systems are the same, the comparison module 41 Comparing the operating hours of the compressors of the two circulation systems, the control unit 4 chooses to control the circulation system with a long operating time of the compressor to enter the defrost mode first.
这样，本实施例中控制单元4通过循环***的盘管出口温度和压缩机运行时间来决定优先进入除霜模式的循环***，可使除霜需求程度较高的循环***优先进入除霜模式，优化了除霜方法，除霜资源分配更加合理。In this way, in this embodiment, the control unit 4 determines the circulation system that preferentially enters the defrosting mode through the coil outlet temperature of the circulation system and the compressor operating time, so that the circulation system with a higher degree of defrosting demand can enter the defrosting mode. The defrosting method was optimized, and the defrosting resource allocation was more reasonable.
实施例12Example 12
如上述所述的多***的除霜控制装置，本实施例与其不同之处在于，控制单元4中若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：As described above for the multi-system defrosting control device, this embodiment is different from this embodiment in that if the circulation system in the control unit 4 is a dual system group, then according to the coil outlets of the two circulation systems Controlling temperature and the compressor operating time for the defrosting of the circulation system in the dual system group further includes:
控制获取模块11获取设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间；The control acquisition module 11 acquires the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode;
控制判断模块12根据设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间判断是否满足第一除霜结束条件，若满足则控制所述循环***退出所述除霜模式；The control judgment module 12 judges whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode. If yes, control the circulation system to exit the defrost mode;
控制所述双***组中的另一循环***进入除霜模式。Control another circulation system in the dual system group to enter a defrost mode.
具体的，本实施例中控制单元4首先控制获取模块11读取已经预先设置的外盘管温限值、预设的除霜时间限值以及双***组中优先进入除霜模式的循环***的外盘管温和除霜时间；然后控制判断模块12根据优先进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值来判断优先进入除霜模式的循环***是否满足第一除霜结束条件，若满足则控制优先进入除霜模式的循环***退出除霜模式；待优先进入除霜模式的循环***开始制热模式后控制双***组中的另一循环***进入除霜模式。Specifically, in this embodiment, the control unit 4 first controls the acquisition module 11 to read the preset outer coil temperature limit, the preset defrost time limit, and the circulation system of the dual system group that preferentially enters the defrost mode. Outer coil temperature and defrosting time; then, the control judgment module 12 judges priority entry based on the outer coil temperature and defrosting time of the circulation system that preferentially enters the defrosting mode, the preset outer coil temperature limit and the defrosting time limit. Whether the circulation system in the defrost mode meets the first defrost end condition. If it meets the control, the circulation system that enters the defrost mode preferentially exits the defrost mode; after the circulation system that enters the defrost mode preferentially starts the heating mode, the dual system group is controlled. The other circulatory system is in defrost mode.
这样，本实施例中控制单元4控制判断模块12通过优先进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值等数据综合判断优先进入除霜模式的循环***是否满足第一除霜结束条件，可使优先进入除霜模式的循环***在不需要继续进行除霜时能够及时的退出除霜模式，可使双***组中的另一循环***较快的进入除霜模式，加快了除霜速度，提高了效率。In this way, in this embodiment, the control unit 4 controls the judgment module 12 to comprehensively judge the data such as the outer coil temperature and the defrost time of the circulation system that preferentially enters the defrost mode, the preset outer coil temperature limit, and the defrost time limit. Whether the circulation system that enters the defrost mode preferentially meets the first defrost end condition, can make the circulation system that enters the defrost mode preferentially exit the defrost mode in time when it is not necessary to continue the defrost, and can make the The other circulation system enters the defrost mode faster, which speeds up the defrost speed and improves the efficiency.
实施例13Example 13
如上述所述的多***的除霜控制装置，本实施例与其不同之处在于，控制单元4中若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：As described above for the multi-system defrosting control device, this embodiment is different from this embodiment in that if the circulation system in the control unit 4 is a dual system group, then according to the coil outlets of the two circulation systems Controlling temperature and the compressor operating time for the defrosting of the circulation system in the dual system group further includes:
控制获取模块11获取进入除霜模式的所述另一循环***的外盘管温和除霜时间；Controlling the acquisition module 11 to acquire the outer coil temperature and the defrost time of the another circulation system entering the defrost mode;
控制判断模块12根据所述另一循环***的外盘管温和除霜时间判断进入除霜模式的所述另一循环***是否满足第二除霜结束条件，若满足则控制所述另一循环***退出所述除霜模式。The control judgment module 12 judges whether the other circulation system entering the defrost mode satisfies a second defrost end condition according to the outer coil temperature and the defrost time of the other circulation system, and controls the other circulation system if it is satisfied Exit the defrost mode.
具体的，本实施例中控制单元4首先控制获取模块11读取双*** 组中后进入除霜模式的循环***的外盘管温和除霜时间，然后控制判断模块12根据后进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值来判断后进入除霜模式的循环***是否满足第二除霜结束条件，若满足则控制后进入除霜模式的循环***退出除霜模式。Specifically, in this embodiment, the control unit 4 first controls the acquisition module 11 to read the outer coil temperature and the defrosting time of the circulation system that enters the defrost mode after the dual system group, and then controls the judgment module 12 to enter the defrost mode according to the The outer coil temperature and defrosting time of the circulation system, the preset outer coil temperature limit, and the defrost time limit determine whether the circulation system that enters the defrost mode after the second defrost end condition is satisfied. The circulatory system entering the defrost mode exits the defrost mode.
这样，本实施例中控制单元4控制判断模块12通过后进入除霜模式的循环***的外盘管温和除霜时间、预设的外盘管温限值和除霜时间限值等数据综合判断后进入除霜模式的循环***是否满足第二除霜结束条件，可使后进入除霜模式的循环***在不需要继续进行除霜时能够及时的退出除霜模式，加快了除霜进程，提高了效率。In this way, in this embodiment, the control unit 4 controls the judgment module 12 to pass through the external coil temperature and defrost time of the circulatory system of the defrost mode after passing, and the preset external coil temperature limit and defrost time limit are comprehensively judged. Whether the circulation system that enters the defrost mode later meets the second defrost end condition, enables the circulation system that enters the defrost mode to exit the defrost mode in time when it is not necessary to continue the defrost, which accelerates the defrost process and improves Out of efficiency.
需要说明的是，在附图或说明书描述中，相似或相同的部分都使用相同的图号。说明书中示例的各个实施例中的技术特征在无冲突的前提下可以进行自由组合形成新的方案，另外每个权利要求可以单独作为一个实施例或者各个权利要求中的技术特征可以进行组合作为新的实施例，且在附图中，实施例的形状或是厚度可扩大，并以简化或是方便标示。再者，附图中未绘示或描述的元件或实现方式，为所属技术领域中普通技术人员所知的形式。另外，虽然本文可提供包含特定值的参数的示范，但应了解，参数无需确切等于相应的值，而是可在可接受的误差容限或设计约束内近似于相应的值。It should be noted that, in the drawings or the description of the specification, similar or identical parts all use the same drawing numbers. The technical features in the various embodiments exemplified in the description can be freely combined to form a new solution under the premise of no conflicts. In addition, each claim can be individually used as an embodiment or the technical features in the individual claims can be combined as new. In the drawings, the shape or thickness of the embodiments can be enlarged, and they can be simplified or conveniently labeled. Moreover, elements or implementations not shown or described in the drawings are in a form known to those skilled in the art. In addition, although examples of parameters containing specific values may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but may be approximated by corresponding values within acceptable error tolerances or design constraints.
除非存在技术障碍或矛盾，本公开的上述各种实施方式可以自由组合以形成另外的实施例，这些另外的实施例均在本公开的保护范围中。Unless there are technical obstacles or contradictions, the above-mentioned various embodiments of the present disclosure can be freely combined to form further embodiments, and these additional embodiments are all within the protection scope of the present disclosure.
虽然结合附图对本公开进行了说明，但是附图中公开的实施例旨在对本公开优选实施方式进行示例性说明，而不能理解为对本公开的一种限制。附图中的尺寸比例仅仅是示意性的，并不能理解为对本公开的限制。Although the present disclosure has been described with reference to the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate preferred embodiments of the present disclosure, and should not be construed as a limitation to the present disclosure. The dimensional ratios in the drawings are only schematic and should not be construed as limiting the present disclosure.
虽然本公开总体构思的一些实施例已被显示和说明，本领域普通技术人员将理解，在不背离本总体发明构思的原则和精神的情况下，可对这些实施例做出改变，本公开的范围以权利要求和它们的等同物限定。Although some embodiments of the present general inventive concept have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the present general inventive concept. The scope is defined by the claims and their equivalents.

Claims (10)

  1. 一种多***的除霜控制方法，所述多***为多个循环***，其特征在于，所述多***的除霜控制方法包括：A multi-system defrosting control method, wherein the multi-system is a multi-cycle system, characterized in that the multi-system defrosting control method includes:
    以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；Determine whether a plurality of the circulation systems in the heating mode meet a defrost condition by using the first time interval as a cycle;
    统计满足除霜条件的所述循环***的数量N；Count the number N of the circulation systems that meet the defrost conditions;
    若N为偶数，则将所述N个循环***分为N/2个双***组；若N为奇数，则将所述N个循环***分为(N-1)/2个双***组和一个单***；If N is an even number, the N cyclic systems are divided into N / 2 dual system groups; if N is an odd number, the N cyclic systems are divided into (N-1) / 2 dual system groups and A single system
    根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制。Perform defrost control on the circulation system according to the group data of the dual system group and the single system.
  2. 根据权利要求1所述的多***的除霜控制方法，其特征在于，所述以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件包括：The multi-system defrosting control method according to claim 1, wherein determining whether a plurality of the circulation systems in a heating mode meet a defrosting condition using a first time interval as a cycle comprises:
    以第一时间间隔为周期，同时检测处于制热模式下的各所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；Taking the first time interval as a cycle, simultaneously detecting the coil outlet temperature of each of the circulation systems in the heating mode to obtain a set defrost tube temperature, a set defrost interval time, and a plurality of the circulation systems Compressor running time;
    分别判断各所述循环***是否满足所述盘管出口温度低于所述设定的除霜管温或所述压缩机运行时间超过所述设定的除霜间隔时间，如满足二者条件之一，则对应的循环***满足除霜条件。It is judged whether each of the circulation systems satisfies that the coil outlet temperature is lower than the set defrost tube temperature or the compressor operation time exceeds the set defrost interval time. First, the corresponding circulatory system meets the defrost conditions.
  3. 根据权利要求1或2所述的多***的除霜控制方法，其特征在于，根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制包括：The multi-system defrosting control method according to claim 1 or 2, wherein performing defrosting control on the cyclic system according to the group data of the dual system group and the single system comprises:
    对所述分组数据进行判断；Judging the packet data;
    若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；If the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
    若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。If the circulation system is a dual system group, the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
  4. 根据权利要求3所述的多***的除霜控制方法，其特征在于，若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜包括：The multi-system defrosting control method according to claim 3, characterized in that if the circulation system is a dual system group, according to the coil outlet temperatures of the two circulation systems and the operation of the compressor Defrosting the circulatory system in the dual system group by time control includes:
    对两个所述循环***的所述盘管出口温度进行比较；Comparing the coil outlet temperatures of the two circulation systems;
    若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；If the coil outlet temperatures of the two circulation systems are different, controlling the circulation system with a lower coil outlet temperature to enter a defrost mode;
    若两个所述循环***的所述盘管出口温度相同，则对两个所述循环***的所述压缩机运行时间进行比较，若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。If the coil outlet temperatures of the two circulation systems are the same, then the compressor operating hours of the two circulation systems are compared. If the compressor operating hours of the two circulation systems are different, Then control the circulation system with a long operating time of the compressor to enter a defrost mode; if the compressors of the two circulation systems have the same operating time, randomly control one of the circulation systems to enter a defrost mode.
  5. 根据权利要求4所述的多***的除霜控制方法，其特征在于，若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：The multi-system defrosting control method according to claim 4, characterized in that if the circulation system is a dual system group, according to the coil outlet temperatures of the two circulation systems and the operation of the compressor Time controlling the circulatory system in the dual system group for defrosting further includes:
    获取设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间；Obtaining the set outer coil temperature limit, the set defrost time limit, the outer coil temperature and the defrost time of the circulation system entering the defrost mode;
    根据设定的外盘管温限值、设定的除霜时间限值、进入除霜模式的所述循环***的外盘管温和除霜时间判断是否满足第一除霜结束条件，若满足则控制所述循环***退出所述除霜模式；Determine whether the first defrost end condition is satisfied according to the set outer coil temperature limit, the set defrost time limit, and the outer coil temperature and defrost time of the circulation system entering the defrost mode. Controlling the circulatory system to exit the defrosting mode;
    控制所述双***组中的另一循环***进入除霜模式。Control another circulation system in the dual system group to enter a defrost mode.
  6. 根据权利要求5所述的多***的除霜控制方法，其特征在于，若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜还包括：The multi-system defrosting control method according to claim 5, characterized in that, if the circulation system is a dual system group, according to the coil outlet temperatures of the two circulation systems and the operation of the compressor Time controlling the circulatory system in the dual system group for defrosting further includes:
    获取进入除霜模式的所述另一循环***的外盘管温和除霜时间；Obtaining a mild defrosting time of the outer coil of the another circulation system entering the defrosting mode;
    根据所述另一循环***的外盘管温和除霜时间判断进入除霜模式的所述另一循环***是否满足第二除霜结束条件，若满足则控制所述另 一循环***退出所述除霜模式。Judging whether the other circulation system entering the defrost mode satisfies the second defrost end condition according to the outer coil mild defrost time of the another circulation system, and if it is satisfied, controlling the other circulation system to exit the defrost Frost pattern.
  7. 一种多***的除霜控制装置，其特征在于，所述多***的除霜控制装置包括：A multi-system defrosting control device is characterized in that the multi-system defrosting control device includes:
    判断单元(1)，其用于以第一时间间隔为周期，判断处于制热模式下的多个所述循环***是否满足除霜条件；A judging unit (1) for judging whether a plurality of the circulation systems in a heating mode meet a defrost condition with a first time interval as a cycle;
    统计单元(2)，其用于统计满足除霜条件的所述循环***的数量N；A statistics unit (2) for counting the number N of the circulatory systems that satisfy the defrost conditions;
    分组单元(3)，其用于若N为偶数，则将所述N个循环***分为N/2个双***组；若N为奇数，则将所述N个***分为(N-1)/2个双***组和一个单***；A grouping unit (3) for dividing the N cyclic systems into N / 2 dual system groups if N is an even number; if N is an odd number, dividing the N systems into (N-1 ) / 2 dual system groups and one single system;
    控制单元(4)，其用于根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制。And a control unit (4) configured to perform defrost control on the circulation system according to the group data of the dual system group and the single system.
  8. 根据权利要求7所述的多***的除霜控制装置，其特征在于，所述判断单元(1)包括：The multi-system defrosting control device according to claim 7, wherein the determining unit (1) comprises:
    获取模块(11)，其用于以第一时间间隔为周期，同时检测处于制热模式下的多个所述循环***的盘管出口温度，获取设定的除霜管温、设定的除霜间隔时间、多个所述循环***的压缩机运行时间；An acquisition module (11) for detecting the coil outlet temperatures of a plurality of said circulation systems in a heating mode simultaneously at a first time interval as a cycle, and acquiring a set defrost tube temperature and a set Frost interval time, compressor running time of a plurality of said circulation systems;
    判断模块(12)，其用于分别判断多个所述循环***是否满足所述盘管出口温度低于所述除霜管温或所述压缩机运行时间超过所述除霜间隔时间。A judging module (12) configured to judge whether a plurality of the circulation systems satisfy that the coil outlet temperature is lower than the defrost tube temperature or the compressor operating time exceeds the defrost interval time.
  9. 根据权利要求8所述的多***的除霜控制装置，其特征在于，所述控制单元(4)中根据所述双***组和所述单***的分组数据对所述循环***进行除霜控制包括：The multi-system defrosting control device according to claim 8, characterized in that, in the control unit (4), defrosting control is performed on the circulation system based on the group data of the dual system group and the single system. include:
    控制所述判断模块(12)对所述分组数据进行判断；Controlling the judging module (12) to judge the packet data;
    若所述循环***为单***，则控制所述单***中的所述循环***进行除霜；If the circulation system is a single system, controlling the circulation system in the single system to perform defrosting;
    若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜。If the circulation system is a dual system group, the circulation systems in the dual system group are controlled for defrosting according to the coil outlet temperatures and the compressor operating hours of the two circulation systems.
  10. 根据权利要求9所述的多***的除霜控制装置，其特征在于， 所述控制单元(4)包括比较模块(41)，所述控制单元(4)中若所述循环***为双***组，则根据两个所述循环***的所述盘管出口温度和所述压缩机运行时间控制所述双***组中的所述循环***进行除霜包括：The multi-system defrosting control device according to claim 9, wherein the control unit (4) includes a comparison module (41), and if the circulation system is a dual system group in the control unit (4) , Then controlling the circulation system in the dual system group to perform defrosting according to the coil outlet temperature and the compressor operating time of the two circulation systems includes:
    控制所述比较模块(41)对两个所述循环***的所述盘管出口温度进行比较；Controlling the comparison module (41) to compare the coil outlet temperatures of the two circulation systems;
    若两个所述循环***的所述盘管出口温度不同，则控制所述盘管出口温度小的所述循环***进入除霜模式；If the coil outlet temperatures of the two circulation systems are different, controlling the circulation system with a lower coil outlet temperature to enter a defrost mode;
    若两个所述循环***的所述盘管出口温度相同，则控制所述比较模块(41)对两个所述循环***的所述压缩机运行时间进行比较，若两个所述循环***的所述压缩机运行时间不同，则控制所述压缩机运行时间长的所述循环***进入除霜模式；若两个所述循环***的所述压缩机运行时间相同，则随机控制其中一个所述循环***进入除霜模式。If the coil outlet temperatures of the two circulation systems are the same, then the comparison module (41) is controlled to compare the operating hours of the compressors of the two circulation systems. If the compressor operating hours are different, the cycle system with a long compressor operating time is controlled to enter a defrost mode; if the compressor operating hours of the two cycle systems are the same, one of the compressors is randomly controlled. The circulation system enters the defrost mode.
PCT/CN2019/093827 2018-09-21 2019-06-28 Defrosting control method and apparatus for multiple systems WO2020057223A1 (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109210693A (en) * 2018-09-21 2019-01-15 宁波奥克斯电气股份有限公司 A kind of defrosting control method and device of multisystem
CN110848885B (en) * 2019-11-28 2021-10-26 广东美的制冷设备有限公司 Air conditioner, defrosting method thereof and computer readable storage medium
CN112484238B (en) * 2020-11-16 2021-11-23 珠海格力电器股份有限公司 Defrosting control method and device, multi-module unit and heating and ventilation equipment
CN112984595B (en) * 2021-03-10 2022-04-19 青岛海信日立空调***有限公司 Ground heating unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202973681U (en) * 2012-11-27 2013-06-05 重庆美的通用制冷设备有限公司 Air source heat pump machine unit and air conditioning system
CN103673438A (en) * 2012-09-20 2014-03-26 广东美的暖通设备有限公司 Sustainable heating multi-connected air-conditioner and defrosting method thereof
CN108151367A (en) * 2017-12-25 2018-06-12 北京中矿博能节能科技有限公司 Direct-cooling type depth enthalpy takes hot idle air heat pump system defrosting group control method
CN109210693A (en) * 2018-09-21 2019-01-15 宁波奥克斯电气股份有限公司 A kind of defrosting control method and device of multisystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105526680B (en) * 2016-01-19 2018-09-25 珠海格力电器股份有限公司 The air-cooled cold wind unit defrosting control method of multisystem and device
CN106152644B (en) * 2016-06-30 2018-09-11 珠海格力电器股份有限公司 Heat pump air conditioner unit defrosting control method and system
KR101908306B1 (en) * 2017-01-05 2018-10-16 엘지전자 주식회사 Air-conditioner and Method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673438A (en) * 2012-09-20 2014-03-26 广东美的暖通设备有限公司 Sustainable heating multi-connected air-conditioner and defrosting method thereof
CN202973681U (en) * 2012-11-27 2013-06-05 重庆美的通用制冷设备有限公司 Air source heat pump machine unit and air conditioning system
CN108151367A (en) * 2017-12-25 2018-06-12 北京中矿博能节能科技有限公司 Direct-cooling type depth enthalpy takes hot idle air heat pump system defrosting group control method
CN109210693A (en) * 2018-09-21 2019-01-15 宁波奥克斯电气股份有限公司 A kind of defrosting control method and device of multisystem

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