WO2021135277A1 - 热泵系统及空调 - Google Patents

热泵系统及空调 Download PDF

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Publication number
WO2021135277A1
WO2021135277A1 PCT/CN2020/110891 CN2020110891W WO2021135277A1 WO 2021135277 A1 WO2021135277 A1 WO 2021135277A1 CN 2020110891 W CN2020110891 W CN 2020110891W WO 2021135277 A1 WO2021135277 A1 WO 2021135277A1
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Prior art keywords
pump system
heat pump
pressure
heat exchanger
valve
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PCT/CN2020/110891
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English (en)
French (fr)
Inventor
熊俊峰
王磊
刘煜
武连发
杨智峰
李翱翔
李款磊
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珠海格力电器股份有限公司
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Publication of WO2021135277A1 publication Critical patent/WO2021135277A1/zh

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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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001—Compression cycle type
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements

Definitions

  • the present disclosure is based on the application with the CN application number 202010003287.9 and the filing date of January 2, 2020, and claims its priority.
  • the disclosure of the CN application is hereby incorporated into the present disclosure as a whole.
  • the present disclosure belongs to the technical field of air conditioners, and more specifically, relates to a heat pump system and an air conditioner.
  • the pressure sensor is a very common and common component used in air conditioners.
  • the pressure sensor is mainly used to adjust the capacity output of the air conditioner.
  • the operating frequency of the compressor during heating is generally controlled by the high pressure of the system to adjust the capacity output.
  • Use the system Low pressure controls the output of the compressor's operating frequency adjustment capability during refrigeration.
  • a refrigeration system needs to have at least two pressure sensors, one pressure sensor is installed on the discharge pipe of the compressor, and one pressure sensor is installed on the suction pipe of the compressor.
  • the purpose of the present disclosure is to provide a heat pump system and an air conditioner to solve the problem that pressure sensors need to be installed on both the discharge pipe and the suction pipe of the compressor.
  • the technical solution adopted by the present disclosure is to provide a heat pump system, including a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a four-way valve.
  • the first end of the four-way valve is connected to the indoor through a detection pipeline.
  • the heat exchanger is equipped with a pressure sensor on the detection pipeline.
  • the refrigerant flows from the indoor heat exchanger to the detection pipeline, and the pressure sensor detects the evaporation pressure.
  • the refrigerant flows from the detection pipeline to the indoor heat exchanger, and the pressure sensor detects the condensing pressure.
  • the detection pipeline is further provided with a first shut-off valve, and the pressure sensor is provided between the first shut-off valve and the first end of the four-way valve.
  • the second end and the third end of the four-way valve are respectively connected to both ends of the compressor, and the fourth end of the four-way valve is connected to one end of the outdoor heat exchanger.
  • a throttling device is connected in series between the indoor heat exchanger and the outdoor heat exchanger.
  • the other end of the outdoor heat exchanger is also connected with a second shut-off valve, and the throttling device is arranged between the second shut-off valve and the outdoor heat exchanger.
  • the other end of the outdoor heat exchanger is also connected with a second shut-off valve, and the throttling device is arranged between the second shut-off valve and the indoor heat exchanger.
  • Another object of the present disclosure is to provide an air conditioner including the above heat pump system.
  • the beneficial effect of the heat pump system is that the pipeline connecting the E port of the four-way valve and the indoor heat exchanger is set as the detection pipeline, and the pressure sensor is set on the detection pipeline, according to the working conditions of the heat pump system , The flow direction of the refrigerant in the heat pump system is changed to realize the two processes of cooling and heating.
  • the evaporation pressure and condensing pressure of the heat pump system can be detected more accurately and simply, and only one pressure sensor is needed for the detection. Realize the detection of evaporating pressure and condensing pressure. Reduce the number of pressure sensors and save costs.
  • FIG. 1 is a first structural diagram of a heat pump system provided by an embodiment of the disclosure, and part of the structure is not shown;
  • FIG. 2 is a second structural diagram of the heat pump system provided by an embodiment of the disclosure, and part of the structure is not shown;
  • Fig. 3 is a schematic diagram of the structure of the prior art.
  • the heat pump system includes the compressor 1, the indoor heat exchanger, the outdoor heat exchanger 2, the four-way valve 3, the D port of the four-way valve 3 is connected to one end of the compressor 1, and the S port of the four-way valve 3 is connected to the compressor 1
  • the E port of the four-way valve 3 is connected to the detection pipeline 4, and the E port of the four-way valve 3 is connected to the indoor heat exchanger through the detection pipeline 4, and the detection pipeline 4 is provided with a pressure sensor 5.
  • the pipeline connecting the E port of the four-way valve 3 and the indoor heat exchanger is set as the detection pipeline 4, and the pressure sensor 5 is arranged on the detection pipeline 4.
  • the flow direction of the refrigerant in the heat pump system changes to realize the two processes of cooling and heating.
  • the evaporation pressure and condensing pressure of the heat pump system can be detected more accurately and simply, and this solution is only A pressure sensor 5 is needed to detect the evaporation pressure and condensing pressure.
  • the number of pressure sensors 5 is reduced, and the cost is saved.
  • the low-pressure refrigerant flows from the indoor heat exchanger to the first shut-off valve 6 through the detection port of the pressure sensor 5, then flows through the E port of the four-way valve 3 to the S port, and then flows to the suction port of the compressor 1.
  • the pressure sensor 5 detects the low pressure of the heat pump, and the operating frequency of the refrigeration compressor 1 can be controlled by this pressure.
  • the high temperature and high pressure gaseous refrigerant is discharged from the exhaust port of the compressor 1, it passes through the D port to the C port of the four-way valve 3, and then flows into the outdoor heat exchanger 2 for condensation.
  • the condensed medium temperature and high pressure liquid refrigerant passes through the throttling device 7
  • the throttling device 7 can be an electronic expansion valve, a capillary tube, etc., which will not be repeated here.
  • the throttled low-temperature and low-pressure saturated refrigerant flows to the indoor heat exchanger through the second shut-off valve 8 for evaporation.
  • the evaporated low-temperature and low-pressure gas refrigerant returns to the outdoor unit through the first shut-off valve 6 and passes through the pressure sensor 5 and then passes through the four-way valve. 3 from port E to port S, and then suck in compressor 1 to complete a cycle.
  • the pressure of the heat pump system detected by the pressure sensor 5 is equivalent to the evaporation pressure of the heat pump system.
  • the output of the refrigeration capacity is controlled by the evaporation pressure.
  • the frequency of compressor 1 When the actual detected pressure is higher than the upper limit of the target pressure range of the heat pump system, the frequency of compressor 1 will increase, the evaporation pressure of the system will decrease, and the refrigeration output will increase; when the actual detected pressure is lower than the lower limit of the target pressure range of the system, the frequency of compressor 1 will decrease , The system evaporation pressure increases, and the refrigeration output decreases; when the actual detection pressure is within the upper and lower limits of the system target pressure range, the frequency of compressor 1 is maintained, and the system evaporation pressure is maintained to maintain the current capacity output.
  • the high-pressure refrigerant When heating, the high-pressure refrigerant is discharged from the exhaust port of the compressor 1, flows through the D port of the four-way valve 3 to the E port, passes through the detection port of the pressure sensor 5, and then flows to the indoor heat exchanger through the first stop valve 6. At this time, what the pressure sensor 5 detects is the high pressure of the heat pump system, and the operating frequency of the heating compressor 1 can be controlled by this pressure. After the high-temperature and high-pressure gaseous refrigerant is discharged from the exhaust port of the compressor 1, it passes through the D port to the E port of the four-way valve 3, passes through the pressure sensor 5, and flows into the indoor unit heat exchanger through the first shut-off valve 6 to be condensed.
  • the medium-temperature and high-pressure liquid refrigerant flows back to the outdoor unit through the second shut-off valve 8, and is throttled by the throttle device 7.
  • the throttled low-temperature and low-pressure saturated refrigerant flow evaporates to the heat exchanger of the external unit, and the evaporated low-temperature and low-pressure gaseous refrigerant Pass through the port C of the four-way valve 3 to the port S, and then suck in the compressor 1 to complete a cycle.
  • the pressure detected by the pressure sensor 5 is equivalent to the condensing pressure of the heat pump system.
  • the frequency of compressor 1 decreases, the condensing pressure of the heat pump system decreases, and the heating output decreases; when the actual detected pressure is lower than the lower limit of the target pressure range of the system, the frequency of compressor 1 increases , The condensing pressure of the heat pump system increases, and the heating output increases; when the actual detection pressure is within the upper and lower limits of the target pressure range of the system, the frequency of compressor 1 is maintained, and the condensing pressure of the heat pump system is maintained to maintain the current capacity output.
  • the present disclosure also provides an air conditioner.
  • the air conditioner includes the above-mentioned heat pump system. More specifically, it should be an inverter air conditioner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种热泵系统，包括压缩机（1）、室内换热器、室外换热器（2）及四通阀（3），其中四通阀（3）的第一端通过检测管路（4）连接室内换热器，检测管路（4）上设置有压力传感器（5）。还提供了一种包括该热泵系统的空调。该热泵系统及空调根据热泵系统的工况，冷媒在热泵系统中的流向发生变化，实现制冷和制热两个过程，可以更加精确和简便地检测到热泵系统的蒸发压力和冷凝压力，而且在检测时仅需要一个压力传感器即可实现对蒸发压力和冷凝压力的检测，减少了压力传感器的数量，节省了成本。

Description

热泵系统及空调
相关申请的交叉引用
本公开是以CN申请号为202010003287.9，申请日为2020年1月2日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本公开中。
技术领域
本公开属于空调技术领域，更具体地说，是涉及一种热泵系统及空调。
背景技术
压力传感器是运用在空调中十分常用和常见的元器件，压力传感器主要运用在调节空调的能力输出，对于变频热泵机，一般利用系统高压控制制热时压缩机的运转频率调节能力输出，使用系统低压控制制冷时压缩机的运转频率调节能力输出。
针对上述状况，一个制冷系统需要至少有两个压力传感器，一个压力传感器安装在压缩机的排气管路上，一个压力传感器安装在压缩机的吸气管路上。
发明内容
本公开的目的在于提供一种热泵系统及空调，以解决在压缩机的排气管路和吸气管路上都需要安装压力传感器的问题。
为实现上述目的，本公开采用的技术方案是：提供一种热泵系统，包括压缩机、室内换热器、室外换热器及四通阀，四通阀的第一端通过检测管路连接室内换热器，检测管路上设置有压力传感器。
在一些实施例中，热泵系统制冷时，冷媒从室内换热器流向检测管路，压力传感器检测蒸发压力。
在一些实施例中，热泵系统制热时，冷媒从检测管路流向室内换热器，压力传感器检测冷凝压力。
在一些实施例中，检测管路上还设置有第一截止阀，压力传感器设置在第一截止阀和四通阀的第一端之间。
在一些实施例中，四通阀的第二端和第三端分别连通压缩机的两端，四通阀的第四端 连通室外换热器的一端。
在一些实施例中，室内换热器和室外换热器之间串接有节流装置。
在一些实施例中，室外换热器的另一端还连通有第二截止阀，节流装置设置在第二截止阀和室外换热器之间。
在一些实施例中，室外换热器的另一端还连通有第二截止阀，节流装置设置在第二截止阀和室内换热器之间。
本公开的另一目的在于提供一种空调，空调包括上述热泵系统。
本公开提供的热泵系统的有益效果在于：本公开将四通阀的E口和室内换热器连通的管路设置为检测管路，将压力传感器设置在检测管路上，根据热泵系统的工况，冷媒在热泵系统中的流向发生变化，实现制冷和制热两个过程，可以更加精确和简便地检测到热泵系统的蒸发压力和冷凝压力，而且本方案在检测时仅需要一个压力传感器即可实现对蒸发压力和冷凝压力的检测。减少了压力传感器的数量，节省了成本。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的热泵系统的结构示意图一，部分结构未示出；
图2为本公开实施例提供的热泵系统的结构示意图二，部分结构未示出；
图3为现有技术的结构示意图。
其中，图中各附图主要标记：
1、压缩机；2、室外换热器；3、四通阀；4、检测管路；5、压力传感器；6、第一截止阀；7、节流装置；8、第二截止阀。
具体实施方式
为了使本公开所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本公开进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本公开，并不用于限定本公开。
请一并参阅图1至图3，现对本公开实施例提供的热泵系统进行说明。热泵系统，包括压缩机1、室内换热器、室外换热器2，四通阀3，四通阀3的D口连通压缩机1其中一 端，四通阀3的S口连通压缩机1的另一端，四通阀3的E口连通有检测管路4，四通阀3的E口通过检测管路4连通室内换热器，检测管路4上设置有压力传感器5。
本公开提供的热泵系统，与现有技术相比，将四通阀3的E口和室内换热器连通的管路设置为检测管路4，将压力传感器5设置在检测管路4上，根据热泵系统的工况，冷媒在热泵系统中的流向发生变化，实现制冷和制热两个过程，可以更加精确和简便地检测到热泵系统的蒸发压力和冷凝压力，而且本方案在检测时仅需要一个压力传感器5即可实现对蒸发压力和冷凝压力的检测。减少了压力传感器5的数量，节省了成本。
制冷时，低压冷媒从室内换热器流向第一截止阀6，途径压力传感器5的检测口，再经过四通阀3的E口流向S口，再流向压缩机1的吸气口，此时压力传感器5检测到的即为热泵的低压，可以通过该压力控制制冷压缩机1的运行频率。高温高压气态冷媒从压缩机1排气口排出后，经过四通阀3的D口到C口，再流入室外换热器2进行冷凝，冷凝后的中温高压液态制冷剂经节流装置7节流，节流装置7可选用电子膨胀阀、毛细管等，在此不再赘述。节流后的低温低压饱和态冷媒经第二截止阀8流向室内换热器进行蒸发，蒸发后的低温低压气态冷媒经第一截止阀6返回室外机，途径压力传感器5后，经过四通阀3的E口到S口，再吸入压缩机1完成一个循环。此时压力传感器5检测到的热泵系统的压力相当于热泵系统的蒸发压力，此时依靠蒸发压力控制制冷能力输出。
当实际检测压力高于热泵系统的目标压力范围上限时，压缩机1频率升高，系统蒸发压力降低，制冷输出增大；当实际检测压力低于系统目标压力范围下限时，压缩机1频率降低，系统蒸发压力升高，制冷输出减小；当实际检测压力在系统目标压力范围上下限内时，压缩机1频率维持，系统蒸发压力保持，维持当前能力输出。
制热时，高压冷媒从压缩机1的排气口排出，经四通阀3的D口流到E口，途径压力传感器5的检测口，再经过第一截止阀6流向室内换热器，此时压力传感器5检测到的即为热泵系统的高压，可以通过该压力控制制热压缩机1的运行频率。高温高压气态冷媒从压缩机1的排气口排出后，经过四通阀3的D口到E口，途径压力传感器5后，经过第一截止阀6流入室内机换热器进行冷凝，冷凝后的中温高压液态制冷剂通过第二截止阀8流回室外机，经节流装置7节流，节流后的低温低压饱和态冷媒流向外机换热器进行蒸发，蒸发后的低温低压气态冷媒经过四通阀3的C口到S口，再吸入压缩机1完成一个循环。此时压力传感器5检测到的压力相当于热泵系统的冷凝压力。
当实际检测压力高于系统目标压力范围上限时，压缩机1频率降低，热泵系统冷凝压力降低，制热输出减小；当实际检测压力低于系统目标压力范围下限时，压缩机1频率升高，热泵系统冷凝压力升高，制热输出增大；当实际检测压力在系统目标压力范围上下限 内时，压缩机1频率维持，热泵系统冷凝压力保持，维持当前能力输出。
本公开还提供一种空调，空调包括上述热泵系统，更确切的说，应该是一种变频空调。
以上仅为本公开的具体实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本公开的保护范围之内。

Claims (9)

  1. 一种热泵系统，包括压缩机、室内换热器、室外换热器及四通阀，其中所述四通阀的第一端通过检测管路连接所述室内换热器，所述检测管路上设置有压力传感器。
  2. 如权利要求1所述的热泵系统，其中所述热泵系统制冷时，冷媒从所述室内换热器流向所述检测管路，所述压力传感器检测蒸发压力。
  3. 如权利要求1所述的热泵系统，其中所述热泵系统制热时，冷媒从所述检测管路流向所述室内换热器，所述压力传感器检测冷凝压力。
  4. 如权利要求1所述的热泵系统，其中所述检测管路上还设置有第一截止阀，所述压力传感器设置在所述第一截止阀和所述四通阀的第一端之间。
  5. 如权利要求1所述的热泵系统，其中所述四通阀的第二端和第三端分别连通所述压缩机的两端，所述四通阀的第四端连通所述室外换热器的一端。
  6. 如权利要求5所述的热泵系统，其中所述室内换热器和所述室外换热器之间串接有节流装置。
  7. 如权利要求6所述的热泵系统，其中所述室外换热器的另一端还连通有第二截止阀，所述节流装置设置在所述第二截止阀和所述室外换热器之间。
  8. 如权利要求6所述的热泵系统，其中所述室外换热器的另一端还连通有第二截止阀，所述节流装置设置在所述第二截止阀和所述室内换热器之间。
  9. 一种空调，包括权利要求1-8中任一项所述的热泵系统。
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Publication number Priority date Publication date Assignee Title
CN111023373A (zh) * 2020-01-02 2020-04-17 珠海格力电器股份有限公司 热泵系统及空调
CN111623420B (zh) * 2020-04-26 2021-08-17 海信（山东）空调有限公司 一种空调器
CN113587484B (zh) * 2020-04-30 2023-04-07 广东美的制冷设备有限公司 空调系统、空调压力检测方法及计算机可读存储介质

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003004332A (ja) * 2001-06-26 2003-01-08 Mitsubishi Heavy Ind Ltd マルチ型ガスヒートポンプ式空気調和装置
CN1865798A (zh) * 2005-05-16 2006-11-22 三洋电机株式会社 空调装置
CN1869551A (zh) * 2005-05-24 2006-11-29 株式会社电装 喷射器和喷射循环装置
CN101737878A (zh) * 2009-12-12 2010-06-16 广东美的电器股份有限公司 使用可燃性制冷剂的空调器及其控制方法
CN103940138A (zh) * 2014-04-01 2014-07-23 广东美的暖通设备有限公司 风冷热泵机组
JP2016099059A (ja) * 2014-11-21 2016-05-30 三菱電機株式会社 冷凍サイクル装置
CN108759144A (zh) * 2018-07-21 2018-11-06 青岛奥利凯中央空调有限公司 一种复叠式超低温空气源热泵机组及其控制方法
CN109210630A (zh) * 2018-09-29 2019-01-15 珠海格力电器股份有限公司 对流辐射复合换热系统、换热设备及控制方法
CN111023373A (zh) * 2020-01-02 2020-04-17 珠海格力电器股份有限公司 热泵系统及空调
CN211400161U (zh) * 2020-01-02 2020-09-01 珠海格力电器股份有限公司 热泵系统及空调

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003004332A (ja) * 2001-06-26 2003-01-08 Mitsubishi Heavy Ind Ltd マルチ型ガスヒートポンプ式空気調和装置
CN1865798A (zh) * 2005-05-16 2006-11-22 三洋电机株式会社 空调装置
CN1869551A (zh) * 2005-05-24 2006-11-29 株式会社电装 喷射器和喷射循环装置
CN101737878A (zh) * 2009-12-12 2010-06-16 广东美的电器股份有限公司 使用可燃性制冷剂的空调器及其控制方法
CN103940138A (zh) * 2014-04-01 2014-07-23 广东美的暖通设备有限公司 风冷热泵机组
JP2016099059A (ja) * 2014-11-21 2016-05-30 三菱電機株式会社 冷凍サイクル装置
CN108759144A (zh) * 2018-07-21 2018-11-06 青岛奥利凯中央空调有限公司 一种复叠式超低温空气源热泵机组及其控制方法
CN109210630A (zh) * 2018-09-29 2019-01-15 珠海格力电器股份有限公司 对流辐射复合换热系统、换热设备及控制方法
CN111023373A (zh) * 2020-01-02 2020-04-17 珠海格力电器股份有限公司 热泵系统及空调
CN211400161U (zh) * 2020-01-02 2020-09-01 珠海格力电器股份有限公司 热泵系统及空调

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