EP3760948A1 - Appareil de pompe à chaleur - Google Patents

Appareil de pompe à chaleur Download PDF

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Publication number
EP3760948A1
EP3760948A1 EP18908186.2A EP18908186A EP3760948A1 EP 3760948 A1 EP3760948 A1 EP 3760948A1 EP 18908186 A EP18908186 A EP 18908186A EP 3760948 A1 EP3760948 A1 EP 3760948A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
refrigerant
compressor
heat
pump apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP18908186.2A
Other languages
German (de)
English (en)
Other versions
EP3760948A4 (fr
Inventor
Toru Tonegawa
Toshiya Yamauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP3760948A1 publication Critical patent/EP3760948A1/fr
Publication of EP3760948A4 publication Critical patent/EP3760948A4/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/09—Improving heat transfers
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound

Definitions

  • the present invention relates to a heat pump apparatus.
  • a heat pump system which heats a liquid heating medium such as water by using heat absorbed from outside air is widely used.
  • PTL 1 discloses an outdoor unit which includes a refrigeration cycle having a compressor, an air heat exchanger, a decompression mechanism, and a water heat exchanger in a cabinet.
  • a refrigeration cycle having a compressor, an air heat exchanger, a decompression mechanism, and a water heat exchanger in a cabinet.
  • an internal portion of the cabinet is partitioned into a machine room in which the compressor is provided and an air path room in which an air blowing fan which blows air to the air heat exchanger is provided.
  • a heat exchanger is disposed below the air blowing fan.
  • the outdoor unit in PTL 1 has the following problem.
  • the heat exchanger disposed below the air blowing fan may obstruct the path of air blown by the air blowing fan. When the air path is obstructed, heat exchange efficiency between air and a refrigerant of the air heat exchanger may decrease.
  • the present invention has been made in order to solve the above-described problem, and an object thereof is to provide a heat pump apparatus capable of securing an air path of a fan which blows air to a heat exchanger to increase heat exchange efficiency of the heat exchanger.
  • a compressor configured to compress a refrigerant
  • a first heat exchanger configured to exchange heat between the refrigerant compressed by the compressor and a liquid heating medium
  • a decompression apparatus configured to decompress the refrigerant having passed through the first heat exchanger
  • a second heat exchanger configured to exchange heat between the refrigerant decompressed in the decompression apparatus and air
  • a fan configured to blow air to the second heat exchanger
  • the cabinet is partitioned into a fan room in which the fan is installed and a machine room in which the compressor is installed by a partition plate which extends in a vertical direction.
  • the second heat exchanger is installed along a rear surface of the cabinet in the fan room.
  • the first heat exchanger is installed below the compressor in the machine room.
  • the first heat exchanger is installed below the compressor in the machine room. Accordingly, in the fan room in which the fan is installed, it is possible to prevent the air path of the fan from being obstructed by the first heat exchanger. With this, the air path of the fan which blows air to the second heat exchanger which exchanges heat between the refrigerant and air is effectively secured, and hence it becomes possible to increase the heat exchange efficiency of the second heat exchanger.
  • FIG. 1 is a front view showing the internal structure of a heat pump apparatus of Embodiment 1.
  • FIG. 2 is an external perspective view of the heat pump apparatus of Embodiment 1 when viewed obliquely from the front.
  • FIG. 3 is an external perspective view of the heat pump apparatus of Embodiment 1 when viewed obliquely from behind.
  • FIG. 4 is a view showing a refrigerant circuit and a water circuit of a heat pump hot water supply system which includes the heat pump apparatus of Embodiment 1.
  • a heat pump apparatus 100 of the present embodiment is installed outdoors.
  • the heat pump apparatus 100 heats a liquid heating medium.
  • the heating medium in the present embodiment is water.
  • the heat pump apparatus 100 heats water to generate hot water.
  • the heating medium in the present invention may be brine other than water such as, e.g., a calcium chloride aqueous solution, an ethylene glycol aqueous solution, or alcohol.
  • the heat pump apparatus 100 includes a base 17 serving as a bottom plate which forms a bottom portion of a cabinet.
  • a machine room 14 is formed on the right side, and a fan room 15 is formed on the left side.
  • the machine room 14 and the fan room 15 are separated from each other by a partition plate 16 which extends in a vertical direction.
  • the cabinet forming an outer shell of the heat pump apparatus 100 further includes a front panel 18, a side panel 19, and a top panel 20.
  • the front panel 18 is constituted by a front surface portion 18a which covers a front surface of the heat pump apparatus 100, and a left side surface portion 18b which covers a left side surface thereof.
  • the side panel 19 is constituted by a rear surface portion 19a which covers part of a rear surface of the heat pump apparatus 100, and a right side surface portion 19b which covers a right side surface thereof.
  • These constituent elements of the cabinet are formed from, e.g., sheet metal material.
  • FIG. 1 shows a state in which the individual portions of the cabinet other than the base 17 are detached. In addition, in FIG. 1 , the depiction of part of constituent equipment is omitted.
  • the heat pump apparatus 100 includes a refrigerant circuit in which a compressor 2, a water-refrigerant heat exchanger 8 serving as a first heat exchanger, an air-refrigerant heat exchanger 7 serving as a second heat exchanger, and an expansion valve 10 for decompressing a refrigerant are annularly connected via a refrigerant pipe 4.
  • the heat pump apparatus 100 performs an operation of a refrigerant cycle, i.e., a heat pump cycle.
  • the compressor 2 compresses low-pressure refrigerant gas.
  • the refrigerant may also be, e.g., carbon dioxide.
  • the water-refrigerant heat exchanger 8 exchanges heat between a high-temperature high-pressure refrigerant discharged from the compressor 2 and water. The detail of an installation structure of the water-refrigerant heat exchanger 8 will be described later.
  • the expansion valve 10 is an example of a decompression apparatus which decompresses a high-pressure refrigerant to change the high-pressure refrigerant into a low-pressure refrigerant.
  • the low-pressure refrigerant subjected to the decompression is brought into a gas-liquid two-phase state.
  • the air-refrigerant heat exchanger 7 exchanges heat between the low-pressure refrigerant and the air.
  • the low-pressure refrigerant evaporates by absorbing heat of the air.
  • the fan 6 blows air to the air-refrigerant heat exchanger 7, and heat exchange in the air-refrigerant heat exchanger 7 can be thereby accelerated.
  • Low-pressure refrigerant gas having evaporated in the air-refrigerant heat exchanger 7 is sucked into the compressor 2.
  • the fan room 15 has space larger than that of the machine room 14.
  • the fan 6 is incorporated into the fan room 15.
  • the fan 6 includes two to three propeller blades, and a motor which rotationally drives the propeller blades.
  • the motor and the propeller blades rotate with electric power supplied from the outside.
  • the air-refrigerant heat exchanger 7 is installed so as to face the fan 6.
  • the air-refrigerant heat exchanger 7 includes a large number of fins formed of aluminum thin plates, and a long refrigerant pipe which is in intimate contact with a large number of the fins formed of aluminum thin plates and is folded back several times.
  • the air-refrigerant heat exchanger 7 has a flat outer shape which is bent into an L shape.
  • the air-refrigerant heat exchanger 7 is installed so as to extend from the rear surface of the heat pump apparatus 100 to the left side surface thereof.
  • An end portion on the side of a rear surface of the air-refrigerant heat exchanger 7 extends to a rear side of the machine room 14.
  • the partition plate 16 has a flat outer shape which is bent into an L shape, and is installed so as to partition space from the front surface of the heat pump apparatus 100 to the end portion on the side of the rear surface of the air-refrigerant heat exchanger 7.
  • heat is exchanged between the refrigerant in the refrigerant pipe and air around the fins.
  • the amount of air flowing between and passing through the individual fines is increased and adjusted by the fan 6, and the amount of heat exchange is thereby increased and adjusted.
  • a heat pump hot water supply system 1 is constituted by the heat pump apparatus 100 and the hot water storage apparatus 33.
  • the hot water storage apparatus 33 includes a hot water storage tank 34 having a capacity of, e.g., about several hundred litters, and a water pump 35 for sending water in the hot water storage tank 34 to the heat pump apparatus 100.
  • the heat pump apparatus 100 and the hot water storage apparatus 33 are connected via an external pipe 36, an external pipe 37, and electrical wiring (the depiction thereof is omitted).
  • a lower portion of the hot water storage tank 34 is connected to an inlet of the water pump 35 via a pipe 38.
  • the external pipe 36 connects an outlet of the water pump 35 and a water inlet valve 28 of the heat pump apparatus 100.
  • the external pipe 37 connects a hot water outlet valve 29 of the heat pump apparatus 100 and the hot water storage apparatus 33.
  • the external pipe 37 can communicate with an upper portion of the hot water storage tank 34 via a pipe 39 in the hot water storage apparatus 33.
  • the hot water storage apparatus 33 further includes a mixing valve 40.
  • a hot water supply pipe 41 which branches off from the pipe 39, a water supply pipe 42 through which water supplied from a water source such as a water supply passes, and a hot water supply pipe 43 through which hot water supplied to a user side passes are connected.
  • the mixing valve 40 adjusts the temperature of supplied hot water by adjusting a mixing ratio of hot water which flows in from the hot water supply pipe 41, i.e., high-temperature water and water which flows in from the water supply pipe 42, i.e., low-temperature water.
  • Hot water obtained by the mixing by the mixing valve 40 is sent to terminals on the user side such as, e.g., a bathtub, a shower, a faucet, and a dishwasher through the hot water supply pipe 43.
  • a water supply pipe 44 which branches off from the water supply pipe 42 is connected to the lower portion of the hot water storage tank 34. Water which flows in from the water supply pipe 44 is stored on a lower side in the hot water storage tank 34.
  • the heat accumulating operation is operation in which hot water is accumulated in the hot water storage tank 34 by sending hot water heated in the heat pump apparatus 100 to the hot water storage apparatus 33.
  • the heat accumulating operation is as follows.
  • the compressor 2, the fan 6, and the water pump 35 are operated.
  • the rotation speed of the motor of the compressor 2 can change in a range of about several tens of rps (Hz) to about several hundred of rps (Hz). With this, it is possible to adjust and control heating power by changing the flow rate of the refrigerant.
  • the expansion valve 10 adjusts the degree of the flow path resistance of the refrigerant. With this, it is possible to adjust and control the pressure of each of the high-pressure refrigerant on the upstream side of the expansion valve 10 and the low-pressure refrigerant on the downstream side thereof.
  • the rotation speed of the compressor 2, the rotation speed of the fan 6, and the degree of the flow path resistance of the expansion valve 10 are controlled in accordance with an installation environment and use conditions of the heat pump apparatus 100.
  • the low-pressure refrigerant is sucked into the compressor 2 through piping.
  • the low-pressure refrigerant is compressed in the compressor 2 to become the high-temperature high-pressure refrigerant.
  • the high-temperature high-pressure refrigerant is discharged from the compressor 2 to the refrigerant pipe.
  • the high-temperature high-pressure refrigerant flows into a refrigerant inlet portion of the water-refrigerant heat exchanger 8 through the piping.
  • the high-temperature high-pressure refrigerant exchanges heat with water in the water-refrigerant heat exchanger 8 to heat water and generate hot water.
  • the refrigerant is reduced in enthalpy and temperature while the refrigerant passes through the water-refrigerant heat exchanger 8.
  • the high-pressure refrigerant reduced in temperature flows into an inlet portion of the expansion valve 10 from a refrigerant outlet portion of the water-refrigerant heat exchanger 8 through the refrigerant pipe.
  • the high-pressure refrigerant is reduced in temperature by being decompressed in the expansion valve 10 to become a low-temperature low-pressure refrigerant.
  • the low-temperature low-pressure refrigerant flows into an inlet portion of the air-refrigerant heat exchanger 7 from an outlet portion of the expansion valve 10 through the refrigerant pipe.
  • water in the lower portion in the hot water storage tank 34 is caused to flow into a water inlet portion of the water-refrigerant heat exchanger 8 through the pipe 38, the external pipe 36, the water inlet valve 28, and an internal pipe 30.
  • the water exchanges heat with the refrigerant in the water-refrigerant heat exchanger 8 and is heated, and hot water is thereby generated.
  • the hot water flows into the upper portion of the hot water storage tank 34 through an internal pipe 31, the hot water outlet valve 29, the external pipe 37, and the pipe 39.
  • hot water heated in the heat pump apparatus 100 may be directly supplied to the user side without being stored in the hot water storage tank 34.
  • the heating medium heated in the heat pump apparatus 100 may be used for indoor heating or the like.
  • FIG. 5 is a configuration diagram showing a principal portion of the water-refrigerant heat exchanger.
  • the water-refrigerant heat exchanger 8 includes heating medium piping 82 and refrigerant piping 84. Water serving as the heating medium flows through the heating medium piping 82. A high-temperature refrigerant sent from the compressor 2 flows through the refrigerant piping 84.
  • one or a plurality of continuous spiral grooves 86 are formed in an outer peripheral surface of the piping.
  • the number of spiral grooves is not particularly limited. In an example of the water-refrigerant heat exchanger 8 shown in FIG. 5 , two spiral grooves 86 are formed in the heating medium piping 82.
  • the refrigerant piping 84 branches at some midpoint such that a plurality of flow paths arranged in parallel are formed.
  • the refrigerant piping 84 branches into first refrigerant piping 841 and second refrigerant piping 842.
  • the first refrigerant piping 841 and the second refrigerant piping 842 are fitted in in a state in which the first refrigerant piping 841 and the second refrigerant piping 842 are spirally wound along the two spiral grooves 86 formed in the heating medium piping 82.
  • the water-refrigerant heat exchanger 8 of Embodiment 1 configured in the above manner has a configuration in which the refrigerant piping 84 is caused to branch into a plurality of the refrigerant pipings and the refrigerant pipings are fitted in the spiral grooves of the heating medium piping 82, and hence it is possible to increase a contact heat transfer area between the refrigerant piping 84 and the heating medium piping 82. In addition, it is also possible to prevent adjacent refrigerant pipings from coming into contact with each other, and hence it is possible to prevent leakage of heat. Further, it is possible to change the contact heat transfer area between the refrigerant piping 84 and the heating medium piping 82 by changing the number of branching of the refrigerant piping 84, and hence it becomes possible to easily optimize flow path design.
  • the water-refrigerant heat exchanger 8 is formed into a hollow cylindrical shape by spirally stacking the heating medium piping 82 around which the refrigerant piping 84 is wound. As shown in FIG. 1 , the water-refrigerant heat exchanger 8 is installed on the base 17 in a lower portion of the machine room 14. In the hollow of the water-refrigerant heat exchanger 8, a column 21 is provided to stand upward from the base 17. The compressor 2 is supported on the column 21. According to such an arrangement of the machine room 14, the water-refrigerant heat exchanger 8 is disposed below the compressor 2.
  • the following effect is obtained by providing the water-refrigerant heat exchanger 8 in the machine room 14.
  • the air path of the fan room 15 is not obstructed by the water-refrigerant heat exchanger 8.
  • the air path of the fan 6 which blows air to the air-refrigerant heat exchanger 7 is effectively secured, and hence it becomes possible to increase heat exchange efficiency of the air-refrigerant heat exchanger 7.
  • FIG. 6 is a front view showing the internal structure of the heat pump apparatus of Embodiment 2.
  • a heat pump apparatus 200 shown in FIG. 6 has a structure common to the heat pump apparatus 100 of Embodiment 1 except that a sound absorbing material 22 is provided.
  • the sound absorbing material 22 is disposed so as to integrally cover the water-refrigerant heat exchanger 8 and the compressor 2.
  • the sound absorbing material 22 is formed of a material having fine voids.
  • the sound absorbing material 22 may include at least one of, e.g., felt, glass wool, and rock wool.
  • the above sound absorbing material 22 has a heat insulation function in addition to the function of absorbing sound.
  • the water-refrigerant heat exchanger 8 is disposed below the compressor 2. Accordingly, it is possible to configure the sound absorbing material 22, which is usually disposed around the compressor 2, such that the sound absorbing material 22 covers the compressor 2 together with the water-refrigerant heat exchanger 8. According to such a configuration, it is possible to suppress a reduction in the temperature of the water-refrigerant heat exchanger 8. With this, it is possible to increase the heat exchange efficiency in the water-refrigerant heat exchanger 8, and hence it becomes possible to increase the efficiency of the heat accumulating operation.
  • the heat pump apparatus 200 has a structure in which the compressor 2 and the water-refrigerant heat exchanger 8 are covered with the single sound absorbing material 22, and hence working efficiency during manufacture is improved. Further, it is not necessary to combine and use a plurality of the sound absorbing materials, and hence the structure contributes to a reduction in manufacturing cost.
  • FIG. 7 is a front view showing the internal structure of the heat pump apparatus of Embodiment 3.
  • a heat pump apparatus 300 shown in FIG. 7 has a structure common to the heat pump apparatus 100 of Embodiment I except that a sheet metal member 24 is newly provided, and except the installation structure of the compressor 2.
  • the sheet metal member 24 is installed on the base 17 so as to cover the entire water-refrigerant heat exchanger 8.
  • the compressor 2 is installed on an upper surface of the sheet metal member 24.
  • the shape of the sheet metal member 24 is not limited. As the shape of the sheet metal member 24, it is possible to use, e.g., a box-like shape.
  • the heat pump apparatus 300 having such a configuration, it is not necessary to install a column for installing the compressor 2 in a hollow portion of the water-refrigerant heat exchanger 8, and hence it becomes possible to use a configuration in which the water-refrigerant heat exchanger 8 can be slid in a front surface direction and be detached. With this, it becomes possible to improve the maintainability of the heat pump apparatus 100.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP18908186.2A 2018-02-27 2018-02-27 Appareil de pompe à chaleur Pending EP3760948A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/007312 WO2019167136A1 (fr) 2018-02-27 2018-02-27 Appareil de pompe à chaleur

Publications (2)

Publication Number Publication Date
EP3760948A1 true EP3760948A1 (fr) 2021-01-06
EP3760948A4 EP3760948A4 (fr) 2021-03-10

Family

ID=67806003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18908186.2A Pending EP3760948A4 (fr) 2018-02-27 2018-02-27 Appareil de pompe à chaleur

Country Status (3)

Country Link
EP (1) EP3760948A4 (fr)
JP (1) JPWO2019167136A1 (fr)
WO (1) WO2019167136A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7317179B1 (ja) 2022-05-16 2023-07-28 株式会社ラックランド 再利用システム及び方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509442B1 (fr) * 1981-07-08 1986-03-07 Sdecc Pompe a chaleur air-exterieur-eau
FR2532729A1 (fr) * 1982-09-06 1984-03-09 Rossignol Sa Pompe a chaleur a structure cellulaire et son procede de fabrication
JPH0820088B2 (ja) * 1987-10-09 1996-03-04 三洋電機株式会社 冷凍ユニット
JP2597761Y2 (ja) * 1990-04-09 1999-07-12 三菱電機株式会社 非利用側熱交換ユニット
JP2000329380A (ja) * 1999-05-18 2000-11-30 Sanyo Electric Co Ltd 空気調和装置の熱源側ユニット
JP3931878B2 (ja) * 2003-11-19 2007-06-20 松下電器産業株式会社 ヒートポンプ式熱源装置
JP2005345006A (ja) * 2004-06-03 2005-12-15 Kansai Electric Power Co Inc:The ヒートポンプ式給湯暖房装置
JP4450196B2 (ja) * 2004-09-24 2010-04-14 株式会社デンソー ヒートポンプ装置
JP2008224072A (ja) * 2007-03-09 2008-09-25 Matsushita Electric Ind Co Ltd ヒートポンプ給湯機
JP2010032175A (ja) * 2008-07-31 2010-02-12 Hitachi Appliances Inc ヒートポンプ給湯機
JP5637016B2 (ja) * 2011-03-07 2014-12-10 三菱電機株式会社 ヒートポンプ式給湯機の室外機
JP5630427B2 (ja) * 2011-11-25 2014-11-26 三菱電機株式会社 ヒートポンプ給湯室外機
JP6687022B2 (ja) * 2015-04-28 2020-04-22 パナソニックＩｐマネジメント株式会社 冷凍サイクル装置
JP6643627B2 (ja) * 2015-07-30 2020-02-12 パナソニックＩｐマネジメント株式会社 熱生成ユニット

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Publication number Publication date
EP3760948A4 (fr) 2021-03-10
WO2019167136A1 (fr) 2019-09-06
JPWO2019167136A1 (ja) 2020-08-06

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