WO2016088748A1 - Unité extérieure pour dispositif à cycle de réfrigération - Google Patents

Unité extérieure pour dispositif à cycle de réfrigération Download PDF

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Publication number
WO2016088748A1
WO2016088748A1 PCT/JP2015/083725 JP2015083725W WO2016088748A1 WO 2016088748 A1 WO2016088748 A1 WO 2016088748A1 JP 2015083725 W JP2015083725 W JP 2015083725W WO 2016088748 A1 WO2016088748 A1 WO 2016088748A1
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WO
WIPO (PCT)
Prior art keywords
duct
heat exchange
exchange chamber
outdoor unit
vertical direction
Prior art date
Application number
PCT/JP2015/083725
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English (en)
Japanese (ja)
Inventor
啓浩 鈴木
祐輔 田島
浩一 小谷
Original Assignee
東芝キヤリア株式会社
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 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to CN201580051140.4A priority Critical patent/CN106716022B/zh
Priority to JP2016562631A priority patent/JP6298542B2/ja
Publication of WO2016088748A1 publication Critical patent/WO2016088748A1/fr

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow

Definitions

  • the present invention relates to an outdoor unit of a refrigeration cycle apparatus, and more particularly to a cooling structure for electrical components provided in the outdoor unit.
  • the outdoor unit of the refrigeration cycle apparatus is partitioned by a partition plate into a machine room in which a compressor, a four-way valve and the like are arranged, and a heat exchange room in which a heat exchanger and a blower fan are arranged.
  • an electrical component unit for driving and controlling the compressor and the blower fan is disposed in the machine room.
  • the electrical components of the electrical component unit generate heat as the compressor and the blower fan are driven, and the electrical components are cooled using a heat sink or the like in order to prevent failure or malfunction of the electrical components due to the generated heat.
  • the outdoor unit of the management cycle apparatus is preferred to have a smaller casing size when the maximum operating capacity (kW) is the same, and when the casing size is the same, the maximum operating capacity (kW) is higher. Larger ones are preferred.
  • the housing size is reduced, the heat generated from the electrical components is easily generated in the machine room, and if the maximum operating capacity is increased, the amount of heat generated by the electrical components that drive and control them increases as the compressor and the blower become larger. In any case, it is necessary to efficiently cool the electrical component.
  • the electrical component is cooled using a part of the refrigerant in the refrigeration cycle or the electrical component is cooled using a heat pipe. (For example, refer to Patent Document 1).
  • Embodiments of the present invention have been made in view of the above problems, and an object of the present invention is to provide an outdoor unit of a refrigeration cycle apparatus that can efficiently cool electrical components while suppressing an increase in cost. .
  • An outdoor unit of a refrigeration cycle apparatus includes a housing, a partition plate inside the housing, a heat exchange chamber, and a machine room in a vertical direction.
  • An outdoor unit of a refrigeration cycle apparatus in which a heat exchanger and a blower are disposed in the heat exchange chamber, and a compressor and an electrical component unit are disposed in the machine room,
  • the partition plate is provided with a communication hole that communicates the machine room and the heat exchange chamber that are partitioned in the vertical direction inside the housing, and further provided with a duct that covers the heat exchange chamber side of the communication hole,
  • the duct is characterized in that an intermediate portion in the vertical direction is formed so as to protrude to the opposite side of the machine room from both upper and lower end portions.
  • the outdoor unit of the refrigeration cycle apparatus includes a housing composed of a bottom panel, a front panel, a back panel, and left and right side panels, and a heat exchanger and a blower inside the housing.
  • a partition plate that is vertically partitioned into a heat exchange chamber in which the compressor and the electrical component unit are disposed, and at least one provided between the heat exchange and the front panel
  • An outdoor unit of a refrigeration cycle apparatus provided with a blower wherein the partition plate is formed with a communication hole that communicates the machine chamber and the heat exchange chamber that are partitioned in the vertical direction inside the housing, and
  • a duct is provided to cover the heat exchange chamber side of the previous communication hole provided in the partition plate, and the duct is formed such that an intermediate portion in the vertical direction protrudes toward the heat exchange chamber side from both upper and lower end portions.
  • FIG. 2 is an exploded perspective view of an outdoor unit of the refrigeration cycle apparatus according to the embodiment shown in FIG. 1. These are front views which show the state which removed some components of the outdoor unit of the refrigerating-cycle apparatus concerning the embodiment. These are exploded perspective views of the electrical component unit of the outdoor unit of the refrigeration cycle apparatus according to the embodiment. These are the perspective views of the duct of the outdoor unit of the refrigerating cycle device concerning the embodiment, and the inside (5A) is the perspective view which looked at the duct from the machine room 2B side, and (5B) looked at the duct from the heat exchange room side. FIG. These are front views which show the state which removed some components of the outdoor unit of the refrigerating-cycle apparatus concerning the 2nd Embodiment of this invention.
  • an outdoor unit 1 (hereinafter simply referred to as an outdoor unit 1) of a refrigeration cycle apparatus according to the first embodiment includes a bottom panel 3 constituting a bottom surface, a front panel 4 constituting a front surface, a front panel 4 and the like.
  • Service panel 5 constituting the front
  • right side panel 6 constituting the right side and part of the back side
  • left side panel 7 comprising a plurality of air inlets and constituting the left side
  • top panel 8 constituting the ceiling surface
  • the housing 2 is configured by the above.
  • the bottom panel 3 has a rectangular shape in plan view, and a folded portion 3a (FIG. 2) is provided along the periphery.
  • a folded portion 3a (FIG. 2) is provided along the periphery.
  • two left and right leg members 9, 9 are attached in parallel to the width direction of the outdoor unit 1.
  • the leg members 9 and 9 support the outdoor unit 1 and fix the outdoor unit 1 at the installation location.
  • the top panel 8 has a rectangular shape substantially the same as the bottom panel 3 in plan view, and is provided with a folded portion 8a (FIG. 2) along the periphery.
  • an L-shaped heat exchanger 10 is arranged in a plan view from the back surface to the left side surface of the outdoor unit 1.
  • the heat exchanger 10 is, for example, a fin tube type heat exchanger, and its long side portion 10 a constitutes the back surface of the housing 2 together with the right side panel 6, and the short side portion 10 b faces the inside of the left side panel 7. To be arranged.
  • a partition plate 12 extending from the bottom panel 3 to the top panel 8 is provided.
  • the inside of the housing 2 is partitioned into a heat exchange chamber 2A and a machine chamber 2B.
  • blowers 11A and 11B are arranged vertically between the heat exchanger 10 and the front panel 4.
  • the upper side is the blower 11A
  • the lower side is the blower 11B.
  • Each of the blowers 11A and 11B includes a fan motor 11a and a blower fan 11b attached to the rotation shaft of the fan motor 11a.
  • the blowers 11A and 11B are supported by a motor base 13 that stands upright in the heat exchange chamber 2A.
  • the lower side of the motor base 13 is fixed to the bottom panel 3, and the upper side is fixed to the upper end of the front panel 4.
  • the front panel 4 is provided with two air outlets 41A and 41B. Blowers 11A and 11B are arranged to face the air outlets 41A and 41B, respectively.
  • bell mouths 42A and 42B are provided integrally with the air outlets 41A and 41B, respectively, inside the heat exchange chamber 2A of the air outlets 41A and 41B.
  • Fan guards 43A and 43B that cover the air outlets 41A and 41B are attached to the outside of the front panel 4.
  • refrigeration cycle components such as the compressor 14, the four-way valve 15, the accumulator 16, and the electrical component unit 20 are accommodated. 2 and 3, the compressor 13 is covered with a soundproof material.
  • the front of the machine room 2B is covered with a service panel 5 that is detachably attached.
  • the right side surface and the back surface of the machine room 2B are covered with the right side panel 6, and an outside air introduction part 6a for taking outside air into the machine room 2B is provided near the back surface below the right side panel 6.
  • the outside air introduction portion 6a is provided in a louver shape having a plurality of horizontally long slits.
  • the electrical component unit 20 is disposed on the front side of the machine room 2B.
  • the electrical component unit 20 is disposed across the partition plate 12 and the right side panel 6 and is disposed at an intermediate position in the vertical direction of the machine room 2B.
  • FIG. 4 is a perspective view showing details of the electrical component unit 20.
  • the electrical component unit 20 includes a frame 21 made of sheet metal, and the control board 30 on which various electrical components are mounted is accommodated in the frame 21.
  • the control board 30 is surrounded by the upper surface, back surface, left side surface, and right side surface of the frame 21.
  • a heat sink 31 is attached to the inverter circuit portion mounted on the control board 30.
  • the inverter circuit is for driving the compressor 13 and the fans 11 ⁇ / b> A and 11 ⁇ / b> B, and is a component that generates an extremely large amount of heat in the electrical component unit 20.
  • the length dimension of the heat sink 31 in the longitudinal direction is provided substantially the same as the length dimension of the control board 30 in the vertical direction.
  • the heat sink 31 has a plurality of radiating fins 31a, and these radiating fins 31a are provided in parallel in the vertical direction with a predetermined gap.
  • the heat sink 31 is disposed on the front side of the electrical component unit 20 and on the partition plate 12 side, that is, on the left front side of the electrical component unit 20.
  • the front side, the right side, and the bottom side of the heat sink 31 are covered with a heat sink duct 22 made of sheet metal.
  • the heat sink duct 22 is provided with a front air supply portion 24 that is a vertically long hole in a portion facing the front right side of the heat sink 31, and an internal air supply that is a vertically long hole in a portion facing the right side surface of the heat sink 31.
  • a portion 25 is provided.
  • a shielding plate 23 made of sheet metal is attached adjacent to the heat sink duct 22 on the front right side of the electrical component unit 20.
  • the shielding plate 23 has a front surface, a right side surface, and a bottom surface.
  • two hooking holes 23a, 23a are provided with a predetermined interval in the vertical direction.
  • two hooking claws 21a and 21a that engage with the hooking holes 23a and 23a are provided. With this engageable configuration, the shielding plate 23 is attached to the frame 21 so as to be freely opened and closed.
  • a space S1 is formed in the electrical component unit 20 by the frame 21, the heat sink duct 22, and the shielding plate 23.
  • the control board 30 is disposed in the space S1.
  • a terminal block 32 to which an electric wire for electrically connecting the outdoor unit 1 and the indoor unit (not shown) is connected is attached below the space S1.
  • a back air supply unit 26 composed of a plurality of vertically long slots is provided on the right side of the back surface of the frame 21 .
  • an exhaust portion 27 formed of a vertically long slot is provided on the left side surface of the frame 21 .
  • a first air flow passage 28 that passes through the rear air supply portion 26, the space S 1, the internal air supply portion 25, the heat sink duct 22, and the exhaust portion 27 is formed. Further, a second air flow passage 29 that passes through the front air supply unit 24, the heat sink duct 22, and the exhaust unit 27 is formed. The first air flow passage 28 and the second air flow passage 29 merge in the heat sink duct 22.
  • a communication hole 12 a which is a vertically long hole is provided at the attachment position of the electrical component unit 20 of the partition plate 12.
  • the exhaust part 27 of the electrical component unit 20 and the communication hole 12a of the partition plate 12 face each other.
  • a sheet metal duct 50 is attached to the partition plate 12 on the heat exchange chamber 2A side so as to cover the communication hole 12a.
  • FIG. 5 (5A) is a perspective view of the duct 50 viewed from the machine room 2B side
  • FIG. 5 (5B) is a perspective view of the duct 50 viewed from the heat exchange chamber 2A side.
  • the duct 50 has a front side surface 50c and a back side surface 50d having a substantially isosceles trapezoidal shape (hereinafter simply referred to as a trapezoid) with the upper base on the blower 11A, 11B side and the lower bottom on the partition plate 12 side.
  • a surface constituting the upper bottom portion of the trapezoid formed between the front side surface 50c and the back side surface 50d is an upper bottom surface 50a
  • a surface constituting the lower low portion is a lower bottom surface 50b.
  • substantially the entire bottom surface 50b is opened.
  • the upper surface is the upper inclined surface 50e
  • the lower surface is the lower inclined surface 50f.
  • the duct 50 is formed such that the intermediate portion protrudes from the opposite ends to the opposite side of the machine room 2B, that is, the heat exchange chamber side.
  • a space S ⁇ b> 2 is formed between the partition plate 12 and the duct 50 by attaching the lower bottom surface 50 b side of the duct 50 in close contact with the partition plate 12.
  • a series of exhaust holes 51 are provided on the upper bottom surface 50a, the upper slope 50e, and the lower slope 50f of the duct 50 near the rear side face 50d. Since the exhaust hole 51 is formed over three surfaces of the upper bottom surface 50a, the upper slope 50e, and the lower slope 50f, the opening area can be increased.
  • a baffle plate 51a that prevents intrusion of rainwater is provided inside the exhaust hole 51 (space S2 side).
  • the baffle plate 51 a is formed by bending inward from the opening end portion on the front side of the exhaust hole 51. Furthermore, since the position of the exhaust hole 51 in the depth direction is closer to the back side than the position of the communication hole 12a of the partition plate 12, even if rainwater enters the duct 50, the electrical equipment is directly connected through the communication hole 12a.
  • the product unit 20 does not enter.
  • the duct 50 has an upper slope 50e and a lower slope 50f, and these slopes function as a rectifying plate, and regulate the airflow in the vicinity of the duct 50.
  • an upper fixing piece 52 and a lower fixing piece 53 are provided at the end of the duct 50 in the vertical direction, and the duct 50 is fixed to the partition plate 12 via these fixing pieces 52 and 53.
  • the upper fixed piece 52 is integrally provided with an upper lead wire guide 52a
  • the lower fixed piece 53 is integrally provided with a lower lead wire guide 53a.
  • a part of the lead wire 11c extending from the fan motor 11a of the upper blower 11A is held by the upper lead wire guide 52a and guided to the electrical component unit 20.
  • a part of the lead wire 11c extending from the fan motor 11a of the lower blower 11B is held by the lower lead wire guide 53a and guided to the electrical component unit 20.
  • the lead wire guides 52a and 53a are integrally provided in the duct 50, the number of parts can be reduced, and the assembly work and the lead wire 11c can be easily routed.
  • the peripheral end portion of the upper lead wire guide 52a is subjected to hemming (bending) so that the lead wire is not damaged at the end portion of the sheet metal.
  • a binding band fixing piece 53b is provided at the peripheral end of the lower lead wire guide 53a instead of being hemmed, and a part of the lead wire 11c is fixed to the binding band fixing piece 53b using a binding band. It can be done.
  • By fixing a part of the lead wire 11c to the binding band fixing piece 53b it is possible to prevent rubbing between the lead wire 11c and the end of the lower lead wire guide 53a due to vibration during transportation or operation. Even if hemming is not performed, damage to the lead wire 11c can be prevented.
  • the shapes of the lead wire guides 52a and 53a are different from each other, it becomes easy for an assembly operator to recognize the vertical direction of the duct 50, and an attachment error during the assembly operation can be prevented.
  • a necessary control signal is sent from the electrical component unit 20 to the electric parts such as the compressor 13 and the blower 11. While the compressor 13 is driven, the fans 11A and 11B start blowing. The outside air is sucked into the heat exchange chamber 2A and flows through the heat exchanger 10, and after exchanging heat with the refrigerant guided to the heat exchanger 10 as the compressor 13 is driven, the bell mouths 42A and 42B on the front panel 4 and It blows off to the front side of the outdoor unit 1 through the fan guards 43A and 43B.
  • the heat exchange chamber 2A and the machine room 2B communicate with each other through the duct 50, the communication hole 12a of the partition plate 12 and the electrical component unit 20, the heat exchange chamber 2A is negatively pressured by the blowing action of the blowers 11A and 11B.
  • the air in the machine room 2B is discharged to the heat exchange room 2A side. Accordingly, outside air flows into the machine room 2B from the outside air introduction portion 6a provided below the right side panel 6.
  • the outside air that has flowed into the machine room 2 ⁇ / b> B from the outside air introduction unit 6 a passes through the two air flow passages 28 and 29 formed in the electrical component unit 20.
  • First, a state where air flows through the first air flow passage 28 will be described.
  • Part of the air in the machine room 2 ⁇ / b> B flows into the space S ⁇ b> 1 of the electrical component unit 20 through the back surface air supply unit 26 of the electrical component unit 20.
  • the air flowing into the space S 1 cools the control board 30 when passing through the control board 30, and flows into the heat sink duct 22 through the internal air supply unit 25.
  • the air that flows into the heat sink duct 22 cools the heat sink 31 and is discharged from the exhaust unit 27 of the frame 21 to the outside of the electrical component unit 20.
  • the duct 50 for discharging the air in the machine room 2B to the heat exchange chamber 2A has a substantially isosceles trapezoidal shape with an intermediate portion protruding to the opposite side of the machine room 2B. And the air in the machine room 2B can be efficiently discharged to the heat exchange chamber 2A side. As a result, heat is less likely to be generated in the machine room 2B and the electrical component unit 20, so that stable operation is possible even under conditions of, for example, an outside air temperature of 40 ° C. to 50 ° C. or even higher temperatures.
  • FIG. 6 is an exploded front view of the outdoor unit of the refrigeration cycle apparatus according to the second embodiment of the present invention. About each part of this 2nd Embodiment, the part same as each part of the outdoor unit of 1st Embodiment is shown with the same code
  • the second embodiment is different from the first embodiment in that it does not include two blowers 11A and 11B but includes one blower 11C.
  • the outdoor unit 100 according to the second embodiment has a maximum operating capacity (kW) set lower than the outdoor unit 1 of the first embodiment, and the height dimension of the heat exchanger 10 and the outdoor unit 100 Small height dimension. Therefore, one blower 11C is provided.
  • the configurations of the electrical component unit 20 and the duct 50 are the same as those in the first embodiment, and in the second embodiment as well, the air in the machine room 2B is efficiently heated as in the first embodiment. It can exhaust to the exchange chamber 2A side.
  • the lead wire 11c (not shown) of the fan motor 11a of the blower 11C is guided to the electrical component unit 20 via the lower lead wire guide 53b.
  • the heat generated in the machine room can be efficiently discharged to the heat exchange chamber side.
  • the present invention is not limited to the above embodiment, and various modifications are possible.
  • the front side surface 50c and the back side surface 50d have a substantially isosceles trapezoidal shape, but the middle portion projects to the opposite side of the machine room. If present, a triangular shape, an arc shape, or a trumpet shape gradually reducing from the lower bottom surface 50b toward the upper bottom surface 50a may be used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention concerne une unité extérieure pour un dispositif à cycle de réfrigération, l'unité comportant un logement, l'intérieur du logement étant divisé dans la direction verticale en une chambre d'échange thermique et une chambre mécanique par une plaque de séparation, un échangeur thermique et une soufflante étant disposés dans la chambre d'échange thermique, et un compresseur et une unité de composants électriques étant disposés dans la chambre mécanique. La plaque de séparation comporte : des orifices de communication qui permettent la communication entre la chambre mécanique et la chambre d'échange thermique, lesquels divisent l'intérieur du logement dans la direction verticale ; et un conduit qui couvre le côté chambre d'échange thermique des orifices de communication. Le conduit est formé de sorte que la partie centrale de celui-ci dans la direction verticale fait saillie davantage vers le côté opposé de la chambre mécanique que l'une et l'autre des parties d'extrémité du conduit dans la direction verticale.
PCT/JP2015/083725 2014-12-05 2015-12-01 Unité extérieure pour dispositif à cycle de réfrigération WO2016088748A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580051140.4A CN106716022B (zh) 2014-12-05 2015-12-01 制冷循环装置的室外单元
JP2016562631A JP6298542B2 (ja) 2014-12-05 2015-12-01 冷凍サイクル装置の室外ユニット

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-247234 2014-12-05
JP2014247234 2014-12-05

Publications (1)

Publication Number Publication Date
WO2016088748A1 true WO2016088748A1 (fr) 2016-06-09

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JP (1) JP6298542B2 (fr)
CN (1) CN106716022B (fr)
WO (1) WO2016088748A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3327362A4 (fr) * 2016-09-27 2018-11-07 Mitsubishi Electric Corporation Unité extérieure de climatiseur
WO2020066334A1 (fr) * 2018-09-26 2020-04-02 ダイキン工業株式会社 Unité d'extérieur de climatiseur
WO2021192828A1 (fr) * 2020-03-25 2021-09-30 ヤンマーパワーテクノロジー株式会社 Pompe à chaleur

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110736154B (zh) * 2019-09-30 2022-03-29 青岛海尔空调器有限总公司 空调室外机

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JPH0926164A (ja) * 1995-07-07 1997-01-28 Fujitsu General Ltd 空気調和機の室外機
JP2002250544A (ja) * 2001-02-22 2002-09-06 Toshiba Kyaria Kk 空気調和機の室外機
JP2003065563A (ja) * 2001-08-23 2003-03-05 Toshiba Kyaria Kk 空気調和機の室外ユニット
JP2011149655A (ja) * 2010-01-25 2011-08-04 Mitsubishi Electric Corp 空気調和機の室外機及びこれを備えた空気調和機
JP2012159223A (ja) * 2011-01-31 2012-08-23 Fujitsu General Ltd 空気調和機の室外機

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JP2003097828A (ja) * 2001-09-21 2003-04-03 Toshiba Kyaria Kk 空気調和機の室外機
JP4660130B2 (ja) * 2003-09-30 2011-03-30 三洋電機株式会社 空気調和機の室外機
CN201277658Y (zh) * 2008-10-17 2009-07-22 广东志高空调有限公司 分体式空调器室外机

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Publication number Priority date Publication date Assignee Title
JPH0926164A (ja) * 1995-07-07 1997-01-28 Fujitsu General Ltd 空気調和機の室外機
JP2002250544A (ja) * 2001-02-22 2002-09-06 Toshiba Kyaria Kk 空気調和機の室外機
JP2003065563A (ja) * 2001-08-23 2003-03-05 Toshiba Kyaria Kk 空気調和機の室外ユニット
JP2011149655A (ja) * 2010-01-25 2011-08-04 Mitsubishi Electric Corp 空気調和機の室外機及びこれを備えた空気調和機
JP2012159223A (ja) * 2011-01-31 2012-08-23 Fujitsu General Ltd 空気調和機の室外機

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3327362A4 (fr) * 2016-09-27 2018-11-07 Mitsubishi Electric Corporation Unité extérieure de climatiseur
WO2020066334A1 (fr) * 2018-09-26 2020-04-02 ダイキン工業株式会社 Unité d'extérieur de climatiseur
WO2021192828A1 (fr) * 2020-03-25 2021-09-30 ヤンマーパワーテクノロジー株式会社 Pompe à chaleur
JP2021156442A (ja) * 2020-03-25 2021-10-07 ヤンマーパワーテクノロジー株式会社 ヒートポンプ
JP7454977B2 (ja) 2020-03-25 2024-03-25 ヤンマーパワーテクノロジー株式会社 ヒートポンプ

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CN106716022B (zh) 2019-06-14
JPWO2016088748A1 (ja) 2017-06-22
JP6298542B2 (ja) 2018-03-20
CN106716022A (zh) 2017-05-24

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