EP4290145A1 - Ausseneinheit und wärmepumpenkreislaufvorrichtung - Google Patents

Ausseneinheit und wärmepumpenkreislaufvorrichtung Download PDF

Info

Publication number
EP4290145A1
EP4290145A1 EP23177517.2A EP23177517A EP4290145A1 EP 4290145 A1 EP4290145 A1 EP 4290145A1 EP 23177517 A EP23177517 A EP 23177517A EP 4290145 A1 EP4290145 A1 EP 4290145A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
outdoor unit
side heat
refrigerant
cover member
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
EP23177517.2A
Other languages
English (en)
French (fr)
Inventor
Jun Yoshida
Ko Inagaki
Yuki YAMAOKA
Shunji Moriwaki
Shigeo Aoyama
Kazuhito Nakatani
Masaaki Nagai
Yohei MATSUNAMI
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP4290145A1 publication Critical patent/EP4290145A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to an outdoor unit and a heat pump cycle device.
  • WO2020-170327 discloses a technology including: a blower chamber in which a fan is stored; a first mechanical chamber in which a compressor is stored; a second mechanical chamber in which a controller is stored; and a third chamber in which a wiring portion connecting the compressor and the controller to each other is stored.
  • the first mechanical chamber and the second mechanical chamber are disposed so that the blower chamber is interposed therebetween, and the third mechanical chamber is disposed between the first mechanical chamber and the second mechanical chamber in a first direction orthogonal to a rotation axis of a fan, and is arranged alongside the fan in a second direction orthogonal to each of the rotation axis and the first direction.
  • the present disclosure provides an outdoor unit and a heat pump cycle device which use a refrigerant and are capable of improving safety while avoiding electric leakage.
  • An outdoor unit includes: a compressor, a use side heat exchanger, expansion means, and a heat source side heat exchanger stored inside a housing; a refrigerant circuit connecting these members annularly and using a flammable refrigerant; a blower device for circulating air through the heat source side heat exchanger; and an electrical equipment box, wherein the heat pump cycle device has a cover member covering from an end portion of the heat source side heat exchanger to a portion between a refrigerant connection port and a water connection port of the use side heat exchanger.
  • the outdoor unit according the present disclosure can prevent water leaked from the use side heat exchanger from hitting contacts of the compressor and a four-way valve in the mechanical chamber by the cover member. Therefore, it is possible to reduce the possibility of explosion, and improve safety.
  • the present disclosure provides an outdoor unit and a heat pump cycle device which use a refrigerant and are capable of improving safety while avoiding electric leakage.
  • FIG. 1 is a perspective view of an outdoor unit of a heat pump cycle device according to Embodiment 1.
  • FIG. 2 is a front view of the outdoor unit according to Embodiment 1 in which machines such as a compressor are omitted.
  • FIG. 3 is a perspective view, as viewed from the front side, of the outdoor unit according to Embodiment 1 in which machines such as the compressor are omitted.
  • FIG. 4 is a perspective view, as viewed from the rear side, showing a state in which panels around the outdoor unit according to Embodiment 1 are removed.
  • FIG. 5 is a front view showing a schematic structure of the outdoor unit according to Embodiment 1.
  • FIG. 6 is a plan view showing a schematic structure of the outdoor unit according to Embodiment 1.
  • an outdoor unit 2 of a heat pump cycle device 1 has a box-shaped housing 10.
  • each part of the housing 10 is made of a steel plate.
  • a partition plate 11 extending in the up-down direction is provided inside the housing 10.
  • the inside space of the housing 10 is partitioned into a blower chamber 12 and a mechanical chamber 13 by the partition plate 11.
  • the housing 10 has a bottom plate 14 forming a bottom surface of the housing 10, a right-side front panel 15a and a right-side rear panel 15b covering the mechanical chamber 13 of the housing 10 from the front and rear thereof, a front panel 16 covering a front side of the blower chamber 12, and a top plate 17 covering a top side of the housing 10.
  • the front panel 16 is provided with a ventilation part 18 formed in a mesh shape to allow passage of air.
  • a heat source side heat exchanger 20 and a blower device 21 are installed in the blower chamber 12.
  • the heat source side heat exchanger 20 of the present embodiment extends along a height direction of the housing 10, and is formed in a substantially L shape in plan view of the housing 10 so as to face a side surface and a back surface of the housing 10.
  • heat source side heat exchanger 20 for example, a fin-tube heat exchanger is used.
  • blower device 21 for example, an axial fan with a propeller-shaped impeller is used.
  • the blower device 21 is disposed such that an axial flow direction is directed to the ventilation part 18.
  • a compressor 22 Stored in the mechanical chamber 13 are various pieces of equipment, such as a compressor 22, a use side heat exchanger 23, and expansion means 24 (see FIG. 8 ), forming a refrigerant circuit, and refrigerant piping 25 (see FIG. 8 ) connecting these pieces of equipment to each other.
  • a plate heat exchanger is used for the use side heat exchanger 23, for example.
  • An upper portion of the partition plate 11 is cut out to enable installation of an electrical equipment box 30.
  • the electrical equipment box 30 is installed in the cut-out part of the upper portion of the partition plate 11.
  • the electrical equipment box 30 is disposed across the mechanical chamber 13 and the blower chamber 12.
  • FIG. 7 is a perspective view showing the use side heat exchanger 23.
  • a plate heat exchanger is shown as the use side heat exchanger 23.
  • a refrigerant and water are used as a heat medium.
  • refrigerant connection ports 40, 41, and water connection ports 42, 43 are provided side by side in the left-right direction.
  • the refrigerant connection port 40 functions as a refrigerant inlet
  • the refrigerant connection port 41 functions as a refrigerant outlet
  • the water connection port 43 functions as a water inlet
  • the water connection port 42 functions as a water outlet.
  • the housing 10 has a cover member 50.
  • the cover member 50 is mounted such that the cover member 50 is in contact with an end portion of the heat source side heat exchanger 20 at one end, extends in the left-right direction of the housing 10, and is in contact with the portion between the refrigerant connection ports 40, 41 and the water connection ports 42, 43 of the use side heat exchanger 23 at another end.
  • the refrigerant connection ports 40, 41 of the use side heat exchanger 23 are located on the front side of the cover member 50, and the water connection ports 42, 43 are located on the rear side of the cover member 50.
  • an upper end of the cover member 50 is formed to be slightly lower than an upper end of the heat source side heat exchanger 20. Consequently, a ventilable space is formed between the upper end of the cover member 50 and a lower surface of the top plate 17.
  • a space allowing discharge of water is formed between a lower end of the cover member 50 and the bottom plate 14 of the housing 10.
  • FIG. 8 is a circuit diagram showing the refrigerant circuit of the heat pump cycle device 1 according to Embodiment 1.
  • the compressor 22, a four-way valve 27, the use side heat exchanger 23, the expansion means 24, and the heat source side heat exchanger 20 are annularly connected through the predetermined refrigerant piping 25 so as to form the refrigerant circuit.
  • Predetermined water supply piping 28 is connected to the use side heat exchanger 23, and heat exchange is performed between the refrigerant circulating in the refrigerant circuit and water in the use side heat exchanger 23.
  • a flammable refrigerant is used as the refrigerant.
  • the flammable refrigerant is R32 or a mixed refrigerant containing 70 weight percent or more of R32, or propane or a mixed refrigerant containing propane.
  • an inflammable refrigerant may be used as the refrigerant, instead of the flammable refrigerant.
  • the refrigerant compressed to high temperature and high pressure by the compressor 22 flows as shown by the solid-line arrows in FIG. 8 , is sent to the use side heat exchanger 23, and is cooled by heat exchange with the water flowing through the water supply piping 28, and the water becomes hot water by receiving the heat of the refrigerant, and is supplied to a predetermined location.
  • the refrigerant discharged from the use side heat exchanger 23 is decompressed by the expansion means 24, is heat-exchanged by the heat source side heat exchanger 20 to be a gas refrigerant, and is returned again to the compressor 22.
  • the refrigerant flows as shown by the broken-line arrows in FIG. 8 , is heat-exchanged with outside air by the heat source side heat exchanger 20, is decompressed by the expansion means 24, is sent to the use side heat exchanger 23 so as to cool the water flowing through the water supply piping 28, and is then returned again to the compressor 22.
  • the plate heat exchanger which is used as the use side heat exchanger 23 performs heat exchange between the water and the compressed refrigerant to produce hot water or cool water, and uses O-rings or the like to seal against water.
  • the cover member 50 partitioning from the end portion of the heat source side heat exchanger 20 to the water circuit of the use side heat exchanger 23 is provided, it is possible to prevent the water leaked from the use side heat exchanger 23 from hitting the contacts of the compressor 22 and the four-way valve 27 in the mechanical chamber 13. Consequently, it is possible to reduce the possibility of explosion, and improve safety.
  • the outdoor unit 2 includes: the compressor 22, the use side heat exchanger 23, the expansion means 24, and the heat source side heat exchanger 20 stored inside the housing 10; the refrigerant circuit connecting these members annularly through the refrigerant piping 25, and using a flammable refrigerant; the blower device 21 for circulating air through the heat source side heat exchanger 20; and the electrical equipment box 30, wherein the outdoor unit 2 has the cover member 50 covering from an end portion of the heat source side heat exchanger 20 to a portion between the refrigerant connection ports 40, 41 and the water connection ports 42, 43 of the use side heat exchanger 23.
  • the outdoor unit 2 has a ventilable space between the upper end of the cover member 50 and the top plate 17 of the housing 10.
  • the outdoor unit 2 has a space allowing discharge of water below the cover member 50.
  • a flammable refrigerant to be used in the outdoor unit 2 is R32 or a mixed refrigerant containing 70 weight percent or more of R32, or propane or a mixed refrigerant containing propane.
  • Embodiment 1 is described as an example of the technology disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which modifications, replacements, additions, omissions, etc. are made.
  • An outdoor unit including: a compressor, a use side heat exchanger, expansion means, and a heat source side heat exchanger stored inside a housing; a refrigerant circuit connecting these members annularly and using a flammable refrigerant; a blower device for circulating air through the heat source side heat exchanger; and an electrical equipment box, wherein the outdoor unit has a cover member covering from an end portion of the heat source side heat exchanger to a portion between a refrigerant connection port and a water connection port of the use side heat exchanger.
  • water leaked in the use side heat exchanger can be discharged together with condensed water produced in the mechanical chamber.
  • the outdoor unit according to any one of configuration 1 to configuration 3, wherein the flammable refrigerant is R32 or a mixed refrigerant containing 70 weight percent or more of R32, or propane or a mixed refrigerant containing propane.
  • a heat pump cycle device including the outdoor unit according to any one of configuration 1 to configuration 4.
  • the heat pump cycle device since the heat pump cycle device has the outdoor unit, it is possible to obtain the heat pump cycle device that can prevent water leaked from the use side heat exchanger from hitting the contacts of the compressor and the four-way valve in the mechanical chamber by the cover member, reduce the possibility of explosion, and improve safety.
  • the present disclosure can be suitably used for a heat pump cycle device that can prevent water leaked from a use side heat exchanger from hitting contacts of a compressor and a four-way valve in a mechanical chamber, reduce the possibility of explosion, and improve safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP23177517.2A 2022-06-08 2023-06-06 Ausseneinheit und wärmepumpenkreislaufvorrichtung Pending EP4290145A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022093222A JP2023180099A (ja) 2022-06-08 2022-06-08 室外機およびヒートポンプサイクル装置

Publications (1)

Publication Number Publication Date
EP4290145A1 true EP4290145A1 (de) 2023-12-13

Family

ID=86693036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23177517.2A Pending EP4290145A1 (de) 2022-06-08 2023-06-06 Ausseneinheit und wärmepumpenkreislaufvorrichtung

Country Status (2)

Country Link
EP (1) EP4290145A1 (de)
JP (1) JP2023180099A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011196586A (ja) * 2010-03-18 2011-10-06 Mitsubishi Electric Corp ヒートポンプ給湯機
JP2012037162A (ja) * 2010-08-09 2012-02-23 Chofu Seisakusho Co Ltd ヒートポンプ式熱源装置
WO2020170327A1 (ja) 2019-02-19 2020-08-27 三菱電機株式会社 熱源機および冷凍サイクル装置
JP2021188808A (ja) * 2020-05-28 2021-12-13 日立グローバルライフソリューションズ株式会社 ヒートポンプ式給湯機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011196586A (ja) * 2010-03-18 2011-10-06 Mitsubishi Electric Corp ヒートポンプ給湯機
JP2012037162A (ja) * 2010-08-09 2012-02-23 Chofu Seisakusho Co Ltd ヒートポンプ式熱源装置
WO2020170327A1 (ja) 2019-02-19 2020-08-27 三菱電機株式会社 熱源機および冷凍サイクル装置
JP2021188808A (ja) * 2020-05-28 2021-12-13 日立グローバルライフソリューションズ株式会社 ヒートポンプ式給湯機

Also Published As

Publication number Publication date
JP2023180099A (ja) 2023-12-20

Similar Documents

Publication Publication Date Title
JP6565272B2 (ja) 冷凍装置の熱源ユニット
WO2018142509A1 (ja) 空気調和装置
EP3112768B1 (de) Klimaanlage
EP4290145A1 (de) Ausseneinheit und wärmepumpenkreislaufvorrichtung
CN109185982B (zh) 空调装置
JPWO2019130383A1 (ja) 空気調和装置
JP2000039185A (ja) 空気調和機
EP4345386A1 (de) Wärmepumpenvorrichtung
EP4345387A1 (de) Wärmepumpenvorrichtung
EP4345385A1 (de) Wärmepumpenvorrichtung
EP4345384A1 (de) Wärmepumpenvorrichtung
EP3309475A1 (de) Kältekreislaufvorrichtung und kältekreislaufverfahren
EP4290144A1 (de) Wärmepumpenkreislaufvorrichtung
WO2023095418A1 (ja) 熱媒体循環装置
WO2019123631A1 (ja) 空気調和装置
EP4428457A1 (de) Wärmepumpensystem
EP4375580A1 (de) Wärmepumpenvorrichtung
JP2007093151A (ja) 空気調和機
EP4428456A1 (de) Ausseneinheit einer klimaanlage
JP2013050234A (ja) ヒートポンプ装置の室外ユニット
EP4279826A1 (de) Wärmepumpenkreislaufvorrichtung
EP4345388A1 (de) Wärmepumpenvorrichtung
WO2024127924A1 (ja) 空調ユニット
JP2001324174A (ja) 冷凍機ユニット
JP7460925B1 (ja) 空気調和装置、および構成ユニット

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

17P Request for examination filed

Effective date: 20240613

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR