WO2012172598A1 - Echangeur de chaleur pour climatiseur - Google Patents

Echangeur de chaleur pour climatiseur Download PDF

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Publication number
WO2012172598A1
WO2012172598A1 PCT/JP2011/003386 JP2011003386W WO2012172598A1 WO 2012172598 A1 WO2012172598 A1 WO 2012172598A1 JP 2011003386 W JP2011003386 W JP 2011003386W WO 2012172598 A1 WO2012172598 A1 WO 2012172598A1
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WO
WIPO (PCT)
Prior art keywords
pipe
collecting
heat exchanger
heat transfer
tube
Prior art date
Application number
PCT/JP2011/003386
Other languages
English (en)
Japanese (ja)
Inventor
富之 野間
横山　昭一
勝志 谷口
憲昭 山本
杉尾　孝
高橋　正敏
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to PCT/JP2011/003386 priority Critical patent/WO2012172598A1/fr
Priority to CN201180070429.2A priority patent/CN103502767B/zh
Publication of WO2012172598A1 publication Critical patent/WO2012172598A1/fr

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Classifications

    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the present invention relates to a heat exchanger for an air conditioner that can be executed by switching between a cooling operation and a heating operation, and more particularly, to a joining structure of refrigerant tubes provided in the heat exchanger.
  • Patent Document 1 a heat transfer tube made of aluminum or aluminum alloy (hereinafter referred to as “Al”) and an external pipe made of copper or copper alloy (hereinafter referred to as “Cu”) are joined to form a tube.
  • Al aluminum or aluminum alloy
  • Cu external pipe made of copper or copper alloy
  • brazing is not used for joining the Al pipe member and the Cu pipe member, and eutectic bonding, for example, can be employed.
  • eutectic bonding since it is difficult to perform eutectic bonding at the site where the air conditioner is installed, it is considered to use a bonded tube in which a short Al tube member and a Cu tube member are eutectic bonded in advance. It is done. That is, at the installation site of the air conditioner, this joining pipe is used, an Al heat transfer pipe is brazed to the end of the Al pipe member in the joining pipe, and the end of the Cu pipe member in the joining pipe is used. Brazes external piping made of Cu. Thereby, it is not necessary to perform eutectic bonding in the field, and the heat transfer tube and the external piping can be bonded by brazing.
  • an object of the present invention is to provide a heat exchanger for an air conditioner capable of improving the joining workability of an Al heat transfer tube and a Cu external pipe. .
  • An air conditioner heat exchanger is provided in an air conditioner that can be executed by switching between cooling operation and heating operation, and is a heat exchanger that exhausts heat to the outside during the cooling operation, and is configured to meander.
  • dissimilar bonded tube may be formed by eutectic bonding of the first tube member and the second tube member.
  • the collecting pipe may be connected to the first pipe member of the heterogeneous joint pipe at a position lower than each branching end.
  • each branch end of another collecting pipe made of aluminum or aluminum alloy is brazed to each other end of each of the plurality of heat transfer tubes, and the collecting end of the collecting pipe is made of copper or copper.
  • Another external pipe made of an alloy may be connected via another heterogeneous joint pipe.
  • FIG. 1 It is a schematic diagram which shows the structure of the heat exchanger of the air conditioner which concerns on this Embodiment. It is a schematic diagram which shows the piping form of the refrigerant
  • FIG. 1 is a schematic diagram showing the configuration of the heat exchanger of the air conditioner according to the present embodiment.
  • an air conditioner 1 includes a first heat exchanger 2 that exhausts heat to the outside during cooling operation (hereinafter, “outdoor heat exchanger 2”), and a second heat exchanger 3 that absorbs heat from outside air. (Hereinafter, “indoor heat exchanger 3”) and a refrigeration cycle 4 including these heat exchangers 2 and 3 are provided.
  • fans 7 and 8 driven by motors 5 and 6 are provided in the vicinity of the outdoor heat exchanger 2 and the indoor heat exchanger 3, respectively, and the airflow generated by the rotational drive of the fans 7 and 8 is It flows through the heat exchangers 2 and 3.
  • the expressions “upstream” and “downstream” are used, but these are based on the refrigerant flowing through the refrigeration cycle 4 when the air conditioner 1 is in cooling operation, and “upstream” of the flow. And “downstream”.
  • subjected along the refrigerating cycle 4 shown in FIG. 1 has shown the direction where a refrigerant
  • the refrigerant flow during the heating operation is opposite to the refrigerant flow during the cooling operation, as indicated by a broken line.
  • the indoor heat exchanger 3 is provided with a refrigerant pipe 4a constituting a part of the refrigeration cycle 4, and a refrigerant pipe 4b is extended from the downstream end of the refrigerant pipe 4a. It is connected to the connection part 10 (the downstream connection part during cooling operation).
  • Another refrigerant pipe 4c extends from the indoor unit liquid side connection portion 10, and its downstream end is connected to the upstream end of the refrigerant pipe 4d via the three-way valve 11, and further its downstream end is the first of the four-way valve 12.
  • a refrigerant pipe 4 e extends from a second port communicating with the first port during cooling operation, and a downstream end thereof is connected to the compressor 13.
  • the compressor 13 compresses the low-temperature and low-pressure refrigerant from the indoor heat exchanger 3 toward the outdoor heat exchanger 2 during the cooling operation to increase the temperature and pressure, and from the outdoor heat exchanger 2 to the indoor heat exchanger during the heating operation.
  • the low-temperature and low-pressure refrigerant going to 3 is compressed to increase the temperature and pressure.
  • a normal accumulator is connected to the front (upstream side) of the compressor 13 to perform gas-liquid separation of the refrigerant so that the liquid refrigerant does not return to the compressor 13.
  • another refrigerant pipe 4 f is extended from the compressor 13, and its downstream end is connected to the third port of the four-way valve 12.
  • a refrigerant pipe 4g is extended from the remaining fourth port communicating with the third port during cooling operation, and the downstream end of the refrigerant pipe 4h provided in the outdoor heat exchanger 2 is provided. Connected to the upstream end.
  • Another refrigerant pipe 4 i extends from the downstream end of the refrigerant pipe 4 h in the outdoor heat exchanger 2, and the downstream end is connected to the expansion valve 14.
  • the expansion valve 14 depressurizes the refrigerant from the outdoor heat exchanger 2 to the indoor heat exchanger 3 during the cooling operation, and depressurizes the refrigerant from the indoor heat exchanger 3 to the outdoor heat exchanger 2 during the heating operation. To do.
  • Another refrigerant pipe 4 j extends from the expansion valve 14, and its downstream end is connected to one port of the two-way valve 15.
  • a refrigerant pipe 4k extends from the other port of the two-way valve 15, and its downstream end is connected to the indoor unit connection part 16 (upstream connection part during cooling operation).
  • another refrigerant pipe 4m is extended from this indoor unit connection part 16, and the downstream end is connected to the upstream end of the refrigerant pipe 4a in the indoor heat exchanger 3 mentioned above.
  • the circulation path 4 is constituted by the refrigerant pipes 4a to 4k, 4m, and by this circulation path 4, the indoor heat exchanger 3, the four-way valve 12, the compressor 13, the outdoor heat exchanger 3, and the expansion valve. 14 etc. are connected. Further, among the above-described configurations, the components from the three-way valve 11 to the two-way valve 15 along the refrigerant flow (that is, the four-way valve 12, the compressor 13, the outdoor heat exchanger 2, and the expansion valve 14 are included. ) Constitutes an outdoor unit 1A of the air conditioner 1 according to the present embodiment. Moreover, the indoor unit 1B of the air conditioner 1 is constituted by components (including the indoor heat exchanger 3) from the indoor unit liquid side connection unit 16 to the indoor unit liquid side connection unit 10 along the refrigerant flow. Is configured.
  • FIG. 2 is a schematic diagram showing the piping configuration of the refrigerant pipe 4h provided in the outdoor heat exchanger 2 of FIG. 1, the refrigerant pipe 4g connected to the upstream side, and the refrigerant pipe 4i connected to the downstream side.
  • FIG. 3 is a schematic perspective view showing a specific configuration of the outdoor heat exchanger 2.
  • the piping configuration of the refrigerant tubes 4g to 4i in the vicinity of the outdoor heat exchanger 2 will be described in detail with reference to FIGS.
  • the refrigerant pipe 4h provided in the outdoor heat exchanger 2 is composed of a plurality of (four in the present embodiment) heat transfer tubes 21 to 24, and each of the heat transfer tubes 21 to 24 meanders.
  • the shape is such that More specifically, each of the heat transfer tubes 21 to 24 includes a plurality of straight tubes 25 extending in a straight line in a substantially horizontal direction, and the ends of the respective straight tubes 25 are U-shaped bend tubes 26. (See also FIG. 3) By connecting, it has a meandering shape.
  • the upstream ends of the heat transfer tubes 21 to 24 are arranged side by side, and are located from the bottom to the top in the order of the heat transfer tubes 21 to 24.
  • the heat transfer tube 21 whose upstream end is located at the lowest position extends from the upstream end to the downstream side so as to meander to the left and right while reaching the lower side.
  • the heat transfer tube 21 extends downward from the heat transfer tube 21. It is connected to the arranged downstream pipe 27.
  • the heat transfer tube 22 has an upstream end located near the upstream end of the heat transfer tube 21 and extends from the upstream end to the downstream side while meandering to the left and right. It extends downward and is connected to the downstream pipe 27.
  • the heat transfer tube 23 is provided so that its upstream end is located above and away from the upstream end of the heat transfer tube 22, and extends downwardly while meandering from side to side as it goes from the upstream end to the downstream side. The vicinity of the downstream end extends further downward and is connected to the downstream pipe 27.
  • the heat transfer tube 24 has an upstream end located near the upper end of the heat transfer tube 23, and extends from the upstream end to the downstream side so as to meander to the left and right and extend upward. The vicinity extends downward and is connected to the downstream pipe 27.
  • the heat transfer tubes 21 to 24 are arranged side by side, extend upward or downward while meandering, and are finally connected to the downstream pipe 27 near the downstream end. And the downstream end of the downstream piping 27 is connected to the upstream end of the refrigerant
  • a collecting pipe 30 is connected to the upstream ends of the heat transfer tubes 21 to 24.
  • the collecting pipe 30 has branch portions 31 to 34 corresponding to the heat transfer tubes 21 to 24, and a collecting portion 35 that collects them and connects them to one opening.
  • the branch portions 31 to 34 are extended in a substantially horizontal direction and are arranged so as to be vertically aligned with each other, and their downstream ends (branch end portions) are connected to the heat transfer tubes 21 to 24. That is, the branch portion 31 is connected to the heat transfer tube 21, the branch portion 32 is connected to the heat transfer tube 22, the branch portion 33 is connected to the heat transfer tube 23, and the branch portion 34 is connected to the heat transfer tube 24.
  • the collecting portion 35 includes a vertical portion 35a extending in the vertical direction and a horizontal portion 35b extending substantially in the horizontal direction from the upstream end of the vertical portion 35a, and branch portions 31 to 34 are connected to the vertical portion 35a. Yes.
  • the horizontal portion 35b is located at substantially the same height as the downstream pipe 27, and its upstream end (collecting end) is connected to the downstream end of the refrigerant pipe (external pipe) 4g via the joint pipe 41.
  • the refrigerant that has flowed downstream through the refrigerant pipe 4g during the cooling operation flows into the collecting pipe 30 and is distributed from the collecting portion 35 to the branch portions 31 to 34. Then, the air flows from the branch portions 31 to 34 to the heat transfer tubes 21 to 24 connected thereto, and finally merges again in the downstream pipe 27 and flows to the refrigerant pipe (external pipe) 4i. During this time, when the heat transfer tubes 21 to 24 are passed, the heat is taken away by the airflow passing through the heat exchanger 2 by the rotation of the fan 7 and cooled.
  • the refrigerant pipes 4g and 4i constituting the external pipe in the above configuration are made of copper or copper alloy
  • the collecting pipe 30 and the heat transfer pipes 21 to 24 are made of aluminum or aluminum alloy. It is.
  • copper or copper alloy pipes are shown in white, and aluminum or aluminum alloy pipes are shown in black.
  • intersects piping is shown in each joining location so that it may be easy to discriminate
  • the joints between members made of the same kind of metal are joined by brazing.
  • the joint pipe 40 is provided at a place where members made of different metals are joined, that is, a joint part between the refrigerant pipe 4g and the collecting pipe 30 and a joint part between the downstream pipe 27 and the refrigerant pipe 4i. , 41 are interposed.
  • the joining pipes 40 and 41 are eutectic joining of a first pipe member 42 which is a short pipe member made of aluminum or aluminum alloy and a second pipe member 43 which is a short pipe member made of copper or copper alloy. It has a straight tubular configuration.
  • the downstream pipe 27 connected to the downstream side of the heat transfer pipes 21 to 24 has a configuration including a branching section and a collecting section in the same manner as the collecting pipe 30 connected to the upstream side, and is also a form of the collecting pipe. . That is, in the present embodiment, the branch portions of the collecting pipe (the collecting pipe 30 and the downstream pipe 27) are connected to the upstream end and the downstream end of the heat transfer tubes 21 to 24 by brazing.
  • the joining pipes 40 and 41 are interposed at the joints between the collecting ends of the pipes and the refrigerant pipes 4g and 4i.
  • the downstream end of the downstream pipe 27 made of the same kind of metal is brazed to the first pipe member 42 made of aluminum or aluminum alloy of the joining pipe 40, and the second pipe member 43 made of copper or copper alloy is brazed.
  • the upstream end of the refrigerant pipe 4i made of the same metal as this is brazed and joined.
  • the upstream end of the collecting pipe 30 made of the same kind of metal is brazed to the aluminum or aluminum alloy first pipe member 42 of the joining pipe 41, and the second pipe member made of copper or copper alloy is brazed.
  • the downstream end of the refrigerant pipe 4g made of the same kind of metal as this is brazed to 43.
  • the outdoor heat exchanger 2 of the air conditioner 1 has the above-described piping configuration of the refrigerant tubes 4g to 4i.
  • the joining pipe 41 in which the dissimilar metal pipe members are eutectic joined is not directly joined to the end portions of the heat transfer tubes 21 to 24, but joined to one upstream end assembled by the collecting pipe 30. Yes.
  • the refrigerant pipe (external pipe) 4g and the heat transfer pipes 21 to 24 are joined via the joint pipe 41, the number of brazing points can be reduced. Therefore, workability in installing the outdoor heat exchanger 2 can be reduced. Can be improved.
  • the collecting portion 35 is connected to the refrigerant pipe 4g at a position below any of the branch portions 31 to 34. It has become. For this reason, moisture condensed at the branch portions 31 to 34 and the collecting portion 35 travels along the vertical portion 35a toward the copper or copper alloy refrigerant tube 4g. Accordingly, it is possible to prevent the heat transfer tubes 21 to 24 and the collecting tube 30 made of aluminum or aluminum alloy from being corroded by condensed moisture.
  • the outdoor heat exchanger 2 is not limited to the configuration including the four heat transfer tubes 21 to 24 as described above, and may include two or more heat transfer tubes.
  • the end portions of the plurality of heat transfer tubes may be gathered by the collecting pipe, and the collecting end portions of the collecting pipe and the external pipe may be joined via the joining pipe. Thereby, there can exist an effect similar to what was demonstrated in this Embodiment.
  • the present invention can be applied to a heat exchanger for an air conditioner that can be executed by switching between a cooling operation and a heating operation, in particular, a joining structure of refrigerant pipes provided in the heat exchanger.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention concerne un échangeur de chaleur pour climatiseur, permettant une aptitude améliorée à la mise en œuvre par rapport au raccordement de caloducs en Al et de canalisations externes en Cu. Un échangeur (2) de chaleur d'extérieur comporte : des caloducs multiples (21) à (24) en Al mis en forme de manière sinueuse ; un tuyau (30) d'assemblage doté de parties ramifiées multiples (31) à (34) et d'une partie (35) d'assemblage à laquelle sont jointes les extrémités desdites parties ramifiées (31) à (34) ; des canalisations externes (4h) en Cu ; et un tuyau (41) de raccord formé en raccordant un premier élément (42) de tuyau en Al et un deuxième élément (43) de tuyau en Cu. Une extrémité de chacun des caloducs (21) à (24) et des parties ramifiées (31) à (34) du tuyau (30) d'assemblage sont soudées ensemble, la partie (35) d'assemblage du tuyau (30) d'assemblage est soudée au premier élément (42) de tuyau du tuyau (41) de raccord, et la partie d'extrémité des canalisations externes (4h) est soudée au deuxième élément (43) de tuyau du tuyau (41) de raccord.
PCT/JP2011/003386 2011-06-14 2011-06-14 Echangeur de chaleur pour climatiseur WO2012172598A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2011/003386 WO2012172598A1 (fr) 2011-06-14 2011-06-14 Echangeur de chaleur pour climatiseur
CN201180070429.2A CN103502767B (zh) 2011-06-14 2011-06-14 空气调节机的热交换器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/003386 WO2012172598A1 (fr) 2011-06-14 2011-06-14 Echangeur de chaleur pour climatiseur

Publications (1)

Publication Number Publication Date
WO2012172598A1 true WO2012172598A1 (fr) 2012-12-20

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CN (1) CN103502767B (fr)
WO (1) WO2012172598A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130345A (ja) * 2011-12-22 2013-07-04 Daikin Industries Ltd 空気調和装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193458A (fr) * 1975-02-13 1976-08-16
JPS55140066A (en) * 1979-04-18 1980-11-01 Hitachi Ltd Evaporator for refrigerating machine
JPH11183075A (ja) * 1997-12-17 1999-07-06 Showa Alum Corp 熱交換器
JP2009287837A (ja) * 2008-05-29 2009-12-10 Hitachi Appliances Inc 冷凍サイクル装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193458A (fr) * 1975-02-13 1976-08-16
JPS55140066A (en) * 1979-04-18 1980-11-01 Hitachi Ltd Evaporator for refrigerating machine
JPH11183075A (ja) * 1997-12-17 1999-07-06 Showa Alum Corp 熱交換器
JP2009287837A (ja) * 2008-05-29 2009-12-10 Hitachi Appliances Inc 冷凍サイクル装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130345A (ja) * 2011-12-22 2013-07-04 Daikin Industries Ltd 空気調和装置

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CN103502767B (zh) 2016-03-02
CN103502767A (zh) 2014-01-08

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