US20170370659A1 - Air-conditioning apparatus and method of manufacturing air-conditioning apparatus - Google Patents

Air-conditioning apparatus and method of manufacturing air-conditioning apparatus Download PDF

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Publication number
US20170370659A1
US20170370659A1 US15/543,802 US201615543802A US2017370659A1 US 20170370659 A1 US20170370659 A1 US 20170370659A1 US 201615543802 A US201615543802 A US 201615543802A US 2017370659 A1 US2017370659 A1 US 2017370659A1
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United States
Prior art keywords
heat exchanger
tubes
air
side plate
conditioning apparatus
Prior art date
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Abandoned
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US15/543,802
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English (en)
Inventor
Wahei Shingu
Takaaki YASUDA
Kiyoshi Yamada
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
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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
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHINGU, Wahei, YAMADA, KIYOSHI, YASUDA, Takaaki
Publication of US20170370659A1 publication Critical patent/US20170370659A1/en
Abandoned legal-status Critical Current

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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • 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
    • 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
    • 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
    • F28D1/053—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 straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05325—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
    • 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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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

Definitions

  • the present invention relates to an air-conditioning apparatus including a heat exchanger provided with side plates and a method of manufacturing the air-conditioning apparatus.
  • a heat exchanger employed in an air-conditioning apparatus is configured with, for example, a radiator fin, a tube and a side plate.
  • the side plate is provided at end portions of the tubes, and the side plate has multiple holes formed thereon through which the multiple tubes are inserted.
  • connection members that connect the multiple tubes are provided on the side plate.
  • the connection member for example, a U-bent tube, a three-way bent tube, a bulge three-way tube and other tubes can be provided.
  • the tube is a hairpin tube, the tube and the connection member are integrally formed.
  • connection member provided to such a heat exchanger has various kinds of connection patterns (path patterns) that are complex. Therefore, a drawing on which a path pattern is provided is separately prepared. Then, a worker who manufactures the heat exchanger attaches parts to assemble the heat exchanger while alternately comparing the heat exchanger and the drawing providing the path pattern. When the number of parts related to the path pattern is large, it exceeds 100 per a single heat exchanger. Moreover, the parts include several types in some cases. Consequently, there is a possibility that the working hours are increased and a failure caused by an attachment mistake occurs.
  • the parts related to the path pattern are mainly four types: the hairpin tube; the U-bent tube; the three-way bent tube; and the bulge three-way tube.
  • these connection members there is no limitation to functions, an outer shape, attachment number and place, and so forth. Therefore, there is a possibility of increase in working hours due to inadequate confirmation of attachment places and inadequate confirmation of the connection member itself, and occurrence of failure caused by attachment mistake due to inadequate confirmation of attachment places and inadequate confirmation of the connection member itself.
  • connection members when these connection members are attached by brazing, it is difficult to detach the members that have been attached once. Therefore, when an attachment mistake occurs, the whole heat exchanger including the radiator fins and the side plates has to be discarded.
  • Patent Literature 1 there is disclosed a method of manufacturing a heat exchanger including multiple bent tubes.
  • a heat exchanger is manufactured by attaching multiple bent tubes in advance to a support material having holes for inserting the bent tubes formed thereon, and fitting the support material to a tube inserted into a plate fin.
  • Patent Literature 1 employs the support material to eliminate the confirmation of attachment places of the bent tubes, thereby, intends to improve workability in assembly of the heat exchanger.
  • Patent Literature 1 since the heat exchanger disclosed in Patent Literature 1 requires the support material, manufacturing costs are increased. Moreover, in Patent Literature 1, attachment of bent tubes only is disclosed, and attachment workability when there are multiple connection members is not at all considered.
  • the present invention has been made in view of the above circumstances, and provides an air-conditioning apparatus and a method of manufacturing the air-conditioning apparatus that reduce manufacturing costs and improve attachment workability even when there are multiple connection members.
  • An air-conditioning apparatus of an embodiment of the present invention includes: a compressor, a first heat exchanger, an expansion unit and a second heat exchanger that are connected, by a pipe, in a refrigerant circuit through which refrigerant flows, wherein the first heat exchanger includes: a radiator fin, a plurality of tubes extending through the radiator fin and through which the refrigerant flows, and a side plate provided at end portions of the tubes, and having a plurality of holes formed thereon through which the tubes are extended, wherein, on the side plate, between the holes corresponding to the tubes to be connected, a marking corresponding to a type of a connection member that connects the tubes is provided.
  • markings corresponding to the types of the connection members that connect the multiple tubes is provided on the side plate. Therefore, positioning is performed with ease without any support material. Consequently, the manufacturing costs is reduced. Moreover, the markings are different by respective types of the connection members, and thereby the connection member to be attached is recognized with ease. Therefore, the attachment workability is improved even when there are multiple connection members.
  • FIG. 1 is a circuit diagram showing an air-conditioning apparatus 1 according to Embodiment 1 of the present invention.
  • FIG. 2A is a side view showing a first heat exchanger 4 in Embodiment 1 of the present invention.
  • FIG. 2B is a front view showing the first heat exchanger 4 in Embodiment 1 of the present invention.
  • FIG. 3 is a front view showing a side plate 13 of the first heat exchanger 4 in Embodiment 1 of the present invention.
  • FIG. 4 is a diagram showing types of markings 15 in Embodiment 1 of the present invention.
  • FIG. 5 is a flowchart showing a method of manufacturing the air-conditioning apparatus 1 according to Embodiment 1 of the present invention.
  • FIG. 6 is a front view showing the side plate 13 of the first heat exchanger 4 in Embodiment 1 of the present invention.
  • FIG. 1 is a circuit diagram showing an air-conditioning apparatus 1 according to Embodiment 1 of the present invention.
  • the air-conditioning apparatus 1 will be described based on FIG. 1 .
  • the air-conditioning apparatus 1 includes a refrigerant circuit 2 .
  • a compressor 3 In the refrigerant circuit 2 , a compressor 3 , a first heat exchanger 4 , an expansion unit 5 and a second heat exchanger 6 are connected by a pipe 7 to allow a flow of refrigerant.
  • the compressor 3 compresses the refrigerant.
  • the first heat exchanger 4 is provided, for example, outdoor, and exchanges heat between outdoor air and the refrigerant.
  • the first heat exchanger 4 is provided with an inflow header 4 a on an inflow side of the refrigerant, and the inflow header 4 a distributes the refrigerant discharged from the compressor 3 to each of tubes 12 of the first heat exchanger 4 .
  • the first heat exchanger 4 is provided with a first outflow header 4 b on an outflow side of the refrigerant, and the first outflow header 4 b collects the refrigerant flowing out of each tube 12 to allow the refrigerant to flow out to the expansion unit 5 .
  • the expansion unit 5 expands the refrigerant and reduces the pressure of the refrigerant.
  • the second heat exchanger 6 is provided, for example, indoor, and exchanges heat between indoor air and the refrigerant.
  • the second heat exchanger 6 is provided with a distributor 6 a on an inflow side of the refrigerant, and the distributor 6 a distributes the refrigerant flowing out of the expansion unit 5 to each of tubes 12 of the second heat exchanger 6 .
  • the second heat exchanger 6 is provided with a second outflow header 6 b on an outflow side of the refrigerant, and the second outflow header 6 b collects the refrigerant flowing out of each tube 12 to allow the refrigerant to flow out to the compressor 3 .
  • FIG. 2A is a side view showing the first heat exchanger 4 in Embodiment 1 of the present invention
  • FIG. 2B is a front view showing the first heat exchanger 4 in Embodiment 1 of the present invention.
  • the first heat exchanger 4 will be described.
  • the first heat exchanger 4 includes a radiator fin 11 , multiple tubes 12 and side plates 13 .
  • multiple radiator fins 11 are provided and the multiple radiator fins 11 are disposed at intervals mutually.
  • the outdoor air flows through the multiple radiator fins 11 .
  • the multiple tubes 12 are inserted through the radiator fins 11 and allows the refrigerant to flow therethrough.
  • the side plate 13 is provided at end portions of the tubes 12 , and has multiple holes 13 a formed thereon through which the multiple tubes 12 are inserted.
  • the side plates 13 are provided, for example, at both end portions of the tubes 12 to sandwich the radiator fins 11 .
  • An upper end portion and a lower end portion of the side plate 13 are bent 90 degrees in the direction opposite to the radiator fins 11 .
  • FIG. 3 is a front view showing the side plate 13 of the first heat exchanger 4 in Embodiment 1 of the present invention. Next, the side plate 13 of the first heat exchanger 4 will be described. As shown in FIG. 3 , on the side plate 13 , between the holes 13 a corresponding to the multiple tubes 12 to be connected, markings 15 corresponding to the types of the connection members 14 that connect the multiple tubes 12 are provided.
  • connection member 14 for example, a U-bent tube 14 A in a U shape, a three-way bent tube 14 b in a T shape, a bulge three-way tube 14 c in a non-T shape, and other tubes can be provided.
  • the tube 12 is a hairpin tube, and the tube 12 and the connection member 14 are integrally formed.
  • FIG. 4 is a diagram showing types of the markings 15 in Embodiment 1 of the present invention.
  • the marking 15 in the case of the hairpin tube, the marking 15 is a single straight line.
  • the marking 15 In the case of the U-bent tube 14 A, the marking 15 is two parallel straight lines.
  • the marking 15 In the case of the three-way bent tube 14 b , the marking 15 is two straight lines that are orthogonally crossed.
  • the marking 15 is two straight lines that are crossed non-orthogonally, and an attachment direction is also indicated. Note that the sizes of the markings 15 are appropriately determined.
  • the markings 15 are provided by a marking jig, and the marking jig is made of metal. On the marking jig, a shape corresponding to the type of the marking 15 is formed. Note that the marking 15 may be provided by a writing material, or may be provided by a sticker. Further, the marking 15 may be provided to cover the multiple holes 13 a.
  • FIG. 5 is a flowchart showing a method of manufacturing the air-conditioning apparatus 1 according to Embodiment 1 of the present invention.
  • the method of manufacturing the air-conditioning apparatus 1 will be described.
  • the multiple holes 13 a are formed on the side plate 13 .
  • the multiple holes 13 a are formed by, for example, burring processing (step ST 1 ).
  • the markings 15 corresponding to the type of the connection member 14 that connects the multiple tubes 12 are provided between the holes 13 a corresponding to the multiple tubes 12 to be connected. Specifically, between the multiple holes 13 a , the markings 15 are inscribed by a marking jig (step ST 2 ). Then, the upper end portion and the lower end portion of the metal plate are bent 90 degrees. Accordingly, the side plate 13 of the first heat exchanger 4 is manufactured (step ST 3 ). Thereafter, the first heat exchanger 4 is manufactured by employing the side plates 13 , and the air-conditioning apparatus 1 is manufactured by incorporating the first heat exchanger 4 thereinto.
  • the compressor 3 sucks the refrigerant and compresses the refrigerant to discharge the refrigerant in a gas state of high temperature and high pressure.
  • the discharged refrigerant flows into the first heat exchanger 4 , and the first heat exchanger 4 condenses the refrigerant by heat exchange with the outdoor air.
  • the condensed refrigerant flows into the expansion unit 5 , and the expansion unit 5 expands the condensed refrigerant and reduces the pressure thereof.
  • the refrigerant reduced in pressure flows into the second heat exchanger 6 , and the second heat exchanger 6 evaporates the refrigerant by heat exchange with the indoor air.
  • the indoor air is cooled, and thereby cooling of the indoor space is performed.
  • the refrigerant evaporated and brought into a gas state of high temperature and low pressure is sucked by the compressor 3 .
  • the air-conditioning apparatus 1 according to Embodiment 1 is used in performing the cooling operation in this manner; however, the air-conditioning apparatus 1 may be configured to make it possible to perform, not only the cooling operation, but also the heating operation by providing a flow switching unit in the refrigerant circuit 2 .
  • FIG. 6 is a front view showing the side plate 13 of the first heat exchanger 4 in Embodiment 1 of the present invention.
  • solid-line arrows indicate attachment positions of the connection members 14 that are attached to the side plate 13 on one end portion of the first heat exchanger 4 and flow directions of the refrigerant.
  • broken lines indicate attachment positions of the connection members 14 that are attached to the side plate 13 on the other end portion of the first heat exchanger 4 .
  • each connection member 14 is attached in accordance with the types of the markings 15 .
  • the U-bent tube 14 A is attached at the portion where the marking 15 of two parallel straight lines is provided.
  • the three-way bent tube 14 b is attached.
  • the hairpin tube (the tube 12 ) is attached. Then, the refrigerant flowing in from the inflow header 4 a flows through the hairpin tube (the tube 12 ), the U-bent tube 14 A, the hairpin tube (the tube 12 ), and the three-way bent tube 14 b in this order.
  • One of the refrigerant branched at the three-way bent tube 14 b flows through the hairpin tube (the tube 12 ), the U-bent tube 14 A, the hairpin tube (the tube 12 ), the U-bent tube 14 A and the hairpin tube (the tube 12 ) in this order, and flows out to the first outflow header 4 b .
  • the other one of the refrigerant branched at the three-way bent tube 14 b flows through the hairpin tube (the tube 12 ), the U-bent tube 14 A, the hairpin tube (the tube 12 ), the U-bent tube 14 A and the hairpin tube (the tube 12 ) in this order, and flows out to the first outflow header 4 b.
  • markings 15 corresponding to the types of the connection members 14 that connect the multiple tubes 12 are provided. Therefore, positioning is performed with ease without any support material. Consequently, the manufacturing costs are reduced. Further, the markings 15 are different by respective types of the connection members 14 , and thereby the connection members 14 to be attached are recognized with ease. Therefore, the attachment workability is improved even when there are multiple connection members 14 .
  • this configuration reduces time for attaching the connection members 14 to the first heat exchanger 4 . Moreover, since the attachment workability is improved, quality of the first heat exchanger 4 is improved. Further, even when the connection member 14 is attached by brazing, since occurrence of attachment mistake is suppressed, the risk of discarding the whole first heat exchanger 4 including the radiator fins 11 and the side plates 13 is reduced. This contributes to energy saving.
  • the markings 15 are provided on the side plates 13 of the first heat exchanger 4 , however, the markings 15 may be provided on the side plates 13 of the second heat exchanger 6 .
  • the refrigerant flowing in from the expansion unit 5 flows through the hairpin tube, the U-bent tube 14 A, the three-way bent tube 14 b and others, to flow out to the second outflow header 6 b .
  • the markings 15 are provided on the side plates 13 of the first heat exchanger 4 , however, the markings 15 may be provided on the side plates 13 of the second heat exchanger 6 .
  • the tube 12 is a hairpin tube, and the tube 12 and the connection member 14 are integrally formed. This configuration improves attachment workability of the hairpin tube.
  • connection member 14 Even further, as the connection member 14 , the U-bent tube 14 A in the U shape is used. This configuration improves attachment workability of the U-bent tube 14 A.
  • connection member 14 the three-way bent tube 14 b in the T shape is used. This configuration improves attachment workability of the three-way bent tube 14 b.
  • connection member 14 the bulge three-way tube 14 c in a non-T shape is used, and the marking 15 indicating the attachment direction of the connection member 14 is provided on the side plate 13 .
  • This configuration improves attachment workability of the bulge three-way tube 14 c , and the attachment direction thereof is recognized with ease.
  • the markings 15 are provided by the marking jigs. This improves workability in providing the markings 15 .
  • the markings 15 are provided by the writing material. This improves workability in providing the markings 15 .
  • the markings 15 are provided by the stickers. This improves workability in providing the markings 15 .
  • the marking 15 is provided to cover the multiple holes 13 a . This improves workability in providing the marking 15 .
  • the method includes: a step of forming multiple holes 13 a , through which the multiple tubes 12 are inserted, on the side plate 13 ; and a step of providing, on the side plate 13 , between the holes 13 a corresponding to the multiple tubes 12 to be connected, a marking 15 corresponding to a type of a connection member 14 connecting the multiple tubes 12 .
  • connection members 14 are different by respective types of the connection members 14 , and thereby the connection members 14 to be attached are recognized with ease. Therefore, the attachment workability is improved even when there are multiple connection members 14 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Other Air-Conditioning Systems (AREA)
US15/543,802 2015-04-27 2016-03-23 Air-conditioning apparatus and method of manufacturing air-conditioning apparatus Abandoned US20170370659A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015-090360 2015-04-27
JP2015090360A JP5868537B1 (ja) 2015-04-27 2015-04-27 空気調和装置及び空気調和装置の製造方法
PCT/JP2016/059083 WO2016174965A1 (ja) 2015-04-27 2016-03-23 空気調和装置及び空気調和装置の製造方法

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US20170370659A1 true US20170370659A1 (en) 2017-12-28

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US (1) US20170370659A1 (ja)
EP (1) EP3290852B1 (ja)
JP (1) JP5868537B1 (ja)
CN (1) CN107532869A (ja)
WO (1) WO2016174965A1 (ja)

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Publication number Priority date Publication date Assignee Title
CN107490316A (zh) * 2017-09-04 2017-12-19 广东美的制冷设备有限公司 用于换热器的边板、换热器组件及空调器

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US5219023A (en) * 1992-03-09 1993-06-15 General Motors Corporation Three row condenser with high efficiency flow path
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EP3290852B1 (en) 2020-06-17
JP2016205752A (ja) 2016-12-08
WO2016174965A1 (ja) 2016-11-03
CN107532869A (zh) 2018-01-02
JP5868537B1 (ja) 2016-02-24
EP3290852A1 (en) 2018-03-07

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