WO2013098872A1 - Unité extérieure et climatiseur - Google Patents

Unité extérieure et climatiseur Download PDF

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Publication number
WO2013098872A1
WO2013098872A1 PCT/JP2011/007260 JP2011007260W WO2013098872A1 WO 2013098872 A1 WO2013098872 A1 WO 2013098872A1 JP 2011007260 W JP2011007260 W JP 2011007260W WO 2013098872 A1 WO2013098872 A1 WO 2013098872A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
fin
outdoor unit
fins
housing
Prior art date
Application number
PCT/JP2011/007260
Other languages
English (en)
Japanese (ja)
Inventor
三宅　展明
明生 村田
宏樹 岡澤
外囿　圭介
渉 鈴木
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201180074202.5A priority Critical patent/CN103890494A/zh
Priority to EP11879058.3A priority patent/EP2799786A4/fr
Priority to PCT/JP2011/007260 priority patent/WO2013098872A1/fr
Priority to US14/343,171 priority patent/US20140196874A1/en
Publication of WO2013098872A1 publication Critical patent/WO2013098872A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • F24F1/16—Arrangement or mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • 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
    • 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
    • F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
    • 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
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • 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
    • 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
    • F28D2001/0253—Particular components
    • F28D2001/026—Cores
    • F28D2001/0273—Cores having special shape, e.g. curved, annular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49384—Internally finned

Definitions

  • the present invention relates to an outdoor unit and an air conditioner equipped with the outdoor unit.
  • a heat exchanger assembly mounted on such an outdoor unit generally has a two-row configuration of two heat exchangers.
  • this heat exchanger a plurality of strip-shaped aluminum fins with circular holes are stacked and laminated, and a plurality of copper or aluminum transmissions having a circular cross section in a direction substantially perpendicular to the fins.
  • the inner diameter of the heat transfer pipe is expanded using a hydraulic or mechanical pipe expander to ensure the adhesion between the fins and the heat transfer pipe necessary for the heat transfer performance of the heat exchanger
  • Many fin tube structures have been conventionally employed (for example, see Patent Document 2).
  • the circular holes formed in the fins are subjected to burring to form a cylindrical collar at the edges in order to increase the contact area with the heat transfer tube, and the fin plate between the circular holes has ventilation
  • a slit is provided to improve the heat exchange performance with.
  • a U-shaped forming part called a hairpin is formed by sequentially laminating a desired number of fins cut into a desired strip length after pressing, and then laminating a desired number of pieces. It is common to insert a plurality of long heat transfer tubes with a fin into a fin and expand the tube. As described above, since the lamination of the fins and the insertion of the heat transfer tubes are performed based on the collar, as a result, the fins are laminated and fixed at equal intervals of the collar height (for example, see Patent Document 4). ).
  • a plurality of heat transfer tubes are U-bends, distributors, etc., which are circular cross-section heat transfer tubes for pipe connection bent at the end in a U shape.
  • a heat exchanger having a plate fin tube structure configured by bending a laminated fin through which a heat transfer tube is inserted into an L shape over a plurality of times (for example, twice) is also disclosed (for example, patents).
  • Reference 5 A heat exchanger having such a plate fin tube structure has a substantially U-shape in which laminated fins are bent over a plurality of times, and finally the fins are laminated and the internal heat transfer tubes are arranged in the contour direction.
  • Patent Document 5 See, for example, Patent Document 5). It should be noted that the heat exchangers formed by bending the laminated fins and having a substantially U-shape with three outer surfaces are in a state in which the fins are laminated at equal intervals of the fin collar height without being molded. ing.
  • JP 2008-138951 A (FIGS. 1 to 3 etc.) Japanese Examined Patent Publication No. 58-13249 (FIGS. 1 to 3 etc.) Japanese Examined Patent Publication No. 58-9358 (Figs. 1-5) Japanese Patent Publication No. 3-80571 (Fig. 1, Fig. 2 etc.) Patent No. 4417620 (FIG. 20 etc.) Japanese Patent Laid-Open No. 63-233296 (FIG. 1, FIG. 2, etc.) Japanese Patent Laid-Open No. 2004-245331 (FIG. 1, FIG. 2, etc.) JP 2008-8541 A (FIG. 3 etc.)
  • the pitch between the fins is a burring process.
  • the color height is fixed. Therefore, in the conventional air conditioner, it is difficult to change the pitch between the fins according to the internal structure of the outdoor unit in order to improve the performance.
  • the opening cross-sectional area into which air flows in the adjacent surfaces of the substantially U shape heat exchanger is The four surfaces (2 surfaces x 2 heat exchangers other than adjacent surfaces) are smaller than the sectional area of the opening through which air flows, and the wind speed is small.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioner that can easily change the lamination pitch of fins.
  • An outdoor unit includes a housing and at least two plate fin tube heat exchangers arranged in parallel in the housing and bent in an inner direction of the housing and having faces facing each other in the housing.
  • An assembly and a fan that is disposed above the housing and exhausts air taken in from a side surface of the housing from an upper portion of the housing, and the heat exchanger assembly has no fin collar on the fin
  • a notch or a notch having a fin collar shorter than the stacking interval of the fins at least a part of the stacking interval of the fins constituting the facing surface other than the facing surface It is made larger than the lamination
  • An air conditioner according to the present invention includes the outdoor unit described above and an indoor unit connected to the outdoor unit.
  • fins can be distributed more effectively than in the past, heat exchange efficiency can be improved from the viewpoint of price-performance ratio, and energy saving and low cost can be realized.
  • the heat exchange efficiency can be improved, and energy saving and low cost can be realized from the viewpoint of price-performance ratio.
  • FIG. 1 It is a schematic perspective view which shows roughly the structure of the heat exchanger assembly mounted in the outdoor unit which concerns on Embodiment 2 of this invention. It is a circuit diagram which shows typically the basic composition of the air conditioner concerning Embodiment 3 of this invention. It is the schematic for demonstrating a part of manufacturing method of the heat exchanger assembly which concerns on Embodiment 4 of this invention. It is the schematic for demonstrating a part of manufacturing method of the heat exchanger assembly which concerns on Embodiment 4 of this invention.
  • FIG. FIG. 1 is a schematic external view showing an example of an external configuration of an outdoor unit 101 according to Embodiment 1 of the present invention. Based on FIG. 1, the outline
  • the outdoor unit 101 according to Embodiment 1 constitutes a part of an air conditioner that is used for business use, for example, in a building or factory.
  • the outdoor unit 101 has an appearance as shown in FIG. 1 and is configured to exhaust air from two upper portions.
  • the outdoor unit 101 constitutes an air conditioner by being connected to an indoor unit (not shown). Then, the refrigeration cycle is formed by pipe connection of the outdoor unit 101 and element devices (compressor, heat source side heat exchanger, expansion device, use side heat exchanger) mounted in the indoor unit, and the air conditioning target space ( For example, air conditioning of an indoor space in which an indoor unit is installed is executed.
  • the air conditioner will be described in Embodiment 3.
  • the outdoor unit 101 includes at least a housing 102, a heat exchanger assembly 103, a bell mouth 104, a cover 105, a compressor (not shown), and piping parts (not shown).
  • two fans for example, a propeller fan or the like, the fan 55 shown in Embodiment 3 are installed on the top of the housing 102.
  • the air passing through the vessel assembly 103 is exhausted from the upper part of the housing 102.
  • the bell mouth 104 is simplified and shown in a cylindrical shape.
  • the housing 102 is formed in a substantially rectangular parallelepiped shape and constitutes the outer shell of the outdoor unit 101, and a part of the component devices constituting the refrigeration cycle is accommodated therein.
  • the heat exchanger assembly 103 performs heat exchange between the air taken in by the fan and the refrigerant. Two heat exchanger assemblies 103 are provided corresponding to the number of fans installed.
  • the bell mouth 104 guides air formed by a fan installed on the top of the housing 102. Two bell mouths 104 are provided corresponding to the number of fans installed.
  • the cover 105 is provided on one of the four side surfaces of the housing 102 (for example, a surface on which a control board is installed and a worker performs maintenance work such as maintenance, a surface on the front side of the paper), and one surface of the housing 102. It covers. The remaining three surfaces of the casing 102 not covered with the cover 105 are exposed to the surroundings in most of the surfaces except for thin columnar or lattice members so that outside air can be sucked into the heat exchanger assembly 103. It is supposed to be. Note that FIG. 1 shows an example in which one cover 105 covers one surface of the housing 102, but the number of covers 105 is not particularly limited, and a plurality of covers 105 can cover the housing. One surface of 102 may be covered.
  • FIG. 2 is a schematic perspective view for explaining the internal configuration of the outdoor unit 101. Based on FIG. 2, the outline
  • FIG. 2 schematically shows the internal structure of the outdoor unit 101 in which members other than the bottom plate 119 of the housing 102 and the component devices installed in the housing 102 are removed in order to show the air flow of the outdoor unit 101. It is shown schematically. Therefore, in FIG. 2, the bell mouth 104 appears to be separated from the housing 102.
  • the white arrow shown in FIG. 2 represents the flow of the air formed by the effect
  • the heat exchanger assembly 103 that is bent into a substantially U shape so as to surround each of the two bell mouths 104 when the outdoor unit 101 is viewed from above is installed.
  • the heat exchanger assembly 103 has a two-row configuration.
  • the two heat exchanger assemblies 103 are arranged symmetrically with respect to a line connecting the centers of the casings 102 in the longitudinal direction.
  • the heat exchanger disposed outside the outdoor unit 101 in the two rows is referred to as the outer heat exchanger 106
  • the heat exchanger disposed inside is referred to as the inner heat exchanger 107.
  • the adjacent surfaces of the two outer heat exchangers 106 are referred to as an outer adjacent surface 108
  • the adjacent surfaces of the two inner heat exchangers 107 are referred to as an inner adjacent surface 109, respectively.
  • the outer heat exchanger 106 and the inner heat exchanger 107 have, for example, a heat transfer tube having a flat cross-sectional shape (hereinafter referred to as a flat tube) having notch shapes with the same number and the same interval as the flat tubes in the plate long axis direction. Insertion holes are formed and inserted into plate-like fins arranged at a predetermined interval.
  • the outer heat exchanger 106 and the inner heat exchanger 107 are, for example, circular heat transfer tubes having a circular cross section (hereinafter referred to as circular tubes) having the same number and the same interval as the circular tubes in the longitudinal direction of the plate surface. The insertion holes may be formed and inserted into plate-like fins arranged at a predetermined interval.
  • the configurations of the outer heat exchanger 106 and the inner heat exchanger 107 will be described in detail with reference to FIG.
  • Element devices such as a compressor installed in the housing 102 are provided on the bottom plate 119 of the housing 102 so as to be surrounded on three sides by the heat exchanger assembly 103.
  • the two heat exchanger assemblies 103 are composed of a pipe group that protrudes to an end face 125 of the heat exchanger assembly 103 (a surface facing the cover 105 of the outer adjacent surface 108 and the inner adjacent surface 109), and an occupied space (housing 102). In consideration of the internal occupation section of the heat exchanger assembly 103), they are arranged symmetrically in parallel with a gap 110 of a predetermined distance so as not to form an extra space in the housing 102.
  • the two heat exchanger assemblies 103 are arranged so that is positioned on three exposed surfaces of the housing 102.
  • the surface facing the adjacent surface is referred to as a surface 111
  • the cover 105 and the surface facing the surface are illustrated as a surface 112.
  • the surface facing the adjacent surface is referred to as a surface 114
  • the surface facing the cover 105 is referred to as a surface 113.
  • the heat exchanger assembly 103 is exposed to the periphery so that the outside air can be sucked into the heat exchanger assembly 103, the opposite surface of the housing 102 to the cover 105 is exposed to the outer adjacent surface 108 and the inner adjacent surface. Air is also taken in from the surface 109.
  • the air flow in the outdoor unit 101 formed in this way is approximately as shown in FIG. That is, air that has flowed into the housing 102 from the three surfaces of the housing 102 by the action of the fan passes through the heat exchanger assembly 103 and the bell mouth 104 and is then exhausted from the upper portion of the housing 102.
  • the surface 111 to the surface 114 of the heat exchanger assembly 103 have a larger opening cross-sectional area facing the outside of the housing 102 than the adjacent surface of the heat exchanger assembly 103, so that the ventilation resistance is small and the wind speed is higher. Air passes through.
  • air is also taken in from the outer adjacent surface 108 and the inner adjacent surface 109, since the opening cross-sectional area facing the outside of the housing 102 is small, the ventilation resistance is large and the air passes at a lower wind speed.
  • FIG. 3 is a schematic perspective view schematically showing the structure of the heat exchanger assembly 103.
  • FIG. 4 is a schematic perspective view schematically showing a structure of a conventional heat exchanger assembly (hereinafter referred to as a heat exchanger assembly 103 ′). Based on FIGS. 3 and 4, the structure of the heat exchanger assembly 103 will be described in comparison with the structure of the heat exchanger assembly 103 '. In addition, also about each member which comprises heat exchanger assembly 103 ', "'" is attached
  • the heat exchanger assembly 103 is bent into a substantially U shape as described above, and finally the fin stack and the internal heat transfer tube are arranged in the direction of the contour line 117. Further, the heat exchanger assembly 103 has a two-row configuration of an outer heat exchanger 106 and an inner heat exchanger 107. The two heat exchanger assemblies 103 are arranged so that the outer adjacent surfaces 108 of the two outer heat exchangers 106 and the inner adjacent surfaces 109 of the two inner heat exchangers 107 are opposed to each other.
  • the outer heat exchanger 106 and the inner heat exchanger 107 constituting the heat exchanger assembly 103 have the same number of heat transfer tubes (flat tubes or circular tubes) as the heat transfer tubes in the longitudinal direction of the plate surface and the same interval between the heat transfer tubes. Insertion holes (including notches) with intervals are formed and inserted into plate-like fins arranged at predetermined intervals. After pressing, the fins are cut to the desired strip length, and are sequentially laminated in the collar part, and then a plurality of long heat transfer tubes each having a U-shaped part 115 called a hairpin are inserted.
  • the outer heat exchanger 106 and the inner heat exchanger 107 constituting the heat exchanger assembly 103 have the same number of heat transfer tubes (flat tubes or circular tubes) as the heat transfer tubes in the longitudinal direction of the plate surface and the same interval between the heat transfer tubes. Insertion holes (including notches) with intervals are formed and inserted into plate-like fins arranged at predetermined intervals. After pressing, the fins are cut to the desired
  • the fins constituting the outer heat exchanger 106 and the inner heat exchanger 107 are stacked and fixed at a predetermined interval. That is, as shown in FIG. 3, the outer heat exchanger 106 and the inner heat exchanger 107 are configured by changing some fin intervals. Thereafter, a plurality of heat transfer tubes (flat tubes or circular tubes) are brazed to components such as a U-bend 116 for pipe connection and a distributor that are bent into a U shape at the end of the heat exchanger. Thereby, the continuous flow path of the refrigerant
  • the laminated fins through which the heat transfer tubes are inserted are bent into an L shape over a plurality of times (for example, twice), and finally, the lamination of the fins and the internal heat transfer tubes are arranged in the direction of the contour line 117.
  • a substantially U-shaped outer heat exchanger 106 and inner heat exchanger 107 are formed.
  • the heat exchanger assembly 103 ′ is also bent into a substantially U shape. Further, the heat exchanger assembly 103 'has a two-row configuration of an outer heat exchanger 106' and an inner heat exchanger 107 '. The two heat exchanger assemblies 103 ′ are arranged so that the outer adjacent surfaces 108 ′ of the two outer heat exchangers 106 ′ and the inner adjacent surfaces 109 ′ of the two inner heat exchangers 107 ′ face each other. Has been. Thus, in appearance, the heat exchanger assembly 103 and the heat exchanger assembly 103 'are the same.
  • the outer heat exchanger 106 ′ and the inner heat exchanger 107 ′ constituting the heat exchanger assembly 103 ′ generally have the same number of circular tubes as the circular tubes in the plate major axis direction, and the interval between the circular tubes. Are inserted into plate-like fins arranged at regular intervals.
  • the circular hole of the fin is subjected to burring processing to form a cylindrical collar at the edge in order to increase the area in close contact with the circular tube, and the fin plate between the circular holes
  • the part is provided with a slit for improving heat exchange performance with ventilation.
  • the fins are cut into a desired strip length after press working, and after a desired number of layers are sequentially stacked in the collar portion, a plurality of long circular tubes having U-shaped forming portions 115 ′ called hairpins are formed. Inserted.
  • the lamination of the fins and the insertion of the circular tube are performed on a color basis.
  • the fins constituting the outer heat exchanger 106 'and the inner heat exchanger 107' are stacked and fixed at equal intervals in the collar height. That is, as shown in FIG. 4, the outer heat exchanger 106 ′ and the inner heat exchanger 107 ′ have a constant fin interval.
  • the plurality of circular pipes are brazed with parts such as a U-bend 116 ′ for pipe connection and a distributor bent at the end of the heat exchanger into a U shape, so that a plurality of circular pipes are placed in the fins.
  • the laminated fin through which the circular tube is inserted is bent into an L shape a plurality of times (for example, twice), and finally the laminated fin and the internal heat transfer tube are arranged in the direction of the contour line 117 ′.
  • the outer heat exchanger 106 ′ and the inner heat exchanger 107 ′ are substantially U-shaped.
  • the pitch between the fins of the outer heat exchanger 106 ′ and the inner heat exchanger 107 ′ configured in this manner is fixed depending on the collar height of the burring process, and as described in the background art, It is difficult to change the fin pitch according to the internal structure.
  • the outer heat exchanger 106 and the inner heat exchanger 107 constituting the heat exchanger assembly 103 have a structure in which the fin pitch can be easily changed unlike the conventional case. That is, unlike the conventional case, the outer heat exchanger 106 and the inner heat exchanger 107 constituting the heat exchanger assembly 103 have no fin collar, and the pitch between the fins is determined by the burring collar height. This is because the pitch of the fins can be easily changed because there is no gap or because a fin collar shorter than the stacking interval of the fins is provided.
  • the outdoor unit 101 according to the first embodiment can arrange the fins in consideration of the internal structure and from the viewpoint of the price to performance ratio. Thereby, in the outdoor unit 101 according to Embodiment 1, it is possible to further improve heat exchange efficiency and achieve energy saving.
  • the surfaces 111 to 114 of the heat exchanger assembly 103 face outside the housing 102 as compared to the adjacent surfaces (the outer adjacent surface 108 and the inner adjacent surface 109) of the heat exchanger assembly 103. Since the opening cross-sectional area is large, the ventilation resistance is small, and air passes at a higher wind speed. That is, on the adjacent surface of the heat exchanger assembly 103, since the opening cross-sectional area facing the outside of the housing 102 is small, the ventilation resistance is large, and air passes at a low wind speed. Therefore, in the heat exchanger assembly 103, as shown in FIG. 3, the interval between the fins constituting the outer adjacent surface 108 and the inner adjacent surface 109 is larger than the interval between the fins forming the surfaces 111 to 114. It is trying to become.
  • FIG. 5 is a schematic perspective view schematically showing a part of the heat exchanger (the outer heat exchanger 106 and the inner heat exchanger 107) constituting the heat exchanger assembly 103.
  • 5A shows the outer heat exchanger 106 and the inner heat exchanger 107 provided with the flat tube 1
  • FIG. 5B shows the outer heat exchanger 106 and the inner heat exchanger 107 provided with the circular tube 1A. Respectively.
  • outer heat exchanger 106 and the inner heat exchanger 107 provided with the flat tube 1 are collected together, and the flat tube heat exchanger 120 and the outer heat exchanger 106 and the inner heat exchanger 107 provided with the circular tube 1A are collected together.
  • the circular pipe heat exchanger 120A will be referred to as a description.
  • the outer heat exchanger 106 and the inner heat exchanger 107 shown in FIG. 5 (a) have flat heat transfer tubes in which a part of the cross-sectional shape is a curve. That is, the flat tube heat exchanger 120 includes a plurality of flat tubes 1 having a flat cross section with a long side portion being a straight line and a short side portion having a curve such as a semicircular shape. The plurality of flat tubes 1 are arranged in parallel at a predetermined interval (for example, at equal intervals) in a direction orthogonal to the flow direction of the refrigerant flowing in the tubes.
  • the flat tube heat exchanger 120 has a plurality of flat (rectangular) fins 2.
  • the fins 2 are arranged in parallel with a predetermined interval in the refrigerant flow direction (direction orthogonal to the direction in which the flat tubes 1 are arranged). Since the fin 2 has a rectangular shape in which the long axis direction of the flat tube 1 is longer than the length of the flat tube 1 in the width direction (up and down direction in the drawing), the flat tube 1 is defined as the short direction.
  • the major axis direction of 1 is defined as the longitudinal direction.
  • each notch 4 is formed, for example, with the same number and the same interval (except for both ends) as the flat tube 1.
  • each notch 4 is formed to have a width dimension substantially the same as that of the flat tube 1.
  • the notch 4 is formed so that one end of the fin 2 is opened. That is, the notches 4 are formed so as to be arranged in a comb-like shape in the longitudinal direction of the fins 2.
  • the fin 2 is formed with a gate-type (bridge-type) cut-and-raised portion 5 that is formed by cutting a part of the fin 2 between the notches 4. This cut and raised 5 functions to promote heat exchange between air and the refrigerant.
  • a fin collar 6 raised in a direction perpendicular to the fin 2 is provided at the edge of each notch 4. The fin collar 6 has a shape cut and raised shorter than the stacking interval of the fins 2.
  • each flat tube 1 and each fin 2 are fixed by joining the flat tube 1 and the fin collar 6 with a brazing material or the like.
  • a flat tube heat exchanger 120 compared with a heat exchanger composed of a conventional circular tube and fins, it is equivalent or more in terms of expansion of the contact surface area between the refrigerant and the tube by narrowing the tube. It has been shown in many literatures that the volume to performance ratio can be obtained.
  • the flat tube heat exchanger 120 having a size corresponding to the performance required for the outdoor unit 101 is selected and mounted on the outdoor unit 101.
  • the outer heat exchanger 106 and the inner heat exchanger 107 shown in FIG. 5 (b) have a circular tube 1A having a circular cross section.
  • the plurality of circular pipes 1A are arranged in a staggered manner at a predetermined interval (for example, at equal intervals) in a direction orthogonal to the flow path direction of the refrigerant flowing in the pipe.
  • the circular tube heat exchanger 120 ⁇ / b> A has flat plate-like fins 2 ⁇ / b> A similar to the fins 2 of the flat tube heat exchanger 120.
  • the fins 2A are arranged in parallel with a predetermined interval in the flow direction of the refrigerant (a direction perpendicular to the direction in which the circular tubes 1A are arranged).
  • each notch 4A is formed, for example, at the same number as the circular pipe 1A and at the same interval (excluding both ends) as the arrangement interval of the circular pipes 1.
  • the fin 2A is formed with a gate-type (bridge-type) cut-and-raised 5A formed by cutting and raising a part of the fin 2A between the notches 4A.
  • the cut and raised 5A functions to promote heat exchange between air and the refrigerant.
  • a fin collar 6A raised in a direction perpendicular to the fin 2A is provided at the edge of each notch 4A.
  • the fin collar 6 ⁇ / b> A has a shape that is cut and raised shorter than the stacking interval of the fins 2 ⁇ / b> A similarly to the fin collar 6.
  • each circular pipe 1A and each fin 2A are fixed by joining the circular pipe 1A and the fin collar 6A with a brazing material or the like.
  • the circular pipe heat exchanger 120 ⁇ / b> A having a size corresponding to the performance required for the outdoor unit 101 is selected and mounted on the outdoor unit 101.
  • the outdoor unit 101 since the outdoor unit 101 includes the heat exchanger assembly 103 including the flat tube heat exchanger 120 or the circular tube heat exchanger 120A, the outdoor unit 101 has a larger fin pitch than the other surfaces 111 to 114. By stacking the fins to form the outer adjacent surface 108 and the inner adjacent surface 109, the fins can be distributed more effectively than in the past. Therefore, the outdoor unit 101 can arrange fin density suitable for performance improvement, can improve heat exchange efficiency from the viewpoint of price to performance ratio, and can achieve energy saving and low cost. In addition, in an outdoor unit with specifications that do not have any problem with the conventional performance, by reducing the total number of fins to the above-mentioned performance improvement, downsizing of the outdoor unit 101 while ensuring equivalent performance, Cost reduction is possible.
  • FIG. FIG. 6 is a schematic perspective view schematically showing the structure of the heat exchanger assembly 103A mounted on the outdoor unit according to Embodiment 2 of the present invention. Based on FIG. 6, the structure of the heat exchanger assembly 103A will be described.
  • the basic configuration of the outdoor unit according to Embodiment 2 is the same as that of outdoor unit 101 described in Embodiment 1.
  • differences from the first embodiment will be mainly described, and the same parts as those in the first embodiment will be denoted by the same reference numerals and description thereof will be omitted.
  • the heat exchanger assembly 103A is bent and formed into a substantially U shape like the heat exchanger assembly 103 described in the first embodiment, and finally the fin stack and the internal heat transfer tube are arranged in the direction of the contour line 117.
  • the heat exchanger assembly 103A has a two-row configuration of an outer heat exchanger 106A and an inner heat exchanger 107A.
  • the two heat exchanger assemblies 103A are arranged such that the outer adjacent surfaces 108A of the two outer heat exchangers 106A and the inner adjacent surfaces 109A of the two inner heat exchangers 107A face each other.
  • the outer heat exchanger 106A and the inner heat exchanger 107A constituting the heat exchanger assembly 103A have heat transfer tubes (flat tubes or circular tubes) inserted in the same number and the same interval as the heat transfer tubes in the longitudinal direction of the plate surface. Are formed and inserted into plate-like fins arranged at predetermined intervals. After pressing, the fins are cut to the desired strip length, and are sequentially laminated in the collar part, and then a plurality of long heat transfer tubes each having a U-shaped part 115 called a hairpin are inserted.
  • the heat transfer tubes flat tubes or circular tubes
  • the fins constituting the outer heat exchanger 106A and the inner heat exchanger 107A are stacked and fixed at a predetermined interval. Thereafter, a plurality of heat transfer tubes (flat tubes or circular tubes) are brazed to components such as a U-bend 116 for pipe connection and a distributor that are bent into a U shape at the end of the heat exchanger. Thereby, the continuous flow path of the refrigerant
  • the outer heat exchanger 106A and the inner heat exchanger 107A constituting the heat exchanger assembly 103A have a structure in which the fin pitch can be easily changed. That is, since the outer heat exchanger 106A and the inner heat exchanger 107A constituting the heat exchanger assembly 103A are different from the conventional one, the pitch between the fins is not determined by the collar height of the burring process. Or in order to provide the fin collar shorter than the lamination
  • the outer heat exchanger 106A and the inner heat exchanger 107A are configured with consideration given to the thickness of the fins and the stacking interval of the fins.
  • the surfaces 111 to 114 of the heat exchanger assembly 103A are out of the casing as compared to the adjacent surfaces (the outer adjacent surface 108A and the inner adjacent surface 109A) of the heat exchanger assembly 103A. Since the opening cross-sectional area to face is large, ventilation resistance is small and air passes at a larger wind speed. That is, on the adjacent surface of the heat exchanger assembly 103A, the opening cross-sectional area facing the outside of the housing is small, so the ventilation resistance is large and air passes at a low wind speed.
  • a part of the interval between the fins constituting the outer adjacent surface 108A and the inner adjacent surface 109A is set as the interval between the fins forming the surfaces 111 to 114.
  • the stacking interval of the fins on the surface 36 on the end portion side of the outer adjacent surface 108A is made larger than the stacking interval of the fins on the surface 38 on the R portion (curved portion) side.
  • the outdoor unit according to the second embodiment is equipped with the heat exchanger assembly 103A in which the fin pitch can be easily changed similarly to the heat exchanger assembly 103 described in the first embodiment, the internal structure of the outdoor unit is Considering this further, fin density arrangement suitable for performance improvement is possible, and fins can be arranged based on the viewpoint of price to performance ratio. Thereby, in the outdoor unit according to Embodiment 2, it is possible to further improve the heat exchange efficiency and achieve more energy saving. In addition, in outdoor units with specifications that do not have any problem with conventional performance, the above-mentioned performance improvement is directed to the reduction of the total number of fins 2, thereby reducing the size of the outdoor unit while ensuring equivalent performance. Cost reduction is possible.
  • FIG. 7 is a circuit diagram schematically showing a basic configuration of an air conditioner 50 according to Embodiment 3 of the present invention. Based on FIG. 7, the structure and operation
  • the air conditioner 50 includes an outdoor unit and an indoor unit, and can perform a cooling operation or a heating operation by circulating a refrigerant through elemental devices mounted thereon.
  • the air conditioner 50 is described as including the outdoor unit 101 according to the first embodiment.
  • the air conditioner 50 may include the outdoor unit according to the second embodiment.
  • the air conditioner 50 is mounted with a compressor 51, a heat source side heat exchanger 52, an expansion device 53, and a use side heat exchanger 54 as element devices connected by piping.
  • the compressor 51 and the heat source side heat exchanger 52 are mounted on the outdoor unit 101
  • the expansion device 53 and the use side heat exchanger 54 are mounted on the indoor unit 60.
  • the expansion device 53 may be mounted not on the indoor unit 60 but on the outdoor unit 101.
  • a flow path switching device such as a four-way valve for switching the refrigerant flow may be provided on the discharge side of the compressor 51.
  • the compressor 51 sucks refrigerant and compresses the refrigerant to a high temperature / high pressure state.
  • the compressor 51 includes an inverter compressor capable of capacity control.
  • the heat source side heat exchanger 52 performs heat exchange between the air forcibly supplied from the fan 55 and the refrigerant. As the heat source side heat exchanger 52, the heat exchanger assembly described in the first embodiment or the second embodiment is applied.
  • the expansion device 53 expands the refrigerant by depressurizing it, and is configured by a device whose opening degree can be variably controlled, for example, an electronic expansion valve.
  • the use-side heat exchanger 54 performs heat exchange between air and a refrigerant that are forcibly supplied from a blower such as a fan (not shown).
  • the number of fans 55 is the same as the number of heat exchanger assemblies constituting the heat source side heat exchanger 52, and supplies air to the heat source side heat exchanger 52.
  • the air conditioner 50 includes the outdoor unit 101 on which the heat exchanger assembly 103 including the flat tube heat exchanger 120 or the circular tube heat exchanger 120A is mounted.
  • the fins 2 can be distributed more effectively than in the prior art by forming the outer adjacent surface 108 and the inner adjacent surface 109 by laminating the fins 2 with a larger fin pitch than the other surfaces 111 to 114. . Therefore, the air conditioner 50 enables fin density arrangement suitable for performance improvement, can improve heat exchange efficiency from the viewpoint of price to performance ratio, and can achieve energy saving and low cost.
  • FIG. FIG. 8 is a schematic diagram for explaining a part of the manufacturing method of the heat exchanger assembly according to Embodiment 4 of the present invention. Based on FIG. 8, the manufacturing method of the flat tube heat exchanger which comprises the heat exchanger assembly 103 is demonstrated. Here, the description will be made assuming that the flat tube heat exchanger 120 described in the first embodiment is manufactured. In the fourth embodiment, the same parts as those in the first to third embodiments are denoted by the same reference numerals and description thereof is omitted.
  • a coil material wound with, for example, an aluminum thin plate to be the fin 2 is prepared.
  • the aluminum thin plate supplied from the coil material is pressed by a progressive die (not shown) mounted on a high-speed press.
  • the notch 4 is continuously press-molded on the aluminum thin plate together with the circular pilot holes 16 formed on both outer sides.
  • an intermittent hoop feeding operation (arrow 17) is performed by utilizing a positioning pin inserted into the pilot hole 16, and the aluminum thin plate is fed out as a hoop-shaped fin train 18 as shown in FIG.
  • the fin series 18 is separated as one fin 2 by the cutter cutting operation (arrow 19) above the flat tubes 1 arranged in parallel. Thereafter, the fin 2 is gripped by a transfer mechanism (not shown) utilizing a cam and a servo, for example, and moves and rotates downward (arrow 20). By doing so, the fin 2 is inserted into the upper portion of the flat tube 1 from the opening side of the notch 4. Finally, the fin 2 is pushed in until a predetermined distance from the rear end of the fin group 21 already inserted in the flat tube 1 and the inner part of the notch 4 contact the upper portion of the flat tube 1. This completes the insertion and arrangement of the fins 2 into the flat tube 1.
  • a plurality of flat tubes 1 are arranged in parallel, and can be moved and positioned in the long axis direction of the flat tubes 1 together.
  • a conveyance mechanism (not shown) including a servo, a ball screw, a linear guide, etc. , Hoop feed mechanism).
  • the flat tube 1 is positioned by the pitch feed operation
  • the cutting operation (arrow 19) and movement / rotation operation (arrow 20) of the fin 2 and the pitch feed operation (arrow 22) of the flat tube 1 are synchronized with the transfer mechanism and the servo mechanism, and the hoop feed of the high-speed press. Sequentially performed so as to follow the operation (arrow 17). As a result, the fins 2 are stacked at a predetermined interval. Note that the synchronization deviation between the high-speed press and the transfer mechanism can be absorbed by, for example, slacking the hoop material around the path roller, providing a material buffer, and increasing or decreasing the press stroke while detecting the amount of slack. Good.
  • the fin pitch can be adjusted to a desired interval by changing the pitch movement amount of the pitch feed operation (arrow 22).
  • the pitch movement amount is adjusted by setting with the control controller of the transport mechanism.
  • the pitch movement amount is set to be large, and the surfaces 111 to 114 are configured.
  • the pitch movement amount is set small. Then, by laminating the required number of fins 2, a fin group assembly 25 composed of fin groups 23 having a large stacking interval and 24 having a small stacking interval is completed. In FIG. 8, the assembling of the fin group assembly 25 is shown.
  • the fin group assembly 25 in which the lamination of the fins 2 is completed is performed by brazing or bonding in a furnace using a brazing material pre-coated on the flat tube 1 or an adhesive applied to a gap. It is fixed to the flat tube 1. After that, the fin group assembly 25 is connected to the piping parts in a state where the two rows are stacked, and is bent twice in the state where the two rows are stacked, so that the flat tube heat exchanger 120 having a substantially U shape is formed. Is completed (see FIG. 9).
  • the flat tube heat exchanger 120 is manufactured by the manufacturing method as described above, when the stacking interval is changed, unlike the conventional operation of inserting the circular tube into the pre-stacked fin group, the color height is increased. It is possible to change to various fin pitches (fin stacking intervals) immediately by changing the controller command value of the pitch movement amount for the transport mechanism without the need for complicated molds or large presses to change the height. It becomes possible. That is, according to the manufacturing method according to the fourth embodiment, it is possible to easily change the stacking pitch of the fins 2 without increasing the die costs, the press machine costs, and the assembly work of the fins 2.
  • the flat tube heat exchanger 120 is different from the conventional one in which the collar is lowered and is not overlapped on the basis of the color, and it is not necessary to insert fins over the entire length of the heat transfer tube, regardless of the length of the flat tube 1, A desired number of fins 2 can be inserted into the flat tube 1. Therefore, the flat tube heat exchanger 120 easily realizes high-speed operation that follows the punching speed of a high-speed press of several hundred SPM (number of strokes per minute) with almost no influence of the workpiece shape. Fin pitch can be realized.
  • FIG. 9 is a schematic diagram for explaining a part of the manufacturing method of the heat exchanger assembly according to Embodiment 4 of the present invention. Based on FIG. 9, a method for manufacturing the heat exchanger assembly 103 ⁇ / b> A described in the second embodiment will be described. In addition, in FIG. 9, the subsequent bending process of the flat tube heat exchanger 120 manufactured with the manufacturing method of FIG. 8 is illustrated.
  • the heat exchanger bending apparatus 150 shown in FIG. 9 is for bending the fin group assembly 25 and includes at least an L bending jig 40 and a mounting table 41.
  • the L bending jig 40 bends the flat tube 1 constituting the fin group assembly 25 substantially at a right angle (substantially L-shaped).
  • the L-bending jig 40 includes a gripping portion 40a that grips the fin group assembly 25 and a movable portion 40b that rotationally drives the gripping portion 40a at a substantially right angle, and grips a predetermined position of the fin group assembly 25.
  • the bent portion 40a is rotationally driven by the movable portion 40b, whereby the flat tube 1 is bent. At this time, the flat tube 1 is bent at a substantially right angle in the width direction.
  • the mounting table 41 is for mounting a fin group assembly 25 that is slid in a predetermined direction (right side in FIG. 9) by a driving unit such as a roller (not shown).
  • the mounting table 41 is provided with a guide rail (not shown), for example, and the fin group assembly 25 mounted on the mounting table 41 can be slid by being driven by the drive unit. ing.
  • the fin group assembly 25 in which the lamination of the fins 2 is completed is fixed to the flat tube 1.
  • the fin group assembly 25 is stacked in two rows, and piping parts (for example, the U-shaped forming portion 115 and the U bend 116) are connected.
  • the fin group assembly 25 is mounted on the mounting table 41 of the heat exchanger bending apparatus 150.
  • the fin group assembly 25 mounted on the mounting table 41 is slid by the mounting table 41.
  • the fin group assembly 25 slides to a predetermined position (the position of the fin group 24 constituting the outer adjacent surface 108 and the inner adjacent surface 109)
  • the fin group assembly 25 is gripped by the grip portion 40a of the L bending jig 40.
  • the gripping portion 40a grips the fin group 24 having a small stacking interval.
  • the fin group assembly 25 gripped by the gripping portion 40a is bent at a substantially right angle by the gripping portion 40a that is rotationally driven by the action of the movable portion 40b while being slid (first L-shaped bending).
  • first R portion 44 is formed in the fin group assembly 25.
  • the grip portion 40 a releases the grip of the fin group assembly 25.
  • the fin group assembly 25 is slid in the moving direction by the mounting table 41. Then, when the fin group assembly 25 slides to a predetermined position (the position of the fin group 24 constituting the surface 112 or the surface 113), it is gripped again by the gripping portion 40a of the L bending jig 40. Again, the gripping part 40a grips the fin group 24 with a small stacking interval.
  • the fin group assembly 25 gripped by the gripping portion 40a is bent at a substantially right angle by the gripping portion 40a that is rotationally driven by the action of the movable portion 40b while being slid (second L-shaped bending). By doing so, the second R portion 45 is formed in the fin group assembly 25. When the second R portion 45 is formed, the grip portion 40 a releases the grip of the fin group assembly 25. As described above, the substantially U-shaped heat exchanger assembly 103A is completed.
  • the heat exchanger bending apparatus 150 holds the fin group 24 having a small stacking interval by the holding portion 40a, the stress applied to the end face of the fin 2 when the flat tube 1 is bent can be reduced. Therefore, the heat exchanger bending apparatus 150 can efficiently suppress the occurrence of the fin 2 falling or buckling during bending. Therefore, even when the plate thickness of the fin 2 is thinner or the stacking interval of the fins 2 is wider, it is possible to arrange the fins 2 having a larger stacking interval while ensuring the work quality. Therefore, according to the method for manufacturing a heat exchanger assembly according to the fourth embodiment, a heat exchanger assembly that can improve heat exchange efficiency and achieve energy saving, low cost, and downsizing from the viewpoint of price-performance ratio is obtained. be able to.
  • the method for manufacturing the heat exchanger assembly 103A described in the second embodiment has been described as an example. However, the method may be applied to the method for manufacturing the heat exchanger assembly 103 described in the first embodiment. Needless to say, it is good. However, in this case, attention should be paid to the portion gripped by the grip portion 40a.
  • the structure which the flat tube 1 located in an adjacent surface (the outer side adjacent surface 108, the inner side adjacent surface 109) is short compared with the length of the flat tube 1 located in surfaces other than an adjacent surface is an example.
  • the present invention is not limited to this, and the length is the same as the length of the flat tube 1 located on the surface other than the adjacent surface, or longer than the length of the flat tube 1 located on the surface other than the adjacent surface. Needless to say, the same effect can be expected.
  • positioned two substantially U-shaped heat exchangers in parallel and mounted in the outdoor unit was shown, it is three or more if it is the arrangement structure provided with the adjacent surface. It goes without saying that the same effect can be expected even in an outdoor unit equipped with this heat exchanger.
  • the number of upper and lower stages of the heat exchanger is not particularly described.
  • the heat exchanger may have a single-stage configuration, or the heat exchanger may have two stages. It is good also as the above structure.
  • a heat exchanger having a two-row configuration is shown as an example.
  • the present invention is not limited to this, and a heat exchanger having a single-row configuration or a heat exchanger having three or more rows may be used. A similar effect can be expected.

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

Abstract

L'invention porte sur un ensemble échangeur de chaleur (103) installé dans une unité extérieure (101), lequel ensemble comporte des ailettes empilées à l'intérieur desquelles sont formées des entailles, les entailles ne comprenant pas de collerettes d'ailette ou comprenant des entailles ayant des collerettes d'ailette ayant une longueur inférieure à la largeur des espaces entre les ailettes empilées. Ainsi, au moins certains des espaces entre des ailettes empilées (2) qui forment des faces opposées sont plus grands que les espaces entre des ailettes empilées (2) qui forment des faces autres que les faces opposées.
PCT/JP2011/007260 2011-12-26 2011-12-26 Unité extérieure et climatiseur WO2013098872A1 (fr)

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Application Number Priority Date Filing Date Title
CN201180074202.5A CN103890494A (zh) 2011-12-26 2011-12-26 室外机及空气调节机
EP11879058.3A EP2799786A4 (fr) 2011-12-26 2011-12-26 Unité extérieure et climatiseur
PCT/JP2011/007260 WO2013098872A1 (fr) 2011-12-26 2011-12-26 Unité extérieure et climatiseur
US14/343,171 US20140196874A1 (en) 2011-12-26 2011-12-26 Outdoor unit, air-conditioning apparatus, and method for manufacturing outdoor units

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WO2016151755A1 (fr) * 2015-03-24 2016-09-29 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド Climatiseur
JP2016205744A (ja) * 2015-04-27 2016-12-08 ダイキン工業株式会社 熱交換器および空気調和機
WO2017199339A1 (fr) * 2016-05-17 2017-11-23 三菱電機株式会社 Unité extérieure pour dispositif de climatisation
WO2017212543A1 (fr) * 2016-06-07 2017-12-14 三菱電機株式会社 Unité extérieure pour dispositif de climatisation
JP2020020574A (ja) * 2019-11-06 2020-02-06 ダイキン工業株式会社 熱交換器

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JP5538503B2 (ja) * 2012-10-05 2014-07-02 三菱電機株式会社 室外機及び冷凍サイクル装置
CN107850320B (zh) * 2015-06-25 2020-07-14 东芝开利株式会社 顶部设置型空气调和机及热交换器
CN105588227A (zh) * 2015-08-19 2016-05-18 青岛海信日立空调系统有限公司 一种空调室外机及空调
KR102491602B1 (ko) 2015-10-23 2023-01-25 삼성전자주식회사 공기조화기
JP6701515B2 (ja) * 2016-02-29 2020-05-27 株式会社富士通ゼネラル 空気調和機の室外機
JP6725871B2 (ja) * 2016-02-29 2020-07-22 株式会社富士通ゼネラル 空気調和機の室外機
WO2017187227A1 (fr) * 2016-04-27 2017-11-02 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド Climatiseur
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WO2014119430A1 (fr) * 2013-02-01 2014-08-07 三菱電機株式会社 Unité extérieure et dispositif de cycle de réfrigération
WO2015136654A1 (fr) * 2014-03-12 2015-09-17 三菱電機株式会社 Dispositif frigorifique
WO2016151756A1 (fr) * 2015-03-24 2016-09-29 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド Climatiseur
WO2016151755A1 (fr) * 2015-03-24 2016-09-29 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー （ホンコン） リミテッド Climatiseur
JP2016205744A (ja) * 2015-04-27 2016-12-08 ダイキン工業株式会社 熱交換器および空気調和機
WO2017199339A1 (fr) * 2016-05-17 2017-11-23 三菱電機株式会社 Unité extérieure pour dispositif de climatisation
US10837656B2 (en) 2016-05-17 2020-11-17 Mitsubishi Electric Corporation Outdoor unit for air-conditioning apparatus
WO2017212543A1 (fr) * 2016-06-07 2017-12-14 三菱電機株式会社 Unité extérieure pour dispositif de climatisation
EP3467391A4 (fr) * 2016-06-07 2019-05-29 Mitsubishi Electric Corporation Unité extérieure pour dispositif de climatisation
US10712023B2 (en) 2016-06-07 2020-07-14 Mitsubishi Electric Corporation Outdoor unit for an air-conditioning apparatus
JP2020020574A (ja) * 2019-11-06 2020-02-06 ダイキン工業株式会社 熱交換器

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EP2799786A1 (fr) 2014-11-05

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