WO2020213079A1 - Échangeur de chaleur et dispositif à cycle de réfrigération - Google Patents

Échangeur de chaleur et dispositif à cycle de réfrigération Download PDF

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Publication number
WO2020213079A1
WO2020213079A1 PCT/JP2019/016407 JP2019016407W WO2020213079A1 WO 2020213079 A1 WO2020213079 A1 WO 2020213079A1 JP 2019016407 W JP2019016407 W JP 2019016407W WO 2020213079 A1 WO2020213079 A1 WO 2020213079A1
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WO
WIPO (PCT)
Prior art keywords
header
reinforcing member
heat exchanger
flat
refrigerant
Prior art date
Application number
PCT/JP2019/016407
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English (en)
Japanese (ja)
Inventor
真哉 東井上
前田　剛志
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 PCT/JP2019/016407 priority Critical patent/WO2020213079A1/fr
Priority to JP2021514707A priority patent/JPWO2020213079A1/ja
Publication of WO2020213079A1 publication Critical patent/WO2020213079A1/fr

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    • 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
    • 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

Definitions

  • the present invention relates to a heat exchanger and a refrigeration cycle device provided with the heat exchanger, and particularly to a structure for suppressing buckling of a flat tube.
  • the minor axis length of the flat tube is set to less than 1 mm, and a plurality of flat tubes are used as header pipes.
  • Heat exchangers connected in parallel along the axial direction of the above have been proposed (see, for example, Patent Document 1).
  • the minor axis length is the length in the lateral direction in the vertical cross section of the flat tube.
  • an auxiliary member extending along the arrangement direction of the refrigerant flow path is provided between adjacent flat pipes to maintain the distance between the adjacent flat pipes.
  • the present invention is for solving the above-mentioned problems, and an object of the present invention is to provide a heat exchanger and a refrigeration cycle device capable of suppressing buckling of a flat tube in the tube axis direction.
  • the heat exchangers according to the present invention are arranged in the first direction at intervals from each other, and are connected to a plurality of flat tubes through which the refrigerant flows and one ends of the plurality of flat tubes extending in the first direction.
  • a second reinforcing member connected to the other end of the first header and the other end of the second header, and the first reinforcing member and the second reinforcing member are included in a plurality of flat pipes. It faces the outermost flat tube in the arrangement direction of the plurality of flat tubes.
  • the refrigeration cycle device according to the present invention is provided with the heat exchanger according to the present invention.
  • the heat exchanger is connected to a first reinforcing member connected to one end of the first header and one end of the second header, and to the other end of the first header and the other end of the second header. It also has a second reinforcing member.
  • the heat exchanger supports the first header and the second header at both ends of the first header and the second header, and determines the length between the first header and the second header. Can be fixed. Therefore, the heat exchanger can secure the buckling resistance of the flat tube in the tube axial direction, and can avoid the deformation of the heat exchanger.
  • FIG. It is a refrigerant circuit diagram which shows the structure of the refrigeration cycle apparatus provided with the heat exchanger according to Embodiment 1.
  • FIG. It is a perspective view which shows the main part structure of the heat exchanger which concerns on Embodiment 1.
  • FIG. It is a conceptual diagram which looked at the heat exchanger which concerns on Embodiment 1 from the side.
  • It is an exploded perspective view which shows the main part structure of the heat exchanger which concerns on Embodiment 1.
  • FIG. It is an exploded perspective view seen from another direction which shows the main part structure of the heat exchanger which concerns on Embodiment 1.
  • FIG. It is sectional drawing which shows the structure of the flat tube of the heat exchanger which concerns on Embodiment 1.
  • FIG. 5 is a plan view of the first reinforcing member constituting the heat exchanger according to the first embodiment as viewed in the axial direction of the header.
  • FIG. 8 is a cross-sectional view taken along the line AA of the first reinforcing member of FIG.
  • FIG. 5 is a plan view of the second reinforcing member constituting the heat exchanger according to the first embodiment as viewed in the axial direction of the header.
  • FIG. 10 is a cross-sectional view taken along the line BB of the second reinforcing member of FIG. FIG.
  • FIG. 5 is a plan view of a reinforcing member which is a first modification of the reinforcing member constituting the heat exchanger according to the first embodiment as viewed in the axial direction of the header.
  • FIG. 2 is a sectional view taken along line CC of the reinforcing member of FIG.
  • FIG. 5 is a plan view of a reinforcing member which is a second modification of the reinforcing member constituting the heat exchanger according to the first embodiment as viewed in the axial direction of the header.
  • FIG. 4 is a cross-sectional view taken along the line DD of the reinforcing member of FIG. FIG.
  • FIG. 5 is a plan view of a reinforcing member which is a third modification of the reinforcing member constituting the heat exchanger according to the first embodiment as viewed in the axial direction of the header.
  • 16 is a cross-sectional view taken along the line EE of the reinforcing member of FIG. It is a perspective view which shows the main part structure of the heat exchanger which concerns on Embodiment 2.
  • FIG. 2 It is a perspective view which showed the main part structure of the heat exchanger which concerns on Embodiment 2 and was seen from another direction. It is a perspective view which shows the main part structure of the heat exchanger which concerns on Embodiment 3.
  • FIG. 1 is a refrigerant circuit diagram showing a configuration of a refrigeration cycle device 100 provided with a heat exchanger 50 according to the first embodiment.
  • the arrow indicated by the dotted line indicates the direction in which the refrigerant flows in the refrigerant circuit 110 during the cooling operation
  • the arrow indicated by the solid line indicates the direction in which the refrigerant flows during the heating operation. ..
  • the refrigeration cycle apparatus 100 provided with the heat exchanger 50 will be described with reference to FIG.
  • the air conditioner is exemplified as the refrigerating cycle device 100, but the refrigerating cycle device 100 is, for example, refrigerating a refrigerator or a freezer, a vending machine, an air conditioner, a refrigerating device, a water heater, or the like. Used for applications or air conditioning applications.
  • the illustrated refrigerant circuit 110 is an example, and the configuration of circuit elements and the like is not limited to the contents described in the embodiment, and can be appropriately changed within the scope of the technique according to the embodiment. ..
  • the refrigerating cycle device 100 has a refrigerant circuit 110 in which a compressor 101, a flow path switching device 102, an indoor heat exchanger 103, a decompression device 104, and an outdoor heat exchanger 105 are cyclically connected via a refrigerant pipe. ..
  • a heat exchanger 50 which will be described later, is used for at least one of the outdoor heat exchanger 105 and the indoor heat exchanger 103.
  • the refrigeration cycle device 100 has an outdoor unit 106 and an indoor unit 107.
  • the outdoor unit 106 includes a compressor 101, a flow path switching device 102, an outdoor heat exchanger 105 and a decompression device 104, and an outdoor blower 108 that supplies outdoor air to the outdoor heat exchanger 105.
  • the indoor unit 107 includes an indoor heat exchanger 103 and an indoor blower 109 that supplies air to the indoor heat exchanger 103.
  • the outdoor unit 106 and the indoor unit 107 are connected to each other via two extension pipes 111 and 112 which are a part of the refrigerant pipe.
  • the compressor 101 is a fluid machine that compresses and discharges the sucked refrigerant.
  • the flow path switching device 102 is, for example, a four-way valve, and is a device that switches the flow path of the refrigerant between the cooling operation and the heating operation by controlling the control device (not shown).
  • the indoor heat exchanger 103 is a heat exchanger that exchanges heat between the refrigerant circulating inside and the indoor air supplied by the indoor blower 109.
  • the indoor heat exchanger 103 functions as a condenser during the heating operation and as an evaporator during the cooling operation.
  • the pressure reducing device 104 is, for example, an expansion valve, which is a device for reducing the pressure of the refrigerant.
  • an electronic expansion valve whose opening degree is adjusted by the control of the control device can be used.
  • the outdoor heat exchanger 105 is a heat exchanger that exchanges heat between the refrigerant circulating inside and the air supplied by the outdoor blower 108.
  • the outdoor heat exchanger 105 functions as an evaporator during the heating operation and as a condenser during the cooling operation.
  • the low-pressure gas-liquid two-phase refrigerant flows into the outdoor heat exchanger 105 and evaporates by heat exchange with the air supplied by the outdoor blower 108.
  • the evaporated refrigerant becomes a low-pressure gas state and is sucked into the compressor 101.
  • the refrigerant flowing through the refrigerant circuit 110 flows in the opposite direction to that during the heating operation. That is, during the cooling operation of the refrigeration cycle device 100, the high-pressure and high-temperature gas-state refrigerant discharged from the compressor 101 flows into the outdoor heat exchanger 105 via the flow path switching device 102 and is supplied by the outdoor blower 108. It exchanges heat with the air and condenses.
  • the condensed refrigerant is in a high-pressure liquid state, flows out of the outdoor heat exchanger 105, and is in a low-pressure gas-liquid two-phase state by the decompression device 104.
  • the low-pressure gas-liquid two-phase refrigerant flows into the indoor heat exchanger 103 and evaporates by heat exchange with the air supplied by the indoor blower 109.
  • the evaporated refrigerant becomes a low-pressure gas state and is sucked into the compressor 101.
  • FIG. 2 is a perspective view showing a configuration of a main part of the heat exchanger 50 according to the first embodiment.
  • FIG. 3 is a conceptual diagram of the heat exchanger 50 according to the first embodiment as viewed from the side.
  • FIG. 4 is an exploded perspective view showing a main configuration of the heat exchanger 50 according to the first embodiment.
  • FIG. 5 is an exploded perspective view showing the main configuration of the heat exchanger 50 according to the first embodiment as viewed from another direction.
  • the arrow RF shown by hatching indicates the flow of the refrigerant flowing into the heat exchanger 50 or flowing out from the heat exchanger 50.
  • the heat exchanger 50 according to the first embodiment will be described with reference to FIGS. 2 to 5.
  • the heat exchanger 50 includes a plurality of flat tubes 60 through which a refrigerant flows, a first header 71 connected to one end of each of the plurality of flat tubes 60 in the extending direction, and a plurality of flat tubes. It has a second header 72 connected to the other end of each of the 60 in the stretching direction. Further, the heat exchanger 50 includes a first refrigerant connecting pipe 41 attached to the axial end of the first header 71 and a second refrigerant connecting pipe 42 attached to the axial end of the second header 72. And have.
  • the heat exchanger 50 includes a first reinforcing member 91 that connects one end of the first header 71 and the second header 72, and a second reinforcing member 92 that connects the other ends of the first header 71 and the second header 72. have.
  • the first reinforcing member 91, the first header 71, the second header 72, and the second reinforcing member are arranged in this order from the arrangement side of the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42.
  • the members 92 are arranged in this order. That is, the first header 71 and the second header 72 are sandwiched between the first reinforcing member 91 and the second reinforcing member 92.
  • the heat exchanger 50 has a plurality of flat tubes 60 between the first header 71 and the second header 72. As shown in FIG.
  • the heat exchanger 50 has a distance L between the first header 71 and the second header 72, and two flat tubes located at both ends in the arrangement direction in the plurality of flat tubes 60.
  • the distance L is configured to be a distance less than or equal to the distance W (distance L ⁇ distance W).
  • the first header 71 and the second header 72 may be collectively referred to as the header 70
  • the first reinforcing member 91 and the second reinforcing member 92 may be collectively referred to as the reinforcing member 90.
  • Each of the plurality of flat tubes 60 allows the refrigerant to flow inside.
  • Each of the plurality of flat tubes 60 extends between the first header 71 and the second header 72.
  • Each of the plurality of flat tubes 60 is arranged at intervals from each other, and is parallel to the axial direction which is the extending direction of the header 70.
  • the plurality of flat tubes 60 are arranged so as to face each other.
  • a gap serving as an air flow path is formed between two adjacent flat pipes 60 among the plurality of flat pipes 60.
  • the arrangement direction of the plurality of flat tubes 60 and the extension direction of the header 70 are defined as the first direction.
  • the arrangement direction of the plurality of flat tubes 60 which is the first direction
  • the arrangement direction of the plurality of flat tubes 60 which is the first direction
  • the arrangement direction of the plurality of flat tubes 60 which is the first direction
  • the extending direction of the plurality of flat tubes 60 is the vertical direction.
  • the extending direction of the plurality of flat tubes 60 is not limited to the vertical direction, and may be a horizontal direction or a direction inclined with respect to the vertical direction.
  • the flat tubes 60 adjacent to each other among the plurality of flat tubes 60 are not connected to each other by a heat transfer promoting member.
  • the heat transfer promoting member is, for example, a plate fin, a corrugated fin, or the like.
  • the heat exchanger 50 When the heat exchanger 50 functions as an evaporator of the refrigeration cycle device 100, the refrigerant flows through the inside of the flat pipe 60 from one end to the other end in the extending direction in each of the plurality of flat pipes 60. Further, when the heat exchanger 50 functions as a condenser of the refrigeration cycle device 100, the refrigerant flows through the inside of the flat pipe 60 from the other end in the extending direction toward one end in each of the plurality of flat pipes 60.
  • FIG. 6 is a cross-sectional view showing the configuration of the flat tube 60 of the heat exchanger 50 according to the first embodiment.
  • the flat tube 60 has a unidirectionally flat cross-sectional shape such as an oval shape.
  • the flat tube 60 has a first side end portion 60a and a second side end portion 60b, and a pair of flat surfaces 60c and flat surfaces 60d.
  • the first side end portion 60a is formed so as to be convex outward between one end portion of the flat surface 60c and one end portion of the flat surface 60d.
  • the second side end portion 60b is formed so as to be convex outward between the other end portion of the flat surface 60c and the other end portion of the flat surface 60d.
  • the first side end portion 60a is a side end portion arranged on the windward side, that is, on the front edge side in the flow of air passing through the heat exchanger 50.
  • the second side end portion 60b is a side end portion arranged on the leeward side, that is, the trailing edge side in the flow of air passing through the heat exchanger 50.
  • the direction perpendicular to the extending direction of the flat pipe 60 and along the flat surface 60c and the flat surface 60d may be referred to as the semimajor axis direction of the flat pipe 60.
  • the long axis direction of the flat tube 60 is the left-right direction
  • the short axis direction is the up-down direction.
  • the flat tube 60 has a distance LA1 larger than the distance LB1.
  • the flat pipe 60 is formed with a plurality of refrigerant passages 62 arranged between the first side end portion 60a and the second side end portion 60b along the long axis direction.
  • the flat pipe 60 is a flat perforated pipe in which a plurality of refrigerant passages 62 through which the refrigerant flows are arranged in the air flow direction.
  • Each of the plurality of refrigerant passages 62 is formed so as to extend parallel to the extending direction of the flat pipe 60.
  • Each of the partition walls 63 between the adjacent refrigerant passages 62 is continuous to both ends in the extending direction of the flat pipe 60.
  • the cross-sectional shape and the number of formed refrigerant passages 62 are not limited to the illustrated embodiment, and may be formed in various shapes such as a circular shape or a triangular shape, and may be formed by one or a plurality of formed numbers. Also good.
  • FIG. 7 is a cross-sectional view showing a configuration of a modified example of a plurality of flat tubes 60 of the heat exchanger 50 according to the first embodiment.
  • Each of the plurality of flat tubes 60 may include fin portions 65 projecting from the long axis direction of the flat tubes 60.
  • the fin portion 65 is a plate-shaped portion provided so as to project from one or both of the first side end portion 60a and the second side end portion 60a and extend in the major axis direction of each of the plurality of flat tubes 60. Is.
  • the fin portion 65 extends in the long axis direction of the flat tube 60, but is not limited to this form.
  • the fin portion 65 may be formed in a state of being inclined at a predetermined angle in the arrangement direction of the plurality of flat tubes 60 with respect to the major axis direction.
  • the flat tubes 60 adjacent to each other among the plurality of flat tubes 60 the flat tubes 60 are not connected to each other by the heat transfer promoting member. Therefore, each of the plurality of flat tubes 60 is not connected to the flat tubes 60 arranged adjacent to each other via the fin portion 65.
  • the header 70 is formed so as to extend along the arrangement direction of the plurality of flat tubes 60, which is the first direction.
  • the header 70 functions as a fluid distribution mechanism in the heat exchanger 50 that distributes the refrigerant flowing into the heat exchanger 50 to the plurality of flat tubes 60.
  • the header 70 also functions as a fluid merging mechanism in the heat exchanger 50, in which the refrigerant flowing out of the heat exchanger 50 flows out of the plurality of flat tubes 60 and merges.
  • the header 70 has a first header 71 and a second header 72.
  • One of the first header 71 and the second header 72 functions as a fluid distribution mechanism, and the other functions as a fluid merging mechanism.
  • the first header 71 is connected to one end of each of the plurality of flat tubes 60 in the extending direction
  • the second header 72 is connected to the other end of each of the plurality of flat tubes 60 in the extending direction.
  • the first header 71 and the second header 72 are attached to both ends of the plurality of flat tubes 60 in the extending direction.
  • the first header 71 closes a cylindrical first tubular portion 73a extending in the arrangement direction of the plurality of flat tubes 60 (left-right directions of FIGS. 2 to 5 on the paper surface) and one end of the first tubular portion 73a. It has a first base end portion 73b and a first tip portion 73c that closes the other end of the first tubular portion 73a.
  • the second header 72 includes a cylindrical second tubular portion 74a extending in the arrangement direction of the plurality of flat tubes 60, a second base end portion 74b that closes one end of the second tubular portion 74a, and the like. It has a second tip portion 74c that closes the other end of the second tubular portion 74a.
  • the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72 show an embodiment configured in a cylindrical shape, but the embodiment is not limited to the cylindrical shape, and for example, a cross section is used. A cylinder having a polygonal shape may be used.
  • the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72 extend parallel to each other in the arrangement direction of the plurality of flat tubes 60.
  • the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72 are connected to the flat pipe 60 so that the inside of the cylinder and the refrigerant passage 62 of the flat pipe 60 communicate with each other. ing.
  • the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72 have a plurality of first branch portions 75 and a plurality of wall portions facing each other.
  • the second branch portion 76 of the above is formed.
  • the plurality of first branch portions 75 are through holes formed in the first tubular portion 73a
  • the plurality of second branch portions 76 are through holes formed in the second tubular portion 74a.
  • the plurality of first branch portions 75 and the plurality of second branch portions 76 are formed at predetermined intervals P along the arrangement direction of the plurality of flat tubes 60.
  • the first branch portion 75 and the second branch portion 76 are flat in the first tubular portion 73a and the second tubular portion 74a in the same manner as the outer peripheral shape of the flat pipe 60 when viewed in the extending direction of the flat pipe 60. It is formed in an open shape.
  • each of the plurality of flat tubes 60 is inserted into the first branch portion 75, and the other ends of the plurality of flat tubes 60 are inserted into the second branch portion 76, respectively.
  • the opening edges of the first branch portion 75 and the second branch portion 76 are joined to the outer peripheral surface of the flat pipe 60 by brazing over the entire circumference.
  • the second header 72 is in the extending direction (vertical direction of FIG. 3 on the paper) of the plurality of flat tubes 60 that are planarly orthogonal to the arrangement direction of the plurality of flat tubes 60 with respect to the first branch portion 75 of the first header 71.
  • the plurality of flat tubes 60 are heat exchangers.
  • a group of tubes arranged in the arrangement direction of the plurality of flat tubes 60 is formed.
  • the first header 71 has a first refrigerant connection pipe 41 that communicates with the inside of the first header 71.
  • the first refrigerant connecting pipe 41 is connected to the first base end portion 73b in the extending direction of the first header 71.
  • a first convex portion 77 is formed on the first tip portion 73c.
  • the first base end portion 73b constitutes a wall that closes one end of the first tubular portion 73a.
  • a first refrigerant connecting pipe 41 that protrudes outward in the axial direction of the first header 71 and communicates with the inside of the first tubular portion 73a is connected to the first base end portion 73b.
  • the first refrigerant connecting pipe 41 is a tubular member through which the refrigerant flows.
  • the first refrigerant connecting pipe 41 is formed in a cylindrical shape, for example.
  • the first refrigerant connection pipe 41 communicates with the inside of the first header 71 to form an inflow port for the refrigerant flowing into the first header 71, or an outflow port for the refrigerant flowing out from the first header 71.
  • the first refrigerant connecting pipe 41 is inserted into the first through hole portion 95 of the first reinforcing member 91.
  • the first tip portion 73c constitutes a wall that closes the other end of the first tubular portion 73a.
  • the first tip portion 73c is formed with a first convex portion 77 that projects outward in the axial direction of the first header 71.
  • the first convex portion 77 constitutes a portion of the first header 71 that is inserted into the first concave portion 97 of the second reinforcing member 92.
  • the first convex portion 77 is formed in the first header 71 on the side opposite to the arrangement side of the first refrigerant connecting pipe 41.
  • the first convex portion 77 is formed in a columnar shape.
  • the shape of the first convex portion 77 is not limited to the cylindrical shape.
  • the first convex portion 77 may have a shape that is inserted into the first concave portion 97 formed in the second reinforcing member 92, and may be formed in a polygonal columnar shape, for example.
  • the second header 72 has a second refrigerant connection pipe 42 that communicates with the inside of the second header 72.
  • the second refrigerant connecting pipe 42 is connected to the second base end portion 74b in the extending direction of the second header 72.
  • a second convex portion 78 is formed on the second tip portion 74c.
  • the second base end portion 74b constitutes a wall that closes one end of the second tubular portion 74a.
  • a second refrigerant connecting pipe 42 that projects outward in the axial direction of the second header 72 and communicates with the inside of the second tubular portion 74a is connected to the second base end portion 74b.
  • the second refrigerant connecting pipe 42 is a tubular member through which the refrigerant flows.
  • the second refrigerant connecting pipe 42 is formed in a cylindrical shape, for example.
  • the second refrigerant connection pipe 42 communicates with the inside of the second header 72 to form an inflow port for the refrigerant flowing into the second header 72, or an outflow port for the refrigerant flowing out from the second header 72.
  • the second refrigerant connecting pipe 42 is inserted into the second through hole portion 96 of the first reinforcing member 91.
  • the second tip portion 74c constitutes a wall that closes the other end of the second tubular portion 74a.
  • the second tip portion 74c is formed with a second convex portion 78 that projects outward in the axial direction of the second header 72.
  • the second convex portion 78 constitutes a portion of the second header 72 that is inserted into the second concave portion 98 of the second reinforcing member 92.
  • the second convex portion 78 is formed in the second header 72 on the side opposite to the arrangement side of the second refrigerant connecting pipe 42.
  • the second convex portion 78 is formed in a columnar shape. The shape of the second convex portion 78 is not limited to the cylindrical shape.
  • the second convex portion 78 may have a shape that is inserted into the second concave portion 98 formed in the second reinforcing member 92, and may be formed in a polygonal columnar shape, for example. Further, the first convex portion 77 and the second convex portion 78 may have the same shape or different shapes.
  • the reinforcing member 90 is used as a general term for the first reinforcing member 91 and the second reinforcing member 92.
  • the reinforcing member 90 has a first reinforcing member 91 and a second reinforcing member 92.
  • the first reinforcing member 91 is connected to one end of each of the first header 71 and the second header 72
  • the second reinforcing member 92 is connected to the other ends of each of the first header 71 and the second header 72. That is, the heat exchanger 50 is attached to the first reinforcing member 91 connected to one end of the first header 71 and one end of the second header 72, and the other end of the first header 71 and the other end of the second header 72. It has a second reinforcing member 92 connected to it.
  • the heat exchanger 50 has the first reinforcing member 91 and the second reinforcing member 92 having the above configuration, so that the first header 71 and the second header 72 can be fixed before the first header 71 and the second header 72 are fixed. Positioning can be performed with 72.
  • the reinforcing member 90 and the header 70 are fixed by brazing, for example.
  • the first reinforcing member 91 fixes one end of the first header 71 and one end of the second header 72 by brazing
  • the second reinforcing member 92 is brazed to the other end of the first header 71.
  • the other end of the second header 72 is fixed.
  • the reinforcing member 90 is fixed only to the header 70. In other words, the reinforcing member 90 is not fixed to the flat pipe 60, and fins or the like are arranged between the flat pipe 60 and the reinforcing member 90 and are not fixed to the fins or the like.
  • the material of the reinforcing member 90 is a material having a smaller coefficient of thermal expansion than the material of the flat pipe 60.
  • the material of the flat tube 60 is aluminum
  • stainless steel having a smaller coefficient of thermal expansion than aluminum can be used as the material of the reinforcing member 90.
  • FIG. 8 is a plan view of the first reinforcing member 91 constituting the heat exchanger 50 according to the first embodiment as viewed in the axial direction of the header 70.
  • FIG. 9 is a cross-sectional view taken along the line AA of the first reinforcing member 91 of FIG.
  • the first reinforcing member 91 will be described with reference to FIGS. 8 and 9.
  • the first reinforcing member 91 is connected to the end of the first header 71 and the end of the second header 72.
  • the first reinforcing member 91 faces the outermost flat pipe 60 arranged between the first header 71 and the second header 72 in the arrangement direction of the plurality of flat pipes 60. ..
  • the first reinforcing member 91 is the first refrigerant in the arrangement direction of the plurality of flat pipes 60 between the first header 71 and the second header 72. It faces the flat pipe 67 arranged at the position closest to the connecting pipe 41 and the second refrigerant connecting pipe 42.
  • the first reinforcing member 91 is a plate-shaped member having a flat shape in one direction such as an oval shape.
  • the first reinforcing member 91 is not limited to a flat shape in one direction such as an oval shape, and may have another shape such as a rectangular shape.
  • the first reinforcing member 91 has a pair of first side edge portions 91a and a second side edge portion 91b, and a pair of first side end portions 91c and a second side end portion 91d.
  • the distance between the first side end portion 91c and the second side end portion 91d is the longitudinal direction of the first reinforcing member 91, and the distance between the first side edge portion 91a and the second side edge portion 91b is the first reinforcement.
  • the longitudinal direction of the first reinforcing member 91 is the extending direction of the flat pipe 60
  • the lateral direction of the first reinforcing member 91 is the long axis direction of the flat pipe 60.
  • the first side end 91c is arranged on the first header 71 side
  • the second side end 91d is arranged on the second header 72 side.
  • the first reinforcing member 91 has a pair of flat surfaces 91e and a flat surface 91f between the first side end portion 91c and the second side end portion 91d.
  • the flat surface 91e and the flat surface 91f are in the thickness direction of the first reinforcing member 91, and in the heat exchanger 50, the thickness direction of the first reinforcing member 91 is the arrangement direction of the plurality of flat tubes 60. Arranged like this.
  • the flat surface 91e abuts on the heat exchanger 50 so as to face the first base end portion 73b and the second base end portion 74b.
  • the flat surface 91e faces the outermost flat pipe 67 arranged between the first header 71 and the second header 72 in the arrangement direction of the plurality of flat pipes 60 in the heat exchanger 50. ..
  • the flat surface 91f constitutes a surface of the heat exchanger 50 opposite to the side on which the first header 71, the second header 72, and the flat tube 60 are arranged. As shown in FIG. 2, the heat exchanger 50 is configured such that the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 project from the flat surface 91f.
  • the first reinforcing member 91 has a first through hole portion 95 and a second through hole portion 96.
  • the first through hole portion 95 and the second through hole portion 96 form a through hole penetrating the wall between the flat surface 91e and the flat surface 91f of the first reinforcing member 91.
  • the opening shape of the first through-hole portion 95 and the second through-hole portion 96 is formed in a circular shape, but it may be a shape along the outer peripheral wall of the first refrigerant connecting pipe 41. It is not limited to a circular shape.
  • the first refrigerant connecting pipe 41 is inserted through the first through-hole portion 95
  • the second refrigerant connecting pipe 42 is inserted through the second through-hole portion 96.
  • FIG. 10 is a plan view of the second reinforcing member 92 constituting the heat exchanger 50 according to the first embodiment as viewed in the axial direction of the header 70.
  • FIG. 11 is a sectional view taken along line BB of the second reinforcing member 92 of FIG.
  • the second reinforcing member 92 will be described with reference to FIGS. 10 and 11.
  • the second reinforcing member 92 faces the outermost flat pipe 60 arranged between the first header 71 and the second header 72 in the arrangement direction of the plurality of flat pipes 60. ..
  • the second reinforcing member 92 is the first refrigerant in the arrangement direction of the plurality of flat pipes 60 between the first header 71 and the second header 72. It faces the flat pipe 68 arranged at the farthest position from the connecting pipe 41 and the second refrigerant connecting pipe 42.
  • the second reinforcing member 92 is connected to the end of the first header 71 and the end of the second header 72.
  • the second reinforcing member 92 is arranged at the ends of the first header 71 and the second header 72 on the side opposite to the side on which the first reinforcing member 91 is arranged.
  • the second reinforcing member 92 faces the first reinforcing member 91 with the first header 71, the second header 72, and the plurality of flat pipes 60 in between.
  • the second reinforcing member 92 is a plate-shaped member having a flat shape in one direction such as an oval shape.
  • the second reinforcing member 92 is not limited to a flat shape in one direction such as an oval shape, and may have another shape such as a rectangular shape.
  • the second reinforcing member 92 has a pair of first side edge portions 92a and a second side edge portion 92b, and a pair of first side end portions 92c and a second side end portion 92d.
  • the first side end portion 92c is arranged on the first header 71 side
  • the second side end portion 92d is arranged on the second header 72 side.
  • the second reinforcing member 92 has a pair of flat surfaces 92e and a flat surface 92f between the first side end portion 92c and the second side end portion 92d.
  • the flat surface 92e and the flat surface 92f are in the thickness direction of the second reinforcing member 92, and in the heat exchanger 50, the thickness direction of the second reinforcing member 92 is the arrangement direction of the plurality of flat tubes 60. Arranged like this.
  • the flat surface 92e abuts on the first tip portion 73c and the second tip portion 74c in the heat exchanger 50 so as to face each other.
  • the flat surface 92e faces the flat tube 68 arranged on the outermost side in the arrangement direction of the plurality of flat tubes 60 between the first header 71 and the second header 72 in the heat exchanger 50. ..
  • the flat surface 92f constitutes a surface of the heat exchanger 50 opposite to the side on which the first header 71, the second header 72, and the flat tube 60 are arranged.
  • the second reinforcing member 92 has a first recess 97 and a second recess 98 on the flat surface 92e side.
  • the first recess 97 and the second recess 98 are concave portions formed in the second reinforcing member 92, and the wall on the flat surface 92e side is recessed on the flat surface 92f side to reduce the wall thickness. Is.
  • the opening shape of the first concave portion 97 and the second concave portion 98 is formed in a circular shape, but if the shape is along the outer peripheral wall of the first convex portion 77 and the second convex portion 78, respectively. , For example, other shapes such as a rectangular shape may be used.
  • the first convex portion 77 of the first header 71 is inserted into the first concave portion 97 of the second reinforcing member 92.
  • the second convex portion 78 of the second header 72 is inserted into the second concave portion 98 of the second reinforcing member 92.
  • the first concave portion 97 and the second concave portion 98 may be configured so that the first convex portion 77 and the second convex portion 78 can be inserted, respectively, and the shapes of the first concave portion 97 and the second concave portion 98 are concave. It is not limited.
  • the first recess 97 and the second recess 98 may be formed as through holes penetrating the wall between the flat surface 92e and the flat surface 92f of the second reinforcing member 92.
  • FIG. 12 is a plan view of the reinforcing member 90A, which is a first modification of the reinforcing member 90 constituting the heat exchanger 50 according to the first embodiment, as viewed in the axial direction of the header 70.
  • FIG. 13 is a sectional view taken along line CC of the reinforcing member 90A of FIG.
  • the reinforcing member 90A which is a first modification of the reinforcing member 90, will be described with reference to FIGS. 12 and 13.
  • the reinforcing member 90A will be described with reference to the first reinforcing member 91A.
  • the first reinforcing member 91A has a through hole portion 99 formed in a single elongated hole shape by connecting the first through hole portion 95 and the second through hole portion 96.
  • the through hole portion 99 forms a through hole that penetrates the wall between the flat surface 91e and the flat surface 91f of the first reinforcing member 91.
  • the opening shape of the through hole 99 is formed in an oval shape, but it may be long as long as it has a shape along the outer peripheral walls of the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42. It is not limited to a circular shape.
  • the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 are inserted into the through hole portion 99.
  • the heat exchanger 50 can be reduced in weight by having the through hole portion 99 in the first reinforcing member 91A.
  • the second reinforcing member 92 also has a through hole formed in a single elongated hole shape by connecting the first recess 97 and the second recess 98. It may have a part 99.
  • FIG. 14 is a plan view of the reinforcing member 90B, which is a second modification of the reinforcing member 90 constituting the heat exchanger 50 according to the first embodiment, as viewed in the axial direction of the header 70.
  • FIG. 15 is a sectional view taken along line DD of the reinforcing member 90B of FIG.
  • the reinforcing member 90B which is a second modification of the reinforcing member 90, will be described with reference to FIGS. 14 and 15.
  • the reinforcing member 90B will be described with reference to the first reinforcing member 91B.
  • the first reinforcing member 91B has a bent portion 90B1 on a wall forming between the first through hole portion 95 and the second through hole portion 96.
  • the bent portion 90B1 has a wavy shape between the first side edge portion 91a and the second side edge portion 91b so that the wall has a top P and a valley V continuously. It is the part that is formed. The wall between the top P and the valley V is formed so as to face each other at a predetermined angle between the adjacent top P and the wall between the valley V.
  • the bent portion 90B1 of the first reinforcing member 91B has five tops P and six valleys V, but the number of tops P and valleys V is limited to these. It is not something that will be done.
  • the bent portion 90B1 of the first reinforcing member 91B may have, for example, one top P and two valley Vs, and the number of tops P and valleys V is arbitrary.
  • the wall between the top P and the valley V is formed in a straight line, but the top P and the valley V
  • the walls between them may be formed in a curved shape. That is, the wall between the first side edge portion 91a and the second side edge portion 91b may be a combination of flat surfaces or a combination of curved surfaces.
  • the width between the top portion P and the valley portion V is the thickness of the first reinforcing member 91B between the first side edge portion 91a and the second side edge portion 91b. Although it is constant in the longitudinal direction, the width between the top P and the valley V does not have to be constant.
  • the bent portion 90B1 has a width between the top portion P and the valley portion V between the first side edge portion 91a and the second side edge portion 91b of the first reinforcing member 91B. Although it is constant in the lateral direction, the width between the top P and the valley V does not have to be constant.
  • the bent portion 90B1 is provided in all the regions of the wall forming between the first through hole portion 95 and the second through hole portion 96 as shown in FIG. 14 in the longitudinal direction of the first reinforcing member 91B.
  • the configuration of the bent portion 90B1 is not limited to the configuration, and the bent portion 90B1 is a part of the wall constituting between the first through hole portion 95 and the second through hole portion 96. It may be provided in the area.
  • the first reinforcing member 91B describes a configuration having one bent portion 90B1, the first reinforcing member 91B may have one or more bent portions 90B1 in the longitudinal direction. Further, one or a plurality of bent portions 90B1 may be provided in the lateral direction.
  • the continuous ridge line of the top P and the continuous ridge line of the valley V are formed parallel to the longitudinal direction of the first reinforcing member 91B, but the top P is continuous.
  • the ridge line and the continuous ridge line of the valley portion V may intersect with respect to the longitudinal direction of the reinforcing member 90B.
  • the bent portion 90B1 has the ridge line of the top P and the ridge line of the valley V of the first reinforcing member 91B. It is desirable that they are formed parallel to the longitudinal direction.
  • the second reinforcing member 92 also has a bent portion 90B1 in the wall forming between the first recess 97 and the second recess 98. You may be doing it.
  • the reinforcing member 90B at least one of the first reinforcing member 91B and the second reinforcing member 92 is bent in a wavy shape in a vertical cross section between the first header 71 and the second header 72 in the longitudinal direction. It has a part 90B1.
  • FIG. 16 is a plan view of the reinforcing member 90C, which is a third modification of the reinforcing member 90 constituting the heat exchanger 50 according to the first embodiment, as viewed in the axial direction of the header 70.
  • FIG. 17 is a sectional view taken along line EE of the reinforcing member 90C of FIG.
  • the reinforcing member 90C which is a third modification of the reinforcing member 90, will be described with reference to FIGS. 16 and 17.
  • the reinforcing member 90C will be described with reference to the first reinforcing member 91C.
  • the first reinforcing member 91C has a protruding portion 90C1 on a wall forming between the first through hole portion 95 and the second through hole portion 96.
  • the projecting portion 90C1 is formed so as to project from the flat surface 91f side between the first side edge portion 91a and the second side edge portion 91b.
  • the protruding direction of the protruding portion 90C1 is the first direction which is the arrangement direction of the plurality of flat tubes 60 in the heat exchanger 50.
  • the protruding portion 90C1 is formed in a convex shape by a pair of side wall portions 90C12 and a protruding wall portion 90C11.
  • the amount of protrusion of the pair of side wall portions 90C12 may be constant in the longitudinal direction of the first reinforcing member 91C, for example, it becomes smaller as it approaches the first through hole portion 95 and the second through hole portion 96 from the central portion in the longitudinal direction. , May change in the longitudinal direction of the first reinforcing member 91C.
  • the pair of side wall portions 90C12 are formed linearly in a plan view of the first reinforcing member 91C in the thickness direction, but may be formed in a curved shape.
  • the first reinforcing member 91C has a configuration having one protruding portion 90C1, but the first reinforcing member 91C may have one or a plurality of protruding portions 90C1 in the longitudinal direction. Further, it may have one or a plurality of protrusions 90C1 in the lateral direction.
  • the second reinforcing member 92 also has a protruding portion 90C1 on the wall forming between the first recess 97 and the second recess 98. You may be.
  • the reinforcing member 90C is a protruding portion in which at least one of the first reinforcing member 91C and the second reinforcing member 92 projects in the first direction in a cross section perpendicular to the longitudinal direction between the first header 71 and the second header 72. It has 90C1.
  • the refrigerant flows through the refrigerant passages 62 of the plurality of flat pipes 60, absorbs heat and evaporates, flows out from the second refrigerant connecting pipe 42 through the second header 72, and circulates in the refrigerant circuit 110.
  • the heat exchanger 50 is connected to a first reinforcing member 91 connected to one end of the first header 71 and one end of the second header 72, and to the other end of the first header 71 and the other end of the second header 72. It also has a second reinforcing member 92.
  • the heat exchanger 50 uses the reinforcing member 90 to support the first header 71 and the second header 72 at both ends of the first header 71 and the second header 72, and the first header 71 and the second header 72. The length between 72 can be maintained. Therefore, the heat exchanger 50 can secure the buckling strength of the flat tube 60 and can avoid the deformation of the heat exchanger 50. Further, by holding the reinforcing member 90 in a state where the first header 71 and the second header 72 are sandwiched between them, the displacement between the first header 71 and the second header 72 is suppressed in the axial direction of the header 70. can do.
  • the plurality of flat tubes 60 are arranged so as to face each other.
  • the first reinforcing member 91 and the second reinforcing member 92 face the flat pipes 60 arranged on the outermost side in the arrangement direction of the plurality of flat pipes 60 among the plurality of flat pipes 60. Therefore, the first reinforcing member 91 and the second reinforcing member 92 can be applied to the so-called finless heat exchanger 50.
  • the finless heat exchanger is a heat exchanger having a configuration in which a plurality of flat tubes 60 are not connected to each other by a heat transfer promoting member such as fins or corrugated fins.
  • the first reinforcing member 91 has a first through hole portion 95 through which the first refrigerant connecting pipe 41 is inserted. Therefore, the first reinforcing member 91 can be connected to one end of the first header 71 even if the first header 71 has the first refrigerant connecting pipe 41. Further, the heat exchanger 50 facilitates the positioning of the first reinforcing member 91 when the first reinforcing member 91 is attached to the first header 71. Further, the first reinforcing member 91 may further have a second through-hole portion 96 through which the second refrigerant connecting pipe 42 is inserted.
  • the first reinforcing member 91 can be connected to one end of the second header 72 even if the second header 72 has the second refrigerant connecting pipe 42. Further, the heat exchanger 50 facilitates the positioning of the first reinforcing member 91 when the first reinforcing member 91 is attached to the second header 72.
  • the first reinforcing member 91 has a first through-hole portion 95 through which the first refrigerant connecting pipe 41 is inserted, and a second through-hole portion 96 through which the second refrigerant connecting pipe 42 is inserted. Therefore, in the first reinforcing member 91, even if the first header 71 has the first refrigerant connecting pipe 41 and the second header 72 has the second refrigerant connecting pipe 42, one end of the first header 71 and the first one. 2 One end of the header 72 can be connected.
  • the first reinforcing member 91 is connected to one end of the first header 71 and one end of the second header 72, and the second reinforcing member 92 is the other end of the first header 71 and the second header 72.
  • the first reinforcing member 91 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60.
  • the heat exchanger 50 can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 are connected to the same end side of the first header 71 and the second header 72, so that the pipe is connected to the heat exchanger 50. Can be collected on one side of. Therefore, the heat exchanger 50 can be improved in assembling property and can save space.
  • the heat exchanger 50 is more accurate because the first refrigerant connecting pipe 41 is inserted into the first through hole portion 95 and the second refrigerant connecting pipe 42 is inserted into the second through hole portion 96. Positioning between the first header 71 and the second header 72 is performed. Therefore, the first reinforcing member 91 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60. As a result, the heat exchanger 50 can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • the second reinforcing member 92 has a second concave portion 98 formed in a concave shape into which the second convex portion 78 is inserted.
  • the second reinforcing member 92 has the second recess 98, the positioning of the second reinforcing member 92 when the second reinforcing member 92 is attached to the second header 72 becomes easy.
  • the second reinforcing member 92 further has a first concave portion 97 formed in a concave shape into which the first convex portion 77 is inserted.
  • the second reinforcing member 92 since the second reinforcing member 92 has the first recess 97, the positioning of the second reinforcing member 92 when the second reinforcing member 92 is attached to the first header 71 becomes easy.
  • the first convex portion 77 is inserted into the first concave portion 97 of the second reinforcing member 92, and the second convex portion 78 is inserted into the second concave portion 98, whereby the second reinforcing member 92 Positions between the first header 71 and the second header 72. Therefore, the second reinforcing member 92 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60. As a result, the heat exchanger 50 can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • At least one of the first reinforcing member 91B and the second reinforcing member 92 has a curved portion 90B1 formed in a wavy shape in a vertical cross section between the first header 71 and the second header 72 in the longitudinal direction.
  • the reinforcing member 90 can have higher strength than when it is formed in a flat plate shape, and the plate material can be made thinner. Further, since the reinforcing member 90 can make the plate material thin, the material cost can be suppressed.
  • the reinforcing member 90 can have higher strength than when it is formed in a flat plate shape, and the plate material can be made thinner. Further, since the reinforcing member 90 can make the plate material thin, the material cost can be suppressed.
  • the material of the first reinforcing member 91 and the second reinforcing member 92 is a material having a smaller coefficient of thermal expansion than the material of the plurality of flat pipes 60.
  • the flat tube 60 and the header 70 are brazed, the flat tube 60 extends in the pipe axial direction due to thermal expansion.
  • the reinforcing member 90 also extends in the same direction as the pipe axis direction of the flat pipe 60.
  • the coefficient of thermal expansion of the flat tube 60 is larger than the coefficient of thermal expansion of the reinforcing member 90, the amount of elongation of the flat tube 60 is larger than that of the reinforcing member 90.
  • the distance between the first header 71 and the second header 72 is defined as the distance L, and the distance between the two flat tubes 60 located at both ends in the arrangement direction among the plurality of flat tubes 60. Is configured to be a distance W or less.
  • the heat exchanger 50 is configured such that the distance L is a distance W or less (distance L ⁇ distance W), so that the flat tube 60 is arranged so that the length of the flat tube 60 in the tube axial direction is set. It is configured to be shorter than the length of the header 70 at the vertical position in the stretching direction. Therefore, in the heat exchanger 50, the buckling resistance of the flat tube 60, which is a flat porous tube, is improved, and deformation of the heat exchanger 50 can be avoided.
  • the outdoor unit 106 on which the heat exchanger 50 is mounted is installed on the roof of a store or a building, the dimension in the height direction corresponding to the extending direction of the flat pipe 60 is suppressed as compared with the conventional outdoor unit. It is possible to prevent the landscape from being spoiled.
  • FIG. 18 is a perspective view showing a main configuration of the heat exchanger 50A according to the second embodiment.
  • FIG. 19 is a perspective view showing a main configuration of the heat exchanger 50A according to the second embodiment as viewed from another direction.
  • the components having the same functions and functions as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the heat exchanger 50A has a first reinforcing member 91 and a second reinforcing member 92.
  • the first reinforcing member 91 has a first through hole portion 95A and a second through hole portion 96A.
  • the first through hole portion 95A and the second through hole portion 96A form a through hole penetrating the wall between the flat surface 91e and the flat surface 91f of the first reinforcing member 91.
  • the opening shapes of the first through-hole portion 95A and the second through-hole portion 96A are formed in a circular shape, but the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72
  • the shape may be along the outer peripheral wall, and is not limited to a circular shape.
  • the first tubular portion 73a of the first header 71 is inserted into the first through hole portion 95A
  • the second tubular portion 74a of the second header 72 is inserted into the second through hole portion 96A. Will be done.
  • the first tubular portion 73a of the first header 71 is inserted through the first through hole portion 95A of the first reinforcing member 91. Further, in the heat exchanger 50A, the second tubular portion 74a of the second header 72 is inserted into the second through hole portion 96A of the first reinforcing member 91.
  • the second reinforcing member 92 has a first recess 97A and a second recess 98A.
  • the first recess 97A and the second recess 98A are concave portions formed in the second reinforcing member 92, and are portions where the wall thickness is reduced between the flat surface 92e and the flat surface 92f.
  • the opening shapes of the first recess 97A and the second recess 98A are formed in a circular shape, but are formed on the outer peripheral walls of the first tubular portion 73a of the first header 71 and the second tubular portion 74a of the second header 72, respectively. Any shape may be used.
  • the first tubular portion 73a of the first header 71 is inserted into the first recess 97A of the second reinforcing member 92.
  • the second tubular portion 74a of the second header 72 is inserted into the second recess 98A of the second reinforcing member 92.
  • the first recess 97A and the second recess 98A may be configured so that the first tubular portion 73a and the second tubular portion 74a can be inserted, respectively, and the shapes of the first recess 97A and the second recess 98A are concave. It is not limited to the shape.
  • the first recess 97A and the second recess 98A may be formed as through holes penetrating the wall between the flat surface 92e and the flat surface 92f of the second reinforcing member 92.
  • the first header 71 is inserted through the first through-hole portion 95A, and the second header 72 is inserted through the second through-hole portion 96A, so that the first reinforcing member 91 causes the first header 71.
  • the second header 72 are positioned. Therefore, the first reinforcing member 91 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60. As a result, the heat exchanger 50A can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • the first tubular portion 73a is inserted into the first recess 97A of the second reinforcing member 92, and the second tubular portion 74a is inserted into the second recess 98A, whereby the second reinforcing member 92 Positions between the first header 71 and the second header 72. Therefore, the second reinforcing member 92 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60. As a result, the heat exchanger 50A can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 are connected to the same end side of the first header 71 and the second header 72, so that the pipe is connected to the heat exchanger 50A. Can be collected on one side of. Therefore, the heat exchanger 50A can be improved in assembling property and can save space.
  • the first reinforcing member 91 has a first through hole portion 95A through which the first header 71 is inserted. Therefore, the first reinforcing member 91 can be connected to one end of the first header 71 even if the first header 71 has the first refrigerant connecting pipe 41. Further, the heat exchanger 50 facilitates the positioning of the first reinforcing member 91 when the first reinforcing member 91 is attached to the first header 71. Further, the first reinforcing member 91 may further have a second through hole portion 96A through which the second header 72 is inserted. In this case, the first reinforcing member 91 can be connected to one end of the second header 72 even if the second header 72 has the second refrigerant connecting pipe 42. Further, the heat exchanger 50 facilitates the positioning of the first reinforcing member 91 when the first reinforcing member 91 is attached to the second header 72.
  • the second reinforcing member 92 has a second recess 98A formed in a concave shape into which the second header 72 is inserted.
  • the second reinforcing member 92 since the second reinforcing member 92 has the second recess 98A, the positioning of the second reinforcing member 92 when the second reinforcing member 92 is attached to the second header 72 becomes easy.
  • the second reinforcing member 92 further has a first recess 97A formed in a concave shape into which the first header 71 is inserted. In the heat exchanger 50A, since the second reinforcing member 92 has the first recess 97A, the positioning of the second reinforcing member 92 when the second reinforcing member 92 is attached to the first header 71 becomes easy.
  • FIG. 20 is a perspective view showing a configuration of a main part of the heat exchanger 50B according to the third embodiment.
  • FIG. 21 is a perspective view showing the main configuration of the heat exchanger 50B according to the third embodiment as viewed from another direction.
  • FIG. 22 is a cross-sectional view of the first reinforcing member 191 of the heat exchanger 50B at the position taken along the line AA of FIG.
  • FIG. 23 is a cross-sectional view of the second reinforcing member 192 of the heat exchanger 50B at the position line BB in FIG.
  • the components having the same functions and functions as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • connection position of the first refrigerant connection pipe 41 with respect to the first header 71 and the connection position of the second refrigerant connection pipe 42 with respect to the second header 72 are different. Is.
  • the heat exchanger 50B is provided so that the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 project to the opposite sides of each other.
  • the first reinforcing member 191 is connected to the end of the first header 71 and the end of the second header 72. As shown in FIG. 22, the first reinforcing member 191 has a pair of flat surfaces 191e and flat surfaces 191f between the first side end portion 91c and the second side end portion 91d. When the direction from one of the flat surface 191e and the flat surface 191f to the other is the thickness direction of the first reinforcing member 191, in the heat exchanger 50B, the first reinforcing member 191 is a flat tube 60 having a plurality of thickness directions. It is arranged so as to be in the arrangement direction of.
  • the flat surface 191e abuts on the heat exchanger 50B so as to face the first base end portion 73b and the second tip portion 74c. Further, the flat surface 191e faces the flat tube 67 arranged on the outermost side in the arrangement direction of the plurality of flat tubes 60 between the first header 71 and the second header 72 in the heat exchanger 50B. ..
  • the flat surface 191f constitutes a surface of the heat exchanger 50B opposite to the side on which the first header 71, the second header 72, and the flat tube 60 are arranged.
  • the heat exchanger 50B according to the third embodiment is configured such that the first refrigerant connecting pipe 41 projects from the flat surface 191f.
  • the first reinforcing member 191 has a first through hole portion 195 and a second recess 198.
  • the first through hole portion 195 forms a through hole penetrating the wall between the flat surface 191e and the flat surface 191f of the first reinforcing member 191.
  • the opening shape of the first through hole portion 195 is formed in a circular shape, but the opening shape is not limited to the circular shape as long as it is a shape along the outer peripheral wall of the first refrigerant connecting pipe 41.
  • the second recess 198 is a concave portion formed in the first reinforcing member 191 and is a portion in which the wall on the flat surface 191e side is recessed on the flat surface 191f side and the wall thickness is reduced.
  • the opening shape of the second concave portion 198 is formed in a circular shape, but other shapes such as a rectangular shape may be used as long as the shape is along the outer peripheral wall of the second convex portion 78.
  • the first refrigerant connecting pipe 41 is inserted into the first through hole portion 195, and the second convex portion 78 is inserted into the second concave portion 198.
  • the second reinforcing member 192 is connected to the end of the first header 71 and the end of the second header 72. As shown in FIG. 23, the second reinforcing member 192 has a pair of flat surfaces 192e and flat surfaces 192f between the first side end portion 92c and the second side end portion 92d. When the direction from one of the flat surface 192e and the flat surface 192f to the other is the thickness direction of the second reinforcing member 192, in the heat exchanger 50B, the second reinforcing member 192 is a flat tube 60 having a plurality of thickness directions. It is arranged so as to be in the arrangement direction of.
  • the flat surface 192e abuts on the heat exchanger 50B so as to face the first tip portion 73c and the second base end portion 74b. Further, the flat surface 192e faces the flat tube 68 arranged on the outermost side in the arrangement direction of the plurality of flat tubes 60 between the first header 71 and the second header 72 in the heat exchanger 50B. ..
  • the flat surface 192f constitutes a surface of the heat exchanger 50 opposite to the side on which the first header 71, the second header 72, and the flat tube 60 are arranged.
  • the heat exchanger 50B according to the third embodiment is configured such that the second refrigerant connecting pipe 42 projects from the flat surface 192f.
  • the second reinforcing member 192 has a second through hole portion 196 and a first recess 197.
  • the second through hole portion 196 forms a through hole penetrating the wall between the flat surface 192e and the flat surface 192f of the second reinforcing member 192.
  • the opening shape of the second through-hole portion 196 is formed in a circular shape, but is not limited to a circular shape as long as it has a shape along the outer peripheral wall of the second refrigerant connecting pipe 42.
  • the first recess 197 is a concave portion formed in the second reinforcing member 192, and is a portion in which the wall on the flat surface 192e side is recessed on the flat surface 192f side and the wall thickness is reduced.
  • the opening shape of the first concave portion 197 is formed in a circular shape, but other shapes such as a rectangular shape may be used as long as the shape is along the outer peripheral wall of the first convex portion 77.
  • the second refrigerant connecting pipe 42 is inserted into the second through hole portion 196, and the first convex portion 77 is inserted into the first concave portion 197.
  • the heat exchanger 50B is connected to a first reinforcing member 191 connected to one end of the first header 71 and one end of the second header 72, and to the other end of the first header 71 and the other end of the second header 72. It also has a second reinforcing member 192.
  • the first header 71 and the second header 72 are supported at both ends of the first header 71 and the second header 72 by using the reinforcing member 90, and the first header 71 and the second header 72 are supported.
  • the length between 72 can be maintained. Therefore, the heat exchanger 50B can secure the buckling strength of the flat tube 60 and can avoid the deformation of the heat exchanger 50B. Further, by holding the reinforcing member 90 in a state where the first header 71 and the second header 72 are sandwiched between them, the displacement between the first header 71 and the second header 72 is suppressed in the axial direction of the header 70. can do.
  • the first reinforcing member 191 has a first through hole portion 195 through which the first refrigerant connecting pipe 41 is inserted. Therefore, the first reinforcing member 191 can be connected to one end of the first header 71 even if the first header 71 has the first refrigerant connecting pipe 41. Further, the heat exchanger 50B facilitates the positioning of the first reinforcing member 191 when the first reinforcing member 191 is attached to the first header 71. Further, the second reinforcing member 192 has a second through hole portion 196 through which the second refrigerant connecting pipe 42 is inserted. The second reinforcing member 192 can be connected to one end of the second header 72 even if the second header 72 has the second refrigerant connecting pipe 42. Further, the heat exchanger 50B facilitates the positioning of the second reinforcing member 192 when the second reinforcing member 192 is attached to the second header 72.
  • the first reinforcing member 191 has a second concave portion 198 formed in a concave shape into which the second convex portion 78 is inserted.
  • the second reinforcing member 192 has a first concave portion 197 formed in a concave shape into which the first convex portion 77 is inserted.
  • the positioning of the second reinforcing member 192 when the second reinforcing member 192 is attached to the first header 71 becomes easy.
  • first reinforcing member 191 has a first through hole portion 195 through which the first refrigerant connecting pipe 41 is inserted and a second concave portion 198 formed in a concave shape into which the second convex portion 78 is inserted.
  • second reinforcing member 192 has a second through-hole portion 196 through which the second refrigerant connecting pipe 42 is inserted, and a first concave portion 197 formed in a concave shape into which the first convex portion 77 is inserted. Therefore, the heat exchanger 50B can perform positioning between the first header 71 and the second header 72 before fixing the first header 71 and the second header 72.
  • the first reinforcing member 191 and the second reinforcing member 192 can maintain the pitch between the first header 71 and the second header 72 in the extending direction of the flat pipe 60.
  • the heat exchanger 50 can always keep the amount of the flat tube 60 inserted into the header 70 constant.
  • the refrigeration cycle apparatus 100 described above includes the heat exchanger according to any one of the first to third embodiments. Therefore, in the refrigeration cycle apparatus 100, the same effect as that of any one of the first and second embodiments can be obtained.
  • first reinforcing member 91 and the second reinforcing member 92 are formed in a plate shape, but may be formed in a columnar shape, for example.
  • first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 are in the extending direction of the header 70. It may be provided at the ends on different sides.
  • the first reinforcing member 91 has a first through hole portion 95A and a second recess 98A
  • the second reinforcing member 92 has a second through hole portion 96A and a first recess 97A.
  • the first header 71 may be inserted into the first through hole portion 95A
  • the second header 72 may be inserted into the second recess 98A.
  • the second header 72 may be inserted into the second through hole portion 96A
  • the first header 71 may be inserted into the first recess 97A.
  • the first refrigerant connecting pipe 41 and the second refrigerant connecting pipe 42 through which the first reinforcing member 191 and the second reinforcing member 192 are inserted may be reversed. That is, in the heat exchanger 50B, the first refrigerant connecting pipe 41 may insert the first reinforcing member 191 and the second refrigerant connecting pipe 42 may insert the second reinforcing member 192.
  • the second reinforcing member 192 can be connected to one end of the second header 72 even if the second header 72 has the second refrigerant connecting pipe 42.

Abstract

L'invention concerne un échangeur de chaleur qui comprend une pluralité de tubes plats qui sont agencés dans une première direction avec un intervalle entre eux et font circuler un fluide frigorigène, un premier collecteur qui s'étend dans la première direction et est relié à une extrémité de chacun de la pluralité de tubes plats, un second collecteur qui s'étend dans la première direction et qui est relié à une autre extrémité de chacun de la pluralité de tubes plats, un premier élément de renforcement qui est relié à une extrémité du premier collecteur et une extrémité du second collecteur, et un second élément de renforcement qui est relié à une autre extrémité du premier collecteur et une autre extrémité du second collecteur. Le premier élément de renforcement et le second élément de renforcement font face aux tubes plats qui, parmi la pluralité de tubes plats, sont les plus éloignés vers l'extérieur dans la direction d'agencement de la pluralité de tubes plats.
PCT/JP2019/016407 2019-04-17 2019-04-17 Échangeur de chaleur et dispositif à cycle de réfrigération WO2020213079A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/016407 WO2020213079A1 (fr) 2019-04-17 2019-04-17 Échangeur de chaleur et dispositif à cycle de réfrigération
JP2021514707A JPWO2020213079A1 (ja) 2019-04-17 2019-04-17 熱交換器及び冷凍サイクル装置

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PCT/JP2019/016407 WO2020213079A1 (fr) 2019-04-17 2019-04-17 Échangeur de chaleur et dispositif à cycle de réfrigération

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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246691A (en) * 1963-11-27 1966-04-19 Fedders Corp Radiators
JPS54122456U (fr) * 1978-02-17 1979-08-27
JPS5646153Y2 (fr) * 1978-02-17 1981-10-28
JPS5761384U (fr) * 1980-09-25 1982-04-12
WO1984001208A1 (fr) * 1982-09-24 1984-03-29 Bryce H Knowlton Assemblage ameliore de radiateur
JPH02161292A (ja) * 1989-04-26 1990-06-21 Calsonic Corp アルミニウム製熱交換器
JPH0292491U (fr) * 1989-01-09 1990-07-23
JPH02242094A (ja) * 1989-03-13 1990-09-26 Nippondenso Co Ltd 熱交換器
JPH0313799A (ja) * 1989-06-12 1991-01-22 Nippondenso Co Ltd コルゲートフィン型熱交換器
JPH0355492A (ja) * 1989-07-25 1991-03-11 Nippondenso Co Ltd 熱交換器
US5667004A (en) * 1996-04-29 1997-09-16 General Motors Corporation Molded plastic heat exchanger mounting channel
JPH10170186A (ja) * 1996-12-10 1998-06-26 Sanden Corp 熱交換器
JPH10176894A (ja) * 1996-12-16 1998-06-30 Sanden Corp 熱交換器
JP2005003264A (ja) * 2003-06-11 2005-01-06 Denso Corp 熱交換器
JP2005249331A (ja) * 2004-03-05 2005-09-15 Japan Climate Systems Corp 熱交換器
JP2016161168A (ja) * 2015-02-27 2016-09-05 カルソニックカンセイ株式会社 熱交換器

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246691A (en) * 1963-11-27 1966-04-19 Fedders Corp Radiators
JPS54122456U (fr) * 1978-02-17 1979-08-27
JPS5646153Y2 (fr) * 1978-02-17 1981-10-28
JPS5761384U (fr) * 1980-09-25 1982-04-12
WO1984001208A1 (fr) * 1982-09-24 1984-03-29 Bryce H Knowlton Assemblage ameliore de radiateur
JPH0292491U (fr) * 1989-01-09 1990-07-23
JPH02242094A (ja) * 1989-03-13 1990-09-26 Nippondenso Co Ltd 熱交換器
JPH02161292A (ja) * 1989-04-26 1990-06-21 Calsonic Corp アルミニウム製熱交換器
JPH0313799A (ja) * 1989-06-12 1991-01-22 Nippondenso Co Ltd コルゲートフィン型熱交換器
JPH0355492A (ja) * 1989-07-25 1991-03-11 Nippondenso Co Ltd 熱交換器
US5667004A (en) * 1996-04-29 1997-09-16 General Motors Corporation Molded plastic heat exchanger mounting channel
JPH10170186A (ja) * 1996-12-10 1998-06-26 Sanden Corp 熱交換器
JPH10176894A (ja) * 1996-12-16 1998-06-30 Sanden Corp 熱交換器
JP2005003264A (ja) * 2003-06-11 2005-01-06 Denso Corp 熱交換器
JP2005249331A (ja) * 2004-03-05 2005-09-15 Japan Climate Systems Corp 熱交換器
JP2016161168A (ja) * 2015-02-27 2016-09-05 カルソニックカンセイ株式会社 熱交換器

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