WO2023181726A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2023181726A1
WO2023181726A1 PCT/JP2023/005392 JP2023005392W WO2023181726A1 WO 2023181726 A1 WO2023181726 A1 WO 2023181726A1 JP 2023005392 W JP2023005392 W JP 2023005392W WO 2023181726 A1 WO2023181726 A1 WO 2023181726A1
Authority
WO
WIPO (PCT)
Prior art keywords
header tank
connecting member
heat exchanger
protrusion
header
Prior art date
Application number
PCT/JP2023/005392
Other languages
English (en)
Japanese (ja)
Inventor
智 金子
Original Assignee
サンデン株式会社
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 サンデン株式会社 filed Critical サンデン株式会社
Publication of WO2023181726A1 publication Critical patent/WO2023181726A1/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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
    • 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 particularly to a heat exchanger in which a plurality of heat exchange units are connected.
  • a heat exchanger is known (for example, Patent Document 1).
  • the connecting member (connecting member) in the heat exchanger of Patent Document 1 is formed by forming a plurality of communication holes with boss portions projecting in a cylindrical shape in one side by burring on one side of two plate materials, and forming these two. It is constructed by joining two boards back to back.
  • the boss portion of the connecting member is inserted into the hole formed in the header tank to join the header tanks while positioning them, and the communication hole between the hole provided in the header tank and the boss portion is connected. A flow path for the heat medium is formed by this.
  • the above-mentioned connecting member has a problem in that it is difficult to process the parts including burring, and the manufacturing cost of the connecting member and, by extension, the heat exchanger increases.
  • the present invention has been made in view of these circumstances, and aims to facilitate the processing of parts and reduce the manufacturing cost of the connecting member and, by extension, the heat exchanger.
  • One aspect of the present invention includes a plurality of heat exchange units having a plurality of tubes and header tanks provided at both longitudinal ends of the tubes, and a connecting member connecting the header tanks of the adjacent heat exchange units.
  • the connecting member is made of a single plate-like member, and includes a plurality of through holes that connect the adjacent header tanks, a first protrusion that projects into one of the header tanks, and a first protrusion that projects into the other header tank. A second protrusion protruding into a header tank.
  • FIG. 1 is a front view showing the appearance of a heat exchanger according to an embodiment of the present invention.
  • FIG. 1 is a side view showing the appearance of a heat exchanger according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of a first header tank and a connecting member applied to a heat exchanger according to an embodiment of the present invention, with the surface to which tubes are connected facing upward.
  • 4(a) is a perspective view of the connecting member 100
  • FIG. 4(b) is a sectional view taken along line AA in FIG. 4(a).
  • 4(c) is a sectional view taken along line BB in FIG. 4(a)
  • FIG. 4(c') is a modification of FIG. 4(c)
  • FIG. 4(d) is a sectional view taken along line CC in FIG. 4(a). It is. 5A is an exploded view of a first header tank and a connecting member applied to a heat exchanger according to an embodiment of the present invention, FIG. 5A is a side view, and FIG. It is a figure expressed as a top surface. 6(a) is a side view, and FIG. 6(b) is a surface to which the tubes are connected; FIG. It is a figure expressed as a top surface.
  • FIGS. 1 and 2 show a schematic configuration of a heat exchanger according to this embodiment, with FIG. 1 showing a front view and FIG. 2 showing a side view.
  • the heat exchanger 1 includes two heat exchange units 10 arranged along the air flow direction (left-right direction in FIG. 2) and connected by a connecting member 100, which will be described later. , a port 70 having a communication hole that serves as an inlet and outlet for refrigerant.
  • heat exchange units 10A and 10B when two heat exchange units 10 are shown separately, they will be referred to as heat exchange units 10A and 10B, and for convenience of explanation, among the communication holes of the ports 70, the communication holes on the heat exchange unit 10A side will be referred to as heat exchange units 10A and 10B.
  • the explanation will be made assuming that the inlet 71 and the communication hole on the side of the heat exchange unit 10B are the refrigerant outlet 72.
  • the heat exchange unit 10 is provided between a cylindrical first header tank 20 and a second header tank 30 that are arranged in parallel, and is arranged perpendicularly to the air flow direction. a plurality of tubes 40 arranged at predetermined intervals in a direction in which the tubes 40 are arranged, heat transfer fins 50 provided on both outer sides of the plurality of tubes 40 in the arrangement direction, and covering the heat transfer fins 50 from the outside in the arrangement direction of the tubes 40.
  • a pair of side plates 60 are provided between a cylindrical first header tank 20 and a second header tank 30 that are arranged in parallel, and is arranged perpendicularly to the air flow direction.
  • a plurality of tubes 40 arranged at predetermined intervals in a direction in which the tubes 40 are arranged, heat transfer fins 50 provided on both outer sides of the plurality of tubes 40 in the arrangement direction, and covering the heat transfer fins 50 from the outside in the arrangement direction of the tubes 40.
  • first header tank 20 and the second header tank 30 are located at both longitudinal ends of the plurality of tubes 40, one end of the plurality of tubes 40 communicates with the first header tank 20, and the second header tank The other ends of the plurality of tubes 40 communicate with the tube 30.
  • FIG. 3 is a perspective view of the first header tank 20 and the connecting member 100, with the surface to which the tube 40 is connected facing upward.
  • the first header tank 20 has a plurality of tubes 40 fitted into a part of its outer circumferential surface to connect the tubes 40 and the first header tank 20.
  • Slits 21 are formed at predetermined intervals along the axial direction. The slits 21 are provided to correspond to the arrangement interval of the tubes 40.
  • a partition member 22 that partitions the internal space of the first header tank 20 is provided at a longitudinally intermediate portion of the first header tank 20 (see FIG. 2).
  • a plurality of communication holes 25 for communicating between the first header tanks 20 when they are connected are provided in the axial direction. It is located along the Therefore, the communication holes 25 of the first header tank 20A of the heat exchange unit 10A are provided on the surface facing the first header tank 20B of the heat exchange unit 10B, and the communication holes 25 of the first header tank 20B of the heat exchange unit 10B are provided on the surface facing the first header tank 20B of the heat exchange unit 10B. , is provided on the surface of the heat exchange unit 10A facing the first header tank 20A.
  • the plurality of communication holes 25 are provided at predetermined intervals from each other so as to correspond to the arrangement interval of the tubes 40.
  • the intervals between the communicating holes 25 can be set as appropriate. Note that both ends of the first header tank 20 in the axial direction are closed by providing caps (not shown).
  • the second header tank 30 has a plurality of slits in a part of its outer peripheral surface, into which the other ends of the plurality of tubes 40 are fitted, and for communicating the tubes 40 and the second header tank 30. 31 are formed at predetermined intervals along the axial direction. The slits 31 are provided to correspond to the arrangement interval of the tubes 40. Both ends of the second header tank 30 in the axial direction are closed by providing caps (not shown). Note that the second header tank 30 is not provided with a partition wall or a communication hole.
  • the tube 40 is made of a member with a flat cross section, and includes therein a plurality of refrigerant channels 41 arranged along the air flow direction.
  • the heat transfer fins 50 are arranged between the tube 40 and the side plate 60, and form an air flow path in the air flow direction.
  • Such heat exchange units 10A, 10B are arranged so that the communication holes 25 of the first header tanks 20 face each other, and are connected by a connecting member 100 inserted between the first header tanks 20, thereby exchanging heat.
  • An exchanger 1 is configured.
  • the connecting member 100 has a concave surface 101 formed along the longitudinal direction on both sides of the plate-like member, and a concave surface 101 provided in the concave surface 101 that corresponds to the communication hole 25 of the first header tank 20. It has a plurality of through holes 102 provided in this manner, and protrusions 103 and 104 provided in line with the plurality of through holes 102.
  • the concave surface 101 is formed such that the thickness of the connecting member 100 increases from the center in the transverse direction to both end sides, and is a concave curved surface having approximately the same curvature as the cylindrical surface of the outer periphery of the first header tank 20. be. Therefore, when the first header tanks 20 are connected to each other by the connecting member 100, the concave surface 101 of the connecting member 100 and the outer periphery of the first header tank 20 are in contact with each other without a gap.
  • a plurality of through holes 102 are formed in the concave surface 101 along the longitudinal direction of the connecting member 100 at predetermined intervals so as to correspond to the communication holes 25 provided in the first header tank 20.
  • At least one protrusion 103 is provided on one side of the connecting member 100 in line with the through hole 102. Further, at least one protrusion 104 is provided on the other side of the connecting member in line with the through hole 102 .
  • the protrusions 103 and 104 protrude in a cylindrical shape from the concave surface 101 so as to fit into the communication hole 25 of the first header tank 20 .
  • the protrusions 103 and 104 protrude from the surface of the connecting member 100 in opposite directions.
  • the protrusion 103 may be provided with an intra-protrusion communication hole 105 that penetrates inside the protrusion.
  • the protrusion 104 may also be provided with an intra-protrusion communication hole.
  • the protrusion 103 is arranged at one longitudinal end of the connecting member 100 in line with the communication hole 25; however, the protrusion 103 does not necessarily have to be located at the end; It can be placed instead.
  • the protrusion 104 is arranged at the other end of the connecting member 100 in the longitudinal direction, in line with the communication hole 25, but the protrusion 104 does not necessarily have to be located at the end; It can be placed as follows.
  • the outer diameters of the protrusions 103 and 104 can be made smaller than the diameter of the through hole 102.
  • a fitting hole corresponding to the position and outer diameter of the projection 103 and the projection 104 is formed in place of the through hole 102.
  • connection member 100 When assembling the heat exchanger 1 configured in this way, the connection member 100 is inserted into the communication hole 25 located at the end on the partition member 22 side in the longitudinal direction among the communication holes 25 of the first header tank 20A.
  • the protrusion 103 is fitted, and the protrusion 104 of the connecting member 100 is fitted into the communication hole 25 of the other first header tank 20B, which is located at the outer end in the longitudinal direction. (see 6).
  • a refrigerant flow path is formed by the communication hole 25 of one first header tank 20A, the through hole 102 of the connecting member 100, and the communication hole 25 of the other first header tank 20B.
  • the heat exchanger 1 is assembled with all members including the second header tank 30, tubes 40, heat transfer fins 50, side plates 60, and ports 70 in addition to the first header tank 20 and the connecting member 100. In this state, it is inserted into a heating furnace, and each member is joined by brazing. At this time, the outer peripheral surface of the first header tank 20 is clad with a brazing material, and the connecting member 100 is also brazed and joined to the first header tank 20.
  • the diameter of the through hole 102 of the connecting member 100 is formed larger than the diameter of the communication hole 25 of the first header tank 20, so that it is not in communication with the through hole 102 before being inserted into the heating furnace.
  • a step is created in the flow path formed by the hole 25.
  • the brazing filler metal clad on the outer periphery of the first header tank 20 melts and flows to the inner periphery of the through hole 102, forming a fillet.
  • the risk of refrigerant leakage can be reduced.
  • there is no step difference in the flow path formed by the through holes 102 and the communication holes 25, and the resistance when the refrigerant passes through the flow path can be reduced.
  • the connecting member 100 used in the heat exchanger 1 has a simple structure in which a concave surface 101, protrusions 103, 104, and through holes 102 are provided on both sides of a single plate-like member. be. Therefore, for example, the connecting member 100 can be formed by press working or the like on a rectangular plate material or an extruded material with concave surfaces on both sides. It is easy and can reduce component costs.
  • the connecting member 100 and the adjacent first header tanks 20A, 20B can be easily positioned by the protrusions 103, 104, making the assembly process easier. That is, the parts of the connecting member 100 can be easily processed, and the manufacturing cost of the connecting member 100 and, by extension, the heat exchanger 1 can be reduced. Furthermore, since the concave surface 101 of the connecting member 100 is a concave curved surface having the same curvature as the outer circumferential surface of the first header tanks 20A, 20B, good joining during brazing can be achieved.
  • both ends of the first header tanks 20A and 20B are each closed with a cap.
  • separate and independent caps can be provided for each of the first header tanks 20A and 20B, and a connecting cap that is integrally formed so as to close the ends of the first header tanks 20A and 20B may be provided. You can also do it.
  • connection cap When such a connection cap is provided, it is possible to restrict the movement of the adjacent first header tanks 20A, 20B in the arrangement direction, and it is possible to suppress positional deviation in the arrangement direction. Therefore, it is possible to prevent the connecting member disposed between the adjacent first header tanks 20A and 20B from coming off during the period from assembling the heat exchanger 1 to brazing it. In the heat exchanger 1, brazing can be performed while maintaining the positioning of the header tanks 20A and 20B in both the axial direction and the arrangement direction.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Le problème décrit par la présente invention est de faciliter le traitement de composants et de réduire les coûts de production d'un élément de raccordement et ainsi d'un échangeur de chaleur. La solution selon la présente invention porte sur un échangeur de chaleur (1) comprenant : une pluralité d'unités d'échange de chaleur (10) ayant une pluralité de tubes (40) et de réservoirs de collecteur (20, 30) disposés aux deux extrémités des tubes dans la direction longitudinale ; et un élément de raccordement (100) raccordant les réservoirs de collecteur d'unités d'échange de chaleur adjacentes, l'élément de raccordement comprenant un élément en forme de feuille unique et étant équipé d'une pluralité de trous traversants permettant à des réservoirs de collecteur adjacents de communiquer, une première saillie faisant saillie vers l'un des réservoirs de collecteur, et une seconde saillie faisant saillie vers l'autre réservoir de collecteur.
PCT/JP2023/005392 2022-03-22 2023-02-16 Échangeur de chaleur WO2023181726A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-045639 2022-03-22
JP2022045639A JP2023139886A (ja) 2022-03-22 2022-03-22 熱交換器

Publications (1)

Publication Number Publication Date
WO2023181726A1 true WO2023181726A1 (fr) 2023-09-28

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ID=88100501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/005392 WO2023181726A1 (fr) 2022-03-22 2023-02-16 Échangeur de chaleur

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JP (1) JP2023139886A (fr)
WO (1) WO2023181726A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11142087A (ja) * 1997-11-13 1999-05-28 Showa Alum Corp 熱交換器
JPH11325788A (ja) * 1998-03-20 1999-11-26 Zexel:Kk 熱交換器の接続構造
US20080135222A1 (en) * 2006-12-06 2008-06-12 Philippe Biver Pipe connecting structure for a heat exchanger
JP2014228240A (ja) * 2013-05-24 2014-12-08 サンデン株式会社 複式熱交換器
US20160003545A1 (en) * 2013-01-28 2016-01-07 Carrier Corporation Multiple tube bank heat exchange unit with manifold assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11142087A (ja) * 1997-11-13 1999-05-28 Showa Alum Corp 熱交換器
JPH11325788A (ja) * 1998-03-20 1999-11-26 Zexel:Kk 熱交換器の接続構造
US20080135222A1 (en) * 2006-12-06 2008-06-12 Philippe Biver Pipe connecting structure for a heat exchanger
US20160003545A1 (en) * 2013-01-28 2016-01-07 Carrier Corporation Multiple tube bank heat exchange unit with manifold assembly
JP2014228240A (ja) * 2013-05-24 2014-12-08 サンデン株式会社 複式熱交換器

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Publication number Publication date
JP2023139886A (ja) 2023-10-04

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