WO2022143393A1 - 换热器 - Google Patents

换热器 Download PDF

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Publication number
WO2022143393A1
WO2022143393A1 PCT/CN2021/140781 CN2021140781W WO2022143393A1 WO 2022143393 A1 WO2022143393 A1 WO 2022143393A1 CN 2021140781 W CN2021140781 W CN 2021140781W WO 2022143393 A1 WO2022143393 A1 WO 2022143393A1
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WO
WIPO (PCT)
Prior art keywords
header
flat tubes
flat
heat exchanger
tube
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2021/140781
Other languages
English (en)
French (fr)
Inventor
袁晶
王雷雷
张锋
杨雪梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Priority to MX2023007704A priority Critical patent/MX2023007704A/es
Priority to US18/259,672 priority patent/US20240159468A1/en
Priority to EP21914130.6A priority patent/EP4273490A4/en
Publication of WO2022143393A1 publication Critical patent/WO2022143393A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—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 the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—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 the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0243—Header boxes having a circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/08—Assemblies of conduits having different features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/02—Reinforcing means for casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/08—Reinforcing means for header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/12—Safety or protection arrangements; Arrangements for preventing malfunction for preventing overpressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling
    • F28F2270/02—Thermal insulation; Thermal decoupling by using blind conduits

Definitions

  • Embodiments of the present invention relate to a heat exchanger.
  • the heat exchanger includes headers, flat tubes, and fins alternately arranged with the flat tubes.
  • the stress of the flat tube near the end of the header is too large, which leads to the rupture of the flat tube.
  • the present invention provides a heat exchanger, which includes: a header, the header includes a header wall, the header wall has a plurality of through holes; and a plurality of flat tubes, the The plurality of flat tubes are arranged along the axial direction of the header, and the ends of the plurality of flat tubes are respectively inserted into the plurality of through holes of the header wall of the header and communicate with the header. wall connection,
  • the plurality of flat tubes include two sets of first flat tubes at the outermost side in the axial direction of the header and second flat tubes located between the two sets of first flat tubes, and the headers are included in the two first parts in the axial direction of the header corresponding to the outermost flat tubes and a second part between the two first parts, and wherein at least one set of the first flat tubes of the two sets of first flat tubes
  • the tensile strength of the tube in the axial direction of the header is greater than the tensile strength of the second flat tube in the axial direction of the header and/or at least one of the two first parts of the header
  • the tensile strength of a first portion in the axial direction of the header is greater than the tensile strength of the second portion of the header in the axial direction of the header.
  • the flat tubes include a plurality of channels, and partition walls between adjacent channels, at least one partition wall of at least one first flat tube in the at least one group of first flat tubes
  • the dimension of the partition wall in the arrangement direction of the partition wall is larger than the dimension of the partition wall of the second flat tube in the arrangement direction of the partition wall.
  • the at least one partition wall of at least one first flat tube in the at least one group of first flat tubes is a partition wall located in the middle in the width direction of the first flat tubes.
  • the plurality of partition walls of at least one first flat tube in the at least one group of first flat tubes have the same size in the arrangement direction of the partition walls.
  • At least one first flat tube of the at least one group of first flat tubes is a solid flat tube.
  • At least one first flat tube in the at least one group of first flat tubes includes a plurality of sub-flat tubes, the plurality of sub-flat tubes being spaced apart in the width direction of the flat tubes and being connected to the
  • the through hole of the header wall of the header corresponding to the at least one first flat tube includes a plurality of sub-through holes, the plurality of sub-through holes are spaced apart in the circumferential direction of the header, and the plurality of sub-flats The ends of the pipes are respectively inserted into the plurality of sub-through holes and connected with the wall of the collecting pipe.
  • adjacent sub-flat tubes among the plurality of sub-flat tubes of at least one first flat tube in the at least one group of first flat tubes are connected by a connecting portion, and the plurality of sub-flat tubes are connected by a connecting portion. It is integrally formed with the connecting part.
  • At least one first flat tube in the at least one group of first flat tubes includes two sub-flat tubes, and the header of the header corresponding to the at least one first flat tube
  • the through hole of the pipe wall includes two sub through holes.
  • the through holes of the header wall of the header corresponding to at least one first flat tube in the at least one group of the first flat tubes are in the circumferential direction of the header.
  • the size is smaller than the size of the through hole of the header wall of the header corresponding to the second flat tube in the circumferential direction of the header.
  • the communication between the header walls of the headers corresponding to the at least one first flat tube in the at least one group of the first flat tubes The holes are inclined with respect to the axial direction of the header.
  • the communication between the header walls of the headers corresponding to the at least one first flat tube in the at least one group of the first flat tubes The holes have a curvilinear shape.
  • the communication between the header walls of the headers corresponding to the at least one first flat tube in the at least one group of the first flat tubes are parallel to each other.
  • each of the two groups of first flat tubes includes one or more first flat tubes.
  • the burst strength of the heat exchanger can be improved.
  • FIG. 1 is a schematic front view of a heat exchanger according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a first flat tube of a heat exchanger according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a second flat tube of a heat exchanger according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a first flat tube of a heat exchanger according to another embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a first flat tube of a heat exchanger according to yet another embodiment of the present invention.
  • FIG. 6 is a schematic perspective view of a heat exchanger according to another embodiment of the present invention.
  • Figure 7 is a side view of the header of the heat exchanger shown in Figure 6;
  • FIG. 8 is a schematic perspective view of the first flat tube of the heat exchanger shown in FIG. 6;
  • Figure 9 is a schematic perspective view of a first flat tube according to one embodiment of the present invention for the heat exchanger shown in Figure 6;
  • FIG. 10 is a schematic perspective view of a heat exchanger according to yet another embodiment of the present invention.
  • Figure 11 is a side view of the header of the heat exchanger shown in Figure 10;
  • FIG. 12 is a side view of a header of a heat exchanger according to a further embodiment of the present invention.
  • FIG. 13 is a side view of a header of a heat exchanger according to a further embodiment of the present invention.
  • a heat exchanger 100 includes a header 1 including a header wall 10 having a plurality of through holes 11; and a plurality of flat tubes 2.
  • the plurality of flat tubes 2 are arranged along the axial direction of the header 1 , and the ends 21 of the plurality of flat tubes 2 are respectively inserted into the plurality of through holes 11 of the header wall 10 of the header 1 . in and connected to the header wall 10.
  • the plurality of flat tubes 2 include two sets of first flat tubes 2A on the outermost side in the axial direction of the header 1 and second flat tubes 2B between the two sets of first flat tubes 2A.
  • the flow tube 1 includes two first portions 12A corresponding to the outermost flat tubes 2 in the axial direction of the header 1 and a second portion 12B between the two first portions 12A.
  • the tensile strength of at least one group of the first flat tubes 2A in the axial direction of the header 1 is greater than the tensile strength of the second flat tubes 2B in the axial direction of the header 1
  • the strength and/or the tensile strength of at least one of the two first portions 12A of the header 1 in the axial direction of the header 1 is greater than that of the second portion 12B of the header 1 at Tensile strength in the axial direction of the header 1 .
  • the heat exchanger 100 may further include fins 3 alternately arranged with the flat tubes 2 .
  • the header 1 also includes an end cap 13 .
  • Each of the two sets of first flat tubes 12A includes one or more first flat tubes 12A.
  • the plurality of first flat tubes 12A are arranged in sequence or arranged one after another.
  • each set of first flat tubes 12A includes one first flat tube 12A.
  • FIG. 2 is a cross-sectional view of a first flat tube of a heat exchanger according to an embodiment of the present invention
  • FIG. 3 is a cross-sectional view of a second flat tube of the heat exchanger according to an embodiment of the present invention.
  • the flat tube 2 includes a plurality of channels 20, and partition walls 22 between adjacent channels 20, at least one set of the first flat tubes 2A
  • the dimension of the at least one partition wall 22 of the at least one first flat tube 2A in the arrangement direction of the partition walls 22 is larger than the dimension of the partition wall 22 of the second flat tube 2B in the arrangement direction of the partition walls 22 .
  • the dimension of at least one partition wall 22 of the first flat tube 2A in the arrangement direction of the partition walls 22 is larger than the dimension of the partition wall 22 of the second flat tube 2B in the arrangement direction of the partition walls 22 .
  • the arrangement direction of the partition walls 22 is also the width direction of the flat tubes 2 .
  • the dimensions of the plurality of partition walls 22 of at least one first flat tube 2A in the at least one group of first flat tubes 2A in the arrangement direction of the partition walls 22 may be the same or different.
  • the dimensions of the partition walls 22 in the arrangement direction of the partition walls 22 may be the same or different.
  • the at least one partition wall 22 of at least one first flat tube 2A in at least one group of first flat tubes 2A is located in the middle in the width direction of the first flat tube 2A of a partition wall 22.
  • the at least one partition wall 22 of the first flat tube 2A is one partition wall 22 located in the middle in the width direction of the first flat tube 2A.
  • At least one first flat tube 2A in at least one group of first flat tubes 2A is a solid flat tube 2 , for example, the first flat tube 2A is a solid flat tube 2 , that is, there is no channel 20.
  • At least one first flat tube 2A in at least one group of first flat tubes 2A includes a plurality of sub-flat tubes 2S, and the plurality of sub-flat tubes 2S are located in the flat tube 2 spaced apart in the width direction, and the through holes 11 of the header wall 10 of the header 1 corresponding to the at least one first flat tube 2A include a plurality of sub-through holes 11S, the plurality of sub-through holes 11S Spaced apart in the circumferential direction of the header 1 , ends of the plurality of sub-flat tubes are respectively inserted into the plurality of sub-through holes and connected to the header wall.
  • the first flat tube 2A includes a plurality of sub-flat tubes 2S that are spaced apart in the width direction of the flat tubes 2, and the headers of the headers 1 corresponding to the first flat tube 2A
  • the through hole 11 of the pipe wall 10 includes a plurality of sub through holes 11S spaced apart in the circumferential direction of the header 1 .
  • adjacent sub-flat tubes 2S among the plurality of sub-flat tubes 2S of at least one first flat tube 2A in the at least one group of first flat tubes 2A are connected by the connecting portion 23 , so The plurality of sub-flat tubes 2S are integrally formed with the connecting portion 23 .
  • adjacent sub-flat tubes 2S among the plurality of sub-flat tubes 2S of the first flat tube 2A are connected by a connecting portion 23, the plurality of sub-flat tubes 2S are integrally formed with the connecting portion 23, and the connecting portion may be a connecting piece.
  • at least one first flat tube 2A in the at least one group of first flat tubes 2A includes two sub-flat tubes 2S, and the header tube 1 corresponding to the at least one first flat tube 2A has two sub-flat tubes 2S.
  • the through hole 11 of the header wall 10 includes two sub through holes 11S.
  • the first flat tube 2A includes two sub-flat tubes 2S, and the through hole 11 of the header wall 10 of the header 1 corresponding to the first flat tube 2A includes two sub-through holes 11S.
  • the current collecting of the collecting pipe 1 corresponding to at least one first flat tube 2A in the at least one group of first flat tubes 2A The size of the through hole 11 of the tube wall 10 in the circumferential direction of the header 1 is smaller than that of the second flat tube 2B corresponding to the second flat tube 2B. Dimensions in the circumferential direction
  • the width of the first flat tube 2A may be smaller than the width of the second flat tube 2B, or only the width of the end of the first flat tube 2A may be smaller than that of the second flat tube 2A.
  • the width of the tube 2B is smaller than that of other parts of the first flat tube 2A, and the other parts of the first flat tube 2A have the same width as the second flat tube 2B.
  • the header corresponding to at least one first flat tube 2A in the at least one group of first flat tubes 2A when viewed from the axial direction of the flat tubes 2 The through holes 11 of the header wall 10 of the header 1 and the through holes 11 of the header wall 10 of the header 1 corresponding to the second flat tubes 2B are parallel to each other.
  • the current collection of the headers 1 corresponding to at least one first flat tube 2A in the at least one group of first flat tubes 2A has a curvilinear shape, for example, the first flat tube 2A has a curvilinear shape in a cross section perpendicular to the axial direction of the flat tube 2 , or the first flat tube 2A has a curvilinear shape in the axial direction of the flat tube 2 .
  • the first flat tube 2A has a curvilinear shape in a cross section perpendicular to the axial direction of the flat tube 2
  • the first flat tube 2A has a curvilinear shape in the axial direction of the flat tube 2 .
  • the end portion of the first flat tube 2A has a curved shape, and the other parts of the first flat tube 2A have the same shape as the second flat tube 2B.
  • the collection of the headers 1 corresponding to at least one first flat tube 2A in the at least one group of first flat tubes 2A The through hole 11 of the flow tube wall 10 is inclined with respect to the axial direction of the header 1 , for example, in a cross section perpendicular to the axial direction of the flat tube 2 , the first flat tube 2A is relative to the axial direction of the header 1 . Inclined, or only the ends of the first flat tubes 2A are inclined with respect to the axial direction of the header 1, while the other parts of the first flat tubes 2A are parallel to the second flat tubes 2B.
  • At least one first flat tube 2A in at least one group of first flat tubes 2A in the two groups of first flat tubes 2A may be one first flat tube 2A or a plurality of first flat tubes 2A.
  • the thickness of the partition wall of the flat tube is increased, so that the flat tube can be pulled when the through hole of the header is under force, thereby preventing the through hole from becoming larger. Furthermore, by reducing the length in the axial direction of the through holes of the headers, deformation of the ends of the headers can be alleviated, preventing the through holes from becoming larger. According to embodiments of the present invention, the axial strength of the header ends is enhanced, thereby increasing the final pressure of the burst.
  • the failure of the flat tubes at both ends of the header in the strength burst test can be improved, and the burst pressure is increased. While guaranteeing that performance and cost remain virtually unchanged.

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

Abstract

本发明公开了一种换热器。该换热器包括：包括集流管壁的集流管和多个扁管。多个扁管包括在集流管的轴向方向上处于最外侧的两组第一扁管以及处于两组第一扁管之间的第二扁管，集流管包括在集流管的轴向方向上与两组第一扁管对应的两个第一部分以及在两个第一部分之间的第二部分。两组第一扁管中的至少一组第一扁管在集流管的轴向方向上的抗拉强度大于第二扁管在集流管的轴向方向上的抗拉强度和/或集流管的两个第一部分中的至少一个第一部分在集流管的轴向方向上的抗拉强度大于集流管的第二部分在集流管的轴向方向上的抗拉强度。采用根据本发明的换热器，可以提高换热器的爆破强度。

Description

换热器 技术领域
本发明的实施例涉及一种换热器。
背景技术
换热器包括集流管、扁管以及与扁管交替排列的翅片。微通道强度爆破试验中，由于集流管端部轴向向外的膨胀变形，集流管端部附近扁管应力过大导致扁管破裂。
发明内容
本发明的目的是提供一种换热器，由此例如可以提高换热器的爆破强度。
本发明提供了一种换热器，该换热器包括：集流管，所述集流管包括集流管壁，所述集流管壁具有多个通孔；以及多个扁管，所述多个扁管沿集流管的轴向方向排列，并且所述多个扁管的端部分别插入所述集流管的集流管壁的多个通孔中并与所述集流管壁连接，
其中所述多个扁管包括在集流管的轴向方向上处于最外侧的两组第一扁管以及处于两组第一扁管之间的第二扁管，所述集流管包括在集流管的轴向方向上与最外侧扁管对应的两个第一部分以及在两个第一部分之间的第二部分，并且其中所述两组第一扁管中的至少一组第一扁管在集流管的轴向方向上的抗拉强度大于第二扁管在集流管的轴向方向上的抗拉强度和/或所述集流管的所述两个第一部分中的至少一个第一部分在集流管的轴向方向上的抗拉强度大于所述集流管的第二部分在集流管的轴向方向上的抗拉强度。
根据本发明的实施例，所述扁管包括多个通道，以及在相邻的通道之间的间隔壁，所述至少一组第一扁管中的至少一个第一扁管的至少一个间隔壁的在间隔壁的排列方向上的尺寸大于第二扁管的间隔壁的在间隔壁的排列方向上的尺寸。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第 一扁管的所述至少一个间隔壁是在第一扁管的宽度方向上位于中间的一个间隔壁。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第一扁管的多个间隔壁的在间隔壁的排列方向上的尺寸相同。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第一扁管是实心扁管。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第一扁管包括多个子扁管，所述多个子扁管在扁管的宽度方向上间隔开，并且与所述至少一个第一扁管对应的所述集流管的集流管壁的通孔包括多个子通孔，所述多个子通孔在集流管的周向方向上间隔开，所述多个子扁管的端部分别插入所述多个子通孔中并与所述集流管壁连接。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第一扁管的所述多个子扁管中的相邻的子扁管通过连接部连接，所述多个子扁管与连接部一体成型。
根据本发明的实施例，所述至少一组第一扁管中的至少一个第一扁管包括两个子扁管，并且与所述至少一个第一扁管对应的所述集流管的集流管壁的通孔包括两个子通孔。
根据本发明的实施例，与所述至少一组第一扁管中的至少一个第一扁管对应的所述集流管的集流管壁的通孔在集流管的周向方向上的尺寸小于与第二扁管对应的所述集流管的集流管壁的通孔在集流管的周向方向上的尺寸。
根据本发明的实施例，从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至少一个第一扁管对应的所述集流管的集流管壁的通孔相对于集流管的轴向方向倾斜。
根据本发明的实施例，从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至少一个第一扁管对应的所述集流管的集流管壁的通孔具有曲线状的形状。
根据本发明的实施例，从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至少一个第一扁管对应的所述集流管的集流管 壁的通孔和与第二扁管对应的所述集流管的集流管壁的通孔相互平行。
根据本发明的实施例，两组第一扁管中的每一组第一扁管包括一个或多个第一扁管。
采用根据本发明的实施例的换热器，例如，可以提高换热器的爆破强度。
附图说明
图1为根据本发明的一个实施例的换热器的示意主视图；
图2为根据本发明的一个实施例的换热器的第一扁管的截面图；
图3为根据本发明的实施例的换热器的第二扁管的截面图；
图4为根据本发明的另一个实施例的换热器的第一扁管的截面图；
图5为根据本发明的再一个实施例的换热器的第一扁管的截面图；
图6为根据本发明的另一个实施例的换热器的示意透视图；
图7为图6所示的换热器的集流管的侧视图；
图8为图6所示的换热器的第一扁管的示意透视图；
图9为用于图6所示的换热器的根据本发明的一个实施例的第一扁管的示意透视图；
图10为根据本发明的再一个实施例的换热器的示意透视图；
图11为图10所示的换热器的集流管的侧视图；
图12为根据本发明的进一步的实施例的换热器的集流管的侧视图；以及
图13为根据本发明的更进一步的实施例的换热器的集流管的侧视图。
具体实施方式
下面结合附图及具体实施方式对本发明做进一步说明。
参见图1至图13，根据本发明的实施例的换热器100包括：集 流管1，所述集流管1包括集流管壁10，所述集流管壁10具有多个通孔11；以及多个扁管2。所述多个扁管2沿集流管1的轴向方向排列，并且所述多个扁管2的端部21分别插入所述集流管1的集流管壁10的多个通孔11中并与所述集流管壁10连接。所述多个扁管2包括在集流管1的轴向方向上处于最外侧的两组第一扁管2A以及处于两组第一扁管2A之间的第二扁管2B，所述集流管1包括在集流管1的轴向方向上与最外侧扁管2对应的两个第一部分12A以及在两个第一部分12A之间的第二部分12B。两组第一扁管2A中的至少一组第一扁管2A在集流管1的轴向方向上的抗拉强度大于第二扁管2B在集流管1的轴向方向上的抗拉强度和/或所述集流管1的两个第一部分12A中的至少一个第一部分12A在集流管1的轴向方向上的抗拉强度大于所述集流管1的第二部分12B在集流管1的轴向方向上的抗拉强度。该换热器100还可以包括与扁管2交替排列的翅片3。所述集流管1还包括端盖13。两组第一扁管12A中的每一组第一扁管12A包括一个或多个第一扁管12A。每一组第一扁管12A包括多个第一扁管12A的情况下，多个第一扁管12A依次排列或一个接一个地排列。在图中所示的实施例中，每一组第一扁管12A包括一个第一扁管12A。
图2为根据本发明的一个实施例的换热器的第一扁管的截面图，并且图3为根据本发明的实施例的换热器的第二扁管的截面图。
在本发明的实施例中，参见图2和图3，所述扁管2包括多个通道20，以及在相邻的通道20之间的间隔壁22，至少一组第一扁管2A中的至少一个第一扁管2A的至少一个间隔壁22的在间隔壁22的排列方向上的尺寸大于第二扁管2B的间隔壁22的在间隔壁22的排列方向上的尺寸。例如，第一扁管2A的至少一个间隔壁22的在间隔壁22的排列方向上的尺寸大于第二扁管2B的间隔壁22的在间隔壁22的排列方向上的尺寸。间隔壁22的排列方向也是扁管2的宽度方向。至少一组第一扁管2A中的至少一个第一扁管2A的多个间隔壁22的在间隔壁22的排列方向上的尺寸可以相同或不同，例如，第一扁管2A的多个间隔壁22的在间隔壁22的排列方向上的尺寸可 以相同或不同。在本发明的一个示例中，参见图4，至少一组第一扁管2A中的至少一个第一扁管2A的所述至少一个间隔壁22是在第一扁管2A的宽度方向上位于中间的一个间隔壁22。例如，第一扁管2A的所述至少一个间隔壁22是在第一扁管2A的宽度方向上位于中间的一个间隔壁22。
在本发明的实施例中，参见图5，至少一组第一扁管2A中的至少一个第一扁管2A是实心扁管2，例如第一扁管2A是实心扁管2，即没有通道20。
在本发明的实施例中，参见图6至图9，至少一组第一扁管2A中的至少一个第一扁管2A包括多个子扁管2S，所述多个子扁管2S在扁管2的宽度方向上间隔开，并且与所述至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11包括多个子通孔11S，所述多个子通孔11S在集流管1的周向方向上间隔开，所述多个子扁管的端部分别插入所述多个子通孔中并与所述集流管壁连接。例如，第一扁管2A包括多个子扁管2S，所述多个子扁管2S在扁管2的宽度方向上间隔开，并且与第一扁管2A对应的所述集流管1的集流管壁10的通孔11包括多个子通孔11S，所述多个子通孔11S在集流管1的周向方向上间隔开。在本发明的示例中，参见图9，至少一组第一扁管2A中的至少一个第一扁管2A的多个子扁管2S中的相邻的子扁管2S通过连接部23连接，所述多个子扁管2S与连接部23一体成型。例如，第一扁管2A的多个子扁管2S中的相邻的子扁管2S通过连接部23连接，所述多个子扁管2S与连接部23一体成型，连接部可以是连接片。在图示的实施例中，至少一组第一扁管2A中的至少一个第一扁管2A包括两个子扁管2S，并且与至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11包括两个子通孔11S。例如，第一扁管2A包括两个子扁管2S，并且与第一扁管2A对应的所述集流管1的集流管壁10的通孔11包括两个子通孔11S。
在本发明的实施例中，参见图10、图11、图12、图13，与至少一组第一扁管2A中的至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11在集流管1的周向方向上的尺寸小于与第二 扁管2B对应的所述集流管1的集流管壁10的通孔11在集流管1的周向方向上的尺寸
在本发明的实施例中，参见图10、图11，第一扁管2A的宽度可以小于第二扁管2B的宽度，或者，仅仅第一扁管2A的端部的宽度可以小于第二扁管2B的宽度，以及小于第一扁管2A的其它部分的宽度，而第一扁管2A的其它部分与第二扁管2B具有相同的宽度。
在本发明的实施例中，参见图10和图11，从扁管2的轴向方向观看时与至少一组第一扁管2A中的至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11和与第二扁管2B对应的所述集流管1的集流管壁10的通孔11相互平行。
在本发明的实施例中，参见图12从扁管2的轴向方向观看时与至少一组第一扁管2A中的至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11具有曲线状的形状，例如，在与扁管2的轴向方向垂直的截面中，第一扁管2A具有曲线状的形状，或者在与扁管2的轴向方向垂直的截面中，仅仅第一扁管2A的端部具有曲线状的形状，而第一扁管2A的其它部分与第二扁管2B的形状相同。
在本发明的实施例中，参见图13，从扁管2的轴向方向观看时与至少一组第一扁管2A中的至少一个第一扁管2A对应的所述集流管1的集流管壁10的通孔11相对于集流管1的轴向方向倾斜，例如在与扁管2的轴向方向垂直的截面中，第一扁管2A相对于集流管1的轴向方向倾斜，或者仅仅第一扁管2A的端部相对于集流管1的轴向方向倾斜，而第一扁管2A的其它部分与第二扁管2B平行。
根据本发明的实施例，两组第一扁管2A中的至少一组第一扁管2A中的至少一个第一扁管2A可以是一个第一扁管2A或多个第一扁管2A。
根据本发明的实施例，增加扁管的间隔壁的厚度，从而在集流管的通孔受力时能拉住扁管，防止通孔变大。此外，通过降低集流管的通孔的轴向方向上的长度，可以缓解集流管端部变形，防止通孔变大。根据本发明的实施例，增强了集流管端部的轴向强度，从而提高 了爆破的最终压力。
根据本发明的实施例，可改善集流管两端的扁管在强度爆破试验中的失效，提高了爆破压力。同时保证性能和成本几乎保持不变。
尽管描述了上述实施例，但是上述实施例中的一些特征可以进行组合形成新的实施例。

Claims (13)

  1. 一种换热器，包括：
    集流管，所述集流管包括集流管壁，所述集流管壁具有多个通孔；以及
    多个扁管，所述多个扁管沿集流管的轴向方向排列，并且所述多个扁管的端部分别插入所述集流管的集流管壁的多个通孔中并与所述集流管壁连接，
    其中所述多个扁管包括在集流管的轴向方向上处于最外侧的两组第一扁管以及处于两组第一扁管之间的第二扁管，所述集流管包括在集流管的轴向方向上与最外侧扁管对应的两个第一部分以及在两个第一部分之间的第二部分，并且
    其中所述两组第一扁管中的至少一组第一扁管在集流管的轴向方向上的抗拉强度大于第二扁管在集流管的轴向方向上的抗拉强度和/或所述集流管的所述两个第一部分中的至少一个第一部分在集流管的轴向方向上的抗拉强度大于所述集流管的第二部分在集流管的轴向方向上的抗拉强度。
  2. 根据权利要求1所述的换热器，其中：
    所述扁管包括多个通道，以及在相邻的通道之间的间隔壁，所述至少一组第一扁管中的至少一个第一扁管的至少一个间隔壁的在间隔壁的排列方向上的尺寸大于第二扁管的间隔壁的在间隔壁的排列方向上的尺寸。
  3. 根据权利要求2所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管的所述至少一个间隔壁是在第一扁管的宽度方向上位于中间的一个间隔壁。
  4. 根据权利要求2所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管的多个间隔壁的 在间隔壁的排列方向上的尺寸相同。
  5. 根据权利要求1所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管是实心扁管。
  6. 根据权利要求1所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管包括多个子扁管，所述多个子扁管在扁管的宽度方向上间隔开，并且与所述至少一个第一扁管对应的所述集流管的集流管壁的通孔包括多个子通孔，所述多个子通孔在集流管的周向方向上间隔开，所述多个子扁管的端部分别插入所述多个子通孔中并与所述集流管壁连接。
  7. 根据权利要求6所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管的所述多个子扁管中的相邻的子扁管通过连接部连接，所述多个子扁管与连接部一体成型。
  8. 根据权利要求6所述的换热器，其中：
    所述至少一组第一扁管中的至少一个第一扁管包括两个子扁管，并且与所述至少一个第一扁管对应的所述集流管的集流管壁的通孔包括两个子通孔。
  9. 根据权利要求1所述的换热器，其中：
    与所述至少一组第一扁管中的至少一个第一扁管对应的所述集流管的集流管壁的通孔在集流管的周向方向上的尺寸小于与第二扁管对应的所述集流管的集流管壁的通孔在集流管的周向方向上的尺寸。
  10. 根据权利要求9所述的换热器，其中：
    从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至 少一个第一扁管对应的所述集流管的集流管壁的通孔相对于集流管的轴向方向倾斜。
  11. 根据权利要求9所述的换热器，其中：
    从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至少一个第一扁管对应的所述集流管的集流管壁的通孔具有曲线状的形状。
  12. 根据权利要求9所述的换热器，其中：
    从扁管的轴向方向观看时与所述至少一组第一扁管中的所述至少一个第一扁管对应的所述集流管的集流管壁的通孔和与第二扁管对应的所述集流管的集流管壁的通孔相互平行。
  13. 根据权利要求1所述的换热器，其中：
    两组第一扁管中的每一组第一扁管包括一个或多个第一扁管。
PCT/CN2021/140781 2020-12-30 2021-12-23 换热器 Ceased WO2022143393A1 (zh)

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