WO2025237376A1 - 换热器 - Google Patents

换热器

Info

Publication number
WO2025237376A1
WO2025237376A1 PCT/CN2025/095150 CN2025095150W WO2025237376A1 WO 2025237376 A1 WO2025237376 A1 WO 2025237376A1 CN 2025095150 W CN2025095150 W CN 2025095150W WO 2025237376 A1 WO2025237376 A1 WO 2025237376A1
Authority
WO
WIPO (PCT)
Prior art keywords
flat tube
groove
limiting part
heat exchanger
tube groove
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.)
Pending
Application number
PCT/CN2025/095150
Other languages
English (en)
French (fr)
Inventor
朱丽星
丁二刚
吴振鑫
朴勇
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.)
Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
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 Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Publication of WO2025237376A1 publication Critical patent/WO2025237376A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • 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

Definitions

  • This application relates to the field of heat exchange technology, and in particular to a heat exchanger.
  • microchannel heat exchangers often include fins and flat tubes.
  • Flat tube grooves are formed on the fins, and the flat tubes are inserted into the flat tube grooves and welded and fixed to the fins.
  • a heat exchanger is provided.
  • the fins include a fin body and a first limiting portion.
  • the fin body has a slot with an opening on one side of the width of the fin body.
  • the slot includes a flat tube groove for installing the flat tube and a guide groove communicating with the flat tube groove.
  • the guide groove is located on one side of the width of the fin body, and its thickness gradually decreases from the guide groove to the flat tube groove.
  • the first limiting portion is located at one end of the flat tube groove near the guide groove, and the first limiting portion protrudes from the inner wall of the flat tube groove and is connected to the fin body.
  • the flat tube is inserted into the flat tube groove, and one end of the first limiting portion abuts against the surface of the flat tube and is interference-fitted with the flat tube.
  • the flat tube includes a straight segment and two arc segments connected to each other.
  • the straight segment is located between the two arc segments.
  • the thickness of the arc segments gradually decreases.
  • One end of the first limiting portion abuts against the surface of the arc segment and is interference-fitted with the arc segment.
  • the number of the first limiting part is one, and the first limiting part is disposed on the side wall of the flat tube groove located below along the direction of gravity.
  • the fin further includes a second limiting portion, the first limiting portion and the second limiting portion being disposed opposite to each other on the two side walls of the flat tube groove, and the first limiting portion and the second limiting portion being disposed along the thickness direction of the flat tube groove.
  • the thickness of the flat tube is defined as H01
  • the thickness of the flat tube groove is defined as H02.
  • the thickness H01 of the flat tube and the thickness H02 of the flat tube groove satisfy the following relationship: 0 ⁇ H02-H01 ⁇ 0.2mm.
  • the fin further includes a second limiting portion.
  • the first limiting portion and the second limiting portion are disposed opposite to each other on the two side walls of the flat tube groove, and the first limiting portion and the second limiting portion are disposed along the thickness direction of the flat tube groove.
  • the height of the first limiting portion protruding from the side wall of the flat tube groove is defined as W01
  • the height of the second limiting portion protruding from the side wall of the flat tube groove is defined as W02.
  • the heights W01 and W02 of the first limiting portion protruding from the side wall of the flat tube groove satisfy the following relationship: 0.03mm ⁇ W01+W02 ⁇ 0.25mm.
  • the first limiting part includes a first side and a second side.
  • the first side is disposed on the side of the second side near the guide groove and connected to the second side.
  • the included angle formed by the first side relative to the sidewall of the flat tube groove is defined as ⁇
  • the included angle formed by the second side relative to the sidewall of the flat tube groove is defined as b.
  • the included angle ⁇ formed by the first side relative to the sidewall of the flat tube groove is smaller than the included angle b formed by the second side relative to the sidewall of the flat tube groove.
  • the second limiting part includes a third side and a fourth side.
  • the third side is disposed on the side of the fourth side near the guide groove and connected to the fourth side.
  • the included angle formed by the third side relative to the sidewall of the flat tube groove is defined as c
  • the included angle formed by the fourth side relative to the sidewall of the flat tube groove is defined as d.
  • the included angle c formed by the third side relative to the sidewall of the flat tube groove is smaller than the included angle d formed by the fourth side relative to the sidewall of the flat tube groove.
  • the fin further includes a third limiting portion, which is disposed on the side wall of the flat tube groove along its circumference; the surface of the flat tube is provided with a mating portion, and the third limiting portion and the mating portion are engaged.
  • one of the third limiting portion and the mating portion is configured as a protrusion and the other as a groove, with the protrusion being engaged within the groove.
  • the mating parts are provided in multiples, and the multiple mating parts are spaced apart along the width direction of the flat tube or arranged opposite to each other along the thickness direction of the flat tube; wherein, at least some of the grooves are arranged in a one-to-one correspondence with the protrusions.
  • the thickness of the flat tube is defined as H01
  • the thickness of the flat tube groove is defined as H02.
  • the thicknesses H01 and H02 satisfy the following relationship: 0 ⁇ H02 - H01 ⁇ 0.2 mm; wherein the height of the protrusion is defined as W11, and the depth of the groove is defined as W21.
  • the height W11 and the depth W21 satisfy the following relationship: 0.03 mm ⁇ W11 - W21 ⁇ 0.25 mm.
  • the height of the protrusion is defined as W11
  • the depth of the groove is defined as W21.
  • the height W11 of the protrusion and the depth W21 of the groove satisfy the following relationship: 0.03mm ⁇ 2(W11-W21) ⁇ 0.25mm.
  • Figure 1 is a schematic diagram of the structure of a heat exchanger according to an embodiment of this application.
  • Figure 2 is a schematic diagram of the structure of a fin according to an embodiment of this application.
  • Figure 3 is a schematic diagram of the structure of the first limiting part according to an embodiment of this application.
  • FIG. 4 is a partial structural schematic diagram of a heat exchanger according to an embodiment of this application.
  • Figure 5 is a front view of a flat tube according to an embodiment provided in this application.
  • Figure 6 is a structural schematic diagram of the third limiting part according to an embodiment provided in this application.
  • Figure 7 is a front view of a flat tube according to another embodiment provided in this application.
  • Figure 8 is a structural schematic diagram of the third limiting part of another embodiment provided in this application.
  • Figure 9 is a structural schematic diagram of the third limiting part of another embodiment provided in this application.
  • Figure 10 is a schematic diagram of the structure of the second limiting part according to an embodiment of this application.
  • first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
  • a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature.
  • “multiple” means at least two, such as two, three, etc., unless otherwise explicitly specified.
  • the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium.
  • “above,” “over,” and “on top” the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.
  • “Below,” “below,” and “under” the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
  • Existing microchannel heat exchangers typically include fins and flat tubes.
  • Flat tube grooves are formed on the fins, and the flat tubes are inserted into the flat tube grooves and welded to the fins for fixation.
  • the heat exchanger 100 includes fins 10 and flat tubes 20.
  • the fins 10 include a fin body 11 and a first limiting portion 120.
  • the fin body 11 has a slot 111.
  • the slot 111 has an opening 113 on the edge of the fin body 11 on the width side.
  • the slot 111 includes a flat tube groove 1111 for installing the flat tube 20 and a guide groove 1112 communicating with the flat tube groove 1111.
  • the guide groove 1112 is located on the edge of the fin body 11 on the width side. From the guide groove 1112 to the flat tube groove 1111, the thickness of the guide groove 1112 gradually decreases.
  • the first limiting part 120 is provided at one end of the flat tube groove 1111 near the guide groove 1112, and the first limiting part 120 protrudes from the inner wall of the flat tube groove 1111 and is connected to the fin body 11.
  • the flat tube 20 is inserted into the flat tube groove 1111, and one end of the first limiting part 120 abuts against the surface of the flat tube 20 and is interference-fitted with the flat tube 20.
  • the thickness direction of the flat tube groove 1111, the thickness direction of the guide groove 1112, the thickness direction of the flat tube 20, and the thickness direction of the straight segment 21 and the arc segment 22 on the flat tube 20 described below are all the same.
  • the thickness direction is the direction of arrow X in the figure
  • the width direction of the flat tube 20 is the direction of Y in the figure.
  • the width direction of the fin body 11 is the direction of arrow A in the figure
  • the length direction of the fin body 11 is the direction of arrow B in the figure.
  • the first limiting part 120 abuts against the surface of the flat tube 20 and fits with it in an interference fit. Therefore, the first limiting part 120 can fix and engage the flat tube 20, preventing it from sliding out of the flat tube groove 1111. This ensures a firm connection between the flat tube 20 and the fins 10, which is beneficial for subsequent welding. Thus, the heat exchange effect of the heat exchanger 100 is effectively guaranteed. Furthermore, by placing the first limiting part 120 at the junction of the flat tube groove 1111 and the guide groove 1112, it is easier for the flat tube 20 to open the flat tube groove 1111 when it is inserted into the flat tube groove 1111 through the guide groove 1112. This reduces the assembly difficulty of the flat tube 20 and improves assembly efficiency. At the same time, it also reduces the deformation of the fins 10, avoiding any impact on the heat exchange effect of the fins 10.
  • the flat tube 20 includes a straight segment 21 and two arc segments 22 connected to each other.
  • the straight segment 21 is located between the two arc segments 22.
  • the thickness of the arc segment 22 gradually decreases.
  • One end of the first limiting part 120 abuts against the surface of the arc segment 22 and is interference-fitted with the arc segment 22.
  • one of the arc segments 22 serves as the insertion end. Its curved surface provides good guidance, further reducing the difficulty of inserting the flat tube 20. Furthermore, when the flat tube 20 is assembled with the flat tube groove 1111, the other arc segment 22 engages with the first limiting part 120. Since the thickness of the arc segment 22 is less than the thickness of the straight segment 21, and the surfaces of the first limiting part 120 and the arc segment 22 abut against each other, the straight segment 21 is effectively limited and stopped. This effectively prevents the flat tube 20 from detaching from the flat tube groove 1111, facilitating subsequent welding and further reducing the probability of deformation of the fin 10. Simultaneously, there is no need to machine a corresponding structure on the flat tube 20 to engage with the first limiting part 120, thus significantly reducing the processing difficulty of the flat tube 20.
  • the first limiting part 120 includes a first side surface 121 and a second side surface 122.
  • the first side surface 121 is disposed on the side of the second side surface 122 near the guide groove 1112 and connected to the second side surface 122.
  • the included angle formed by the first side surface 121 relative to the side wall of the flat tube groove 1111 is defined as ⁇
  • the included angle formed by the second side surface 122 relative to the side wall of the flat tube groove 1111 is defined as b.
  • the included angle formed by the first side surface 121 relative to the side wall of the flat tube groove 1111 is defined as ⁇ , which is smaller than the included angle formed by the second side surface 122 relative to the side wall of the flat tube groove 1111 is defined as b.
  • the second limiting part 123 includes a third side 1231 and a fourth side 1232.
  • the third side 1231 is disposed on the side of the fourth side 1232 near the guide groove 1112 and connected to the fourth side 1232.
  • the included angle formed by the third side 1231 relative to the side wall of the flat tube groove 1111 is defined as c
  • the included angle formed by the fourth side 1232 relative to the side wall of the flat tube groove 1111 is defined as d.
  • the included angle c formed by the third side relative to the side wall of the flat tube groove 1111 is smaller than the included angle d formed by the fourth side 1232 relative to the side wall of the flat tube groove 1111.
  • the included angle formed by the first side 121 is small, the flat tube 20 can be inserted into the flat tube groove 1111 more smoothly along the guide of the first side 121, further reducing the difficulty of inserting the flat tube 20.
  • the included angle formed by the second side 122 is large, which can provide greater resistance to the flat tube 20, thereby preventing the flat tube 20 from disengaging from the flat tube groove 1111, further improving the limiting reliability of the first limiting part 120.
  • connection between the first side 121 and the second side 122 is smoothly transitioned to reduce contact wear between the first limiting part 120 and the flat tube 20, thereby improving the limiting reliability of the first limiting part 120.
  • first limiting part 120 which is disposed on the lower side wall of the flat tube groove 1111 along the direction of gravity.
  • the flat tube 20 can be effectively prevented from pressing against the lower side wall of the flat tube groove 1111 under the action of gravity.
  • the gap between the flat tube 20 and the flat tube groove 1111 can be reasonably adjusted, which is beneficial to the welding of the flat tube 20 and the fins 10 and improves the heat exchange effect of the heat exchanger 100.
  • the direction of gravity is the direction of arrow G in the figure.
  • the fin 11 further includes a second limiting portion 123.
  • the first limiting portion 120 and the second limiting portion 123 are disposed opposite to each other on the two side walls of the flat tube groove 1111, and the first limiting portion 120 and the second limiting portion 123 are arranged along the thickness direction of the flat tube groove.
  • the size of the first limiting part 120 and the second limiting part 123 can be set to be the same or different, and can be reasonably set according to the actual gap requirements.
  • the thickness of the flat tube 20 is defined as H01 along its thickness direction, and the thickness of the flat tube groove 1111 is defined as H02.
  • the thicknesses H01 and H02 of the flat tube 20 and the flat tube groove 1111 satisfy the following relationship: 0 ⁇ H02 - H01 ⁇ 0.2 mm. That is, in this embodiment, the flat tube 20 and the flat tube groove 1111 are in a clearance fit.
  • the flat tube 20 and the flat tube groove 1111 are in a clearance fit.
  • the straight segment 21 of the flat tube 20 and the first limiting part 120 are in an interference fit, thereby reducing the interference contact area and reducing the risk of deformation of the fin 10.
  • the assembly difficulty can also be reduced while ensuring the heat exchange effect.
  • the thickness H01 of the flat tube 20 and the thickness H02 of the flat tube groove 1111 satisfy the following relationship: H02-H01>0.2mm, then the distance between the sidewalls of the flat tube 20 and the flat tube groove 1111 is too large, which is not conducive to the welding between the flat tube 20 and the fins 10, and is prone to welding defects, thereby affecting the heat exchange effect of the heat exchanger 100. If the thickness H01 of the flat tube 20 and the thickness H02 of the flat tube groove 1111 satisfy the following relationship: H02-H01 ⁇ 0, then the flat tube 20 and the flat tube groove 1111 have an interference fit, which greatly increases the assembly difficulty of the flat tube 20.
  • the difference between the thickness H01 of the flat tube 20 and the thickness H02 of the flat tube groove 1111, H02-H01, can be 0.05mm, 0.1mm, 0.15mm or 0.2mm, etc., and will not be listed here.
  • the height of the first limiting part 120 protruding from the side wall of the flat tube groove 1111 is defined as W01
  • the height of the second limiting part 123 protruding from the side wall of the flat tube groove 1111 is defined as W02.
  • the heights W01 of the first limiting part 120 and W02 of the second limiting part 123 protruding from the side wall of the flat tube groove 1111 satisfy the following relationship: 0.03mm ⁇ W01+W02 ⁇ 0.25mm.
  • the fixing and limiting effect of the first limiting part 120 and the second limiting part 123 on the flat tube 20 can be guaranteed, and deformation of the fin 10 can be avoided. If the total height of the first limiting part 120 and the second limiting part 123 is large, the assembly between the first limiting part 120 and the second limiting part 123 and the flat tube 20 will be tighter, causing the fin 10 to be subjected to excessive force and thus easily deformed. If the total height of the first limiting part 120 and the second limiting part 123 is small, the limiting effect of the first limiting part 120 and the second limiting part 123 on the flat tube 20 will be weakened, and there is a risk that the flat tube 20 will disengage from the flat tube groove 1111.
  • the sum of the heights of the first limiting part 120 and the second limiting part 123, W01+W02, can be 0.03mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm or 0.25mm, etc., and can be reasonably set according to actual needs.
  • the fin 10 further includes a third limiting part 13, which is disposed on the side wall of the flat tube groove 1111 along its circumference.
  • the surface of the flat tube 20 is provided with a mating part 23, and the third limiting part 13 and the mating part 23 are engaged.
  • one of the third limiting part 13 and the mating part 23 is configured as a protrusion, and the other is configured as a groove, with the protrusion engaging within the groove.
  • the structure of the third limiting part 13 and the mating part 23 is simple, reducing manufacturing difficulty.
  • the protrusion is hemispherical or elongated, and the groove is elongated. Since a flat tube 20 typically needs to mate with multiple fins 10, this embodiment reduces the difficulty of mating the protrusion and the groove by setting the groove to an elongated shape, thereby improving the assembly efficiency of the flat tube 20.
  • multiple mating portions 23 are provided, spaced apart along the width direction of the flat tube 20, or arranged opposite to each other along the thickness direction of the flat tube 20. At least some grooves correspond one-to-one with the protrusions. That is, in this embodiment, the number of grooves is greater than or equal to the number of protrusions, which not only achieves a corresponding fit between the protrusions and grooves, but also further reduces the difficulty of inserting the flat tube 20 when more grooves are provided. In addition, the engagement of multiple protrusions and grooves further improves the fixing effect of the flat tube 20 and allows for better control of the distance between the flat tube 20 and the two side walls of the flat tube groove 1111, thereby further improving the heat exchange effect.
  • the mating part 23 is configured as a protrusion
  • the third limiting part 13 is configured as a groove
  • the mating part 23 is disposed opposite to the two side walls of the flat tube 20.
  • the first limiting part 120 and the second limiting part 123 are arranged along the thickness direction of the flat tube groove.
  • the height of the protrusion is defined as W11
  • the depth of the groove is defined as W21.
  • the height W11 and the depth W21 satisfy the following relationship: 0.03mm ⁇ 2(W11-W21) ⁇ 0.25mm. This ensures the fixed limiting effect of the flat tube 20 while preventing large deformation of the fin 10.
  • the protrusions will exert a greater force on the fin 10, which may easily lead to deformation of the fin 10. If the difference between the total height of the two protrusions and the total depth of the two grooves is small, the fit between the flat tube 20 and the fin 10 will be weakened, and there is a risk that the flat tube 20 will detach from the flat tube groove 1111.
  • the height W11 of the protrusion and the depth W21 of the groove satisfy the following relationship: the value of 2(W11-W21) can be 0.03mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm or 0.25mm, etc., and can be reasonably set according to actual needs.
  • the height of the protrusion is defined as W11
  • the depth of the groove is defined as W21.
  • the height W11 and the depth W21 satisfy the following relationship: 0.03mm ⁇ W11 - W21 ⁇ 0.25mm. This ensures both the fixed limiting effect of the flat tube 20 and prevents significant deformation of the fin 10. If the difference between the height of the protrusion and the depth of the groove is large, the flat tube 20 will exert a greater force on the fin 10, which may easily lead to deformation of the fin 10. If the difference between the height of the protrusion and the depth of the groove is small, the mating effect between the flat tube 20 and the fin 10 is weakened, and there is a risk that the flat tube 20 will detach from the flat tube groove 1111.
  • the values of W11-W21 can be 0.03mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm or 0.25mm, etc., and can be set reasonably according to actual needs.
  • the mating part 23 is only provided on one side, it is similar to the arrangement of the single first limiting part 120 and can be optionally provided below along the direction of gravity.
  • the fin 10 further includes a flange 14, which surrounds the periphery of the flat tube groove 1111 and is perpendicular to the fin body 11.
  • a flange 14 which surrounds the periphery of the flat tube groove 1111 and is perpendicular to the fin body 11.
  • the connection strength between the fin 10 and the flat tube 20 can be improved.
  • the flange 14 can also be used for positioning when multiple fins 10 are arranged, which is beneficial for controlling the spacing between adjacent fins 10, thereby improving the overall assembly efficiency of the heat exchanger 100.
  • first limiting part 120 and the third limiting part 13 of this application can both extend to the flange 14 to improve the limiting reliability of the first limiting part 120 and the third limiting part 13.
  • the fin body 11 is provided with a drainage groove 112.
  • the drainage groove 112 is located on the side of the fin body 11 away from the guide groove 1112 and extends along the length direction of the fin body 11.
  • the drainage groove 112 is used to drain condensate, avoid condensate from accumulating on the fin 10, and help improve the heat exchange effect of the heat exchanger 100.

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

Abstract

一种换热器(100)。该换热器(100)包括翅片(10)和扁管(20)，翅片(10)包括翅片本体(11)和第一限位部(12)，翅片本体(11)开设有插槽(111)，插槽(111)在翅片本体(11)宽度一侧的边缘设有开口。插槽(111)包括用于安装扁管(20)的扁管槽(1111)以及与扁管槽(1111)连通的导向槽(1112)，导向槽(1112)位于翅片本体(11)宽度一侧的边缘，从导向槽(1112)至扁管槽(1111)的方向，导向槽(1112)的厚度逐渐减小。第一限位部(12)设于扁管槽(1111)靠近导向槽(1112)的一端，扁管(20)插接于扁管槽(1111)内。

Description

换热器
相关申请
本申请要求2024年5月15日申请的，申请号为202421062232.5，名称为“换热器”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及换热技术领域，特别是涉及一种换热器。
背景技术
相关技术中，微通道换热器常包括翅片及扁管，翅片上开设有扁管槽，扁管插入扁管槽内并与翅片焊接固定。
现有翅片和扁管的连接常采用两种方式，例如，多根扁管先排列好后再插入翅片，或者多个翅片先排列好后再插入扁管。然而，不论哪种连接方式，扁管和翅片间的配合都多为间隙配合，这导致后续加工时易发生松散，且翅片和扁管间的间隙易导致虚焊等焊接缺陷，从而极大影响了换热器的换热能力。
发明内容
根据本申请的各种实施例，提供一种换热器。
本申请提供一种换热器，该换热器包括翅片和扁管，所述翅片包括翅片本体和第一限位部，所述翅片本体开设有插槽，所述插槽在所述翅片本体宽度一侧的边缘设有开口，所述插槽包括用于安装所述扁管的扁管槽以及与所述扁管槽连通的导向槽，所述导向槽位于所述翅片本体宽度一侧的边缘，从所述导向槽至所述扁管槽的方向，所述导向槽的厚度逐渐减小；所述第一限位部设于所述扁管槽靠近所述导向槽的一端，且所述第一限位部凸出于所述扁管槽的内壁并与所述翅片本体连接，所述扁管插接于所述扁管槽内，所述第一限位部的一端抵接于所述扁管的表面并与所述扁管过盈配合。
在其中一个实施例中，所述扁管包括相互连接的一个直线段和两个圆弧段，所述直线段位于两个所述圆弧段之间，沿所述扁管的宽度方向，且从所述圆弧段远离所述直线段的方向，所述圆弧段的厚度逐渐减小，其中，所述第一限位部的一端抵接于所述圆弧段的表面并与所述圆弧段过盈配合。
在其中一个实施例中，所述第一限位部的数量为一个，且沿重力方向，所述第一限位部设于所述扁管槽位于下方的侧壁上。
在其中一个实施例中，所述翅片还包括第二限位部，所述第一限位部和所述第二限位部相对设于所述扁管槽的两侧壁，且所述第一限位部和所述第二限位部沿所述扁管槽的厚度方向设置。
在其中一个实施例中，沿所述扁管的厚度方向，所述扁管的厚度定义为H01，所述扁管槽的厚度定义为H02，所述扁管的厚度H01和所述扁管槽的厚度H02满足以下关系式：0≤H02-H01≤0.2mm。
在其中一个实施例中，所述翅片还包括第二限位部，所述第一限位部和所述第二限位部相对设于所述扁管槽的两侧壁，且所述第一限位部和所述第二限位部沿所述扁管槽的厚度方向设置；所述第一限位部凸出于所述扁管槽侧壁的高度定义为W01，所述第二限位部凸出于所述扁管槽侧壁的高度定义为W02，所述第一限位部凸出于所述扁管槽侧壁的高度W01和所述第二限位部凸出于所述扁管槽侧壁的高度W02满足以下关系式：0.03mm≤W01+W02≤0.25mm。
在其中一个实施例中，所述第一限位部包括第一侧面和第二侧面，所述第一侧面设于所述第二侧面靠近所述导向槽的一侧并与所述第二侧面连接，其中，所述第一侧面相对所述扁管槽侧壁形成的夹角定义为a，所述第二侧面相对所述扁管槽侧壁形成的夹角定义为b，所述第一侧面相对所述扁管槽侧壁形成的夹角a小于所述第二侧面相对所述扁管槽侧壁形成的夹角b。
在其中一个实施例中，所述第二限位部包括第三侧面和第四侧面，所述第三侧面设于所述第四侧面靠近所述导向槽的一侧并与所述第四侧面连接，其中，所述第三侧面相对所述扁管槽侧壁形成的夹角定义为c，所述第四侧面相对所述扁管槽侧壁形成的夹角定义为d，所述第三侧面相对所述扁管槽侧壁形成的夹角c小于所述第四侧面相对所述扁管槽侧壁形成的夹角d。
在其中一个实施例中，所述翅片还包括第三限位部，所述第三限位部设于所述扁管槽沿自身周向的侧壁上；所述扁管的表面设有配合部，所述第三限位部和所述配合部卡接配合。
在其中一个实施例中，所述第三限位部和所述配合部中的一者设置为凸起，另一者设置为凹槽，所述凸起卡设于所述凹槽内。
在其中一个实施例中，所述配合部设置为多个，多个所述配合部沿所述扁管的宽度方向间隔设置，或者沿所述扁管的厚度方向相对设置；其中，至少部分所述凹槽与所述凸起一一对应设置。
在其中一个实施例中，沿所述扁管的厚度方向，所述扁管的厚度定义为H01，所述扁管槽的厚度定义为H02，所述扁管的厚度H01和所述扁管槽的厚度H02满足以下关系式：0≤H02-H01≤0.2mm；其中所述凸起的高度定义为W11，所述凹槽的深度定义为W21，所述凸起的高度W11和所述凹槽的深度W21满足以下关系式：0.03mm≤W11-W21≤0.25mm。
在其中一个实施例中，所述凸起的高度定义为W11，所述凹槽的深度定义为W21，所述凸起的高度W11和所述凹槽的深度W21满足以下关系式：满足0.03mm≤2(W11-W21)≤0.25mm。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅是本申请的一些实施例，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请提供的一实施例的换热器的结构示意图。
图2为本申请提供的一实施例的翅片的结构示意图。
图3为本申请提供的一实施例的第一限位部的结构示意图。
图4为本申请提供的一实施例的换热器的部分结构示意图。
图5为本申请提供的一实施例的扁管的正视图。
图6为本申请提供的一实施例的第三限位部的结构示意图。
图7为本申请提供的另一实施例的扁管的正视图。
图8为本申请提供的另一实施例的第三限位部的结构示意图。
图9为本申请提供的又一实施例的第三限位部的结构示意图。
图10为本申请提供的一实施例的第二限位部的结构示意图。
图中各符号表示含义如下：100、换热器；10、翅片；11、翅片本体；111、插槽；1111、扁管槽；1112、导向槽；112、排水槽；113、开口；120、第一限位部；123、第二限位部；121、第一侧面；122、第二侧面；1231、第三侧面；1232、第四侧面；13、第三限位部；14、翻边；20、扁管；21、直线段；22、圆弧段；23、配合部。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，当组件被称为“固定于”或“设置于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接到另一个组件或者可能同时存在居中组件。本申请的说明书所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”、“下”可以是第一特征直接和第二特征接触，或第一特征和第二特征间接地通过中间媒介接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可以是第一特征在第二特征正上方或斜上方，或仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅表示第一特征水平高度小于第二特征。
除非另有定义，本申请的说明书所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本申请的说明书所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
现有的微通道换热器常包括翅片及扁管，翅片上开设有扁管槽，扁管插入扁管槽内并与翅片焊接固定。
现有翅片和扁管的连接常采用两种方式，例如，多根扁管先排列好后再插入翅片，或者多个翅片先排列好后再插入扁管。然而，不论哪种连接方式，扁管和翅片间的配合都多为间隙配合，这导致后续加工时易发生松散，且翅片和扁管间的间隙易导致虚焊等焊接缺陷，从而极大影响了换热器的换热能力。
请参阅图1-图10，为解决现有翅片和扁管的连接会降低换热器的换热能力的问题，本申请提供一种换热器100。该换热器100包括翅片10和扁管20，翅片10包括翅片本体11和第一限位部120，翅片本体11开设有插槽111，插槽111在翅片本体11宽度一侧的边缘设有开口113，插槽111包括用于安装扁管20的扁管槽1111以及与扁管槽1111连通的导向槽1112，导向槽1112位于翅片本体11宽度一侧的边缘，从导向槽1112至扁管槽1111的方向，导向槽1112的厚度逐渐减小。第一限位部120设于扁管槽1111靠近导向槽1112的一端，且第一限位部120凸出于扁管槽1111的内壁并与翅片本体11连接，扁管20插接于扁管槽1111内，第一限位部120的一端抵接于扁管20的表面并与扁管20过盈配合。
需要说明的是，扁管槽1111的厚度方向、导向槽1112的厚度方向、扁管20的厚度方向以及下述的扁管20上的直线段21和圆弧段22的厚度方向均相同。
以图5为例，上述厚度方向为图中箭头X的方向，扁管20的宽度方向为图中Y方向。以图2为例，翅片本体11宽度方向为图中箭头A的方向，翅片本体11的长度方向为图中箭头B的方向。
可以理解的是，当扁管20安装于扁管槽1111内时，由于第一限位部120能够抵设于扁管20的表面并与扁管20过盈配合，因此，第一限位部120能够实现对扁管20的固定卡接，防止扁管20滑出扁管槽1111，从而保证了扁管20和翅片10的牢固连接，有利于后续的焊接，如此，有效保证了换热器100的换热效果。并且，通过将第一限位部120设于扁管槽1111和导向槽1112的交界处，扁管20在通过导向槽1112插入扁管槽1111时撑开扁管槽1111的难度更低，从而有利于降低扁管20的装配难度，提高装配效率，同时，也能够减小翅片10产生的变形，避免对翅片10的换热效果造成影响。
进一步地，在一实施例中，扁管20包括相互连接的一个直线段21和两个圆弧段22，直线段21位于两个圆弧段22之间，沿扁管20的宽度方向，且从圆弧段22远离直线段21的方向，圆弧段22的厚度逐渐减小，其中，第一限位部120的一端抵接于圆弧段22的表面并与圆弧段22过盈配合。
在扁管20插入扁管槽1111内时，其中一个圆弧段22作为插入端，依靠弧形表面能够起到较好的导向作用，进一步降低扁管20的插入难度。且当扁管20实现与扁管槽1111的装配时，另一个圆弧段22实现与第一限位部120的抵接配合，其中，由于圆弧段22的厚度小于直线段21的厚度，且第一限位部120和圆弧段22表面抵接，实现了对直线段21的限位止挡，从而有效避免了扁管20脱离扁管槽1111的情况发生，有利于后续的焊接加工，且进一步降低了翅片10的变形概率。同时，也无需在扁管20上加工对应结构与第一限位部120配合，从而大大降低了扁管20的加工难度。
在一实施例中，如图2和图3所示，第一限位部120包括第一侧面121和第二侧面122，第一侧面121设于第二侧面122靠近导向槽1112的一侧并与第二侧面122连接，其中，第一侧面121相对扁管槽1111侧壁形成的夹角定义为a，第二侧面122相对扁管槽1111侧壁形成的夹角定义为b，第一侧面121相对扁管槽1111侧壁形成的夹角定义为a小于第二侧面122相对扁管槽1111侧壁形成的夹角定义为b。第二限位部123包括第三侧面1231和第四侧面1232，第三侧面1231设于第四侧面1232靠近导向槽1112的一侧并与第四侧面1232连接，其中，第三侧面1231相对扁管槽1111侧壁形成的夹角定义为c，第四侧面1232相对扁管槽1111侧壁形成的夹角定义为d，第三侧面相对扁管槽1111侧壁形成的夹角c小于第四侧面1232相对扁管槽1111侧壁形成的夹角d。
由于第一侧面121形成的夹角较小，扁管20能够更为顺畅地沿第一侧面121的导向插入扁管槽1111内，进一步降低扁管20的插入难度。而第二侧面122形成的夹角较大，能够对扁管20起到更大的阻力作用，从而阻碍扁管20从扁管槽1111内脱离，进一步提升了第一限位部120的限位可靠性。
进一步地，第一侧面121和第二侧面122的连接处平滑过渡连接，以减少第一限位部120和扁管20间的接触磨损，提高第一限位部120的限位可靠性。
在一实施例中，第一限位部120的数量为一个，且沿重力方向，第一限位部120设于扁管槽1111位于下方的侧壁上。通过第一限位部120和扁管20的抵接，能够有效避免扁管20在重力作用下紧靠扁管槽1111位于下方的侧壁上，如此，可合理调节扁管20和扁管槽1111之间的间隙，从而有利于扁管20和翅片10的焊接，提高换热器100的换热效果。
以图1为例，重力方向为图中箭头G的方向。
在另一实施例中，翅片11还包括第二限位部123，第一限位部120和所述第二限位部123相对设于扁管槽1111的两侧壁，且所述第一限位部120和所述第二限位部123沿所述扁管槽的厚度方向设置。通过设置第二限位部123和第一限位部120，能够进一步提升对扁管20的固定效果，且能够更好地控制扁管20至扁管槽1111两侧壁的距离，实现换热效果的进一步提高。
需要说明的是，第一限位部120和第二限位部123的大小可以设置为相同，也可以设置为不同，具体可根据实际间隙需要合理设置。
为降低扁管20的装配难度，在一实施例中，如图4所示，沿扁管20的厚度方向，扁管20的厚度定义为H01，扁管槽1111的厚度定义为H02，扁管20的厚度H01和扁管槽1111的厚度H02满足以下关系式：0≤H02-H01≤0.2mm。也即，本实施例的扁管20和扁管槽1111为间隙配合，如此，扁管20在插入扁管槽1111内时，仅有扁管20的直线段21与第一限位部120之间实现过盈，从而减少了过盈接触面积，降低了翅片10变形的风险。其中，通过合理设置扁管20和扁管槽1111侧壁间的距离，还能够起到降低装配难度并保证换热效果的作用。
具体地，若扁管20的厚度H01和扁管槽1111的厚度H02满足以下关系式：H02-H01＞0.2mm，则扁管20和扁管槽1111侧壁间的距离过大，不利于扁管20和翅片10间的焊接，易产生焊接缺陷，从而影响换热器100的换热效果。若扁管20的厚度H01和扁管槽1111的厚度H02满足以下关系式：H02-H01＜0，则扁管20和扁管槽1111内为过盈配合，大大增加了扁管20的装配难度。
其中，扁管20的厚度H01和扁管槽1111的厚度H02的差值H02-H01可以为0.05mm、0.1mm、0.15mm或0.2mm等，在此不一一列举。
进一步地，本申请具体以设置第一限位部120和第二限位部123为例来进行说明，具体地，在一实施例中，如图4所示，第一限位部120凸出于扁管槽1111侧壁的高度定义为W01，第二限位部123凸出于扁管槽1111侧壁的高度定义为W02，第一限位部120凸出于扁管槽1111侧壁的高度W01和第二限位部123凸出于扁管槽1111侧壁的高度W02满足以下关系式：0.03mm≤W01+W02≤0.25mm。如此，既能够保证第一限位部120和第二限位部123对扁管20的固定限位效果，又能够避免翅片10发生变形。若第一限位部120和第二限位部123的总高度值较大，则第一限位部120和第二限位部123与扁管20间的装配更加紧密，使得翅片10受力过大从而易产生变形。若第一限位部120和第二限位部123的总高度值较小，则第一限位部120和第二限位部123对扁管20的限位效果减弱，存在扁管20脱离扁管槽1111的风险。
示例性地，第一限位部120和第二限位部123的高度的和W01+W02可以为0.03mm、0.05mm、0.1mm、0.15mm、0.2mm或0.25mm等，具体可根据实际需要合理设置。
为进一步提高扁管20和扁管槽1111连接的牢固程度，如图5-图9所示，在一实施例中，翅片10还包括第三限位部13，第三限位部13设于扁管槽1111沿自身周向的侧壁上。扁管20的表面设有配合部23，第三限位部13和配合部23卡接配合。
进一步地，在一实施例中，第三限位部13和配合部23中的一者设置为凸起，另一者设置为凹槽，凸起卡设于凹槽内。如此，第三限位部13和配合部23的结构简单，能够降低加工难度。
具体地，在一实施例中，凸起的形状呈半球状或长条状，凹槽的形状呈长条状。由于一根扁管20通常需要和多个翅片10配合，本实施例通过将凹槽设置为长条状能够降低凸起和凹槽的配合难度，从而提升扁管20的装配效率。
更进一步地，在一实施例中，配合部23设置为多个，多个配合部23沿扁管20的宽度方向间隔设置，或者沿扁管20的厚度方向相对设置。其中，至少部分凹槽与凸起一一对应设置。也即，在本实施例中，凹槽的数量大于或等于凸起的数量，既能够实现凸起和凹槽的对应配合，且在设置更多的凹槽数量时，能够进一步地降低扁管20的插入难度。此外，设置多个凸起和凹槽配合卡接，也能够进一步提升扁管20的固定效果，且能够更好地控制扁管20至扁管槽1111两侧壁的距离，实现换热效果的进一步提高。
在一实施例中，如图5和图6所示，以配合部23设置为凸起，第三限位部13设置为凹槽，并且，配合部23相对设于扁管20的两侧壁为例，且所述第一限位部120和所述第二限位部123沿所述扁管槽的厚度方向设置，此时，凸起的高度定义为W11，凹槽的深度定义为W21，凸起的高度W11和凹槽的深度W21满足以下关系式：0.03mm≤2(W11-W21)≤0.25mm。如此，既能够保证扁管20的固定限位效果，又能够避免翅片10发生较大变形。若两个凸起的总高度值相比于两个凹槽的总深度值间的差值较大，则凸起会对翅片10施加更大的作用力，从而易导致翅片10产生变形。若两个凸起的总高度值相比于两个凹槽的总深度值间的差值较小，则扁管20和翅片10间的配合效果减弱，存在扁管20脱离扁管槽1111的风险。
示例性地，此时凸起的高度W11和凹槽的深度W21满足以下关系式：2(W11-W21)的值可以为0.03mm、0.05mm、0.1mm、0.15mm、0.2mm或0.25mm等，具体可根据实际需要合理设置。
在另一实施例中，如图7、图8和图9所示，以配合部23设置为凹槽，第三限位部13设置为凸起，并且，配合部23设于扁管20沿自身厚度方向的一侧为例，此时，凸起的高度定义为W11，凹槽的深度定义为W21，凸起的高度W11和凹槽的深度W21满足以下关系式：0.03mm≤W11-W21≤0.25mm。如此，既能够保证扁管20的固定限位效果，又能够避免翅片10发生较大变形。若凸起的高度值与凹槽的深度值间的差值较大，则扁管20会对翅片10施加更大的作用力，从而易导致翅片10产生变形。若凸起的高度值与凹槽的深度值间的差值较小，则扁管20和翅片10间的配合效果减弱，存在扁管20脱离扁管槽1111的风险。
示例性地，此时W11-W21的值可以为0.03mm、0.05mm、0.1mm、0.15mm、0.2mm或0.25mm等，具体可根据实际需要合理设置。
其中，当配合部23仅设置于一侧时，与单个第一限位部120的布置相类似，可选设于沿重力方向的下方。
在一实施例中，如图1和图2所示，翅片10还包括翻边14，翻边14围设于扁管槽1111的周侧，且翻边14垂直于翅片本体11。通过设置翻边14一方面能够提高翅片10和扁管20的连接强度，另一方面也能够在多个翅片10排列时利用翻边14实现定位，有利于控制相邻翅片10间的间距，从而提升换热器100整体的装配效率。
具体地，本申请的第一限位部120和第三限位部13可均延伸至翻边14上，以提升第一限位部120和第三限位部13的限位可靠性。
进一步地，在一实施例中，翅片本体11设有排水槽112，排水槽112设于翅片本体11上远离导向槽1112的一侧，并沿翅片本体11的长度方向延伸，排水槽112用于排出冷凝水，避免冷凝水在翅片10上积聚，有利于提升换热器100的换热效果。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请的专利保护范围应以所附权利要求为准。

Claims (15)

  1. 一种换热器，其特征在于，包括翅片和扁管，所述翅片包括翅片本体和第一限位部，所述翅片本体开设有插槽，所述插槽在所述翅片本体宽度一侧的边缘设有开口，所述插槽包括用于安装所述扁管的扁管槽以及与所述扁管槽连通的导向槽，所述导向槽位于所述翅片本体宽度一侧的边缘，从所述导向槽至所述扁管槽的方向，所述导向槽的厚度逐渐减小；
    所述第一限位部设于所述扁管槽靠近所述导向槽的一端，且所述第一限位部凸出于所述扁管槽的内壁并与所述翅片本体连接，所述扁管插接于所述扁管槽内，所述第一限位部的一端抵接于所述扁管的表面并与所述扁管过盈配合。
  2. 根据权利要求1所述的换热器，其中，所述扁管包括相互连接的一个直线段和两个圆弧段，所述直线段位于两个所述圆弧段之间，沿所述扁管的宽度方向，且从所述圆弧段远离所述直线段的方向，所述圆弧段的厚度逐渐减小，其中，所述第一限位部的一端抵接于所述圆弧段的表面并与所述圆弧段过盈配合。
  3. 根据权利要求1所述的换热器，其中，所述第一限位部的数量为一个，且沿重力方向，所述第一限位部设于所述扁管槽位于下方的侧壁上。
  4. 根据权利要求1所述的换热器，其特征在于，还包括第二限位部，所述第一限位部和所述第二限位部相对设于所述扁管槽的两侧壁，且所述第一限位部和所述第二限位部沿所述扁管槽的厚度方向设置。
  5. 根据权利要求1所述的换热器，其中，沿所述扁管的厚度方向，所述扁管的厚度定义为H01，所述扁管槽的厚度定义为H02，所述扁管的厚度H01和所述扁管槽的厚度H02满足以下关系式：0≤H02-H01≤0.2mm。
  6. 根据权利要求5所述的换热器，其中，还包括第二限位部，所述第一限位部和所述第二限位部相对设于所述扁管槽的两侧壁，且所述第一限位部和所述第二限位部沿所述扁管槽的厚度方向设置；
    其中所述第一限位部凸出于所述扁管槽侧壁的高度定义为W01，所述第二限位部凸出于所述扁管槽侧壁的高度定义为W02，所述第一限位部凸出于所述扁管槽侧壁的高度W01和所述第二限位部凸出于所述扁管槽侧壁的高度W02满足以下关系式：0.03mm≤W01+W02≤0.25mm。
  7. 根据权利要求1所述的换热器，其中，所述第一限位部包括第一侧面和第二侧面，所述第一侧面设于所述第二侧面靠近所述导向槽的一侧并与所述第二侧面连接，其中，
    所述第一侧面相对所述扁管槽侧壁形成的夹角定义为a，所述第二侧面相对所述扁管槽侧壁形成的夹角定义为b，所述第一侧面相对所述扁管槽侧壁形成的夹角a小于所述第二侧面相对所述扁管槽侧壁形成的夹角b。
  8. 根据权利要求4所述的换热器，其中，所述第二限位部包括第三侧面和第四侧面，所述第三侧面设于所述第四侧面靠近所述导向槽的一侧并与所述第四侧面连接，其中，所述第三侧面相对所述扁管槽侧壁形成的夹角定义为c，所述第四侧面相对所述扁管槽侧壁形成的夹角定义为d，所述第三侧面相对所述扁管槽侧壁形成的夹角c小于所述第四侧面相对所述扁管槽侧壁形成的夹角d。
  9. 根据权利要求1-8任一项所述的换热器，其中，所述翅片还包括第三限位部，所述第三限位部设于所述扁管槽沿自身周向的侧壁上；
    所述扁管的表面设有配合部，所述第三限位部和所述配合部卡接配合。
  10. 根据权利要求9所述的换热器，其中，所述第三限位部和所述配合部中的一者设置为凸起，另一者设置为凹槽，所述凸起卡设于所述凹槽内。
  11. 根据权利要求10所述的换热器，其中，所述配合部设置为多个，多个所述配合部沿所述扁管的宽度方向间隔设置，或者沿所述扁管的厚度方向相对设置；
    其中，至少部分所述凹槽与所述凸起一一对应设置。
  12. 根据权利要求10或11所述的换热器，其中，所述第三限位部设置为凸起，所述配合部设置为凹槽，所述第三限位部卡设于所述配合部内。
  13. 根据权利要求10或11所述的换热器，其中，所述配合部中的一者设置为凸起，所述第三限位部设置为凹槽，所述配合部卡设于所述第三限位部内。
  14. 根据权利要求11所述的换热器，其中，所述凸起的高度定义为W11，所述凹槽的深度定义为W21，所述凸起的高度W11和所述凹槽的深度W21满足以下关系式：0.03mm≤W11-W21≤0.25mm。
  15. 根据权利要求11所述的换热器，其中，所述凸起的高度定义为W11，所述凹槽的深度定义为W21，所述凸起的高度W11和所述凹槽的深度W21满足以下关系式：
    满足0.03mm≤2(W11-W21)≤0.25mm。
PCT/CN2025/095150 2024-05-15 2025-05-15 换热器 Pending WO2025237376A1 (zh)

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