WO2022247876A1 - 连接件及具有它的换热器 - Google Patents

连接件及具有它的换热器 Download PDF

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Publication number
WO2022247876A1
WO2022247876A1 PCT/CN2022/095085 CN2022095085W WO2022247876A1 WO 2022247876 A1 WO2022247876 A1 WO 2022247876A1 CN 2022095085 W CN2022095085 W CN 2022095085W WO 2022247876 A1 WO2022247876 A1 WO 2022247876A1
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WO
WIPO (PCT)
Prior art keywords
hole
wall
end surface
annular
axial direction
Prior art date
Application number
PCT/CN2022/095085
Other languages
English (en)
French (fr)
Inventor
石志浩
高强
黄旭蛟
钟笑鸣
Original Assignee
杭州三花微通道换热器有限公司
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 杭州三花微通道换热器有限公司 filed Critical 杭州三花微通道换热器有限公司
Priority to EP22810600.1A priority Critical patent/EP4350275A1/en
Priority to US18/564,479 priority patent/US20240255238A1/en
Publication of WO2022247876A1 publication Critical patent/WO2022247876A1/zh

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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
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0248—Arrangements for sealing connectors to 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the present application relates to the technical field of heat exchange, in particular, to a connecting piece and a heat exchanger having the same.
  • Microchannel heat exchangers have the characteristics of high refrigeration efficiency and small size, and their applications are developing rapidly. In some cases, it is necessary to install connecting pieces at the header of the microchannel heat exchanger. Connecting pieces, such as adapters, are often used in heat exchangers to connect the header of the heat exchanger with the inlet and outlet piping Connected to increase the strength of the connection part to facilitate the connection of the inlet and outlet pipes; generally, the adapter seat is formed by machining. Compared with the heat exchanger header, the material is relatively thick, which is not conducive to the welding connection of the two, and the connection Not easy to locate.
  • Embodiments of the present application provide a connecting piece, which is conducive to improving the strength of the connecting piece, and is convenient for positioning and connection during use.
  • the connector according to the embodiment of the present application includes a tubular portion, a flange portion and a first protruding portion, the tubular portion includes a first through hole and a first wall, the first wall is arranged around the first through hole, The first wall has a thickness in the radial direction of the first through hole, the first wall includes a first end surface, the first end surface includes a first opening, and the flange portion is located on the tubular portion one end in the axial direction of the flange portion, the flange portion includes a first side, the first side is disposed around the first wall, and the flange portion further includes a first Two end surfaces and a third end surface, the second end surface intersects the first wall at the first side, the second end surface and the first side intersect at the second side, and the first side intersects The perimeter is smaller than the perimeter of the second side, the third end surface intersects the first wall at the third side, and the third end surface intersects the first side at the fourth side, so The perimeter of the third side is smaller
  • the connecting piece according to the embodiment of the present application has improved strength and has the characteristics of convenient positioning and installation.
  • the connector according to the embodiment of the present application includes a tubular portion, a flange portion and an annular portion, the tubular portion includes a first through hole and a first wall, the first wall is arranged around the first through hole, the The first wall has a thickness in the radial direction of the first through hole, the first wall includes a first end surface, the first end surface includes a first opening, and the flange portion is located on the axis of the tubular portion.
  • the flange part includes a first side, the first side is arranged around the first wall, and the flange part also includes a second end surface arranged along the axial direction of the tubular part and a third end surface, the second end surface and the first wall intersect at the first side, the second end surface and the first side intersect at the second side, the perimeter of the first side less than the perimeter of the second side, the third end surface intersects the first wall at the third side, the third end surface and the first side intersect at the fourth side, and the first The perimeter of the three sides is smaller than the perimeter of the fourth side, the third end surface includes a second hole, and the first through hole communicates with the first opening and the first through hole along the axial direction of the tubular portion.
  • the annular portion includes an annular wall, the annular wall is connected to the third end surface, the annular wall is connected to the first wall, and the annular portion is in the tubular
  • the axial direction of the portion is located outside the first through hole, the annular portion includes a second through hole, and the second through hole penetrates the annular wall in the axial direction of the tubular portion,
  • the second through hole communicates with the first through hole and is arranged concentrically, the annular portion has a thickness in the radial direction of the first through hole, and the maximum thickness of the annular portion is smaller than that of the first through hole.
  • the minimum thickness of a wall is arranged concentrically, the annular portion has a thickness in the radial direction of the first through hole, and the maximum thickness of the annular portion is smaller than that of the first through hole.
  • the connecting piece according to the embodiment of the present application has the characteristics of stable structure, high reliability, and little influence on the flow of fluid in the header.
  • the annular wall includes a second protruding portion, the second protruding portion is located at an end of the annular wall away from the flange portion, and the second protruding portion is a plurality of , a plurality of the second protrusions are arranged along the circumferential direction of the first through hole.
  • the hydraulic diameter of the second through hole is smaller than the hydraulic diameter of the first opening.
  • At least one longitudinal section of the flange part includes a sector ring surface, the longitudinal section is parallel to the axial direction of the tubular part, and the sector ring surface includes at least two circular arcs, the two circular arcs The circular arc protrudes toward the first end surface in an axial direction of the tubular portion.
  • the plane perpendicular to the axis is defined as the first plane, the projection of the flange portion on the first plane is elliptical or nearly elliptical, and the thickness of the first wall is T , the length of the minor axis of the ellipse is not less than the sum of 4T and the diameter of the first through hole.
  • the length of the major axis of the ellipse is greater than twice the diameter of the first through hole.
  • the first wall includes a stepped portion, the stepped portion is located in the first through hole, and the stepped portion is along the radial direction of the first through hole in the first through hole. protrudes from the first wall and extends along the axis of the first through hole, and the diameter of the first through hole at the stepped portion is smaller than the diameter of the first opening.
  • the heat exchanger according to the embodiment of the present application includes a connecting piece and a header, the connecting piece is the connecting piece in the above-mentioned embodiments, the first protrusion or the ring portion of the connecting piece is inserted into the header In the tube, the connector communicates with the header.
  • the heat exchanger according to the embodiment of the present application has the characteristics of simple installation, uniform heat exchange and long service life.
  • the heat exchanger is a micro-channel heat exchanger
  • the first protrusion or the ring portion of the connector has a flaring portion, and the flaring portion is located in the header.
  • FIG. 1 is a front view of a connector according to an embodiment of the present application.
  • Fig. 2 is a side view of the connector in Fig. 1 .
  • Fig. 3 is a schematic structural diagram of the connector in Fig. 1 .
  • Fig. 4 is a front view of a connector according to another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of the connector in FIG. 4 .
  • Fig. 6 is a schematic structural diagram of a connector according to another embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a connector according to another embodiment of the present application.
  • the adapter seat in order to realize the connection between the inlet and outlet pipes of the heat exchanger and the header, the adapter seat is designed as two parts, the upper part is small and the lower part is larger.
  • the wall thickness of the collector In the tube hole, the wall thickness of the collector is generally 1mm-3mm, which may easily lead to insufficient welding length between the adapter seat and the collector, and in long-term use, due to insufficient strength, it is easy to cause the weld between the adapter seat and the collector to break .
  • some related technologies propose to add a tile-shaped part to form an assembly with the adapter seat.
  • the tile and the adapter seat are not integrally formed, and only the tile is added.
  • the overlapping area of the connection between the sheet and the adapter seat can effectively increase the welding strength.
  • the part of the adapter seat inserted into the header is too long, which hinders the flow of refrigerant into the header, thus affecting heat transfer. performance.
  • the connector 100 includes a tubular portion 1 , a flange portion 2 and a first protruding portion 3 .
  • the tubular part 1 includes a first through hole 11 and a first wall 12, the first wall 12 is arranged around the first through hole 11, the first wall 12 has a thickness in the radial direction of the first through hole 11, the first wall 12 includes The first end surface 121 includes a first opening 1211 .
  • the first through hole 11 is arranged along the up and down direction, and a first wall 12 is arranged around the center line of the first through hole 11, and the first wall 12 is arranged in the radial direction of the first through hole 11 (Fig. 1) has a certain thickness, and the thickness of the first wall 12 at the same height in the up and down direction is consistent, the upper end surface of the first wall 12 is the first end surface 121, and the opening of the upper end surface is the first opening 1211.
  • the flange part 2 is located at one end in the axial direction of the tubular part 1, the flange part 2 includes a first side 21, and the first side 21 is arranged around the first wall 12, and the flange part 2 also includes an axial direction along the tubular part 1.
  • the lower end of the tubular portion 1 is provided with a flange portion 2, the outer peripheral surface of the flange portion 2 is a first side surface 21, and the first side surface 21 is arranged around the center line of the first through hole 11.
  • One side 21 is parallel to the outer peripheral surface of the first wall 12 in the left-right direction, and the upper surface of the flange portion 2 is the second end surface 22, and the second end surface 22 is respectively connected to the first wall 12 and the first side surface 21 in the left-right direction.
  • the second end surface 22 intersects with the first wall 12 to form a first side
  • the second end surface 22 intersects with the first side 21 to form a second side
  • the first side and the second side are opposite in the left-right direction
  • the second The two sides are located outside the first side, that is, the perimeter of the first side is smaller than the perimeter of the second side
  • the lower surface of the flange part 2 is the third end surface 23, and the third end surface 23 is respectively in the left and right direction.
  • the first wall 12 intersects with the first side 21, the third end surface 23 intersects with the first wall 12 to form a third side, the third end surface 23 intersects with the first side 21 to form a fourth side, the third side and the fourth
  • the sides are opposite in the left-right direction, and the fourth side is located outside the third side, that is, the perimeter of the third side is smaller than the perimeter of the fourth side, and the center of the third end surface 23 is provided with a second hole 231.
  • a through hole 11 runs through the tubular portion 1 up and down, connecting the first opening 1211 on the upper end of the first wall 12 and the second hole 231 on the third end surface 23 together.
  • the first protruding portion 3 is connected to the third end surface 23, the first protruding portion 3 is connected to the first wall 12, the first protruding portion 3 is located outside the first through hole 11 in the axial direction of the tubular portion 1, There are a plurality of first protruding parts 3, and the plurality of first protruding parts 3 are arranged along the circumferential direction of the first through hole 11.
  • the first protruding part 3 has a thickness in the radial direction of the first through hole 11. The maximum thickness of the protrusion 3 is smaller than the minimum thickness of the first wall 12 .
  • the first protruding part 3 is arranged under the flange part 2, the upper end of the first protruding part 3 is connected with the first wall 12, and the outer peripheral surface of the first protruding part 3 is in contact with the first wall 12.
  • the third end surfaces 23 are connected together, and a plurality of first protrusions 3 are arranged around the center of the first through hole 11 at intervals.
  • the plurality of first protrusions 3 can further reduce local stress concentration and improve reliability.
  • the first protruding portion 3 has a certain thickness in the radial direction (the left-right direction in FIG.
  • the maximum thickness of the first protruding portion 3 is smaller than the minimum thickness of the first wall 12, so that Increasing the processing stress on the overall structure of the connector 100 and reducing the size of the openings on the collector 200 during assembly are beneficial to improving the pressure resistance of the core and enhancing the reliability of the connector 100 .
  • the connector 100 according to the embodiment of the present application has the characteristics of easy positioning and easy installation.
  • the connector 100 includes a tubular part 1 , a flange part 2 and a ring part 4 .
  • the tubular part 1 includes a first through hole 11 and a first wall 12, the first wall 12 is arranged around the first through hole 11, the first wall 12 has a thickness in the radial direction of the first through hole 11, the first wall 12 includes The first end surface 121 includes a first opening 1211 .
  • the first through hole 11 is arranged along the up and down direction, and the first wall 12 is arranged around the center line of the first through hole 11, and the first wall 12 has a certain thickness, and the same in the up and down direction.
  • the thickness of the first wall 12 along the radial direction of the first through hole 11 (the left-right direction in FIG. 1 ) has the same thickness, the upper end surface of the first wall 12 is the first end surface 121, and the opening of the upper end surface is the first opening 1211 .
  • the flange part 2 is located at one end in the axial direction of the tubular part 1, the flange part 2 includes a first side 21, and the first side 21 is arranged around the first wall 12, and the flange part 2 also includes an axial direction along the tubular part 1.
  • the lower end of the tubular part 1 is provided with a flange part 2, the outer peripheral surface of the flange part 2 is a first side 21, and the first side 21 is arranged around the centerline of the first through hole 11,
  • the first side surface 21 is parallel to the outer peripheral surface of the first wall 12 in the left-right direction
  • the upper surface of the flange part 2 is the second end surface 22, and the second end surface 22 is respectively connected to the first wall 12 and the first side surface in the left-right direction.
  • the second end surface 22 intersects with the first wall 12 to form a first side
  • the second end surface 22 intersects with the first side 21 to form a second side
  • the first side and the second side are opposite in the left-right direction
  • the second side is located outside the first side, that is, the perimeter of the first side is smaller than the perimeter of the second side
  • the lower surface of the flange portion 2 is the third end surface 23, and the third end surface 23 is respectively in the left and right directions.
  • the third end surface 23 intersects with the first wall 12 to form a third side
  • the third end surface 23 intersects with the first side 21 to form a fourth side
  • the third side and the first side The four sides are opposite in the left-right direction
  • the fourth side is located outside the third side, that is, the perimeter of the third side is smaller than the perimeter of the fourth side
  • the center of the third end surface 23 is provided with a second hole 231
  • the first through hole 11 runs through the tubular portion 1 up and down, and connects the first opening 1211 on the upper end of the first wall 12 with the second hole 231 on the third end surface 23 .
  • the annular portion 4 includes an annular wall 41, the annular wall 41 is connected to the third end surface 23, the annular wall 41 is connected to the first wall 12, and the annular portion 4 is located in the first through hole in the axial direction of the tubular portion 1 11, the annular portion 4 includes a second through hole 42, the second through hole 42 penetrates the annular wall 41 in the axial direction of the tubular portion 1, and the second through hole 42 communicates with the first through hole 11 and is arranged concentrically , the annular portion 4 has a thickness in the radial direction of the first through hole 11 , and the maximum thickness of the annular portion 4 is smaller than the minimum thickness of the first wall 12 .
  • the annular portion 4 is arranged under the flange portion 2, the upper end of the annular wall 41 is connected with the first wall 12, and the annular wall 41 is connected with the third end surface 23,
  • the center of the ring part 4 is provided with a second through hole 42, the second through hole 42 runs through the ring wall 41 along the up and down direction, the upper end of the second through hole 42 communicates with the lower end of the first through hole 11, and the second through hole 42 is arranged concentrically with the first through hole 11, and the annular portion 4 has a thickness in the radial direction (the left-right direction in FIG. 1 ) of the first through hole 11, but the maximum thickness of the annular portion 4 is smaller than that of the first wall 12.
  • the minimum thickness is to increase the processing stress on the overall structure of the connector 100, reduce the size of the opening on the collector 200 during assembly, and help improve the pressure resistance of the core.
  • the connection with the collector can be increased.
  • the contact area of the flow tube 200 during welding enhances the reliability of the connector 100 .
  • the connector 100 according to the embodiment of the present application has the characteristics of stable structure, high reliability, and little influence on the flow of the fluid in the header 200 .
  • the first protruding portion 3 and the annular portion 4 can be obtained by extruding the material of the tubular portion. In some embodiments, the first protruding portion 3 is formed by extruding the inner wall of the tubular portion. Compared with machining, it reduces the stress concentration on the connecting parts, which is beneficial to improve the structural strength and save materials.
  • the annular wall 41 includes a second protruding portion 411, the second protruding portion 411 is located at an end of the annular wall 41 away from the flange portion 2, there are multiple second protruding portions 411, and the multiple second protruding portions 411 are The two protrusions 411 are disposed along the circumferential direction of the first through hole 11 .
  • a plurality of second protrusions 411 are also provided at the lower end of the annular wall 41, and the plurality of second protrusions 411 are evenly spaced around the center of the first through hole 11, and the second The protruding portion 411 can expand outward along the radial direction of the first through hole 11 to reduce the influence on the flow of the fluid in the header 200 .
  • the hydraulic diameter of the second through hole 42 is smaller than the hydraulic diameter of the first opening 1211 .
  • the second through hole 42 communicates with the header 200, and the hydraulic diameter of the first opening 1211 is larger than the hydraulic diameter of the second through hole 42, which can reduce the pressure at the second through hole 42, improve the strength of the joint, and reduce the
  • the connecting piece 100 acts as a hindrance, reducing the impact on the heat exchange effect.
  • At least one longitudinal section of the flange portion 2 includes a fan ring surface, the longitudinal section is parallel to the axial direction of the tubular part 1, and the fan ring surface includes at least two circular arcs, and the two circular arcs are at the center of the tubular part 1. It protrudes toward the first end face 121 in the axial direction.
  • one or more of the longitudinal sections of the flange portion 2 along the up and down direction is a fan ring surface.
  • the heights in the up and down directions are the same.
  • one or more longitudinal sections of the flange part 2 along the up and down direction are meniscus, the upper and lower sides of the meniscus are arcs, the arcs protrude upwards, and the meniscus is in the up and down direction.
  • the height of the meniscus is inconsistent, and the height of the meniscus gradually increases from the position away from the centerline of the tubular part 1 toward the direction of the centerline of the tubular part 1, so that the structure of the connector 100 is more stable, and the stress is mainly concentrated on the flange part 2.
  • Edge, during use, the connecting piece 100 is not easy to fall off, and less material is used, and the stamping and forming of the mold is easier.
  • the flange part 2 is formed by extruding the material of the tubular part.
  • the protrusion or ring part and the flange part are formed by extruding the material of the tubular part extruded.
  • the plane perpendicular to the axis is defined as the first plane, the projection of the flange portion 2 on the first plane is elliptical or nearly elliptical, the thickness of the first wall 12 is T, and the elliptical
  • the length of the minor axis is not less than the sum of 4T and the diameter of the first through hole 11 .
  • the flange portion 2 and the collector 200 are connected together by welding.
  • the first plane is a horizontal plane
  • the projection of the flange portion 2 on the horizontal plane is elliptical or nearly elliptical, which can make The distribution of solder on the contact surface between the flange part 2 and the collector 200 is more uniform, and the connection strength between the flange part 2 and the collector 200 is improved.
  • the thickness of the first wall 12 is T
  • the short axis of the ellipse The length is greater than or equal to the sum of 4T and the diameter of the first through hole 11. At this time, it can be ensured that in the high temperature welding process, the overall heating of the connecting piece 100 is easy, the welding quality is good, and the welding pass rate is high.
  • the length of the major axis of the ellipse is greater than twice the diameter of the first through hole 11 .
  • the length of the projected major axis of the flange portion 2 on the horizontal plane is D
  • the diameter of the first through hole 11 is d
  • D is greater than 2d, so as to improve the distance between the flange portion 2 and the header 200. Strength, enhance the use reliability of the connector 100.
  • the first wall 12 includes a step portion 122, the step portion 122 is located in the first through hole 11, and the step portion 122 protrudes beyond the first through hole 11 along the radial direction of the first through hole 11.
  • the wall 12 extends along the axis of the first through hole 11 , and the diameter of the first through hole 11 at the step portion 122 is smaller than the diameter of the first opening 1211 .
  • a stepped portion 122 is provided on the first wall 12, and the stepped portion 122 extends downward to the second opening, and the external connecting pipe is inserted into the tubular portion 1, and the diameter of the downward portion of the stepped portion 122 is smaller than that of the first opening.
  • the diameter of the opening 1211 is such that one end of the external connecting pipe stops against the stepped portion 122, which is easy to install and improves working efficiency.
  • the heat exchanger includes a connecting piece 100 and a header 200, the connecting piece 100 is the above-mentioned connecting piece 100, and the first protrusion 3 or the ring portion 4 of the connecting piece 100 is inserted into the header 200 , the connector 100 communicates with the header 200 .
  • the heat exchanger according to the embodiment of the present application has the characteristics of simple installation, uniform heat exchange and long service life.
  • the heat exchanger is a microchannel heat exchanger
  • the first protruding part 3 or the annular part 4 of the connector 100 has a flaring part (not shown in the figure), and the flaring part is located in the header Within 200.
  • the channel equivalent diameter of the heat exchanger is 10-1000 ⁇ m
  • the outer side of the first protruding part 3 or the ring part 4 of the connector 100 is provided with a flared part, and the flared part is inserted into the current collector
  • the inside of the tube 200 can be flared outwards, and at the same time of installation and positioning, the connection strength between the flange portion 2 and the header 200 can also be improved, and the service life of the heat exchanger can be improved.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise specifically defined.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the terms “one embodiment,” “some embodiments,” “example,” “specific examples,” or “some examples” mean specific features, structures, materials, or features described in connection with the embodiment or examples. Features are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

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Abstract

本申请的实施例公开了一种连接件，所述连接件包括管状部、突缘部和第一凸出部，所述管状部包括第一通孔和第一壁，所述第一壁围绕所述第一通孔设置，所述第一壁包括第一端面，所述第一端面包括第一开口，所述突缘部位于所述管状部的轴向方向上的一端，所述突缘部包括第一侧面，所述第一侧面围绕所述第一壁设置，所述突缘部还包括沿所述管状部的轴向方向设置的第二端面和第三端面，所述第一凸出部与所述第一壁相连，所述第一凸出部在所述管状部的轴向方向上位于所述第一通孔的外侧。本申请实施例的连接件具有结构简单、安装方便的特点。

Description

连接件及具有它的换热器
相关申请的交叉引用
本申请要求申请号为202121168233.4、申请日为2021年05月27日的中国专利申请的优先权和权益，上述中国专利申请的全部内容在此通过引用并入本申请。
技术领域
本申请涉及换热技术领域，具体地，涉及一种连接件及具有它的换热器。
背景技术
微通道换热器具有制冷效率高、体积小等特点，应用发展迅速。在某些情况下，需要在微通道换热器的集流管处安装连接件，连接件，比如转接座常用于换热器中，将换热器的集流管与进出口管路件连接起来，增加连接部位的强度以便于连接进、出口管；一般转接座通过机加工形成，与换热器集流管相比，材料比较厚，不利于两者的焊接连接，且连接处不容易定位。
申请内容
本申请的实施例提出一种连接件，该连接件有利于提高连接件的强度，且便于使用时的定位和连接。
根据本申请实施例的连接件包括管状部、突缘部和第一凸出部，所述管状部包括第一通孔和第一壁，所述第一壁围绕所述第一通孔设置，所述第一壁在所述第一通孔的径向方向上具有厚度，所述第一壁包括第一端面，所述第一端面包括第一开口，所述突缘部位于所述管状部的轴向方向上的一端，所述突缘部包括第一侧面，所述第一侧面围绕所述第一壁设置，所述突缘部还包括沿所述管状部的轴向方向设置的第二端面和第三端面，所述第二端面与所述第一壁相交于第一侧边，所述第二端面和所述第一侧面相交于第二侧边，所述第一侧边的周长小于所述第二侧边的周长，所述第三端面与所述第一壁相交于第三侧边，所述第三端面和所述第一侧面相交于第四侧边，所述第三侧边的周长小于所述第四侧边的周长，所述第三端面包括第二孔，所述第一通孔沿所述管状部的轴向方向连通所述第一开口和所述第二孔，所述第一凸出部与所述第三端面相连，所述第一凸出部与所述第一壁相连，所述第一凸出部在所述管状部的轴向方向上位于所述第一通孔的外侧，所述第一凸出部为多个，多个所述第一凸出部沿所述第一通孔周向设置，所述第一凸出部在所述第一通孔的径向方向上具有厚度，所述第一凸出部的最大厚度小于所述第一壁的最小厚度。
根据本申请实施例的连接件提高了强度，具有定位安装方便的特点。
根据本申请实施例的连接件包括管状部、突缘部和圆环部，所述管状部包括第一通孔和第一壁，所述第一壁围绕所述第一通孔设置，所述第一壁在所述第一通孔的径向方向上具有厚度，所述第一壁包括第一端面，所述第一端面包括第一开口，所述突缘部位于所述管状部的轴向方向上的一端，所述突缘部包括第一侧面，所述第一侧面围绕所述第一壁设置，所述突缘部还包括沿所述管状部的轴向方向设置的第二端面和第三端面，所述第二端面与所述第一壁相交于第一侧边，所述第二端面和所述第一侧面相交于第二侧边，所述第一侧边的周长小于所述第二侧边的周长，所述第三端面与所述第一壁相交于第三侧边，所述第三端面和所述第一侧面相交于第四侧边，所述第三侧边的周长小于所述第四侧边的周长，所述第三端面包括第二孔，所述第一通孔沿所述管状部的轴向方向连通所述第一开口和所述第二孔，所述圆环部包括圆环壁，所述圆环壁与所述第三端面相连，所述圆环壁与所述第一壁相连，所述圆环部在所述管状部的轴向方向上位于所述第一通孔的外侧，所述圆环部包括第二通孔，所述第二通孔在所述管状部的轴向方向上贯穿所述圆环壁，所述第二通孔与所述第一通孔连通且同心设置，所述圆环部在所述第一通孔的径向方向上具有厚度，所述圆环部的最大厚度小于所述第一壁的最小厚度。
根据本申请实施例的连接件，具有结构稳定、可靠性强、对集流管内流体的流动影响小的特点。
在一些实施例中，所述圆环壁包括第二凸出部，所述第二凸出部位于所述圆环壁远离所述突缘部的一端，所述第二凸出部为多个，多个所述第二凸出部沿所述第一通孔周向设置。
在一些实施例中，所述第二通孔的水力直径小于所述第一开口的水力直径。
在一些实施例中，所述突缘部至少一个纵截面包括扇环面，所述纵截面平行于所述管状部的轴向方向，所述扇环面至少包括两个圆弧，两个所述圆弧在所述管状部的轴向方向上朝向所述第一端面凸出。
在一些实施例中，定义垂直于轴线方向上的平面为第一平面，所述突缘部在所述第一平面上的投影为椭圆形或近椭圆形，所述第一壁的厚度为T，所述椭圆形的短轴的长度不小于4T与所述第一通孔的直径之和。
在一些实施例中，所述椭圆形长轴的长度大于所述第一通孔直径的2倍。
在一些实施例中，所述第一壁包括台阶部，所述台阶部位于所述第一通孔内，所述台阶部在所述第一通孔内沿所述第一通孔的径向凸出于所述第一壁，并沿所述第一通孔的轴线方向延伸，所述第一通孔在所述台阶部处的直径小于所述第一开口的直径。
根据本申请实施例的换热器包括连接件和集流管，所述连接件为上述实施例中的连接件，所述连接件的第一凸出部或者圆环部插入到所述集流管中，所述连接件与所述集流管 连通。
根据本申请实施例的换热器具有安装简单、换热均匀、使用寿命长的特点。
在一些实施例中，所述换热器为微通道换热器，所述连接件的第一凸出部或者圆环部具有扩口部，所述扩口部位于所述集流管内。
附图说明
图1是根据本申请的一个实施例的连接件的正视图。
图2是图1中连接件的侧视图。
图3是图1中连接件的结构示意图。
图4是根据本申请的另一个实施例的连接件的正视图。
图5是图4中连接件的结构示意图。
图6是根据本申请又一个实施例的连接件的结构示意图。
图7是根据本申请另又一个实施例的连接件的结构示意图。
附图标记：
管状部1，第一通孔11，第一壁12，第一端面121，第一开口1211，台阶部122，突缘部2，第一侧面21，第二端面22，第三端面23，第二孔231，第一凸出部3，圆环部4，圆环壁41，第二凸出部411，第二通孔42，连接件100，集流管200。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
在相关技术中，为实现换热器进出口管与集流管连接，转接座设计为上下两部分，上小下大，上部分圆管与进出口管焊接，下部分圆管插入集流管孔内，而集流管壁厚一般为1mm-3mm，容易导致转接座与集流管焊接长度不够，而且在长期使用中由于强度不够，容易导致转接座与集流管焊接处破裂。
为防止转接座与集流管焊接处破裂，有相关技术提出增加一个瓦片状的零部件，搭配转接座形成组件，但瓦片与转接座不是一体形成，增加的只能是瓦片与转接座连接处的搭接面积，焊接强度增加有效，另一方面，该种转接座插入集流管的部分过长，对制冷剂流入集流管有阻碍作用，从而影响换热性能。
还有相关技术将瓦片和转接座做成一体，这样转接座与集流管的搭接面积，就变成了瓦片与集流管的接触面积，通过增加瓦片的大小提高焊接强度，但这种方焊前，无法通过铆接与集流管固定，必须通过点焊进行固定，增加了生产工序。
下面参考附图1-7描述根据本申请实施例的连接件。
根据本申请实施例的连接件100包括管状部1、突缘部2和第一凸出部3。
管状部1包括第一通孔11和第一壁12，第一壁12围绕第一通孔11设置，第一壁12在第一通孔11的径向方向上具有厚度，第一壁12包括第一端面121，第一端面121包括第一开口1211。
如图1-3所示，第一通孔11沿上下方向设置，绕第一通孔11的中心线设置有第一壁12，第一壁12在第一通孔11的径向方向(图1中的左右方向)具有一定的厚度，且在上下方向上同一高度的第一壁12的厚度一致，第一壁12的上端面为第一端面121，上端面的开口为第一开口1211。
突缘部2位于管状部1的轴向方向上的一端，突缘部2包括第一侧面21，第一侧面21围绕第一壁12设置，突缘部2还包括沿管状部1的轴向方向设置的第二端面22和第三端面23，第二端面22与第一壁12相交于第一侧边(图中未示出)，第二端面22和第一侧面21相交于第二侧边(图中未示出)，第一侧边的周长小于第二侧边的周长，第三端面23与第一壁12相交于第三侧边(图中未示出)，第三端面23和第一侧面21相交于第四侧边(图中未示出)，第三侧边的周长小于第四侧边的周长，第三端面23包括第二孔231，第一通孔11沿管状部1的轴向方向连通第一开口1211和第二孔231。
如图1-3所示，管状部1的的下端设有突缘部2，突缘部2的外周面为第一侧面21，第一侧面21绕第一通孔11的中心线设置，第一侧面21与第一壁12的外周面在左右方向上平行，突缘部2的上表面为第二端面22，第二端面22在左右方向上的分别与第一壁12和第一侧面21相交，第二端面22与第一壁12相交形成第一侧边，第二端面22与第一侧面21相交形成第二侧边，第一侧边和第二侧边在左右方向上相对，第二侧边位于第一侧边外侧，即第一侧边的周长小于第二侧边的周长，突缘部2的下表面为第三端面23，第三端面23在左右方向上分别与第一壁12和第一侧面21相交，第三端面23与第一壁12相交形成第三侧边，第三端面23与第一侧面21相交形成第四侧边，第三侧边和第四侧边在左右方向上相对，第四侧边位于第三侧边外侧，即第三侧边的周长小于第四侧边的周长，第三端面23的中心设有第二孔231，第一通孔11沿管状部1上下贯通，将第一壁12上端的第一开口1211和第三端面23的第二孔231连通在一起。
第一凸出部3与第三端面23相连，第一凸出部3与第一壁12相连，第一凸出部3在管状部1的轴向方向上位于第一通孔11的外侧，第一凸出部3为多个，多个第一凸出部3沿第一通孔11周向设置，第一凸出部3在第一通孔11的径向方向上具有厚度，第一凸出部3的最大厚度小于第一壁12的最小厚度。
如图1-3所示，第一凸出部3设在突缘部2的下方，第一凸出部3的上端与第一壁12连接在一起，第一凸出部3的外周面与第三端面23连接在一起，绕第一通孔11的中心间隔设有多个第一凸出部3，多个第一凸出部3可以进一步减少局部应力集中，提高可靠性。 第一凸出部3在第一通孔11的径向方向(图1中的左右方向)上具有一定的厚度，但第一凸出部3的最大厚度小于第一壁12的最小厚度，以增加连接件100整体结构上的加工应力，减小装配时在集流管200上开孔的大小，有利于提高芯体的耐压性，增强连接件100的可靠性。
根据本申请实施例的连接件100具有便于定位、安装方便的特点。
根据本申请实施例的连接件100包括管状部1、突缘部2和圆环部4。
管状部1包括第一通孔11和第一壁12，第一壁12围绕第一通孔11设置，第一壁12在第一通孔11的径向方向上具有厚度，第一壁12包括第一端面121，第一端面121包括第一开口1211。
如图4和图5所示，第一通孔11沿上下方向设置，绕第一通孔11的中心线设置有第一壁12，第一壁12具有一定的厚度，且在上下方向上同一高度的第一壁12沿第一通孔11的径向方向(图1中的左右方向)的厚度一致，第一壁12的上端面为第一端面121，上端面的开口为第一开口1211。
突缘部2位于管状部1的轴向方向上的一端，突缘部2包括第一侧面21，第一侧面21围绕第一壁12设置，突缘部2还包括沿管状部1的轴向方向设置的第二端面22和第三端面23，第二端面22与第一壁12相交于第一侧边(图中未示出)，第二端面22和第一侧面21相交于第二侧边(图中未示出)，第一侧边的周长小于第二侧边的周长，第三端面23与第一壁12相交于第三侧边(图中未示出)，第三端面23和第一侧面21相交于第四侧边(图中未示出)，第三侧边的周长小于第四侧边的周长，第三端面23包括第二孔231，第一通孔11沿管状部1的轴向方向连通第一开口1211和第二孔231。
如图4和图5所示，管状部1的的下端设有突缘部2，突缘部2的外周面为第一侧面21，第一侧面21绕第一通孔11的中心线设置，第一侧面21与第一壁12的外周面在左右方向上平行，突缘部2的上表面为第二端面22，第二端面22在左右方向上的分别与第一壁12和第一侧面21相交，第二端面22与第一壁12相交形成第一侧边，第二端面22与第一侧面21相交形成第二侧边，第一侧边和第二侧边在左右方向上相对，第二侧边位于第一侧边外侧，即第一侧边的周长小于第二侧边的周长，突缘部2的下表面为第三端面23，第三端面23在左右方向上分别与第一壁12和第一侧面21相交，第三端面23与第一壁12相交形成第三侧边，第三端面23与第一侧面21相交形成第四侧边，第三侧边和第四侧边在左右方向上相对，第四侧边位于第三侧边外侧，即第三侧边的周长小于第四侧边的周长，第三端面23的中心设有第二孔231，第一通孔11沿管状部1上下贯通，将第一壁12上端的第一开口1211和第三端面23的第二孔231连通在一起。
圆环部4包括圆环壁41，圆环壁41与第三端面23相连，圆环壁41与第一壁12相连， 圆环部4在管状部1的轴向方向上位于第一通孔11的外侧，圆环部4包括第二通孔42，第二通孔42在管状部1的轴向方向上贯穿圆环壁41，第二通孔42与第一通孔11连通且同心设置，圆环部4在第一通孔11的径向方向上具有厚度，圆环部4的最大厚度小于第一壁12的最小厚度。
如图4和图5所示，圆环部4设在突缘部2的下方，圆环壁41的上端与第一壁12连接在一起，圆环壁41与第三端面23连接在一起，圆环部4的中心设有第二通孔42，第二通孔42沿上下方向贯穿圆环壁41，第二通孔42的上端与第一通孔11的下端连通，且第二通孔42与第一通孔11同心设置，圆环部4在第一通孔11的径向方向(图1中的左右方向)上具有厚度，但圆环部4的最大厚度小于第一壁12的最小厚度，以增加连接件100整体结构上的加工应力，减小装配时在集流管200上开孔的大小，有利于提高芯体的耐压性，通过设置圆环部4可以增加与集流管200焊接时的接触面积，增强连接件100的可靠性。
根据本申请实施例的连接件100具有结构稳定、可靠性强、对集流管200内流体的流动影响小的特点。
在一些实施例中，第一凸出部3和圆环部4可由对管状部的材料挤压加工得到，在一些实施例中，第一凸出部3是通过挤压加工管状部内壁部的材料而形成的，与机加工相比，减少了连接件上的应力集中，有利于提高结构强度，节省材料。
在一些实施例中，圆环壁41包括第二凸出部411，第二凸出部411位于圆环壁41远离突缘部2的一端，第二凸出部411为多个，多个第二凸出部411沿第一通孔11周向设置。
如图4和图5所示，在圆环壁41的下端还设有多个第二凸出部411，多个第二凸出部411绕第一通孔11的中心均匀间隔设置，第二凸出部411可沿第一通孔11的径向方向进行外扩，以减少对集流管200内流体的流动的影响。
在一些实施例中，第二通孔42的水力直径小于第一开口1211的水力直径。
第二通孔42与集流管200连通，第一开口1211的水力直径大于第二通孔42的水力直径，可以减小第二通孔42处的压力，提高连接处的强度，同时减少了制冷剂进入集流管200时连接件100的阻碍作用，降低对换热效果的影响。
在一些实施例中，突缘部2至少一个纵截面包括扇环面，纵截面平行于管状部1的轴向方向，扇环面至少包括两个圆弧，两个圆弧在管状部1的轴向方向上朝向第一端面121凸出。
如图1和图4所示，突缘部2沿上下方向的其中一个或多个纵截面为扇环面，扇环面的上边和下边均为圆弧，圆弧向上凸出，扇环面在上下方向上的高度一致。如图6所示，突缘部2沿上下方向的其中一个或多个纵截面为弯月面，弯月面的上边和下边均为圆弧，圆弧向上凸出，弯月面在上下方向上的高度不一致，自远离管状部1中心线的位置朝向管 状部1中心线的方向，弯月面的高度逐渐变大，从而使连接件100结构更稳定，应力主要集中在突缘部2的边缘，在使用过程中，连接件100不易脱落，且材料使用更少，模具冲压成型更容易。
在一些实施例中,突缘部2是通过对管状部的材料挤压加工形成的，在另外一些实施例中，凸出部或圆环部以及突缘部都是通过对管状部的材料一体挤压成型的。这样的连接件和机加工的连接件相比，节省加工的材料，而且一体成型，整体强度提高，减少连接件上的应力集中分布。
在一些实施例中，定义垂直于轴线方向上的平面为第一平面，突缘部2在第一平面上的投影为椭圆形或近椭圆形，第一壁12的厚度为T，椭圆形的短轴的长度不小于4T与第一通孔11的直径之和。
如图7所示，突缘部2与集流管200之间通过焊接方式连接在一起，第一平面为水平面时，突缘部2在水平面上的投影为椭圆形或近椭圆形，可以使焊料在突缘部2与集流管200之间接触面上的分布更加均匀，提高突缘部2与集流管200的连接强度，当第一壁12的厚度为T，椭圆形的短轴的长度大于或等于4T与第一通孔11的直径之和，此时可以保证在高温焊接过程中，连接件100整体加热容易，焊接质量好，焊接合格率高。
在一些实施例中，椭圆形长轴的长度大于第一通孔11直径的2倍。如图7所示，突缘部2在水平面上的投影长轴的长度为D，第一通孔11直径为d，D大于2d，以此提高突缘部2与集流管200连接处的强度，增强连接件100的使用可靠性。
在一些实施例中，第一壁12包括台阶部122，台阶部122位于第一通孔11内，台阶部122在第一通孔11内沿第一通孔11的径向凸出于第一壁12，并沿第一通孔11的轴线方向延伸，第一通孔11在台阶部122处的直径小于第一开口1211的直径。
如图1-6所示，在第一壁12上设有台阶部122，台阶部122向下延伸至第二开口，外部接管插入管状部1内，台阶部122向下部分的直径小于第一开口1211的直径，从而使外部接管的一端止抵在台阶部122上，易于安装，提高作业效率。
根据本申请实施例的换热器包括连接件100和集流管200，连接件100为上述的连接件100，连接件100的第一凸出部3或者圆环部4插入到集流管200中，连接件100与集流管200连通。
根据本申请实施例的换热器具有安装简单、换热均匀、使用寿命长的特点。
在一些实施例中，换热器为微通道换热器，连接件100的第一凸出部3或者圆环部4具有扩口部(图中未示出)，扩口部位于集流管200内。
如图3和图5所示，换热器的通道当量直径在10-1000μm，连接件100的第一凸出部3或者圆环部4外侧都设有扩口部，扩口部插入集流管200内部后可向外进行扩口，在进 行安装定位的同时，还可以提高突缘部2与集流管200之间的连接强度，提高换热器的使用寿命。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
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，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
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”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅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，或仅仅表示第一特征水平高度小于第二特征。
在本申请中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种连接件，其特征在于，包括
    管状部，所述管状部包括第一通孔和第一壁，所述第一壁围绕所述第一通孔设置，所述第一壁在所述第一通孔的径向方向上具有厚度，所述第一壁包括第一端面，所述第一端面包括第一开口；
    突缘部，所述突缘部位于所述管状部的轴向方向上的一端，所述突缘部包括第一侧面，所述第一侧面围绕所述第一壁设置，所述突缘部还包括沿所述管状部的轴向方向设置的第二端面和第三端面，所述第二端面与所述第一壁相交于第一侧边，所述第二端面和所述第一侧面相交于第二侧边，所述第一侧边的周长小于所述第二侧边的周长，
    所述第三端面与所述第一壁相交于第三侧边，所述第三端面和所述第一侧面相交于第四侧边，所述第三侧边的周长小于所述第四侧边的周长，所述第三端面包括第二孔，所述第一通孔沿所述管状部的轴向方向连通所述第一开口和所述第二孔；
    第一凸出部，所述第一凸出部与所述第三端面相连，所述第一凸出部与所述第一壁相连，所述第一凸出部在所述管状部的轴向方向上位于所述第一通孔的外侧，所述第一凸出部为多个，多个所述第一凸出部沿所述第一通孔周向设置，所述第一凸出部在所述第一通孔的径向方向上具有厚度，所述第一凸出部的最大厚度小于所述第一壁的最小厚度。
  2. 一种连接件，其特征在于，包括：
    管状部，所述管状部包括第一通孔和第一壁，所述第一壁围绕所述第一通孔设置，所述第一壁在所述第一通孔的径向方向上具有厚度，所述第一壁包括第一端面，所述第一端面包括第一开口；
    突缘部，所述突缘部位于所述管状部的轴向方向上的一端，所述突缘部包括第一侧面，所述第一侧面围绕所述第一壁设置，所述突缘部还包括沿所述管状部的轴向方向设置的第二端面和第三端面，所述第二端面与所述第一壁相交于第一侧边，所述第二端面和所述第一侧面相交于第二侧边，所述第一侧边的周长小于所述第二侧边的周长，
    所述第三端面与所述第一壁相交于第三侧边，所述第三端面和所述第一侧面相交于第四侧边，所述第三侧边的周长小于所述第四侧边的周长，所述第三端面包括第二孔，所述第一通孔沿所述管状部的轴向方向连通所述第一开口和所述第二孔；
    圆环部，所述圆环部包括圆环壁，所述圆环壁与所述第三端面相连，所述圆环壁与所述第一壁相连，所述圆环部在所述管状部的轴向方向上位于所述第一通孔的外侧，所述圆环部包括第二通孔，所述第二通孔在所述管状部的轴向方向上贯穿所述圆环壁，所述第二通孔与所述第一通孔连通且同心设置，所述圆环部在所述第一通孔的径向方向上具有厚度， 所述圆环部的最大厚度小于所述第一壁的最小厚度。
  3. 根据权利要求2所述的连接件，其特征在于，所述圆环壁包括第二凸出部，所述第二凸出部位于所述圆环壁远离所述突缘部的一端，所述第二凸出部为多个，多个所述第二凸出部沿所述第一通孔周向设置。
  4. 根据权利要求3所述的连接件，其特征在于，所述第二通孔的水力直径小于所述第一开口的水力直径。
  5. 根据权利要求1-4中任一项所述的连接件，其特征在于，所述突缘部至少一个纵截面包括扇环面，所述纵截面平行于所述管状部的轴向方向，所述扇环面至少包括两个圆弧，两个所述圆弧在所述管状部的轴向方向上朝向所述第一端面凸出。
  6. 根据权利要求1-4中任一项所述的连接件，其特征在于，定义垂直于轴线方向上的平面为第一平面，所述突缘部在所述第一平面上的投影为椭圆形或近椭圆形，所述第一壁的厚度为T，所述椭圆形的短轴的长度不小于4T与所述第一通孔的直径之和。
  7. 根据权利要求6所述的连接件，其特征在于，所述椭圆形长轴的长度大于所述第一通孔直径的2倍。
  8. 根据权利要求1-7中任一项所述的连接件，其特征在于，所述第一壁包括台阶部，所述台阶部位于所述第一通孔内，所述台阶部在所述第一通孔内沿所述第一通孔的径向凸出于所述第一壁，并沿所述第一通孔的轴线方向延伸，所述第一通孔在所述台阶部处的直径小于所述第一开口的直径。
  9. 一种换热器，其特征在于，包括：
    连接件，所述连接件为根据权利要求1-8任一项所述的连接件。
    集流管，所述连接件的第一凸出部或者圆环部插入到所述集流管中，所述连接件与所述集流管连通。
  10. 根据权利要求9所述的换热器，其特征在于，所述换热器为微通道换热器，所述连接件的第一凸出部或者圆环部具有扩口部，所述扩口部位于所述集流管内。
PCT/CN2022/095085 2021-05-27 2022-05-25 连接件及具有它的换热器 WO2022247876A1 (zh)

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