WO2020244446A1 - 扁管及换热器 - Google Patents

扁管及换热器 Download PDF

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Publication number
WO2020244446A1
WO2020244446A1 PCT/CN2020/093131 CN2020093131W WO2020244446A1 WO 2020244446 A1 WO2020244446 A1 WO 2020244446A1 CN 2020093131 W CN2020093131 W CN 2020093131W WO 2020244446 A1 WO2020244446 A1 WO 2020244446A1
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WO
WIPO (PCT)
Prior art keywords
forming plate
flat tube
forming
limiting groove
section
Prior art date
Application number
PCT/CN2020/093131
Other languages
English (en)
French (fr)
Inventor
魏文建
梁新宇
马文勇
Original Assignee
浙江盾安人工环境股份有限公司
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Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Publication of WO2020244446A1 publication Critical patent/WO2020244446A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—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 plate-like or laminated 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins
    • 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
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding

Definitions

  • This application relates to the technical field of heat exchange equipment, in particular to flat tubes and heat exchangers.
  • the flat tube in the existing heat exchanger is welded by two forming plates, and the two forming plates of the flat tube need to be closely aligned during the welding process in order to be welded well, so that the heat exchanger does not leak.
  • the existing forming plate is prone to deviation during the actual welding process, which makes the welding effect poor, which in turn leads to the problem of leakage of the heat exchanger.
  • a flat tube including two molding plates, one of the two molding plates is provided with a limiting portion extending toward the other molding plate, and the other is provided with a limiting groove ,
  • the two forming plates are mutually restricted by the cooperation between the restriction portion and the restriction groove.
  • the above-mentioned flat tube is provided with mutually matched limiting parts and limiting grooves on two corresponding forming plates, so that the two forming plates are maintained in a stable relative position through the cooperation of the limiting parts and the limiting grooves, and two The positioning accuracy between the forming plates, welding two forming plates to form a flat tube under this limited coordination, can improve the welding quality of the flat tube and improve the leakage problem of the flat tube due to poor welding quality.
  • the limiting portion is provided at an edge position of the forming plate, and is bent toward the other forming plate to form a bending section, and the limiting groove is opened on the other forming plate.
  • the corresponding position penetrates the forming plate, and the bending section is embedded in the limiting groove and resists the groove wall of the limiting groove.
  • a limit part when the forming plate is processed, a limit part can be processed at the edge position at the same time, and after the edges of the two forming plates are aligned, the limit part is bent toward the opposite side forming plate to form a bending section.
  • the processing technology and assembly process of the two forming plates are simplified, and at the same time, the bending section resists the groove wall of the limit groove, which can make the relative position relationship between the two forming plates more stable.
  • the limiting portion is a protrusion formed by punching of the forming plate, and the protrusion and the limiting groove are embedded in each other;
  • the limiting groove penetrates the forming plate; or, the limiting groove is a groove with a bottom surface.
  • the protrusions are formed on the forming plate by stamping, which can simplify the processing procedures of the limiting structure.
  • the cross section of the protrusion is any one of a circle, a rectangle, a square, a trapezoid, or a triangle.
  • the limiting portion is an elastic sheet, one end of the elastic sheet is connected to the forming plate, and the other end is inclined to the forming plate.
  • the forming plate is punched to form the elastic sheet.
  • the limiting groove penetrates the forming plate, and the elastic piece is embedded in the limiting groove and protruding from the limiting groove.
  • the forming board includes an expansion section located in the middle of the board surface and a contraction section located at the end of the board surface, the width of the expansion section is greater than the width of the contraction section, and a transition is formed between the expansion section and the contraction section Section, the limiting portion and the limiting groove are respectively arranged on the transition section corresponding to the forming plate.
  • the setting of the shrinkage section is conducive to the insertion of the flat tube and the collector tube in the heat exchanger.
  • some waste will be generated, and this part of the waste will be used to make the limit
  • the part can reduce the waste of raw materials.
  • the limit part and the limit slot are arranged on the transition section of the forming plate, and the board surface space of the forming plate can also be fully utilized.
  • each forming plate has four transition sections, and the transition sections are respectively arranged on a corner of the forming plate; or
  • Each of the forming plates has two transition sections, and the two transition sections are symmetrically distributed with the center line in the width direction of the forming plate as an axis.
  • the application also provides a heat exchanger, which comprises the flat tube described in any of the above embodiments.
  • Fig. 1 is a schematic diagram of the structure of the heat exchanger of embodiment 1 of the application;
  • Example 2 is a schematic diagram of the structure of the flat tube in Example 1 of the application;
  • Fig. 3 is an enlarged schematic diagram of the structure of the flat tube shown in Fig. 2 at A;
  • Fig. 4 is a schematic structural diagram of one of the forming plates of the flat tube shown in Fig. 2;
  • Fig. 5 is a schematic structural diagram of another forming plate of the flat tube shown in Fig. 2;
  • Fig. 6 is an enlarged schematic diagram of the structure at B of the forming plate shown in Fig. 4;
  • Fig. 7 is a schematic structural diagram of a flat tube in another embodiment of the application.
  • Fig. 8 is a schematic structural diagram of a flat tube in another embodiment of the application.
  • Fig. 9 is an enlarged schematic diagram of the structure at C of the flat tube shown in Fig. 8;
  • Fig. 10 is a schematic structural view of one of the forming plates of the flat tube shown in Fig. 8;
  • Fig. 11 is a schematic structural view of another forming plate of the flat tube shown in Fig. 8;
  • FIG. 12 is a schematic structural diagram of a flat tube in another embodiment of the application.
  • Fig. 13 is a schematic structural diagram of a flat tube in another embodiment of the application.
  • Fig. 14 is an enlarged schematic diagram of the structure at D of the flat tube shown in Fig. 13;
  • 15 is a schematic diagram of the structure of a flat tube in another embodiment of the application.
  • Figure 16 is an enlarged schematic diagram of the structure of the flat tube shown in Figure 15 at E;
  • Fig. 17 is a schematic structural diagram of one of the forming plates of the flat tube shown in Fig. 16;
  • Fig. 18 is a schematic structural view of another forming plate of the flat tube shown in Fig. 16;
  • Fig. 19 is an enlarged schematic diagram of the structure of the forming plate shown in Fig. 17 at F;
  • FIG. 20 is a schematic structural diagram of a flat tube in another embodiment of the application.
  • heat exchanger 10
  • first header 20, second header; 30, flat tube; 31, forming plate; 311, 311a, 311b, limit part; 3111, bending section 3112, avoidance groove; 312, 312a, 312b, limit groove; 313, expansion section; 314, contraction section; 315, transition section; 316, corner; 317, side; 40, side plate; 50, fin.
  • a component when a component is said to be “installed on” another component, it can be directly on the other component or a central component may also exist. When a component is considered to be “installed on” another component, it can be directly installed on another component or a centered component may exist at the same time. When a component is considered to be “fixed” to another component, it can be directly fixed to the other component or there may be a centered component at the same time.
  • FIG. 1 is a schematic structural diagram of a heat exchanger 100 in an embodiment of this application.
  • the provided in this application is mainly used in air conditioning systems and can realize the heat exchange process of the refrigerant.
  • the heat exchanger 100 includes a first header 10, a second header 20, a flat tube 30, two side plates 40 and a plurality of fins 50.
  • first header 10 and the second header 20 are arranged parallel to each other.
  • the first header 10 is provided with a refrigerant inlet (not labeled), and the second header 20 is provided with a refrigerant outlet (not labeled).
  • both the first header 10 and the second header 20 are pipelines made of aluminum alloy materials.
  • the opposite ends of the flat tube 30 are respectively inserted on the first header 10 and the second header 20, and communicate with the first header 10 and the second header 20.
  • the flat tube 30 is used to provide refrigerant and A place for heat exchange outside.
  • the number of flat tubes 30 is at least one. If multiple flat tubes 30 are installed on the heat exchanger 100, the plurality of flat tubes 30 are parallel to each other and are all perpendicular to the first header 10 And the second header 20 to facilitate installation; the plurality of flat tubes 30 and the first header 10 and the second header 20 are fixed and sealed to each other by welding.
  • the flat tube 30 may be made of aluminum alloy material or other materials that are easy to conduct heat.
  • the two side plates 40 are parallel to the plurality of flat tubes 30 and are respectively arranged on the outside of the plurality of flat tubes 30.
  • the side plates 40 are used to fix the two collecting tubes and protect the flat tubes 30 and fins 50.
  • the tube 30 is arranged in parallel between the two side plates 40.
  • a plurality of fins 50 are arranged between two adjacent flat tubes 30 or between one of the flat tubes 30 and the side plate 40 along the longitudinal direction of the flat tube 30.
  • the flat tube 30, the fin 50 and the two side plates 40 constitute the heat exchange body of the heat exchanger 100.
  • the heat exchanger 100 When the heat exchanger 100 is working, an appropriate amount of refrigerant is injected into the first header 10 through the refrigerant inlet.
  • the refrigerant flows in the first header 10, the flat tube 30, and the second header 20, and is The plurality of fins 50 cooperate with each other to exchange heat with the outside air, and the refrigerant after heat exchange flows out of the heat exchanger 100 through the refrigerant outlet.
  • FIG. 2 is a schematic structural diagram of a flat tube 30 in an embodiment of the application.
  • the flat tube 30 includes two molding plates 31.
  • Each molding plate 31 is provided with a plurality of protrusions extending toward the other molding plate 31.
  • the two molding plates 31 interlock with each other and form multiple microchannels inside.
  • the two ends of the microchannel are respectively communicated with the first header 10 and the second header 20.
  • the edges of the two forming plates 31 need to be strictly aligned before welding, and the protrusions and protrusions on the two forming plates 31 are also aligned one by one, and then the flat tube 30 is formed by welding, and during the welding process In this case, if the relative position between the two forming plates 31 is slightly shifted, the welding quality of the forming plates 31 will be caused, and the leakage of the refrigerant will occur.
  • the convex part on the forming plate 31 may not be provided, and the refrigerant directly passes through the accommodating cavity where the two forming plates 31 are engaged for heat exchange.
  • each forming plate 31 of the present application is provided with a positioning structure, which is used to fix the relative position of the two forming plates 31 during welding, so as to avoid two forming plates 31 during welding.
  • the forming plate 31 is relatively displaced.
  • the positioning structure includes: a limiting portion 311 provided on one of the forming plates 31 and extending toward the other forming plate 31, and a limiting groove 312 provided at a corresponding position on the other forming plate 31, through which the two forming plates 31 pass
  • the limiting portion 311 and the limiting groove 312 are embedded with each other to limit the relative position deviation between the two forming plates 31.
  • FIG. 2 is a schematic structural diagram of a flat tube 30 in an embodiment of the application
  • FIG. 7 is a structural schematic diagram of a flat tube 30 in another embodiment of the application.
  • the cross section of the forming plate 31 is roughly rectangular, and the shape and size of the two forming plates 31 are basically the same. Further, in order to facilitate the installation of the flat tube 30 on the first header 10 and the second header 20 respectively, both ends of the forming plate 31 are treated with necking, so that the forming plate 31 forms a flat tube after welding. 30 can be adapted to the outer circumference of the tubular header.
  • the forming board 31 includes an expansion section 313 at the middle of the board surface and a contraction section 314 at the end of the board surface.
  • the width of the expansion section 313 is greater than the width of the contraction section 314, and a transition section 315 is formed between the expansion section 313 and the contraction section 314.
  • the contraction section 314 and the transition section 315 form the necking structure of the forming plate 31.
  • the contraction section 314 and the transition section 315 are respectively located at both ends of the forming plate 31 along the length direction, the expansion section 313 is located in the middle of the forming plate 31, and the two ends of the expansion section 313 are provided with a transition section 315 and a contraction in sequence. Section 314.
  • the shrinking trend of the transition section 315 changes linearly.
  • the positioning structure of the forming plate 31 can be arranged on the expansion section 313, the transition section 315 or the contraction section 314.
  • the positioning structure is arranged on the corresponding transition section 315, so as to utilize the waste material of the forming plate 31 when processing the necking structure.
  • the positioning structure is processed, or the positioning structure is processed at the same time as the necking structure is processed to simplify the processing procedure.
  • each forming plate 31 has four transition sections 315.
  • the transition sections 315 are respectively arranged on a corner 316 of the forming plate 31.
  • four transition sections 315 are provided on the forming plate 31.
  • the two positioning structures are respectively located on the four transition sections 315, so that the deviation between the two forming plates 31 is not easy to occur.
  • each molding plate 31 has two transition sections 315, and the two transition sections 315 take the center line in the width direction of the molding plate 31 as an axis to form an axisymmetric distribution.
  • two positioning structures are provided on the forming plate 31 and are respectively located on the two transition sections 315.
  • FIG. 2 is a schematic diagram of the structure of the flat tube 30 in an embodiment of the application
  • FIG. 3 is an enlarged schematic diagram of the structure of the flat tube 30 shown in FIG. 2 at A
  • FIG. 4 is FIG. 2
  • Fig. 5 is a schematic structural view of another forming plate 31 of the flat tube 30 shown in Fig. 2
  • Fig. 6 is a structural view of the forming plate 31 of Fig. 4
  • FIG. 7 is a schematic structural diagram of a flat tube 30 in another embodiment of the application.
  • the limiting portion 311 is protrudingly provided at the edge position of the forming plate 31 and can be bent to the other forming plate 31 to form a bending section 3111; the limiting groove 312 is opened at a corresponding position of the other forming plate 31 and penetrates the For the forming plate 31, referring to FIG. 3, the limiting groove 312 is set as an opening groove connected to the side surface 317 of the forming plate 31. After the limiting portion 311 is bent, the bending section 3111 on it is embedded in the limiting position. Inside the groove 312 and against the wall of the limiting groove 312.
  • the number of the limiting portion 311 of the forming plate 31 is at least one, and the limiting portion 311 has a strip-shaped convex structure.
  • the limiting groove 312 on the other molding plate 31 is a strip-shaped groove, and the size of the groove is adapted to the size of the limiting portion 311.
  • the limiting portion 311 is embedded in the limiting groove 312 to form a limiting structure for limiting the relative positions of the two forming plates 31.
  • the limiting portion 311 may also be configured as a convex structure with other shapes, for example, a convex structure with a square, trapezoidal, triangular or other irregular polygon in cross section, and the limiting groove 312 is set to correspond to the limiting portion 311
  • the shape can be realized as long as the limiting groove 312 and the limiting portion 311 are embedded in each other and restrict the relative deviation between the two forming plates 31.
  • the limiting portion 311 is provided on the transition section 315, and the length of the limiting portion 311 is greater than two-thirds of the hypotenuse length of the transition section 315, and the limiting portion 311 is provided on both sides There are avoiding grooves 3112 to facilitate bending the limiting portion 311 in the corresponding limiting slot 312 to form a bending section 3111.
  • the limiting portions 311 may be provided in pairs.
  • a pair of limiting portions 311 may be respectively provided on the two transition sections 315 at one end of the forming plate 31, or
  • the number of the limiting portion 311 and the limiting slot 312 can also be set to one, three or more, instead of being arranged in pairs, as long as the limiting portion 311 and the limiting slot 312 can cooperate with each other and position the forming plate 31 The position between.
  • the limiting portion 311 is configured as a bendable protrusion integrally formed on the side of the molding plate 31.
  • the limiting portion 311 may also be a protrusion fixed on the side of the forming plate 31 by welding, bonding, screwing, or the like.
  • FIG. 8 is a schematic structural diagram of a flat tube 30 in another embodiment of the application
  • FIG. 9 is an enlarged schematic diagram of the structure at C of the flat tube 30 shown in FIG. 8
  • FIG. 10 is a diagram 8 is a schematic structural view of one of the forming plates 31 of the flat tube 30 shown in FIG. 8
  • FIG. 11 is a schematic structural view of another forming plate 31 of the flat tube 30 shown in FIG. 8
  • FIG. 12 is a schematic view of the flat tube in another embodiment of the application Schematic.
  • the limiting portion 311 a is a protrusion formed by the forming plate 31 by stamping, the protrusion and the limiting groove 312 a are embedded in each other, and the limiting groove 312 a penetrates the forming plate 31.
  • the size of the limiting groove 312a is slightly larger than the size of the outer edge of the protrusion, so that the protrusion can be easily embedded in the limiting groove 312a.
  • the limiting groove 312 a may also be provided as a groove that is recessed on the forming plate 31 but does not penetrate the forming plate 31.
  • part of the material can be removed from the groove, and only part of the bottom wall close to the side wall of the groove is retained.
  • the cross-section of the protrusion is circular. It can be understood that in other embodiments, the cross-section of the protrusion may also be any one of rectangle, square, trapezoid or triangle, and the limiting groove 312a is set to The shape of the protrusion can be adapted as long as the protrusion and the limiting groove 312a are embedded in each other and the position between the two molding plates 31 can be positioned.
  • the protrusions may be provided in pairs, for example, a pair of protrusions may be respectively provided on the two transition sections 315 at one end of the forming plate 31, or convex There are two pairs, and they are respectively arranged on the four transition sections 315 at both ends of the forming plate 31.
  • the number and position of the limiting grooves 312a correspond to the protrusions.
  • the number of protrusions and the limiting groove 312a can be set to one, three, or more than three, as long as the limiting portion 311a and the limiting groove 312a can cooperate with each other to define the relative relationship between the two forming plates 31. Location is fine.
  • the protrusions and the limiting grooves 312a need to occupy part of the board surface space of the forming plate 31. Therefore, it may be preferable to provide a single-sided necking structure as shown in FIG. 8 on the forming plate 31 to make The transition section 315 has more usable space, which facilitates the provision of protrusions and limiting grooves 312a on this section.
  • FIG. 13 is a schematic structural diagram of a flat tube in another embodiment of the application
  • FIG. 14 is an enlarged schematic diagram of the structure of the flat tube shown in FIG. 13 at D
  • FIG. 15 is another application
  • Figure 16 is an enlarged schematic diagram of the structure of the flat tube shown in Figure 15 at E
  • Figure 17 is a structural schematic diagram of one of the forming plates of the flat tube shown in Figure 16
  • Figure 18 is a diagram 16 is a schematic structural view of another forming plate of the flat tube
  • FIG. 19 is an enlarged schematic view of the structure of the forming plate shown in FIG. 17 at F
  • FIG. 20 is a schematic structural view of a flat tube in another embodiment of the application.
  • the limiting portion 311b is formed by stamping from the surface of the forming plate 31 to form an elastic piece.
  • One end of the elastic piece is connected to the forming plate 31, and the other end is inclined with respect to the forming plate 31.
  • the elastic piece is embedded in the limiting groove 312b and extends out of the limiting groove 312b. Further, as shown in FIG. 15, the part of the elastic piece protruding from the limiting groove 312 b can be further bent to be tightly fastened to another forming plate 31.
  • the shape of the shrapnel is a trapezoidal sheet structure.
  • the other forming plate 31 is provided with a limiting groove 312b penetrating the surface of the plate, and the cross section of the limiting groove 312b is also trapezoidal.
  • the elastic shape can be set to other shapes, such as a circle, a square, a triangle, etc., and the limiting groove 312b is correspondingly set to a shape suitable for the elastic sheet, as long as the two can be matched with each other and positioned between the forming plates 31 Location is fine.
  • the elastic sheet is arranged on the transition section 315 to facilitate the processing of the forming plate 31.
  • the number of elastic pieces can be set to two or four, and the number of the limiting grooves 312b is set correspondingly.
  • the number of elastic pieces and the limiting groove 312b can be set to one, three or more than three, as long as the limiting portion 311b and the limiting groove 312b can cooperate with each other and position the forming plate 31.
  • the flat tube 30 provided by the present application is provided with mutually matched limiting portions and limiting grooves on two corresponding forming plates 31, which can effectively ensure that the two forming plates 31 do not have relative misalignment during welding, so that the flat tube The welding quality of 30 is improved. Therefore, the heat exchanger 100 with the flat tube 30 is not prone to leakage.

Abstract

本申请涉及一种扁管及换热器，该扁管包括两个成型板，每个所述成型板上均设置有多个朝向另一个成型板延伸的凸部，两个所述成型板相互扣合并在内部形成多个微通道；两个所述成型板中的一个设置有朝向另一个成型板延伸的限位部，另一个开设限位槽，两个所述成型板通过所述限位部以及限位槽之间的相互配合形成限位。该扁管能够有效提高两个成型板之间的定位精度，且该换热器不容易出现泄露的问题。

Description

扁管及换热器
相关申请
本申请要求2019年06月03日申请的，申请号为201920828703.1，发明创造名称为“扁管及换热器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及换热设备技术领域，特别是涉及扁管及换热器。
背景技术
现有换热器中的扁管是由两个成型板焊接而成，扁管的两个成型板在焊接过程中需紧密对齐，方可焊接良好，使换热器无泄漏。但是现有的成型板在实际焊接过程中容易发生偏移，使得焊接效果不好，进而导致换热器出现泄露的问题。
发明内容
根据本申请的各种实施例，首先提供一种扁管，包括两个成型板，两个所述成型板中的一个设置有朝向另一个成型板延伸的限位部，另一个开设有限位槽，两个所述成型板通过所述限位部以及限位槽之间的配合相互限位。
上述扁管通过在两个对应的成型板上设置相互配合的限位部及限位槽，使得两个成型板通过该限位部和限位槽的配合保持于稳定的相对位置，提高两个成型板之间的定位精度，在这种限位配合下焊接两个成型板形成扁管，可以使扁管的焊接质量得到提升，以改善扁管由于焊接质量不佳而导致的泄漏问题。
在其中一个实施例中，所述限位部设置在所述成型板的边缘位置，且向另一所述成型板弯折并形成折弯段，所述限位槽开设在另一成型板相对应的位置并贯穿所述成型板，所述折弯段嵌设在所述限位槽内并抵持所述限位槽的槽壁。
如此设置，在加工成型板时，可以同时在边缘位置加工出限位部，并在对齐两块成型板边缘后，向对侧的成型板弯折所述限位部以形成折弯段，这样简化了两个成型板的加工工艺与装配过程，同时，折弯段抵持限位槽的槽壁，可以使两个成型板之间的相对位置关系更加稳固。
在其中一个实施例中，所述限位部为所述成型板通过冲压形成的凸起，所述凸起与所述限位槽相互嵌设；
所述限位槽贯穿所述成型板；或者，所述限位槽为带有底面的凹槽。
如此设置，以冲压方式在成型板上形成凸起，可以简化限位结构的加工工序。
在其中一个实施例中，所述凸起的截面为圆形、矩形、正方形、梯形或三角形中的任意一种。
在其中一个实施例中，所述限位部为弹片，所述弹片的一端连接于所述成型板，另一端相对所述成型板倾斜设置。
在其中一个实施例中，所述成型板通过冲压形成所述弹片。
在其中一个实施例中，所述限位槽贯穿所述成型板，所述弹片嵌设于所述限位槽内并伸出所述限位槽。
所述成型板包括位于板面中部的扩展段以及位于板面端部的收缩段，所述扩展段的宽度大于所述收缩段的宽度，且所述扩展段与所述收缩段之间形成过渡段，所述限位部及所述限位槽分别设置于对应所述成型板的过渡段上。
如此设置，收缩段的设置有利于扁管与换热器中的集流管插接，同时，在成型板上加工收缩段及过渡段时，会产生一些废料，利用这部分废料制成限位部可以减少原材料的浪费，同时，将限位部及限位槽设置于成型板的过渡段上，也可以充分利用成型板的板面空间。
在其中一个实施例中，每个成型板具有四个所述过渡段，所述过渡段分别设置于所述成型板的一个角部上；或者
每个所述成型板上具有两个所述过渡段，两个所述过渡段以所述成型板宽度方向上的中心线为轴，形成对称分布。
如此设置，在成型板整体的长度一定，收缩段处板宽一定时，在成型板上设置两个过渡段，可以使过渡段的长度更长，便于在过渡段上对应设置定位结构。
本申请还提供一种换热器，所述换热器包括上述任一实施方式所述的扁管。
利用本申请中的扁管形成换热器时，由于扁管的焊接质量高，由焊接不良导致的泄露问题可以被减少乃至避免，因此，形成的换热器也不容易出现泄露的问题。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的热河一者的范围的限制。
图1为本申请实施例1的换热器的结构示意图；
图2为本申请实施例1中扁管的结构示意图；
图3为图2中所示扁管在A处结构的放大示意图；
图4为图2所示扁管的其中一个成型板的结构示意图；
图5为图2所示扁管的另一成型板的结构示意图；
图6为图4所示成型板在B处结构的放大示意图；
图7为本申请另一实施例中扁管的结构示意图；
图8为本申请又一实施例中扁管的结构示意图；
图9为图8所示扁管在C处结构的放大示意图；
图10为图8所示扁管的其中一个成型板的结构示意图；
图11为图8所示扁管的另一个成型板的结构示意图；
图12为本申请另一实施例中的扁管的结构示意图；
图13为本申请又一实施例中的扁管的结构示意图；
图14为图13所示扁管在D处结构的放大示意图；
图15为本申请另一实施例中的扁管的结构示意图；
图16为图15所示扁管在E处结构的放大示意图；
图17为图16所示扁管的其中一个成型板的结构示意图；
图18为图16所示扁管的另一个成型板的结构示意图；
图19为图17所示成型板在F处结构的放大示意图；
图20为本申请另一实施例中的扁管的结构示意图。
图中：100、换热器；10、第一集流管；20、第二集流管；30、扁管；31、成型板；311、311a、311b、限位部；3111、折弯段；3112、避让槽；312、312a、312b、限位槽；313、扩展段；314、收缩段；315、过渡段；316、角部；317、侧面；40、边板；50、翅片。
具体实施方式
以下将对本申请提供的扁管及换热器作进一步说明。
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“安装于”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“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本申请中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。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例的目的，不是旨在于限制本申请。本申请中所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请一并参阅图1，图1为为本申请一实施例中的换热器100的结构示意图。本申请提供的主要应用于空调系统，并能够实现冷媒的换热过程。该换热器100包括第一集流管10、第二集流管20、扁管30、两个边板40及多个翅片50。
为便于换热器100的安装，第一集流管10及第二集流管20相互平行设置。第一集流管10上开设有冷媒进液口(未标号)，第二集流管20上开设有冷媒出液口(未标号)。在本实施例中，第一集流管10及第二集流管20均是由铝合金材料制成的管路。
扁管30的相对两端分别插设在第一集流管10及第二集流管20上，并连通第一集流管10及第二集流管20，扁管30用以提供冷媒与外界换热的场所。在本实施例中，扁管30的数量为至少一根，若多根扁管30安装在换热器100上时，则多个扁管30相互平行，且均垂直于第一集流管10及第二集流管20，以便于安装；多个扁管30与第一集流管10及第二集流管20之间通过焊接的方式相互固定并密封。扁管30可以是由铝合金材料或者其他易导热的材料制成。
两个边板40平行于多个扁管30，且分别设置在多个扁管30的外侧，边板40用以固定安装两根集流管并保护扁管30及翅片50，多个扁管30平行设置在两个边板40之间。
多个翅片50沿扁管30的纵向设置在相邻两个扁管30之间或者其中一个扁管30与边板40之间。扁管30、翅片50及两个边板40构成换热器100的热交换主体。
换热器100工作时，经过冷媒进液口向第一集流管10内加注适量的冷媒，冷媒在第一集流管10、扁管30及第二集流管20内流动，并与多个翅片50相互配合，与外界空气进行热量交换，热交换后的冷媒通过冷媒出液口流出换热器100。
请一并参阅图2，图2为本申请一实施例中的扁管30的结构示意图。扁管30包括两个成型板31，每个成型板31上均设置有多个朝向另一个成型板31延伸的凸部，两个成型板31相互扣合并在内部形成多个微通道，多个微通道的两端分别与第一集流管10及第二集流管20连通。传统技术中，两个成型板31焊接前需将边缘严格对齐，并保证两块成型板31上的凸部与凸部之间也一一对齐，再通过焊接形成扁管30，而在焊接过程中，若两个成型板31之间的相对位置稍有偏移，则会造成成型板31焊接的质量问题，进而出现冷媒的泄露现象。
当然，成型板31上的凸部也可以不设置，冷媒直接通过两个成型板31相扣合的容置腔进行换热。
为了避免成型板31在焊接时出现偏移的现象，本申请的每个成型板31上设有定位结构，在焊接时用以固定两个成型板31的相对位置，避免在焊接过程中两个成型板31发生相对位移。该定位结构包括：设置于其中一个成型板31上并朝向另一个成型板31延伸的限位部311，以及设置于另一个成型板31上对应位置的限位槽312，两个成型板31通过限位部311以及限位槽312之间的相互嵌设以限制两个成型板31之间的相对位置偏移。
请一并参阅图2及图7，图2为本申请一实施例中的扁管30的结构示意图，图7为本申请另一实施例中的扁管30的结构示意图。
成型板31的截面大致呈长方形结构，且两个成型板31的板面形状大小基本一致。进一步地，为了便于使扁管30分别安装于第一集流管10及第二集流管20上，成型板31的两端均采用缩口处理，使成型板31在焊接后形成的扁管30可以与管状的集流管外周相适配。
成型板31包括位于板面中部的扩展段313以及位于板面端部的收缩段314，扩展段313的宽度大于收缩段314的宽度，且扩展段313与收缩段314之间形成过渡段315。收缩段314及过渡段315形成成型板31的缩口结构。
在其中一个实施例中，收缩段314及过渡段315分别位于成型板31沿长度方向的两端，扩展段313位于成型板31的中部，扩展段313的两端依次设置有过渡段315及收缩段314。优选地，过渡段315的收缩趋势呈线性变化。
成型板31的定位结构可以设置在扩展段313、过渡段315或收缩段314上，优选地，定位结构设置在对应的过渡段315上，以利用成型板31在加工形成缩口结构时的废料加工定位结构，或者，在加工缩口结构时一并加工出定位 结构，以简化加工工序。
在其中一个实施例中，如图2所示，每个成型板31具有四个过渡段315，过渡段315分别设置于成型板31的一个角部316上，对应地，成型板31上设置四个定位结构分别位于四个过渡段315上，使得两个成型板31之间不易发生偏移。
在其中一个实施例中，如图7所示，每个成型板31上具有两个过渡段315，两个过渡段315以成型板31宽度方向上的中心线为轴，形成轴对称分布。对应地，成型板31上设置两个定位结构分别位于两个过渡段315上。当形成的收缩段314的宽度一定且成型板31的长度一定时，在成型板31宽度方向的一侧加工缩口结构，可以使过渡段315的长度更大，更加便利于在该段上设置定位结构。
下面详细阐释两个成型板31之间定位结构的具体实施方式，且以下描述的各个实施例与上述不同形状的成型板31均可以自由组合。
实施例一：
请一并参阅图2至图7，图2为本申请一实施例中的扁管30的结构示意图；图3为图2所示扁管30的A处结构的放大示意图；图4为图2所示扁管30的其中一个成型板31的结构示意图；图5为图2所示扁管30的另一个成型板31的结构示意图；图6为图4所示成型板31的B处结构的放大示意图；图7为本申请另一实施例中的扁管30的结构示意图。
限位部311凸设在成型板31的边缘位置，且能够向另一成型板31弯折形成折弯段3111；限位槽312开设在另一成型板31相对应的位置，且贯穿所述成型板31，参考图3中所示，限位槽312设置为连通至成型板31的侧面317的开口槽，限位部311在弯折后，其上的折弯段3111嵌设在限位槽312内并抵持 限位槽312槽壁。
成型板31的限位部311的数量为至少一个，且限位部311呈条状凸起结构。对应地，另一成型板31上的限位槽312呈条状的凹槽，且凹槽尺寸与限位部311的尺寸相适应。限位部311嵌入限位槽312内，以形成限位两个成型板31相对位置的限位结构。
可以理解，限位部311还可以设置为其他形状的凸起结构，例如截面为正方形、梯形、三角形或其他不规则的多边形的凸起结构，限位槽312设置为与限位部311对应的形状，只要能实现限位槽312与限位部311相互嵌设并限制两个成型板31之间的相对偏移即可。
进一步地，为便于嵌入限位槽312，限位部311设置在过渡段315上，且限位部311的长度大于过渡段315斜边长度的三分之二，限位部311的两侧开设有避让槽3112，以便于向对应的限位槽312内弯折限位部311形成折弯段3111。
为更好地限位两个成型板31的位置，限位部311可以成对设置，例如，一对限位部311可以分别设置于成型板31一端的两个过渡段315上，或者，限位部311有两对，并分别设置于成型板31两端的四个过渡段315上，限位槽312的数量及位置对应于限位部311设置。
可以理解，限位部311与限位槽312的数量也可以设置为一个、三个或者更多，而不成对设置，只要能实现限位部311与限位槽312相互配合并定位成型板31之间的位置即可。
在本实施例中，限位部311设置为成型板31侧边一体形成的可弯折凸起。当然，在其它实施例中，限位部311也可以是通过焊接、粘结、螺接等方式固定在成型板31侧边的凸起。
实施例二
请一并参阅图8至图12，图8为本申请另一实施例中的扁管30的结构示意图；图9为图8所示扁管30的C处结构的放大示意图；图10为图8所示扁管30的其中一个成型板31的结构示意图；图11为图8所示扁管30的另一个成型板31的结构示意图；图12为本申请另一实施例中的扁管的结构示意图。
限位部311a为成型板31通过冲压形成的凸起，凸起与限位槽312a相互嵌设，限位槽312a贯穿成型板31。限位槽312a的尺寸略大于凸起的外沿尺寸，使得凸起能够便于嵌设于限位槽312a内。
在其他实施方式中，限位槽312a也可以设置为在成型板31上凹陷但不贯穿成型板31的凹槽。在另外的实施方式中，凹槽也可以去除部分材料，仅保留靠近凹槽侧壁的部分底壁。
在本实施例中，凸起的截面为圆形，可以理解，在其他实施方式中，凸起的截面还可以是矩形、正方形、梯形或三角形中的任意一种，限位槽312a设置为与凸起相适应的形状，只要能够实现凸起与限位槽312a相互嵌设并定位两个成型板31之间的位置即可。
进一步地，为更好地限位两个成型板31的相对位置，凸起可以成对设置，例如，一对凸起可以分别设置于成型板31一端的两个过渡段315上，或者，凸起有两对，并分别设置于成型板31两端的四个过渡段315上，限位槽312a的数量及位置对应于凸起设置。
可以理解，凸起与限位槽312a的个数可以设置为一个、三个或者三个以上，只要能实现限位部311a与限位槽312a相互配合以限定两个成型板31之间的相对位置即可。
此外，在本实施方式中，凸起及限位槽312a需要占用成型板31的部分 板面空间，因此，可以优选在成型板31上设置如图8所示的单侧缩口结构，以使过渡段315的可利用空间更多，便于在该段上设置凸起及限位槽312a。
实施例三
请一并参阅图13至图20，图13为本申请另一实施例中的扁管的结构示意图；图14为图13所示扁管在D处结构的放大示意图；图15为本申请另一实施例中的扁管的结构示意图；图16为图15所示扁管在E处结构的放大示意图；图17为图16所示扁管的其中一个成型板的结构示意图；图18为图16所示扁管的另一个成型板的结构示意图；图19为图17所示成型板在F处结构的放大示意图；图20为本申请另一实施例中的扁管的结构示意图。
限位部311b由成型板31的板面通过冲压形成弹片，该弹片一端连接于成型板31，另一端相对于成型板31倾斜设置，弹片嵌设于限位槽312b内并伸出限位槽312b。进一步地，如图15所示，弹片伸出限位槽312b的部分可以再进一步通过折弯使其紧扣另一成型板31。
进一步地，弹片的形状为梯形的片状结构。对应地，另一成型板31上开设有贯穿板面的限位槽312b，且限位槽312b的截面同样为梯形。
可以理解，弹性的形状可以设置成其他形状，例如圆形、正方形、三角形等，限位槽312b对应设置成与弹片相适应的形状，只要能实现两者相互配合并定位成型板31之间的位置即可。
在其中一个实施例中，弹片设置在过渡段315上，以便于成型板31的加工。
为更好地限位两个成型板31的位置，弹片可以设置为两个或四个，限位槽312b的个数对应设置。
可以理解，弹片与限位槽312b的个数可以设置为一个、三个或者三个以 上，只要能实现限位部311b与限位槽312b相互配合并定位成型板31之间的位置即可。
本申请提供的扁管30通过在两个对应的成型板31上设置相互配合的限位部及限位槽，能够在焊接时有效保证两个成型板31之间不发生相对错位，使得扁管30的焊接质量得到提升，因而，具有该扁管30的换热器100不容易出现泄露的问题。
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，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种扁管，包括两个成型板，其特征在于，两个所述成型板中的一个设置有朝向另一个成型板延伸的限位部，另一个开设有限位槽，两个所述成型板通过所述限位部以及限位槽之间的配合相互限位。
  2. 根据权利要求1所述的扁管，其特征在于，所述限位部设置在所述成型板的边缘位置，且向另一所述成型板弯折并形成折弯段，所述限位槽开设在另一成型板相对应的位置并贯穿所述成型板，所述折弯段嵌设在所述限位槽内并抵持所述限位槽的槽壁。
  3. 根据权利要求1所述的扁管，其特征在于，所述限位部为所述成型板通过冲压形成的凸起，所述凸起与所述限位槽相互嵌设；
    所述限位槽贯穿所述成型板；或者，
    所述限位槽为带有底面的凹槽。
  4. 根据权利要求3所述的扁管，其特征在于，所述凸起的截面为圆形、矩形、正方形、梯形或三角形中的任意一种。
  5. 根据权利要求1所述的扁管，其特征在于，所述限位部为弹片，所述弹片的一端连接于所述成型板，另一端相对所述成型板倾斜设置。
  6. 根据权利要求6所述的扁管，其特征在于，所述成型板通过冲压形成所述弹片。
  7. 根据权利要求6所述的扁管，其特征在于，所述限位槽贯穿所述成型板，所述弹片嵌设于所述限位槽内并伸出所述限位槽。
  8. 根据权利要求1所述的扁管，其特征在于，所述成型板包括位于板面中部的扩展段以及位于板面端部的收缩段，所述扩展段的宽度大于所述收缩段的宽度，且所述扩展段与所述收缩段之间形成过渡段，所述限位部及所述限位槽分别设置于对应所述成型板的过渡段上。
  9. 根据权利要求8所述的扁管，其特征在于，每个成型板具有四个所述过渡段，所述过渡段分别设置于所述成型板的一个角部上；或者
    每个所述成型板上具有两个所述过渡段，两个所述过渡段以所述成型板宽度方向上的中心线为轴，形成对称分布。
  10. 一种换热器，其特征在于，所述换热器包括如权利要求1至9任一项所述的扁管。
PCT/CN2020/093131 2019-06-03 2020-05-29 扁管及换热器 WO2020244446A1 (zh)

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