WO2022166554A1 - 换热器及空调设备 - Google Patents

换热器及空调设备 Download PDF

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Publication number
WO2022166554A1
WO2022166554A1 PCT/CN2022/071785 CN2022071785W WO2022166554A1 WO 2022166554 A1 WO2022166554 A1 WO 2022166554A1 CN 2022071785 W CN2022071785 W CN 2022071785W WO 2022166554 A1 WO2022166554 A1 WO 2022166554A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
twisted
segment
area
finned
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/071785
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English (en)
French (fr)
Inventor
王冠军
兰兆忠
丁二刚
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 WO2022166554A1 publication Critical patent/WO2022166554A1/zh
Priority to US18/230,902 priority Critical patent/US12405063B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • F28D1/0476—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0067—Indoor units, e.g. fan coil units characterised by heat exchangers by the shape of the heat exchangers or of parts thereof, e.g. of their fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • 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
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—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 and extending longitudinally
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the present application relates to the technical field of refrigeration, and in particular, to a heat exchanger and an air conditioner.
  • the heat exchanger In the field of refrigeration technology, the heat exchanger, as an important component of the four major components of refrigeration, plays the role of heat exchange with the outside world.
  • the heat exchanger usually includes headers, flat tubes connected to the headers, and fins arranged between the flat tubes.
  • the heat exchanger needs to be bent to meet specific installation requirements, and fins do not need to be provided at the bent portion of the flat tube. Therefore, the existing flat tubes are usually divided into a winged area and a wingless area.
  • the winged area is located at both ends of the flat tube, and the fins are arranged between the winged areas of the adjacent flat tubes, and the wingless area is located in the flat tube. the middle of the.
  • the length of the finless area of the existing flat tube is set too short, which causes the heat exchanger to break after bending, or the length of the finless area is set too long, resulting in the problem of material waste.
  • the application provides a heat exchanger, the heat exchanger includes fins and a plurality of flat tubes arranged in parallel, the flat tubes include a first finned area, a second finned area, and a connection between the first finned area and the second finned area.
  • the fins are provided between adjacent first finned regions and between adjacent second finned regions.
  • One end of the wingless area connected to the first winged area is twisted to form a first twisted segment, and one end of the wingless area connected to the second winged area is twisted to form a second twisted segment.
  • the part in between forms a straight section, and the first twisted section and the second twisted section are twisted in the same direction by a second angle b, so that the straight sections on the plurality of flat tubes are partially stacked on another straight section in the same direction.
  • the straight segment can be bent so that the first finned area is rotated by a first angle a relative to the second finned area.
  • the length of the wingless area is L
  • the length of the first torsion section and the second torsion section are the same, both are S
  • 50° ⁇ b ⁇ 90° When the second angle b ⁇ 90°, it is favorable for the adjacent straight sections to be stacked together. When b ⁇ 50°, it is favorable to bend the straight section, so that the first winged area is rotated by the first angle a relative to the second winged area.
  • the length of the straight section is M ⁇ 10W, which can prevent the length of the finless area of the heat exchanger from being too long and affect the heat exchange efficiency of the heat exchanger. Moreover, the length of the straight section is M ⁇ 10W, which is conducive to saving the material of the flat tube and reducing the production cost of the heat exchanger.
  • the thickness h of the flat tube satisfies W/20 ⁇ h ⁇ W/5.
  • the thickness of the flat tube h ⁇ W/20 is beneficial to the flat tube having better structural strength, and preventing the flat tube from being too thin to cause the flat tube to break in the process of bending and torsion.
  • the thickness of the flat tube h ⁇ W/5 can prevent the thickness of the flat tube from being too large, which makes the flat tube difficult to bend and twist.
  • the twist angle of the straight section stacked on the outermost side is b1
  • the twist angle of the straight section stacked on the innermost side is b2
  • the twist angle of the straight section stacked on the outermost side and the innermost side is b2.
  • the flat tube is a stainless steel part.
  • the flat tube made of stainless steel is easy to be processed and formed, and the ductility of stainless steel is good, and it is easy to bend and twist the flat tube.
  • the fins and the flat tubes are welded. Welding can make the connection between the fin and the flat tube more firm, and the welding process is relatively mature, the operation is simple, and the manufacturing cost of the heat exchanger can be reduced.
  • W ⁇ 10mm In an embodiment of the present application, W ⁇ 10mm. This arrangement is beneficial to the processing and manufacture of the flat tube.
  • the present application further provides an air conditioner, including the heat exchanger described in any one of the above embodiments.
  • the first torsion section and the straight section do not break.
  • the second torsion section does not break. Only when the slope of the curve at the connection with the straight segment is less than 0.6 can it be satisfied that no fracture occurs between the second torsion segment and the straight segment.
  • FIG. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the application.
  • FIG. 2 is a first structural schematic diagram of a heat exchanger according to another embodiment of the present application.
  • FIG. 3 is a second structural schematic diagram of a heat exchanger according to another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a flat tube according to another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a heat exchanger according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a heat exchanger according to another embodiment of the present application.
  • FIG. 7 is a front view of a heat exchanger according to still another embodiment of the application.
  • FIG. 8 is a side view of a heat exchanger according to still another embodiment of the application.
  • Reference numerals 1, first header; 2, second header; 3, fins; 4, flat tubes; 41, first winged area; 42, second winged area; 43, no wings 431, the first twisted segment; 432, the second twisted segment; 433, the straight segment.
  • a component when referred to as being “mounted on” another component, it can be directly mounted on the other component or there may also be an intervening component.
  • a component When a component is considered to be “set on” another component, it may be directly set on the other component or there may be a co-existing centered component.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may also be an intervening component.
  • FIGS. 6-8 Please refer to Figures 1-7, wherein the flat tubes 4 of the heat exchanger in Figure 1 are not twisted, the flat tubes 4 of the heat exchanger in Figures 2-5 are twisted by a second angle b, and the heat exchangers in Figures 6-8
  • the flat tube 4 of the heat exchanger is twisted by the second angle b, and the straight section 433 of the heat exchanger of FIGS. 6-8 is bent by the first angle a.
  • the present application provides a heat exchanger, which includes fins 3 and a plurality of flat tubes 4 arranged in parallel.
  • the flat tubes 4 include a first finned area 41 , a second finned area 42 and a connection to the first finned area.
  • the heat exchanger also includes a first header 1 and a second header 2, a plurality of first finned regions 41 are connected to the first header 1, and a plurality of second finned regions 42 are connected to the second header 2.
  • One end of the wingless region 43 connected to the first winged region 41 is twisted to form a first twisted segment 431
  • one end of the wingless region 43 connected to the second winged region 42 is twisted to form a second twisted segment 432
  • the first twisted portion of the wingless region 43 is twisted to form a second twisted segment 432 .
  • the portion between the segment 431 and the second twisted segment 432 forms a straight segment 433 .
  • the first twisted section 431 and the second twisted section 432 are twisted in the same direction by a second angle b, so that the straight sections 433 on the plurality of flat tubes 4 are partially stacked on another straight section 433 in the same direction.
  • the straight section 433 can be bent to make the first finned area 41 rotate relative to the second finned area 42 by a first angle a.
  • the length of the wingless area 43 is L
  • the length of the first twisted section 431 and the second twisted section 432 are the same, both are S
  • the length of the straight section 433 is M
  • L 2S+M, where S ⁇ W( ⁇ /2+1), M ⁇ W, where W is the width of the flat tube 4 .
  • the first torsion section 431 and the straight section 433 do not break, and similarly , only when the slope of the curve at the connection between the second torsion section 432 and the straight section 433 is less than 0.6, it is satisfied that no fracture occurs between the second torsion section 432 and the straight section 433 .
  • the first torsion segment 431 and the second torsion segment 432 are twisted in the same direction by a second angle b to satisfy the condition that 50° ⁇ b ⁇ 90°.
  • b 90°
  • the adjacent straight sections 433 are located on the same plane and cannot be stacked together. Therefore, when the second angle b ⁇ 90°, it is beneficial for the adjacent straight sections 433 to be stacked together. .
  • the straight section 433 of the heat exchanger needs to be bent to make the first finned area 41 rotate relative to the second finned area 42 by the first angle a, and the smaller the second angle b, the straight section 433 and the first finned area
  • the first angle a of the straight section 433 is bent to satisfy 0° ⁇ a ⁇ 180°.
  • the heat exchanger can bend the straight section 433 according to actual needs, which is beneficial to improve the use flexibility of the heat exchanger.
  • the length of the straight section 433 also satisfies M ⁇ 10W.
  • the straight section 433 belongs to the finless area 43 of the flat tube 4, that is, the fins 3 are not provided on the straight section 433, the straight section 433 cannot complete heat exchange. Therefore, the length of the straight section 433 is M ⁇ 10W, which can prevent the length of the finless region 43 of the heat exchanger from being too long and affecting the heat exchange efficiency of the heat exchanger.
  • the length of the straight section 433 is M ⁇ 10W, which is beneficial to saving the material of the flat tube 4 and reducing the production cost of the heat exchanger.
  • the thickness h of the flat tube 4 satisfies W/20 ⁇ h ⁇ W/5.
  • the thickness h ⁇ W/20 of the flat tube 4 is beneficial for the flat tube 4 to have better structural strength and prevents the flat tube 4 from being broken due to being too thin during the bending and twisting process.
  • the thickness h ⁇ W/5 of the flat tube 4 can prevent the flat tube 4 from being too thick, which makes the flat tube 4 difficult to bend and twist.
  • the twist angle of the straight section 433 stacked on the outermost side is b1
  • the twist angle of the straight section 433 stacked on the innermost side is b2
  • the twist angle of the straight section 433 stacked on the innermost side is b2.
  • the inclination angle formed by the center of the straight section 433 superimposed on the outermost and the horizontal plane is c1
  • the inclination angle formed by the center of the straight section 433 superimposed on the innermost and the horizontal plane is c2
  • the center of the straight section 433 between the outer side and the innermost side forms an inclination angle c3 with the horizontal plane.
  • the straight sections 433 stacked on the outermost side are only subjected to the pressing action of the adjacent straight sections 433 in the direction toward the inside.
  • the straight sections 433 stacked on the innermost side are only subjected to the pressing action of the adjacent straight sections 433 in the direction toward the outside.
  • the flat tube 4 is a stainless steel part.
  • the flat tube 4 made of stainless steel is easy to be processed and formed, and the ductility of stainless steel is good, which is easy to bend and twist the flat tube 4 .
  • the flat tube 4 may also be an aluminum alloy part, and the aluminum alloy has better thermal conductivity, which can improve the heat exchange efficiency of the heat exchanger.
  • the fins 3 and the flat tubes 4 are welded. Welding can make the connection between the fins 3 and the flat tubes 4 more firm, and the welding process is relatively mature, the operation is simple, and the manufacturing cost of the heat exchanger can be reduced.
  • width W of the flat tube 4 satisfies that W ⁇ 10 mm. This arrangement is beneficial to the processing and manufacture of the flat tube 4 .
  • the present application further provides an air conditioner, including the heat exchanger described in any one of the above embodiments.

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

Abstract

一种换热器及空调设备，该换热器包括翅片(3)和扁管(4)，扁管(4)包括第一有翅区(41)、第二有翅区(42)以及无翅区(43)。无翅区(43)连接第一有翅区(41)的一端扭转形成第一扭转段(431)，无翅区(43)连接第二有翅区(42)的一端扭转形成第二扭转段(432)，无翅区(43)的第一扭转段(431)和第二扭转段(432)之间的部分形成平直段(433)。无翅区(43)的长度为L，第一扭转段(431)和第二扭转段(432)的长度相同，均为S，平直段(433)的长度为M，L＝2S+M，其中，S≥W(π/2+1)，M≥W，其中，W为扁管(4)的宽度。

Description

换热器及空调设备
相关申请
本申请要求2021年2月7日申请的，申请号为202120350926.9，发明名称为“换热器及空调设备”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
本申请涉及制冷技术领域，特别是涉及一种换热器及空调设备。
背景技术
在制冷技术领域中，换热器作为制冷四大部件中的重要部件，起到与外界进行热交换的作用。换热器通常包括集流管、与集流管连接的扁管以及设于扁管之间的翅片。在一些特定的空调中，需要将换热器折弯，以满足特定的安装要求，并且，在扁管发生弯折的部分不需要设置翅片。因此，现有的扁管通常分为有翅区和无翅区，有翅区位于扁管的两端，且翅片设于相邻扁管的有翅区之间，无翅区位于扁管的中部。但是，现有的扁管的无翅区的长度设置过短，导致换热器弯折后发生断裂，或者无翅区的长度设置过长，导致材料浪费的问题。
发明内容
有鉴于此，有必要提供一种换热器及空调设备，解决现有技术中，扁管的无翅区的长度设置过短，导致换热器弯折后发生断裂，以及无翅区的长度设置过长，导致材料浪费的问题。
本申请提供一种换热器，该换热器包括翅片和多个并列设置的扁管，扁管包括第一有翅区、第二有翅区以及连接第一有翅区和第二有翅区的无翅区，相邻第一有翅区之间以及相邻第二有翅区之间均设有翅片。无翅区连接第一有翅区的一端扭转形成第一扭转段，无翅区连接第二有翅区的一端扭转形成第二扭转段，无翅区的第一扭转段和第二扭转段之间的部分形成平直段，且第一扭转段和第二扭转段朝相同方向扭转第二角度b，以使多个扁管上的平直段朝向相同方向依次部分叠置在另一平直段上；平直段能够弯折以使第一有翅区相对第二有翅区转动第一角度a。无翅区的长度为L，第一扭转段和第二扭转段的长度相同，均为S，平直段的长度为M，L＝2S+M，其中，S≥W(π/2+1)，M≥W，其中，W为扁管的宽度。
于本申请一实施例中，50°≤b<90°。第二角度b<90°时，有利于相邻的平直段叠置在一起。当b≥50°时，有利于对平直段进行弯折，以使第一有翅区相对第二有翅区转动第一角度a。
于本申请一实施例中，0°＜a≤180°。如此，换热器能够根据实际需要对平直段进行弯折，有利于提高换热器的使用灵活性。
于本申请一实施例中，M≤10W。平直段的长度为M≤10W，能够避免换热器的无翅区的长度过长而影响换热器的换热效率。并且，平直段的长度为M≤10W有利于节约扁管的材料，降低换热器的生产成本。
于本申请一实施例中，扁管的厚度h满足，W/20≤h≤W/5。扁管的厚度h≥W/20，有利于扁管具有较好的结构强度，防止扁管太薄造成扁管在弯折和扭转的过程中发生断裂。扁管的厚度h≤W/5，能够防止扁管的厚度过大，导致扁管不易弯折和扭转。
于本申请一实施例中，叠置在最外侧的平直段的扭转角度为b1，叠置在 最内侧的平直段的扭转角度为b2，叠置在最外侧与最内侧之间的平直段的扭转角度为b3，满足b3＝b，且b1<b3，b2<b3。如此设置，有利于所有相邻的平直段叠置在一起。
于本申请一实施例中，扁管为不锈钢件。不锈钢材质的扁管易于加工成型，且不锈钢的延展性较好，易于扁管的弯折和扭转。
于本申请一实施例中，翅片与扁管焊接。焊接可以使翅片与扁管的连接更加牢固，且焊接工艺较为成熟，操作简单，能够降低换热器的制造成本。
于本申请一实施例中，W≥10mm。如此设置，有利于扁管的加工制造。
本申请还提供一种空调设备，包括以上任意一个实施例所述的换热器。
本申请提供的换热器及空调设备，第一扭转段和第二扭转段的边缘轮廓曲线近似函数y＝arctan(x)。在扁管发生扭转的过程中，第一扭转段与平直段的连接处的曲线斜率小于0.6时，才能满足第一扭转段与平直段之间不发生断裂，同样地，第二扭转段与平直段的连接处的曲线斜率小于0.6时，才能满足第二扭转段与平直段之间不发生断裂。而由函数y＝arctan(x)可知，当x取π/4+1/2时，函数y＝arctan(x)在x＝π/4+1/2处的斜率约等于0.599，满足斜率小于0.6的条件，当x取-(π/4+1/2)时，函数y＝arctan(x)在x＝-(π/4+1/2)处的斜率约等于0.599，满足斜率小于0.6的条件。并且，由函数y＝arctan(x)的图像可知，函数y＝arctan(x)图像上的点在x大于π/4+1/2的范围内的斜率越来越小，且函数y＝arctan(x)图像上的点在x小于-(π/4+1/2)的范围内的斜率越来越小。因此，函数y＝arctan(x)图像上的点在区间[-(π/4+1/2)，π/4+1/2]之外的任意处的斜率均小于0.6，而区间[-(π/4+1/2)，-π/4+1/2]的长度为π/2+1。又因为S与函数y＝arctan(x)定义域的长度呈正相关，且考虑到扁管的宽度为W，而S与扁管的宽度W呈正相关的关系。因此我们取，S≥(π/2+1)W时，第 一扭转段与平直段之间以及第二扭转段与平直段之间均不发生断裂。而第一扭转段的长度S或者第二扭转段的长度S只需取稍大于W(π/2+1)的值，即可解决无翅区的长度设置过长，导致材料浪费的问题。
附图说明
图1为本申请一实施例的换热器的结构示意图。
图2为本申请另一实施例的换热器的结构示意图一。
图3为本申请另一实施例的换热器的结构示意图二。
图4为本申请另一实施例的扁管的结构示意图。
图5为本申请另一实施例的换热器的结构原理图。
图6为本申请又一实施例的换热器的结构示意图。
图7为本申请又一实施例的换热器的主视图。
图8为本申请又一实施例的换热器的侧视图。
图9为函数y＝arctan(x)的图像。
附图标记：1、第一集流管；2、第二集流管；3、翅片；4、扁管；41、第一有翅区；42、第二有翅区；43、无翅区；431、第一扭转段；432、第二扭转段；433、平直段。
具体实施方式
下面将结合本申请实施方式中的附图，对本申请实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式仅仅是本申请一部分实施方式，而不是全部的实施方式。基于本申请中的实施方式，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方式，都属于本申 请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接装设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，本文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。本文中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。本文所使用的术语“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。
请参阅图1-7，其中，图1中的换热器的扁管4未发生扭转，图2-5的换热器的扁管4扭转了第二角度b，图6-8的换热器的扁管4扭转了第二角度b，且图6-8的换热器的平直段433弯折了第一角度a。本申请提供一种换热器，该换热器包括翅片3和多个并列设置的扁管4，扁管4包括第一有翅区41、第二有翅区42以及连接第一有翅区41和第二有翅区42的无翅区43，相邻第一有翅区41之间以及相邻第二有翅区42之间均设有翅片3。换热器还包括第一集流管1和第二集流管2，多个第一有翅区41连接第一集流管1，而多个第二有翅区42连接第二集流管2。无翅区43连接第一有翅区41的一端扭转形成第一扭转段431，无翅区43连接第二有翅区42的一端扭转形成第二扭转段432，无翅区43的第一扭转段431和第二扭转段432之间的部分形成平直段433。
第一扭转段431和第二扭转段432朝相同方向扭转第二角度b，以使多个 扁管4上的平直段433朝向相同方向依次部分叠置在另一平直段433上。平直段433能够弯折以使第一有翅区41相对第二有翅区42转动第一角度a。无翅区43的长度为L，第一扭转段431和第二扭转段432的长度相同，均为S，平直段433的长度为M，L＝2S+M，其中，S≥W(π/2+1)，M≥W，其中，W为扁管4的宽度。
如图9所示，第一扭转段431和第二扭转段432的边缘轮廓曲线近似函数y＝arctan(x)。在扁管4发生扭转的过程中，第一扭转段431与平直段433的连接处的曲线斜率小于0.6时，才能满足第一扭转段431与平直段433之间不发生断裂，同样地，第二扭转段432与平直段433的连接处的曲线斜率小于0.6时，才能满足第二扭转段432与平直段433之间不发生断裂。而由函数y＝arctan(x)可知，当x取π/4+1/2时，函数y＝arctan(x)在x＝π/4+1/2处的斜率约等于0.599，满足斜率小于0.6的条件，当x取-(π/4+1/2)时，函数y＝arctan(x)在x＝-(π/4+1/2)处的斜率约等于0.599，满足斜率小于0.6的条件。并且，由函数y＝arctan(x)的图像可知，函数y＝arctan(x)图像上的点在x大于π/4+1/2的范围内的斜率越来越小，且函数y＝arctan(x)图像上的点在x小于-(π/4+1/2)的范围内的斜率越来越小。因此，函数y＝arctan(x)图像上的点在区间[-(π/4+1/2)，π/4+1/2]之外的任意处的斜率均小于0.6，而区间[-(π/4+1/2)，-π/4+1/2]的长度为π/2+1。又因为S与函数y＝arctan(x)定义域的长度呈正相关，且考虑到扁管4的宽度为W，而S与扁管4的宽度W呈正相关的关系。因此我们取，S≥(π/2+1)W时，第一扭转段431与平直段433之间以及第二扭转段432与平直段433之间均不发生断裂。而第一扭转段431的长度S或者第二扭转段432的长度S只需取稍大于W(π/2+1)的值，即可解决无翅区的长度设置过长，导致材料浪费的问题。
在一实施例中，如图2-5所示，第一扭转段431和第二扭转段432朝相同方向扭转第二角度b满足，50°≤b<90°。而当b＝90°时，相邻的平直段433位于同一平面上而无法叠置在一起，因此，第二角度b<90°时，有利于相邻的平直段433叠置在一起。由于换热器的平直段433需要弯折以使第一有翅区41相对第二有翅区42转动第一角度a，而第二角度b越小，平直段433与第一有翅区41以及平直段433与第二有翅区42之间的夹角越小，平直段433在弯折方向的抗弯强度越大，也即，平直段433发生弯折的难度越大，因此，当b≥50°时，有利于对平直段433进行弯折，以使第一有翅区41相对第二有翅区42转动第一角度a。
在一实施例中，如图6-8所示，平直段433弯折第一角度a满足，0°＜a≤180°。如此，换热器能够根据实际需要对平直段433进行弯折，有利于提高换热器的使用灵活性。
进一步地，平直段433的长度为M还满足，M≤10W。如此，由于平直段433属于扁管4的无翅区43，也即，平直段433上不设置翅片3，因而平直段433无法完成换热作用。因此，平直段433的长度为M≤10W，能够避免换热器的无翅区43的长度过长而影响换热器的换热效率。并且，平直段433的长度为M≤10W有利于节约扁管4的材料，降低换热器的生产成本。
进一步地，扁管4的厚度h满足，W/20≤h≤W/5。扁管4的厚度h≥W/20，有利于扁管4具有较好的结构强度，防止扁管4太薄造成扁管4在弯折和扭转的过程中发生断裂。扁管4的厚度h≤W/5，能够防止扁管4的厚度过大，导致扁管4不易弯折和扭转。
在一实施例中，如图2-8所示，叠置在最外侧的平直段433的扭转角度为b1，叠置在最内侧的平直段433的扭转角度为b2，叠置在最外侧与最内侧之 间的平直段433的扭转角度为b3，满足b3＝b，且b1＜b3，b2＜b3。第一扭转段431和第二扭转段432朝相同方向扭转第二角度b之后，相邻的平直段433朝向同一方向叠置在一起，并且，平直段433发生弯折的中心处与水平面成一倾斜角c，倾斜角c与扭转角度b为互余的关系，也即，c+b＝90°。因此，扭转角度b越大，倾斜角c越小。其中，叠置在最外侧的平直段433的中心处与水平面所成倾斜角为c1，叠置在最内侧的平直段433的中心处与水平面所成倾斜角为c2，叠置在最外侧与最内侧之间的平直段433的中心处与水平面所成倾斜角为c3。从图中可以看出，叠置在最外侧的平直段433只有朝向内侧的方向受到相邻平直段433的挤压作用，因此，在一侧挤压力的作用下，叠置在最外侧的平直段433的倾斜角c1较大，而c1+b1＝90°，因此，叠置在最外侧的平直段433的扭转角度为b1较小。同样地，叠置在最内侧的平直段433只有朝向外侧的方向受到相邻平直段433的挤压作用，因此，在一侧挤压力的作用下，叠置在最内侧的平直段433的倾斜角c2也较大，而c2+b2＝90°，因此，叠置在最外侧的平直段433的扭转角度为b2较小。叠置在最外侧与最内侧之间的平直段433两侧均受到相邻的平直段433的挤压力，因此，叠置在最外侧与最内侧之间的平直段433的倾斜角c3满足，c3<c2，c3<c1，也即，叠置在最外侧与最内侧之间的平直段433的扭转角度b3满足，b1<b3，b2<b3。综上可知，如此设置，有利于所有相邻的平直段433叠置在一起。
可选地，扁管4为不锈钢件。不锈钢材质的扁管4易于加工成型，且不锈钢的延展性较好，易于扁管4的弯折和扭转。在其他实施例中，扁管4还可以是铝合金件，铝合金的导热性更好，能够提高换热器的换热效率。
在一实施例中，翅片3与扁管4焊接。焊接可以使翅片3与扁管4的连接更加牢固，且焊接工艺较为成熟，操作简单，能够降低换热器的制造成本。
进一步地，扁管4的宽度W满足，W≥10mm。如此设置，有利于扁管4的加工制造。
本申请还提供一种空调设备，包括以上任意一个实施例所述的换热器。
以上所述实施方式的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施方式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。
本技术领域的普通技术人员应当认识到，以上的实施方式仅是用来说明本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围内，对以上实施方式所作的适当改变和变化都落在本申请要求保护的范围内。

Claims (10)

  1. 一种换热器，其特征在于，包括翅片和多个并列设置的扁管，所述扁管包括第一有翅区、第二有翅区以及连接所述第一有翅区和所述第二有翅区的无翅区，相邻所述第一有翅区之间以及相邻所述第二有翅区之间均设有所述翅片；
    所述无翅区连接所述第一有翅区的一端扭转形成第一扭转段，所述无翅区连接所述第二有翅区的一端扭转形成第二扭转段，所述无翅区的所述第一扭转段和所述第二扭转段之间的部分形成平直段，且所述第一扭转段和所述第二扭转段朝相同方向扭转第二角度b，以使多个所述扁管上的所述平直段朝向相同方向依次部分叠置在另一所述平直段上；
    所述无翅区的长度为L，所述第一扭转段和所述第二扭转段的长度相同，均为S，所述平直段的长度为M，L＝2S+M，其中，S≥W(π/2+1)，M≥W，其中，W为扁管的宽度。
  2. 根据权利要求1所述的换热器，其中，50°≤b<90°。
  3. 根据权利要求1所述的换热器，其中，所述平直段能够沿所述扁管长度方向弯折，以使所述第一有翅区相对所述第二有翅区转动第一角度a，0°<a≤180°。
  4. 根据权利要求1所述的换热器，其中，M≤10W。
  5. 根据权利要求1所述的换热器，其中，扁管的厚度h满足，W/20≤h≤W/5。
  6. 根据权利要求1所述的换热器，其中，叠置在最外侧的所述平直段的扭转角度为b1，叠置在最内侧的所述平直段的扭转角度为b2，叠置在最外侧与最内侧之间的所述平直段的扭转角度为b3，满足b3＝b，且b1<b3，b2<b3。
  7. 根据权利要求1所述的换热器，其中，所述扁管为不锈钢件。
  8. 根据权利要求1所述的换热器，其中，所述翅片与所述扁管焊接。
  9. 根据权利要求1所述的换热器，其中，W≥10mm。
  10. 一种空调设备，其特征在于，包括如权利要求1-9任意一项所述的换热器。
PCT/CN2022/071785 2021-02-07 2022-01-13 换热器及空调设备 Ceased WO2022166554A1 (zh)

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CN215063873U (zh) * 2021-02-07 2021-12-07 浙江盾安人工环境股份有限公司 换热器及空调设备
CN219347480U (zh) * 2023-01-17 2023-07-14 浙江盾安热工科技有限公司 换热器扁管、换热器扁管组件及换热器

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