WO2020125205A1 - 换热器扁管及具有其的换热器 - Google Patents

换热器扁管及具有其的换热器 Download PDF

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Publication number
WO2020125205A1
WO2020125205A1 PCT/CN2019/113740 CN2019113740W WO2020125205A1 WO 2020125205 A1 WO2020125205 A1 WO 2020125205A1 CN 2019113740 W CN2019113740 W CN 2019113740W WO 2020125205 A1 WO2020125205 A1 WO 2020125205A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
plate body
protrusion
flat tube
liquid
Prior art date
Application number
PCT/CN2019/113740
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English (en)
French (fr)
Inventor
魏文建
马文勇
Original Assignee
浙江盾安人工环境股份有限公司
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.)
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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
Priority to US17/312,021 priority Critical patent/US20220026152A1/en
Publication of WO2020125205A1 publication Critical patent/WO2020125205A1/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
    • F28D1/0308—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 the conduits being formed by paired plates touching each other
    • F28D1/0325—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 the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another
    • F28D1/0333—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 the conduits being formed by paired plates touching each other the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another the plates having integrated connecting members
    • 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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages

Definitions

  • the present application relates to the technical field of heat exchanger flat tubes, in particular, to a heat exchanger flat tube and a heat exchanger having the same.
  • the flat tubes of the heat exchanger in the prior art generally do not have separate liquid inlet and liquid outlet parts. Therefore, the two ends of the flat tubes of the heat exchanger in the prior art are respectively provided with Transmit or collect refrigerant into the flat tubes of the heat exchanger.
  • the flat tube of the heat exchanger in the prior art has high cost and large weight, and the refrigerant vapor and liquid are not sufficiently mixed, so it is not convenient to improve the heat exchange efficiency of the heat exchanger.
  • the main purpose of the present application is to provide a heat exchanger flat tube and a heat exchanger with the same to solve the technical problem of higher cost of the heat exchanger in the prior art.
  • a flat tube for a heat exchanger which includes a first plate body and a second plate body, the second plate body is engaged with the first plate body, and the first plate body and The second plate has a liquid inlet part, a throttle part and a fluid channel.
  • the throttle part is located between the liquid inlet part and the fluid channel.
  • the liquid inlet part, the throttle part and the fluid channel are all in communication.
  • the liquid in the liquid inlet part passes through The throttle portion flows into the fluid channel after being throttled.
  • the throttle portion includes a first constriction groove, the first constriction groove is provided on the first plate body, and the flow area of the first constriction groove gradually decreases along the flow direction of the liquid.
  • the throttle portion further includes a second shrinkage groove, the second shrinkage groove is provided on the second plate body, the second shrinkage groove is disposed opposite to the first shrinkage groove, and the flow area of the second shrinkage groove gradually along the flow direction of the liquid Decrease.
  • the liquid inlet portion includes a first protrusion, and the first protrusion is provided on the first plate body, and the first protrusion is provided to protrude in a direction away from the second plate body.
  • the liquid inlet portion further includes a second protrusion
  • the second protrusion is provided on the second plate body
  • the second protrusion is provided opposite to the first protrusion
  • the second protrusion is convex in a direction away from the first plate body Out settings.
  • first protrusion and/or the second protrusion is provided with a liquid inlet, so as to deliver liquid to the liquid inlet through the liquid inlet.
  • a liquid discharge part is further provided between the first plate body and the second plate body, and the liquid discharge part is disposed at an end of the fluid channel away from the throttle part to discharge the liquid in the fluid channel through the liquid discharge part.
  • the liquid discharge part includes a third protrusion, the third protrusion is provided on the first plate body, and the third protrusion is provided to protrude in a direction away from the second plate body.
  • the liquid discharge part further includes a fourth protrusion, the fourth protrusion is provided on the second plate body, the fourth protrusion is provided opposite to the third protrusion, and the fourth protrusion is convex in a direction away from the first plate body Out settings.
  • the third protrusion and/or the fourth protrusion is provided with a liquid outlet to discharge the liquid in the liquid outlet through the liquid outlet.
  • liquid inlet portion and/or the liquid outlet portion are provided with a plug-in portion, and the plug-in portion is used to connect with the to-be-connected piece.
  • the insertion part is a flange, and the flange is provided on the side of the first plate body away from the second plate body; the second plate body is provided with a socket, and the socket is provided corresponding to the flange.
  • a turbulence structure is provided in the fluid channel to disturb the liquid in the fluid channel through the turbulence structure.
  • the turbulence structure includes a convex hull; the first plate body is provided with a convex hull, and the convex hull is protruded toward the second plate body; and/or, the second plate body is provided with a convex hull, the convex hull It is protrudingly provided in the direction close to the first plate body.
  • the convex hull is a round table convex hull.
  • a heat exchanger including a plurality of heat exchanger flat tubes, the plurality of heat exchanger flat tubes are arranged at intervals, and the liquid inlet portions of the plurality of heat exchanger flat tubes are all connected to Forming the liquid inlet cavity, the heat exchanger flat tube is the heat exchanger flat tube provided above.
  • the heat exchanger flat tube is the heat exchanger flat tube provided above, and the insertion part of one heat exchanger flat tube is inserted into the other heat exchanger flat tube to connect the phases through the heat exchanger flat tube insertion part Adjacent two heat exchanger flat tubes.
  • the fluid medium can be directly transferred into the heat exchanger flat tube through the liquid inlet part.
  • the medium is mainly refrigerant.
  • the flat tube of the heat exchanger in this application is provided with a throttle portion, which can increase the pressure of the refrigerant entering the fluid channel, make the gas-liquid two-phase refrigerant more uniformly mixed, and make the refrigerant between the flat tubes The distribution is more uniform, thereby improving the heat exchange efficiency. Therefore, the technical solution provided by the present application can solve the technical problems of high heat exchanger cost and uneven refrigerant distribution or mixing in the prior art.
  • FIG. 1 shows a schematic structural diagram of a flat tube of a heat exchanger according to Embodiment 1 of the present application
  • FIG. 2 shows a plan view of a flat tube of a heat exchanger according to Embodiment 1 of the present application
  • FIG. 3 shows a bottom view of a flat tube of a heat exchanger according to Embodiment 1 of the present application
  • FIG. 4 shows a front view of a flat tube of a heat exchanger according to Embodiment 1 of the present application
  • FIG. 5 shows an A-A view in FIG. 4
  • FIG. 6 shows a schematic structural diagram of a first plate body of a flat tube of a heat exchanger according to Embodiment 1 of the present application;
  • FIG. 7 shows a schematic structural diagram of a second plate body of a flat tube of a heat exchanger according to Embodiment 1 of the present application;
  • FIG. 8 shows a schematic structural diagram of a heat exchanger according to Embodiment 2 of the present application.
  • FIG. 10 shows a partial structural schematic diagram of a heat exchanger according to Embodiment 2 of the present application.
  • FIG. 11 shows an enlarged view of the partial structure in FIG. 10.
  • Embodiment 1 of the present application provides a heat exchanger flat tube 90.
  • the heat exchanger flat tube 90 includes a first plate body 10 and a second plate body 20.
  • the second plate body 20 is engaged with the first plate body 10, and the first plate body 10 and the second plate body 20 have a liquid inlet portion 30, a throttle portion 40, and a fluid passage 50.
  • the throttle portion 40 is located in the liquid inlet portion Between the 30 and the fluid channel 50, the liquid inlet 30, the throttle 40, and the fluid channel 50 are all in communication, and the liquid in the liquid inlet 30 is throttled by the throttle 40 and flows into the fluid channel 50.
  • Both the first plate body 10 and the second plate body 20 in this embodiment can be made by a stamping forming process
  • the first plate body 10 and the second plate body 20 are both thin metal plates
  • the first plate body in this embodiment 10 and the second plate body 20 may be made of aluminum material or composite aluminum material.
  • the first plate body 10 when the first plate body 10 is disposed on the second plate body 20, there is a certain contact surface between the first plate body 10 and the second plate body 20, and the contact surface of the first plate body 10 and The corresponding contact surfaces on the second plate body 20 are welded together to form a heat exchanger flat tube 90.
  • the liquid inlet portion 30 can directly go to the heat exchanger flat tube 90
  • the fluid medium is transported internally.
  • the fluid medium here is mainly refrigerant.
  • the heat exchanger in this application does not need to be provided with a corresponding header, so it can reduce the weight of the heat exchanger, reduce the charge amount of the refrigerator, and reduce the cost of the heat exchanger.
  • the refrigerant entering the liquid inlet portion 30 can be increased by the throttle portion 40 to increase the refrigerant inlet pressure, so that the refrigerant vapor and liquid two-phase mixing is more sufficient, so that the refrigerant can be evenly distributed to each heat exchange
  • the flat tube 90 flows into the fluid channel 50 through the corresponding throttle portion 40, which improves the heat exchange efficiency. Therefore, the technical solution provided by the present application can solve the technical problem of higher cost of the heat exchanger in the prior art.
  • the throttle portion 40 in this embodiment includes a first constriction groove 41 that is provided on the first plate body 10, and the flow area of the first constriction groove 41 gradually decreases in the liquid flow direction.
  • the refrigerant flowing into the liquid inlet portion 30 will enter the first shrinkage groove 41. Since the flow area of the first shrinkage groove 41 gradually decreases, the pressure of the refrigerant flowing into the first shrinkage groove 41 becomes larger Accordingly, the pressure of the refrigerant flowing into the fluid passage 50 becomes larger, so that the refrigerant vapor and liquid can be mixed more fully.
  • the throttle portion 40 in this embodiment further includes a second contraction groove 42.
  • the second shrinkage groove 42 is provided on the second plate body 20.
  • the second shrinkage groove 42 is provided opposite to the first shrinkage groove 41, and the flow area of the second shrinkage groove 42 gradually decreases along the flow direction of the liquid. In this way, the refrigerant flows in from the liquid inlet portion 30, and the pressure of the refrigerant is increased under the joint action of the first shrinkage groove 41 and the second shrinkage groove 42, so as to further improve the uniformity of the mixing, thereby improving the heat exchange efficiency.
  • the liquid inlet portion 30 includes a first protrusion 31 that is disposed on the first plate body 10, and the first protrusion 31 is protruded and provided in a direction away from the second plate body 20.
  • the first protrusion 31 can contain a certain amount of refrigerant, so as to facilitate the delivery of refrigerant into the fluid passage 50 through the first protrusion 31.
  • the liquid inlet 30 in this embodiment further includes a second protrusion 32.
  • the second protrusion 32 is disposed on the second plate body 20, the second protrusion 32 is disposed opposite to the first protrusion 31, and the second protrusion 32 is protrudingly provided in a direction away from the first plate body 10.
  • the first protrusion 31 and the second protrusion 32 together form the liquid inlet portion 30 to better deliver refrigerant to the fluid passage 50.
  • the first plate body 10 is arranged on the second plate body 20, the first protrusion 31 is arranged opposite to the second protrusion 32, and the first protrusion
  • the contact surface at 31 and the contact surface at the second protrusion 32 are welded together so as to form a sealed liquid inlet chamber to deliver refrigerant to the fluid passage 50 through the liquid inlet chamber.
  • the liquid inlet 33 may be provided on the first protrusion 31; or the liquid inlet 33 may be provided on the second protrusion 32; or both the first protrusion 31 and the second protrusion 32 may be provided at the same time.
  • a liquid inlet 33 is provided on both the first protrusion 31 and the second protrusion 32.
  • a liquid outlet 60 is further provided between the first plate body 10 and the second plate body 20.
  • the liquid discharge part 60 is provided at the end of the fluid channel 50 away from the throttle part 40 to discharge the liquid in the fluid channel 50 through the liquid discharge part 60, where the liquid is mainly a refrigerant.
  • the refrigerant in the fluid passage 50 can be discharged without providing a header connected to the flat tubes 90 of each heat exchanger, which can further reduce the weight of the heat exchanger and also reduce the refrigerant charge Inject volume to further reduce the cost of the heat exchanger and improve the competitiveness of the product.
  • the liquid discharge portion 60 in this embodiment includes a third protrusion 61 that is provided on the first plate body 10, and the third protrusion 61 protrudes in a direction away from the second plate body 20.
  • the liquid discharge part 60 in this embodiment further includes a fourth protrusion 62, and the fourth protrusion 62 is provided on the second plate body 20,
  • the fourth protrusion 62 is disposed opposite to the third protrusion 61, and the fourth protrusion 62 protrudes in a direction away from the first plate body 10.
  • the third protrusion 61 and the fourth protrusion 62 jointly form the liquid discharge portion 60 in order to better discharge the refrigerant in the fluid passage 50.
  • the first plate body 10 is arranged on the second plate body 20, the third protrusion 61 is arranged opposite to the fourth protrusion 62, and the third protrusion
  • the contact surface at 61 and the contact surface at the fourth protrusion 62 are welded together so as to form a sealed liquid discharge chamber to discharge refrigerant through the liquid discharge chamber.
  • a liquid outlet 63 may be provided on the third protrusion 61; or a liquid outlet 63 may be provided on the fourth protrusion 62; or both the third protrusion 61 and the fourth protrusion 62 may be provided at the same time. ⁇ 63 ⁇ There is a liquid outlet 63. In this embodiment, in order to facilitate installation and connection, a liquid outlet 63 is provided on both the third protrusion 61 and the fourth protrusion 62 to discharge the liquid in the liquid outlet 60 through the liquid outlet 63.
  • the liquid inlet portion 30 may be provided with a plug portion 70; or the liquid outlet portion 60 may be provided with a plug portion 70; or both the liquid inlet portion 30 and the plug portion 70 may be provided with a plug portion 70.
  • the plug-in portion 70 is used to connect with the to-be-connected piece.
  • the to-be-connected piece here is another heat exchanger flat tube 90.
  • heat exchanger flat tubes 90 are provided on the liquid inlet portion 30 and the insertion portion 70, and the insertion portion 70 is used for insertion to another In the heat exchanger flat tube 90, a plurality of heat exchanger flat tubes 90 are stacked and welded through the insertion portion 70.
  • the insertion portion 70 in this embodiment is a flange, and the flange is provided on the side of the first plate body 10 away from the second plate body 20.
  • a socket is provided on the second board body 20, and the socket is corresponding to the flange.
  • the fluid channel 50 in this embodiment is provided with a turbulence structure to disturb the liquid in the fluid channel 50 through the turbulence structure and improve the heat exchange effect of the refrigerant through the turbulence.
  • the spoiler structure in this embodiment includes a convex hull 80.
  • a convex hull 80 may be provided on the first plate body 10, and the convex hull 80 is protruded and provided in a direction close to the second plate body 20; or, a convex hull 80 is provided on the second plate body 20, and the convex hull 80 is close to
  • the first plate body 10 is protrudingly provided; or, the first plate body 10 is provided with a convex hull 80, and the convex hull 80 on the first plate body 10 is protrudingly provided toward the second plate body 20, while A convex hull 80 is provided on the second plate body 20, and the convex hull 80 on the second plate body 20 protrudes in a direction close to the first plate body 10.
  • a convex hull 80 is provided on the first plate body 10, and the convex hull 80 on the first plate body 10 protrudes toward the second plate body 20, and at the same time
  • a convex hull 80 is provided on the second plate 20, and the convex hull 80 on the second plate 20 protrudes toward the first plate 10 so as to pass through the convex hull 80 on the first plate 10 and the second plate
  • the convex hull 80 on the body 20 disturbs the refrigerant in the fluid passage 50.
  • the convex hull 80 on the first plate body 10 is in contact with the convex hull 80 on the second plate body 20, and Welding the contact between the first plate body 10 and the second plate body 20, so that the refrigerant in the fluid passage 50 surrounds the side wall of the convex hull 80 of the first plate body 10 and the convexity of the second plate body 20
  • the side wall of the bag 80 flows.
  • the convex hull 80 in this embodiment has a circular truncated cone structure.
  • the refrigerant flows in the fluid channel 50, when the refrigerant encounters the convex hull 80, it will flow around the side wall of the round table structure to disturb the refrigerant, thereby improving the heat exchange effect.
  • the convex hull 80 may also have a truncated cone structure or other shapes having equivalent functions.
  • Embodiment 2 of the present application provides a heat exchanger including a plurality of heat exchanger flat tubes 90, a plurality of heat exchanger flat tubes 90 are arranged at intervals, and a plurality of The liquid inlets of the flat tubes 90 of the heat exchanger are all connected to form a liquid inlet cavity.
  • the flat tubes 90 of the heat exchanger are the flat tubes 90 of the heat exchanger in the first embodiment.
  • the direction of the arrow in FIG. 11 is the flow direction of the refrigerant.
  • the heat exchanger flat tube 90 includes a plug portion 70, and the plug portion 70 of one heat exchanger flat tube 90 is inserted into another heat exchanger flat tube 90 to pass through the plug portion of the heat exchanger flat tube 90 70 connects two adjacent heat exchanger flat tubes 90.
  • the heat exchanger in this embodiment does not need to be provided with an additional header, and only needs to stack and connect the liquid inlet portion 30 and the liquid outlet portion 60 of the plurality of heat exchanger flat tubes 90 separately, Reduced costs and simplified the installation process.
  • the heat exchanger in this embodiment further includes a takeover 100. After the multiple heat exchanger flat tubes 90 are connected and installed, it is only necessary to respectively connect one inlet 100 to the liquid inlet portion 30 and the liquid outlet portion 60 at the end heat exchanger flat tubes 90 respectively.
  • the refrigerant enters the liquid inlet 30 and discharges the refrigerant in the liquid outlet 60.
  • the heat exchanger in this embodiment works, the refrigerant enters the liquid inlet portion 30 of each heat exchanger flat tube 90 through a connecting pipe 100, and enters the corresponding fluid passage 50 through each liquid inlet portion 30, and then from The corresponding liquid outlet 60 flows into the other connection 100.
  • the heat exchanger in this embodiment further includes an edge plate 110 and a fin 120. The edge plate 110 is installed near the end of the heat exchanger flat tube 90, and the fin 120 is located between two adjacent heat exchanger flat tubes 90 .
  • the above-mentioned embodiments of the present application achieve the following technical effects: by providing a liquid inlet portion and a liquid outlet portion at the end of the heat exchanger, the refrigerant can be easily passed in or out, without requiring
  • the setting of the corresponding collecting tube saves the material of the heat exchanger flat tube, reduces the cost of the heat exchanger flat tube, and reduces the volume of the heat exchanger flat tube;
  • the heat exchanger flat tube is provided with a throttling section, which improves
  • the inlet pressure of the refrigerant makes the refrigerant vapor and liquid more fully mixed, which facilitates the liquid separation of the heat exchanger flat tube and improves the heat exchange effect.
  • the installation method of the heat exchanger in this application is simple and easy to assemble.

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

Abstract

本申请提供了一种换热器扁管及具有其的换热器，该换热器扁管包括第一板体和第二板体，第二板体与第一板体扣合，第一板体和第二板体之间具有进液部、节流部和流体通道，节流部位于进液部和流体通道之间，进液部、节流部和流体通道均连通，进液部内的液体经节流部节流后流入至流体通道内。通过本申请提供的技术方案，能够解决现有技术中的换热器成本较高、制冷剂分配或混合不均匀的技术问题。

Description

换热器扁管及具有其的换热器 技术领域
本申请涉及换热器扁管技术领域，具体而言，涉及一种换热器扁管及具有其的换热器。
背景技术
目前，现有技术中的换热器扁管一般不具有单独的进液部和出液部，因此，现有技术中的换热器扁管的两端分别设置有两个集流管，以分别向换热器扁管内输送或收集制冷剂。现有技术中的这种换热器扁管的成本高，重量大，且制冷剂汽、液两相的混合不够充分，因而也不便于提高换热器的换热效率。
发明内容
本申请的主要目的在于提供一种换热器扁管及具有其的换热器，以解决现有技术中的换热器成本较高的技术问题。
为了实现上述目的，根据本申请的一个方面，提供了一种换热器扁管，包括第一板体和第二板体，第二板体与第一板体扣合，第一板体和第二板体之间具有进液部、节流部和流体通道，节流部位于进液部和流体通道之间，进液部、节流部和流体通道均连通，进液部内的液体经节流部节流后流入至流体通道内。
进一步地，节流部包括第一收缩槽，第一收缩槽设置在第一板体上，沿液体的流动方向第一收缩槽的流通面积逐渐减小。
进一步地，节流部还包括第二收缩槽，第二收缩槽设置在第二板体上，第二收缩槽与第一收缩槽相对设置，沿液体的流动方向第二收缩槽的流通面积逐渐减小。
进一步地，进液部包括第一凸起，第一凸起设置在第一板体上，第一凸起沿远离第二板体的方向凸出设置。
进一步地，进液部还包括第二凸起，第二凸起设置在第二板体上，第二凸起与第一凸起相对设置，第二凸起沿远离第一板体的方向凸出设置。
进一步地，第一凸起和/或第二凸起上设置有进液口，以通过进液口向进液部输送液体。
进一步地，第一板体和第二板体之间还具有出液部，出液部设置在流体通道的远离节流部的一端，以通过出液部排出流体通道内的液体。
进一步地，出液部包括第三凸起，第三凸起设置在第一板体上，第三凸起沿远离第二板体的方向凸出设置。
进一步地，出液部还包括第四凸起，第四凸起设置在第二板体上，第四凸起与第三凸起相对设置，第四凸起沿远离第一板体的方向凸出设置。
进一步地，第三凸起和/或第四凸起上设置有出液口，以通过出液口将出液部内的液体排出。
进一步地，进液部和/或出液部上设置有插接部，插接部用于与待连接件连接。
进一步地，插接部为翻边，翻边设置在第一板体的远离第二板体的一侧；第二板体上设置有插口，插口与翻边对应设置。
进一步地，流体通道内设置有扰流结构，以通过扰流结构对流体通道内的液体进行扰流。
进一步地，扰流结构包括凸包；第一板体上设置有凸包，凸包向靠近第二板体的方向凸出设置；和/或，第二板体上设置有凸包，凸包向靠近第一板体的方向凸出设置。
进一步地，凸包为圆台凸包。
根据本申请的另一方面，提供了一种换热器，包括多个换热器扁管，多个换热器扁管间隔设置，多个换热器扁管的进液部均连通设置以形成进液腔，换热器扁管为上述提供的换热器扁管。
进一步地，换热器扁管为上述提供的换热器扁管，一个换热器扁管的插接部插入另一个换热器扁管内，以通过换热器扁管的插接部连接相邻两个换热器扁管。
应用本申请的技术方案，由于第一板体和第二板体之间具有进液部、节流部和流体通道，可以通过进液部直接向换热器扁管内输送流体介质，这里的流体介质主要为制冷剂，相比于现有技术中需要设置集流管并通过集流管向流体通道内输送制冷剂或收集流体通道内的制冷剂而言，本申请中的换热器不需要设置相应的集流管，因而能够降低换热器的重量、减少制冷器的充注量，降低了换热器的成本。另外，本申请中的换热器扁管设置有节流部，可提高进入流体通道内的制冷剂的压力，使气液两相制冷剂混合更均匀，以及使得制冷剂在各扁管间的分配更均匀，从而提高换热效率。因此，采用本申请提供的技术方案，能够解决现有技术中的换热器成本较高、制冷剂分配或混合不均匀的技术问题。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请的实施例一提供的换热器扁管的结构示意图；
图2示出了根据本申请的实施例一提供的换热器扁管的俯视图；
图3示出了根据本申请的实施例一提供的换热器扁管的仰视图；
图4示出了根据本申请的实施例一提供的换热器扁管的主视图；
图5示出了图4中的A-A向视图；
图6示出了根据本申请的实施例一提供的换热器扁管的第一板体的结构示意图；
图7示出了根据本申请的实施例一提供的换热器扁管的第二板体的结构示意图；
图8示出了根据本申请的实施例二提供的换热器的结构示意图；
图9示出了根据本申请的实施例二提供的换热器的另一角度的结构示意图；
图10示出了根据本申请的实施例二提供的换热器的局部结构示意图；
图11示出了图10中的局部结构放大图。
其中，上述附图包括以下附图标记：
10、第一板体；20、第二板体；30、进液部；31、第一凸起；32、第二凸起；33、进液口；40、节流部；41、第一收缩槽；42、第二收缩槽；50、流体通道；60、出液部；61、第三凸起；62、第四凸起；63、出液口；70、插接部；80、凸包；90、换热器扁管；100、接管；110、边板；120、翅片。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
如图1至图7所示，本申请实施例一提供了一种换热器扁管90，该换热器扁管90包括第一板体10和第二板体20。第二板体20与第一板体10扣合，第一板体10和第二板体20之间具有进液部30、节流部40和流体通道50，节流部40位于进液部30和流体通道50之间，进液部30、节流部40和流体通道50均连通，进液部30内的液体经节流部40节流后流入至流体通道50内。本实施例中的第一板体10和第二板体20均可以采用冲压成型工艺制成，第一板体10和第二板体20均为金属薄板，本实施例中的第一板体10和第二板体20可以由铝材料或复合铝材料制成。在本实施例中，第一板体10设置在第二板体20上时，第一板体10与第二板体20之间具有一定的接触面，将第一板体10的接触面与第二板体20上相应的接触面焊接起来，以形成换热器扁管90。
应用本申请的技术方案，由于第一板体10和第二板体20之间具有进液部30、节流部40和流体通道50，可以通过进液部30直接向换热器扁管90内输送流体介质，这里的流体介质主要为制冷剂，相比于现有技术中需要设置集流管并通过集流管向流体通道50内输送制冷剂或收集流体通道50内的制冷剂而言，本申请中的换热器不需要设置相应的集流管，因而能够降低换热器的重量、减少制冷器的充注量，降低了换热器的成本。同时，进入进液部30内的制冷剂经节流部40节流后能够提高制冷剂的入口压力，使制冷剂汽、液两相混合更充分，以 便于制冷剂能够均匀分配至各个换热器扁管90并经相应的节流部40流入至流体通道50内，提高了换热效率。因此，采用本申请提供的技术方案，能够解决现有技术中的换热器成本较高的技术问题。
具体的，本实施例中的节流部40包括第一收缩槽41，第一收缩槽41设置在第一板体10上，沿液体的流动方向第一收缩槽41的流通面积逐渐减小。采用这样的设置，制冷剂从进液部30流入后将进入第一收缩槽41，由于第一收缩槽41的流通面积逐渐减小，流入第一收缩槽41内的制冷剂的压力会变大，相应会使得流入流体通道50内的制冷剂的压力变大，从而能够使得制冷剂汽、液两相混合更加充分。
为了进一步提高节流效果，本实施例中的节流部40还包括第二收缩槽42。第二收缩槽42设置在第二板体20上，第二收缩槽42与第一收缩槽41相对设置，沿液体的流动方向第二收缩槽42的流通面积逐渐减小。这样，制冷剂从进液部30流入，并在第一收缩槽41和第二收缩槽42的共同作用下提高制冷剂的压力，以进一步提高混合的均匀性，进而提高换热效率。
在本实施例中，进液部30包括第一凸起31，第一凸起31设置在第一板体10上，第一凸起31沿远离第二板体20的方向凸出设置。采用这样的设置，第一凸起31能够容纳一定的制冷剂，以便于通过第一凸起31向流体通道50内输送制冷剂。
为了更好地通过进液部30向流体通道50内输送制冷剂，本实施例中的进液部30还包括第二凸起32。第二凸起32设置在第二板体20上，第二凸起32与第一凸起31相对设置，第二凸起32沿远离第一板体10的方向凸出设置。采用这样的设置，第一凸起31和第二凸起32共同形成进液部30，以更好地向流体通道50输送制冷剂。在安装本实施例中的换热器扁管90时，将第一板体10设置在第二板体20上，第一凸起31与第二凸起32相对设置，并将第一凸起31处的接触面和第二凸起32处的接触面焊接起来，以便于形成密封的进液腔，以通过进液腔向流体通道50输送制冷剂。
具体的，可以在第一凸起31上设置有进液口33；或者在第二凸起32上设置有进液口33；或者同时在第一凸起31和第二凸起32上均设置有进液口33。在本实施例中，为了方便地通过进液口33向进液部30内输送流体介质，在第一凸起31和第二凸起32上均设置有进液口33。
为了便于将流体通道50内的液体排出，本实施例中在第一板体10和第二板体20之间还具有出液部60。出液部60设置在流体通道50的远离节流部40的一端，以通过出液部60排出流体通道50内的液体，这里的液体主要为制冷剂。采用这样的设置，不需要设置与各个换热器扁管90均连接的集流管便可排出流体通道50内的制冷剂，能够进一步减轻换热器的重量，同时也减少了制冷剂的充注量，以进一步降低换热器的成本，提高产品的竞争力。
具体的，本实施例中的出液部60包括第三凸起61，第三凸起61设置在第一板体10上，第三凸起61沿远离第二板体20的方向凸起。在第三凸起61与第二板体20之间具有一定的容纳空间，该容纳空间可以用于容纳将要排出的制冷剂，以便于通过第三凸起61将制冷剂排出。
为了更好地通过出液部60将流体通道50内的制冷剂排出，本实施例中的出液部60还包括第四凸起62，第四凸起62设置在第二板体20上，第四凸起62与第三凸起61相对设置，第四凸起62沿远离第一板体10的方向凸起。第三凸起61和第四凸起62共同形成出液部60，以便于更好地将流体通道50内的制冷剂排出。在安装本实施例中的换热器扁管90时，将第一板体10设置在第二板体20上，第三凸起61与第四凸起62相对设置，并将第三凸起61处的接触面和第四凸起62处的接触面焊接起来，以便于形成密封的出液腔，以通过出液腔向排出制冷剂。
具体的，可以在第三凸起61上设置有出液口63；或者在第四凸起62上设置有出液口63；或者同时在第三凸起61和第四凸起62上均设置有出液口63。在本实施例中，为了便于安装和连接，在第三凸起61和第四凸起62上均设置有出液口63，以通过出液口63将出液部60内的液体排出。
具体的，可以在进液部30上设置有插接部70；或者在出液部60上设置有插接部70；或者同时在进液部30和插接部70上均设置有插接部70。插接部70用于与待连接件连接，具体的，这里的待连接件为其他的换热器扁管90。为了便于将多个换热器扁管90连接起来，本实施例中在进液部30和插接部70上均设置有换热器扁管90，插接部70用于插入至另一换热器扁管90中，以通过插接部70使多个换热器扁管90堆叠起来，并进行焊接。采用本实施例中的换热器扁管90，省去了现有技术中的集流管，便于安装，降低了成本。
具体的，本实施例中的插接部70为翻边，翻边设置在第一板体10的远离第二板体20的一侧。相应的，在第二板体20上设置有插口，插口与翻边对应设置。在安装换热器时，将一个换热器扁管90上的翻边插入至另一个换热器扁管90上的插口内，并将相应的接触端面进行钎焊，以实现密封。本实施例中的进液口33和出液口63可以用来形成插口，一方面，能够便于进液或出液，另一方面，还能够便于连接，提高装置整体的稳定性。
为了进一步提高换热效果，本实施例中的流体通道50内设置有扰流结构，以通过扰流结构对流体通道50内的液体进行扰流，并通过扰流提高制冷剂的换热效果。
具体的，本实施例中的扰流结构包括凸包80。可以在第一板体10上设置有凸包80，凸包80向靠近第二板体20的方向凸出设置；或者，在第二板体20上设置有凸包80，凸包80向靠近第一板体10的方向凸出设置；或者，在第一板体10上设置有凸包80，第一板体10上的凸包80向靠近第二板体20的方向凸出设置，同时在第二板体20上设置有凸包80，第二板体20上的凸包80向靠近第一板体10的方向凸出设置。为了进一步提高换热效果，本实施例中在第一板体10上设置有凸包80，第一板体10上的凸包80向靠近第二板体20的方向凸出设置，同时在第二板体20上设置有凸包80，第二板体20上的凸包80向靠近第一板体10的方向凸出设置，以通过第一板体10上的凸包80和第二板体20上的凸包80对流体通道50内的制冷剂进行扰流。具体的，为了进一步提高扰流效果，第一板体10安装在第二板体20上时，第一板体10上的凸包80与第二板体20上的凸包80相抵接，并将第一板体10与第二板体20的抵接处焊接起来，以使流体通道50内的制冷剂绕着第一板体10的凸包80的侧壁和第二板体20的凸包80的侧壁流动。
具体的，本实施例中的凸包80为圆台结构。制冷剂在流体通道50内流动时，当制冷剂碰到凸包80后将绕着圆台结构的侧壁流动，以对制冷剂进行扰流，从而提高了换热效果。该凸包80还可以为圆锥台结构或其他具有同等功能的形状。
如图8至图11所示，本申请实施例二提供了一种换热器，该换热器包括多个换热器扁管90，多个换热器扁管90间隔设置，多个换热器扁管90的进液部均连通设置以形成进液腔，换热器扁管90为实施例一中的换热器扁管90。图11中的箭头方向为制冷剂的流向。
具体的，换热器扁管90包括插接部70，一个换热器扁管90的插接部70插入另一个换热器扁管90内，以通过换热器扁管90的插接部70连接相邻两个换热器扁管90。采用这样的设置，本实施例中的换热器不需要设置额外的集流管，只需要将多个换热器扁管90的进液部30和出液部60分别堆叠连接起来即可，降低了成本，简化了安装过程。
本实施例中的换热器还包括接管100。在将多个换热器扁管90连接安装好后，只需要分别在端部的换热器扁管90处的进液部30和出液部60分别连接一个接管100，通过接管100分别向进液部30内通入制冷剂、将出液部60内的制冷剂排出。本实施例中的换热器在工作时，制冷剂通过一个接管100进入各个换热器扁管90的进液部30，并通过各个进液部30进入相应的流体通道50内，并随后从相应的出液部60流入至另一接管100中。本实施例中的换热器还包括边板110和翅片120，边板110安装在端部的换热器扁管90附近，翅片120位于相邻两个换热器扁管90之间。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：通过在换热器的端部设置进液部和出液部能够方便地通入或排出制冷剂，不需要设置相应的集流管，节约了换热器扁管的材料，降低了换热器扁管的成本，减小了换热器扁管的容积；换热器扁管设置节流部，提高了制冷剂的入口压力，使制冷剂汽、液两相混合更充分，便于换热器扁管的分液，提高了换热效果。同时，本申请中的换热器的安装方式简单，便于装配。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (17)

  1. 一种换热器扁管，其特征在于，包括第一板体(10)和第二板体(20)，所述第二板体(20)与所述第一板体(10)扣合，所述第一板体(10)和所述第二板体(20)之间具有进液部(30)、节流部(40)和流体通道(50)，所述节流部(40)位于所述进液部(30)和所述流体通道(50)之间，所述进液部(30)、所述节流部(40)和所述流体通道(50)均连通，所述进液部(30)内的液体经所述节流部(40)节流后流入至所述流体通道(50)内。
  2. 根据权利要求1所述的换热器扁管，其特征在于，所述节流部(40)包括第一收缩槽(41)，所述第一收缩槽(41)设置在所述第一板体(10)上，沿所述液体的流动方向所述第一收缩槽(41)的流通面积逐渐减小。
  3. 根据权利要求2所述的换热器扁管，其特征在于，所述节流部(40)还包括第二收缩槽(42)，所述第二收缩槽(42)设置在所述第二板体(20)上，所述第二收缩槽(42)与所述第一收缩槽(41)相对设置，沿所述液体的流动方向所述第二收缩槽(42)的流通面积逐渐减小。
  4. 根据权利要求1所述的换热器扁管，其特征在于，所述进液部(30)包括第一凸起(31)，所述第一凸起(31)设置在所述第一板体(10)上，所述第一凸起(31)沿远离所述第二板体(20)的方向凸出设置。
  5. 根据权利要求4所述的换热器扁管，其特征在于，所述进液部(30)还包括第二凸起(32)，所述第二凸起(32)设置在所述第二板体(20)上，所述第二凸起(32)与所述第一凸起(31)相对设置，所述第二凸起(32)沿远离所述第一板体(10)的方向凸出设置。
  6. 根据权利要求5所述的换热器扁管，其特征在于，所述第一凸起(31)和/或所述第二凸起(32)上设置有进液口(33)，以通过所述进液口(33)向所述进液部(30)输送液体。
  7. 根据权利要求1所述的换热器扁管，其特征在于，所述第一板体(10)和所述第二板体(20)之间还具有出液部(60)，所述出液部(60)设置在所述流体通道(50)的远离所述节流部(40)的一端，以通过所述出液部(60)排出所述流体通道(50)内的液体。
  8. 根据权利要求7所述的换热器扁管，其特征在于，所述出液部(60)包括第三凸起(61)，所述第三凸起(61)设置在所述第一板体(10)上，所述第三凸起(61)沿远离所述第二板体(20)的方向凸出设置。
  9. 根据权利要求8所述的换热器扁管，其特征在于，所述出液部(60)还包括第四凸起(62)，所述第四凸起(62)设置在所述第二板体(20)上，所述第四凸起(62)与所述第三凸起(61)相对设置，所述第四凸起(62)沿远离所述第一板体(10)的方向凸出设置。
  10. 根据权利要求9所述的换热器扁管，其特征在于，所述第三凸起(61)和/或所述第四凸起(62)上设置有出液口(63)，以通过所述出液口(63)将所述出液部(60)内的液体排出。
  11. 根据权利要求7所述的换热器扁管，其特征在于，所述进液部(30)和/或所述出液部(60)上设置有插接部(70)，所述插接部(70)用于与待连接件连接。
  12. 根据权利要求11所述的换热器扁管，其特征在于，所述插接部(70)为翻边，所述翻边设置在所述第一板体(10)的远离所述第二板体(20)的一侧；所述第二板体上设置有插口，所述插口与所述翻边对应设置。
  13. 根据权利要求1所述的换热器扁管，其特征在于，所述流体通道(50)内设置有扰流结构，以通过所述扰流结构对所述流体通道(50)内的液体进行扰流。
  14. 根据权利要求13所述的换热器扁管，其特征在于，所述扰流结构包括凸包(80)；
    所述第一板体(10)上设置有所述凸包(80)，所述凸包(80)向靠近所述第二板体(20)的方向凸出设置；和/或，
    所述第二板体(20)上设置有所述凸包(80)，所述凸包(80)向靠近所述第一板体(10)的方向凸出设置。
  15. 根据权利要求14所述的换热器扁管，其特征在于，所述凸包(80)为圆台结构。
  16. 一种换热器，其特征在于，包括多个换热器扁管(90)，多个所述换热器扁管(90)间隔设置，多个所述换热器扁管(90)的进液部(30)均连通设置以形成进液腔，所述换热器扁管(90)为权利要求1至15中任一项所述的换热器扁管(90)。
  17. 根据权利要求16所述的换热器，其特征在于，所述换热器扁管(90)为权利要求11中的换热器扁管(90)，一个所述换热器扁管(90)的插接部插入另一个所述换热器扁管(90)内，以通过所述换热器扁管(90)的插接部连接相邻两个所述换热器扁管(90)。
PCT/CN2019/113740 2018-12-21 2019-10-28 换热器扁管及具有其的换热器 WO2020125205A1 (zh)

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