CN106461349A - Flat tube for heat exchanger - Google Patents

Flat tube for heat exchanger Download PDF

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Publication number
CN106461349A
CN106461349A CN201580030152.9A CN201580030152A CN106461349A CN 106461349 A CN106461349 A CN 106461349A CN 201580030152 A CN201580030152 A CN 201580030152A CN 106461349 A CN106461349 A CN 106461349A
Authority
CN
China
Prior art keywords
pipe
fin
section
opening
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201580030152.9A
Other languages
Chinese (zh)
Inventor
E.艾蒂安
P.波伊塞勒
S.布里
J-P.伯托姆
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of CN106461349A publication Critical patent/CN106461349A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular 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
    • 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
    • F28F1/24—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 transversely
    • F28F1/32—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 transversely the means having portions engaging further tubular elements
    • F28F1/325—Fins with openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • 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
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • 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
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements

Landscapes

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

Abstract

The invention discloses a flat tube for heat exchanger. The tube (10) for a motor vehicle heat exchanger has a cross section comprising two opposite longitudinal flanks (12) each one provided with at least two concave portions (14).

Description

Flat tube for heat exchanger
Technical field
The present invention relates to the technical field of motor vehicles heat exchanger, and more particularly relate to this heat exchanger Pipe.
Background technology
Exchanger tube of interest is so-called " flat " pipe, for being passed through opening in multiple fins of heat exchanger Mouthful.Manage in a heat exchanger by expansion-molded so that they are compressed against on the edge of the opening in fin.
The pipe of described type is known from document FR 2 722 563, and described pipe has oval cross section, its base The cross section of the opening in fin is equal on basis.
This pipe includes facing with each other two longitudinal wall, and this longitudinal wall is to bend and have sunk part (to change sentence Talk about, there is the part of the internal protrusion towards pipe), though pipe have in longitudinal wall each other hithermost region limited outer Portion's width.Therefore, this especially flat pipe is suitable in undersized heat exchanger.
However, once this pipe shapes in exchanger, then between the opening in the longitudinal wall and fin of pipe There is cohesion problem.This pipe stands the elastic recoil of their wall after shaping in the opening of fin.This bullet of the wall of pipe Elastic recoil produces gap between the opening in wall and fin, and this leads to manage the reduction of the thermal conductivity and fin between.Therefore, this The defect of a little types has negative effect to the overall thermal efficiency of exchanger.
The specific purposes of the present invention are to overcome the problems referred to above by proposing a kind of heat exchanger tube, and its thermal efficiency is changed Kind.
Content of the invention
For this reason, the purpose of the present invention is a kind of pipe for motor vehicles heat exchanger, it has relative including two The cross section of longitudinal wall, each wall is provided with least two sunk parts.
Therefore, it is proposed to a kind of especially flat pipe, it has the size being adapted to mount in compact heat exchanger, with When eliminate in the wall and fin of pipe opening between cohesion problem.It is surprising that the present inventors have observed that, this Kind specific tube shape allow its pass through expansion-molded after avoid the elastic recoil of tube wall.In fact, after tube formation, The side of pipe is kept pressed against the edge of opening, and the problem preventing from gap between the opening in fin and tube wall.Cause This, optimize the heat transfer between fin and pipe, which thereby enhances the thermal efficiency of heat exchanger.
Additionally, pipe defined above can include one or more following characteristics either individually or in combination.
- according to the present invention, two sunk parts are separated by bossing.This shape should be managed in the broadest sense Solution, in other words, bossing is not required there is specific shape.
- bossing is dimensioned such that so that it is cutting of straight pipe that the interior girth in section has at least than its mesospore The value in face big 2%.Therefore, bossing allows the interior girth (also referred to as wetted perimeter) of pipe with respect to not having any convexity Pipe increases by 2% value, and its result is the increase in the heat exchange performance of pipe.
- for example, the wall of pipe is connected to each other by substantially circular or even oval section.
- it is contemplated that according to the cross section of pipe, length LTubeRepresent that substantially circular shape is had on the outside of pipe Ultimate range between section, width lTubeExpression minimum range between two walls of pipe on the outside of pipe, and pipe Flat ratio TfLimited by relationship below：
Wherein flattening coefficient TfStrictly less than 0.20 to ± 0.01.
Another object of the present invention is a kind of fin, and it includes at least one substantially elliptical opening, this opening Including the edge being provided with two relative longitudinal walls, each is provided with least two bossings.The concrete shape of this fin Shape is particularly suitable for avoiding the elastic recoil of tube wall after shaping in the opening in fin.
- it is contemplated that two bossings of fin are by depressed part separately.This shape contributes to wall and the wing of pipe Good cohesion between opening in piece.
- it is another object of the present invention to heat exchanger, it is provided with least one fin, and this fin includes at least one such as Upper described pipe.It is provided with fin as above and the exchanger of pipe therefore has improved heat exchange performance.
The final purpose of-the present invention is the assembly including at least one pipe as above and at least one fin, wherein , there is gap between pipe and opening in the inside of the opening that pipe is configured to be incorporated in fin.
Brief description
By reading accompanying drawing, the present invention will be better understood, accompanying drawing is provided by example and substantially do not have restriction Property, in the accompanying drawings：
- Fig. 1 is the sectional view of the pipe according to the present invention；
- Fig. 2 is the front view of a part for the fin for receiving the pipe in Fig. 1.
Specific embodiment
With reference to Fig. 1, the pipe 10 according to the present invention was illustrated before being shaped by deformation.Described pipe has substantially elliptical Cross section, including longitudinal wall 12 facing each other, each wall is provided with least two sunk parts 14.In other words, from pipe External observation, pipe 10 includes substantially curved two concave shape 14.
Two longitudinal walls 12 are connected to each other by two end section 16 generally circular in shape.In this example, bossing Between 18 two sunk parts 14 being arranged in wall 12 longitudinally in each.Therefore, from external observation, each wall 12 of pipe has arrangement Convex region section between two concave shapes 14.
Pipe 10 is made up of the metal alloy being suitable to be easily deformed and is had the wall of the thickness e with substantial constant.
Along cross section, pipe has length LTubeWith width lTube, length LTubeRepresent the shape being divided among on the outside of pipe The ultimate range of two substantially circular end section 16, width lTubeRepresent two walls 12 of the pipe on the outside of pipe Between beeline.The flat ratio T of pipefCan be limited by relationship below：
Wherein flattening coefficient TfStrictly less than 0.20 to ± 0.01.
With reference to Fig. 2, generally rectangular fin 20 includes the multiple holes 22 being arranged in line along axis N.Hole in fin 20 22 by well known to a person skilled in the art shutter row 24 separates, and its function is to increase the heat exchange of fin 20.
Each opening 22 has substantially elliptical cross section, including two longitudinal edges 26 facing each other, each Edge 26 is provided with least two bossings 28.Two bossings 28 at the edge 26 of opening 22 are separated by sunk part 30 Open.Observe from the inside of opening, edge has a recessed area section and two convex region sections longitudinally in each.
Therefore, each opening 22 in fin 20 has the shape essentially identical with the shape of pipe 10, but its size is relatively Little, to allow pipe to penetrate before formation in opening 22.Therefore, each opening is configured to receive foregoing pipe, makes Obtain the assembly being formed by the opening being provided with pipe, between pipe and matched receiving opening, there is gap J.
Next it is described in the method shaping the pipe 10 according to the present invention in multiple fins 20 of heat exchanger.In the first rank Duan Zhong, pipe 10 is positioned in the opening 22 of at least one fin 20 so that pipe 10 is positioned between pipe and opening produces gap J, described gap J does not have consistent value on the whole periphery of pipe.Then, due to the expansion of the wall of pipe, pipe is made to be pressed against wing The inner side of the opening 22 in piece.
The pipe presenting and fin are not limited to above-described embodiment, and other embodiments to those skilled in the art will Clearly present.

Claims (9)

1. a kind of pipe (10) for motor vehicles heat exchanger, has the cross section including two relative longitudinal walls (12), It is characterized in that, each wall (12) is provided with least two sunk parts (14).
2. the pipe according to previous claim, wherein, two sunk parts (14) are by bossing (18) separately.
3. the pipe according to previous claim, wherein, described bossing (18) is dimensioned such that so that section It is big by 2% value in section of straight pipe that interior girth has at least than its mesospore.
4. according at least one described pipe in Claim 1-3, wherein, the wall (12) of described pipe (10) passes through substantially Circular end section (16) is connected to each other.
5. the pipe according to previous claim, wherein, according to the cross section of described pipe (10), length LTubeRepresent described Ultimate range between the section of substantially circular shape, width l are had on the outside of pipeTubeRepresent on the outside of described pipe Minimum range between two walls (12) of pipe, and the flat ratio T of pipefLimited by relationship below：
T f = l T u b e L T u b e
Wherein flattening coefficient TfStrictly less than 0.20 to ± 0.01.
6. a kind of fin (20), including at least one substantially elliptical opening (22) it is characterised in that described opening (22) Including the edge being provided with two relative longitudinal walls (26), each wall is provided with two bossings (28).
7. the fin according to previous claim, wherein, two bossings (28) are by sunk part (30) separately.
8. a kind of heat exchanger, is provided with least one fin (20) as described in aforementioned claim, and includes at least one Individual pipe (10) as any one of claim 1 to 5.
9. at least one pipe (10) as any one of claim 1 to 5 a kind of and at least one as claim 6 and 7 Any one of fin (20) assembly, wherein, described pipe is configured to the opening (22) being incorporated in described fin (20) Inside, there is gap (J) between described pipe (10) and described opening (22).
CN201580030152.9A 2014-05-05 2015-05-05 Flat tube for heat exchanger Pending CN106461349A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1454043A FR3020670B1 (en) 2014-05-05 2014-05-05 FLAT TUBE FOR HEAT EXCHANGER
FR1454043 2014-05-05
PCT/EP2015/059867 WO2015169808A1 (en) 2014-05-05 2015-05-05 Flat tube for heat exchanger

Publications (1)

Publication Number Publication Date
CN106461349A true CN106461349A (en) 2017-02-22

Family

ID=51293096

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580030152.9A Pending CN106461349A (en) 2014-05-05 2015-05-05 Flat tube for heat exchanger

Country Status (8)

Country Link
US (1) US20170067694A1 (en)
EP (1) EP3140603A1 (en)
JP (1) JP2017515087A (en)
KR (1) KR20160145138A (en)
CN (1) CN106461349A (en)
FR (1) FR3020670B1 (en)
MX (1) MX2016014498A (en)
WO (1) WO2015169808A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109210964A (en) * 2018-09-30 2019-01-15 珠海格力电器股份有限公司 A kind of heat exchanger and the air-conditioning comprising it
WO2020062728A1 (en) * 2018-09-30 2020-04-02 珠海格力电器股份有限公司 Fin and heat exchanger with same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105444470B (en) * 2015-12-24 2017-12-05 潍柴动力股份有限公司 A kind of automobile air-conditioning evaporator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269267A (en) * 1977-09-09 1981-05-26 Societe Anonyme Francaise Du Ferodo Fin and tube assembly and a method of making the assembly
JPS59134771U (en) * 1983-02-23 1984-09-08 カルソニックカンセイ株式会社 Tube mounting structure of plate-fin type heat exchanger
CN85104424A (en) * 1985-06-11 1986-12-10 Gea空冷设备哈佩尔有限公司 Air-cooled surface condenser

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US1412862A (en) * 1919-11-01 1922-04-18 Habib Vita Radiator
US1502301A (en) * 1922-09-06 1924-07-22 Fedders Mfg Co Inc Radiator
US3771595A (en) * 1971-09-22 1973-11-13 Modine Mfg Co Heat exchange device
DE3419734A1 (en) * 1984-05-26 1985-11-28 GEA Luftkühlergesellschaft Happel GmbH & Co, 4630 Bochum AIR COOLED SURFACE CAPACITOR
FR2611034A1 (en) * 1987-02-12 1988-08-19 Jean Buffet Heat-exchanger duct with deformable wall, and heat exchanger made with such ducts
CA2150437C (en) * 1995-05-29 1999-06-08 Alex S. Cheong Plate heat exchanger with improved undulating passageway
US6170565B1 (en) * 1996-12-04 2001-01-09 Zexel Corporation Heat exchanger
JP2002340490A (en) * 2001-05-18 2002-11-27 Denso Corp Heat exchanger
KR100906769B1 (en) * 2002-01-31 2009-07-10 한라공조주식회사 Heat exchanger tube with tumbling toy-shaped passages and heat exchanger using the same
JP4297794B2 (en) * 2003-02-20 2009-07-15 三菱電機株式会社 Tube expansion device for heat exchanger
FR2909912B1 (en) * 2006-12-14 2012-08-31 Valeo Systemes Thermiques METHOD FOR PRODUCING A FIN IN A HEAT EXCHANGER, A FINISH OBTAINED BY SUCH A METHOD, AND A HEAT EXCHANGER COMPRISING SUCH AILET
JP2010255918A (en) * 2009-04-24 2010-11-11 Daikin Ind Ltd Air heat exchanger
JP5850693B2 (en) * 2011-10-05 2016-02-03 日野自動車株式会社 Tube for heat exchanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269267A (en) * 1977-09-09 1981-05-26 Societe Anonyme Francaise Du Ferodo Fin and tube assembly and a method of making the assembly
JPS59134771U (en) * 1983-02-23 1984-09-08 カルソニックカンセイ株式会社 Tube mounting structure of plate-fin type heat exchanger
CN85104424A (en) * 1985-06-11 1986-12-10 Gea空冷设备哈佩尔有限公司 Air-cooled surface condenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109210964A (en) * 2018-09-30 2019-01-15 珠海格力电器股份有限公司 A kind of heat exchanger and the air-conditioning comprising it
WO2020062728A1 (en) * 2018-09-30 2020-04-02 珠海格力电器股份有限公司 Fin and heat exchanger with same

Also Published As

Publication number Publication date
WO2015169808A1 (en) 2015-11-12
KR20160145138A (en) 2016-12-19
MX2016014498A (en) 2017-05-23
EP3140603A1 (en) 2017-03-15
JP2017515087A (en) 2017-06-08
FR3020670A1 (en) 2015-11-06
FR3020670B1 (en) 2019-03-22
US20170067694A1 (en) 2017-03-09

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