EP0683372A1 - Wärmetauscher und Verfahren zu dessen Herstellung - Google Patents

Wärmetauscher und Verfahren zu dessen Herstellung Download PDF

Info

Publication number
EP0683372A1
EP0683372A1 EP95303180A EP95303180A EP0683372A1 EP 0683372 A1 EP0683372 A1 EP 0683372A1 EP 95303180 A EP95303180 A EP 95303180A EP 95303180 A EP95303180 A EP 95303180A EP 0683372 A1 EP0683372 A1 EP 0683372A1
Authority
EP
European Patent Office
Prior art keywords
tank
heat exchanger
portions
connecting portion
pipe portions
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
EP95303180A
Other languages
English (en)
French (fr)
Inventor
Masataka C/O Sanden Corporation Tsunoda
Tomonari C/O Sanden Corporation Morita
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.)
Sanden Corp
Original Assignee
Sanden Corp
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 Sanden Corp filed Critical Sanden Corp
Publication of EP0683372A1 publication Critical patent/EP0683372A1/de
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • 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
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05341—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions

Definitions

  • This invention relates to a heat exchanger for use in an air conditioning system for a vehicle and a method to facilitate assembly of such a heat exchanger.
  • Fig. 1 shows a conventional heat exchanger used in an air conditioning system, for example, an evaporator or a condenser.
  • the heat exchanger comprises a upper tank, a lower tank and a heat exchanger core disposed between the upper tank and the lower tank.
  • the heat exchanger core comprises a plurality of heat transfer tubes spaced from one another and disposed in parallel to one another.
  • the upper tank is divided into two chambers by a partition portion.
  • a lower wall of upper tank and a upper wall of lower tank are provided with a plurality of connection holes for, connecting a plurality of heat transfer tubes therebetween and, thereby, placing upper and lower tank in communication.
  • An inlet pipe and an outlet pipe are connected to the upper tank.
  • a heat exchanger medium is introduced from the inlet pipe into one chamber of the upper tank and down through heat transfer tubes and reaches the chamber to the lower tank, and flows back to other chamber of the upper tank through heat transfer tubes.
  • heat exchanger medium flows through heat transfer tubes, heat exchange occurs between the heat exchanger medium and air flow passing over heat transfer tubes.
  • a heat exchanger uses numerous heat transfer tubes to obtain a high heat exchange efficiency.
  • numerous heat transfer tubes are inserted, generally one by one, into connection holes of the upper tank and the lower tank. This assembly process is both complicated and time consuming. As a result, the operational productivity of the assembly process is low.
  • one preferred embodiment of a heat exchanger comprises a first tank and a second tank spaced vertically from said first tank.
  • Each of said first tank and said second tank includes a plurality of connection holes aligned in rows.
  • a plurality of panel units extend between the first tank and the second tank.
  • Each panel unit comprises a plurality of pipe portions aligned in a row and about equally spaced from each other and at least one connecting portion integrally connected with the pipe portions aligned in a row.
  • the plurality of pipe portions in and panel are fixedly disposed between, and in fluid communication with, the first tank and the second tank so that the at least one connecting portion contacts either the first tank or the second tank.
  • a method of manufacturing a heat exchanger comprises the steps of providing a plate member from molding material by extrusion, the plate member having a plurality of pipe portions and planar portions; cutting out portions of the plate member so that a plurality of pipe portions and at least one connecting portion remains, inserting opposite ends of each pipe portion into respective connection holes of a first tank and a second tank so that the at least one connecting portion contacts either the first tank or the second tank; and sealing the first tank and the second tank to the pipe portion with a sealing material.
  • a method of manufacturing a heat exchanger comprises the steps of forming a plurality of rectangular plate members having a plurality of half circular portions equally spaced from each other. This method further comprises inserting tubes into each half circular portion; inserting opposite ends of the tubes into respective holes of the first tank; and the second tank so that each connecting member contacts either the first tank or the second tank, and sealing the first tank and the second tank to the tubes with a sealing material.
  • assembly time is reduced, manufacturing is simplified and cost is lowered as compared to the prior art.
  • Fig. 1 is a perspective view of a prior art heat exchanger.
  • Fig. 2 is an enlarged, sectional view of the tank shown in Fig. 1 .
  • Fig. 3 is a perspective view of a heat exchanger in accordance with a present invention.
  • Fig. 4 is a cutaway, side view of a heat exchanger shown in Fig. 3 .
  • Fig. 5 is a perspective view of a heat exchanger unit in accordance with a first embodiment of the present invention.
  • Fig. 6 is a perspective view of a heat exchanger unit in accordance with a second embodiment of the present invention.
  • Figs. 7-9 are views illustrating steps of a method for manufacturing the heat exchanger unit of Fig. 5 .
  • Figs. 10-12 are views illustrating steps of a method for manufacturing the heat exchanger unit of Fig. 6 .
  • Fig. 13 is a perspective view of a heat exchanger unit in accordance with a third embodiment of the present invention.
  • Fig. 14 is a perspective view of a heat exchanger unit in accordance with a fourth embodiment of the present invention.
  • Fig. 15 is a perspective view of a heat exchanger unit in accordance with a fifth embodiment of the present invention.
  • heat exchanger 20 comprises upper tank 21, lower tank 22, and a plurality of heat exchange units 24 disposed between upper tank 21 and lower tank 22. Heat exchange occurs between the heat exchange units and a flow 57 passing through the heat exchanger.
  • Upper and lower tanks 21 and 22 may be made of an aluminum alloy or the like, and may be rectangular parallel-piped in shape.
  • Upper tank 21 comprises upper wall 21a and lower wall 21b which are joined with each other at the sides of the tank.
  • Upper tank 21 is divided by partition portion 21c, into three chambers, for example, first upper chamber 38, second upper chamber 39, and third upper chamber 40.
  • Lower tank 22 is divided by partition portion 22c into two chambers, for example, first lower chamber 41 and second lower chamber 42.
  • Lower wall 21b of upper tank 21 and upper wall 22a of lower tank 22 are provided with a plurality of connection holes 21d and a plurality of connection holes 22d, respectively, for connecting a plurality of heat exchange units 24 to tanks 21 and 22, thereby placing tanks 21 and 22 in fluid communication.
  • Inlet pipe 55 and outlet pipe 56 are connected to upper tank 21.
  • a heat exchanger medium is introduced into first upper chamber 38 via inlet pipe 55 and flows through the heat exchanger through pipe portions 25.
  • the medium may flow through the heat exchanger by the following path: first upper chamber 38 to first lower chamber 41, and then to second upper chamber 39. From second upper chamber 39, the medium may flow to second lower chamber 42 and finally back to third upper chamber 40. While the heat exchanger medium flows through pipe portions 25, heat exchange occurs between the heat exchanger medium and flow 57 passing over pipe portion 25.
  • each heat exchange unit 24 may be made of an aluminum alloy or the like.
  • Each heat exchange unit 24 includes a plurality of circular pipe portions 25 spaced from one another at about equal intervals, and connected to each other via a plurality of first connection portions 26 and second connection portions 27.
  • First and second connection portions 26 and 27 are integrally connected with pipe portions 25 and align pipe portions 25 in a row.
  • First and second connection portions are respectively positioned to be slightly spaced from upper and lower ends of heat exchange unit 24.
  • Heat exchange units 24 are substantially planar and are arranged to be substantially parallel to heat exchange air flow 57.
  • each heat exchange unit 24 includes a plurality of rectangular openings 26c between pipe portions 25.
  • Each rectangular opening 26c is framed by ridge lines of adjacent pipe portions 25, lower end portion 26b of first connection portion 26, and upper end portion 27a of second connection portion 27.
  • Ridge lines of pipe portions 25 comprise trace surfaces 25a which are formed when rectangular openings 26c are cut out from an extruding plate.
  • a row of pipe portions 25 is connected with upper tank 21 and lower tank 22 by inserting respective ends of pipe portions 25 into connection holes 21d and 22d.
  • Upper end portion 26a of first connection portion 26 contacts lower wall 21b of upper tank 21 and lower end portion 27b contacts upper wall 22a of lower tank 22.
  • Assembly of heat exchanger 20 is completed by, for example, brazing the components together.
  • the heat exchanger according to the above embodiment enables a simplified manufacturing process to be used, thereby reducing the cost and time associated with manufacturing as compared with the prior art.
  • Fig. 6 illustrates a second embodiment of the present invention.
  • Each heat exchange unit 34 includes a plurality of circular pipe portions 35 spaced from one another at about equal intervals. Pipe portions 35 are connected to each other via a plurality of first connection portions 36, formed between adjacent pipe portions 25.
  • the heat exchange unit 34 also includes second portions 37, formed at both ends of unit 34. Each end of pipe portions 35 projects substantially beyond upper end portion 36a and lower end portion 36b of first connection portion 36 for insertion into connection holes 21d and 22d.
  • a plurality of first connection portions 36 and second connection portions 37 are integrally connected with pipe portions 35 and align a plurality of pipe portions 35 in a row.
  • Heat exchange units 34 are substantially planar and are arranged to be substantially parallel to heat exchange air flow 57.
  • each first connection portion 36 includes rectangular opening 36c at the center thereof.
  • the width of rectangular opening 36c is smaller than the distance between pipe portions 35 and the height of rectangular opening 36c is smaller than the height of first connection portion 36.
  • each rectangular opening 36c is designed to be substantially parallel to the longitudinal axis of pipe portion 35.
  • the heat exchanger structure according to the second embodiment has substantially the same advantages as those of the first embodiment. Moreover, in the second embodiment, the mechanical strength of heat exchange unit 34 is substantially increased. The net weight of the heat exchanger is also increased.
  • plate 124 includes a plurality of pipe portions 25 spaced from one another at about equal intervals by plane portions 126 and pipe portions 25 at both sides thereof.
  • Plate 124 may be integrally formed from a material such as, for example, an aluminum alloy, by a process such as, for example, extrusion (not shown).
  • lower end portion 28, upper end portion 29 and center portion 26c maybe removed from each plane portion 126 to form connection portions 26 and 27. Removal of these portions may be accomplished by any suitable cutting process, for example, pressing. The removal may be done either simultaneously or in steps e.g. , removal of upper sections, followed by removal of lower section, followed by removal of center section.
  • Plate 224 includes a plurality of pipe portions 35 spaced from one another at about equal intervals by plane portions 126, and further includes plane portions 126 at both sides thereof.
  • Plate 224 may be integrally formed from a material such as aluminum alloy, by a process such as extrusion (not shown).
  • lower end portion 38, upper end portion 39, and center portion 36c maybe removed from each plane portion 126 to form connection portions 36 and 37. The removal may be accomplished by any suitable cutting process such as, for example, pressing. Removal may be done either simultaneously or in steps, e.g. removal of upper section, followed by removal of lower section, followed by removal of center section.
  • Fig. 13 illustrates a third embodiment of a heat exchanger unit.
  • the third embodiment is a modification of the first embodiment with similar elements having the same reference numerals for ease of description.
  • Each heat exchange unit 44 of the third embodiment includes first connection portions 26 integrally connected between pipe portions 25 aligned in a row. First connection portions 26 are spaced slightly from upper ends of pipe portions 25. Thus, each heat exchange unit 44 includes a plurality of hollow portions 144 between adjacent pipe portions 25.
  • Fig. 13 has substantially the same advantages as those of the first embodiment. Additionally, in this embodiment, the net weight of heat exchange unit 44 is substantially decreased in comparison to the first embodiment. Heat exchange unit 44 does not limit the length by which pipe portions 25 are inserted into one of the tanks.
  • Fig. 14 illustrates a fourth embodiment of a heat exchanger unit.
  • the fourth embodiment is a modification of the first embodiment with similar elements having the same reference numerals for ease of description.
  • Each heat exchange unit 54 includes connection portions 28 integrally connected between pipe portions 25 aligned in row. Connections portions 28 are positioned substantially at the center of heat exchange unit 54. Each heat exchange unit 54 includes a plurality of first hollow portions 154 and second hollow portions 155 between adjacent pipe portions 25.
  • Fig. 14 has substantially the same advantages as those of the first embodiment. Additionally, in this embodiment, as in the third embodiment, the net weight of heat exchange unit 54 is substantially decreased in comparison to the first embodiment. Heat exchange unit 54 does not limit the length by which pipe portions 25 are inserted into either tank.
  • Fig. 15 illustrates a fifth embodiment of heat exchange unit according to the invention.
  • Each heat exchange unit 64 includes a plurality of circular pipes 31 spaced from one another at about equal intervals, first connection member 29 and second connection member 30.
  • First connection member 29 includes a plurality of half ring portions 29a spaced from one another at about equal intervals.
  • Second connection member 30 includes a plurality of half ring portions 30a spaced from one another at about equal intervals.
  • Each half ring portion 29a and 30a is formed so that its inner diameter is about equal to or preferably smaller than outer diameter of circular pipes 31.
  • First connection member 29 and second connection member 30 are respectively spaced slightly from upper end and lower end of circular pipes 31 so that each pipe 31 projects beyond upper end 29c and lower end 30c of first connection portion 29 and second connection portion 30.
  • Each pipe is inserted into half ring portions 29a and 30a of connection members 29 and 30 and fixed thereto by a process such as brazing.
  • Heat exchange unit 64 is connected with upper tank 21 and lower tank 22, so that respective ends of each pipe 31 are inserted into respective connection holes 21d and 22d. Further, upper end portion 29c of first connection member 29 contacts lower wall 21b of upper tank and lower end portion 30c contacts upper wall 22a of lower tank 22. Heat exchange unit 64 is substantially planar and is arranged to be substantially parallel to heat exchange flow 57.
  • Heat exchange unit 64 may be formed by the following method. First, a plurality of rectangular plate members 29 and 30 are provided, each plate member having a plurality of half ring portions 29a and 30a spaced from each other at equal intervals. The half ring portions are formed by a process such as pressing. Each tube 31 is inserted into a respective half ring portion 29a and 30a of plate members 29 and 30. Opposite ends of tubes 31 are inserted into respective holes 21d and 22d of first tank 21 and second tank 22 so that each of plate member 29 and 30 contacts either first tank 21 or second tank 22. First tank 21 and second tank 22 are sealed to pipe portions 25 with a sealing material.
  • the heat exchange unit 64 of the fifth embodiment has substantially the same advantages as those of the first embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP95303180A 1994-05-16 1995-05-11 Wärmetauscher und Verfahren zu dessen Herstellung Ceased EP0683372A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP124691/94 1994-05-16
JP12469194A JPH07310992A (ja) 1994-05-16 1994-05-16 多管式熱交換器

Publications (1)

Publication Number Publication Date
EP0683372A1 true EP0683372A1 (de) 1995-11-22

Family

ID=14891708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95303180A Ceased EP0683372A1 (de) 1994-05-16 1995-05-11 Wärmetauscher und Verfahren zu dessen Herstellung

Country Status (3)

Country Link
EP (1) EP0683372A1 (de)
JP (1) JPH07310992A (de)
CN (1) CN1123907A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101354839B1 (ko) * 2009-06-26 2014-01-22 가부시키가이샤 씨케이유 열교환기
JP6448409B2 (ja) * 2015-02-25 2019-01-09 住友精密工業株式会社 オープンラック式気化器の伝熱管交換方法及び当該交換方法に用いる伝熱管
JP6784632B2 (ja) * 2017-03-31 2020-11-11 荏原冷熱システム株式会社 熱交換器用接続装置
CN109838930A (zh) * 2017-09-26 2019-06-04 上海电气集团股份有限公司 一种熔盐吸热器及其单元
CN109556443A (zh) * 2017-09-27 2019-04-02 沈阳铝镁设计研究院有限公司 一种焙烧后氧化铝的热能回收方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926187A1 (de) * 1969-05-22 1970-11-26 Schoell Dr Ing Guenter Waermeaustauschelement aus Werkstoffen mit geringer Waermeleitfaehigkeit und Festigkeit
US4657069A (en) * 1986-03-31 1987-04-14 Deere & Company Heat exchange tube retainer
EP0539638A1 (de) * 1990-10-22 1993-05-05 Institut Français du Pétrole Wärmeaustauscher mit Rohren die durch Streckmetall verbunden sind
EP0572187A2 (de) * 1992-05-29 1993-12-01 Anthony Joseph Cesaroni Plattenwärmetauscher hergestellt aus Röhren und Platten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926187A1 (de) * 1969-05-22 1970-11-26 Schoell Dr Ing Guenter Waermeaustauschelement aus Werkstoffen mit geringer Waermeleitfaehigkeit und Festigkeit
US4657069A (en) * 1986-03-31 1987-04-14 Deere & Company Heat exchange tube retainer
EP0539638A1 (de) * 1990-10-22 1993-05-05 Institut Français du Pétrole Wärmeaustauscher mit Rohren die durch Streckmetall verbunden sind
EP0572187A2 (de) * 1992-05-29 1993-12-01 Anthony Joseph Cesaroni Plattenwärmetauscher hergestellt aus Röhren und Platten

Also Published As

Publication number Publication date
JPH07310992A (ja) 1995-11-28
CN1123907A (zh) 1996-06-05

Similar Documents

Publication Publication Date Title
US5372188A (en) Heat exchanger for a refrigerant system
US5025855A (en) Condenser for use in a car cooling system
US5307870A (en) Heat exchanger
US5348081A (en) High capacity automotive condenser
EP0660063B1 (de) Wärmetauscher
US5082051A (en) Heat exchanger having a corrosion prevention means
US5582239A (en) Heat exchanger and method of making same
US5172761A (en) Heat exchanger tank and header
US5236042A (en) Heat exchanger and method of making the same
USRE35742E (en) Condenser for use in a car cooling system
US5411079A (en) Heat exchanger and method for manufacturing the same
US6073688A (en) Flat tubes for heat exchanger
EP0559983A1 (de) Verdampfer oder Verdampfer/Verflüssiger
EP0881449A2 (de) Kühlröhren für Wärmetauscher
US6293011B1 (en) Heat exchanger for vehicle air conditioner
US5513700A (en) Automotive evaporator manifold
US5190100A (en) Condenser for use in a car cooling system
EP0683371B1 (de) Wärmetauscher
EP0657711B1 (de) Wärmetauscher
JPH0345300B2 (de)
US6260271B1 (en) Tubular body having integral branch tubes and method for producing the same
EP0384612A2 (de) Ölkühler in einem Tank
EP0683372A1 (de) Wärmetauscher und Verfahren zu dessen Herstellung
US5163509A (en) Manifold assembly and method of making same
EP0805331A2 (de) Multiröhren-Wärmetauscher

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19960503

17Q First examination report despatched

Effective date: 19971107

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20001019