EP0798530B1 - Wärmetauscher - Google Patents

Wärmetauscher Download PDF

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Publication number
EP0798530B1
EP0798530B1 EP19960119229 EP96119229A EP0798530B1 EP 0798530 B1 EP0798530 B1 EP 0798530B1 EP 19960119229 EP19960119229 EP 19960119229 EP 96119229 A EP96119229 A EP 96119229A EP 0798530 B1 EP0798530 B1 EP 0798530B1
Authority
EP
European Patent Office
Prior art keywords
tank
partition
heat exchanger
protrusions
pair
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.)
Expired - Lifetime
Application number
EP19960119229
Other languages
English (en)
French (fr)
Other versions
EP0798530A1 (de
Inventor
Hirotaka C/O Sanden Corporation Kado
Akimichi c/o Sanden Corporation Watanabe
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 EP0798530A1 publication Critical patent/EP0798530A1/de
Application granted granted Critical
Publication of EP0798530B1 publication Critical patent/EP0798530B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • 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
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes

Definitions

  • the present invention relates to a heat exchanger used for, for example, air conditioners for vehicles, and more particularly to a heat exchanger having a tank and a partition disposed in the tank.
  • a tank structure for a heat exchanger having a partition for dividing an interior of a tank into at least two chambers is well known.
  • JP-A-HEI 7-103683 discloses a structure as shown in FIG. 4.
  • tank 30 comprises at least two tank members 31 and 32, and the tank members 31 and 32 forms the tank 30 by being connected to each other by, for example, brazing.
  • Partition 33 is provided in tank 30 for dividing the interior of the tank 30 into separate chambers.
  • This partition 33 has a projection 34 for positioning. Projection 34 is inserted into a hole 35 defined on the wall of tank member 32, thereby positioning partition 33 in tank 30.
  • a flux guide hole 36 is provided on tank member 31 for introducing a flux for brazing into the interior of tank 30.
  • partition 33 is disposed in and fixed to tank 30 as follows. After projection 34 of partition 33 is inserted into hole 35 of tank member 32, the tank member 32 and tank member 31 are assembled. Then, the respective assembled members are connected to each other by, for example, brazing in a furnace at a time. In the brazing, a flux F is injected from hole 36 of tank member 31 into the interior of tank 30. The injected flux is provided between the inner surface of tank 30 and the edge of partition 33, thereby improving the brazing condition.
  • Japanese Utility Model Laid-Open HEI 2-54078 on which the preamble of claim 1 is based discloses another tank structure as shown in FIG. 5.
  • a slot 38 is defined on the wall of tank 37 for inserting partition 40 into the interior of the tank 37 through the slot 38.
  • An arclike groove 39 is defined on the inner surface of tank 37 at a position facing slot 38 for fixing partition 40 by engaging the edge of the partition 40 with the groove 39.
  • EP 0 514 248 A discloses a heat exchanger having a tank, at least one partition disposed in the tank for deviding an interior of the tank into at least two chambers.
  • a pair of protrusions extending in a circumferencial direction of an inner surface of the tank and arranged in an axial direction of the tank are provided on an inner surface of the tank to hold an edge portion of the partition there between.
  • a heat exchanger having a tank structure which can incooperate a partition into a tank for dividing an interior of the tank into separate chambers without causing decrease of the strength of the tank, and which can increase the freedom of assembly of the tank, improve the working ability for the assembly and improve the connection property of the respective members, particularly, the breathing condition.
  • the pair of protrusions provided on the inner surface of the first tank member so as to extend in the circumferential direction and to be arranged in the axial direction can hold at least one edge portion of the partition between the pair of protrusions.
  • the held partition can be disposed at a desired predetermined position in the tank at a high accuracy. This positioning can be easily achieved merely by inserting the edge portion of the partition between the pair of protrusions.
  • the respective members including the partition are brazed. Therefore, the partition can be fixed precisely at a predetermined position in the tank.
  • a necessary amount of flux required for achieving a good brazing can be easily retained between the pair of protrusions merely by applying flux at a portion between the pair of protrusions before brazing.
  • a molten brazing material flows into the portion between the pair of protrusions naturally, and a sufficiently great amount of the brazing material can be retained at this portion.
  • the partition and the inner surface of the tank can be brazed at a great strength.
  • the pair of protrusions are formed by the wall itself of the first tank member by processing, for example, drawing, bending, or pressing, the wall so as to protrude a part of the wall into the interior of the tank
  • the pair of protrusions having a function for positioning the partition can be provided in the tank without creating a portion small in thickness of wall, as in a conventional structure where a groove is defined on the inner surface of a tank such as one shown in FIG. 6. Therefore, decrease of the strength of the tank does not occur.
  • the partition when a slot is defined on the second tank member, the partition can be easily inserted into the interior of the tank through the slot in spite of a condition before or after assembly of the tank. Therefore, the working ability can be improved as well as the working freedom in the process for assembly can be increased.
  • the application of flux also can be performed in spite of before or after assembly of the tank. For example, flux can be easily provided through the slot defined on the second tank member at a stage of temporary assembly of the tank.
  • partition and/or the first and second tank members are constructed from a material having a structure clad with a brazing material, both parts can be brazed to each other extremely easily.
  • FIG. 1 is a perspective view of a heat exchanger according to a first embodiment of the present invention.
  • FIG. 2 is an enlarged, exploded partial perspective view of a tank of the heat exchanger depicted in FIG. 1.
  • FIG. 3 is a partial, vertical sectional view of the tank depicted in FIG. 2.
  • FIG. 4 is a cross-sectional view of a tank of a conventional heat exchanger.
  • FIG. 5 is a partial side view of a tank of another conventional heat exchanger.
  • Heat exchanger 1 is constructed as a heater for vehicles heated by water supplied after cooling an engine.
  • Heat exchanger 1 includes a pair of headers construacted as a first tank 6 and a second tank 7.
  • a plurality of flat heat transfer tubes 2 (for example, water tubes or refrigerant tubes) are fluidly interconnected between first and second tanks 6 and 7.
  • flat heat transfer tube 2 is formed as a flat tube.
  • Corrugated fins 3 are disposed on both surfaces of each heat transfer tube 2.
  • Side members 4 and 5 are provided on the upper surface of the uppermost fin 3 and on the lower surface of the lowermost fin 3, respectively.
  • Each of tanks 6 and 7 is sealed at both open ends by caps 21 and 22, respectively.
  • a partition 10 is provided in first tank 6 for dividing the interior of the first tank 6 into two chambers 6a and 6b.
  • An inlet pipe 8 for introducing a heat transfer medium, for example, refrigerant or water, into the interior of first tank 6 is connected to chamber 6a.
  • An outlet pipe 9 for discharging the heat transfer medium from the interior of first tank 6 is connected to chamber 6b.
  • Second tank 7 does not have a partition therein. Although only one partition 10 is provided in first tank 6 in this embodiment, a plurality of partitions may be provided therein and the interior of a tank may be divided into three or more chambers, as needed. Further, second tank 7 may have a partition, as needed.
  • First tank 6 comprises at least two members connected to each other.
  • first tank 6 comprises a first tank member 11 and a second tank member 12 connected to each other.
  • First tank member 11 is constructed as a member having a U-shaped cross section with an opening at its upper end.
  • Second tank member 12 is constructed as a plate-like member having connecting portions 12a and 12b formed by bending or pressing at both end portions in the width direction. The upper edge portions 11a and 11b of first tank member 11 are inserted into the respective connecting portions 12a and 12b of second tank member 12 and connected thereto to form first tank 6.
  • a pair of protrusions 13a and 13b are provided on the inner surface of first tank member 11. Pair of protrusions 13a and 13b extend in the circumferential direction of the inner surface of first tank 6 and they are arranged in the axial direction of first tank 6 at a predetermined position. Pair of protrusions 13a and 13b hold an edge portion 10a (lower edge portion and side edge portions) of partition 10 in a concave portion 16 formed between the pair of protrusions 13a and 13b as shown in FIG. 3.
  • pair of protrusions 13a and 13b are formed by drawing a part of the wall itself of first tank member 11 in this embodiment, they may be formed by preparing other members and connecting the members onto the inner surface of the first tank member 11.
  • a slot 15 is defined on second tank member 12 at a central position in the longitudinal direction of the second tank member 12, and the slot 15 extends in the width direction of the second tank member 12.
  • Partition 10 is inserted into the interior of first tank 6 through slot 15 down to a position where the lower end of the partition 10 comes into contact with the inner surface of first tank member 11.
  • the position provided with slot 15 is determined such that the slot 15 is located at a position just above concave portion 16 formed between pair of protrusions 13a and 13b when first and second tank members 11 and 12 are assembled.
  • a plurality of other slots 14 are defined on second tank member 12. One opening end portion of each tube 2 is inserted into each slot 14 and connected to second tank member 12 for communicating the fluid path of each tube 2 with the interior of first tank 6.
  • partition 10 and/or first and second tank members 11 and 12 are constructed from a material having a structure clad with a brazing material, for example, an aluminum alloy material clad with a brazing material. Partition 10 is brazed to first and second tank members 11 and 12 at positions of the side surfaces of pair of protrusions 13a and 13b, a portion between the pair of protrusions 13a and 13b and the inner edge portion of slot 15.
  • a heat transfer medium for example, water or refrigerant introduced through inlet pipe 8 flows into chamber 6a of first tank 6, and is distributed into the respective tubes 2 disposed upper side in FIG. 1.
  • the respective flows of heat transfer medium join in second tank 7.
  • the joined heat transfer medium flows in the second tank 7 in the axial direction, and then the heat transfer medium is distributed into the respective tubes 2 disposed lower side in FIG. 1.
  • the respective flows of heat transfer medium join in chamber 6b of first tank 6, and the heat transfer medium is then discharged through outlet pipe 9.
  • Pair of protrusions 13a and 13b are formed on the inner surface of first tank member 11 and edge portion 10a of partition 10 is held in concave portion 16 formed between the pair of protrusions 13a and 13b when the partition 10 is assembled. Therefore, partition 10 can be disposed precisely at a predetermined position in first tank 6. At the precisely positioned condition, the partition 10 is brazed to first tank 6.
  • partition 10 is held by pair of protrusions 13a and 13b extending in the circumferential direction on the inner surface of tank 6, the respective edge portions of the partition 10 can be surely fixed temporarily before brazing and then brazed to the inner surface of the tank 6 at a desired condition.
  • a molten brazing material naturally flows into concave portion 16 between pair of protrusions 13a and 13b and a sufficiently great amount of the brazing material can be retained in the concave portion 16 for achieving a better brazing condition.
  • the above-described sufficiently great amount of brazing material easily can fill the gap up. As a result, a good brazing condition can be ensured and a great strength of the brazed portion can be easily obtained.
  • a flux may be applied on a surface to be brazed.
  • the flux can be easily applied onto concave portion 16 between pair of protrusions 13a and 13b before assembly of first and second tank members 11 and 12.
  • the flux can be easily provided onto concave portion 16 from upper side through slot 15 by, for example, injection.
  • a further better condition for brazing can be-realized before actual brazing.
  • pair of protrusions 13a and 13b are formed from the wall itself of first tank member 11 by drawing, the pair of protrusions 13a and 13b having a good function for positioning and holding partition 10 can be efficiently provided in tank 6 without forming a thinner and weaker portion, as in a conventional structure such as one shown in FIG. 6. Therefore, a sufficiently great strength of tank 6 can be ensured.
  • partition 10 can be easily inserted into tank 6 through the slot 15 and easily disposed at a predetermined position in the tank 6 in spite of a condition before or after connection of first and second tank members 11 and 12. Therefore, the working efficiency for assembly can be greatly improved, and the freedom for the assembly can be increased.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Claims (6)

  1. Wärmetauscher mit einem Tank (6),
    der mindestens aus einem ersten und einem zweiten Tankteil (11, 12) gebildet ist, die miteinander verbunden sind,
    wobei mindestens eine Trennwand (10) in dem Tank (6) zum Unterteilen des Inneren des Tankes (6) in mindestens zwei Kammern (6a, 6b) vorgesehen ist und
    ein Schlitz (15) in dem zweiten Tankteil (12) zum Einführen der Trennwand (10) in das Innere des Tankes (6) durch den Schlitz (15) abgegrenzt ist,
    dadurch gekennzeichnet,
    daß ein Paar von Vorsprüngen (13a, 13b), die sich in einer Umfangsrichtung einer Innenoberfläche des Tankes (6) erstrecken und in der axialen Richtung des Tankes (6) angeordnet sind, auf einer Innenoberfläche des ersten Tankteiles (11) zum Halten eines unteren Kantenabschnittes und Seitenkantenabschnitten (10a) der Trennwand (10) dazwischen vorgesehen ist.
  2. Wärmetauscher nach Anspruch 1, bei dem das Paar von Vorsprüngen (13a, 13b) durch Herausdrücken eines Teiles einer Wand des ersten Tankteiles (11) in ein Inneres des Tankes (6) gebildet ist.
  3. Wärmetauscher nach einem der vorhergehenden Ansprüche, bei dem die Trennwand (10) mit der Innenoberfläche des Tankes (6) verbunden ist.
  4. Wärmetauscher nach Anspruch 3, bei dem die Trennwand (10) an die Innenoberfläche des Tankes (6) gelötet ist.
  5. Wärmetauscher nach Anspruch 4, bei dem die Trennwand (10) und/oder das erste und zweite Tankteil (11, 12) aus einem Material aufgebaut sind, das mit einem Lötmaterial beschichtet ist.
  6. Wärmetauscher nach Anspruch 4 oder 5, bei dem ein Flußmittel auf die innere Oberfläche des Tankes (6) vor dem Löten mindestens an einer Position zwischen dem Paar von Vorsprüngen (13a, 13b) aufgebracht ist und die Trennwand (10) an die Innenoberfläche des Tankes (6) unter Benutzung des Flußmittels gelötet ist.
EP19960119229 1996-03-29 1996-11-29 Wärmetauscher Expired - Lifetime EP0798530B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10337696A JPH09269199A (ja) 1996-03-29 1996-03-29 熱交換器
JP103376/96 1996-03-29

Publications (2)

Publication Number Publication Date
EP0798530A1 EP0798530A1 (de) 1997-10-01
EP0798530B1 true EP0798530B1 (de) 1998-11-04

Family

ID=14352388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960119229 Expired - Lifetime EP0798530B1 (de) 1996-03-29 1996-11-29 Wärmetauscher

Country Status (3)

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EP (1) EP0798530B1 (de)
JP (1) JPH09269199A (de)
DE (1) DE69600915T2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3277887B2 (ja) 1998-06-19 2002-04-22 日本電気株式会社 送受信方法、送受信回路および送受信回路の制御方法
JP2000304488A (ja) * 1999-04-23 2000-11-02 Calsonic Kansei Corp アルミニウム合金製熱交換器
EP2075522B1 (de) * 2007-12-28 2018-08-22 VALEO AUTOSYSTEMY Sp. Z. o.o. Wärmeaustauschbündel für Wärmetauscher
FR3013436B1 (fr) * 2013-11-18 2018-12-07 Valeo Systemes Thermiques Collecteur pour echangeur de chaleur
FR3034185B1 (fr) * 2015-03-24 2018-04-27 Valeo Systemes Thermiques Boite collectrice pour echangeur de chaleur de circuit de climatisation de vehicule automobile, et echangeur de chaleur comprenant une telle boite collectrice.
DE102015223188A1 (de) * 2015-11-24 2017-05-24 Mahle International Gmbh Wärmeübertrager
JP2017122538A (ja) * 2016-01-07 2017-07-13 株式会社デンソー 熱交換器
KR102173324B1 (ko) * 2017-09-15 2020-11-04 한온시스템 주식회사 일체형 열교환기
CN115420134A (zh) * 2017-09-15 2022-12-02 翰昂汽车零部件有限公司 一体式热交换器
EP3663695B1 (de) * 2018-12-04 2021-08-18 Valeo Systemes Thermiques Konstitutiver sammelbehälter für einen wärmetauscher

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0627447B2 (ja) 1988-08-19 1994-04-13 株式会社三協精機製作所 便器用調速装置
FR2676535B1 (fr) * 1991-05-14 1993-07-23 Valeo Thermique Moteur Sa Echangeur de chaleur muni d'une boite a fluide tubulaire a cloisons transversales, et procede pour sa realisation.
DE4137037A1 (de) * 1991-07-02 1993-01-14 Thermal Waerme Kaelte Klima Sammler fuer einen flachrohrverfluessiger
JPH07103683A (ja) 1993-10-05 1995-04-18 Nippondenso Co Ltd 熱交換器

Also Published As

Publication number Publication date
DE69600915T2 (de) 1999-05-12
EP0798530A1 (de) 1997-10-01
JPH09269199A (ja) 1997-10-14
DE69600915D1 (de) 1998-12-10

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