WO2011114952A1 - 熱交換器およびその製造方法 - Google Patents
熱交換器およびその製造方法 Download PDFInfo
- Publication number
- WO2011114952A1 WO2011114952A1 PCT/JP2011/055450 JP2011055450W WO2011114952A1 WO 2011114952 A1 WO2011114952 A1 WO 2011114952A1 JP 2011055450 W JP2011055450 W JP 2011055450W WO 2011114952 A1 WO2011114952 A1 WO 2011114952A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tank
- heat exchanger
- pipe
- inlet
- outlet
- Prior art date
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Classifications
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- 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
- F28F9/0246—Arrangements for connecting header boxes with flow lines
-
- 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
- F28F2220/00—Closure means, e.g. end caps on header boxes or plugs on conduits
Definitions
- the present invention relates to a heat exchanger such as a heater core used in a vehicle air conditioner and the like, and a method for manufacturing the heat exchanger, and more particularly, to a heat exchanger and a method for manufacturing the same.
- connection part that connects between the tank in the heater core and the pipe as the external pipe is a long dome-shaped tank section and a substantially circular pipe section. Many of them have complicated structures so that they are connected as continuously as possible.
- FIG. 1 of Patent Document 1 describes a heat exchange core of a type in which a pipe joint is inserted into the side surface of a tank.
- the pipe connection part is constituted by a joint member in which a pipe insertion part and a tank insertion part are integrally formed.
- the joint member is formed so that the cross section of the flow path continuously changes from a circular shape on the pipe side to an oval shape on the tank side.
- the pipe connecting portion is attached so as to cover the end of the tank from the joint member to which the pipe subjected to the terminal processing is attached, and the tank end. It is comprised from the cap member which seals. Since the cap member is fitted to the outside of the tank, the cross-sectional shape thereof is formed so as to gradually change from the dome shape of the tank outer cross section to the circular shape of the pipe cross section.
- an object of the present invention is to provide a heat exchanger capable of forming a connection portion between an external pipe and a tank in a small size and at a low cost, and a manufacturing method thereof.
- the heat exchanger has a tank end surface on the external piping side on an end surface on the external piping side of a tank provided on the opening side through which the heat medium is transferred via the external piping.
- a cap member having a flat surface portion to be formed and a cylindrical portion standing from the flat surface portion; a fitting hole that can be fitted to the cylindrical portion; And a pipe connecting portion including a joint member provided with the above.
- the tank is, for example, an inlet tank provided on the inlet side into which the heat medium is fed via one external pipe, or the heat medium is fed via another external pipe.
- a tank provided across the inlet side and the outlet side of the heat medium may also be used.
- the cap member is provided inside the tank rather than the outer shape of the inlet tank or the outlet tank.
- the space efficiency is improved by providing the cap member on the inner side of the outer shape of the tank.
- the pipe connecting part for connecting the external pipe and the tank can be fitted to the cylindrical part and the cap member having the flat part and the cylindrical part. Since the joint member is provided with the fitting hole and the pipe contact portion, the pipe connection portion can be formed at a low cost while setting the length of the heat medium in the flow path direction small. Moreover, the same joint member can be used for external piping of the same size, and the same cap member can be used for tanks of the same size, so that one member can be used more widely. Become.
- the heat exchanger of the present invention it is advantageous to reduce the area of the tank cross section in order to reduce the size of the tank.
- the heat transfer tube is formed in a flat shape. Therefore, it is preferable to form the tank cross section in a shape close to a rectangle, but in order to maintain a good flow state of the heat medium flowing between the tank and the external pipe, the flow path of the heat medium is formed in a curve. It is advantageous. That is, it is preferable that the cross-section of the cylindrical portion and the fitting hole that are mutually fitted and constitute a part of the flow path of the heat medium are formed in a substantially oval shape.
- first and second projecting surfaces are respectively formed at the end of the cylindrical portion on the external pipe side so as to face each other on the short axis of the cross section. Utilizing such first and second projecting surfaces, the cylindrical portion can be easily subjected to a process of expanding in a state of being fitted in the fitting hole and fixing in the fitting hole. Can do.
- a stepped portion capable of contacting the tank-side end surface of the joint member is formed on the outer surface side of the cylindrical portion.
- the flat portion is provided with an engaging claw capable of engaging with an engaging hole formed in a tank member forming the tank.
- the heat medium is sent via an inlet tank provided on the inlet side through which the heat medium is fed via one external pipe and another external pipe.
- a method of manufacturing a heat exchanger according to the present invention is fitted with a pipe contact portion in which an external pipe is in contact with an end face of an opening-side tank to which a heat medium is transferred.
- the tank member forming the tank communicating with the heat transfer tube and the plane portion are joined to form a pipe connecting portion that connects the tank and the external pipe. It consists of a way to do.
- the tank is, for example, an inlet tank provided on the inlet side of the heat medium or an outlet tank provided on the outlet side of the heat medium. It may be provided across the entrance side and the exit side.
- a pipe connection part that connects an external pipe and a tank includes a joint member that includes a pipe contact part and a fitting hole, a cylindrical part, and a flat surface. Since the tank member and the flat surface portion of the cap member are joined after the cap member having the portion is fitted, the pipe connection portion can be made inexpensive while setting the length in the flow direction of the heat medium small. It becomes possible to form. In particular, since both members can be stored in an intermediate assembled state in which the joint member and the cap member are fitted, and can be prepared for use in the subsequent joining process with the tank member, the efficiency and simplicity of the assembly process can be improved. Can be achieved.
- the cylindrical portion is expanded after being fitted into the fitting hole.
- a protruding surface is formed so that a part of the cylindrical side surface extends in a protruding shape from the end of the cylindrical portion on the external piping side, and the protruding surface is bent toward the fitting hole. It is preferable that the cylindrical portion is expanded. As described above, by temporarily expanding the opening after the tubular portion is inserted into the fitting hole, the temporary assembly of the joint member and the cap member can be performed easily and quickly.
- the joint member is brought into contact with a stepped portion provided on the outer surface side of the cylindrical portion.
- the engaging claw provided on the planar portion is engaged with the engaging hole formed in the tank member, and then the tank member and the planar portion are joined. It is preferable to do.
- the temporary assembly work between the members becomes easy, and the subsequent main assembly work such as integral brazing can be efficiently performed.
- the heat exchanger and the method for manufacturing the same it is possible to form the pipe connection part that connects the external pipe and the tank at a low cost while setting the length of the heat medium in the flow path direction small. Become.
- the members constituting the pipe connection portion can be used more widely for product groups having various dimensions.
- FIG. 2 is a partially enlarged perspective view in which a vicinity of a pipe connecting portion of the heater core in FIG. 1 is enlarged.
- the joint member which comprises the piping connection part of FIG. 2 is shown, (A) is a front view, (B) is the side view seen from the right side of (A).
- the cap member which comprises the piping connection part of FIG. 2 is shown, (A) is a front view, (B) is the side view seen from the right side of (A).
- the fitting process of the joint member and cap member which comprise the piping connection part of FIG. 2 is demonstrated, (A) is a top view which shows the state before fitting, (B) shows the state after fitting. It is a top view.
- FIG. 1 is a perspective view showing a heater core 1 according to an embodiment of the present invention.
- the heater core 1 includes an inlet tank 3 into which a heat medium is introduced via an external pipe 2 on the inlet side, and a plurality of stacked heat transfer tubes 4 that transfer heat from the inlet tank 3 to exchange heat.
- An outlet tank 5 from which the heat medium from the heat transfer tube 4 is recovered, and an outlet-side external pipe 6 from which the heat medium is discharged from the outlet tank 5 are provided.
- the heat exchange fin (outer fin) which is not performed is provided.
- Pipe connection portions 7 and 8 are provided at a connection portion between the external pipe 2 and the inlet tank 3 and a connection portion between the external pipe 6 and the outlet tank 5, respectively.
- the length of the pipe connecting portions 7 and 8 in the flow path direction is very short, and therefore the distance L from the side surface of the heater core 1 to the bent portions of the external pipes 2 and 6 is set short.
- Such a heater core 1 meets the recent demand for downsizing of the apparatus.
- FIG. 2 is a partially enlarged perspective view in which the vicinity of the pipe connecting portion 8 on the outlet side of the heater core 1 is enlarged.
- the joint member 12 having a pipe insertion hole into which the external pipe 6 is inserted is fitted into the cap member 11 having a flat portion that forms the end face of the outlet tank 5. Is formed.
- the structure similar to the piping connection part 8 is employ
- the outlet tank 5 includes a cap member 11, a seat plate member 10 having a tube insertion hole into which the heat transfer tube 4 is inserted, and a cover member 13 that forms a cylindrical side surface of the outlet tank 5 together with the seat plate member 10. It is formed by combining.
- the engaging claw 14 is formed so as to protrude from the upper end portion of the flat portion 11 a of the cap member 11.
- the flat surface portion 11a of the cap member 11 is located inside the tank from the outer shape of the outlet tank 5, that is, from the hollow end surface of the outlet tank 5 formed by the seat plate member 10 and the cover member 13 to the inner side of the tank.
- FIG. 3 shows the joint member 12 constituting the pipe connection portion 8.
- the joint member 12 is formed in a stepped cylindrical shape whose inner and outer diameters change stepwise, and an oval fitting hole 12a is provided on the bottom surface on the small diameter side.
- the front end surface of the external pipe 6 is brought into contact with the step surface 12b inside the joint member 12 and is fixed by brazing.
- FIG. 4 shows the cap member 11 constituting the pipe connection portion 8.
- the cap member 11 includes a flat portion 11a and a cylindrical portion 11b, and an engaging claw 14 that can be engaged with the engaging hole 13a of the cover member 13 at a position slightly to the right of the center of the upper end of the flat portion 11a. Is provided.
- the inlet tank 3 is also provided with an engaging claw (not shown) similar to the engaging claw 14, but is provided slightly to the left of the center unlike the engaging claw 14 in order to prevent erroneous assembly.
- Engaging claws 17 and 18 that can be engaged with the engaging grooves 13b of the cover member 13 are provided at the left and right lower ends of the flat portion 11a.
- the cylindrical part 11b is erected from the flat part 11a so as to have a substantially elliptical cross section.
- Projecting surfaces 15 and 16 are formed at the end of the tubular portion on the external pipe side, and these face each other on an elliptical short axis that forms a transverse section of the tubular portion 11b.
- the tube expansion processing can be simply and quickly performed by bending the projecting surfaces 15 and 16 outward.
- the step part 19 is provided in the cylindrical outer surface of the cylindrical part 11b.
- FIG. 5 illustrates a fitting process between the joint member 12 and the cap member 11.
- the heat exchanger and the manufacturing method thereof according to the present invention can be applied to various heat transfer tube laminated heat exchangers.
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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
Description
図1は、本発明の一実施態様に係るヒーターコア1を示す斜視図である。ヒーターコア1には、入口側の外部配管2を介して熱媒体が導入される入口タンク3と、入口タンク3から熱媒体が移送されて熱交換を行う複数の積層された伝熱チューブ4と、伝熱チューブ4からの熱媒体が回収される出口タンク5と、出口タンク5から熱媒体が排出される出口側の外部配管6が設けられ、隣接する伝熱チューブ4の間には、図示されない熱交換用のフィン(アウターフィン)が設けられている。外部配管2と入口タンク3との接続部分、および外部配管6と出口タンク5との接続部分には、それぞれ配管接続部7、8が設けられている。配管接続部7、8の流路方向の長さが非常に短く形成されており、従って、ヒーターコア1の側面から外部配管2、6の屈曲部までの距離Lは短く設定されている。このようなヒーターコア1は、近年の装置小型化の要請に沿うものである。
2、6 外部配管
3 入口タンク
4 伝熱チューブ
5 出口タンク
7、8 配管接続部
10 座板部材
11 キャップ部材
11a 平面部
11b 筒状部
12 ジョイント部材
12a 嵌合穴
12b 段差面
13 カバー部材
13a 係合穴
13b 係合溝
14、17、18 係合爪
15、16 突起面
19 段差部
L ヒーターコア側面からの距離
Claims (15)
- 外部配管を介して熱媒体が移送される開口側に設けられたタンクの外部配管側の端面に、外部配管側のタンク端面を形成する平面部と該平面部から立設された筒状部とを備えたキャップ部材と、前記筒状部に対し嵌合可能な嵌合穴と外部配管が当接される配管当接部とを備えたジョイント部材とからなる配管接続部が設けられていることを特徴とする熱交換器。
- 一の外部配管を介して熱媒体が送入される入口側に設けられた入口タンクと、他の外部配管を介して前記熱媒体が送出される出口側に設けられた出口タンクと、前記入口タンクと前記出口タンクとを連通する伝熱チューブとから構成され、前記入口タンクおよび前記出口タンクの少なくとも一方のタンクの外部配管側の端面に、外部配管側のタンク端面を形成する平面部と該平面部から立設された筒状部とを備えたキャップ部材と、前記筒状部に対し嵌合可能な嵌合穴と外部配管が当接される配管当接部とを備えたジョイント部材とからなる配管接続部が設けられている、請求項1に記載の熱交換器。
- 前記キャップ部材が、前記入口タンクまたは前記出口タンクの外形よりもタンク内側に設けられている、請求項2に記載の熱交換器。
- 前記筒状部の横断面および前記嵌合穴が、略長円形状に形成されている、請求項1~3のいずれかに記載の熱交換器。
- 前記筒状部の前記外部配管側の端部には、横断面の短軸上で対向するように、それぞれ第一および第二の突起面が形成されている、請求項4に記載の熱交換器。
- 前記筒状部が、前記嵌合穴に嵌入された状態で拡開されている、請求項1~5のいずれかに記載の熱交換器。
- 前記筒状部の外側面側に、前記ジョイント部材のタンク側の端面と当接可能な段差部が形成されている、請求項1~6のいずれかに記載の熱交換器。
- 前記平面部には、前記タンクを形成するタンク部材に形成された係合穴と係合可能な係合爪が設けられている、請求項1~7のいずれかに記載の熱交換器。
- 一の外部配管を介して前記熱媒体が送入される入口側に設けられた入口タンクと、他の外部配管を介して前記熱媒体が送出される出口側に設けられた出口タンクと、前記入口タンクと前記出口タンクとを連通する伝熱チューブとから構成され、前記入口タンクに設けられる前記配管接続部のキャップ部材の係合爪が、前記出口タンクに設けられる前記配管接続部のキャップ部材の係合爪とは異なる部位に形成されている、請求項8に記載の熱交換器。
- 熱媒体が移送される開口側のタンクの端面に、外部配管が当接される配管当接部と嵌合穴とを備えたジョイント部材と、筒状部と平面部とを備えたキャップ部材とを介して前記外部配管を接続する熱交換器の製造方法であって、前記嵌合穴を前記筒状部に嵌合させた後に、伝熱チューブと連通するタンクを形成するタンク部材と前記平面部とを接合することにより、前記タンクと前記外部配管とを接続する配管接続部を形成することを特徴とする熱交換器の製造方法。
- 前記タンクが、熱媒体の入口側に設けられた入口タンクまたは前記熱媒体の出口側に設けられた出口タンクである、請求項10に記載の熱交換器の製造方法。
- 前記筒状部を、前記嵌合穴に嵌入した後に拡開する、請求項10または11に記載の熱交換器の製造方法。
- 前記筒状部の外部配管側の端部に形成された突起面を前記嵌合穴の径方向外側に向けて折り曲げることにより前記筒状部を拡開する、請求項12に記載の熱交換器の製造方法。
- 前記ジョイント部材を、前記筒状部の外側面側に設けられた段差部に当接させる、請求項10~13のいずれかに記載の熱交換器の製造方法。
- 前記平面部に設けられた係合爪を前記タンク部材に形成された係合穴と係合させた後に、前記タンク部材と前記平面部とを接合する、請求項10~14のいずれかに記載の熱交換器の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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CN201180014201.1A CN102792121B (zh) | 2010-03-17 | 2011-03-09 | 热交换器及其制造方法 |
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JP2010-060726 | 2010-03-17 | ||
JP2010060726A JP5419221B2 (ja) | 2010-03-17 | 2010-03-17 | 熱交換器およびその製造方法 |
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JP (1) | JP5419221B2 (ja) |
CN (1) | CN102792121B (ja) |
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JP6483409B2 (ja) * | 2013-12-26 | 2019-03-13 | カルソニックカンセイ株式会社 | 熱交換器 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0814702A (ja) * | 1994-06-27 | 1996-01-19 | Nippondenso Co Ltd | 積層型蒸発器 |
JPH0842989A (ja) * | 1994-07-28 | 1996-02-16 | Nippondenso Co Ltd | 熱交換器 |
JP2001215095A (ja) * | 1999-11-22 | 2001-08-10 | Denso Corp | 熱交換器 |
JP2005090946A (ja) * | 2003-08-08 | 2005-04-07 | Showa Denko Kk | 熱交換器およびエバポレータ |
-
2010
- 2010-03-17 JP JP2010060726A patent/JP5419221B2/ja active Active
-
2011
- 2011-03-09 CN CN201180014201.1A patent/CN102792121B/zh active Active
- 2011-03-09 WO PCT/JP2011/055450 patent/WO2011114952A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0814702A (ja) * | 1994-06-27 | 1996-01-19 | Nippondenso Co Ltd | 積層型蒸発器 |
JPH0842989A (ja) * | 1994-07-28 | 1996-02-16 | Nippondenso Co Ltd | 熱交換器 |
JP2001215095A (ja) * | 1999-11-22 | 2001-08-10 | Denso Corp | 熱交換器 |
JP2005090946A (ja) * | 2003-08-08 | 2005-04-07 | Showa Denko Kk | 熱交換器およびエバポレータ |
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Publication number | Publication date |
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JP5419221B2 (ja) | 2014-02-19 |
JP2011196570A (ja) | 2011-10-06 |
CN102792121A (zh) | 2012-11-21 |
CN102792121B (zh) | 2015-07-01 |
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