JP2016161136A - Flat tube and heat exchanger - Google Patents

Flat tube and heat exchanger Download PDF

Info

Publication number
JP2016161136A
JP2016161136A JP2015036823A JP2015036823A JP2016161136A JP 2016161136 A JP2016161136 A JP 2016161136A JP 2015036823 A JP2015036823 A JP 2015036823A JP 2015036823 A JP2015036823 A JP 2015036823A JP 2016161136 A JP2016161136 A JP 2016161136A
Authority
JP
Japan
Prior art keywords
flat
flat tube
hollow portion
fin
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.)
Granted
Application number
JP2015036823A
Other languages
Japanese (ja)
Other versions
JP6533070B2 (en
Inventor
史郎 藤島
Shiro Fujishima
史郎 藤島
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.)
T Rad Co Ltd
Original Assignee
T Rad Co Ltd
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 T Rad Co Ltd filed Critical T Rad Co Ltd
Priority to JP2015036823A priority Critical patent/JP6533070B2/en
Publication of JP2016161136A publication Critical patent/JP2016161136A/en
Application granted granted Critical
Publication of JP6533070B2 publication Critical patent/JP6533070B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • 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
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/06—Hollow fins; fins with internal circuits

Abstract

PROBLEM TO BE SOLVED: To provide a heat exchanger having a small number of component, and excellent in productivity, heat transfer performance and structural strength, and provide a flat tube using the heat exchanger.SOLUTION: Each flat tube 3 has a flat hollow part 1 of which a transverse section is flat, and a fin part 2 separating from each other in the width direction of the flat hollow part 1 and integrally projecting in the thickness direction of the flat hollow part 1 so as to become the same height. In the fin part, a hollow part is formed, and the fin hollow part and the flat hollow part 1 are integrally formed.SELECTED DRAWING: Figure 1

Description

本発明は、主として積層型熱交換器に用いる偏平チューブおよび、その熱交換器に関する。   The present invention relates to a flat tube mainly used for a laminated heat exchanger and a heat exchanger thereof.

通常のチューブ積層型熱交換器においては、その伝熱促進やチューブの外部流路形成のために別体のフィンが組み合わされている。
一例として、偏平チューブとコルゲートフィンとを交互に積層し、偏平チューブの両端をタンクのチューブ挿通孔に挿通し、その挿通部をろう付け固定するものである。そして、一方のタンクから各偏平チューブ内に第１流体を導き、他方のタンクからそれを流出する。そして、偏平チューブの外面及びコルゲートフィンに第２流体を流通させ、両流体間に熱交換を行うものである。 In a normal tube laminated heat exchanger, separate fins are combined to promote heat transfer and form an external flow path of the tube.
As an example, flat tubes and corrugated fins are alternately laminated, both ends of the flat tubes are inserted into the tube insertion holes of the tank, and the insertion portions are brazed and fixed. And a 1st fluid is guide | induced into each flat tube from one tank, and it flows out out of the other tank. And a 2nd fluid is distribute | circulated to the outer surface of a flat tube, and a corrugated fin, and heat exchange is performed between both fluids.

また、ヘッダーレスタイプの積層型熱交換器は、両端部が拡開された一対の溝型プレートを組み合わせて偏平チューブを形成する。そして、各偏平チューブをその拡開部において積層しコアを構成する。次いで、そのコアの両端にタンクを被嵌すると共に、コアの外周にケーシングを被嵌して、熱交換器とするものである。   In addition, the headerless type stacked heat exchanger forms a flat tube by combining a pair of groove-type plates whose both ends are widened. And each flat tube is laminated | stacked in the expansion part, and a core is comprised. Next, a tank is fitted on both ends of the core, and a casing is fitted on the outer periphery of the core to form a heat exchanger.

チューブとフィンとを交互に積層したタイプの熱交換器は、その部品点数が多く組立てが面倒であると共に、接合部が多くなり、ろう付の信頼性およびろう付部の伝熱性に欠ける欠点がある。
また、ヘッダーレスタイプの偏平チューブは、上下一対の溝形プレートを組み合わせて、エレメントを形成し、各エレメントの両端間をろう付け接合するものである。そのため、その組立てが面倒で且つろう付け部が多く、さらにろう付け不良が生じる可能性が高くなる。
そこで本発明は、フィン部分と中空部分とが一体で形成された偏平チューブを提供すると共に、それを積層してなる、製作性、伝熱性能および構造強度に優れた熱交換器を提供することを目的とする。 The type of heat exchanger in which tubes and fins are laminated alternately has many parts and is troublesome to assemble, and has many joints, which has the disadvantages of lack of brazing reliability and brazing heat transfer. is there.
In addition, the headerless type flat tube is formed by combining a pair of upper and lower groove-shaped plates to form elements and brazing and joining both ends of each element. Therefore, the assembly is troublesome and there are many brazing parts, and there is a high possibility that defective brazing will occur.
Accordingly, the present invention provides a flat tube in which a fin portion and a hollow portion are integrally formed, and also provides a heat exchanger excellent in manufacturability, heat transfer performance, and structural strength by laminating them. With the goal.

請求項１に記載の発明は、第１流体(14)が内部に流通する横断面が偏平な偏平中空部(1)と、その偏平中空部(1)の幅方向に互いに離間して、偏平中空部(1)の厚み方向へ同一高さに、一体に突設され、第２流体(15)が外部に流通する多数のフィン部(2)とを有する偏平チューブである。   According to the first aspect of the present invention, there is provided a flat hollow portion (1) having a flat cross section through which the first fluid (14) flows and a flat hollow portion (1) spaced apart from each other in the width direction of the flat hollow portion (1). It is a flat tube having a large number of fin portions (2) projecting integrally at the same height in the thickness direction of the hollow portion (1) and through which the second fluid (15) flows.

請求項２に記載の発明は、請求項１に記載の偏平チューブにおいて、
前記フィン部(2)を中空にして、そこにフィン中空部(2a)が形成され、そのフィン中空部(2a)と偏平中空部(1)とが一体に形成された偏平チューブである。
請求項３に記載の本発明は、請求項１または請求項２に記載の偏平チューブにおいて、
前記偏平中空部(1)の長手方向の両端部には、前記フィン部(2)が存在しない突出端部(3a)を有する偏平チューブである。 The invention according to claim 2 is the flat tube according to claim 1,
A flat tube in which the fin portion (2) is hollow, a fin hollow portion (2a) is formed therein, and the fin hollow portion (2a) and the flat hollow portion (1) are integrally formed.
According to a third aspect of the present invention, in the flat tube according to the first or second aspect,
A flat tube having protruding end portions (3a) where the fin portion (2) does not exist at both ends in the longitudinal direction of the flat hollow portion (1).

請求項４に記載の発明は、請求項１〜請求項３のいずれかに記載の偏平チューブにおいて、
前記偏平中空部(1)の幅方向の両端に位置するフィン部(2)の側壁面(2c)と、偏平中空部(1)の側壁面とが面一に形成された偏平チューブである。
請求項５に記載の発明は、請求項３に記載の偏平チューブにおいて、
前記突出端部(3a) が厚み方向に拡開された拡開偏平部(8)を有し、
前記拡開偏平部(8)とフィン部(2)との間に首部(3b)が設けられ、
前記拡開偏平部(8)の高さが前記フィン部(2)の高さと一致するように形成された偏平チューブである。 The invention according to claim 4 is the flat tube according to any one of claims 1 to 3,
A flat tube in which the side wall surface (2c) of the fin portion (2) located at both ends in the width direction of the flat hollow portion (1) and the side wall surface of the flat hollow portion (1) are formed flush with each other.
The invention according to claim 5 is the flat tube according to claim 3,
The protruding end (3a) has an expanded flat part (8) expanded in the thickness direction,
A neck portion (3b) is provided between the expanded flat portion (8) and the fin portion (2),
A flat tube formed such that the height of the expanded flat portion (8) coincides with the height of the fin portion (2).

請求項６に記載の発明は、請求項３に記載の偏平チューブを用いた熱交換器において、
複数の偏平チューブ(3)をその高さ方向に積層し、その接触部を互いにろう付してコア(4)が形成され、
各偏平チューブ(3)の両端の突出端部(3a)が、タンク(9)のヘッダープレート(6)の偏平孔(6a)に挿通されてろう付固定され、
前記各偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、前記各偏平チューブ(3)の外周に第２流体(15)が流通する熱交換器である。 Invention of Claim 6 is the heat exchanger using the flat tube of Claim 3,
A plurality of flat tubes (3) are stacked in the height direction, and the contact portions are brazed together to form the core (4),
The protruding ends (3a) at both ends of each flat tube (3) are inserted into the flat holes (6a) of the header plate (6) of the tank (9) and fixed by brazing.
In the heat exchanger, the first fluid (14) flows through the hollow portion of each flat tube (3), and the second fluid (15) flows through the outer periphery of each flat tube (3).

請求項７に記載の発明は、請求項４に記載の偏平チューブを用いた熱交換器において、
その偏平チューブ(3)は、偏平中空部(1)の幅方向の両端に位置するフィン部(2)の側壁面(2c)と、偏平中空部(1)の側壁面とが面一に形成されたものであって、
複数の偏平チューブ(3)をその高さ方向に積層し、その接触部を互いにろう付してコア(4)が形成され、
各偏平チューブ(6)の長手方向の両端の突出端部(3a)の一部が、タンク(9)のヘッダープレート(6)の偏平孔(6a)に挿通されてろう付固定され、
コア(4)の長手方向の両端部のみに、突出端部(3a)を覆い隠すようにケーシング(7)が被嵌され、
偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、偏平チューブ(3)の外周に第２流体(15)が流通する熱交換器である。 The invention described in claim 7 is a heat exchanger using the flat tube according to claim 4,
In the flat tube (3), the side wall surface (2c) of the fin portion (2) located at both ends in the width direction of the flat hollow portion (1) and the side wall surface of the flat hollow portion (1) are formed flush with each other. Which has been
A plurality of flat tubes (3) are stacked in the height direction, and the contact portions are brazed together to form the core (4),
A part of the protruding end (3a) at both ends in the longitudinal direction of each flat tube (6) is inserted into the flat hole (6a) of the header plate (6) of the tank (9) and fixed by brazing.
Only the both ends in the longitudinal direction of the core (4), the casing (7) is fitted so as to cover the protruding end (3a),
This is a heat exchanger in which the first fluid (14) flows in the hollow portion of the flat tube (3) and the second fluid (15) flows in the outer periphery of the flat tube (3).

請求項８に記載の発明は、請求項５に記載の偏平チューブを用いた熱交換器において、
複数の偏平チューブ(3)を積層して、ろう付接合することによりコア(4)が形成され、
コア(4)の外周にケーシング(7)が被嵌されると共に、そのケーシング(7)の両端には、ヘッダープレートを有しないタンク(9)が配置され、
各偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、各偏平チューブ(3)の外周に前記第２流体(15) が流通する熱交換器である。 The invention according to claim 8 is the heat exchanger using the flat tube according to claim 5,
By laminating a plurality of flat tubes (3) and brazing and joining, a core (4) is formed,
A casing (7) is fitted around the outer periphery of the core (4), and tanks (9) having no header plate are arranged at both ends of the casing (7),
In the heat exchanger, the first fluid (14) flows through the hollow portion of each flat tube (3), and the second fluid (15) flows through the outer periphery of each flat tube (3).

請求項１に記載の発明の偏平チューブ３は、内部に第１流体１４が流通する横断面が偏平な偏平中空部１と、その偏平中空部１の幅方向に互いに離間して、一体に突設されて外部に第２流体１５が流通する多数のフィン部２とを有する。
この偏平チューブによれば、第１流体１４が流通する中空部と、第２流体１５が流通するフィン部２の外周部とが一体に形成されているので、部品点数が少なく、部品接合に伴う熱抵抗や強度低下のない、製作性、伝熱性能および構造強度に優れたものとなる。 The flat tube 3 according to the first aspect of the present invention includes a flat hollow portion 1 having a flat cross section through which the first fluid 14 flows, and a flat hollow portion 1 spaced apart from each other in the width direction of the flat hollow portion 1 so as to protrude integrally. And a large number of fin portions 2 through which the second fluid 15 circulates.
According to this flat tube, since the hollow part through which the first fluid 14 circulates and the outer peripheral part of the fin part 2 through which the second fluid 15 circulates, the number of parts is small and the parts are joined. It is excellent in manufacturability, heat transfer performance and structural strength without thermal resistance or strength reduction.

上記構成において、請求項２に記載のように、フィン部２にフィン中空部2aを形成し、それと偏平中空部１とを一体にした場合には、第１流体１４との伝熱面積が大きくなり、伝熱が促進されるとともに、その流路断面積が増加し、流通抵抗は減少する。
上記構成において、請求項３に記載のように、偏平中空部の長手方向の両端部に、フィン部が存在しない突出端部３ａを設けた場合には、偏平チューブの端部外周を単純化して、偏平チューブと、タンク等の他の接続部材との連結を容易にすることができる。 In the above-described configuration, when the fin hollow portion 2a is formed in the fin portion 2 and the flat hollow portion 1 is integrated with the fin portion 2, the heat transfer area with the first fluid 14 is large. Thus, heat transfer is promoted, the cross-sectional area of the flow path is increased, and the flow resistance is decreased.
In the above configuration, as described in claim 3, when the protruding end portions 3a having no fin portions are provided at both ends in the longitudinal direction of the flat hollow portion, the outer periphery of the end portion of the flat tube is simplified. The flat tube and other connecting members such as a tank can be easily connected.

上記構成において、請求項４に記載のように、前記偏平中空部１の幅方向の両端に位置するフィン部２の側壁面２ｃと、偏平中空部１の側壁面とが面一に形成された場合には、当該側壁面は平面状の隔壁となるので、それによりケーシング７がなくとも幅方向の端部近傍まで第２流体１５の流路を確保することが可能になる。
上記構成において、請求項５に記載のように、突出端部３ａが厚み方向に拡開された拡開偏平部８を有し、その拡開偏平部８とフィン部２との間に首部３ｂが設けられ、拡開偏平部８の高さがフィン部２の高さと一致するように形成された場合には、その拡開偏平部８を介して偏平チューブ３同士を互いに接合し積層することにより、ヘッダープレートを要せずにタンク９を構成することが可能となる。 In the above configuration, as described in claim 4, the side wall surface 2 c of the fin portion 2 located at both ends in the width direction of the flat hollow portion 1 and the side wall surface of the flat hollow portion 1 are formed flush with each other. In this case, since the side wall surface becomes a flat partition wall, the flow path of the second fluid 15 can be secured up to the vicinity of the end portion in the width direction without the casing 7.
In the above configuration, as described in claim 5, the projecting end portion 3 a has the expanded flat portion 8 that is expanded in the thickness direction, and the neck portion 3 b is between the expanded flat portion 8 and the fin portion 2. And the flat tubes 3 are joined to each other via the widened flat portions 8 and laminated together when the wide flat portions 8 are formed so that the height of the wide flat portions 8 coincides with the height of the fin portions 2. Thus, the tank 9 can be configured without requiring a header plate.

請求項６に記載の熱交換器は、複数の偏平チューブ３を積層して、互いにろう付することでコア４を形成でき、その組立ておよび製造が容易である。また、偏平チューブ３の突出端部３ａにはフィン部２が存在しないので、突出端部３ａをヘッダープレート６の偏平孔６ａに挿通してろう付固定することが可能となる。   In the heat exchanger according to the sixth aspect, the core 4 can be formed by laminating a plurality of flat tubes 3 and brazing them together, and the assembly and manufacture thereof are easy. Further, since the fin portion 2 does not exist in the protruding end portion 3 a of the flat tube 3, the protruding end portion 3 a can be inserted into the flat hole 6 a of the header plate 6 and fixed by brazing.

請求項７に記載の熱交換器は、その偏平チューブが、偏平中空部１の幅方向の両端に位置するフィン部２の側壁面２ｃと、偏平中空部１の側壁面とが面一に形成されたものであって、コア４の長手方向両端の突出端部３ａのみをケーシング７で被嵌すれば十分なので、コア４の中間部のケーシング７を省略することが可能になる。   In the heat exchanger according to claim 7, the flat tube is formed so that the side wall surface 2c of the fin portion 2 located at both ends in the width direction of the flat hollow portion 1 and the side wall surface of the flat hollow portion 1 are flush with each other. In this case, it is sufficient to fit only the protruding end portions 3a at both ends in the longitudinal direction of the core 4 with the casing 7, so that the casing 7 in the middle portion of the core 4 can be omitted.

請求項８に記載の熱交換器は、端部に拡開偏平部８を有する複数の偏平チューブ３を積層してコア４が形成され、コアの外周にケーシング７が被嵌されると共に、そのケーシング７の両端には、ヘッダープレートを有しないタンク９が配置されたものである。
この熱交換器によれば、複数の偏平チューブ３を積層してろう付接合することで、コア４が形成されると共に、その両端にタンク部が形成され、部品点数が少なく、製造容易な熱交換器となる。 In the heat exchanger according to claim 8, a core 4 is formed by laminating a plurality of flat tubes 3 each having an expanded flat portion 8 at an end, and a casing 7 is fitted on the outer periphery of the core. A tank 9 having no header plate is arranged at both ends of the casing 7.
According to this heat exchanger, a plurality of flat tubes 3 are laminated and brazed to form the core 4 and the tank portions are formed at both ends thereof. It becomes an exchanger.

本発明の偏平チューブ３及び、その偏平チューブ３を用いた熱交換器の分解斜視図。FIG. 2 is an exploded perspective view of the flat tube 3 of the present invention and a heat exchanger using the flat tube 3. 同熱交換器の組立て状態を示す縦断面図。The longitudinal cross-sectional view which shows the assembly state of the same heat exchanger. 図２のIII−III矢視図。III-III arrow line view of FIG. 図２のIV−IV矢視図。The IV-IV arrow line view of FIG. 同偏平チューブ３及び、コア４の要部斜視図。The main part perspective view of the flat tube 3 and the core 4. FIG. 本発明の第２実施例の偏平チューブ３及びそれを用いた熱交換器の縦断面。The longitudinal section of the flat tube 3 of 2nd Example of this invention, and a heat exchanger using the same. 同要部斜視図。FIG. 同分解斜視図。The exploded perspective view. 本発明の第３実施例の偏平チューブ３及び、コア４の横断面図。The cross-sectional view of the flat tube 3 and the core 4 of 3rd Example of this invention. 同実施例の偏平チューブ３を用いた熱交換器の縦断面図。The longitudinal cross-sectional view of the heat exchanger using the flat tube 3 of the Example. 図１０のXI−XI矢視図。The XI-XI arrow line view of FIG. 本発明の第４実施例の偏平チューブ３及びコア４の横断面図。The cross-sectional view of the flat tube 3 and the core 4 of 4th Example of this invention.

次に、図面に基づいて本発明の実施の形態につき説明する。   Next, embodiments of the present invention will be described with reference to the drawings.

図１〜図５は、本発明の第１実施例の偏平チューブ３及び、それを用いた熱交換器である。
この偏平チューブ３は、図４及び図５に示す如く、横断面が偏平な偏平中空部１と、その偏平中空部１の幅方向に互いに離間して、その厚み方向に同一高さに一体に形成されたフィン部２とを有する。そのフィン部２は、内部が中空なフィン中空部２aに形成され、そのフィン中空部２aと偏平中空部１とが連続的に一体に形成されている。
また、偏平チューブ３の両端部には、図５に示す如く、フィン部２が突設されていない偏平な突出端部３aが存在する。そして、各フィン部２は全体として側面が台形に形成され、その両端に傾斜する斜面２bを有する。 FIGS. 1-5 is the flat tube 3 of 1st Example of this invention, and a heat exchanger using the same.
As shown in FIGS. 4 and 5, the flat tube 3 has a flat hollow portion 1 having a flat cross section and is spaced apart from each other in the width direction of the flat hollow portion 1 and is integrally formed at the same height in the thickness direction. And the formed fin portion 2. The fin part 2 is formed in a fin hollow part 2a having a hollow inside, and the fin hollow part 2a and the flat hollow part 1 are integrally formed continuously.
Further, at both ends of the flat tube 3, there are flat protruding end portions 3a where the fin portions 2 are not provided as shown in FIG. And each fin part 2 has the side surface formed in trapezoid as a whole, and has the slope 2b which inclines at the both ends.

〔偏平チューブの製造方法〕
(1) 一例として、金属板をプレス加工し、平面的に皿状に形成すると共に、その長手方向の両端部を除き、幅方向に互いに離間して並列した多数のフィン中空部２ａを形成する。次いで、その中心線の回りに金属板を折り返して、全体を偏平な筒状に形成する。そしてその端縁どうしを溶接または、ろう付接合する。
(2) また、偏平チューブは鋳造により、中空に形成してもよい。
(3) 或いは、単純な偏平チューブを上下一対のバルジ型に収納し、チューブの内部に加圧した液を供給し、液圧により多数のフィン中空部２ａが並列したフィン部を有する偏平チューブに加工する。
〔材質〕
偏平チューブは、金属材で形成することが好ましいが、樹脂、セラミックスでもよい。 [Manufacturing method of flat tube]
(1) As an example, a metal plate is pressed and formed into a flat plate shape, and a plurality of fin hollow portions 2a that are separated from each other in the width direction and are arranged in parallel are formed except for both ends in the longitudinal direction. . Next, the metal plate is folded around the center line to form a flat cylinder as a whole. Then, the edges are welded or brazed.
(2) The flat tube may be formed hollow by casting.
(3) Alternatively, a simple flat tube is housed in a pair of upper and lower bulge types, a pressurized liquid is supplied to the inside of the tube, and a flat tube having a fin portion in which a large number of fin hollow portions 2a are arranged in parallel by the hydraulic pressure. Process.
[Material]
The flat tube is preferably formed of a metal material, but may be a resin or a ceramic.

このようにしてなる偏平チューブ３により熱交換器を製造するには、図１，図２に示す如く、多数の偏平チューブ３を互いにその厚み方向に積層してコア４を形成する。
このコア４は、偏平チューブ３の平坦な面と、フィン部２とが互いに接触する。そして、各偏平チューブ３の突出端部３aがタンク９のヘッダープレート６の偏平孔６ａに挿通される。それと共に、コア４の外周にはケーシング７が被嵌される。この例では、ケーシング７はコア４の外周に整合する中間部と、その両端に配置されたマニホールド部１６とを有する。各マニホールド部１６には、パイプ１３が接続される。そして、この例では各タンク９に端蓋１１が取付けられると共に、その端蓋１１にパイプ１２が連通する。 In order to manufacture a heat exchanger with the flat tubes 3 formed as described above, as shown in FIGS. 1 and 2, a large number of flat tubes 3 are laminated in the thickness direction to form the core 4.
As for this core 4, the flat surface of the flat tube 3 and the fin part 2 contact mutually. The protruding end 3 a of each flat tube 3 is inserted into the flat hole 6 a of the header plate 6 of the tank 9. At the same time, a casing 7 is fitted on the outer periphery of the core 4. In this example, the casing 7 has an intermediate portion aligned with the outer periphery of the core 4 and manifold portions 16 disposed at both ends thereof. A pipe 13 is connected to each manifold portion 16. In this example, an end cover 11 is attached to each tank 9 and a pipe 12 communicates with the end cover 11.

このようにして組立てられた各部品は、互いにろう付けにより一体的に接合されて熱交換器を構成する。そして、この例では、一方のタンク９から図２の如く、第１流体１４が各偏平チューブ３に供給され、図３に示す如く、ケーシング７のマニホールド部１６から第２流体１５が各偏平チューブ３の外面間に供給される。このとき、第２流体１５は、各偏平チューブ３の一端部の突出端部３ａから供給され、他方の突出端部３ａから外部に導出される。そして、第２流体１５と第１流体１４との間に熱交換が行われるものである。
なお、この例では第１流体１４と第２流体１５は並行流であるが、それに変えて対向流とすることもできる。 The parts assembled in this way are joined together by brazing to constitute a heat exchanger. In this example, the first fluid 14 is supplied from one tank 9 to each flat tube 3 as shown in FIG. 2, and the second fluid 15 is supplied from the manifold portion 16 of the casing 7 to each flat tube as shown in FIG. 3 is supplied between the outer surfaces. At this time, the second fluid 15 is supplied from the protruding end 3a at one end of each flat tube 3, and is led out from the other protruding end 3a. Then, heat exchange is performed between the second fluid 15 and the first fluid 14.
In this example, the first fluid 14 and the second fluid 15 are in parallel flow, but can be changed to counterflow instead.

図６〜図８は、本発明の第２実施例の偏平チューブ３及びそれを用いた熱交換器である。
この熱交換器に用いられる偏平チューブ３は、その長手方向両端部に拡開偏平部８が形成された点で、第１実施例と異なる。即ち、偏平中空部１の両端のフィン部がない位置に首部３ｂを介して拡開偏平部８が設けられている。この拡開偏平部８の高さはフィン部２の高さと一致する。そして、各偏平チューブ３が図６，図７の如く積層されヘッダープレートレスタイプのコア４を構成する。 FIGS. 6-8 is the flat tube 3 of 2nd Example of this invention, and a heat exchanger using the same.
The flat tube 3 used in this heat exchanger is different from the first embodiment in that widened flat portions 8 are formed at both ends in the longitudinal direction. That is, the expanded flat part 8 is provided via the neck part 3b in the position where the fin part of the both ends of the flat hollow part 1 does not exist. The height of the expanded flat portion 8 coincides with the height of the fin portion 2. Each flat tube 3 is laminated as shown in FIGS. 6 and 7 to form a header plateless type core 4.

それにより、第１実施例では、図１において必要としたヘッダープレート６を、第２実施例では不要とする。そこで、図６の如くタンク９の開口端をコア４の両端部に被嵌すると共に、コア４の外周にケーシング７を被嵌して、熱交換器を完成できる。
このように構成することにより、部品点数が少なく且つ、ろう付け部分が少なくなり信頼性の高い熱交換器となる。 Thereby, in the first embodiment, the header plate 6 required in FIG. 1 is not required in the second embodiment. Therefore, the heat exchanger can be completed by fitting the opening end of the tank 9 to both ends of the core 4 and fitting the casing 7 to the outer periphery of the core 4 as shown in FIG.
By configuring in this way, the number of parts is small and the brazed portion is reduced, so that the heat exchanger is highly reliable.

次に、図９〜図１１は本発明の第３実施例の偏平チューブ３及びそれを用いた熱交換器である。
この偏平チューブ３の特徴は、その偏平中空部１の幅方向の両端部に面一に、最側端のフィン部２が突設されている点である。
図４及び図５の第１実施例では、その偏平チューブ３はそのフィン部２が偏平中空部１の幅方向側面には存在しなかった。
これに対して、図９の例では偏平中空部１の幅方向の側面にフィン部２が存在し、そのフィン部２の側壁面２ｃと偏平中空部１の側壁面とが面一に形成されている。 Next, FIGS. 9-11 is the flat tube 3 of 3rd Example of this invention, and a heat exchanger using the same.
A feature of the flat tube 3 is that the fin portion 2 at the outermost end protrudes flush with both ends of the flat hollow portion 1 in the width direction.
In the first embodiment of FIGS. 4 and 5, the flat tube 3 has no fin portion 2 on the side surface in the width direction of the flat hollow portion 1.
In contrast, in the example of FIG. 9, the fin portion 2 exists on the side surface in the width direction of the flat hollow portion 1, and the side wall surface 2 c of the fin portion 2 and the side wall surface of the flat hollow portion 1 are formed flush with each other. ing.

このようにすることにより、各偏平チューブ３を積層すると、その外周をケーシングの一部として利用することができる。即ち、図１０，図１１の如く、コア４の長手方向の両端部のみに一対のケーシング７を被嵌すればよく、中間部のケーシングを省略できる。それにより、特に長手方向の長いコア４のケーシング部品を短くできる。   By doing in this way, when each flat tube 3 is laminated | stacked, the outer periphery can be utilized as a part of casing. That is, as shown in FIGS. 10 and 11, the pair of casings 7 may be fitted only at both ends in the longitudinal direction of the core 4, and the intermediate casing can be omitted. Thereby, the casing part of the core 4 having a particularly long longitudinal direction can be shortened.

次に、図１２は偏平チューブ３の第４実施例及び、それを用いたコア４である。
この例では、偏平中空部１に突設された各フィン部２が、薄い板状に一体に形成されている。この例でも、偏平中空部１の幅方向の端部に位置するフィン部２の側壁面２ｃと、偏平中空部１の側端面とが面一に形成されている。
そのため、この例でも前記同様にケーシングの一部を省略することができる。 Next, FIG. 12 shows a fourth embodiment of the flat tube 3 and a core 4 using the same.
In this example, the fin portions 2 projecting from the flat hollow portion 1 are integrally formed in a thin plate shape. Also in this example, the side wall surface 2c of the fin portion 2 located at the end in the width direction of the flat hollow portion 1 and the side end surface of the flat hollow portion 1 are formed flush with each other.
Therefore, also in this example, a part of the casing can be omitted as described above.

〔変形例〕
上記実施例の各熱交換器は、積層方向に隣合う各偏平チューブどうしが、一方の平面と他方のフィン部とで向かい合わせに接合されていた。それに代えて、各偏平チューブの平面どうしを背中合わせに接合することもでき、また、各偏平チューブ３のフィン部２どうしを向き合わせて接合することもできる。
なお、フィン部２は偏平チューブ３の偏平面方向に曲線状でも可であり、また波状でも可である。 [Modification]
In each heat exchanger of the above embodiment, the flat tubes adjacent to each other in the stacking direction were joined to face each other at one plane and the other fin portion. Instead, the flat surfaces of the flat tubes can be joined back to back, and the fin portions 2 of the flat tubes 3 can be joined face to face.
The fin portion 2 may be curved in the direction of the flat surface of the flat tube 3 or may be wavy.

１ 偏平中空部
２ フィン部
２ａ フィン中空部
２ｂ 斜面
２ｃ 側壁面
３ 偏平チューブ
３ａ 突出端部
３ｂ 首部
４ コア DESCRIPTION OF SYMBOLS 1 Flat hollow part 2 Fin part 2a Fin hollow part 2b Slope 2c Side wall surface 3 Flat tube 3a Projection end part 3b Neck part 4 Core

６ ヘッダープレート
６ａ 偏平孔
７ ケーシング
８ 拡開偏平部
９ タンク
１１ 端蓋
１２ パイプ
１３ パイプ
１４ 第１流体
１５ 第２流体
１６ マニホールド部 6 Header plate 6a Flat hole 7 Casing 8 Expanded flat part 9 Tank 11 End cover 12 Pipe 13 Pipe 14 First fluid 15 Second fluid 16 Manifold part

Claims (8)

第１流体(14)が内部に流通する横断面が偏平な偏平中空部(1)と、その偏平中空部(1)の幅方向に互いに離間して、偏平中空部(1)の厚み方向へ同一高さに、一体に突設され、第２流体(15)が外部に流通する多数のフィン部(2)とを有する偏平チューブ。   The flat hollow portion (1) having a flat cross section through which the first fluid (14) flows is spaced apart from each other in the width direction of the flat hollow portion (1), and in the thickness direction of the flat hollow portion (1). A flat tube having a large number of fin portions (2) projecting integrally at the same height and through which the second fluid (15) flows. 請求項１に記載の偏平チューブにおいて、
前記フィン部(2)を中空にして、そこにフィン中空部(2a)が形成され、そのフィン中空部(2a)と偏平中空部(1)とが一体に形成された偏平チューブ。 In the flat tube of Claim 1,
A flat tube in which the fin portion (2) is hollow, a fin hollow portion (2a) is formed therein, and the fin hollow portion (2a) and the flat hollow portion (1) are integrally formed. 請求項１または請求項２に記載の偏平チューブにおいて、
前記偏平中空部(1)の長手方向の両端部には、前記フィン部(2)が存在しない突出端部(3a)を有する偏平チューブ。 The flat tube according to claim 1 or 2,
A flat tube having protruding end portions (3a) where the fin portion (2) does not exist at both ends in the longitudinal direction of the flat hollow portion (1). 請求項１〜請求項３のいずれかに記載の偏平チューブにおいて、
前記偏平中空部(1)の幅方向の両端に位置するフィン部(2)の側壁面(2c)と、偏平中空部(1)の側壁面とが面一に形成された偏平チューブ。 In the flat tube in any one of Claims 1-3,
A flat tube in which the side wall surface (2c) of the fin portion (2) located at both ends in the width direction of the flat hollow portion (1) and the side wall surface of the flat hollow portion (1) are formed flush with each other. 請求項３に記載の偏平チューブにおいて、
前記突出端部(3a) が厚み方向に拡開された拡開偏平部(8)を有し、
前記拡開偏平部(8)とフィン部(2)との間に首部(3b)が設けられ、
前記拡開偏平部(8)の高さが前記フィン部(2)の高さと一致するように形成された偏平チューブ。 The flat tube according to claim 3,
The protruding end (3a) has an expanded flat part (8) expanded in the thickness direction,
A neck portion (3b) is provided between the expanded flat portion (8) and the fin portion (2),
A flat tube formed such that the height of the expanded flat portion (8) coincides with the height of the fin portion (2). 請求項３に記載の偏平チューブを用いた熱交換器において、
複数の偏平チューブ(3)をその高さ方向に積層し、その接触部を互いにろう付してコア(4)が形成され、
各偏平チューブ(3)の両端の突出端部(3a)が、タンク(9)のヘッダープレート(6)の偏平孔(6a)に挿通されてろう付固定され、
前記各偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、前記各偏平チューブ(3)の外周に第２流体(15)が流通する熱交換器。 In the heat exchanger using the flat tube according to claim 3,
A plurality of flat tubes (3) are stacked in the height direction, and the contact portions are brazed together to form the core (4),
The protruding ends (3a) at both ends of each flat tube (3) are inserted into the flat holes (6a) of the header plate (6) of the tank (9) and fixed by brazing.
A heat exchanger in which a first fluid (14) flows in a hollow portion of each flat tube (3) and a second fluid (15) flows in an outer periphery of each flat tube (3). 請求項４に記載の偏平チューブを用いた熱交換器において、
その偏平チューブ(3)は、偏平中空部(1)の幅方向の両端に位置するフィン部(2)の側壁面(2c)と、偏平中空部(1)の側壁面とが面一に形成されたものであって、
複数の偏平チューブ(3)をその高さ方向に積層し、その接触部を互いにろう付してコア(4)が形成され、
各偏平チューブ(6)の長手方向の両端の突出端部(3a)の一部が、タンク(9)のヘッダープレート(6)の偏平孔(6a)に挿通されてろう付固定され、
コア(4)の長手方向の両端部のみに、突出端部(3a)を覆い隠すようにケーシング(7)が被嵌され、
偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、偏平チューブ(3)の外周に第２流体(15)が流通する熱交換器。 In the heat exchanger using the flat tube according to claim 4,
In the flat tube (3), the side wall surface (2c) of the fin portion (2) located at both ends in the width direction of the flat hollow portion (1) and the side wall surface of the flat hollow portion (1) are formed flush with each other. Which has been
A plurality of flat tubes (3) are stacked in the height direction, and the contact portions are brazed together to form the core (4),
A part of the protruding end (3a) at both ends in the longitudinal direction of each flat tube (6) is inserted into the flat hole (6a) of the header plate (6) of the tank (9) and fixed by brazing.
Only the both ends in the longitudinal direction of the core (4), the casing (7) is fitted so as to cover the protruding end (3a),
A heat exchanger in which the first fluid (14) flows in the hollow portion of the flat tube (3) and the second fluid (15) flows in the outer periphery of the flat tube (3). 請求項５に記載の偏平チューブを用いた熱交換器において、
複数の偏平チューブ(3)を積層して、ろう付接合することによりコア(4)が形成され、
コア(4)の外周にケーシング(7)が被嵌されると共に、そのケーシング(7)の両端には、ヘッダープレートを有しないタンク(9)が配置され、
各偏平チューブ(3)の中空部内に第１流体(14)が流通すると共に、各偏平チューブ(3)の外周に前記第２流体(15) が流通する熱交換器。 In the heat exchanger using the flat tube according to claim 5,
By laminating a plurality of flat tubes (3) and brazing and joining, a core (4) is formed,
A casing (7) is fitted around the outer periphery of the core (4), and tanks (9) having no header plate are arranged at both ends of the casing (7),
A heat exchanger in which the first fluid (14) flows in the hollow portion of each flat tube (3) and the second fluid (15) flows in the outer periphery of each flat tube (3).
JP2015036823A 2015-02-26 2015-02-26 Flat tube and heat exchanger Active JP6533070B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015036823A JP6533070B2 (en) 2015-02-26 2015-02-26 Flat tube and heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015036823A JP6533070B2 (en) 2015-02-26 2015-02-26 Flat tube and heat exchanger

Publications (2)

Publication Number Publication Date
JP2016161136A true JP2016161136A (en) 2016-09-05
JP6533070B2 JP6533070B2 (en) 2019-06-19

Family

ID=56844640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015036823A Active JP6533070B2 (en) 2015-02-26 2015-02-26 Flat tube and heat exchanger

Country Status (1)

Country Link
JP (1) JP6533070B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016193278A (en) * 2011-04-15 2016-11-17 フィッシャー アンド ペイケル ヘルスケア リミテッド Interface comprising rolling nasal bridge portion
CN107120871A (en) * 2017-07-04 2017-09-01 浙江银轮机械股份有限公司 Air-conditioning equipment liquid cool-heat-exchanger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152397A (en) * 1979-05-18 1980-11-27 Hitachi Ltd Plate type heat exchanger
JPS5766375U (en) * 1980-10-01 1982-04-20
JPH07504264A (en) * 1992-02-28 1995-05-11 メラネシア・インターナショナル・トラスト・カンパニー・リミテッド heat exchanger assembly
JP2003294382A (en) * 2002-04-04 2003-10-15 Toyo Radiator Co Ltd Heat exchanger
JP2006284004A (en) * 2005-03-31 2006-10-19 T Rad Co Ltd Condenser
JP2011163642A (en) * 2010-02-09 2011-08-25 T Rad Co Ltd Flat tube for heat exchanger without header plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152397A (en) * 1979-05-18 1980-11-27 Hitachi Ltd Plate type heat exchanger
JPS5766375U (en) * 1980-10-01 1982-04-20
JPH07504264A (en) * 1992-02-28 1995-05-11 メラネシア・インターナショナル・トラスト・カンパニー・リミテッド heat exchanger assembly
JP2003294382A (en) * 2002-04-04 2003-10-15 Toyo Radiator Co Ltd Heat exchanger
JP2006284004A (en) * 2005-03-31 2006-10-19 T Rad Co Ltd Condenser
JP2011163642A (en) * 2010-02-09 2011-08-25 T Rad Co Ltd Flat tube for heat exchanger without header plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016193278A (en) * 2011-04-15 2016-11-17 フィッシャー アンド ペイケル ヘルスケア リミテッド Interface comprising rolling nasal bridge portion
CN107120871A (en) * 2017-07-04 2017-09-01 浙江银轮机械股份有限公司 Air-conditioning equipment liquid cool-heat-exchanger
CN107120871B (en) * 2017-07-04 2023-04-07 浙江银轮机械股份有限公司 Liquid cooling heat exchanger for air conditioner

Also Published As

Publication number Publication date
JP6533070B2 (en) 2019-06-19

Similar Documents

Publication Publication Date Title
JP6567097B2 (en) Plate heat exchanger and heat pump heating / hot water system equipped with the same
JP6504367B2 (en) Heat exchanger
JP6528283B2 (en) Heat exchanger
CA2902679A1 (en) Plate heat exchanger and method for constructing multiple passes in the plate heat exchanger
JP2016161136A (en) Flat tube and heat exchanger
JP2009103360A (en) Plate laminated heat exchanger
JP2019002609A5 (en)
JP5005356B2 (en) Helicon type liquid cooling heat sink
JP6341530B2 (en) Multi-tube heat exchanger
JP2012159211A (en) Heat exchanger
JP5226342B2 (en) Cold storage / heat storage type heat exchanger
WO2021066083A1 (en) Plate for stack-type heat exchanger
KR102634169B1 (en) Stacked plate type heat exchanger
JP2019190796A (en) Tank structure of composite heat exchanger
JP6310306B2 (en) Heat exchanger and heat exchanger manufacturing method
JP2016183833A (en) Header plate-less heat exchanger
KR101011141B1 (en) Plate for Laminated Heater Core
JP5883763B2 (en) Plate heat exchanger
JP2006132802A (en) Header tank for heat exchanger
KR101081968B1 (en) Heat exchanger
JP5026100B2 (en) Heat exchanger
JP2015218936A (en) Heat exchanger
JP2010085024A (en) Heat exchanger
KR102605805B1 (en) Laminated type heat exchanger
JPH06159969A (en) Laminate type condenser

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180111

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20181026

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20181106

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181228

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190521

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190523

R150 Certificate of patent or registration of utility model

Ref document number: 6533070

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150