WO2018230741A1 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
WO2018230741A1
WO2018230741A1 PCT/JP2018/023048 JP2018023048W WO2018230741A1 WO 2018230741 A1 WO2018230741 A1 WO 2018230741A1 JP 2018023048 W JP2018023048 W JP 2018023048W WO 2018230741 A1 WO2018230741 A1 WO 2018230741A1
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WIPO (PCT)
Prior art keywords
baffle plate
flat
flat tube
heat exchanger
casing
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PCT/JP2018/023048
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French (fr)
Japanese (ja)
Inventor
悦生 山本
直哉 瀬戸丸
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株式会社ティラド
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Priority to JP2019525594A priority Critical patent/JP7086953B2/en
Publication of WO2018230741A1 publication Critical patent/WO2018230741A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10Heat-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 one within the other, e.g. concentrically
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels

Abstract

Provided is a heat exchanger having a baffle plate 6, wherein attachment is easy, and cooling water can be circulated uniformly on the flat surface of a flat tube. A base part 8 of the baffle plate 6, which comprises a leaf spring member, is positioned between an inlet 4 and an outlet 5, a bridging part 9 thereof is curved toward the flat tube 1 and inserted into the flat tube 1, and the edge part of the bridging part 9 is caused to engage with a locking part 7.

Description

熱交換器Heat exchanger
 本発明は、偏平チューブが並列され、その外面側に冷却水が流通すると共に、内面側に気体が導かれる熱交換器である。より詳しくは偏平チューブの外面側にバッフルプレートを介して、冷却水を円滑に導くものに関する。 The present invention is a heat exchanger in which flat tubes are arranged in parallel, cooling water flows on the outer surface side thereof, and gas is guided to the inner surface side. More specifically, the present invention relates to a structure that smoothly guides cooling water to the outer surface side of a flat tube via a baffle plate.
 下記特許文献1に記載されたEGRクーラ用熱交換器のチューブ支持構造は、偏平チューブを並列してコアを形成し、偏平チューブの外面側に冷却水を流通させると共に、チューブの内面側に高温の排気ガスを流通させる。そして、チューブの外面側にはバッフルプレートを適宜配置して、各偏平チューブ間に冷却水の流通に導くものである。
 さらには、バッフルプレートを用いたEGRクーラとして、図8,図9に示すものが提案されている。
 即ち、複数の偏平チューブ1aが並列されると共に、その両端部がチューブプレート14aに挿通されてコア2aを構成する。そして、そのコア2aの外周にケーシング3cを被嵌し、ケーシング3cに互いに離間して一対の入口4aと出口5aを配置し、その入口4aと出口5aとの間にバッフルプレート6aを配置する。そして、冷却水12aを入口4aから出口5aに流通させるものである。このとき、バッフルプレート6aは冷却水12aが入口4aから出口5aにバイパスするのを防止する(図7~図9参照)。
The tube support structure of the heat exchanger for an EGR cooler described in Patent Document 1 below forms a core by arranging flat tubes in parallel, distributes cooling water to the outer surface side of the flat tube, and heats the inner surface side of the tube at a high temperature. Of exhaust gas. Then, a baffle plate is appropriately disposed on the outer surface side of the tube to guide the circulation of the cooling water between the flat tubes.
Furthermore, what is shown in FIG. 8, FIG. 9 is proposed as an EGR cooler using a baffle plate.
That is, a plurality of flat tubes 1a are arranged in parallel, and both ends thereof are inserted into the tube plate 14a to constitute the core 2a. Then, a casing 3c is fitted on the outer periphery of the core 2a, a pair of inlets 4a and outlets 5a are arranged apart from the casing 3c, and a baffle plate 6a is arranged between the inlets 4a and the outlets 5a. And the cooling water 12a is distribute | circulated from the inlet 4a to the outlet 5a. At this time, the baffle plate 6a prevents the cooling water 12a from bypassing from the inlet 4a to the outlet 5a (see FIGS. 7 to 9).
特開2008−196319号公報JP 2008-196319 A
 ところが、実験によればバッフルプレート6aを各コア2aの偏平チューブ1a間に挿入するとき、バッフルプレート6aが変形し易い欠点がある。
 さらには、図8に示す如く、バッフルプレート6aの下流側において冷却水12aが滞留する滞留部19aが形成され、偏平チューブ1aの全面に渡って均一に流れ難い欠点がある。
 そこで、本発明は各種実験の結果、取付け易く且つ装着時に変形し難いバッフルプレートであって、冷却水の流通を円滑に行い得るものを提供することを課題とする。
However, according to experiments, when the baffle plate 6a is inserted between the flat tubes 1a of the cores 2a, there is a drawback that the baffle plate 6a is easily deformed.
Further, as shown in FIG. 8, there is a disadvantage that a staying portion 19a in which the cooling water 12a stays is formed on the downstream side of the baffle plate 6a, and it is difficult to flow uniformly over the entire surface of the flat tube 1a.
Therefore, as a result of various experiments, it is an object of the present invention to provide a baffle plate that is easy to attach and difficult to be deformed at the time of attachment, and that can smoothly flow cooling water.
 請求項1に記載の本発明は、複数の偏平チューブ1が並列されたコア2と、コア2の外周に被嵌されたケーシング3とを有し、ケーシング3に冷却水12の入口4と出口5とが互いに離間して配置され、各偏平チューブ1の外面側にバッフルプレート6を介して冷却水12が供給され、偏平チューブ1の内部に気体13が供給される熱交換器において、
 前記バッフルプレート6は、板バネ材からなると共に、前記入口4と出口5との間に配置され、前記ケーシング3の内面に接続され、一端部に係止部7を有する基部8と、
 その基部8の他端部から折返部16を介して一体に延長されて、偏平チューブ1間に挿入される架橋部9と、を具備し、その架橋部9が偏平チューブ1側に湾曲変形されて、その端部が前記係止部7に係合することを特徴とする熱交換器である。
 請求項2に記載の本発明は、前記バッフルプレート6の架橋部9は、板バネの平面内にスリット状の開口部18を有し、その開口部18の幅方向の両側に少なくとも一対形成され、その開口部18の両端に位置する端縁20で連結されて、その端部の係合部17が前記係止部7に係合することを特徴とする請求項1に記載の熱交換器である。
 請求項3に記載の本発明は、前記偏平チューブ1の幅方向の一方側に、前記基部8が配置されると共に、その基部8がケーシング3の一方側の平面に接続され、各偏平チューブ1間の数だけ前記架橋部9が並列されて、その各架橋部9が各偏平チューブ1間に挿通された請求項1または請求項2に記載の熱交換器である。
The present invention according to claim 1 has a core 2 in which a plurality of flat tubes 1 are arranged in parallel, and a casing 3 fitted on the outer periphery of the core 2, and an inlet 4 and an outlet for cooling water 12 are provided in the casing 3. 5 are arranged apart from each other, the cooling water 12 is supplied to the outer surface side of each flat tube 1 via the baffle plate 6, and the gas 13 is supplied to the inside of the flat tube 1.
The baffle plate 6 is made of a leaf spring material, is disposed between the inlet 4 and the outlet 5, is connected to the inner surface of the casing 3, and has a base 8 having a locking portion 7 at one end,
A bridge portion 9 that is integrally extended from the other end portion of the base portion 8 via the folded portion 16 and is inserted between the flat tubes 1, and the bridge portion 9 is curved and deformed to the flat tube 1 side. Thus, the heat exchanger is characterized in that an end thereof engages with the locking portion 7.
According to a second aspect of the present invention, the bridging portions 9 of the baffle plate 6 have slit-like openings 18 in the plane of the leaf spring, and at least a pair of the openings 18 are formed on both sides in the width direction. 2. The heat exchanger according to claim 1, wherein the heat exchanger is connected with the edge 20 located at both ends of the opening portion 18, and the engaging portion 17 of the end portion engages with the locking portion 7. It is.
According to the third aspect of the present invention, the base 8 is disposed on one side of the flat tube 1 in the width direction, and the base 8 is connected to a flat surface on one side of the casing 3. 3. The heat exchanger according to claim 1, wherein the bridging portions 9 are arranged in parallel, and the bridging portions 9 are inserted between the flat tubes 1.
 本発明の熱交換器は、板バネ材からなるバッフルプレート6の基部8が、入口4と出口5との間に位置して、ケーシング3の内面に接続され、その架橋部9が偏平チューブ1側に湾曲変形されて、偏平チューブ1間に挿入され、その端部が係止部7に係合するものである。そのため、バッフルプレート6の装着が容易で、冷却水12を入口4から出口5に架橋部9の回りに案内して、熱交換を円滑に行うことができる。即ち、架橋部9を変形して、その端部を係止部7に係合することにより、冷却水12を円滑に導き、熱交換が促進される。また、その変形状態を保持して、安定的に熱交換が行われる。
 請求項2に記載の発明は、板バネの平面内にスリット状の開口部18が形成され、その幅方向の両側に少なくとも一対の架橋部9が形成され、その開口部18の両端に位置する端縁(20)で連結されて、その端部の係合部(17)が前記係止部7に係合するものである。そのため、架橋部9の剛性が強くなり、バッフルプレートの変形を防止して安定的に冷却水を案内することができる。
 請求項3に記載の発明は、上記構成において、各偏平チューブ1間の数だけ架橋部9が並列されて、その各架橋部9が各偏平チューブ1間に挿通されものである。そのため、各偏平チューブ間の冷却水12の流れを円滑に導き、熱交換を促進できる。
In the heat exchanger of the present invention, the base 8 of the baffle plate 6 made of a leaf spring material is located between the inlet 4 and the outlet 5 and connected to the inner surface of the casing 3, and its bridging portion 9 is a flat tube 1. It is curved and deformed to the side, inserted between the flat tubes 1, and its end engages with the locking portion 7. Therefore, the baffle plate 6 can be easily mounted, and the cooling water 12 can be guided from the inlet 4 to the outlet 5 around the bridging portion 9 to perform heat exchange smoothly. That is, by deforming the bridging portion 9 and engaging its end with the locking portion 7, the cooling water 12 is guided smoothly and heat exchange is promoted. In addition, heat exchange is stably performed while maintaining the deformation state.
According to the second aspect of the present invention, slit-like openings 18 are formed in the plane of the leaf spring, at least a pair of bridging portions 9 are formed on both sides in the width direction, and the openings 18 are located at both ends of the openings 18. Connected at the end edge (20), the engaging portion (17) at the end engages with the locking portion 7. Therefore, the rigidity of the bridging portion 9 is increased, and the deformation of the baffle plate can be prevented and the cooling water can be stably guided.
According to a third aspect of the present invention, in the above-described configuration, the bridge portions 9 are arranged in parallel by the number between the flat tubes 1, and the bridge portions 9 are inserted between the flat tubes 1. Therefore, the flow of the cooling water 12 between the flat tubes can be smoothly guided to promote heat exchange.
 図1は本発明の熱交換器に用いられるバッフルプレート6の斜視図であって、取付け前の状態を示す。
 図2は同バッフルプレート6であって、偏平チューブ1間に取付ける状態を示す略図。
 図3は同バッフルプレート6と偏平チューブ1との相互関係を示す略図であって、(A)はケーシング3にコア2を嵌着する前の状態を示し、(B)はその嵌着後の状態を示す。
 図4は同バッフルプレート6の取付け手順を示し、(A)はバッフルプレート6の架橋部9をコア2の隙間に配置した状態を示し、(B)はその架橋部9をバッフルプレート6の係止部7に係止して、架橋部9を各偏平チューブ間に挿入した状態を示し、(C)はその斜視図。
 図5は同バッフルプレート6の作用を示す平面図。
 図6は同縦断面図。
 図7はバッフルプレート6を使用しない場合の冷却水12aの流れを示す説明図。
 図8は従来型バッフルプレート6aを用いた場合の冷却水12aの流れ及び滞留部19aを示す説明図。
 図9は従来型バッフルプレート6aの取付け説明図。
FIG. 1 is a perspective view of a baffle plate 6 used in the heat exchanger of the present invention, showing a state before mounting.
FIG. 2 is a schematic view showing a state in which the baffle plate 6 is mounted between the flat tubes 1.
FIG. 3 is a schematic diagram showing the mutual relationship between the baffle plate 6 and the flat tube 1, wherein (A) shows a state before the core 2 is fitted to the casing 3, and (B) shows the state after the fitting. Indicates the state.
4A and 4B show a procedure for attaching the baffle plate 6. FIG. 4A shows a state where the bridging portion 9 of the baffle plate 6 is disposed in the gap of the core 2, and FIG. The state which latched to the stop part 7 and inserted the bridge | crosslinking part 9 between each flat tube is shown, (C) is the perspective view.
FIG. 5 is a plan view showing the operation of the baffle plate 6.
FIG. 6 is a longitudinal sectional view of the same.
FIG. 7 is an explanatory diagram showing the flow of the cooling water 12a when the baffle plate 6 is not used.
FIG. 8 is an explanatory view showing the flow of the cooling water 12a and the staying portion 19a when the conventional baffle plate 6a is used.
FIG. 9 is an explanatory view of attachment of the conventional baffle plate 6a.
 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。
 図1及び図2は本発明の熱交換器に取付けられるバッフルプレート6であって、その取付けの前の斜視図である。図1はその自由状態を示し、図2はバッフルプレート6を湾曲形成して各偏平チューブ1間に装着する説明図である。
 このバッフルプレート6は平板状の板バネ材からなり、基部8と架橋部9とを有する。基部8は一端に係止部7を有し、他端に折返部16を介して延長される一対の架橋部9を一体に有する。そして、自由状態で架橋部9が係止部7を越えて延長され、その先端に係合部17を形成する。一対の架橋部9の間には、偏平なスリット状の開口部18が形成されている。即ち、開口部18の幅方向の両側に一対の架橋部9が配置されている。また、開口部18の両端に位置する端縁20で、一対の各架橋部9が連結されている。
 次に、このバッフルプレート6は一対の架橋部9が図2の如く、その弾性を利用して湾曲され、その係合部17が係止部7に係止される。
 次に、この熱交換器は図3~図6に示す如く偏平チューブ間に配置される。
 この例の熱交換器は、複数の偏平チューブ1が並列され、夫々の両端部がチューブプレート14のチューブ挿通孔に挿通される。そして、コア2の外周にはケーシング3が被嵌される。
 そのケーシング3は、図5,図6に示す如く、ケーシング本体3aとその上端部を被嵌する蓋材3bとからなる。各偏平チューブ1の平面には、多数のディンプル15が突出し、この例ではそのディンプル15どうしが図6の如く接する。
〔バッフルプレート6の取付け手順〕
 次に、本発明のバッフルプレート6を熱交換器に取付ける手順について述べる。
 先ず、図3(A)(B),図4(A)に示す如く、バッフルプレート6の基部8を入口4と出口5との間に位置する。このとき、架橋部9は平面状態を維持して、それがコア2の側面に対向する。
 次いで、図4(B)に示す如く、係合部17を折返部16側に移動して、一対の架橋部9を湾曲させ、その係合部17を基部8の係止部7に係止する。このとき、一対の架橋部9は図5及び図6に示す如く、弾性変形により湾曲して各偏平チューブ1間に挿入される。
 また、図1において開口部18の両端の端縁20は、各偏平チューブ1の外周に接触又は隣接する。そして、ケーシング3のケーシング本体3aの上方には、図6において蓋材3bが被嵌され、全体が組み立てられる。
 係る状態で全体が高温の炉内に挿入され、各部材表面に被覆又は塗布されたろう材が溶融され、熱交換器を完成する。
〔作用〕
 このようにしてなる熱交換器は、図5において、入口4から冷却水12が各偏平チューブ1間に流入し、バッフルプレート6の外周の架橋部9に案内されて、それが各偏平チューブ1の平面上に広がり出口5に導かれる。
 また、この例では高温の排気ガスからなる気体13が各偏平チューブ1内を左方から右方に導かれる。そして、冷却水12と気体13との間に熱交換が行われるものである。
 このとき、バッフルプレート6の架橋部9は偏平チューブ1の幅方向の一端部に挿入される。それにより、偏平チューブ1の平面上の全域に渡り滞留域が生じるのを防止している。即ち、図8に示す、従来における滞留部19aがバッフルプレート6aの下流側に生じることを防止し、結果として熱交換を促進する。
Next, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are perspective views of the baffle plate 6 attached to the heat exchanger of the present invention before the attachment. FIG. 1 shows the free state, and FIG. 2 is an explanatory view in which the baffle plate 6 is curved and mounted between the flat tubes 1.
The baffle plate 6 is made of a flat plate spring material and has a base portion 8 and a bridging portion 9. The base portion 8 has a locking portion 7 at one end and a pair of bridging portions 9 that are extended via a folded portion 16 at the other end. And the bridge | crosslinking part 9 is extended beyond the latching | locking part 7 in a free state, and the engaging part 17 is formed in the front-end | tip. A flat slit-shaped opening 18 is formed between the pair of bridging portions 9. That is, the pair of bridging portions 9 are disposed on both sides of the opening 18 in the width direction. In addition, the pair of bridging portions 9 are connected at the edges 20 located at both ends of the opening 18.
Next, as shown in FIG. 2, the baffle plate 6 has a pair of bridging portions 9 that are bent using its elasticity, and the engaging portion 17 is locked to the locking portion 7.
Next, this heat exchanger is disposed between the flat tubes as shown in FIGS.
In the heat exchanger of this example, a plurality of flat tubes 1 are arranged in parallel, and both end portions thereof are inserted into the tube insertion holes of the tube plate 14. A casing 3 is fitted on the outer periphery of the core 2.
As shown in FIGS. 5 and 6, the casing 3 includes a casing body 3 a and a lid member 3 b that fits the upper end portion thereof. A large number of dimples 15 protrude from the flat surface of each flat tube 1, and in this example, the dimples 15 are in contact with each other as shown in FIG.
[Baffle plate 6 installation procedure]
Next, a procedure for attaching the baffle plate 6 of the present invention to a heat exchanger will be described.
First, as shown in FIGS. 3A and 3B and FIG. 4A, the base 8 of the baffle plate 6 is positioned between the inlet 4 and the outlet 5. At this time, the bridging portion 9 maintains a planar state, and it faces the side surface of the core 2.
Next, as shown in FIG. 4 (B), the engaging portion 17 is moved to the folding portion 16 side, the pair of bridging portions 9 are bent, and the engaging portion 17 is locked to the locking portion 7 of the base 8. To do. At this time, as shown in FIGS. 5 and 6, the pair of bridging portions 9 are bent by elastic deformation and inserted between the flat tubes 1.
Further, in FIG. 1, the end edges 20 at both ends of the opening 18 are in contact with or adjacent to the outer periphery of each flat tube 1. And the cover material 3b is fitted in FIG. 6 above the casing main body 3a of the casing 3, and the whole is assembled.
In this state, the whole is inserted into a high-temperature furnace, and the brazing material coated or applied on the surface of each member is melted to complete the heat exchanger.
[Action]
In the heat exchanger constructed as described above, in FIG. 5, the cooling water 12 flows from the inlet 4 between the flat tubes 1 and is guided to the bridging portions 9 on the outer periphery of the baffle plate 6. And is led to the outlet 5.
Further, in this example, a gas 13 made of high-temperature exhaust gas is guided from left to right in each flat tube 1. Then, heat exchange is performed between the cooling water 12 and the gas 13.
At this time, the bridging portion 9 of the baffle plate 6 is inserted into one end of the flat tube 1 in the width direction. Thereby, it is prevented that a residence area arises over the whole region on the plane of the flat tube 1. That is, the conventional staying portion 19a shown in FIG. 8 is prevented from occurring downstream of the baffle plate 6a, and as a result, heat exchange is promoted.
 1 偏平チューブ
 1a 偏平チューブ
 2 コア
 2a コア
 3 ケーシング
 3a ケーシング本体
 3b 蓋材
 3c ケーシング
 4 入口
 4a 入口
 5 出口
 5a 出口
 6 バッフルプレート
 6a バッフルプレート
 7 係止部
 8 基部
 9 架橋部
 10 一側隙間
 10a 一側隙間
 11 他側隙間
 11a 他側隙間
 12 冷却水
 12a 冷却水
 13 気体
 13a 気体
 14 チューブプレート
 14a チューブプレート
 15 ディンプル
 16 折返部
 17 係合部
 18 開口部
 19a 滞留部
 20 端縁
 21 端縁
DESCRIPTION OF SYMBOLS 1 Flat tube 1a Flat tube 2 Core 2a Core 3 Casing 3a Casing main body 3b Cover material 3c Casing 4 Inlet 4a Inlet 5 Outlet 5a Outlet 6 Baffle plate 6a Baffle plate 7 Locking part 8 Base part 9 Bridging part 10 One side clearance 10a Gap 11 Other side gap 11a Other side gap 12 Cooling water 12a Cooling water 13 Gas 13a Gas 14 Tube plate 14a Tube plate 15 Dimple 16 Turn-up portion 17 Engagement portion 18 Opening portion 19a Retention portion 20 Edge 21 Edge

Claims (3)

  1.  複数の偏平チューブ(1)が並列されたコア(2)と、コア(2)の外周に被嵌されたケーシング(3)とを有し、ケーシング(3)に冷却水(12)の入口(4)と出口(5)とが互いに離間して配置され、各偏平チューブ(1)の外面側にバッフルプレート(6)を介して冷却水(12)が供給され、偏平チューブ(1)の内部に気体(13)が供給される熱交換器において、
     前記バッフルプレート(6)は、板バネ材からなると共に、前記入口(4)と出口(5)との間に配置され、前記ケーシング(3)の内面に接続され、一端部に係止部(7)を有する基部(8)と、
     その基部(8)の他端部から折返部(16)を介して一体に延長されて、偏平チューブ(1)間に挿入される架橋部(9)と、を具備し、その架橋部(9)が偏平チューブ(1)側に湾曲変形されて、その端部が前記係止部(7)に係合することを特徴とする熱交換器。
    It has a core (2) in which a plurality of flat tubes (1) are arranged in parallel, and a casing (3) fitted on the outer periphery of the core (2). The casing (3) has an inlet for cooling water (12) ( 4) and the outlet (5) are spaced apart from each other, and cooling water (12) is supplied to the outer surface side of each flat tube (1) via the baffle plate (6), and the inside of the flat tube (1) In the heat exchanger in which the gas (13) is supplied to
    The baffle plate (6) is made of a leaf spring material, is disposed between the inlet (4) and the outlet (5), is connected to the inner surface of the casing (3), and has a locking part ( 7) a base (8) having
    A bridge portion (9) that is integrally extended from the other end portion of the base portion (8) via the folded portion (16) and is inserted between the flat tubes (1). ) Is bent and deformed toward the flat tube (1), and its end engages with the locking portion (7).
  2.  前記バッフルプレート(6)の架橋部(9)は、板バネの平面内にスリット状の開口部(18)を有し、その開口部(18)の幅方向の両側に少なくとも一対形成され、その開口部(18)の両端に位置する端縁(20)で連結されて、その端部の係合部(17)が前記係止部(7)に係合することを特徴とする請求項1に記載の熱交換器。 The bridging portion (9) of the baffle plate (6) has a slit-like opening (18) in the plane of the leaf spring, and at least one pair is formed on both sides in the width direction of the opening (18). It is connected by the edge (20) located in the both ends of an opening (18), The engaging part (17) of the edge part engages with the said latching | locking part (7). The heat exchanger as described in.
  3.  前記偏平チューブ(1)の幅方向の一方側に、前記基部(8)が配置されると共に、その基部(8)がケーシング(3)の一方側の平面に接続され、各偏平チューブ(1)間の数だけ前記架橋部(9)が並列されて、その各架橋部(9)が各偏平チューブ(1)間に挿通された請求項1または請求項2に記載の熱交換器。 The base (8) is disposed on one side in the width direction of the flat tube (1), and the base (8) is connected to a flat surface on one side of the casing (3), so that each flat tube (1) The heat exchanger according to claim 1 or 2, wherein the bridging portions (9) are arranged in parallel, and the bridging portions (9) are inserted between the flat tubes (1).
PCT/JP2018/023048 2017-06-12 2018-06-08 Heat exchanger WO2018230741A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177060A (en) * 2002-11-28 2004-06-24 Toyo Radiator Co Ltd Egr air-conditioner
JP2008196319A (en) * 2007-02-08 2008-08-28 Tokyo Radiator Mfg Co Ltd Tube support structure of heat exchanger for egr cooler
JP2014052086A (en) * 2012-09-05 2014-03-20 T Rad Co Ltd Header-plate-less heat exchanger
JP2014194296A (en) * 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd Multi-tube heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177060A (en) * 2002-11-28 2004-06-24 Toyo Radiator Co Ltd Egr air-conditioner
JP2008196319A (en) * 2007-02-08 2008-08-28 Tokyo Radiator Mfg Co Ltd Tube support structure of heat exchanger for egr cooler
JP2014052086A (en) * 2012-09-05 2014-03-20 T Rad Co Ltd Header-plate-less heat exchanger
JP2014194296A (en) * 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd Multi-tube heat exchanger

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