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JP7086953B2 - Heat exchanger - Google Patents
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JP7086953B2 - Heat exchanger - Google Patents

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JP7086953B2
JP7086953B2 JP2019525594A JP2019525594A JP7086953B2 JP 7086953 B2 JP7086953 B2 JP 7086953B2 JP 2019525594 A JP2019525594 A JP 2019525594A JP 2019525594 A JP2019525594 A JP 2019525594A JP 7086953 B2 JP7086953 B2 JP 7086953B2
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baffle plate
cross
flat
heat exchanger
casing
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JPWO2018230741A1 (en
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悦生 山本
直哉 瀬戸丸
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T Rad Co Ltd
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T Rad Co Ltd
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    • 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
    • F28D7/10—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 one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements 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

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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)

Description

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 thereof. More specifically, the present invention relates to a device that smoothly guides cooling water through a baffle plate on the outer surface side of a flat tube.

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）。In the tube support structure of the heat exchanger for EGR cooler described in Patent Document 1 below, flat tubes are arranged in parallel to form a core, cooling water is circulated on the outer surface side of the flat tubes, and the temperature is high on the inner surface side of the tubes. Distribute the exhaust gas from. Then, a baffle plate is appropriately arranged on the outer surface side of the tube to guide the cooling water to flow between the flat tubes.
Further, as an EGR cooler using a baffle plate, those shown in FIGS. 8 and 9 have been proposed.
That is, a plurality of flat tubes 1a are arranged in parallel, and both ends thereof are inserted into the tube plate 14a to form the core 2a. Then, the casing 3c is fitted on the outer periphery of the core 2a, a pair of inlets 4a and outlets 5a are arranged on the casing 3c so as to be separated from each other, and a baffle plate 6a is arranged between the inlets 4a and the outlets 5a. Then, the cooling water 12a is 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Japanese Unexamined Patent Publication No. 2008-196319

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 an experiment, when the baffle plate 6a is inserted between the flat tubes 1a of each core 2a, the baffle plate 6a has a drawback that it is easily deformed.
Further, as shown in FIG. 8, a retention portion 19a in which the cooling water 12a stays is formed on the downstream side of the baffle plate 6a, and there is a drawback that it is difficult to uniformly flow over the entire surface of the flat tube 1a.
Therefore, it is an object of the present invention to provide a baffle plate that is easy to attach and is not easily deformed at the time of attachment as a result of various experiments 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 the casing 3 has an inlet 4 and an outlet for cooling water 12. In a heat exchanger in which 5 and 5 are arranged apart from each other, cooling water 12 is supplied to the outer surface side of each flat tube 1 via a baffle plate 6, and gas 13 is supplied to the inside of the flat tube 1.
The baffle plate 6 is made of a leaf spring material, is arranged between the inlet 4 and the outlet 5, is connected to the inner surface of the casing 3, and has a base portion 8 having a locking portion 7 at one end thereof.
A cross-linked portion 9 that is integrally extended from the other end of the base portion 8 via a folded portion 16 and inserted between the flat tubes 1 is provided, and the cross-linked portion 9 is curved and deformed toward the flat tube 1. The heat exchanger is characterized in that its end portion engages with the locking portion 7.
According to the second aspect of the present invention, the cross-linking portion 9 of the baffle plate 6 has a slit-shaped opening 18 in the plane of the leaf spring, and at least a pair is formed on both sides of the opening 18 in the width direction. The heat exchanger according to claim 1, wherein the heat exchanger is connected by edge 20s located at both ends of the opening 18 and the engaging portion 17 at the end engages the locking portion 7. Is.
In the present invention according to claim 3, the base 8 is arranged 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, and each flat tube 1 is connected. The heat exchanger according to claim 1 or 2, wherein the cross-linking portions 9 are arranged in parallel by the number of spaces between them, and each of the cross-linking portions 9 is 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 is connected to the inner surface of the casing 3, and the cross-linked portion 9 thereof is connected to the flat tube 1. It is curved and deformed to the side, inserted between the flat tubes 1, and its end portion engages with the locking portion 7. Therefore, the baffle plate 6 can be easily attached, and the cooling water 12 can be guided from the inlet 4 to the outlet 5 around the bridge portion 9 to smoothly exchange heat. That is, by deforming the crosslinked portion 9 and engaging the end portion with the locking portion 7, the cooling water 12 is smoothly guided and heat exchange is promoted. In addition, the deformed state is maintained and heat exchange is stably performed.
In the invention according to claim 2, a slit-shaped opening 18 is formed in a plane of a leaf spring, and at least a pair of cross-linking portions 9 are formed on both sides in the width direction thereof, and are located at both ends of the opening 18. It is connected by an end edge (20), and the engaging portion (17) at the end thereof engages with the locking portion 7. Therefore, the rigidity of the crosslinked portion 9 is increased, deformation of the baffle plate can be prevented, and the cooling water can be stably guided.
According to the third aspect of the present invention, in the above configuration, as many cross-linking portions 9 are arranged in parallel between the flat tubes 1 and the cross-linking 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, and heat exchange can be promoted.

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 the baffle plate 6 used in the heat exchanger of the present invention, and shows a state before mounting.
FIG. 2 is a schematic view showing a state in which the baffle plate 6 is attached between the flat tubes 1.
3A and 3B are schematic views showing the mutual relationship between the baffle plate 6 and the flat tube 1, in which FIG. 3A shows a state before the core 2 is fitted to the casing 3, and FIG. 3B shows the state after the core 2 is fitted. Indicates the state.
FIG. 4 shows the mounting procedure of the baffle plate 6, (A) shows a state in which the cross-linked portion 9 of the baffle plate 6 is arranged in the gap of the core 2, and (B) shows the cross-linked portion 9 engaged with the baffle plate 6. A state in which the cross-linking portion 9 is inserted between the flat tubes by being locked to the stop portion 7 is shown, and (C) is a perspective view thereof.
FIG. 5 is a plan view showing the operation of the baffle plate 6.
FIG. 6 is a vertical sectional view of the same.
FIG. 7 is an explanatory view 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 retention portion 19a when the conventional baffle plate 6a is used.
FIG. 9 is an explanatory view of mounting 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, an embodiment of the present invention will be described with reference to the drawings.
1 and 2 are baffle plates 6 attached to the heat exchanger of the present invention, and are perspective views before the attachment. FIG. 1 shows the free state, and FIG. 2 is an explanatory diagram 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-shaped leaf spring material and has a base portion 8 and a cross-linking portion 9. The base portion 8 has a locking portion 7 at one end and a pair of cross-linking portions 9 integrally extending at the other end via a folded portion 16. Then, in the free state, the cross-linking portion 9 is extended beyond the locking portion 7 to form an engaging portion 17 at the tip thereof. A flat slit-shaped opening 18 is formed between the pair of cross-linked portions 9. That is, a pair of cross-linking portions 9 are arranged on both sides of the opening 18 in the width direction. Further, each pair of cross-linking portions 9 are connected by edge edges 20 located at both ends of the opening portion 18.
Next, in the baffle plate 6, the pair of cross-linking portions 9 are curved by utilizing their elasticity as shown in FIG. 2, and the engaging portion 17 thereof is locked to the locking portion 7.
Next, this heat exchanger is arranged between the flat tubes as shown in FIGS. 3 to 6.
In the heat exchanger of this example, a plurality of flat tubes 1 are arranged in parallel, and both ends thereof are inserted into the tube insertion holes of the tube plate 14. Then, the casing 3 is fitted on the outer periphery of the core 2.
As shown in FIGS. 5 and 6, the casing 3 is composed of a casing main body 3a and a lid material 3b to which the upper end portion thereof is fitted. A large number of dimples 15 project on the plane of each flat tube 1, and in this example, the dimples 15 are in contact with each other as shown in FIG.
[Installation procedure of baffle plate 6]
Next, a procedure for attaching the baffle plate 6 of the present invention to the heat exchanger will be described.
First, as shown in FIGS. 3 (A) (B) and 4 (A), the base 8 of the baffle plate 6 is located between the inlet 4 and the outlet 5. At this time, the cross-linked portion 9 maintains a flat state, which faces the side surface of the core 2.
Next, as shown in FIG. 4B, the engaging portion 17 is moved to the folded-back portion 16 side to bend the pair of bridging portions 9, and the engaging portion 17 is locked to the locking portion 7 of the base 8. do. At this time, as shown in FIGS. 5 and 6, the pair of cross-linking portions 9 are curved by elastic deformation and inserted between the flat tubes 1.
Further, in FIG. 1, the edge 20s at both ends of the opening 18 are in contact with or adjacent to the outer periphery of each flat tube 1. Then, the lid material 3b is fitted in the upper part of the casing main body 3a of the casing 3 in FIG. 6, and the whole is assembled.
In this state, the whole is inserted into a high temperature furnace, and the brazing material coated or applied to the surface of each member is melted to complete the heat exchanger.
[Action]
In the heat exchanger made in this way, in FIG. 5, the cooling water 12 flows from the inlet 4 between the flat tubes 1 and is guided to the cross-linking portion 9 on the outer periphery of the baffle plate 6, which is guided by the flat tubes 1. It spreads on the plane of and is guided to the exit 5.
Further, in this example, the gas 13 made of high-temperature exhaust gas is guided from the left to the right in each flat tube 1. Then, heat exchange is performed between the cooling water 12 and the gas 13.
At this time, the cross-linked portion 9 of the baffle plate 6 is inserted into one end of the flat tube 1 in the width direction. As a result, it is prevented that a retention zone is generated over the entire plane of the flat tube 1. That is, the conventional retention portion 19a shown in FIG. 8 is prevented from being generated on the downstream side 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1 Flat tube 1a Flat tube 2 Core 2a Core 3 Casing 3a Casing body 3b Lid material 3c Casing 4 Inlet 4a Inlet 5 Outlet 5a Outlet 6 Baffle plate 6a Baffle plate 7 Locking part 8 Base 9 Bridge part 10 One side gap 10a Gap 11 Gap on the other side 11a Gap on the other side 12 Cooling water 12a Cooling water 13 Gas 13a Gas 14 Tube plate 14a Tube plate 15 Dimple 16 Folded part 17 Engagement part 18 Opening 19a Retention part 20 End edge 21 End edge

Claims (3)

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). 4) and the outlet (5) are arranged apart from each other, cooling water (12) is supplied to the outer surface side of each flat tube (1) via a baffle plate (6), and the inside of the flat tube (1). In the heat exchanger to which the gas (13) is supplied to
The baffle plate (6) is made of a leaf spring material, is arranged between the inlet (4) and the outlet (5), is connected to the inner surface of the casing (3), and has a locking portion (one end). The base (8) having 7) and
A cross-linking portion (9) extending integrally from the other end of the base portion (8) via a folded-back portion (16) and inserted between the flat tubes (1) is provided, and the cross-linking portion (9) is provided. ) Is curved and deformed toward the flat tube (1), and the end portion thereof engages with the locking portion (7). 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 cross-linked portion (9) of the baffle plate (6) has a slit-shaped opening (18) in the plane of the leaf spring, and at least a pair is formed on both sides of the opening (18) in the width direction. 1. Heat exchanger described in. 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 portion (8) is arranged on one side of the flat tube (1) in the width direction, and the base portion (8) is connected to a flat surface on one side of the casing (3). The heat exchanger according to claim 1 or 2, wherein the cross-linking portions (9) are arranged in parallel by the number of spaces between them, and the cross-linking portions (9) are inserted between the flat tubes (1).
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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
JP2014194296A (en) 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd Multi-tube heat exchanger

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JP2014052086A (en) * 2012-09-05 2014-03-20 T Rad Co Ltd Header-plate-less heat exchanger

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* 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
JP2014194296A (en) 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd Multi-tube heat exchanger

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