JP2016056969A - Pipe support structure of stacked heat exchanger - Google Patents

Pipe support structure of stacked heat exchanger Download PDF

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JP2016056969A
JP2016056969A JP2014181517A JP2014181517A JP2016056969A JP 2016056969 A JP2016056969 A JP 2016056969A JP 2014181517 A JP2014181517 A JP 2014181517A JP 2014181517 A JP2014181517 A JP 2014181517A JP 2016056969 A JP2016056969 A JP 2016056969A
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pipe
support structure
washer
heat exchanger
inlet
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JP6297455B2 (en
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和田　努
Tsutomu Wada
努 和田
周平 松坂
Shuhei Matsuzaka
周平 松坂
伴明 高木
Tomoaki Takagi
伴明 高木
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T Rad Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a support structure of a pipe which does not need a special part, is easy to be processed and assembled, and can rigidly support a pipe.SOLUTION: In a peripheral edge of a flat washer body 9, there is provided a washer 11 from which a pair of leg parts 10 integrally protrude. A flat face of the washer body 9 is connected by brazing to a hole edge of a through hole 7 of an edge plate 6. Then, an outer circumference of a horizontal portion 8b of an inlet/outlet pipe 8 is held by an end portion of a leg part 10. At a holding portion 10a, the inlet pipe 8 and the washer 11 are integrally fixed by brazing.SELECTED DRAWING: Figure 1

Description

本発明は、多数の皿状プレートを、定間隔に積層してコアを構成し、そのコアの端部に補強用としてそのパイプに加わる外力を確実に支持することができる積層型熱交換器のパイプ支持構造に関する。   The present invention provides a laminated heat exchanger that can stack a large number of plate-like plates at regular intervals to form a core, and can reliably support an external force applied to the pipe for reinforcement at the end of the core. It relates to a pipe support structure.

熱交換器のタンクにパイプを接続し、そのパイプとタンクとの間に補強プレートを配置した提案が下記特許文献１に記載されている。
これは、ヘッダ本体の内部空間を軸方向に仕切る仕切板にヘッダ本体の側面から突出する腕部を設け、その腕部の先端に形成した切欠きに接続用パイプを係止するものである。
このパイプの支持構造は、タンクに仕切板を突設したものであるが、それを積層型熱交換器の端板に取付けることも可能である。一例として、図７の如く、端板６に支持板１８を突設し、その上端に切欠きを設け、そこにパイプ８の水平部を支持することができる。 A proposal in which a pipe is connected to a tank of a heat exchanger and a reinforcing plate is disposed between the pipe and the tank is described in Patent Document 1 below.
This is provided with an arm portion protruding from the side surface of the header body on a partition plate that partitions the internal space of the header body in the axial direction, and the connection pipe is locked to a notch formed at the tip of the arm portion.
This pipe support structure has a partition plate protruding from a tank, but it can also be attached to an end plate of a laminated heat exchanger. As an example, as shown in FIG. 7, a support plate 18 protrudes from the end plate 6, a notch is provided at the upper end thereof, and the horizontal portion of the pipe 8 can be supported there.

特開平１０−１４１８８７号公報Japanese Patent Application Laid-Open No. 10-141887

従来のパイプの支持構造は、別個の支持板と、それを固定するための手段とを必要とし、その加工および組み立てが面倒で且つ、部品点数が多くなる欠点があった。
そこで、本発明は加工の容易な必要最小限の部品で、積層型熱交換器の出入口パイプを強固に支持できるパイプ支持構造を提供することを課題とする。 The conventional pipe support structure requires a separate support plate and a means for fixing it, and has a drawback in that it is troublesome to process and assemble and has a large number of parts.
Accordingly, an object of the present invention is to provide a pipe support structure that can firmly support an inlet / outlet pipe of a stacked heat exchanger with minimum necessary parts that can be easily processed.

請求項１に記載の本発明は、多数のプレート(1)(2)が積層されて、それら各プレート間に
第１の流体が流通する第１流路(3)と、第２の流体が流通する第２流路(4)とが交互に形成されてコア(5)を形成し、そのコア(5)の積層方向の端に端板(6)が配置され、その端板(6)の貫通孔(7)に、前記いずれかの流体の出入口パイプ(8)が挿通された積層型熱交換器のパイプ支持構造において、
平坦な座金本体(9)の周縁に一対の脚部(10)が一体に突出された座金(11)を有し、その座金本体(9)の平坦面が、前記貫通孔(7)の孔縁にろう付接続され、
前記出入口パイプ(8)は、少なくともその根元の軸線が垂直部(8a)と水平部(8b) とでＬ字状に曲折され、そのＬ字の水平部(8b)の外周が前記一対の脚部(10)の端部に設けられた抱持部(10a)で抱持され、その抱持部(10a)で出入口パイプ(8)と座金(11)とが一体にろう付されたことを特徴とする積層型熱交換器のパイプ支持構造である。 The present invention described in claim 1 includes a first flow path (3) in which a large number of plates (1) and (2) are stacked, and a first fluid flows between the plates, and a second fluid. The second flow path (4) that circulates is formed alternately to form the core (5), and the end plate (6) is disposed at the end of the core (5) in the stacking direction, and the end plate (6) In the pipe support structure of the stacked heat exchanger in which the fluid inlet / outlet pipe (8) is inserted into the through hole (7) of
A flat washer body (9) has a washer (11) with a pair of legs (10) protruding integrally around the periphery of the washer body (9), and the flat surface of the washer body (9) is a hole of the through hole (7). Brazed to the edge,
The inlet / outlet pipe (8) has at least a base axis bent in an L shape at a vertical portion (8a) and a horizontal portion (8b), and an outer periphery of the L-shaped horizontal portion (8b) is the pair of legs. It is held by the holding part (10a) provided at the end of the part (10), and the entrance pipe (8) and the washer (11) are brazed together at the holding part (10a). It is the pipe | tube support structure of the laminated heat exchanger characterized.

請求項２に記載の本発明は、請求項１に記載の積層型熱交換器のパイプ支持構造において、
前記一対の脚部(10)が座金本体(9)から斜めに延在されて、前記出入口パイプ(8)の水平部(8b)の外周を前記抱持部(10a)で被嵌して、出入口パイプ(8)を筋交い状に支持することを特徴とする積層型熱交換器のパイプ支持構造である。 According to a second aspect of the present invention, in the pipe support structure of the laminated heat exchanger according to the first aspect,
The pair of legs (10) extends obliquely from the washer body (9), and the outer periphery of the horizontal portion (8b) of the inlet / outlet pipe (8) is fitted with the holding portion (10a), The pipe support structure of the laminated heat exchanger is characterized in that the inlet / outlet pipe (8) is supported in a brace shape.

請求項３に記載の本発明は、請求項１に記載の積層型熱交換器のパイプ支持構造において、
前記出入口パイプ(8)の付根に環状の膨出部(14)が形成され、その膨出部(14)が前記座金本体(9)の平面に当接して、それらの間が互いにろう付された積層型熱交換器のパイプ支持構造である。 The present invention described in claim 3 is the pipe support structure of the laminated heat exchanger according to claim 1,
An annular bulging portion (14) is formed at the root of the inlet / outlet pipe (8), the bulging portion (14) abuts against the plane of the washer body (9), and they are brazed to each other. 1 is a pipe support structure of a laminated heat exchanger.

本発明の積層型熱交換器のパイプ支持構造は、端板６の貫通孔７の孔縁に座金本体９の平坦面がろう付接続され、座金11と一体の一対の脚部10の端部が、出入口パイプ８の水平部8bの外周を抱持して、その抱持部10aで出入口パイプ８と座金11とが一体にろう付されたものである。
従って、出入口パイプ８の水平部8bは、座金11と一体の一対の脚部10により支持され、出入口パイプ８に加わる加重を効果的に支持する。即ち、座金11はその平坦面で端板６にろう付固定され且つ、その一対の脚部10でも出入口パイプ８にろう付されているため、安定して出入口パイプ８を支持できる。
また、脚部10は座金11と一体であるため、組立て易く、部品点数が少なく、量産性に優れている。 In the pipe support structure of the laminated heat exchanger according to the present invention, the flat surface of the washer body 9 is brazed to the hole edge of the through-hole 7 of the end plate 6, and the end portions of the pair of legs 10 integrated with the washer 11. However, the outer periphery of the horizontal portion 8b of the entrance / exit pipe 8 is held, and the entrance / exit pipe 8 and the washer 11 are brazed together at the holding portion 10a.
Accordingly, the horizontal portion 8b of the entrance / exit pipe 8 is supported by a pair of legs 10 integral with the washer 11, and effectively supports the load applied to the entrance / exit pipe 8. That is, the washer 11 is brazed to the end plate 6 on its flat surface, and the pair of legs 10 is also brazed to the inlet / outlet pipe 8, so that the inlet / outlet pipe 8 can be stably supported.
Further, since the leg portion 10 is integrated with the washer 11, it is easy to assemble, has a small number of parts, and is excellent in mass productivity.

請求項２に記載の発明は、一対の脚部10が座金本体９から斜めに延在されて、前記出入口パイプ８の水平部8bの外周を前記抱持部13で被嵌して、出入口パイプ８を筋交い状に支持するものである。
この構造により、より強固に出入口パイプを支持することができる。 According to the second aspect of the present invention, a pair of leg portions 10 are obliquely extended from the washer body 9, and the outer periphery of the horizontal portion 8b of the entrance / exit pipe 8 is fitted by the holding portion 13 so that the entrance / exit pipe is fitted. 8 is supported in a brace shape.
With this structure, the entrance / exit pipe can be supported more firmly.

請求項３に記載の発明は、出入口パイプ８の付根に環状の膨出部14が形成され、その膨出部14が前記座金本体９の平面に当接して、それらの間が互いにろう付されたものである。
そのため、出入口パイプ８の付根が座金11に保持された状態で、さらにその脚部10により出入口パイプ８が支持されるため、より強固に出入口パイプを支持できる。 According to the third aspect of the present invention, an annular bulging portion 14 is formed at the root of the inlet / outlet pipe 8, and the bulging portion 14 abuts against the plane of the washer body 9 and is brazed to each other. It is a thing.
Therefore, in the state where the root of the entrance / exit pipe 8 is held by the washer 11, the entrance / exit pipe 8 is further supported by the leg portion 10, so that the entrance / exit pipe can be supported more firmly.

本発明の積層型熱交換器のパイプ支持構造の斜視図。The perspective view of the pipe support structure of the laminated heat exchanger of this invention. 同支持構造の要部斜視図。The principal part perspective view of the support structure. 図２のIII-III矢視断面図。III-III arrow sectional drawing of FIG. 同支持構造の側面図。The side view of the support structure. 同支持構造の組立て手順の一例を示す説明図。Explanatory drawing which shows an example of the assembly procedure of the support structure. 同支持構造の座金11の展開図。The developed view of the washer 11 of the support structure. 従来のパイプ支持構造を示す要部斜視図。The principal part perspective view which shows the conventional pipe support structure.

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。
この積層型熱交換器は、図１〜図３に示す如く、周縁が拡開する多数の皿状のプレート１、プレート２が交互に、その周縁部で積層されてコア５を構成する。そのコア５の内部は、図３に示す如く、各プレートの１枚おきに第１流体が流通する第１流路３と、第２流体が流通する第２流路４とが交互に配置される。
この例では、プレート２に多数のディンプル１７が突設され、そのプレート２は平坦に形成されている。第１流路３を形成するプレート２とプレート１の間にはインナーフィン１６が配置され、第２流路４にはディンプル１７が配置されている。コア５の積層方向の上端には、補強プレート１９を介して端板６が配置され、この例では、端板６の貫通孔７と第２流路４の連通孔とが連通する。 Next, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, this stacked heat exchanger forms a core 5 by laminating a large number of plate-like plates 1 and plates 2 whose peripheral edges are expanded alternately at the peripheral edges. In the core 5, as shown in FIG. 3, the first flow path 3 through which the first fluid circulates and the second flow path 4 through which the second fluid circulates alternately every other plate. The
In this example, a large number of dimples 17 project from the plate 2 and the plate 2 is formed flat. Inner fins 16 are disposed between the plate 2 and the plate 1 forming the first flow path 3, and dimples 17 are disposed in the second flow path 4. An end plate 6 is disposed on the upper end of the core 5 in the stacking direction via a reinforcing plate 19. In this example, the through hole 7 of the end plate 6 and the communication hole of the second flow path 4 communicate with each other.

なお、この例では図３に示すごとく、出入口パイプ８が第２流路４側に連通しているが、それに代えて、出入口パイプ８を第１流路３側に連通させてもよい。
一例として、第１流路３には第１流体として冷却水が、第２流路４には第２流体としてエンジンオイル等が流通され、それら各流体間に熱交換が行われる。 In this example, as shown in FIG. 3, the inlet / outlet pipe 8 communicates with the second flow path 4, but instead, the inlet / outlet pipe 8 may communicate with the first flow path 3.
As an example, cooling water is circulated as the first fluid in the first flow path 3, and engine oil or the like is circulated as the second fluid in the second flow path 4, and heat exchange is performed between these fluids.

出入口パイプ８は、この例では、端板６を貫通する垂直部８ａと、それから軸線がＬ字状に曲折された水平部８ｂとからなる。
座金１１を介し、出入口パイプ８の垂直部８ａの挿通部８ｃが貫通孔７に挿通される。なお、垂直部８ａの下端部の外周には膨出部１４が膨出されている。
座金１１は、図２に示す如く、座金本体９の外周に一対の脚部１０が一体的に形成されている。その脚部１０が設けられる位置は、出入口パイプ８が挿通される貫通孔７の中心よりも外側の位置である（図２、図３、図６参照）。それとともに、脚部１０は斜め方向に立設されて、出入口パイプ８の水平部８ｂ側に延在され、筋交い状に配置される。 In this example, the entrance / exit pipe 8 includes a vertical portion 8a penetrating the end plate 6 and a horizontal portion 8b whose axis is bent in an L shape.
The insertion portion 8 c of the vertical portion 8 a of the entrance / exit pipe 8 is inserted into the through hole 7 through the washer 11. A bulging portion 14 bulges on the outer periphery of the lower end portion of the vertical portion 8a.
As shown in FIG. 2, the washer 11 has a pair of legs 10 integrally formed on the outer periphery of the washer body 9. The position where the leg portion 10 is provided is a position outside the center of the through hole 7 through which the inlet / outlet pipe 8 is inserted (see FIGS. 2, 3, and 6). At the same time, the leg portion 10 is erected in an oblique direction, extends to the horizontal portion 8b side of the entrance / exit pipe 8, and is arranged in a brace.

図４、図５は座金１１の一対の脚部１０を出入口パイプ８の水平部８ｂの外周に抱持させる作業工程の一例を示すものである。この例では、座金本体９に図６に示す如く、展開状態で斜めに配置された一対の脚部１０を実線の状態から鎖線の状態に折り曲げ、その抱持部１０ａを出入口パイプ８の水平部８ｂの外周に抱持させる。その脚部１０の抱持部１０ａは断面円弧状に形成されており、その内面が出入口パイプ８の水平部８ｂの上部外周の形状に整合して被嵌するように形成されている。
この構造により、出入口パイプ８の膨出部１４が座金本体９の上面で固定されるとともに、出入口パイプ８の水平部８ｂが脚部１０の抱持部１０ａで固定され、図３に示すように、Ｌ字状の出入口パイプ８を筋交い状に支持することができる。 4 and 5 show an example of a work process for holding the pair of leg portions 10 of the washer 11 around the outer periphery of the horizontal portion 8b of the entrance / exit pipe 8. FIG. In this example, as shown in FIG. 6, a pair of leg portions 10 that are disposed obliquely in a deployed state are folded from a solid line state to a chain line state, and the holding portion 10 a is connected to the horizontal portion of the entrance / exit pipe 8. It is held around the outer periphery of 8b. The holding portion 10a of the leg portion 10 is formed in an arc shape in cross section, and the inner surface thereof is formed so as to be fitted in alignment with the shape of the upper outer periphery of the horizontal portion 8b of the entrance / exit pipe 8.
With this structure, the bulging portion 14 of the entrance / exit pipe 8 is fixed on the upper surface of the washer body 9, and the horizontal portion 8b of the entrance / exit pipe 8 is fixed by the holding portion 10a of the leg portion 10, as shown in FIG. The L-shaped inlet / outlet pipe 8 can be supported in a brace shape.

その組立ては、一例として出入口パイプ８に座金１１を取付けた状態で、出入口パイプ８の挿通部８ｃを端板６の貫通孔７に挿通する。そして、図１〜図３の如く、組立てられた状態で全体が一体的にろう付固定される。このとき、互いに接続される少なくとも一方側にはろう材が被覆又は塗布され、全体を組み立てた状態で、高温の炉内で各部品間が一体的にろう付固定される。
その結果、出入口パイプ８はその根元部の膨出部１４が座金１１を介して端板６に固定されるとともに、一対の脚部１０を介しその抱持部１０ａと出入口パイプ８の水平部８ｂとが一体的にろう付固定され、強固な支持構造を得ることができる。 As an example of the assembly, the insertion portion 8 c of the inlet / outlet pipe 8 is inserted into the through hole 7 of the end plate 6 with the washer 11 attached to the inlet / outlet pipe 8. Then, as shown in FIGS. 1 to 3, the whole is integrally brazed and fixed in an assembled state. At this time, a brazing material is coated or applied to at least one side connected to each other, and the parts are integrally brazed and fixed in a high-temperature furnace in a state where the whole is assembled.
As a result, the bulging portion 14 at the base of the entrance / exit pipe 8 is fixed to the end plate 6 via the washer 11, and the holding portion 10 a and the horizontal portion 8 b of the entrance / exit pipe 8 are connected via the pair of legs 10. Are integrally brazed and fixed, and a strong support structure can be obtained.

なお、ろう付工程前に、脚部１０の抱持部１０ａを仮固定するため、その抱持部１０ａを出入口パイプ８の水平部８ｂに予めカシメ固定してもよい。カシメることにより、抱持部１０ａが出入口パイプ８の外周により密着して固定されるため、ろう付後はより強固な支持構造となる。   In addition, in order to temporarily fix the holding portion 10a of the leg portion 10 before the brazing step, the holding portion 10a may be fixed in advance to the horizontal portion 8b of the entrance / exit pipe 8. By caulking, the holding portion 10a is fixed in close contact with the outer periphery of the entrance / exit pipe 8, so that the support structure becomes stronger after brazing.

１ プレート
２ プレート
３ 第１流路
４ 第２流路
５ コア
６ 端板
７ 貫通孔
８ 出入口パイプ
8a 垂直部
8b 水平部
8c 挿通部 DESCRIPTION OF SYMBOLS 1 Plate 2 Plate 3 1st flow path 4 2nd flow path 5 Core 6 End plate 7 Through-hole 8 Entrance / exit pipe
8a Vertical section
8b Horizontal part
8c insertion part

９ 座金本体
10 脚部
10a 抱持部
11 座金
14 膨出部
15 端板
16 インナーフィン
17 ディンプル
18 支柱板
19 補強プレート 9 Washer body
10 legs
10a Holding part
11 Washer
14 bulge
15 End plate
16 Inner fin
17 dimples
18 Prop plate
19 Reinforcement plate

Claims (3)

多数のプレート(1)(2)が積層されて、各プレート間に第１の流体が流通する第１流路(3)と、第２の流体が流通する第２流路(4)とが交互に形成されてコア(5)を形成し、そのコア(5)の積層方向の端に端板(6)が配置され、その端板(6)の貫通孔(7)に、前記いずれかの流体の出入口パイプ(8)が挿通された積層型熱交換器のパイプ支持構造において、
平坦な座金本体(9)の周縁に一対の脚部(10)が一体に突出された座金(11)を有し、その座金本体(9)の平坦面が、前記貫通孔(7)の孔縁にろう付接続され、
前記出入口パイプ(8)は、少なくともその根元の軸線が垂直部(8a)と水平部(8b) とでＬ字状に曲折され、そのＬ字の水平部(8b)の外周が前記一対の脚部(10)の端部に設けられた抱持部(10a)で抱持され、その抱持部(10a)で出入口パイプ(8)と座金(11)とが一体にろう付されたことを特徴とする積層型熱交換器のパイプ支持構造。 A large number of plates (1) and (2) are laminated, and a first flow path (3) through which a first fluid flows between the plates and a second flow path (4) through which a second fluid flows. Alternately formed to form the core (5), the end plate (6) is disposed at the end of the core (5) in the stacking direction, and the through hole (7) of the end plate (6) In the pipe support structure of the laminated heat exchanger through which the fluid inlet / outlet pipe (8) is inserted,
A flat washer body (9) has a washer (11) with a pair of legs (10) protruding integrally around the periphery of the washer body (9), and the flat surface of the washer body (9) is a hole of the through hole (7). Brazed to the edge,
The inlet / outlet pipe (8) has at least a base axis bent in an L shape at a vertical portion (8a) and a horizontal portion (8b), and an outer periphery of the L-shaped horizontal portion (8b) is the pair of legs. It is held by the holding part (10a) provided at the end of the part (10), and the entrance pipe (8) and the washer (11) are brazed together at the holding part (10a). A pipe support structure for a laminated heat exchanger. 請求項１に記載の積層型熱交換器のパイプ支持構造において、
前記一対の脚部(10)が座金本体(9)から斜めに延在されて、前記出入口パイプ(8)の水平部(8b)の外周を前記抱持部(10a)で被嵌して、出入口パイプ(8)を筋交い状に支持することを特徴とする積層型熱交換器のパイプ支持構造。 In the pipe support structure of the laminated heat exchanger according to claim 1,
The pair of legs (10) extends obliquely from the washer body (9), and the outer periphery of the horizontal portion (8b) of the inlet / outlet pipe (8) is fitted with the holding portion (10a), A pipe support structure for a stacked heat exchanger, wherein the inlet / outlet pipe (8) is supported in a brace shape. 請求項１または請求項２のいずれかに記載の積層型熱交換器のパイプ支持構造において、
前記出入口パイプ(8)の付根に環状の膨出部(14)が形成され、その膨出部(14)が前記座金本体(9)の平面に当接して、それらの間が互いにろう付された積層型熱交換器のパイプ支持構造。 In the pipe support structure of the laminated heat exchanger according to any one of claims 1 and 2,
An annular bulging portion (14) is formed at the root of the inlet / outlet pipe (8), the bulging portion (14) abuts against the plane of the washer body (9), and they are brazed to each other. Pipe support structure for stacked heat exchangers.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5680897A (en) * 1996-09-12 1997-10-28 General Motors Corporation Plate type heat exchanger with integral feed pipe fixturing
JP2000291866A (en) * 1999-04-13 2000-10-20 Bosch Automotive Systems Corp Pipe connection structure
JP2002228077A (en) * 2001-02-06 2002-08-14 Sanden Corp Pipe joint structure
JP2005274067A (en) * 2004-03-25 2005-10-06 Calsonic Kansei Corp Stacked heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5680897A (en) * 1996-09-12 1997-10-28 General Motors Corporation Plate type heat exchanger with integral feed pipe fixturing
JP2000291866A (en) * 1999-04-13 2000-10-20 Bosch Automotive Systems Corp Pipe connection structure
JP2002228077A (en) * 2001-02-06 2002-08-14 Sanden Corp Pipe joint structure
JP2005274067A (en) * 2004-03-25 2005-10-06 Calsonic Kansei Corp Stacked heat exchanger

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