WO2024084972A1 - Surface contact heat exchanger - Google Patents

Surface contact heat exchanger Download PDF

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Publication number
WO2024084972A1
WO2024084972A1 PCT/JP2023/036257 JP2023036257W WO2024084972A1 WO 2024084972 A1 WO2024084972 A1 WO 2024084972A1 JP 2023036257 W JP2023036257 W JP 2023036257W WO 2024084972 A1 WO2024084972 A1 WO 2024084972A1
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plate
heat exchanger
inlet hole
outlet hole
cup plate
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PCT/JP2023/036257
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French (fr)
Japanese (ja)
Inventor
煕 久保田
朗 小室
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株式会社ティラド
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Publication of WO2024084972A1 publication Critical patent/WO2024084972A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating

Definitions

  • the present invention relates to a surface-contact heat exchanger, and in particular to a structure that protects the sealing surface of the flange plate.
  • a casing is formed by a cup plate 1 formed in a cup shape having a bottom, and a flat top plate 5 facing the inner surface of the bottom of the cup plate 1.
  • a flow path through which a heat medium 6 flows is formed between the cup plate 1 and the top plate 5, and the core 3 is disposed in the flow path.
  • a heat exchange object 4 is disposed on the outer surface of the top plate 5.
  • the outer surface of the bottom of the cup plate 1 contacts the inner surface of the flange plate 2.
  • the outer surface of the flange plate 2 has a seal surface 9 at the contact portion with the housing 11, and is attached to the housing 11 via a seal material 10. Heat exchange is performed between the heat medium 6 flowing within the core 3 and the heat exchange object 4 .
  • the cup plate 1, flange plate 2, top plate 5 and core 3 are brazed together using flux.
  • the brazing material or flux applied to the components may move through the outflow path 12 and flow onto the sealing surface 9 of the flange plate 2, as shown in FIG. 8, which may impair the sealing function between the flange plate 2 and the housing 11. Therefore, the present invention provides a structure for preventing the outflow of wax and flux to the sealing surface 9 of the flange plate 2 in a surface-contact type heat exchanger.
  • the first invention for solving the above problem includes a dish-shaped cup plate 1 having a first inlet hole 1a and a first outlet hole 1b for a heat medium 6 in a bottom portion 1c, a flange plate 2 supporting an outer surface of the bottom 1c of the cup plate 1, having a second inlet hole 2a and a second outlet hole 2b communicating with the first inlet hole 1a and the first outlet hole 1b formed therein, and having a seal surface 9 on an outer surface opposite to the cup plate 1; A core 3 to be fitted inside the cup plate 1; a top plate 5 that closes the opening of the cup plate 1 and has an outer surface opposite to the cup plate 1 that is in surface contact with a heat exchange object 4; Equipped with In a surface-contact type heat exchanger in which each part is joined by brazing, An annular protrusion 7 is formed on the edge of the second inlet hole 2a or the second outlet hole 2b of the flange plate 2, and the protrusion 7 is fitted into the first inlet hole 1a or the first outlet hole 1
  • the second invention is a surface-contact heat exchanger according to the first invention, in which the gap 8 is 1 mm or less.
  • the third invention is a surface-contact heat exchanger according to the first invention, in which the height of the ridges 7 is smaller than the thickness of the cup plate 1.
  • a ring-shaped protrusion 7 is formed on the edge of the second inlet hole 2a or the second outlet hole 2b of the flange plate 2, and the protrusion 7 is fitted into the first inlet hole 1a or the first outlet hole 1b of the cup plate 1, and in this fitted state, a gap 8 is formed between the protrusion 7 and the first inlet hole 1a or the first outlet hole 1b.
  • the second invention is the first invention, wherein the gap 8 is set to 1 mm or less.
  • the interfacial tension with the protrusion 7 and the interfacial tension with the first inlet hole 1a or the first outlet hole 1b act in a combined manner, increasing the retention force of the solder or flux in the gap 8, thereby further preventing the solder and flux from flowing out to the sealing surface 9 of the flange plate 2.
  • the third invention is the same as the first invention, except that the height of the ridges 7 is smaller than the thickness of the cup plate 1 . With this configuration, it is possible to prevent the outflow of brazing filler metal and flux onto the sealing surface 9 of the flange plate 2 while reducing the processing costs of the protrusions 7 of the flange plate 2 .
  • FIG. 2 is an exploded perspective view of the surface contact type heat exchanger of the present invention.
  • 2 is a cross-sectional explanatory view of a main part of the heat exchanger in use, taken along the line II-II in FIG. 1 .
  • FIG. 4 is an explanatory view of a main part showing a brazed state of the heat exchanger.
  • FIG. 4 is an explanatory diagram showing the flow of flux through an outflow path 12 in the brazed state of the heat exchanger.
  • FIG. 4 is a cross-sectional view of a main portion showing a second embodiment of the flange plate 2 of the present invention.
  • FIG. 11 is a cross-sectional view of a main portion showing the third embodiment.
  • FIG. 1 is a cross-sectional view illustrating a main portion of a conventional heat exchanger.
  • FIG. 1 is an explanatory diagram showing a state during brazing in a conventional heat exchanger.
  • the heat exchanger of the present invention comprises a cup plate 1 formed in a dish shape, a top plate 5 that closes the opening of the cup plate 1, a core 3 that is fitted inside the cup plate 1, and a flange plate 2 that supports the outer surface of the bottom 1c of the cup plate 1.
  • the cup plate 1 has a first inlet hole 1a and a first outlet hole 1b for the heat medium 6 on the bottom portion 1c.
  • a peripheral wall 1d is formed on the peripheral edge of the bottom portion 1c of the cup plate 1, and a peripheral portion 1e is formed at an end of the peripheral wall 1d.
  • a peripheral edge 5 a of a top plate 5 is connected to an edge portion 1 e of the cup plate 1 .
  • the core 3 mounted inside the cup plate 1 may be a laminate of punched plates as shown in FIG. 1, or may be offset or corrugated fins (not shown).
  • the flange plate 2 has a second inlet hole 2a and a second outlet hole 2b which communicate with the first inlet hole 1a and the first outlet hole 1b of the cup plate 1, and has a sealing surface 9 on the outer surface of the flange plate 2 opposite the surface to which the cup plate 1 is connected. These components are joined together by brazing.
  • the top plate 5 is in surface contact with the heat exchange object 4 on the outer surface opposite to the surface to which the cup plate 1 is connected.
  • the sealing surface 9 of the flange plate 2 is connected to the surface of the housing 11 via a sealing material 10 as shown in FIG.
  • the heat transfer medium 6 is supplied to the core 3 housed in the cup plate 1 through the housing 11, the second inlet hole 2a of the flange plate 2, and the first inlet hole 1a of the cup plate 1, and is discharged from the first outlet hole 1b.
  • This surface-contact heat exchanger exchanges heat between a heat exchange object 4 and a heat medium 6, and can be used, for example, as a cooler for electronic components of an electric vehicle.
  • the heat exchange object 4 is a heat generating element such as various electronic components, for example, an inverter or a power transistor
  • the heat medium 6 is a cooling water or a refrigerant.
  • the heat medium 6 is a heating fluid.
  • annular protrusions 7 are formed on the hole edges of the second inlet hole 2a and the second outlet hole 2b of the flange plate 2 on the side opposite to the sealing surface 9. As shown in Fig. 2, these protrusions 7 fit into the first inlet hole 1a and the first outlet hole 1b of the cup plate 1 with a gap 8 therebetween. As mentioned above, when fitted, a gap 8 is formed between the protrusion 7 of the second inlet hole 2a and the first inlet hole 1a (the configuration of the protrusion 7 of the second outlet hole 2b and the first outlet hole 1b side is the same as the configuration of the first inlet hole 1a and the second inlet hole 2a side, so is not shown in the illustration).
  • the protrusion 7 is preferably a closed ring, but it may be partially open.
  • 3 and 4 are explanatory views showing the operation of the surface-contact heat exchanger of the present invention.
  • an annular protrusion 7 formed on the edge of the second inlet hole 2a of the flange plate 2 is fitted into the first inlet hole 1a of the cup plate 1 with a gap 8. Therefore, the distance on the surface from the brazing portion to the seal surface 9 of the flange plate 2 is long, and the brazing filler and flux that flow out from the brazing portion is held in the gap 8 (see the brazing filler and flux pool 13 in FIG. 4), preventing the brazing filler and flux from flowing out to the seal surface 9 of the flange plate 2.
  • the width S of the gap 8 is 1 mm or less.
  • the protruding height H of the annular ridge 7 (the height from the plane of the flange plate 2 to the top of the ridge 7) is smaller than the plate thickness t of the cup plate 1, as shown in Figures 3 and 4.
  • FIG. 5 shows a second embodiment of the present invention.
  • two concentric ridges 7 are formed in the second inlet hole 2a of the flange plate 2. This can further enhance the effect of preventing the outflow of brazing filler metal and flux.
  • FIG. 6 shows a third embodiment of the present invention.
  • the protrusion 7 is formed with a curved surface without any corners. Even with this protrusion 7, the effects of the present invention can be achieved.
  • the present invention can be widely used as a surface-contact heat exchanger, and is particularly suitable as an inverter cooler for electric vehicles.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

[Problem] To prevent, in a surface contact heat exchanger, a brazing material and flux from flowing onto a seal surface of a flange plate. [Solution] In the present invention, an annular protrusion 7 is formed along the edge of a second inlet hole 2a or a second outlet hole 2b which are both part of a flange plate 2. The protrusion 7 engages with a first inlet hole 1a or a second outlet hole 1b which are both part of a cup plate 1. In that engaged state, a space 8 is formed between the protrusion 7 and the first inlet hole 1a or the first outlet hole 1b.

Description

面接触型熱交換器Surface contact type heat exchanger
　本発明は、面接触型熱交換器に関し、特に、そのフランジプレートのシール面を保護する構造に関する。 The present invention relates to a surface-contact heat exchanger, and in particular to a structure that protects the sealing surface of the flange plate.
　従来知られている面接触型熱交換器においては、図７に示す如く、底部を有するカップ状に形成されたカッププレート１と、カッププレート１の底部の内面に対向する平坦なトッププレート５とによりケーシングが形成されている。
　カッププレート１とトッププレート５との間に、熱媒体６が流通する流路が形成され、その流路にコア３が配置される。トッププレート５の外側の面には熱交換対象物４が配置される。
　カッププレート１の底部の外面は、フランジプレート２の内面に接する。そのフランジプレート２の外面には筐体１１との接触部にシール面９を有し、シール材１０を介して筐体１１に取付けられる。
　そして、コア３内を流通する熱媒体６と、熱交換対象物４との間で熱交換を行うものである。 In a conventionally known surface-contact heat exchanger, as shown in FIG. 7 , a casing is formed by a cup plate 1 formed in a cup shape having a bottom, and a flat top plate 5 facing the inner surface of the bottom of the cup plate 1.
A flow path through which a heat medium 6 flows is formed between the cup plate 1 and the top plate 5, and the core 3 is disposed in the flow path. A heat exchange object 4 is disposed on the outer surface of the top plate 5.
The outer surface of the bottom of the cup plate 1 contacts the inner surface of the flange plate 2. The outer surface of the flange plate 2 has a seal surface 9 at the contact portion with the housing 11, and is attached to the housing 11 via a seal material 10.
Heat exchange is performed between the heat medium 6 flowing within the core 3 and the heat exchange object 4 .
　従来型の面接触型熱交換器において、カッププレート１、フランジプレート２、トッププレート５およびとコア３は、フラックスを用いて一体にろう付されている。
　上記のろう付の際に、部材に塗布された、ろう、またはフラックスが、図８に示す如く、流出経路１２を移動して、フランジプレート２のシール面９に流出し、フランジプレート２と筐体１１との間のシール機能を害するおそれがある。
　そこで本発明は、面接触型熱交換器におけるフランジプレート２のシール面９への、ろう、及びフラックスの流出を防ぐ構造を提供する。 In a conventional surface-contact heat exchanger, the cup plate 1, flange plate 2, top plate 5 and core 3 are brazed together using flux.
During the above brazing, the brazing material or flux applied to the components may move through the outflow path 12 and flow onto the sealing surface 9 of the flange plate 2, as shown in FIG. 8, which may impair the sealing function between the flange plate 2 and the housing 11.
Therefore, the present invention provides a structure for preventing the outflow of wax and flux to the sealing surface 9 of the flange plate 2 in a surface-contact type heat exchanger.
　上記課題を解決するための第１の発明は、底部１ｃに熱媒体６の第１入口孔１ａと第１出口孔１ｂとを有する皿状のカッププレート１と、
　カッププレート１の底部１ｃの外面を支持し、前記第１入口孔１ａと第１出口孔１ｂとに連通する第２入口孔２ａと第２出口孔２ｂとが形成され、カッププレート１とは反対側の外面にシール面９を有するフランジプレート２と、
　カッププレート１に内装されるコア３と、
　カッププレート１の開口を閉塞し、カッププレート１とは反対側の外面に熱交換対象物４が面接触するトッププレート５と、
　を具備し、
　それら各部品がろう付により接合される面接触型熱交換器において、
　フランジプレート２の第２入口孔２ａまたは第２出口孔２ｂの孔縁には環状の突条７が形成されており、その突条７は前記カッププレート１の第１入口孔１ａまたは第１出口孔１ｂに嵌合し、
　前記嵌合した状態で、前記突条７と第１入口孔１ａまたは第１出口孔１ｂとの間には隙間８が形成されている面接触型熱交換器である。 The first invention for solving the above problem includes a dish-shaped cup plate 1 having a first inlet hole 1a and a first outlet hole 1b for a heat medium 6 in a bottom portion 1c,
a flange plate 2 supporting an outer surface of the bottom 1c of the cup plate 1, having a second inlet hole 2a and a second outlet hole 2b communicating with the first inlet hole 1a and the first outlet hole 1b formed therein, and having a seal surface 9 on an outer surface opposite to the cup plate 1;
A core 3 to be fitted inside the cup plate 1;
a top plate 5 that closes the opening of the cup plate 1 and has an outer surface opposite to the cup plate 1 that is in surface contact with a heat exchange object 4;
Equipped with
In a surface-contact type heat exchanger in which each part is joined by brazing,
An annular protrusion 7 is formed on the edge of the second inlet hole 2a or the second outlet hole 2b of the flange plate 2, and the protrusion 7 is fitted into the first inlet hole 1a or the first outlet hole 1b of the cup plate 1,
In the fitted state, a gap 8 is formed between the protrusion 7 and the first inlet hole 1a or the first outlet hole 1b, which is a surface-contact heat exchanger.
　第２の発明は、上記第１の発明において、前記隙間８が１ｍｍ以下である面接触型熱交換器である。 The second invention is a surface-contact heat exchanger according to the first invention, in which the gap 8 is 1 mm or less.
　第３の発明は、上記第１の発明において、突条７の高さが、カッププレート１の板厚より小である面接触型熱交換器である。 The third invention is a surface-contact heat exchanger according to the first invention, in which the height of the ridges 7 is smaller than the thickness of the cup plate 1.
　第１の発明の面接触型熱交換器は、フランジプレート２の第２入口孔２ａまたは第２出口孔２ｂの孔縁には環状の突条７が形成されており、その突条７が前記カッププレート１の第１入口孔１ａまたは第１出口孔１ｂに嵌合し、その嵌合した状態で、突条７と第１入口孔１ａまたは第１出口孔１ｂとの間に隙間８が形成されたものである。
　この構成により、ろう付部からフランジプレート２のシール面９までの表面上の距離が長くなり、且つ、ろう付部から流出した、ろうや、フラックスが隙間８に保持されるので、フランジプレート２のシール面９への、ろうおよびフラックスの流出が防止される。 In the surface-contact heat exchanger of the first invention, a ring-shaped protrusion 7 is formed on the edge of the second inlet hole 2a or the second outlet hole 2b of the flange plate 2, and the protrusion 7 is fitted into the first inlet hole 1a or the first outlet hole 1b of the cup plate 1, and in this fitted state, a gap 8 is formed between the protrusion 7 and the first inlet hole 1a or the first outlet hole 1b.
With this configuration, the surface distance from the brazing portion to the sealing surface 9 of the flange plate 2 is increased, and the brazing material and flux that flow out from the brazing portion are retained in the gap 8, thereby preventing the brazing material and flux from flowing out to the sealing surface 9 of the flange plate 2.
　第２の発明は、上記第１の発明において、隙間８を１ｍｍ以下としたものである。
　この構成により、突条７との界面張力と、第１入口孔１ａまたは第１出口孔１ｂとの界面張力とが重ね合わさって作用するようになり、隙間８における、ろう、またはフラックスの保持力が高まるので、よりいっそう、フランジプレート２のシール面９へのろうおよびフラックスの流出が防止される。 The second invention is the first invention, wherein the gap 8 is set to 1 mm or less.
With this configuration, the interfacial tension with the protrusion 7 and the interfacial tension with the first inlet hole 1a or the first outlet hole 1b act in a combined manner, increasing the retention force of the solder or flux in the gap 8, thereby further preventing the solder and flux from flowing out to the sealing surface 9 of the flange plate 2.
　第３の発明は、上記第１の発明において、突条７の高さを、カッププレート１の板厚より小としたものである。
　この構成により、フランジプレート２の突条７の加工費を抑えつつ、フランジプレート２のシール面９へのろうおよびフラックスの流出を防止することが可能となる。 The third invention is the same as the first invention, except that the height of the ridges 7 is smaller than the thickness of the cup plate 1 .
With this configuration, it is possible to prevent the outflow of brazing filler metal and flux onto the sealing surface 9 of the flange plate 2 while reducing the processing costs of the protrusions 7 of the flange plate 2 .
本発明の面接触型熱交換器の分解斜視図。FIG. 2 is an exploded perspective view of the surface contact type heat exchanger of the present invention. 同熱交換器の使用状態を示す要部断面説明図であって、図１のＩＩ－ＩＩ矢視図。2 is a cross-sectional explanatory view of a main part of the heat exchanger in use, taken along the line II-II in FIG. 1 . 同熱交換器のろう付状態を示す要部説明図。FIG. 4 is an explanatory view of a main part showing a brazed state of the heat exchanger. 同熱交換器のろう付状態におけるフラックスの流出経路１２の流れを示す説明図。FIG. 4 is an explanatory diagram showing the flow of flux through an outflow path 12 in the brazed state of the heat exchanger. 本発明のフランジプレート２の第２実施例を示す要部断面図。FIG. 4 is a cross-sectional view of a main portion showing a second embodiment of the flange plate 2 of the present invention. 同第３実施例を示す要部断面図。FIG. 11 is a cross-sectional view of a main portion showing the third embodiment. 従来型熱交換器の要部断面説明図。FIG. 1 is a cross-sectional view illustrating a main portion of a conventional heat exchanger. 従来型熱交換器における、ろう付時の状態を示す説明図。FIG. 1 is an explanatory diagram showing a state during brazing in a conventional heat exchanger.
　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。
　本発明の熱交換器は、図１に示す如く、皿状に形成されたカッププレート１と、カッププレート１の開口を閉塞するトッププレート５と、カッププレート１に内装されるコア３と、カッププレート１の底部１ｃの外面を支持するフランジプレート２と、を具備する。
　カッププレート１は、底部１ｃに熱媒体６の第１入口孔１ａと第１出口孔１ｂとを有する。
　カッププレート１の底部１ｃの周縁に周壁１ｄが形成され、その周壁１ｄの端部に周縁部１ｅが形成されている。
　カッププレート１の縁部１ｅには、トッププレート５の周縁５ａが接続される。
　カッププレート１に内装されるコア３は、図１に示す如く、パンチングプレートの積層体であっても、図示しないオフセット状または、コルゲート状に形成されたフィン等であってもよい。
　フランジプレート２は、カッププレート１の第１入口孔１ａと第１出口孔１ｂとに連通する第２入口孔２ａと第２出口孔２ｂとを有し、フランジプレート２のカッププレート１が接続される面とは反対側の外面にシール面９を有する。
　これら各部品がろう付により接合されている。 Next, an embodiment of the present invention will be described with reference to the drawings.
As shown in Figure 1, the heat exchanger of the present invention comprises a cup plate 1 formed in a dish shape, a top plate 5 that closes the opening of the cup plate 1, a core 3 that is fitted inside the cup plate 1, and a flange plate 2 that supports the outer surface of the bottom 1c of the cup plate 1.
The cup plate 1 has a first inlet hole 1a and a first outlet hole 1b for the heat medium 6 on the bottom portion 1c.
A peripheral wall 1d is formed on the peripheral edge of the bottom portion 1c of the cup plate 1, and a peripheral portion 1e is formed at an end of the peripheral wall 1d.
A peripheral edge 5 a of a top plate 5 is connected to an edge portion 1 e of the cup plate 1 .
The core 3 mounted inside the cup plate 1 may be a laminate of punched plates as shown in FIG. 1, or may be offset or corrugated fins (not shown).
The flange plate 2 has a second inlet hole 2a and a second outlet hole 2b which communicate with the first inlet hole 1a and the first outlet hole 1b of the cup plate 1, and has a sealing surface 9 on the outer surface of the flange plate 2 opposite the surface to which the cup plate 1 is connected.
These components are joined together by brazing.
　トッププレート５は、カッププレート１が接続される面とは反対側の外面において、熱交換対象物４と面接触する。
　フランジプレート２のシール面９は、図２に示す如く、シール材１０を介して、筐体１１の表面に接続される。
　熱媒体６は、筐体１１、フランジプレート２の第２入口孔２ａ、カッププレート１の第１入口孔１ａを通じて、カッププレート１に内装されたコア３に供給され、第１出口孔１ｂから排出される。 The top plate 5 is in surface contact with the heat exchange object 4 on the outer surface opposite to the surface to which the cup plate 1 is connected.
The sealing surface 9 of the flange plate 2 is connected to the surface of the housing 11 via a sealing material 10 as shown in FIG.
The heat transfer medium 6 is supplied to the core 3 housed in the cup plate 1 through the housing 11, the second inlet hole 2a of the flange plate 2, and the first inlet hole 1a of the cup plate 1, and is discharged from the first outlet hole 1b.
　この面接触型熱交換器は、熱交換対象物４と熱媒体６との間で熱交換されるものであり、例えば、電動車両の電子部品の冷却器として利用できる。
　上記の目的で面接触型熱交換器を利用する場合、熱交換対象物４は、各種電子部品、例えばインバータやパワートランジスタ等の発熱体であり、熱媒体６は、冷却水や冷媒である。熱交換対象物４に熱を与える場合は、熱媒体６は加温流体である。 This surface-contact heat exchanger exchanges heat between a heat exchange object 4 and a heat medium 6, and can be used, for example, as a cooler for electronic components of an electric vehicle.
When a surface-contact heat exchanger is used for the above purpose, the heat exchange object 4 is a heat generating element such as various electronic components, for example, an inverter or a power transistor, and the heat medium 6 is a cooling water or a refrigerant. When heat is applied to the heat exchange object 4, the heat medium 6 is a heating fluid.
　本実施例では、図１に示す如く、フランジプレート２の第２入口孔２ａおよび第２出口孔２ｂのシール面９と反対側の孔縁に環状の突条７が形成されている。図２に示す如く、それらの突条７がカッププレート１の第１入口孔１ａおよび第１出口孔１ｂに隙間８を有して嵌合する。
　前述のとおり、嵌合した状態で、第２入口孔２ａの突条７と第１入口孔１ａとの間には隙間８が形成されている（第２出口孔２ｂの突条７と第１出口孔１ｂ側の構成は、第１入口孔１ａ、第２入口孔２ａ側と同じ構成であるため、図示を省略する。）。
　なお、第１入口孔１ａの全周に渡って突条７と第１入口孔１ａとの間に、隙間８を有することが好ましいが、その全周に渡って隙間８を有することは必須ではなく、少なくともその周の一部に隙間を有すれば可である。
　また、突条７は閉じた環状であることが望ましいが、その一部が開いていても可である。 In this embodiment, as shown in Fig. 1, annular protrusions 7 are formed on the hole edges of the second inlet hole 2a and the second outlet hole 2b of the flange plate 2 on the side opposite to the sealing surface 9. As shown in Fig. 2, these protrusions 7 fit into the first inlet hole 1a and the first outlet hole 1b of the cup plate 1 with a gap 8 therebetween.
As mentioned above, when fitted, a gap 8 is formed between the protrusion 7 of the second inlet hole 2a and the first inlet hole 1a (the configuration of the protrusion 7 of the second outlet hole 2b and the first outlet hole 1b side is the same as the configuration of the first inlet hole 1a and the second inlet hole 2a side, so is not shown in the illustration).
It is preferable to have a gap 8 between the protrusion 7 and the first inlet hole 1a around the entire circumference of the first inlet hole 1a, but it is not essential to have the gap 8 around the entire circumference, and it is sufficient to have a gap around at least a part of the circumference.
Moreover, the protrusion 7 is preferably a closed ring, but it may be partially open.
　図３及び図４は、本発明の面接触型熱交換器の作用を示す説明図である。
　本発明では、図３、図４に示す如く、フランジプレート２の第２入口孔２ａの孔縁に形成された環状の突条７がカッププレート１の第１入口孔１ａに隙間８を空けて嵌合している。それゆえ、ろう付部からフランジプレート２のシール面９までの表面上の距離が長くなり、且つ、ろう付部から流出した、ろうや、フラックスが隙間８に保持される（図４のろう、フラックス溜まり１３を参照）ので、フランジプレート２のシール面９への、ろうおよびフラックスの流出が防止される。 3 and 4 are explanatory views showing the operation of the surface-contact heat exchanger of the present invention.
3 and 4, in the present invention, an annular protrusion 7 formed on the edge of the second inlet hole 2a of the flange plate 2 is fitted into the first inlet hole 1a of the cup plate 1 with a gap 8. Therefore, the distance on the surface from the brazing portion to the seal surface 9 of the flange plate 2 is long, and the brazing filler and flux that flow out from the brazing portion is held in the gap 8 (see the brazing filler and flux pool 13 in FIG. 4), preventing the brazing filler and flux from flowing out to the seal surface 9 of the flange plate 2.
　また、この隙間８の間隔Ｓは１ｍｍ以下であることが好ましい。
　この構成により、突条７との界面張力と、第１入口孔１ａまたは第１出口孔１ｂとの界面張力とが重ね合わさって作用するようになり、隙間８における、ろう、またはフラックスの保持力が高まるので、よりいっそう、フランジプレート２のシール面９へのろうおよびフラックスの流出が防止される。 Moreover, it is preferable that the width S of the gap 8 is 1 mm or less.
With this configuration, the interfacial tension with the protrusion 7 and the interfacial tension with the first inlet hole 1a or the first outlet hole 1b act in a combined manner, increasing the retention force of the solder or flux in the gap 8, thereby further preventing the solder and flux from flowing out to the sealing surface 9 of the flange plate 2.
　さらに、環状の突条７の突出の高さＨ（フランジプレート２の平面から突条７の頂部までの高さ）は、図３、図４に記載の如く、カッププレート１の板厚ｔよりも小さく形成することが好ましい。
　この構成により、フランジプレート２の突条７の加工費を抑えつつ、フランジプレート２のシール面９へのろうおよびフラックスの流出を防止することが可能となる。 Furthermore, it is preferable that the protruding height H of the annular ridge 7 (the height from the plane of the flange plate 2 to the top of the ridge 7) is smaller than the plate thickness t of the cup plate 1, as shown in Figures 3 and 4.
With this configuration, it is possible to prevent the outflow of brazing filler metal and flux onto the sealing surface 9 of the flange plate 2 while reducing the processing costs of the protrusions 7 of the flange plate 2 .
　次に、図５は本発明の第２の実施例である。
　この実施例では、フランジプレート２の第２入口孔２ａに、同心の二つの突条７が形成されている。
　これにより、ろう、およびフラックスの流出の防止効果をより高めることができる。 Next, FIG. 5 shows a second embodiment of the present invention.
In this embodiment, two concentric ridges 7 are formed in the second inlet hole 2a of the flange plate 2.
This can further enhance the effect of preventing the outflow of brazing filler metal and flux.
　次に、図６は本発明の第３の実施例である。
　この実施例では、突条７は、角がない曲面で形成されている。
　この突条７であっても、本発明の効果を発揮することができる。 Next, FIG. 6 shows a third embodiment of the present invention.
In this embodiment, the protrusion 7 is formed with a curved surface without any corners.
Even with this protrusion 7, the effects of the present invention can be achieved.
　本発明は、面接触型熱交換器として広く利用可能であり、特に、電動車両のインバータ冷却器として好適である。 The present invention can be widely used as a surface-contact heat exchanger, and is particularly suitable as an inverter cooler for electric vehicles.
　１　カッププレート
　１ａ　第１入口孔
　１ｂ　第１出口孔
　１ｃ　底部
　１ｄ　周壁
　１ｅ　周縁部
　２　フランジプレート
　２ａ　第２入口孔
　２ｂ　第２出口孔 REFERENCE SIGNS LIST 1 cup plate 1a first inlet hole 1b first outlet hole 1c bottom portion 1d peripheral wall 1e peripheral edge portion 2 flange plate 2a second inlet hole 2b second outlet hole
　３　コア
　４　熱交換対象物
　５　トッププレート
　５ａ　周縁部
　６　熱媒体
　７　突条
　８　隙間
　９　シール面
　１０　シール材
　１１　筐体
　１２　流出経路
　１３　ろう、フラックス溜まり
　Ｓ　隙間８の間隔
　Ｈ　突条７の突出の高さ
　ｔ　カッププレート１の板厚
  Reference Signs List 3: Core 4: Heat exchange object 5: Top plate 5a: Periphery 6: Heat medium 7: Ridge 8: Gap 9: Sealing surface 10: Sealing material 11: Housing 12: Outflow path 13: Brazing filler, flux accumulation S: Spacing of gap 8 H: Height of protrusion of rib 7 t: Plate thickness of cup plate 1

Claims (3)

  1. 　底部（１ｃ）に熱媒体（６）の第１入口孔（１ａ）と第１出口孔（１ｂ）とを有する皿状のカッププレート（１）と、
    　カッププレート（１）の底部（１ｃ）の外面を支持し、前記第１入口孔（１ａ）と第１出口孔（１ｂ）とに連通する第２入口孔（２ａ）と第２出口孔（２ｂ）とが形成され、カッププレート（１）とは反対側の外面にシール面（９）を有するフランジプレート（２）と、
    　カッププレート（１）に内装されるコア（３）と、
    　カッププレート（１）の開口を閉塞し、カッププレート（１）とは反対側の外面に熱交換対象物（４）が面接触するトッププレート（５）と、
    　を具備し、
    　それら各部品がろう付により接合される面接触型熱交換器において、
    　フランジプレート（２）の第２入口孔（２ａ）または第２出口孔（２ｂ）の孔縁には環状の突条（７）が形成されており、その突条（７）は前記カッププレート（１）の第１入口孔（１ａ）または第１出口孔（１ｂ）に嵌合し、
    　前記嵌合した状態で、前記突条（７）と第１入口孔（１ａ）または第１出口孔（１ｂ）との間には隙間（８）が形成されている面接触型熱交換器。     a dish-shaped cup plate (1) having a first inlet hole (1a) and a first outlet hole (1b) for a heat transfer medium (6) on a bottom portion (1c);
    a flange plate (2) supporting an outer surface of the bottom (1c) of the cup plate (1), having a second inlet hole (2a) and a second outlet hole (2b) communicating with the first inlet hole (1a) and the first outlet hole (1b) formed therein, and having a sealing surface (9) on an outer surface opposite to the cup plate (1);
    A core (3) to be fitted in the cup plate (1);
    a top plate (5) that closes the opening of the cup plate (1) and has an outer surface opposite to the cup plate (1) that is in surface contact with a heat exchange object (4);
    Equipped with
    In a surface-contact type heat exchanger in which each part is joined by brazing,
    An annular protrusion (7) is formed on the edge of the second inlet hole (2a) or the second outlet hole (2b) of the flange plate (2), and the protrusion (7) is fitted into the first inlet hole (1a) or the first outlet hole (1b) of the cup plate (1);
    In the fitted state, a gap (8) is formed between the protrusion (7) and the first inlet hole (1a) or the first outlet hole (1b).
  2. 　請求項１に記載の面接触型熱交換器において、
    　前記隙間（８）が１ｍｍ以下である面接触型熱交換器。     2. The surface contact type heat exchanger according to claim 1,
    A surface-contact heat exchanger, wherein the gap (8) is 1 mm or less.
  3. 　請求項１に記載の面接触型熱交換器において、
    　突条（７）の高さが、カッププレート（１）の板厚より小である面接触型熱交換器。
          2. The surface contact type heat exchanger according to claim 1,
    A surface-contact heat exchanger in which the height of the ridges (7) is smaller than the thickness of the cup plate (1).
PCT/JP2023/036257 2022-10-21 2023-10-04 Surface contact heat exchanger WO2024084972A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694386A (en) * 1992-09-14 1994-04-05 Sanden Corp Heat exchanger
JP2001091105A (en) * 1999-09-22 2001-04-06 Mitsubishi Electric Corp Refrigerant distributor and method for production thereof
JP2004205055A (en) * 2002-12-20 2004-07-22 Toyo Radiator Co Ltd Plate type heat exchanger
JP2013183021A (en) * 2012-03-01 2013-09-12 Toyota Industries Corp Cooler
JP2019186237A (en) * 2018-04-02 2019-10-24 富士電機株式会社 Cooling device, semiconductor module and vehicle
WO2020153462A1 (en) * 2019-01-25 2020-07-30 株式会社ティラド Heat exchanger
JP2021103060A (en) * 2019-12-25 2021-07-15 昭和電工パッケージング株式会社 Heat exchanger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694386A (en) * 1992-09-14 1994-04-05 Sanden Corp Heat exchanger
JP2001091105A (en) * 1999-09-22 2001-04-06 Mitsubishi Electric Corp Refrigerant distributor and method for production thereof
JP2004205055A (en) * 2002-12-20 2004-07-22 Toyo Radiator Co Ltd Plate type heat exchanger
JP2013183021A (en) * 2012-03-01 2013-09-12 Toyota Industries Corp Cooler
JP2019186237A (en) * 2018-04-02 2019-10-24 富士電機株式会社 Cooling device, semiconductor module and vehicle
WO2020153462A1 (en) * 2019-01-25 2020-07-30 株式会社ティラド Heat exchanger
JP2021103060A (en) * 2019-12-25 2021-07-15 昭和電工パッケージング株式会社 Heat exchanger

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