JP2021007084A - Heat exchanger - Google Patents

Heat exchanger Download PDF

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JP2021007084A
JP2021007084A JP2019121066A JP2019121066A JP2021007084A JP 2021007084 A JP2021007084 A JP 2021007084A JP 2019121066 A JP2019121066 A JP 2019121066A JP 2019121066 A JP2019121066 A JP 2019121066A JP 2021007084 A JP2021007084 A JP 2021007084A
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component
adhesive
heat exchanger
series
covalent bond
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JP7314655B2 (en
Inventor
森本　正和
Masakazu Morimoto
正和 森本
雅貴 内山
Masaki Uchiyama
雅貴 内山
大未 齊藤
Masami Saito
大未 齊藤
田中　聡
Satoshi Tanaka
聡 田中
安浩 水野
Yasuhiro Mizuno
安浩 水野
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Denso Corp
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Denso Corp
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Priority to PCT/JP2020/024741 priority patent/WO2020262434A1/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
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

To provide a heat exchanger that can be made lightweight while securing pressure resistance.SOLUTION: A heat exchanger has a heat exchanging member 30 having two components 33, 34 of aluminum alloy jointed, and exchanges heat between cooling fluid flowing through a flow passage formed inside the heat exchanging member 30 and a battery outside the heat exchanging member 30. The first components 33 and the second component 34 are joined together via an adhesive 35. On a surface 330a of the first component 33 opposed to the adhesive 35, a first covalent binding layer 36 is formed which covalently binds a boundary surface between the first component 33 and the adhesive 35. On a surface of the second component 34 opposed to the adhesive 35, a second covalent binding layer 37 is formed which covalently binds a boundary surface between the second component 34 and the adhesive 35.SELECTED DRAWING: Figure 3

Description

本開示は、熱交換器に関する。 The present disclosure relates to heat exchangers.

従来、下記の特許文献１に記載の熱交換器がある。特許文献１に記載の熱交換器は、互いに接合される複数のプレート部材により構成されている。熱交換器の内部には、流体の流れる流路が形成されている。この熱交換器の外面には、電池を設置することが可能となっている。この熱交換器では、その外面に設置される電池と、その内部を流れる流体との間で熱交換が行われることにより、電池を冷却することが可能となっている。 Conventionally, there is a heat exchanger described in Patent Document 1 below. The heat exchanger described in Patent Document 1 is composed of a plurality of plate members joined to each other. A fluid flow path is formed inside the heat exchanger. Batteries can be installed on the outer surface of this heat exchanger. In this heat exchanger, it is possible to cool the battery by exchanging heat between the battery installed on the outer surface thereof and the fluid flowing inside the battery.

特表２０１３−５３９８９９号公報Special Table 2013-539899

熱交換器の各種部品を形成する材料には、主に、アルミニウムや、銅、樹脂、ステンレス鋼等が用いられる。特に、車両に搭載される熱交換器では、その構成部品を形成する材料として、アルミニウム合金が用いられることが多い。このような熱交換器では、アルミニウム合金からなる複数の部品がろう付けにより接合されている。ろう付けに適した部品の材料としては、１０００番系や３０００番系のアルミニウム合金が用いられる。この種のアルミニウム合金が熱交換器の部品の材料として用いられる理由は以下の通りである。 Aluminum, copper, resin, stainless steel and the like are mainly used as materials for forming various parts of the heat exchanger. In particular, in heat exchangers mounted on vehicles, aluminum alloys are often used as a material for forming the components thereof. In such a heat exchanger, a plurality of parts made of an aluminum alloy are joined by brazing. As a material for parts suitable for brazing, 1000 series or 3000 series aluminum alloys are used. The reasons why this kind of aluminum alloy is used as a material for heat exchanger parts are as follows.

複数の部品を互いに接合するためのろう材には、ろう付けに適したアルミニウム合金が用いられる。熱交換器の製造の際には、ろう材が予め塗布されたアルミニウム合金からなる複数の部品が用意される。それらの複数の部品が治具により組み付けられた後、その組立品を炉内に投入して加熱する。これにより、部品の表面のろう材が融解し、各部品の接合部分にろう材が浸透する。その後、この組立品が自然冷却等により冷却されることにより、熱交換器の製造が完了する。このような工程を経て熱交換器を製造する場合、組立品を炉内に投入して加熱した際に、部品を形成するアルミニウム合金に含まれている添加剤がろう材に侵入する可能性がある。ろう材に添加剤が侵入すると、ろう材の特性が変化するため、結果としてろう付けが適切に行われないおそれがある。このような問題を回避するために、従来の熱交換器では、部品を形成する材料として、ろう付けを阻害しない材料、具体的には１０００番系や３０００番系のアルミニウム合金が選定されている。 An aluminum alloy suitable for brazing is used as the brazing material for joining a plurality of parts to each other. During the manufacture of heat exchangers, a plurality of parts made of an aluminum alloy pre-coated with a brazing material are prepared. After the plurality of parts are assembled by a jig, the assembly is put into a furnace and heated. As a result, the brazing material on the surface of the parts melts, and the brazing material permeates the joint portion of each part. After that, the assembly is cooled by natural cooling or the like to complete the production of the heat exchanger. When a heat exchanger is manufactured through such a process, when the assembly is put into a furnace and heated, the additives contained in the aluminum alloy forming the parts may invade the brazing material. is there. When additives enter the brazing material, the characteristics of the brazing material change, and as a result, brazing may not be performed properly. In order to avoid such a problem, in the conventional heat exchanger, a material that does not hinder brazing, specifically, a 1000-series or 3000-series aluminum alloy is selected as a material for forming a part. ..

一方、１０００番系や３０００番系のアルミニウム合金は、例えば５０００番系や７０００番系のアルミニウム合金と比較すると、強度が低い。そのため、部品を形成する材料として１０００番系や３０００番系のアルミニウム合金を用いる場合、内部を流れる流体の圧力に対する熱交換器の耐圧性を確保するために、部品の厚肉化が必須となっている。これが、熱交換器の重量の増加を招いている。特に、電気自動車等において電池を冷却するための熱交換器には大型の熱交換器が用いられるため、その重量の増加が顕著となり、車両の航続距離を低減させる要因の一つとなっている。 On the other hand, the 1000th series and 3000th series aluminum alloys have lower strength than, for example, the 5000th series and 7000th series aluminum alloys. Therefore, when a 1000th or 3000th aluminum alloy is used as the material for forming the parts, it is essential to thicken the parts in order to secure the pressure resistance of the heat exchanger against the pressure of the fluid flowing inside. ing. This has led to an increase in the weight of the heat exchanger. In particular, since a large heat exchanger is used as a heat exchanger for cooling a battery in an electric vehicle or the like, the increase in the weight is remarkable, which is one of the factors for reducing the cruising range of the vehicle.

なお、このような課題は、電池を冷却するための熱交換器に限らず、各種の熱交換器に共通する課題である。
本開示は、こうした実情に鑑みてなされたものであり、その目的は、耐圧性を確保しつつ、軽量化が可能な熱交換器を提供することにある。 It should be noted that such a problem is not limited to the heat exchanger for cooling the battery, but is a problem common to various heat exchangers.
The present disclosure has been made in view of such circumstances, and an object of the present disclosure is to provide a heat exchanger capable of reducing weight while ensuring pressure resistance.

上記課題を解決する熱交換器は、金属又は樹脂からなる複数の部品（３３，３４，６０，８０）が接合された接合部材（３０，９０）を有し、接合部材の内部に形成された流路を流れる流体と接合部材の外部の熱交換対象との間で熱交換が行われる。互いに接合される２つの部品を第１部品（３３，６０）及び第２部品（３４，８０）とするとき、第１部品及び第２部品は、接着剤（３５）を介して互いに接合されている。接着剤に対向する第１部品の表面には、第１部品と接着剤との界面を共有結合させる第１共有結合層（３６）が形成されている。接着剤に対向する第２部品の表面には、第２部品と接着剤との界面を共有結合させる第２共有結合層（３７）が形成されている。 The heat exchanger that solves the above problems has a joining member (30, 90) to which a plurality of parts (33, 34, 60, 80) made of metal or resin are joined, and is formed inside the joining member. Heat exchange is performed between the fluid flowing through the flow path and the heat exchange target outside the joining member. When the two parts to be joined to each other are the first part (33,60) and the second part (34,80), the first part and the second part are joined to each other via the adhesive (35). There is. A first covalent bond layer (36) that covalently bonds the interface between the first component and the adhesive is formed on the surface of the first component facing the adhesive. A second covalent bond layer (37) is formed on the surface of the second component facing the adhesive to covalently bond the interface between the second component and the adhesive.

この構成によれば、第１部品及び第２部品が接着剤を介して互いに接合されているため、第１部品及び第２部品を形成する材料の選定に関して、ろう付けの際に考慮すべき制約がない。したがって、第１部品及び第２部品の材料の選定の自由度を向上させることができるため、それらを形成する材料として、より強度の高い材料を選定することができる。そのため、内部を流れる流体の圧力に対する熱交換器の耐圧性を確保しつつ、第１部品及び第２部品を薄肉化することができる。結果的に、熱交換器を軽量化することが可能である。 According to this configuration, since the first part and the second part are joined to each other via an adhesive, there are restrictions to be considered when brazing regarding the selection of the material forming the first part and the second part. There is no. Therefore, since the degree of freedom in selecting the materials for the first component and the second component can be improved, a material having higher strength can be selected as the material for forming them. Therefore, the first component and the second component can be thinned while ensuring the pressure resistance of the heat exchanger with respect to the pressure of the fluid flowing inside. As a result, it is possible to reduce the weight of the heat exchanger.

なお、上記手段、特許請求の範囲に記載の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。 The reference numerals in parentheses described in the above means and claims are examples showing the correspondence with the specific means described in the embodiments described later.

本開示によれば、耐圧性を確保しつつ、軽量化が可能な熱交換器を提供できる。 According to the present disclosure, it is possible to provide a heat exchanger capable of reducing weight while ensuring pressure resistance.

図１は、第１実施形態の熱交換器の平面構造を模式的に示す図である。FIG. 1 is a diagram schematically showing a planar structure of the heat exchanger of the first embodiment. 図２は、第１実施形態の熱交換部材の断面構造を示す断面図である。FIG. 2 is a cross-sectional view showing a cross-sectional structure of the heat exchange member of the first embodiment. 図３は、第１実施形態の熱交換部材における第１部品及び第２部品の接合部分の断面構造を拡大した断面図である。FIG. 3 is an enlarged cross-sectional view of the cross-sectional structure of the joint portion of the first component and the second component in the heat exchange member of the first embodiment. 図４は、第１実施形態の変形例の熱交換部材の断面構造を示す断面図である。FIG. 4 is a cross-sectional view showing a cross-sectional structure of a heat exchange member of a modified example of the first embodiment. 図５は、第２実施形態の熱交換部材における第１部品及び第２部品の接合部分の断面構造を拡大した断面図である。FIG. 5 is an enlarged cross-sectional view of the cross-sectional structure of the joint portion of the first component and the second component in the heat exchange member of the second embodiment. 図６は、第２実施形態の熱交換器の製造工程の一部を示す断面図である。FIG. 6 is a cross-sectional view showing a part of the manufacturing process of the heat exchanger of the second embodiment. 図７は、第３実施形態の熱交換器の断面構造を示す断面図である。FIG. 7 is a cross-sectional view showing a cross-sectional structure of the heat exchanger of the third embodiment.

以下、熱交換器の実施形態について図面を参照しながら説明する。説明の理解を容易にするため、各図面において同一の構成要素に対しては可能な限り同一の符号を付して、重複する説明は省略する。
＜第１実施形態＞
はじめに、図１に示される第１実施形態の熱交換器１０について説明する。この熱交換器１０は、電気自動車に搭載された複数の電池５０を冷却する電池冷却器として用いられるものである。複数の電池５０は、電気自動車の動力源である電動機や、電気自動車に搭載されるその他の各種電気機器に電力を供給する。熱交換器１０は、タンク部材２０，２１と、複数の熱交換部材３０とを備えている。 Hereinafter, embodiments of the heat exchanger will be described with reference to the drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as much as possible in each drawing, and duplicate description is omitted.
<First Embodiment>
First, the heat exchanger 10 of the first embodiment shown in FIG. 1 will be described. The heat exchanger 10 is used as a battery cooler for cooling a plurality of batteries 50 mounted on an electric vehicle. The plurality of batteries 50 supply electric power to an electric motor that is a power source of an electric vehicle and various other electric devices mounted on the electric vehicle. The heat exchanger 10 includes tank members 20 and 21 and a plurality of heat exchange members 30.

熱交換部材３０は、矢印Ｙで示される方向に延びるように形成されている。熱交換部材３０の内部には、冷却流体が流れる流路Ｐｗ１０が形成されている。複数の熱交換部材３０は、矢印Ｘで示される方向に所定の間隔を空けて配置されている。矢印Ｘで示される方向は、矢印Ｙで示される方向に直交する方向である。 The heat exchange member 30 is formed so as to extend in the direction indicated by the arrow Y. Inside the heat exchange member 30, a flow path Pw10 through which a cooling fluid flows is formed. The plurality of heat exchange members 30 are arranged at predetermined intervals in the direction indicated by the arrow X. The direction indicated by the arrow X is a direction orthogonal to the direction indicated by the arrow Y.

複数の熱交換部材３０のうち、矢印Ｘで示される方向の一端に配置される端部熱交換部材３０ａには、その内部流路Ｐｗ１０を第１内部流路Ｐｗ１１及び第２内部流路Ｐｗ１２に仕切る仕切部３１が形成されている。仕切部３１の近傍における端部熱交換部材３０ａの外周面には、流入口３２及び流出口３３が突出するように形成されている。流入口３２は第１内部流路Ｐｗ１１に連通されている。流出口３３は第２内部流路Ｐｗ１２に連通されている。なお、以下では、複数の熱交換部材３０のうち、端部熱交換部材３０ａを除く熱交換部材３０を「熱交換部材３０ｂ」と称する。各熱交換部材３０ｂの外面には電池５０が設置される。 Of the plurality of heat exchange members 30, the end heat exchange member 30a arranged at one end in the direction indicated by the arrow X has an internal flow path Pw10 in the first internal flow path Pw11 and the second internal flow path Pw12. A partition portion 31 for partitioning is formed. The inflow port 32 and the outflow port 33 are formed so as to project on the outer peripheral surface of the end heat exchange member 30a in the vicinity of the partition portion 31. The inflow port 32 is communicated with the first internal flow path Pw11. The outlet 33 is communicated with the second internal flow path Pw12. In the following, among the plurality of heat exchange members 30, the heat exchange member 30 excluding the end heat exchange member 30a will be referred to as a "heat exchange member 30b". A battery 50 is installed on the outer surface of each heat exchange member 30b.

タンク部材２０，２１は、矢印Ｘで示される方向に延びるように形成されている。タンク部材２０，２１の内部には、冷却流体が流れる流路Ｐｗ２０，Ｐｗ２１がそれぞれ形成されている。タンク部材２０は、複数の熱交換部材３０のそれぞれの一端部に接合されるように設けられている。タンク部材２１は、複数の熱交換部材３０のそれぞれの他端部に接合されるように設けられている。タンク部材２０の内部流路Ｐｗ２０は、複数の熱交換部材３０のそれぞれの内部流路Ｐｗ１０の一端部に連通されている。タンク部材２１の内部流路Ｐｗ２１は、複数の熱交換部材３０のそれぞれの内部流路Ｐｗ１０の他端部に連通されている。 The tank members 20 and 21 are formed so as to extend in the direction indicated by the arrow X. Inside the tank members 20 and 21, flow paths Pw20 and Pw21 through which the cooling fluid flows are formed, respectively. The tank member 20 is provided so as to be joined to one end of each of the plurality of heat exchange members 30. The tank member 21 is provided so as to be joined to the other end of each of the plurality of heat exchange members 30. The internal flow path Pw20 of the tank member 20 is communicated with one end of each internal flow path Pw10 of the plurality of heat exchange members 30. The internal flow path Pw21 of the tank member 21 is communicated with the other end of each of the internal flow paths Pw10 of the plurality of heat exchange members 30.

この熱交換器１０では、流入口３２に冷却流体が供給される。流入口３２に供給される冷却流体は、端部熱交換部材３０ａの第１内部流路Ｐｗ１１を通じてタンク部材２０の内部流路Ｐｗ２０した流入した後、端部熱交換部材３０ａを除く複数の熱交換部材３０ｂのそれぞれの内部流路Ｐｗ１０に分配される。各熱交換部材３０ｂの内部流路Ｐｗ１０を通過した冷却流体は、タンク部材２０の内部流路Ｐｗ２１に集められた後、端部熱交換部材３０ａの第２内部流路Ｐｗ１２を通じて流出口３３から排出される。流出口３３から排出された冷却水は、例えば車両に搭載されたラジエータにおいて外気との熱交換により冷却された後、流入口３２に再び戻される。 In the heat exchanger 10, the cooling fluid is supplied to the inflow port 32. The cooling fluid supplied to the inflow port 32 flows into the internal flow path Pw20 of the tank member 20 through the first internal flow path Pw11 of the end heat exchange member 30a, and then a plurality of heat exchanges other than the end heat exchange member 30a. It is distributed to each internal flow path Pw10 of the member 30b. The cooling fluid that has passed through the internal flow path Pw10 of each heat exchange member 30b is collected in the internal flow path Pw21 of the tank member 20 and then discharged from the outflow port 33 through the second internal flow path Pw12 of the end heat exchange member 30a. Will be done. The cooling water discharged from the outflow port 33 is cooled by heat exchange with the outside air in a radiator mounted on the vehicle, for example, and then returned to the inflow port 32 again.

次に、熱交換部材３０の構造について詳しく説明する。
図２に示されるように、熱交換部材３０は、第１部品３３と第２部品３４とが接着剤３５を介して互いに接合された構造を有している。なお、本実施形態では、熱交換部材３０が、第１部品３３及び第２部品３４が接合された接合部材に相当する。また、熱交換部材３０の内部を流れる冷却流体が、接合部材の内部を流れる流体に相当し、電池５０が、接合部材の外部の熱交換対象に相当する。 Next, the structure of the heat exchange member 30 will be described in detail.
As shown in FIG. 2, the heat exchange member 30 has a structure in which the first component 33 and the second component 34 are joined to each other via an adhesive 35. In the present embodiment, the heat exchange member 30 corresponds to a joining member to which the first component 33 and the second component 34 are joined. Further, the cooling fluid flowing inside the heat exchange member 30 corresponds to the fluid flowing inside the joining member, and the battery 50 corresponds to the heat exchange target outside the joining member.

第２部品３４は、平板状に形成されている。第２部品３４は、アルミニウムにより形成されている。具体的には、第２部品３４は、２０００番系、５０００番系、６０００番系、７０００番系、及び８０００番系のいずれかのアルミニウム合金により形成されている。第２部品３４の一方の表面３４０は、電池５０が設置される設置面となっている。第２部品３４の他方の表面３４１には、接着剤３５を介して第１部品３３が接着されている。 The second component 34 is formed in a flat plate shape. The second component 34 is made of aluminum. Specifically, the second component 34 is formed of any one of 2000 series, 5000 series, 6000 series, 7000 series, and 8000 series aluminum alloy. One surface 340 of the second component 34 is an installation surface on which the battery 50 is installed. The first component 33 is adhered to the other surface 341 of the second component 34 via an adhesive 35.

第１部品３３は、矢印Ｙで示される方向に直交する断面形状が凹字状をなすように形成されている。第１部品３３は、第２部品３４と同様に、２０００番系、５０００番系、６０００番系、７０００番系、及び８０００番系のいずれかのアルミニウム合金により形成されている。第１部品３３の開口部の外周部分にはフランジ部３３０が形成されている。フランジ部３３０の表面３３０ａは、接着剤３５を介して第１部品３３に接着されている。第１部品３３の内壁面３３１、第２部品の表面３４１、及び接着剤３５によって囲まれる空間により、熱交換部材３０の内部流路Ｐｗ１０が形成されている。 The first component 33 is formed so that the cross-sectional shape orthogonal to the direction indicated by the arrow Y is concave. Like the second part 34, the first part 33 is formed of any one of 2000 series, 5000 series, 6000 series, 7000 series, and 8000 series aluminum alloy. A flange portion 330 is formed on the outer peripheral portion of the opening of the first component 33. The surface 330a of the flange portion 330 is adhered to the first component 33 via the adhesive 35. The internal flow path Pw10 of the heat exchange member 30 is formed by the inner wall surface 331 of the first component 33, the surface 341 of the second component, and the space surrounded by the adhesive 35.

接着剤３５は、第１部品３３のフランジ部３３０の表面３３０ａと第２部品３４の表面３４１との間に設けられており、それらを接合している。接着剤３５としては、シリコン系接着剤が用いられている。
図３に示されるように、第１部品３３において接着剤３５に対向するフランジ部３３０の表面３３０ａには、第１共有結合層３６が形成されている。第１共有結合層３６は、第１部品３３と接着剤３５との界面を共有結合させることにより、それらを接合させている。同様に、第２部品３４において接着剤３５に対向する表面３４１には第２共有結合層３７が形成されている。第２共有結合層３７は、第２部品３４と接着剤３５との界面を共有結合させることにより、それらを接合させている。第１共有結合層３６及び第２共有結合層３７を形成する材料としては、ケイ酸ガラス層、より詳しくはアルミノケイ酸ガラス層が用いられている。 The adhesive 35 is provided between the surface 330a of the flange portion 330 of the first component 33 and the surface 341 of the second component 34, and joins them. As the adhesive 35, a silicon-based adhesive is used.
As shown in FIG. 3, the first covalent bond layer 36 is formed on the surface 330a of the flange portion 330 facing the adhesive 35 in the first component 33. The first covalent bond layer 36 joins them by covalently bonding the interface between the first component 33 and the adhesive 35. Similarly, a second covalent bond layer 37 is formed on the surface 341 of the second component 34 facing the adhesive 35. The second covalent bond layer 37 joins them by covalently bonding the interface between the second component 34 and the adhesive 35. As a material for forming the first covalent bond layer 36 and the second covalent bond layer 37, a silicate glass layer, more specifically, an aluminosilicate glass layer is used.

次に、熱交換部材３０の製造方法について説明する。
熱交換部材３０を製造する際には、まず、凹字状の第１部品３３、及び平板状の第２部品３４を成形した後、第１部品３３の表面３３０ａに第１共有結合層３６を形成するとともに、第２部品３４の表面３４１に第２共有結合層３７を形成する。具体的には、共有結合層３６，３７に対応する液体を用いて、ディッピング、シャワー塗布、及びロールコート等により各部品３３，３４に共有結合層３６，３７をそれぞれ形成する。その後、第１部品３３のフランジ部３３０と第２部品３４とを接着剤３５を介して接着させることにより、熱交換部材３０の製造が完了する。 Next, a method of manufacturing the heat exchange member 30 will be described.
When manufacturing the heat exchange member 30, first, the concave first part 33 and the flat plate-shaped second part 34 are molded, and then the first covalent bond layer 36 is formed on the surface 330a of the first part 33. At the same time, the second covalent bond layer 37 is formed on the surface 341 of the second component 34. Specifically, the covalent bond layers 36 and 37 are formed on the parts 33 and 34 by dipping, shower coating, roll coating and the like using the liquid corresponding to the covalent bond layers 36 and 37, respectively. After that, the flange portion 330 of the first component 33 and the second component 34 are adhered to each other via the adhesive 35 to complete the production of the heat exchange member 30.

次に、本実施形態の熱交換器１０の作用及び効果について説明する。
本実施形態の熱交換器１０では、第１部品３３及び第２部品３４が接着剤３５を介して互いに接合されているため、第１部品３３及び第２部品３４を形成する材料の選定に関して、ろう付けの際に考慮すべき制約がない。したがって、第１部品３３及び第２部品３４の材料の選定の自由度を向上させることができるため、それらを形成する材料として、より強度の高い材料を選定することができる。具体的には、第１部品３３及び第２部品３４の材料として、従来の１０００番系や３０００番系のアルミニウム合金に代えて、２０００番系、５０００番系、６０００番系、７０００番系、及び８０００番系のいずれかのアルミニウム合金を用いることができる。そのため、内部を流れる冷却流体の圧力に対する熱交換器１０の耐圧性を確保しつつ、第１部品３３及び第２部品３４を薄肉化することができる。結果的に、熱交換器１０を軽量化することができる。 Next, the operation and effect of the heat exchanger 10 of the present embodiment will be described.
In the heat exchanger 10 of the present embodiment, since the first component 33 and the second component 34 are joined to each other via the adhesive 35, regarding the selection of the material forming the first component 33 and the second component 34, There are no restrictions to consider when brazing. Therefore, since the degree of freedom in selecting the materials for the first component 33 and the second component 34 can be improved, a material having higher strength can be selected as the material for forming them. Specifically, as the material of the first part 33 and the second part 34, instead of the conventional 1000 series and 3000 series aluminum alloys, 2000 series, 5000 series, 6000 series, 7000 series, And any aluminum alloy of the 8000 series can be used. Therefore, the first component 33 and the second component 34 can be thinned while ensuring the pressure resistance of the heat exchanger 10 with respect to the pressure of the cooling fluid flowing inside. As a result, the heat exchanger 10 can be made lighter.

（変形例）
次に、第１実施形態の熱交換器１０の変形例について説明する。
図４に示されるように、本変形例の熱交換器１０では、第１部品３３の底面３３２に電池５１が更に配置されている。このような構成によれば、熱交換器１０に設置可能な電池の個数を増加させることができる、換言すれば熱交換器１０により冷却可能な電池の個数を増加させることが可能である。 (Modification example)
Next, a modification of the heat exchanger 10 of the first embodiment will be described.
As shown in FIG. 4, in the heat exchanger 10 of this modified example, the battery 51 is further arranged on the bottom surface 332 of the first component 33. According to such a configuration, the number of batteries that can be installed in the heat exchanger 10 can be increased, in other words, the number of batteries that can be cooled by the heat exchanger 10 can be increased.

＜第２実施形態＞
次に、第２実施形態の熱交換器１０について説明する。以下、第１実施形態の熱交換器１０との相違点を中心に説明する。
図５に示されるように、本実施形態の第１部品３３のフランジ部３３０には、段差部３３３と、突出部３３４とが形成されている。 <Second Embodiment>
Next, the heat exchanger 10 of the second embodiment will be described. Hereinafter, the differences from the heat exchanger 10 of the first embodiment will be mainly described.
As shown in FIG. 5, the flange portion 330 of the first component 33 of the present embodiment is formed with a stepped portion 333 and a protruding portion 334.

段差部３３３は、第２部品３４と所定の隙間を有して配置され、且つ第２部品３４の表面３４１と略平行に配置されている部分である。
突出部３３４は、段差部３３３の略中央から第２部品３４に向かって突出するように形成されている。突出部３３４の先端面３３４ａは、第２部品３４の表面３４１に対して略平行な平坦面となっている。突出部３３４の先端面３３４ａは接着剤３５を介して第２部品３４の表面３４１に接着されている。 The step portion 333 is a portion that is arranged with a predetermined gap from the second component 34 and is arranged substantially parallel to the surface 341 of the second component 34.
The projecting portion 334 is formed so as to project from substantially the center of the step portion 333 toward the second component 34. The tip surface 334a of the protrusion 334 is a flat surface substantially parallel to the surface 341 of the second component 34. The tip surface 334a of the protrusion 334 is adhered to the surface 341 of the second component 34 via the adhesive 35.

図５に示されるように、第１部品３３の段差部３３３と第２部品３４の表面３４１との間の隙間には、接着剤３５が配置されている。接着剤３５は、突出部３３４の外周部分に配置されている。接着剤３５は、第１部品３３の段差部３３３と第２部品３４の表面３４１とを接着させることにより、それらを接合させている。接着剤３５の外面には、円弧状のフィレット３３５が形成されている。 As shown in FIG. 5, the adhesive 35 is arranged in the gap between the stepped portion 333 of the first component 33 and the surface 341 of the second component 34. The adhesive 35 is arranged on the outer peripheral portion of the protruding portion 334. The adhesive 35 joins the stepped portion 333 of the first component 33 and the surface 341 of the second component 34 by adhering them. An arcuate fillet 335 is formed on the outer surface of the adhesive 35.

なお、接着剤３５を介した突出部３３４の先端面３３４ａと第２部品３４の表面３４１との接合構造、並びに接着剤３５を介した第１部品３３の段差部３３３と第２部品３４の表面３４１との接合構造には、図３に示される構造と同様の構造が採用されているため、その詳細な説明は割愛する。 The joint structure between the tip surface 334a of the protruding portion 334 via the adhesive 35 and the surface 341 of the second component 34, and the stepped portion 333 of the first component 33 and the surface of the second component 34 via the adhesive 35. Since a structure similar to the structure shown in FIG. 3 is adopted for the joint structure with 341, a detailed description thereof will be omitted.

次に、本実施形態の熱交換器１０の製造方法について説明する。
本実施形態の熱交換器１０を製造する際には、まず、第１部品３３及び第２部品３４を成形した後、第１部品３３の表面３３０ａに第１共有結合層３６を形成するとともに、第２部品３４の表面３４１に第２共有結合層３７を形成する。そして、図６に示されるように、第１部品３３の突出部３３４の先端面３３４ａに接着剤３５を塗布する。その後、第１部品３３の突出部３３４の先端面３３４ａに第２部品３４を載せることにより、接着剤３５を介して第１部品３３及び第２部品３４を接合させる。その際、接着剤３５の外面に図５に示されるようなフィレット３３５が形成されるように、第１部品３３の突出部３３４の高さＨが予め設定されている。 Next, a method of manufacturing the heat exchanger 10 of the present embodiment will be described.
When manufacturing the heat exchanger 10 of the present embodiment, first, the first component 33 and the second component 34 are molded, and then the first covalent bond layer 36 is formed on the surface 330a of the first component 33, and the first covalent bond layer 36 is formed. A second covalent bond layer 37 is formed on the surface 341 of the second component 34. Then, as shown in FIG. 6, the adhesive 35 is applied to the tip surface 334a of the protruding portion 334 of the first component 33. After that, the second component 34 is placed on the tip surface 334a of the protruding portion 334 of the first component 33, so that the first component 33 and the second component 34 are joined via the adhesive 35. At that time, the height H of the protruding portion 334 of the first component 33 is preset so that the fillet 335 as shown in FIG. 5 is formed on the outer surface of the adhesive 35.

次に、本実施形態の熱交換器１０の作用及び効果について説明する。
本実施形態の熱交換器１０では、図５に示されるように、第１部品３３の突出部３３４が接着剤３５を介して第２部品３４に接合されている。このような構造によれば、第１部品３３の突出部３３４の長さＬを適宜調整することにより、第１部品３３と第２部品３４との接着部分の長さを任意に設定することができる。よって、第１部品３３の突出部３３４の長さＬを、接着に必要な長さ以上の長さに設定すれば、接着剤３５を介した第１部品３３及び第２部品３４の接合強度を確保することができる。 Next, the operation and effect of the heat exchanger 10 of the present embodiment will be described.
In the heat exchanger 10 of the present embodiment, as shown in FIG. 5, the protruding portion 334 of the first component 33 is joined to the second component 34 via the adhesive 35. According to such a structure, the length of the bonded portion between the first component 33 and the second component 34 can be arbitrarily set by appropriately adjusting the length L of the protruding portion 334 of the first component 33. it can. Therefore, if the length L of the protruding portion 334 of the first component 33 is set to a length equal to or longer than the length required for adhesion, the bonding strength of the first component 33 and the second component 34 via the adhesive 35 can be increased. Can be secured.

一方、このような熱交換器１０では、例えば冷却液体の温度変化により熱交換部材３０が伸張変形及び収縮変形する。このような熱交換部材３０の変形により接着剤３５の外面に局所的な応力が加わると、接着剤３５が破損して、結果として第１部品３３及び第２部品３４の接合が解除される可能性がある。この点、本実施形態の熱交換部材３０では、接着剤３５の外面にフィレット３３５が形成されているため、接着剤３５の外面に局所的な応力が作用し難くなっている。したがって、熱交換部材３０が伸張変形及び収縮変形した際に接着剤３５が破損するような状況が生じ難いため、第１部品３３及び第２部品３４が接合されている状態を維持し易くなる。 On the other hand, in such a heat exchanger 10, for example, the heat exchange member 30 is stretched and contracted due to a temperature change of the cooling liquid. When a local stress is applied to the outer surface of the adhesive 35 due to such deformation of the heat exchange member 30, the adhesive 35 may be damaged, and as a result, the bonding of the first component 33 and the second component 34 may be released. There is sex. In this respect, in the heat exchange member 30 of the present embodiment, since the fillet 335 is formed on the outer surface of the adhesive 35, it is difficult for local stress to act on the outer surface of the adhesive 35. Therefore, it is unlikely that the adhesive 35 will be damaged when the heat exchange member 30 is stretched or contracted, so that it is easy to maintain the state in which the first component 33 and the second component 34 are joined.

＜第３実施形態＞
次に、第３実施形態の熱交換器１０について説明する。
図７に示されるように、本実施形態の熱交換器１０は、２重管式内部熱交換器である。熱交換器１０は、第１管部材６０と、第２管部材７０と、流入管８０とを備えている。第１管部材６０、第２管部材７０、及び流入管８０を形成する材料としては、第１実施形態の第１部品３３及び第２部品３４に採用される材料と同一の材料を用いることが可能である。 <Third Embodiment>
Next, the heat exchanger 10 of the third embodiment will be described.
As shown in FIG. 7, the heat exchanger 10 of the present embodiment is a double-tube internal heat exchanger. The heat exchanger 10 includes a first pipe member 60, a second pipe member 70, and an inflow pipe 80. As the material for forming the first pipe member 60, the second pipe member 70, and the inflow pipe 80, the same material as that used for the first component 33 and the second component 34 of the first embodiment may be used. It is possible.

第１管部材６０は、軸線ｍを中心として円環状に形成されている。第１管部材６０の内部空間は、第１流体が流れている第１内部流路Ｐｗ３１を構成している。
第２管部材７０も、軸線ｍを中心として円環状に形成されている。第２管部材７０は、第１管部材６０よりも大きい内径を有しており、その内部に第１管部材６０を収容している。第２管部材７０の一端部は、第１管部材６０の外周面に接合されている。第２管部材７０の内周面と第１管部材６０の外周面とによって囲まれる空間により、第２流体が流れる第２内部流路Ｐｗ３２が構成されている。 The first pipe member 60 is formed in an annular shape about the axis m. The internal space of the first pipe member 60 constitutes a first internal flow path Pw31 through which the first fluid flows.
The second pipe member 70 is also formed in an annular shape about the axis m. The second pipe member 70 has an inner diameter larger than that of the first pipe member 60, and the first pipe member 60 is housed therein. One end of the second pipe member 70 is joined to the outer peripheral surface of the first pipe member 60. The space surrounded by the inner peripheral surface of the second pipe member 70 and the outer peripheral surface of the first pipe member 60 constitutes a second internal flow path Pw32 through which the second fluid flows.

この熱交換器１０では、第１内部流路Ｐｗ３１を流れる第１流体と、第２内部流路Ｐｗ３２を流れる第２流体との間で熱交換が行われる。
第１管部材６０の一端部は、第２管部材７０の一端部から突出している。この第１管部材６０の一端部には、第１管部材６０に第１流体を流入させるための流入管８０が接合されている。具体的には、流入管８０の一端部の内周面が第１管部材６０の一端部の外周面に接着剤３５を介して接合されている。なお、接着剤３５を介した流入管８０及び第１管部材６０の接合構造には、図３に示される構造と同様の構造が採用されているため、その詳細な説明は割愛する。 In this heat exchanger 10, heat exchange is performed between the first fluid flowing through the first internal flow path Pw31 and the second fluid flowing through the second internal flow path Pw32.
One end of the first pipe member 60 projects from one end of the second pipe member 70. An inflow pipe 80 for allowing the first fluid to flow into the first pipe member 60 is joined to one end of the first pipe member 60. Specifically, the inner peripheral surface of one end of the inflow pipe 80 is joined to the outer peripheral surface of one end of the first pipe member 60 via an adhesive 35. Since the structure similar to the structure shown in FIG. 3 is adopted for the joint structure of the inflow pipe 80 and the first pipe member 60 via the adhesive 35, a detailed description thereof will be omitted.

本実施形態では、互いに接合された第１管部材６０及び流入管８０が接合部材９０に相当し、第１管部材６０及び流入管８０が接合部材を構成する部品に相当する。また、第１管部材６０及び流入管８０の内部を流れる第１流体が、接合部材の内部を流れる流体に相当し、第２流体が、接合部材の外部の熱交換対象に相当する。 In the present embodiment, the first pipe member 60 and the inflow pipe 80 joined to each other correspond to the joining member 90, and the first pipe member 60 and the inflow pipe 80 correspond to the parts constituting the joining member. Further, the first fluid flowing inside the first pipe member 60 and the inflow pipe 80 corresponds to the fluid flowing inside the joining member, and the second fluid corresponds to the heat exchange target outside the joining member.

図７に示されるような構造を有する本実施形態の熱交換器１０であっても、第１実施形態の熱交換器１０と同一又は類似の作用及び効果を得ることが可能である。
＜他の実施形態＞
なお、各実施形態は、以下の形態にて実施することもできる。 Even the heat exchanger 10 of the present embodiment having the structure as shown in FIG. 7 can obtain the same or similar operation and effect as the heat exchanger 10 of the first embodiment.
<Other embodiments>
In addition, each embodiment can also be implemented in the following embodiments.

・第１及び第２実施形態の熱交換部材３０の第１部品３３及び第２部品３４は、アルミニウムや鉄、ステンレス鋼等の金属、あるいは樹脂により形成されていればよい。第３実施形態の第１管部材６０、第２管部材７０、及び流入管８０に関しても同様である。
・各実施形態の接着剤３５としては、シリコン系接着剤に限らず、エポキシ系接着剤、ポリウレタン系接着剤、ポリエステル系接着剤、メラニン系接着剤、及びユリア樹脂系接着剤等を用いることが可能である。 -The first component 33 and the second component 34 of the heat exchange member 30 of the first and second embodiments may be formed of a metal such as aluminum, iron, stainless steel, or a resin. The same applies to the first pipe member 60, the second pipe member 70, and the inflow pipe 80 of the third embodiment.
-The adhesive 35 of each embodiment is not limited to silicon-based adhesives, but epoxy-based adhesives, polyurethane-based adhesives, polyester-based adhesives, melanin-based adhesives, urea resin-based adhesives, and the like can be used. It is possible.

・本開示は上記の具体例に限定されるものではない。上記の具体例に、当業者が適宜設計変更を加えたものも、本開示の特徴を備えている限り、本開示の範囲に包含される。前述した各具体例が備える各要素、及びその配置、条件、形状等は、例示したものに限定されるわけではなく適宜変更することができる。前述した各具体例が備える各要素は、技術的な矛盾が生じない限り、適宜組み合わせを変えることができる。 -The present disclosure is not limited to the above specific examples. Specific examples described above with appropriate design changes by those skilled in the art are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the above-mentioned specific examples, and their arrangement, conditions, shape, and the like are not limited to those illustrated, and can be changed as appropriate. The combinations of the elements included in each of the above-mentioned specific examples can be appropriately changed as long as there is no technical contradiction.

１０：熱交換器
３０：熱交換部材（接合部材）
３３：第１部品
３４：第２部品
３５：接着剤
３６：第１共有結合層
３７：第２共有結合層
６０：第１管部材（第１部品）
８０：流入管（第２部品）
９０：接合部材
３３３：段差部
３３４：突出部
３３５：フィレット 10: Heat exchanger 30: Heat exchange member (joining member)
33: 1st part 34: 2nd part 35: Adhesive 36: 1st covalent bond layer 37: 2nd covalent bond layer 60: 1st pipe member (1st part)
80: Inflow pipe (second part)
90: Joining member 333: Step portion 334: Protruding portion 335: Fillet

Claims (8)

金属又は樹脂からなる複数の部品（３３，３４，６０，８０）が接合された接合部材（３０，９０）を有し、前記接合部材の内部に形成された流路を流れる流体と前記接合部材の外部の熱交換対象との間で熱交換が行われる熱交換器であって、
互いに接合される２つの前記部品を第１部品（３３，６０）及び第２部品（３４，８０）とするとき、
前記第１部品及び前記第２部品は、接着剤（３５）を介して互いに接合されており、
前記接着剤に対向する前記第１部品の表面には、前記第１部品と前記接着剤との界面を共有結合させる第１共有結合層（３６）が形成され、
前記接着剤に対向する前記第２部品の表面には、前記第２部品と前記接着剤との界面を共有結合させる第２共有結合層（３７）が形成されている
熱交換器。 It has a joining member (30, 90) to which a plurality of parts (33, 34, 60, 80) made of metal or resin are joined, and a fluid flowing through a flow path formed inside the joining member and the joining member. A heat exchanger that exchanges heat with an external heat exchange target.
When the two parts joined to each other are the first part (33,60) and the second part (34,80),
The first part and the second part are joined to each other via an adhesive (35).
On the surface of the first component facing the adhesive, a first covalent bond layer (36) for covalently bonding the interface between the first component and the adhesive is formed.
A heat exchanger in which a second covalent bond layer (37) for covalently bonding the interface between the second component and the adhesive is formed on the surface of the second component facing the adhesive. 前記第１共有結合層及び前記第２共有結合層は、ケイ酸ガラス層からなる
請求項１に記載の熱交換器。 The heat exchanger according to claim 1, wherein the first covalent bond layer and the second covalent bond layer are made of a silicate glass layer. 前記第１共有結合層及び前記第２共有結合層は、アルミノケイ酸ガラス層からなる
請求項２に記載の熱交換器。 The heat exchanger according to claim 2, wherein the first covalent bond layer and the second covalent bond layer are made of an aluminosilicate glass layer. 前記接着剤は、シリコン系接着剤、エポキシ系接着剤、ポリウレタン系接着剤、ポリエステル系接着剤、メラニン系接着剤、及びユリア樹脂系接着剤のいずれかからなる
請求項１〜３のいずれか一項に記載の熱交換器。 The adhesive is any one of claims 1 to 3, which comprises any of a silicon-based adhesive, an epoxy-based adhesive, a polyurethane-based adhesive, a polyester-based adhesive, a melanin-based adhesive, and a urea resin-based adhesive. The heat exchanger described in the section. 前記部品は、アルミニウム、鉄、及びステンレス鋼のいずれかにより形成されている
請求項１〜４のいずれか一項に記載の熱交換器。 The heat exchanger according to any one of claims 1 to 4, wherein the component is made of any one of aluminum, iron, and stainless steel. 前記部品は、２０００番系、５０００番系、６０００番系、７０００番系、及び８０００番系のいずれかのアルミニウム合金により形成されている
請求項１〜４のいずれか一項に記載の熱交換器。 The heat exchange according to any one of claims 1 to 4, wherein the component is made of an aluminum alloy of any one of 2000 series, 5000 series, 6000 series, 7000 series, and 8000 series. vessel. 前記第２部品（３４）は、平板状に形成されており、
前記第１部品（３３）は、前記第１部品と所定の隙間を有して配置される段差部（３３３）と、前記段差部から前記第２部品に向かって突出する突出部（３３４）とを有しており、
前記突出部が前記接着剤を介して前記第２部品に接合されている
請求項１〜６のいずれか一項に記載の熱交換器。 The second component (34) is formed in a flat plate shape.
The first component (33) includes a stepped portion (333) arranged with a predetermined gap from the first component, and a protruding portion (334) protruding from the stepped portion toward the second component. Have and
The heat exchanger according to any one of claims 1 to 6, wherein the protruding portion is joined to the second component via the adhesive. 前記接着剤は、前記突出部の外周部分であって、且つ前記第１部品と前記第２部品の前記段差部との間に形成される隙間に形成されており、
前記接着剤の外面には、フィレット（３３５）が形成されている
請求項７に記載の熱交換器。 The adhesive is formed in the outer peripheral portion of the protruding portion and in the gap formed between the first component and the stepped portion of the second component.
The heat exchanger according to claim 7, wherein a fillet (335) is formed on the outer surface of the adhesive.
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