JP6927169B2 - Batteries - Google Patents

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JP6927169B2
JP6927169B2 JP2018147794A JP2018147794A JP6927169B2 JP 6927169 B2 JP6927169 B2 JP 6927169B2 JP 2018147794 A JP2018147794 A JP 2018147794A JP 2018147794 A JP2018147794 A JP 2018147794A JP 6927169 B2 JP6927169 B2 JP 6927169B2
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battery
heat medium
restraint
passage
cell
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JP2020024814A5 (en
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大樹 内山
大樹 内山
柴田　大輔
大輔 柴田
周平 吉田
周平 吉田
啓善 山本
啓善 山本
久 梅本
久 梅本
諒 太田
諒 太田
雅貴 内山
雅貴 内山
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Denso Corp
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Denso Corp
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Priority to CN201980032614.9A priority patent/CN112136244B/en
Priority to PCT/JP2019/027737 priority patent/WO2020031619A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/6561—Gases
    • 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
    • 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
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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

Description

この明細書における開示は、組電池に関する。 The disclosure herein relates to an assembled battery.

特許文献１には、角形電池を冷却する冷媒が流れる冷却パイプを内蔵する冷却プレートを有するバッテリシステムが記載されている。冷却プレートは、複数の角形電池が積層状体に固定されてなる電池ブロックの表面であって、電極端子の反対側の表面である下面に熱結合状態で設置されている。 Patent Document 1 describes a battery system having a cooling plate including a cooling pipe through which a refrigerant for cooling a square battery flows. The cooling plate is the surface of a battery block in which a plurality of square batteries are fixed to a laminated body, and is installed in a heat-bonded state on the lower surface, which is the surface opposite to the electrode terminals.

特許第５１８３１７２号公報Japanese Patent No. 5183172

特許文献１によれば、構成部品の多機能性の観点においてバッテリシステムにはさらなる改良が求められている。 According to Patent Document 1, further improvement is required for the battery system from the viewpoint of the multi-functionality of the components.

この明細書における開示の目的は、構成部品の多機能性が図れる組電池を提供することである。 An object of the disclosure in this specification is to provide an assembled battery capable of achieving multi-functionality of components.

この明細書に開示された複数の態様は、それぞれの目的を達成するために、互いに異なる技術的手段を採用する。また、特許請求の範囲およびこの項に記載した括弧内の符号は、一つの態様として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って、技術的範囲を限定するものではない。 The plurality of aspects disclosed herein employ different technical means to achieve their respective objectives. Further, the scope of claims and the reference numerals in parentheses described in this section are examples showing the correspondence with the specific means described in the embodiment described later as one embodiment, and limit the technical scope. is not it.

開示された組電池の一つは、電池積層体を形成する複数の電池セル（２）と、内部通路を流通する熱媒体と電池セルとが熱交換するように設けられた熱媒体通路部材（１０４；２０４；３０４）と、熱伝導性を有し、電池積層体に対して積層方向の両側から拘束力を作用させるように電池積層体の両側に電池セルに対して熱伝達可能に設けられた一組の拘束部材（３；４４，４５）と、を備え、熱媒体通路部材の内部通路は、一組の拘束部材のうち少なくとも一つの拘束部材の内部に設けられた拘束部材内通路（４０，４２）に連結されており、
熱媒体通路部材は、積層方向に隣り合う電池セルと電池セルの間に介在し内部通路を流通する熱媒体と電池セルとが熱交換するセル間部（１４０）と、積層方向に隣り合うセル間部とセル間部とを連結し内部通路を熱媒体が流れる連結部（１４１）と、を備えている。 One of the disclosed assembled batteries is a plurality of battery cells (2) forming a battery laminate, and a heat medium passage member (heat medium passage member) provided so as to exchange heat between the heat medium flowing through the internal passage and the battery cell. 1 04; 204; 304) has a thermal conductivity, provided that heat can be transmitted to the battery cell to the opposite sides of the cell stack so as to exert a restraining force from both sides in the stacking direction with respect to battery stack A set of restraint members (3; 44, 45) is provided, and the internal passage of the heat medium passage member is a passage in the restraint member provided inside at least one of the restraint members in the set of restraint members. It is connected to (40, 42) and
The heat medium passage member includes a cell-to-cell portion (140) that is interposed between the battery cells adjacent to each other in the stacking direction and exchanges heat between the heat medium and the battery cells flowing through the internal passage, and cells adjacent to each other in the stacking direction. It is provided with a connecting portion (141) that connects the inter-cell portion and the inter-cell portion and allows the heat medium to flow through the internal passage.

この組電池によれば、熱媒体は熱媒体通路部材の内部通路を流通して電池セルと熱交換するとともに、拘束部材内通路にも流通して拘束部材に隣接している電池セルと熱交換する。これにより、拘束部材は、複数の電池セルを積層方向に拘束する拘束機能と電池セルを温度調整可能な温調機能とを併せ持っている。したがって、構成部品の多機能性が図れる組電池を提供できる。
開示された組電池の一つは、電池積層体を形成する複数の電池セル（２）と、内部通路を流通する熱媒体と電池セルとが熱交換するように設けられた熱媒体通路部材（３０４）と、熱伝導性を有し、電池積層体に対して積層方向の両側から拘束力を作用させるように電池積層体の両側に電池セルに対して熱伝達可能に設けられた一組の拘束部材（４４，４５）と、を備え、
熱媒体通路部材の内部通路は、一組の拘束部材のそれぞれの内部に設けられた拘束部材内通路に連結されており、一組の拘束部材は、熱媒体通路部材を形成する管が電池積層体の両側においてそれぞれ複数回折り返されて積層された積層管部によって形成されている。 According to this assembled battery, the heat medium circulates in the internal passage of the heat medium passage member to exchange heat with the battery cell, and also circulates in the passage inside the restraint member to exchange heat with the battery cell adjacent to the restraint member. do. As a result, the restraint member has both a restraint function of restraining a plurality of battery cells in the stacking direction and a temperature control function of adjusting the temperature of the battery cells. Therefore, it is possible to provide an assembled battery capable of achieving multi-functionality of components.
One of the disclosed assembled batteries is a plurality of battery cells (2) forming a battery laminate, and a heat medium passage member (heat medium passage member) provided so as to exchange heat between the heat medium flowing through the internal passage and the battery cell. 304) and a set that has thermal conductivity and is provided on both sides of the battery laminate so as to transfer heat to the battery cells so as to exert a binding force on the battery laminate from both sides in the stacking direction. With restraint members (44, 45)
The internal passage of the heat medium passage member is connected to the internal passage of the restraint member provided inside each of the set of restraint members, and in the set of restraint members, the pipe forming the heat medium passage member is battery-stacked. It is formed by laminated tube portions that are folded and laminated on both sides of the body.

第１実施形態の組電池を示した斜視図である。It is a perspective view which showed the assembled battery of 1st Embodiment. 第１実施形態の熱媒体通路部材を示した斜視図である。It is a perspective view which showed the heat medium passage member of 1st Embodiment. 第１実施形態において拘束プレート内の通路と配管との接続に関する構成を示した部分断面図である。It is a partial cross-sectional view which showed the structure about the connection between the passage in the restraint plate and a pipe in 1st Embodiment. 第２実施形態の組電池を示した部分平面図である。It is a partial plan view which showed the assembled battery of 2nd Embodiment. 第２実施形態における熱媒体通路部材を示した斜視図である。It is a perspective view which showed the heat medium passage member in 2nd Embodiment. 第３実施形態の組電池を示した部分平面図である。It is a partial plan view which showed the assembled battery of 3rd Embodiment. 第４実施形態の組電池を示した部分平面図である。It is a partial plan view which showed the assembled battery of 4th Embodiment.

以下に、図面を参照しながら本開示を実施するための複数の形態を説明する。各形態において先行する形態で説明した事項に対応する部分には同一の参照符号を付して重複する説明を省略する場合がある。各形態において構成の一部のみを説明している場合は、構成の他の部分については先行して説明した他の形態を適用することができる。各実施形態で具体的に組み合わせが可能であることを明示している部分同士の組み合わせばかりではなく、特に組み合わせに支障が生じなければ、明示していなくても実施形態同士を部分的に組み合せることも可能である。 Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each form, the same reference numerals may be attached to the parts corresponding to the matters described in the preceding forms, and duplicate explanations may be omitted. When only a part of the configuration is described in each form, the other forms described above can be applied to the other parts of the configuration. Not only the combinations of the parts that clearly indicate that they can be combined in each embodiment, but also the parts of the embodiments that are not explicitly combined unless there is a problem in the combination. It is also possible.

（第１実施形態）
第１実施形態の組電池１００は、積層設置された複数の電池セル２と熱媒体通路部材４の内部通路を流通する熱媒体とが熱交換する構成を備える装置である。熱媒体は、冷却したり加熱したりして電池セルを温度調節可能な温調流体である。熱媒体は、気体、液体または気液混合の流体であり、あるいは使用時に状態変化を伴わない流体でもよいし相変化を伴う流体であってもよい。組電池１００は、例えば内燃機関と電池に充電された電力によって駆動されるモータとを組み合わせて走行駆動源とするハイブリッド自動車、モータを走行駆動源とする電気自動車等の電動車に搭載される。組電池１００に含まれる複数の電池セル２は、例えばニッケル水素二次電池、リチウムイオン二次電池、有機ラジカル電池、全固体電池などである。 (First Embodiment)
The assembled battery 100 of the first embodiment is a device having a configuration in which a plurality of battery cells 2 stacked and installed and a heat medium flowing through the internal passage of the heat medium passage member 4 exchange heat. The heat medium is a temperature control fluid whose temperature can be controlled by cooling or heating the battery cell. The heat medium may be a gas, liquid, or gas-liquid mixed fluid, or may be a fluid that does not undergo a state change during use or a fluid that undergoes a phase change. The assembled battery 100 is mounted on an electric vehicle such as a hybrid vehicle in which an internal combustion engine and a motor driven by electric power charged in the battery are combined and used as a traveling drive source, and an electric vehicle in which the motor is used as a traveling drive source. The plurality of battery cells 2 included in the assembled battery 100 are, for example, a nickel hydrogen secondary battery, a lithium ion secondary battery, an organic radical battery, an all-solid-state battery, and the like.

第１実施形態について図１〜図３を参照して説明する。各図において、電池セル２の厚さ方向は電池積層体における電池セル２の積層方向であり、電池積層方向ともいう。積層方向と上下方向との両方に直交する方向は、電池セル２の幅方向または横方向である。積層方向における一方側は、電池積層体に対して総体的に流れる熱媒体の上流側であり、他方側は下流側である。 The first embodiment will be described with reference to FIGS. 1 to 3. In each figure, the thickness direction of the battery cells 2 is the stacking direction of the battery cells 2 in the battery stack, and is also referred to as the battery stacking direction. The direction orthogonal to both the stacking direction and the vertical direction is the width direction or the lateral direction of the battery cell 2. One side in the stacking direction is the upstream side of the heat medium that generally flows with respect to the battery stack, and the other side is the downstream side.

組電池１００は、複数個の電池セル２の充電および放電または温度調節に用いられる電子部品によって制御されている。組電池１００は、通電可能に接続されかつ積層設置された複数の電池セル２を積層方向に拘束して一体にして形成されている。また、組電池１００は筐体内に収納するようにしてもよい。前述の電子部品は、例えばＤＣ／ＤＣコンバータ、熱媒体を流動させる流体駆動装置を駆動するモータ、インバータによって制御される電子部品、各種の電子式制御装置等である。組電池１００は、このような電子部品を含めた装置であってもよい。 The assembled battery 100 is controlled by electronic components used for charging and discharging or temperature control of a plurality of battery cells 2. The assembled battery 100 is formed by restraining a plurality of battery cells 2 which are connected so as to be energized and which are laminated and installed in the stacking direction and integrally formed. Further, the assembled battery 100 may be stored in the housing. The electronic components described above include, for example, a DC / DC converter, a motor for driving a fluid drive device for flowing a heat medium, electronic components controlled by an inverter, various electronic control devices, and the like. The assembled battery 100 may be a device including such electronic components.

電池積層体を構成する電池セル２は、角形状の外装ケースを有する単電池である。この角形状の単電池は、例えばアルミニウム、アルミニウム合金等からなる外装ケースによってその外周面を被覆された直方体状である。各電池セル２には、正極端子および負極端子からなる二つの電極端子２０のそれぞれが外装ケースの上面２１から突出しており、この突出方向は、電池積層方向に対して垂直な上方向である。電池セル２の外装ケースは、例えば、金属の他に、樹脂で形成される構成でもよい。また電池セル２は、樹脂とアルミ箔をラミネートしたフィルムを外装ケースとして備えるものでもよい。 The battery cell 2 constituting the battery laminate is a single battery having a square outer case. This square-shaped cell has a rectangular parallelepiped shape whose outer peripheral surface is covered with an outer case made of, for example, aluminum, an aluminum alloy, or the like. In each battery cell 2, each of the two electrode terminals 20 including the positive electrode terminal and the negative electrode terminal protrudes from the upper surface 21 of the outer case, and the protruding direction is an upward direction perpendicular to the battery stacking direction. The outer case of the battery cell 2 may be made of resin in addition to metal, for example. Further, the battery cell 2 may be provided with a film obtained by laminating resin and aluminum foil as an outer case.

電池積層体は、電池セル２を所定個数積層した電池積層体を積層方向の両端部から一組の拘束プレート３によって挟み、内側に向かう拘束力を作用させることにより一体に形成されている。一組の拘束プレート３は、電池積層体に対して積層方向の両側から拘束力を作用させる一組の拘束部材の一例である。拘束プレート３は、電池積層体の積層方向の両側において、電池セル２と接触している構成でもよいし電池セル２との間に熱伝導性を有するスペーサ部材を介在させて一体に設置されている構成でもよい。拘束プレート３は、電池積層体の端部に設置されているため、エンドプレートとも呼ばれる。 The battery laminate is integrally formed by sandwiching a battery laminate in which a predetermined number of battery cells 2 are laminated by a set of restraint plates 3 from both ends in the stacking direction and applying a binding force toward the inside. The set of restraint plates 3 is an example of a set of restraint members that exert binding forces on the battery laminate from both sides in the stacking direction. The restraint plates 3 may be configured to be in contact with the battery cells 2 on both sides of the battery laminate in the stacking direction, or are integrally installed with spacer members having thermal conductivity interposed between the restraint plates 3 and the battery cells 2. It may be configured to have. Since the restraint plate 3 is installed at the end of the battery laminate, it is also called an end plate.

拘束プレート３は厚さ方向寸法が上下方向長さや幅方向長さよりも小さい扁平状の箱体に形成されている。拘束プレート３は、上面３０と、上面３０に対向する下面３２と、上面３０および下面３２に隣り合い上下方向に細長い一組の側面３３と、隣接する電池セル２に対面する内側の幅面３１と、幅面３１に対向する外側の幅面とを備えて形成されている。幅面３１は拘束プレート３において最も面積の大きい腹面でもある。組電池１００は、電池積層体における少なくとも一つの面に一体に設置された熱媒体通路部材４を備えている。熱媒体通路部材４は、図２に示すように、電池積層体における下面に一体に設置されている。熱媒体通路部材４は、熱伝導性を有する材料、例えばアルミニウムを含む金属、銅を含む金属、金属を含有する樹脂材料、カーボン樹脂材料等で形成されている。 The restraint plate 3 is formed in a flat box whose thickness direction dimension is smaller than the vertical direction length and the width direction length. The restraint plate 3 includes an upper surface 30, a lower surface 32 facing the upper surface 30, a set of side surfaces 33 adjacent to the upper surface 30 and the lower surface 32 and elongated in the vertical direction, and an inner width surface 31 facing the adjacent battery cell 2. , The outer width surface facing the width surface 31 is provided. The width surface 31 is also the ventral surface having the largest area in the restraint plate 3. The assembled battery 100 includes a heat medium passage member 4 integrally installed on at least one surface of the battery stack. As shown in FIG. 2, the heat medium passage member 4 is integrally installed on the lower surface of the battery laminate. The heat medium passage member 4 is made of a material having thermal conductivity, for example, a metal containing aluminum, a metal containing copper, a resin material containing metal, a carbon resin material, and the like.

一組の拘束プレート３は、組電池１００が備える電池積層体の積層方向の両側において、電池セル２に対して熱伝達可能に設けられている。拘束プレート３は、熱伝導性を有する材料、例えばアルミニウムを含む金属、銅を含む金属、金属を含有する樹脂材料、カーボン樹脂材料等で形成されている。拘束プレート３は、金属製である場合は例えばダイカスト法などの鋳造によって製造可能であり、樹脂製である場合は金型を用いた成形によって製造可能である。 A set of restraint plates 3 are provided so as to be heat transferable to the battery cells 2 on both sides of the battery laminate included in the assembled battery 100 in the stacking direction. The restraint plate 3 is made of a material having thermal conductivity, for example, a metal containing aluminum, a metal containing copper, a resin material containing metal, a carbon resin material, or the like. When the restraint plate 3 is made of metal, it can be manufactured by casting, for example, by a die casting method, and when it is made of resin, it can be manufactured by molding using a mold.

組電池１００の拘束構造について説明する。図１に示すように、組電池１００は、複数の電池セル２、一組の拘束プレート３、一組の拘束プレート３に対して両側から圧縮力を付与する拘束バンド５等を備える。拘束バンド５は、電池セル２の側面２３の一部を覆うように電池積層体に対して積層方向に配されている保持部５０と、保持部の両端部に設けられた固定部５１とを備えている。この場合、拘束バンド５は、電池積層体と一組の拘束プレート３とを合わせた積層構造体に対して外周を取り囲む帯状部材である。 The restraint structure of the assembled battery 100 will be described. As shown in FIG. 1, the assembled battery 100 includes a plurality of battery cells 2, a set of restraint plates 3, a restraint band 5 that applies compressive force to a set of restraint plates 3 from both sides, and the like. The restraint band 5 comprises a holding portion 50 arranged in the stacking direction with respect to the battery laminate so as to cover a part of the side surface 23 of the battery cell 2, and fixing portions 51 provided at both ends of the holding portion. I have. In this case, the restraint band 5 is a band-shaped member that surrounds the outer periphery of the laminated structure in which the battery laminate and the set of restraint plates 3 are combined.

組電池１００は、それぞれの側面２３において上下方向に間隔をあけて設けられた２個の拘束バンド５によって拘束されている。拘束バンド５は、拘束バンド５の固定部５１が各拘束プレート３にリベットによって固定されていることにより、電池積層体に対して必要な拘束力を提供している状態を維持している。また、リベットは、ボルトナット等の締結固定手段、溶接等の固定手段に置き換えることができる。拘束バンド５は、複数の電池セル２等を安定した力で押圧して一体化できるように金属、硬質の樹脂材料等の強度に優れた材料で形成されている。 The assembled battery 100 is restrained by two restraint bands 5 provided at intervals in the vertical direction on each side surface 23. The restraint band 5 maintains a state in which the fixing portion 51 of the restraint band 5 is fixed to each restraint plate 3 by rivets to provide a necessary restraining force to the battery laminate. Further, the rivet can be replaced with a fastening and fixing means such as bolts and nuts, and a fixing means such as welding. The restraint band 5 is formed of a material having excellent strength, such as a metal or a hard resin material, so that a plurality of battery cells 2 and the like can be pressed and integrated with a stable force.

図２に示すように、一組の拘束プレート３のうち、一方側に位置する拘束プレート３の内部には、熱媒体が流入する流入側接続部４０ａと熱媒体が流出する流出側接続部４２ｃとが設けられている。流入側接続部４０ａと流出側接続部４２ｃは、拘束プレート３の下面３２の近傍に設けられており、下面３２に形成された二つの開口部にそれぞれ連通している。拘束プレート３には、設置部１０に固定するための固定具であるボルト６を挿通する貫通穴３ａと貫通穴３ｂが幅方向の端部を上下方向に拘束プレート３を貫通するように設けられている。 As shown in FIG. 2, in the restraint plate 3 located on one side of the set of restraint plates 3, the inflow side connection portion 40a into which the heat medium flows in and the outflow side connection portion 42c in which the heat medium flows out flow out. And are provided. The inflow side connection portion 40a and the outflow side connection portion 42c are provided in the vicinity of the lower surface 32 of the restraint plate 3 and communicate with the two openings formed in the lower surface 32, respectively. The restraint plate 3 is provided with a through hole 3a and a through hole 3b through which a bolt 6 which is a fixing tool for fixing to the installation portion 10 is inserted so as to penetrate the restraint plate 3 in the vertical direction at the end in the width direction. ing.

一方側の拘束プレート３は、流入側接続部４０ａと熱媒体通路部材４内の熱媒体通路４１とを連通させる上流側の拘束部材内通路４０と、熱媒体通路４１と流出側接続部４２ｃとを連通させる下流側の拘束部材内通路４２と、を内部に有している。拘束部材内通路４０は、上流端部の流入側接続部４０ａから下流端部４０ｃにわたって折返し部４０ｂが上部に位置するように拘束プレート３の幅面３１に沿ってＵ字状に延びる通路である。拘束部材内通路４２は、上流端部４２ａから下流端部の流出側接続部４２ｃにわたって折返し部４２ｂが上部に位置するように拘束プレート３の幅面３１に沿ってＵ字状に延びる通路である。拘束部材内通路４２は、幅方向に拘束部材内通路４０に隣り合うように設けられている。拘束部材内通路４０、拘束部材内通路４２は、上下方向の範囲が隣接する電池セル２の上下方向長さと同等の長さを有する通路である。拘束部材内通路４０、拘束部材内通路４２は、折返し部４０ｂ、折返し部４２ｂが隣接する電池セル２に対して積層方向に重なるように設けられている。拘束部材内通路４０、拘束部材内通路４２は、幅方向の全体が隣接する電池セル２に対して積層方向に重なるように設けられている。これらの各構成を備える拘束部材内通路４０，４２によれば、電池セル２に対する温調機能を高めることに寄与する。 The restraint plate 3 on one side includes an upstream side restraint member inner passage 40 that communicates the inflow side connection portion 40a and the heat medium passage 41 in the heat medium passage member 4, and the heat medium passage 41 and the outflow side connection portion 42c. A passage 42 in the restraint member on the downstream side is provided inside. The restraint member inner passage 40 is a passage extending in a U shape along the width surface 31 of the restraint plate 3 so that the folded-back portion 40b is located at the upper part from the inflow side connecting portion 40a at the upstream end portion to the downstream end portion 40c. The restraint member inner passage 42 is a passage extending in a U shape along the width surface 31 of the restraint plate 3 so that the folded-back portion 42b is located at the upper part from the upstream end portion 42a to the outflow side connecting portion 42c of the downstream end portion. The restraint member inner passage 42 is provided so as to be adjacent to the restraint member inner passage 40 in the width direction. The restraint member inner passage 40 and the restraint member inner passage 42 are passages having a vertical range equal to the vertical length of the adjacent battery cells 2. The restraint member inner passage 40 and the restraint member inner passage 42 are provided so that the folded-back portion 40b and the folded-back portion 42b overlap the adjacent battery cells 2 in the stacking direction. The restraint member inner passage 40 and the restraint member inner passage 42 are provided so that the entire width direction overlaps with the adjacent battery cells 2 in the stacking direction. According to the passages 40 and 42 in the restraint member having each of these configurations, it contributes to enhancing the temperature control function for the battery cell 2.

熱媒体通路部材４は、電池積層体の下面に対向する熱媒体通路４１を内部に有するプレート部を備えている。プレート部には、設置部１０に固定するための固定具であるボルト６を挿通する貫通穴４ａが四隅に設けられている。貫通穴４ａは、拘束プレート３の貫通穴３ａ，３ｂに対応する位置に設けられている。熱媒体通路４１は、プレート部の内部において熱媒体が積層方向の一方側から他方側を経由して一方側に戻るようにＵ字状に流通する通路である。熱媒体通路４１は、上流側通路４１ａから下流側通路４１ｃにわたって折返し部４１ｂが他方側に位置するようにＵ字状に延びる通路である。上流側通路４１ａは、上流端部において拘束部材内通路４０の下流端部４０ｃに接続し、下流端部において折返し部４１ｂに接続している。下流側通路４１ｃは、上流端部において折返し部４１ｂに接続し、下流端部において拘束部材内通路４２の上流端部４２ａに接続している。 The heat medium passage member 4 includes a plate portion having a heat medium passage 41 facing the lower surface of the battery laminate inside. The plate portion is provided with through holes 4a at four corners through which bolts 6, which are fixtures for fixing to the installation portion 10, are inserted. The through hole 4a is provided at a position corresponding to the through hole 3a, 3b of the restraint plate 3. The heat medium passage 41 is a passage in which the heat medium flows in a U shape inside the plate portion so as to return from one side in the stacking direction to the other side via the other side. The heat medium passage 41 is a passage extending in a U shape from the upstream side passage 41a to the downstream side passage 41c so that the folded-back portion 41b is located on the other side. The upstream side passage 41a is connected to the downstream end 40c of the restraint member inner passage 40 at the upstream end, and is connected to the folded-back portion 41b at the downstream end. The downstream passage 41c is connected to the folded-back portion 41b at the upstream end and is connected to the upstream end 42a of the restraint member inner passage 42 at the downstream end.

一方側の拘束プレート３は、組電池１００の外部からの熱媒体を熱媒体通路部材４内に導入する流入タンク部であるとともに、熱媒体通路部材４内から熱媒体が組電池１００の外部に流出する流出タンク部である。組電池１００において熱媒体通路部材４に内部通路に熱媒体が流通することにより、プレート部と電池セル２の下面を介して電池セル２の熱が熱媒体に吸熱されて各電池セル２を冷却することができる。また熱媒体通路部材４に内部通路に熱媒体が流通することにより、プレート部と電池セル２の下面を介して熱媒体の熱を電池セル２へ放熱して各電池セル２を暖めることができる。 The restraint plate 3 on one side is an inflow tank portion for introducing a heat medium from the outside of the assembled battery 100 into the heat medium passage member 4, and the heat medium is introduced from the inside of the heat medium passage member 4 to the outside of the assembled battery 100. It is the outflow tank part that flows out. In the assembled battery 100, the heat medium flows through the heat medium passage member 4 through the internal passage, so that the heat of the battery cell 2 is absorbed by the heat medium through the plate portion and the lower surface of the battery cell 2 to cool each battery cell 2. can do. Further, since the heat medium flows through the heat medium passage member 4 through the internal passage, the heat of the heat medium can be dissipated to the battery cells 2 via the plate portion and the lower surface of the battery cells 2 to heat each battery cell 2. ..

図３に示すように、各拘束プレート３は、ボルト６とナット６１により、設置部１０に固定されている。配管７は、配管固定部材７０とねじ７１とによって、設置部１０に固定されている。配管固定部材７０は、配管７を下方の設置部１０に向けて押さえて保持する部材である。ねじ７１は、配管７を設置部１０に押し付けて保持している状態の配管固定部材７０を設置部１０にねじ締め固定できる。 As shown in FIG. 3, each restraint plate 3 is fixed to the installation portion 10 by bolts 6 and nuts 61. The pipe 7 is fixed to the installation portion 10 by the pipe fixing member 70 and the screw 71. The pipe fixing member 70 is a member that presses and holds the pipe 7 toward the lower installation portion 10. The screw 71 can screw and fix the pipe fixing member 70 in a state where the pipe 7 is pressed against and held by the installation portion 10.

配管７は、供給配管や流入配管である。配管７は、設置部１０の表面に沿う形状から端部において上方に延びる形状に形成されている。上方に延びている配管７の端部は、下方に向けて開口する流入側接続部４０ａや流出側接続部４２ｃに嵌り込むように設置されている。配管７の端部と流入側接続部４０ａや流出側接続部４２ｃとの間には、Ｏリングなどのシール部材７２が設けられている。 The pipe 7 is a supply pipe or an inflow pipe. The pipe 7 is formed in a shape extending upward at an end portion from a shape along the surface of the installation portion 10. The end of the pipe 7 extending upward is installed so as to fit into the inflow side connecting portion 40a and the outflow side connecting portion 42c that open downward. A seal member 72 such as an O-ring is provided between the end of the pipe 7 and the inflow side connection portion 40a or the outflow side connection portion 42c.

図３に示す状態において、ボルト６とナットを含む固定具を締めつけて固定力を強くしていくと、拘束プレート３が設置部１０に接近する方向に移動していく。このような拘束プレート３の接近移動に伴い、配管７の端部と流入側接続部４０ａや流出側接続部４２ｃとは深く嵌り合うようになる。つまり、配管７の端部と流入側接続部４０ａや流出側接続部４２ｃは固定具の固定力によって拘束プレート３が設置部１０に接近する方向に嵌り合っているため、拘束プレート３を設置部１０に固定する作業により、拘束プレート３への配管接続作業を実施できる。 In the state shown in FIG. 3, when the fixture including the bolt 6 and the nut is tightened to increase the fixing force, the restraint plate 3 moves in the direction approaching the installation portion 10. With the approaching movement of the restraint plate 3, the end portion of the pipe 7 and the inflow side connecting portion 40a and the outflow side connecting portion 42c are deeply fitted. That is, since the end portion of the pipe 7, the inflow side connection portion 40a, and the outflow side connection portion 42c are fitted in the direction in which the restraint plate 3 approaches the installation portion 10 due to the fixing force of the fixture, the restraint plate 3 is installed in the installation portion. By the work of fixing to 10, the work of connecting the pipe to the restraint plate 3 can be carried out.

第１実施形態の組電池１００がもたらす作用、効果について説明する。組電池１００は、電池積層体と、内部通路を流通する熱媒体と電池セル２とが熱交換する熱媒体通路部材４と、熱伝導性を有し電池積層体に対して積層方向の両側から拘束力を作用させるように電池積層体の両側に電池セル２に対して熱伝達可能に設けられた一組の拘束部材と、を備える。熱媒体通路部材４の内部通路は、一組の拘束部材のうち少なくとも一つの拘束部材の内部に設けられた拘束部材内通路４０，４２に連結されている。 The action and effect of the assembled battery 100 of the first embodiment will be described. The assembled battery 100 has a battery laminate, a heat medium passage member 4 through which heat is exchanged between the heat medium flowing through the internal passage and the battery cell 2, and has thermal conductivity from both sides in the stacking direction with respect to the battery laminate. A set of restraining members provided on both sides of the battery laminate so as to be heat-transferable to the battery cells 2 so as to exert a binding force are provided. The internal passage of the heat medium passage member 4 is connected to the passages 40 and 42 in the restraint member provided inside at least one of the restraint members in the set.

この組電池１００によれば、熱媒体は熱媒体通路部材４の内部通路を流通して電池セル２と熱交換するとともに、拘束部材内通路４０，４２にも流通する。拘束部材内通路４０，４２を流通する熱媒体は、拘束部材に隣接している電池セル２と熱交換するため、拘束部材は複数の電池セル２を積層方向に拘束する拘束機能と電池を温度調整可能な温調機能とを併せ持つことができる。したがって、組電池１００は、構成部品の多機能性が図れる製品を提供できる。 According to the assembled battery 100, the heat medium circulates in the internal passage of the heat medium passage member 4 to exchange heat with the battery cell 2, and also circulates in the passages 40 and 42 in the restraint member. Since the heat medium flowing through the passages 40 and 42 in the restraint member exchanges heat with the battery cell 2 adjacent to the restraint member, the restraint member has a restraint function of restraining the plurality of battery cells 2 in the stacking direction and the temperature of the battery. It can also have an adjustable temperature control function. Therefore, the assembled battery 100 can provide a product in which the components can be multifunctional.

拘束部材は、熱媒体を拘束部材内通路４０に供給するための供給配管を接続可能な流入側接続部４０ａと、拘束部材内通路４２から熱媒体が流出する流出配管を接続可能な流出側接続部４２ｃとを内部に有している。この構成によれば、熱媒体通路部材４の内部通路に熱媒体を供給するための供給配管と熱媒体を外部に取り出す流出配管とを拘束部材の内部において接続することができる。これにより、配管接続部が組電池１００の外部に突出していない構成であるので、配管接続部と組電池１００とを含めた占有空間をコンパクトに形成できる。 The restraint member is an outflow side connection that can connect an inflow side connection portion 40a to which a supply pipe for supplying the heat medium to the restraint member inner passage 40 can be connected and an outflow pipe to which the heat medium flows out from the restraint member inner passage 42. It has a portion 42c inside. According to this configuration, the supply pipe for supplying the heat medium to the internal passage of the heat medium passage member 4 and the outflow pipe for taking out the heat medium to the outside can be connected inside the restraint member. As a result, since the pipe connection portion does not protrude to the outside of the assembled battery 100, the occupied space including the pipe connecting portion and the assembled battery 100 can be compactly formed.

組電池１００は、拘束部材を設置部１０に固定するための固定具を備えている。供給配管の出口部と流入側接続部４０ａは、固定具の固定力によって拘束部材が設置部１０に対して接近する方向に嵌り合っている。この構成によれば、固定具によって拘束部材を設置部１０に固定することにより、供給配管の出口部と流入側接続部４０ａとをより深く嵌り合わせることができるので、配管接続を容易に実施することができる。これにより、供給配管を拘束部材内通路４０に接続するための構成を簡潔にでき、接続作業性を向上することができる。また、供給配管の出口部と流入側接続部４０ａとの間にシール部材７２を介在させる構成を備えることにより、シール性と作業性向上との両方を併せ持つ組電池１００を提供できる。 The assembled battery 100 includes a fixture for fixing the restraint member to the installation portion 10. The outlet portion of the supply pipe and the inflow side connecting portion 40a are fitted in a direction in which the restraining member approaches the installation portion 10 due to the fixing force of the fixture. According to this configuration, by fixing the restraint member to the installation portion 10 with the fixture, the outlet portion of the supply pipe and the inflow side connection portion 40a can be fitted deeper, so that the pipe connection can be easily performed. be able to. As a result, the configuration for connecting the supply pipe to the passage 40 in the restraint member can be simplified, and the connection workability can be improved. Further, by providing a configuration in which the seal member 72 is interposed between the outlet portion of the supply pipe and the inflow side connection portion 40a, it is possible to provide the assembled battery 100 having both sealability and workability improvement.

流出配管の入口部と流出側接続部４２ｃは、固定具の固定力によって拘束部材が設置部１０に対して接近する方向に嵌り合っている。この構成によれば、固定具によって拘束部材を設置部１０に固定することにより、流出配管の出口部と流出側接続部４２ｃとをより深く嵌り合わせることができるので、配管接続を容易に実施することができる。これにより、流出配管を拘束部材内通路４０に接続するための構成を簡潔にでき、接続作業性を向上することができる。また、この構成によれば、例えば、雄ねじと雌ねじとの螺合による手段を用いずとも配管接続を実施することができる。さらに流出配管の出口部と流出側接続部４２ｃとの間にシール部材７２を介在させる構成を備えることによれば、シール性と作業性向上との両方を併せ持つ組電池１００を提供できる。 The inlet portion of the outflow pipe and the outflow side connection portion 42c are fitted in a direction in which the restraint member approaches the installation portion 10 due to the fixing force of the fixture. According to this configuration, by fixing the restraint member to the installation portion 10 with the fixture, the outlet portion of the outflow pipe and the outflow side connection portion 42c can be fitted deeper, so that the pipe connection can be easily performed. be able to. As a result, the configuration for connecting the outflow pipe to the passage 40 in the restraint member can be simplified, and the connection workability can be improved. Further, according to this configuration, for example, it is possible to carry out the pipe connection without using means by screwing the male screw and the female screw. Further, by providing a configuration in which the seal member 72 is interposed between the outlet portion of the outflow pipe and the outflow side connection portion 42c, it is possible to provide the assembled battery 100 having both sealability and workability improvement.

一組の拘束部材のうち、積層方向の一方側に設けられた拘束部材は、流入側接続部４０ａと流出側接続部４２ｃとを内部に有している。この構成によれば、供給配管内から一方側の拘束部材内部の拘束部材内通路４０に流入した熱媒体は、熱媒体通路部材４の内部通路を流通して電池セル２と熱交換した後、一方側の拘束部材内部の拘束部材内通路４２を介して流出配管内に流出する。これにより、一方側の拘束部材において内部を流通する熱媒体と電池セル２とが熱交換する熱媒体の流路を有する組電池１００を提供できる。 Of the set of restraint members, the restraint member provided on one side in the stacking direction has an inflow side connecting portion 40a and an outflow side connecting portion 42c inside. According to this configuration, the heat medium that has flowed into the restraint member inner passage 40 inside the restraint member on one side from the supply pipe flows through the inner passage of the heat medium passage member 4 and exchanges heat with the battery cell 2. It flows out into the outflow pipe through the passage 42 in the restraint member inside the restraint member on one side. Thereby, it is possible to provide the assembled battery 100 having a flow path of the heat medium through which the heat medium circulating inside and the battery cell 2 exchange heat in the restraint member on one side.

（第２実施形態）
第２実施形態について図４および図５を参照して説明する。第２実施形態で特に説明しない構成、作用、効果については、第１実施形態と同様であり、第１実施形態と異なる点についてのみ説明する。第２実施形態の組電池２００は、積層設置された複数の電池セル２とセル間部１４０の内部を流通する熱媒体とが熱交換する構成を備える装置である。 (Second Embodiment)
The second embodiment will be described with reference to FIGS. 4 and 5. The configurations, actions, and effects that are not particularly described in the second embodiment are the same as those in the first embodiment, and only the points different from those in the first embodiment will be described. The assembled battery 200 of the second embodiment is a device having a configuration in which a plurality of battery cells 2 stacked and installed and a heat medium circulating inside the inter-cell portion 140 exchange heat.

組電池２００は、複数の電池セル２、隣接する電池セル２間に介在するセル間部１４０、隣接するセル間部１４０間を連結する連結部１４１、一組の拘束プレート３、一組の拘束プレート３に対して両側から拘束力を付与する拘束バンド５等を備える。電池積層体は、電池セル２と熱媒体通路部材１０４のセル間部１４０とを交互に所定個数積層した集合体を積層方向の両端部から一組の拘束プレート３によって挟み、内側に向かう拘束力を作用させることにより一体に形成されている。 The assembled battery 200 includes a plurality of battery cells 2, an inter-cell portion 140 interposed between the adjacent battery cells 2, a connecting portion 141 for connecting the adjacent inter-cell portions 140, a set of restraint plates 3, and a set of restraints. A restraint band 5 or the like that applies a restraining force to the plate 3 from both sides is provided. In the battery laminate, an aggregate in which a predetermined number of battery cells 2 and inter-cell portions 140 of the heat medium passage member 104 are alternately laminated is sandwiched by a set of restraint plates 3 from both ends in the stacking direction, and a binding force toward the inside is obtained. Is formed integrally by the action of.

熱媒体通路部材１０４は、積層方向に隣り合う電池セル２と電池セル２との間に介在するセル間部１４０を複数備えている。セル間部１４０の内部通路には熱媒体が流通する。複数のセル間部１４０は、積層方向に並ぶように設置されている。積層方向に隣り合うセル間部１４０とセル間部１４０とは、電池セル２の積層方向の厚さ寸法と同等の間隔が設けられている。セル間部１４０は、幅方向と上下方向とに面をなす電池セル２の幅面に接触した状態で設置されている。幅面は電池セル２において最も面積の大きい腹面でもある。また、電池セル２とセル間部１４０との間に熱伝導性を有するスペーサ部材を介在させて、スペーサ部材を電池セル２とセル間部１４０とによって挟み込むように構成してもよい。 The heat medium passage member 104 includes a plurality of inter-cell portions 140 interposed between the battery cells 2 adjacent to each other in the stacking direction and the battery cells 2. A heat medium circulates in the internal passage of the inter-cell portion 140. The plurality of cell-to-cell portions 140 are installed so as to be arranged in the stacking direction. The inter-cell portion 140 and the inter-cell portion 140 adjacent to each other in the stacking direction are provided with a distance equivalent to the thickness dimension of the battery cell 2 in the stacking direction. The cell-to-cell portion 140 is installed in a state of being in contact with the width surface of the battery cell 2 forming a surface in the width direction and the vertical direction. The width surface is also the ventral surface having the largest area in the battery cell 2. Further, a spacer member having thermal conductivity may be interposed between the battery cell 2 and the inter-cell portion 140 so that the spacer member is sandwiched between the battery cell 2 and the inter-cell portion 140.

熱媒体通路部材１０４は、積層方向に隣り合うセル間部１４０とセル間部１４０とを連結する連結部１４１を備えている。連結部１４１の内部通路には熱媒体が流通する。連結部１４１は、電池セル２の幅方向について、電池セル２よりも外側に位置するように設けられている。連結部１４１は、上面２１と幅面との両方に直交する電池セル２の側面２３に対向するように設けられている。 The heat medium passage member 104 includes a connecting portion 141 that connects the inter-cell portions 140 and the inter-cell portions 140 that are adjacent to each other in the stacking direction. A heat medium circulates in the internal passage of the connecting portion 141. The connecting portion 141 is provided so as to be located outside the battery cell 2 in the width direction of the battery cell 2. The connecting portion 141 is provided so as to face the side surface 23 of the battery cell 2 orthogonal to both the upper surface 21 and the width surface.

連結部１４１は、熱媒体通路部材１０４の内部を流れる熱媒体が折り返されてその流れの向きを変えて互いに対向する折返し流路を形成するターン部であり、折返し部でもある。連結部１４１は、流路の向きを逆向きに変更する折返し部であり、熱媒体通路部材１０４において少なくとも１箇所設けられている。熱媒体通路部材１０４は、連結部１４１を介して折返し流路を連続的に積層することにより、図４および図５に示すような蛇行流路を形成している。 The connecting portion 141 is a turn portion in which the heat medium flowing inside the heat medium passage member 104 is folded back to change the direction of the flow to form a folded-back flow path facing each other, and is also a folded-back portion. The connecting portion 141 is a folded-back portion that changes the direction of the flow path in the opposite direction, and is provided at least at one position in the heat medium passage member 104. The heat medium passage member 104 forms a meandering flow path as shown in FIGS. 4 and 5 by continuously laminating the folded flow paths via the connecting portion 141.

熱媒体通路部材１０４は、折返し流路の積層方向、すなわち電池積層方向の端部に熱媒体が流入する流入部１４２ａを備えている。流入部１４２ａは、積層方向の一方側に設けられた拘束プレート３の拘束部材内通路４０に接続されている。拘束部材内通路４０は、拘束プレート３の幅面３１に沿って扁平状に延びる通路であり、拘束プレート３の内部に形成されている。拘束部材内通路４０は、拘束プレート３の内部において、幅方向の一方側に位置する流入部１４２ａから他方側に位置する流入側接続部４０ａにわたって帯状または扁平状に延びるように設けられている。拘束部材内通路４０は、上下方向についてセル間部１４０と同等の長さを有して帯状または扁平状に形成されている。拘束部材内通路４０、上下方向の全体が隣接するセル間部１４０に対して積層方向に重なるように設けられている。拘束部材内通路４０、幅方向の全体が隣接するセル間部１４０に対して積層方向に重なるように設けられている。拘束部材内通路４０は、その全体が隣接するセル間部１４０に対して積層方向に重なるように設けられていることが好ましい。これらの各構成を備える拘束部材内通路４０によれば、電池セル２に対する温調機能を高めることに寄与する。 The heat medium passage member 104 includes an inflow portion 142a into which the heat medium flows into the end portion of the folded flow path in the stacking direction, that is, in the battery stacking direction. The inflow portion 142a is connected to a passage 40 in the restraint member of the restraint plate 3 provided on one side in the stacking direction. The restraint member inner passage 40 is a passage that extends flatly along the width surface 31 of the restraint plate 3 and is formed inside the restraint plate 3. The restraint member inner passage 40 is provided inside the restraint plate 3 so as to extend in a band shape or a flat shape from the inflow portion 142a located on one side in the width direction to the inflow side connecting portion 40a located on the other side. The passage 40 in the restraint member has a length equivalent to that of the inter-cell portion 140 in the vertical direction, and is formed in a band shape or a flat shape. The restraint member inner passage 40 and the entire vertical direction are provided so as to overlap the adjacent cell-to-cell portions 140 in the stacking direction. The passage 40 in the restraint member and the entire width direction are provided so as to overlap the adjacent cell-to-cell portions 140 in the stacking direction. It is preferable that the restraint member inner passage 40 is provided so that the entire passage 40 overlaps the adjacent cell-to-cell portion 140 in the stacking direction. The passage 40 in the restraint member having each of these configurations contributes to enhancing the temperature control function for the battery cell 2.

電池積層方向の端部であり熱媒体の上流端部に位置するセル間部１４０の内部通路は、折返し部１４２および流入部１４２ａの内部通路を介して、一方側の拘束プレート３の内部通路に連通している。一方側の拘束プレート３には、組電池１００の外部から熱媒体を導入する配管が接続されている。一方側の拘束プレート３は、組電池１００の外部からの熱媒体を熱媒体通路部材１０４内に導入する流入タンク部である。一方側の拘束プレート３は、電池積層体のうち一方側の端部に位置する電池セル２と内部通路を流通する熱媒体とが熱交換するように、この電池セル２に対して伝熱可能に設けられている。 The internal passage of the inter-cell portion 140, which is the end portion in the battery stacking direction and is located at the upstream end portion of the heat medium, passes through the internal passage of the folded portion 142 and the inflow portion 142a to the internal passage of the restraint plate 3 on one side. Communicating. A pipe for introducing a heat medium from the outside of the assembled battery 100 is connected to the restraint plate 3 on one side. The restraint plate 3 on one side is an inflow tank portion for introducing a heat medium from the outside of the assembled battery 100 into the heat medium passage member 104. The restraint plate 3 on one side can transfer heat to the battery cell 2 so that the battery cell 2 located at one end of the battery stack and the heat medium flowing through the internal passage exchange heat. It is provided in.

熱媒体通路部材１０４は、折返し流路の積層方向、すなわち電池積層方向の端部から熱媒体が流出する流出部１４３ａを備えている。流出部１４３ａは、積層方向の他方側に設けられた拘束プレート３の拘束部材内通路４２に接続されている。拘束部材内通路４２は、拘束プレート３の内部において、幅方向の一方側に位置する流出部１４３ａから他方側に位置する流出側接続部４２ｃにわたって帯状または扁平状に延びるように設けられている。拘束部材内通路４２は、上下方向についてセル間部１４０と同等の長さを有して帯状または扁平状に形成されている。拘束部材内通路４２、上下方向の全体が隣接するセル間部１４０に対して積層方向に重なるように設けられている。拘束部材内通路４２、幅方向の全体が隣接するセル間部１４０に対して積層方向に重なるように設けられている。拘束部材内通路４２は、その全体が隣接するセル間部１４０に対して積層方向に重なるように設けられていることが好ましい。これらの各構成を備える拘束部材内通路４２によれば、電池セル２に対する温調機能を高めることに寄与する。 The heat medium passage member 104 includes an outflow portion 143a through which the heat medium flows out from the end portion of the folded flow path in the stacking direction, that is, the battery stacking direction. The outflow portion 143a is connected to the passage 42 in the restraint member of the restraint plate 3 provided on the other side in the stacking direction. The restraint member inner passage 42 is provided inside the restraint plate 3 so as to extend in a band shape or a flat shape from the outflow side 143a located on one side in the width direction to the outflow side connection portion 42c located on the other side. The passage 42 in the restraint member has a length equivalent to that of the inter-cell portion 140 in the vertical direction, and is formed in a band shape or a flat shape. The restraint member inner passage 42 and the entire vertical direction are provided so as to overlap the adjacent cell-to-cell portions 140 in the stacking direction. The restraint member inner passage 42 and the entire width direction are provided so as to overlap the adjacent cell-to-cell portions 140 in the stacking direction. It is preferable that the restraint member inner passage 42 is provided so that the entire passage 42 overlaps the adjacent cell-to-cell portion 140 in the stacking direction. The passage 42 in the restraint member having each of these configurations contributes to enhancing the temperature control function for the battery cell 2.

電池積層方向の端部であり熱媒体の下流端部に位置するセル間部１４０の内部通路は、折返し部１４３および流出部１４３ａの内部通路を介して、他方側の拘束プレート３の内部通路に連通している。他方側の拘束プレート３には、組電池２００の外部へ熱媒体を流出する配管が接続されている。他方側の拘束プレート３は、熱媒体通路部材１０４内から組電池２００の外部へ熱媒体を流出する流出タンク部である。他方側の拘束プレート３は、電池積層体のうち他方側の端部に位置する電池セル２と内部通路を流通する熱媒体とが熱交換するように、この電池セル２に対して伝熱可能に設けられている。 The internal passage of the inter-cell portion 140, which is the end portion in the battery stacking direction and is located at the downstream end portion of the heat medium, passes through the internal passage of the folded portion 143 and the outflow portion 143a to the internal passage of the restraint plate 3 on the other side. Communicating. A pipe for flowing out the heat medium to the outside of the assembled battery 200 is connected to the restraint plate 3 on the other side. The restraint plate 3 on the other side is an outflow tank portion that allows the heat medium to flow out from the inside of the heat medium passage member 104 to the outside of the assembled battery 200. The restraint plate 3 on the other side can transfer heat to the battery cell 2 so that the battery cell 2 located at the other end of the battery stack and the heat medium flowing through the internal passage exchange heat. It is provided in.

このように熱媒体通路部材１０４は、流入部１４２ａ側に設けられた折返し部１４２および５箇所の連結部１４１と、流出部１４３ａ側に設けられた５箇所の連結部１４１および折返し部１４３とを経由して形成されている蛇行流路を有する。熱媒体通路部材１０４の内部通路は、熱媒体が電池セル２と熱交換するときの流れ方向、すなわち幅方向と積層方向との両方に直交する上下方向に細長い扁平管である。熱媒体通路部材１０４は、この扁平管を曲げたサーペンタイン管によって形成することができる。この扁平管は、内部に複数の通路を有し、押し出し成形により形成された扁平状多穴管であってもよい。 As described above, the heat medium passage member 104 has the folded-back portion 142 and the five connecting portions 141 provided on the inflow portion 142a side, and the five connecting portions 141 and the folded-back portion 143 provided on the outflow portion 143a side. It has a meandering flow path formed via. The internal passage of the heat medium passage member 104 is a flat tube elongated in the vertical direction orthogonal to both the flow direction when the heat medium exchanges heat with the battery cell 2, that is, the width direction and the stacking direction. The heat medium passage member 104 can be formed by a serpentine tube in which the flat tube is bent. This flat tube may be a flat multi-hole tube having a plurality of passages inside and formed by extrusion molding.

組電池２００において熱媒体通路部材４に内部通路に熱媒体が流通することにより、セル間部１４０を介して電池セル２の熱が熱媒体に吸熱されて各電池セル２を冷却することができる。また熱媒体通路部材１０４に内部通路に熱媒体が流通することにより、セル間部１４０を介して熱媒体の熱を電池セル２へ放熱して各電池セル２を暖めることができる。 When the heat medium flows through the heat medium passage member 4 in the assembled battery 200 through the internal passage, the heat of the battery cells 2 is absorbed by the heat medium through the inter-cell portion 140, and each battery cell 2 can be cooled. .. Further, when the heat medium flows through the internal passage through the heat medium passage member 104, the heat of the heat medium can be dissipated to the battery cells 2 via the inter-cell portion 140 to heat each battery cell 2.

第２実施形態の組電池２００がもたらす作用効果について説明する。熱媒体通路部材１０４は、積層方向に隣り合う電池セル２と電池セル２の間に介在し内部通路を流通する熱媒体と電池セル２とが熱交換するセル間部１４０と、積層方向に隣り合うセル間部１４０とセル間部１４０とを連結し内部通路を熱媒体が流れる連結部１４１とを備える。この構成によれば、電池セル２とセル間部１４０との熱伝達性能を高めるように拘束する拘束機能と、拘束部材と隣接する電池セル２に対する温調機能とを発揮する拘束部材を提供できる。したがって、拘束部材の多機能性が図れる組電池２００を提供できる。 The action and effect brought about by the assembled battery 200 of the second embodiment will be described. The heat medium passage member 104 is adjacent to the inter-cell portion 140 in the stacking direction, which is interposed between the battery cells 2 adjacent to each other in the stacking direction and exchanges heat between the heat medium flowing through the internal passage and the battery cells 2. The inter-cell portion 140 and the inter-cell portion 140 are connected to each other, and a connecting portion 141 through which a heat medium flows through an internal passage is provided. According to this configuration, it is possible to provide a restraint member that exerts a restraint function of restraining the battery cell 2 and the inter-cell portion 140 so as to enhance the heat transfer performance and a temperature control function for the battery cell 2 adjacent to the restraint member. .. Therefore, it is possible to provide an assembled battery 200 capable of achieving multifunctionality of the restraint member.

セル間部１４０と連結部１４１は、電池積層体における積層方向の一方端部から他方端部にかけてすべての電池セル２と熱交換する熱媒体が流下する一連の内部通路を形成するように設けられている。この構成によれば、電池積層体に含まれるすべての電池セル２とセル間部１４０との熱伝達性能を高めるように拘束する拘束機能と、拘束部材と隣接する電池セル２に対する温調機能とを発揮する拘束部材を提供できる。 The inter-cell portion 140 and the connecting portion 141 are provided so as to form a series of internal passages through which a heat medium that exchanges heat with all the battery cells 2 flows down from one end to the other end in the stacking direction in the battery laminate. ing. According to this configuration, a restraint function for restraining all the battery cells 2 included in the battery laminate and the inter-cell portion 140 so as to enhance the heat transfer performance, and a temperature control function for the battery cell 2 adjacent to the restraint member are provided. It is possible to provide a restraining member that exerts the above.

一組の拘束部材のうち一方端部の電池セル２に隣接する一方の拘束部材は、熱媒体を拘束部材内通路４０に供給するための供給配管を接続可能な流入側接続部４０ａを内部に有する。さらに他方端部の電池セル２に隣接する他方の拘束部材は、拘束部材内通路４２から熱媒体が流出する流出配管を接続可能な流出側接続部４２ｃを内部に有する。この構成によれば、供給配管内から一方の拘束部材内部の拘束部材内通路４０に流入した熱媒体は、熱媒体通路部材４の内部通路を流通してすべての電池セル２と熱交換した後、一方の拘束部材内部の拘束部材内通路４２を介して流出配管内に流出する。これにより、電池積層体に含まれるすべての電池セル２とセル間部１４０との熱伝達性能を高めるように拘束する拘束機能と、それぞれの拘束部材と隣接する電池セル２に対する温調機能とを発揮する一組の拘束部材を提供できる。 One of the restraint members adjacent to the battery cell 2 at one end of the set of restraint members has an inflow side connecting portion 40a to which a supply pipe for supplying a heat medium to the passage 40 in the restraint member can be connected. Have. Further, the other restraint member adjacent to the battery cell 2 at the other end has an outflow side connecting portion 42c to which an outflow pipe from which the heat medium flows out from the passage 42 in the restraint member can be connected. According to this configuration, the heat medium flowing into the restraint member inner passage 40 inside one of the restraint members from the supply pipe flows through the inner passage of the heat medium passage member 4 and exchanges heat with all the battery cells 2. , It flows out into the outflow pipe through the passage 42 in the restraint member inside one of the restraint members. As a result, a restraint function for restraining all the battery cells 2 included in the battery laminate and the inter-cell portion 140 so as to enhance the heat transfer performance, and a temperature control function for each restraint member and the adjacent battery cell 2 are provided. It is possible to provide a set of restraining members to exert.

（第３実施形態）
第３実施形態について図６を参照して説明する。図６において前述の実施形態と同様の構成であるものは同一の符号を付し、同様の作用、効果を奏するものである。第３実施形態で特に説明しない構成、作用、効果については、前述の実施形態と同様であり、前述の実施形態と異なる点についてのみ説明する。 (Third Embodiment)
The third embodiment will be described with reference to FIG. In FIG. 6, those having the same configuration as the above-described embodiment are designated by the same reference numerals and have the same actions and effects. The configurations, actions, and effects that are not particularly described in the third embodiment are the same as those in the above-described embodiment, and only the points different from those in the above-described embodiment will be described.

図６に示すように、第３実施形態の組電池３００は、第２実施形態に対して熱媒体通路部材２０４の構成が相違している。組電池３００が備える熱媒体通路部材２０４は、電池積層体を構成する隣り合う電池セル２間のすべてのうち、セル間部１４０が特定の電池セル２間のみに介在する構成である。したがって、熱媒体通路部材２０４には、少なくとも１個のセル間部１４０を備える構成を含んでいる。 As shown in FIG. 6, the assembled battery 300 of the third embodiment has a different configuration of the heat medium passage member 204 from the second embodiment. The heat medium passage member 204 included in the assembled battery 300 has a configuration in which the inter-cell portion 140 is interposed only between the specific battery cells 2 among all the adjacent battery cells 2 constituting the battery laminate. Therefore, the heat medium passage member 204 includes a configuration including at least one inter-cell portion 140.

（第４実施形態）
第４実施形態について図７を参照して説明する。図７において前述の実施形態と同様の構成であるものは同一の符号を付し、同様の作用、効果を奏するものである。第４実施形態で特に説明しない構成、作用、効果については、前述の実施形態と同様であり、前述の実施形態と異なる点についてのみ説明する。 (Fourth Embodiment)
The fourth embodiment will be described with reference to FIG. In FIG. 7, those having the same configuration as the above-described embodiment are designated by the same reference numerals and have the same actions and effects. The configurations, actions, and effects that are not particularly described in the fourth embodiment are the same as those in the above-described embodiment, and only the points different from those in the above-described embodiment will be described.

図７に示すように、第４実施形態の組電池４００は、前述の実施形態における拘束部材である拘束プレート３と同様の機能を有する積層管部４４と積層管部４５を備えている。したがって、組電池４００は拘束プレート３を備えずとも、前述の実施形態と同様の作用効果を奏する一組の拘束部材を備えることになる。 As shown in FIG. 7, the assembled battery 400 of the fourth embodiment includes a laminated pipe portion 44 and a laminated pipe portion 45 having the same functions as the restraining plate 3 which is the restraining member in the above-described embodiment. Therefore, even if the assembled battery 400 is not provided with the restraint plate 3, it is provided with a set of restraint members having the same effects as those in the above-described embodiment.

積層管部４４は、熱媒体通路部材３０４を形成する管が電池積層体の一方端部側においてそれぞれ複数回折り返されて積層形成された部分である。積層管部４４は、上流側における拘束部材を構成する。積層管部４４の内部通路は上流側の拘束部材内通路である。積層管部４４は、電池積層体において一方端部に位置する電池セル２に対して熱伝達可能なように一体に設置されている。積層管部４４と一方端部の電池セル２とは接触している構成でもよいし、電池セル２と積層管部４４との間に熱伝導性を有するスペーサ部材を介在させて、スペーサ部材を電池セル２と積層管部４４とによって挟み込むように構成してもよい。 The laminated tube portion 44 is a portion in which a plurality of tubes forming the heat medium passage member 304 are folded back on one end side of the battery laminate and formed in a laminated manner. The laminated pipe portion 44 constitutes a restraint member on the upstream side. The internal passage of the laminated pipe portion 44 is a passage in the restraint member on the upstream side. The laminated tube portion 44 is integrally installed so that heat can be transferred to the battery cell 2 located at one end of the battery laminated body. The laminated tube portion 44 and the battery cell 2 at one end may be in contact with each other, or a spacer member having thermal conductivity is interposed between the battery cell 2 and the laminated tube portion 44 to provide the spacer member. It may be configured so as to be sandwiched between the battery cell 2 and the laminated tube portion 44.

積層管部４５は、熱媒体通路部材３０４を形成する管が電池積層体の他方端部側においてそれぞれ複数回折り返されて積層形成された部分である。積層管部４５は、下流側における拘束部材を構成する。積層管部４５の内部通路は下流側の拘束部材内通路である。積層管部４５は、電池積層体において他方端部に位置する電池セル２に対して熱伝達可能なように一体に設置されている。積層管部４５と他方端部の電池セル２とは接触している構成でもよいし、電池セル２と積層管部４５との間に熱伝導性を有するスペーサ部材を介在させて、スペーサ部材を電池セル２と積層管部４５とによって挟み込むように構成してもよい。したがって、電池セル２と熱交換する熱媒体が流れる熱媒体通路部材３０４の内部通路は、一組の拘束部材のそれぞれの内部に設けられた拘束部材内通路に連結されている。 The laminated tube portion 45 is a portion in which the tubes forming the heat medium passage member 304 are laminated and formed by being folded back a plurality of tubes on the other end side of the battery laminate. The laminated pipe portion 45 constitutes a restraint member on the downstream side. The internal passage of the laminated pipe portion 45 is a passage in the restraint member on the downstream side. The laminated tube portion 45 is integrally installed so that heat can be transferred to the battery cell 2 located at the other end of the battery laminate. The laminated tube portion 45 and the battery cell 2 at the other end may be in contact with each other, or a spacer member having thermal conductivity is interposed between the battery cell 2 and the laminated tube portion 45 to provide the spacer member. It may be configured to be sandwiched between the battery cell 2 and the laminated tube portion 45. Therefore, the internal passage of the heat medium passage member 304 through which the heat medium that exchanges heat with the battery cell 2 flows is connected to the internal passage of the restraint member provided inside each of the set of restraint members.

第４実施形態の組電池４００によれば、熱媒体通路部材３０４の内部通路は、一組の拘束部材のそれぞれの内部に設けられた拘束部材内通路に連結されている。一組の拘束部材は、熱媒体通路部材３０４を形成する管が電池積層体の両側においてそれぞれ複数回折り返されて積層された積層管部４４，４５によって形成されている。これによれば、積層方向の両側の積層管部４４と積層管部４５が複数の電池セル２を積層方向に拘束する拘束機能と電池セル２を温度調整可能な温調機能とを併せ持つ組電池４００を提供できる。さらに組電池４００は、一方端部側である上流側に位置する電池セル２と他方端部側である下流側に位置する電池セル２とについて温調効果が大きく、拘束プレートを用いなくても電池積層体を拘束するための剛性を確保できる。 According to the assembled battery 400 of the fourth embodiment, the internal passage of the heat medium passage member 304 is connected to the internal passage of the restraint member provided inside each of the set of restraint members. The set of restraint members is formed by laminated tube portions 44, 45 in which a plurality of tubes forming the heat medium passage member 304 are folded back and laminated on both sides of the battery laminate. According to this, an assembled battery having both a restraining function in which the laminated tube portions 44 and the laminated tube portions 45 on both sides in the stacking direction restrain a plurality of battery cells 2 in the stacking direction and a temperature control function capable of adjusting the temperature of the battery cells 2. 400 can be provided. Further, the assembled battery 400 has a large temperature control effect on the battery cell 2 located on the upstream side, which is one end side, and the battery cell 2 located on the downstream side, which is the other end side, and does not require the use of a restraint plate. Rigidity for restraining the battery laminate can be secured.

（他の実施形態）
この明細書の開示は、例示された実施形態に制限されない。開示は、例示された実施形態と、それらに基づく当業者による変形態様を包含する。例えば、開示は、実施形態において示された部品、要素の組み合わせに限定されず、種々変形して実施することが可能である。開示は、多様な組み合わせによって実施可能である。開示は、実施形態に追加可能な追加的な部分をもつことができる。開示は、実施形態の部品、要素が省略されたものを包含する。開示は、一つの実施形態と他の実施形態との間における部品、要素の置き換え、または組み合わせを包含する。開示される技術的範囲は、実施形態の記載に限定されない。開示される技術的範囲は、特許請求の範囲の記載によって示され、さらに特許請求の範囲の記載と均等の意味および範囲内でのすべての変更を含むものと解されるべきである。 (Other embodiments)
Disclosure of this specification is not limited to the illustrated embodiments. The disclosure includes exemplary embodiments and modifications by those skilled in the art based on them. For example, the disclosure is not limited to the combination of parts and elements shown in the embodiment, and can be implemented in various modifications. Disclosure can be carried out in various combinations. The disclosure can have additional parts that can be added to the embodiment. The disclosure includes parts and elements of the embodiment omitted. Disclosures include replacements or combinations of parts, elements between one embodiment and another. The technical scope disclosed is not limited to the description of the embodiments. The technical scope disclosed is indicated by the description of the scope of claims, and should be understood to include all modifications within the meaning and scope equivalent to the description of the scope of claims.

前述の実施形態における組電池は、電池セル２とセル間部１４０とを交互に積層した形成された電池の積層体であるが、明細書に開示の目的を達成可能な組電池は、この形態に限定されない。この組電池は、電池積層体を構成する隣り合う電池セル２間のすべてのうち、セル間部１４０が特定の電池セル２間のみに介在する構成を備えるものを含んでいる。また、組電池１００には、少なくとも１個のセル間部１４０を備えている。 The assembled battery in the above-described embodiment is a laminated body of batteries formed by alternately stacking battery cells 2 and inter-cell portions 140, and an assembled battery capable of achieving the object disclosed in the specification is in this embodiment. Not limited to. This assembled battery includes a battery having a structure in which the inter-cell portion 140 is interposed only between specific battery cells 2 among all the adjacent battery cells 2 constituting the battery laminate. Further, the assembled battery 100 includes at least one inter-cell portion 140.

２…電池セル、 ３…拘束プレート（拘束部材）
４，１０４，２０４，３０４…熱媒体通路部材、 ６…ボルト（固定具）
４０，４２…拘束部材内通路
４４，４５…積層管部（拘束部材）
１００，２００，３００，４００…組電池 2 ... Battery cell, 3 ... Restraint plate (restraint member)
4,104,204,304 ... Heat medium passage member, 6 ... Bolt (fixing tool)
40, 42 ... Passage in the restraint member 44, 45 ... Laminated pipe portion (restraint member)
100, 200, 300, 400 ... Batteries

Claims (7)

電池積層体を形成する複数の電池セル（２）と、
内部通路を流通する熱媒体と前記電池セルとが熱交換するように設けられた熱媒体通路部材（１０４；２０４；３０４）と、
熱伝導性を有し、前記電池積層体に対して積層方向の両側から拘束力を作用させるように前記電池積層体の前記両側に前記電池セルに対して熱伝達可能に設けられた一組の拘束部材（３；４４，４５）と、
を備え、
前記熱媒体通路部材の前記内部通路は、一組の前記拘束部材のうち少なくとも一つの前記拘束部材の内部に設けられた拘束部材内通路（４０，４２）に連結されており、
前記熱媒体通路部材は、前記積層方向に隣り合う前記電池セルと前記電池セルの間に介在し前記内部通路を流通する熱媒体と前記電池セルとが熱交換するセル間部（１４０）と、前記積層方向に隣り合う前記セル間部と前記セル間部とを連結し前記内部通路を前記熱媒体が流れる連結部（１４１）と、を備えている組電池。 A plurality of battery cells (2) forming a battery laminate,
A heat medium passage member ( 104; 204; 304) provided so that the heat medium flowing through the internal passage and the battery cell exchange heat with each other.
A set that has thermal conductivity and is provided on both sides of the battery laminate so as to transfer heat to the battery cells so as to exert a binding force on the battery laminate from both sides in the stacking direction. Restraint members (3; 44, 45) and
With
The internal passage of the heat medium passage member is connected to a passage (40, 42) in the restraint member provided inside at least one of the restraint members in the set of the restraint members .
The heat medium passage member includes an inter-cell portion (140) that is interposed between the battery cells adjacent to each other in the stacking direction and exchanges heat between the heat medium flowing through the internal passage and the battery cells. An assembled battery including a connecting portion (141) that connects the inter-cell portions adjacent to each other in the stacking direction and allows the heat medium to flow through the internal passage. 前記拘束部材は、前記熱媒体を前記拘束部材内通路に供給するための供給配管を接続可能な流入側接続部（４０ａ）と、前記拘束部材内通路から前記熱媒体が流出する流出配管を接続可能な流出側接続部（４２ｃ）と、を内部に有している請求項１に記載の組電池。 The restraint member connects an inflow side connection portion (40a) to which a supply pipe for supplying the heat medium to the restraint member inner passage can be connected and an outflow pipe from which the heat medium flows out from the restraint member inner passage. The assembled battery according to claim 1, which has a possible outflow side connection portion (42c) inside. 前記拘束部材を設置部（１０）に固定するための固定具（６）を備え、
前記供給配管の出口部と前記流入側接続部は、前記固定具の固定力によって前記拘束部材が前記設置部に対して接近する方向に嵌り合っている請求項２に記載の組電池。 A fixture (6) for fixing the restraint member to the installation portion (10) is provided.
The assembled battery according to claim 2, wherein the outlet portion of the supply pipe and the inflow side connection portion are fitted in a direction in which the restraining member approaches the installation portion by the fixing force of the fixture. 前記拘束部材を設置部（１０）に固定するための固定具（６）を備え、
前記流出配管の入口部と前記流出側接続部は、前記固定具の固定力によって前記拘束部材が前記設置部に対して接近する方向に嵌り合っている請求項２に記載の組電池。 A fixture (6) for fixing the restraint member to the installation portion (10) is provided.
The assembled battery according to claim 2, wherein the inlet portion of the outflow pipe and the outflow side connection portion are fitted in a direction in which the restraining member approaches the installation portion by the fixing force of the fixture. 前記セル間部と前記連結部は、前記電池積層体における前記積層方向の一方端部から他方端部にかけてすべての前記電池セルと熱交換する前記熱媒体が流下する一連の前記内部通路を形成するように設けられている請求項１に記載の組電池。 The inter-cell portion and the connecting portion form a series of internal passages through which the heat medium that exchanges heat with all the battery cells flows down from one end to the other end in the stacking direction of the battery laminate. The assembled battery according to claim 1 , which is provided as described above. 一組の前記拘束部材のうち、前記一方端部の前記電池セルに隣接する一方の前記拘束部材は、前記熱媒体を前記拘束部材内通路に供給するための供給配管を接続可能な流入側接続部（４０ａ）を内部に有し、前記他方端部の前記電池セルに隣接する他方の前記拘束部材は、前記拘束部材内通路から前記熱媒体が流出する流出配管を接続可能な流出側接続部（４２ｃ）を内部に有している請求項５に記載の組電池。 Of the set of restraint members, one of the restraint members adjacent to the battery cell at one end is connected to an inflow side to which a supply pipe for supplying the heat medium to the passage in the restraint member can be connected. The other restraint member, which has a portion (40a) inside and is adjacent to the battery cell at the other end portion, is an outflow side connection portion to which an outflow pipe from which the heat medium flows out from the passage in the restraint member can be connected. The assembled battery according to claim 5 , which has (42c) inside. 電池積層体を形成する複数の電池セル（２）と、
内部通路を流通する熱媒体と前記電池セルとが熱交換するように設けられた熱媒体通路部材（３０４）と、
熱伝導性を有し、前記電池積層体に対して積層方向の両側から拘束力を作用させるように前記電池積層体の前記両側に前記電池セルに対して熱伝達可能に設けられた一組の拘束部材（４４，４５）と、
を備え、
前記熱媒体通路部材の前記内部通路は、一組の前記拘束部材のそれぞれの内部に設けられた拘束部材内通路に連結されており、
一組の前記拘束部材は、前記熱媒体通路部材を形成する管が前記電池積層体の前記両側においてそれぞれ複数回折り返されて積層された積層管部によって形成されている組電池。 A plurality of battery cells (2) forming a battery laminate,
A heat medium passage member (304) provided so that the heat medium flowing through the internal passage and the battery cell exchange heat with each other.
A set that has thermal conductivity and is provided on both sides of the battery laminate so as to transfer heat to the battery cells so as to exert a binding force on the battery laminate from both sides in the stacking direction. Restraint members (44, 45) and
With
The internal passage of the heat medium passage member is connected to a passage in the restraint member provided inside each of the set of the restraint members.
A pair of said restraining member, assembled battery tubes forming the heat medium passage member that has been formed by laminating tube portion which are laminated is folded back a plurality of times, respectively, in the sides of the cell stack.
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