JP2006179293A - Mount structure of fuel cell - Google Patents

Mount structure of fuel cell Download PDF

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JP2006179293A
JP2006179293A JP2004370934A JP2004370934A JP2006179293A JP 2006179293 A JP2006179293 A JP 2006179293A JP 2004370934 A JP2004370934 A JP 2004370934A JP 2004370934 A JP2004370934 A JP 2004370934A JP 2006179293 A JP2006179293 A JP 2006179293A
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fuel cell
case
connecting member
mount structure
main body
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JP5115776B2 (en
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Hideyuki Tanaka
秀幸 田中
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Toyota Motor Corp
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Toyota Motor Corp
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    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mount structure of a fuel cell capable of achieving the reduction of weight. <P>SOLUTION: This mount structure of a fuel cell is provided with: a plurality of first connection members 65 mounted on the upper surface of a bottom plate of a fuel cell case 60 for housing a fuel cell body 10 therein for supporting the fuel cell body 10 at parts different from one another; and second connection members 66 positioned outside the fuel cell case 60 and under the first connection members 65 for supporting the undersurface of the bottom plate of the fuel cell case 60 on a structure (base) 68. The fuel cell body 10 is supported to the fuel cell case 60 at three points by the first connection members 65. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、燃料電池（たとえば、固体高分子電解質型燃料電池）をマウントする構造体に関し、特に車両に搭載するのに好適なマウント構造体に関する。   The present invention relates to a structure for mounting a fuel cell (for example, a solid polymer electrolyte fuel cell), and more particularly to a mount structure suitable for mounting on a vehicle.

固体高分子電解質型燃料電池は、膜−電極アッセンブリ（ＭＥＡ：Membrane-Electrode Assembly ）とセパレータとからなるセルを１層以上重ねてモジュールとし、モジュールを積層して構成される。ＭＥＡは、イオン交換膜からなる電解質膜とこの電解質膜の一面に配置された触媒層からなる電極（アノード）および電解質膜の他面に配置された触媒層からなる電極（カソード）とからなる。セル積層体のセル積層方向両端に、ターミナル（電極板）、インシュレータ、エンドプレートを配置し、セル積層体をセル積層方向に締め付け、セル積層体の外側でセル積層方向に延びる締結部材（たとえば、テンションプレート）とボルトにて固定して、スタックが形成される。   A solid polymer electrolyte fuel cell is configured by stacking one or more cells each including a membrane-electrode assembly (MEA) and a separator to form a module, and stacking the modules. The MEA includes an electrolyte membrane made of an ion exchange membrane, an electrode (anode) made of a catalyst layer arranged on one surface of the electrolyte membrane, and an electrode (cathode) made of a catalyst layer arranged on the other surface of the electrolyte membrane. Terminals (electrode plates), insulators, and end plates are arranged at both ends of the cell stack in the cell stacking direction, the cell stack is clamped in the cell stacking direction, and a fastening member (for example, A stack is formed by fixing with tension plates) and bolts.

図８は上記のような燃料電池を車両等にマウントするためのマウント構造体である。燃料電池本体１は燃料電池ケース２内において支持部３を介して３点で支持され、燃料電池ケース２は車両へ取付けられる構造材４に対して取付け部５を介して４点で支持されている。燃料電池本体１が燃料電池ケース２に収容されていることで、気密・液密性が高い。
特開２００２−３６７６５１号公報 FIG. 8 shows a mount structure for mounting the fuel cell as described above on a vehicle or the like. The fuel cell body 1 is supported at three points in the fuel cell case 2 via a support portion 3, and the fuel cell case 2 is supported at four points via a mounting portion 5 with respect to a structural material 4 attached to the vehicle. Yes. Since the fuel cell main body 1 is accommodated in the fuel cell case 2, the airtightness and liquid tightness are high.
JP 2002-367651 A

このような従来の構成においては、燃料電池ケース２が燃料電池本体１を支持する位置と、構造体４が燃料電池ケース２を支持する位置とが異なっている。したがって、曲げモーメントに対する強度を持たせるために、燃料電池ケース２の下半分を構成するロアケース２ａを厚肉化し、構造体４と溶接して一体化させる必要があった。そのため、燃料電池ケース２が重いという問題があった。   In such a conventional configuration, the position where the fuel cell case 2 supports the fuel cell main body 1 and the position where the structure 4 supports the fuel cell case 2 are different. Therefore, in order to give strength against the bending moment, the lower case 2a constituting the lower half of the fuel cell case 2 needs to be thickened and welded to the structure 4 to be integrated. Therefore, there is a problem that the fuel cell case 2 is heavy.

本発明は上記事情に鑑みて成されたものであり、軽量化を実現する燃料電池のマウント構造体を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fuel cell mount structure that achieves weight reduction.

本発明においては上記の課題を解決するために以下の手段を採用した。
請求項１に記載の燃料電池マウント構造体は、燃料電池本体が収容される燃料電池ケース底板の上面に設けられ、前記燃料電池本体を支持する第１連結部材と、前記燃料電池ケースの外側であって前記第１連結部材の下方に位置し、前記燃料電池ケース底板の下面を基台上で支持する第２連結部材とを備えたことを特徴とする。 In the present invention, the following means are adopted in order to solve the above problems.
The fuel cell mount structure according to claim 1 is provided on an upper surface of a fuel cell case bottom plate in which the fuel cell main body is accommodated, and on the outside of the fuel cell case, a first connecting member that supports the fuel cell main body. And a second connecting member positioned below the first connecting member and supporting the lower surface of the fuel cell case bottom plate on a base.

本発明によれば、第１連結部材の重力作用方向（鉛直方向）下方に第２連結部材が位置し、燃料電池本体の荷重は第１連結部材から第２連結部材を介して基台に作用する。第１連結部材及び第２連結部材は複数の連結部材であっても、例えば「ロ」の字状をなす単一の連結部材であってもよい。   According to the present invention, the second connecting member is positioned below the gravity direction (vertical direction) of the first connecting member, and the load of the fuel cell body acts on the base from the first connecting member via the second connecting member. To do. The first connecting member and the second connecting member may be a plurality of connecting members or, for example, a single connecting member having a “B” shape.

請求項２に記載の発明は、請求項１に記載の燃料電池マウント構造体において、前記燃料電池本体は、前記第１連結部材によって３点で前記燃料電池ケースに支持されることを特徴とする。   According to a second aspect of the present invention, in the fuel cell mount structure according to the first aspect, the fuel cell main body is supported on the fuel cell case at three points by the first connecting member. .

積層された複数の燃料電池モジュールに螺嵌部材（ボルト）を貫通させて螺嵌によって締結する燃料電池本体では、両端間にねじれが生ずる。本発明によれば、３点で燃料電池本体を支持するので、安定して燃料電池本体を支持できる平面が一つに定まる。   In a fuel cell main body that is screwed into a plurality of stacked fuel cell modules through threaded fitting members (bolts), twisting occurs between both ends. According to the present invention, since the fuel cell main body is supported at three points, one plane that can stably support the fuel cell main body is determined.

請求項３に記載の発明は、請求項１または２に記載の燃料電池マウント構造体において、前記第２連結部材が前記燃料電池ケースに接する面積は、前記第１連結部材が前記燃料電池ケースに接する面積よりも大きいことを特徴とする。   According to a third aspect of the present invention, in the fuel cell mount structure according to the first or second aspect, the area where the second connecting member is in contact with the fuel cell case is such that the first connecting member is in the fuel cell case. It is characterized by being larger than the contact area.

本発明によれば、第２連結部材の支持面積が大きいことで、より安定して燃料電池本体を支持することができる。   According to the present invention, the fuel cell main body can be supported more stably because the support area of the second connecting member is large.

請求項４に記載の発明は、請求項１から３のいずれかに記載の燃料電池マウント構造体において、前記燃料電池は、積層された複数の燃料電池モジュールが一対のエンドプレートによって挟み込まれて構成され、該エンドプレートの下端が前記第１連結部材によって支持されることを特徴とする。   According to a fourth aspect of the present invention, in the fuel cell mount structure according to any one of the first to third aspects, the fuel cell includes a plurality of stacked fuel cell modules sandwiched between a pair of end plates. The lower end of the end plate is supported by the first connecting member.

請求項５に記載の発明は、請求項１から４のいずれかに記載の燃料電池のマウント構造体において、前記燃料電池ケースは、互いに固定されたアッパケースとロアケースとを含むことを特徴とする。   According to a fifth aspect of the present invention, in the fuel cell mount structure according to any one of the first to fourth aspects, the fuel cell case includes an upper case and a lower case fixed to each other. .

本発明によれば、燃料電池ケース内にコネクタやセルモニタ等を収容することができ、高い安全性・密閉性を得ることができる。   According to the present invention, a connector, a cell monitor, and the like can be accommodated in the fuel cell case, and high safety and sealing performance can be obtained.

本発明においては以下の効果を得ることができる。
第１連結部材と第２連結部材とが同じ位置で燃料電池本体および燃料電池ケースを支持しているので、燃料電池ケースの底板に対する曲げモーメントを減らすことができる。したがって燃料電池ケースの薄肉化を実現でき、燃料電池ケースを軽量化、小型化することができる。 In the present invention, the following effects can be obtained.
Since the first connecting member and the second connecting member support the fuel cell main body and the fuel cell case at the same position, the bending moment with respect to the bottom plate of the fuel cell case can be reduced. Therefore, the fuel cell case can be thinned, and the fuel cell case can be reduced in weight and size.

次に、本発明の一実施形態について図面を参照して説明する。図１に示したものは本発明の一実施形態である燃料電池マウント構造体５５である。まず、本燃料電池マウント構造体５５によって固定される燃料電池の一般的な構造について図２を参照して説明する。なお、以下においては固体高分子電解質型燃料電池を用いて説明するが、下記の例に限定されるものではない。   Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a fuel cell mount structure 55 according to an embodiment of the present invention. First, a general structure of a fuel cell fixed by the fuel cell mount structure 55 will be described with reference to FIG. In the following description, a solid polymer electrolyte fuel cell will be described, but the present invention is not limited to the following example.

図２に示した燃料電池本体１０は、膜−電極アッセンブリ（ＭＥＡ：Membrane-Electrode Assembly ）とセパレータとからなるセルを１層以上重ねてモジュール１９とし、モジュール１９を積層したセル積層体から構成される。
セル積層体のセル積層方向両端に、ターミナル（電極板）２０、インシュレータ２１、エンドプレート２２Ａ、２２Ｂを配置し、セル積層体をセル積層方向に締め付け、セル積層体の外側でセル積層方向に延びる締結部材２４（たとえば、テンションプレート）とボルト２５にて固定して、スタック２３が形成される。スタック２３の一端側には、エンドプレート２２Ａとインシュレータ２１との間にプレッシャプレート３２が設けられ、プレッシャプレート３２とエンドプレート２２Ａとの間にばね機構３３が設けられてセルにかかる荷重の変動を抑制している。セル電圧は約１ボルトであるので、車両に必要な約４００ボルトの電圧を得るには、たとえば、約２００個のセルを積層して電気的に直列接続し、セル積層体を並列に配して電気的に直列に接続し、並列配置のセル積層体を共通のエンドプレートで挟んでスタック２３とする。 The fuel cell main body 10 shown in FIG. 2 is composed of a cell stack in which one or more layers of a membrane-electrode assembly (MEA) and a separator are stacked to form a module 19 and the modules 19 are stacked. The
Terminals (electrode plates) 20, insulators 21, end plates 22A and 22B are arranged at both ends of the cell stack in the cell stack direction, the cell stack is clamped in the cell stack direction, and extends in the cell stack direction outside the cell stack. The stack 23 is formed by fixing with fastening members 24 (for example, tension plates) and bolts 25. On one end side of the stack 23, a pressure plate 32 is provided between the end plate 22A and the insulator 21, and a spring mechanism 33 is provided between the pressure plate 32 and the end plate 22A to change the load applied to the cell. Suppressed. Since the cell voltage is about 1 volt, in order to obtain the voltage of about 400 volt required for the vehicle, for example, about 200 cells are stacked and electrically connected in series, and the cell stack is arranged in parallel. Are connected in series, and the stacked cell stacks are sandwiched between common end plates to form a stack 23.

図３、図４に示すように、燃料電池本体１０は、車両客室（キャビン）前方または後方の車体空間３４、３５（客室前方空間３４はエンジンコンパートメント、客室後方空間３５はラゲージルーム）内に搭載される。その場合、燃料電池本体１０は、車両客室前方空間３４内で、または客室後方空間３５内で客室３６側に寄せて配置される。なお、図では燃料電池本体が車両床下に配置される場合も示しており、車両床下に配置された燃料電池本体を符号５０を付けて示してある。客室前方空間３４に設置する場合は、燃料電池本体はダッシュパネル３７のすぐ前に配置される。図では燃料電池本体１０は客室後方空間３５に設置されており、後部座席４０のすぐ後ろであってリヤバンパー４１の前方に配置されている。
燃料電池本体１０は、図１に示された燃料電池マウント構造体５５によって車両サイドメンバー４２に搭載、固定される。客室前方の場合は、燃料電池スタック２３はフロントサイドメンバーに固定され、客室後方の場合は、燃料電池スタック２３はリヤフロアサイドメンバーに固定される。 As shown in FIGS. 3 and 4, the fuel cell body 10 is mounted in a vehicle body space 34, 35 in the front or rear of the vehicle cabin (cabin) (the cabin front space 34 is the engine compartment, and the cabin rear space 35 is the luggage room). Is done. In that case, the fuel cell main body 10 is arranged close to the cabin 36 in the vehicle cabin front space 34 or in the cabin rear space 35. The figure also shows the case where the fuel cell main body is arranged under the vehicle floor, and the fuel cell main body arranged under the vehicle floor is indicated by reference numeral 50. When installed in the passenger compartment front space 34, the fuel cell main body is disposed immediately in front of the dash panel 37. In the figure, the fuel cell main body 10 is installed in the passenger compartment rear space 35 and is disposed immediately behind the rear seat 40 and in front of the rear bumper 41.
The fuel cell main body 10 is mounted and fixed to the vehicle side member 42 by the fuel cell mount structure 55 shown in FIG. In the case of the front of the cabin, the fuel cell stack 23 is fixed to the front side member. In the case of the rear of the cabin, the fuel cell stack 23 is fixed to the rear floor side member.

次に、マウント構造体５５について詳細に説明する。
図１は燃料電池マウント構造体の側断面図、図５は燃料電池マウント構造体の概略斜視図である。図において、符号６０は内部に燃料電池本体１０が収容される燃料電池ケースであり、燃料電池ケース６０は上半分を構成するアッパケース６１と、下半分を構成するロアケース６２とが密閉状態で固定されていることにより高い気密・液密性を有する。燃料電池ケース６０には、燃料電池本体１０の他、コネクタやセルモニタなど燃料電池本体１０に付随する構成部材も収容されている。 Next, the mount structure 55 will be described in detail.
FIG. 1 is a side sectional view of a fuel cell mount structure, and FIG. 5 is a schematic perspective view of the fuel cell mount structure. In the figure, reference numeral 60 denotes a fuel cell case in which the fuel cell main body 10 is accommodated, and the fuel cell case 60 is fixed in a sealed state with an upper case 61 constituting the upper half and a lower case 62 constituting the lower half. Therefore, it has high air tightness and liquid tightness. In addition to the fuel cell main body 10, the fuel cell case 60 also accommodates components associated with the fuel cell main body 10 such as connectors and cell monitors.

燃料電池ケース６０のロアケース６２の底板上面には、互いに異なる個所で燃料電池本体１０をそれぞれ支持する複数の第１連結部材６５が設けられている。
燃料電池ケース６０は構造体（基台）６８によって支持され、構造材６８には、ロアケース６２底板の下面を、第１連結部材６５の下方にてそれぞれ支持する第２連結部材６６が設けられている。 On the upper surface of the bottom plate of the lower case 62 of the fuel cell case 60, a plurality of first connection members 65 that respectively support the fuel cell main body 10 at different locations are provided.
The fuel cell case 60 is supported by a structure (base) 68, and the structural member 68 is provided with a second connection member 66 for supporting the lower surface of the bottom plate of the lower case 62 below the first connection member 65. Yes.

これら第１連結部材６５および第２連結部材６６は、エンドプレート２２Ａ、２２Ｂの下端において、合計３個所において燃料電池スタック２３を支持している。燃料電池スタック２３はモジュール１９積層方向に不図示の螺嵌部材（ボルト）をエンドプレート２２Ａ側から挿入し、螺嵌によって締結する。このため、締結の際にエンドプレート２２Ａ、２２Ｂ間にねじれ（回転）が発生する。このため、ねじれの大きいエンドプレート２２Ａ側で１点、ねじれの小さいエンドプレート２２Ｂ側で２点で支持することで、燃料電池本体１０を一平面上に安定して支持することができる。   The first connecting member 65 and the second connecting member 66 support the fuel cell stack 23 at a total of three locations at the lower ends of the end plates 22A and 22B. In the fuel cell stack 23, a screw fitting member (bolt) (not shown) is inserted from the end plate 22A side in the module 19 stacking direction, and fastened by screw fitting. For this reason, twist (rotation) occurs between the end plates 22A and 22B at the time of fastening. For this reason, the fuel cell main body 10 can be stably supported on a single plane by supporting it at one point on the end plate 22A side having a large twist and two points on the end plate 22B side having a small twist.

次に、第１連結部材６５、第２連結部材６６の構造について詳細に説明する。図６は図１の要部を拡大して示した側断面であり、図７は図６のＡ−Ａ線に沿った断面図である。
第２連結部材６６は中央部６６ａが下方に延出した形状であり、中央部６６ａの上部両側にフランジ部６６ｂを備えている。中央部６６ａの下面は構造材（パイプ）６８に溶接され、上部のフランジ部６６ｂにおいて第１連結部材６５の座板６５ａとの間にロアケース６２を挟み込んだ状態でボルト７０およびナット７１により固定されている。
第１連結部材６５は、ボルト７０およびナット７１により固定された座板６５ａを備え、さらに座板６５ａにより固定された座台６５ｂを介して、エンドプレート２２Ｂにボルト７２が締め付けられることにより、燃料電池本体１０に第１連結部材６５が固定されている。 Next, the structure of the 1st connection member 65 and the 2nd connection member 66 is demonstrated in detail. 6 is a side cross-sectional view showing an enlarged main part of FIG. 1, and FIG. 7 is a cross-sectional view taken along line AA of FIG.
The second connecting member 66 has a shape in which the central portion 66a extends downward, and includes flange portions 66b on both upper sides of the central portion 66a. The lower surface of the central portion 66a is welded to a structural material (pipe) 68, and is fixed by bolts 70 and nuts 71 with the lower case 62 sandwiched between the upper flange portion 66b and the seat plate 65a of the first connecting member 65. ing.
The first connecting member 65 includes a seat plate 65a fixed by a bolt 70 and a nut 71, and the bolt 72 is fastened to the end plate 22B via a seat base 65b fixed by the seat plate 65a. A first connecting member 65 is fixed to the battery body 10.

なお、ロアケース６２には開口６２ａが設けられ、ボルト７２はロアケース６２の外側から固定することができるようになっている。
また、座板６５ａとボルト７２との間に絶縁体６５ｃが設けられていることにより、エンドプレート２２Ｂと燃料電池ケース６０との絶縁が確保されている。
さらに、第２連結部材６６とロアケース６２との間にガスケット等のシール材を介在させておけば、燃料電池ケース６０の密閉性を高めることができる。 The lower case 62 is provided with an opening 62 a so that the bolt 72 can be fixed from the outside of the lower case 62.
Further, since the insulator 65c is provided between the seat plate 65a and the bolt 72, insulation between the end plate 22B and the fuel cell case 60 is ensured.
Furthermore, if a sealing material such as a gasket is interposed between the second connecting member 66 and the lower case 62, the sealing performance of the fuel cell case 60 can be improved.

また、図６に示された第２連結部材６６から理解されるように、第２連結部材６６は第１連結部材６５より長く構成されている。すなわち、第２連結部材６６は第１連結部材６５がロアケース６２に固定される面積よりも、広い面積でロアケース６２を支持している。これにより安定して燃料電池本体を支持することができる。
第２連結部材６６は、その横断面形状における長手方向が車両の進行方向となるように配設することが好ましい。燃料電池本体１０は重量物であるため、車の加減速時に第２連結部材６６に作用する慣性力が大きい。したがって進行方向に横断面の長手方向を向けることで、燃料電池本体の重量と加減速に伴う慣性力との合力に対する剛性が増し、第２連結部材６６が安定して燃料電池本体１０を支持することができる。
なお、構造材６８の両端部にはカラー７５が溶接留めされ、カラー７５を介して車両側に固定される。 Further, as understood from the second connecting member 66 shown in FIG. 6, the second connecting member 66 is configured to be longer than the first connecting member 65. That is, the second connecting member 66 supports the lower case 62 with a larger area than the area where the first connecting member 65 is fixed to the lower case 62. As a result, the fuel cell main body can be stably supported.
The second connecting member 66 is preferably disposed so that the longitudinal direction in the cross-sectional shape thereof is the traveling direction of the vehicle. Since the fuel cell main body 10 is heavy, the inertial force acting on the second connecting member 66 during acceleration / deceleration of the vehicle is large. Therefore, by orienting the longitudinal direction of the cross section in the traveling direction, the rigidity against the resultant force of the weight of the fuel cell body and the inertial force accompanying acceleration / deceleration increases, and the second connecting member 66 stably supports the fuel cell body 10. be able to.
A collar 75 is welded to both ends of the structural member 68 and is fixed to the vehicle side via the collar 75.

このように構成されていることで、燃料電池本体１０の荷重が、第１連結部材６５から第２連結部材６６を経て構造材６８に支持された状態となっている。
なお、各図においては一方のエンドプレート２２Ｂの断面を示したが、他方のエンドプレート２２Ａ側は１個所で支持されていることを除いて図６、図７の構成と同様であるので説明を省略する。 With this configuration, the load of the fuel cell main body 10 is supported by the structural member 68 from the first connecting member 65 through the second connecting member 66.
In each figure, the cross section of one end plate 22B is shown, but the other end plate 22A side is the same as the configuration of FIGS. 6 and 7 except that it is supported at one place. Omitted.

このように、第１連結部材６５と第２連結部材６６とが同じ位置で燃料電池本体１０および燃料電池ケース６０を支持しているので、ロアケース６２の底板に対する曲げモーメントを減らせることができる。したがってロアケース６２を薄肉化することができて燃料電池ケース６０を軽量化、小型化することができる。
また、螺嵌部材（ボルト）による螺嵌によって締結するスタックにはエンドプレート２２Ａ、２２Ｂ間にねじれが生ずるが、上記のように３点で支持していることで、燃料電池スタック２３を平面で支持することができる。このとき、スタックの長手方向のうちねじれの大きなボルト挿入側（エンドプレート２２Ａ側）を１点で支持し、他側を２点で支持することが望ましい。
また、上記のように車両に設置される燃料電池の場合、重力に加えて車両の加速度が燃料電池に作用する。したがって、本実施形態のように第１連結部材６５と第２連結部材６６とが同じ位置で燃料電池スタック２３を支持することが特に有効である。 Thus, since the first connecting member 65 and the second connecting member 66 support the fuel cell main body 10 and the fuel cell case 60 at the same position, the bending moment of the lower case 62 with respect to the bottom plate can be reduced. Therefore, the lower case 62 can be thinned, and the fuel cell case 60 can be reduced in weight and size.
In addition, the stack that is fastened by screwing with a screw-fitting member (bolt) is twisted between the end plates 22A and 22B. However, as described above, the fuel cell stack 23 is planarly supported by being supported at three points. Can be supported. At this time, it is desirable to support the bolt insertion side (end plate 22A side) having a large twist in the longitudinal direction of the stack at one point and to support the other side at two points.
In the case of a fuel cell installed in a vehicle as described above, the acceleration of the vehicle acts on the fuel cell in addition to gravity. Therefore, it is particularly effective that the first connecting member 65 and the second connecting member 66 support the fuel cell stack 23 at the same position as in the present embodiment.

なお、燃料電池スタック２３のセル積層方向と構造材６８の長手方向との関係は特に限定されるものではない。上記の例ではセル積層方向と構造材６８が直交関係にあるが、平行関係でもよい。また、上記では構造材６８に燃料電池本体１０を支持させ、構造材６８をさらに車両側に固定している。しかしながら、第２連結部材６６を直接車両側に固定させる構成でもよい。さらにまた、構造材６８は２本でなくてもよく、燃料電池本体１０を支持できればいかなる構成であってもよい。
また、燃料電池ケース６０はアッパケース、ロアケースに分割されていなくてもよい。
さらに、第１連結部材６５及び第２連結部材６６を複数備える構成に限らず、これら連結部材６５，６６を例えば「ロ」の字状をなす単一の連結部材から構成してもよい。 The relationship between the cell stacking direction of the fuel cell stack 23 and the longitudinal direction of the structural member 68 is not particularly limited. In the above example, the cell stacking direction and the structural material 68 are orthogonal, but may be parallel. In the above description, the fuel cell body 10 is supported by the structural material 68, and the structural material 68 is further fixed to the vehicle side. However, the structure which fixes the 2nd connection member 66 to the vehicle side directly may be sufficient. Furthermore, the number of structural members 68 is not limited to two, and any structure may be used as long as the fuel cell main body 10 can be supported.
Further, the fuel cell case 60 may not be divided into an upper case and a lower case.
Furthermore, not only the structure provided with the 1st connection member 65 and the 2nd connection member 66 but these connection members 65 and 66 may be comprised from the single connection member which makes a "B" shape, for example.

本発明の一実施形態として示した燃料電池マウント構造体の断面図である。It is sectional drawing of the fuel cell mount structure shown as one Embodiment of this invention. 燃料電池の構造について示した全体概略図である。1 is an overall schematic diagram showing the structure of a fuel cell. 本実施形態の燃料電池マウント構造体が用いられる車両の概略平面図である。1 is a schematic plan view of a vehicle in which a fuel cell mount structure according to an embodiment is used. 図３の車両の概略断面図である。It is a schematic sectional drawing of the vehicle of FIG. 燃料電池マウント構造体の概略斜視図である。It is a schematic perspective view of a fuel cell mount structure. 図１の要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG. 図６のＡ−Ａ線に沿った断面図である。It is sectional drawing along the AA line of FIG. 従来の燃料電池マウント構造体を示した側断面図である。FIG. 6 is a side sectional view showing a conventional fuel cell mount structure.

符号の説明Explanation of symbols

１０…燃料電池本体、２３…燃料電池スタック、６０…燃料電池ケース、６１…アッパケース、６２…ロアケース、６５…第１連結部材、６６…第２連結部材、６８…構造材（基台）   DESCRIPTION OF SYMBOLS 10 ... Fuel cell main body, 23 ... Fuel cell stack, 60 ... Fuel cell case, 61 ... Upper case, 62 ... Lower case, 65 ... 1st connection member, 66 ... 2nd connection member, 68 ... Structural material (base)

Claims (5)

燃料電池本体が収容される燃料電池ケース底板の上面に設けられ、前記燃料電池本体を支持する第１連結部材と、前記燃料電池ケースの外側であって前記第１連結部材の下方に位置し、前記燃料電池ケース底板の下面を基台上で支持する第２連結部材とを備えたことを特徴とする燃料電池マウント構造体。   A first connection member that is provided on an upper surface of a fuel cell case bottom plate in which the fuel cell main body is housed and supports the fuel cell main body; and is located outside the fuel cell case and below the first connection member; A fuel cell mount structure comprising: a second connecting member that supports a lower surface of the fuel cell case bottom plate on a base. 前記燃料電池本体は、前記第１連結部材によって３点で前記燃料電池ケースに支持されることを特徴とする請求項１に記載の燃料電池マウント構造体。   The fuel cell mount structure according to claim 1, wherein the fuel cell body is supported by the fuel cell case at three points by the first connecting member. 前記第２連結部材が前記燃料電池ケースに接する面積は、前記第１連結部材が前記燃料電池ケースに接する面積よりも大きいことを特徴とする請求項１または２に記載の燃料電池マウント構造体。   3. The fuel cell mount structure according to claim 1, wherein an area where the second connecting member is in contact with the fuel cell case is larger than an area where the first connecting member is in contact with the fuel cell case. 前記燃料電池は、積層された複数の燃料電池モジュールが一対のエンドプレートによって挟み込まれて構成され、該エンドプレートの下端が前記第１連結部材によって支持されることを特徴とする請求項１から３のいずれかに記載の燃料電池マウント構造体。   4. The fuel cell according to claim 1, wherein a plurality of stacked fuel cell modules are sandwiched between a pair of end plates, and a lower end of the end plate is supported by the first connecting member. The fuel cell mount structure according to any one of the above. 前記燃料電池ケースは、互いに固定されたアッパケースとロアケースとを含むことを特徴とする請求項１から４のいずれかに記載の燃料電池のマウント構造体。   The fuel cell mount structure according to any one of claims 1 to 4, wherein the fuel cell case includes an upper case and a lower case fixed to each other.
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CN102985464B (en) 2010-06-29 2015-04-01 三菱瓦斯化学株式会社 Polyamide compound
KR101821310B1 (en) 2010-12-27 2018-01-23 미쯔비시 가스 케미칼 컴파니, 인코포레이티드 Polyamide composition

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JP2002367651A (en) * 2001-06-11 2002-12-20 Toyota Motor Corp Fuel cell housing case

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JPH07249426A (en) * 1994-03-11 1995-09-26 Toyota Motor Corp Fuel cell and manufacture thereof, and housing case for fuel cell
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Publication number Priority date Publication date Assignee Title
JP2009170169A (en) * 2008-01-11 2009-07-30 Toyota Motor Corp Fuel cell and its on-board structure
JP2010010010A (en) * 2008-06-30 2010-01-14 Honda Motor Co Ltd Fuel-cell stack
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JP2015123800A (en) * 2013-12-25 2015-07-06 トヨタ自動車株式会社 Vehicle panel structure

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