JP4650010B2 - On-vehicle fuel cell mounting structure - Google Patents

On-vehicle fuel cell mounting structure Download PDF

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JP4650010B2
JP4650010B2 JP2005031831A JP2005031831A JP4650010B2 JP 4650010 B2 JP4650010 B2 JP 4650010B2 JP 2005031831 A JP2005031831 A JP 2005031831A JP 2005031831 A JP2005031831 A JP 2005031831A JP 4650010 B2 JP4650010 B2 JP 4650010B2
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fuel cell
vehicle
reinforcing member
cell case
floor panel
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JP2006218894A (en
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治久 新美
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Toyota Motor Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/71—Arrangement of fuel cells within vehicles specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B60L50/72—Constructional details of fuel cells specially adapted for electric vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
    • H01M8/2475—Enclosures, casings or containers of fuel cell stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0422—Arrangement under the front seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

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  • Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Fuel Cell (AREA)
  • Body Structure For Vehicles (AREA)

Description

本発明は、燃料電池ケースに収納された状態で車両に搭載される車載型燃料電池の車両搭載構造に関する。   The present invention relates to a vehicle mounting structure for a vehicle-mounted fuel cell that is mounted on a vehicle while being housed in a fuel cell case.

電気自動車の駆動用電源として、水素を燃料として発電する車載型燃料電池が知られている。燃料電池を車両に搭載するに際しては、内部保温性、高電圧安定性、電磁シールド性等の確保が求められ、また、飛び石や、水や泥のはねから燃料電池を保護する必要もある。このため、通常、車載型の燃料電池は、燃料電池ケースに収納された状態で車両に搭載されている。燃料電池ケースの車両への搭載方法に関しては、従来、種々の方法が提案されている。例えば、特許文献１に記載された従来技術では、車両のフロアパネルの下に燃料電池ケースを配置し、ボルトを用いてフロアフレームの底壁に燃料電池ケースを固定している。
特開２００４−３４８０８号公報 特開２００３−２３７６３５号公報 特開２０００−１４９９７４号公報 As a power source for driving an electric vehicle, a vehicle-mounted fuel cell that generates power using hydrogen as a fuel is known. When a fuel cell is mounted on a vehicle, it is required to secure internal heat retaining properties, high voltage stability, electromagnetic shielding properties, and the like, and it is also necessary to protect the fuel cell from flying stones and splashes of water and mud. For this reason, in-vehicle fuel cells are usually mounted on vehicles in a state of being housed in a fuel cell case. Conventionally, various methods have been proposed for mounting the fuel cell case on the vehicle. For example, in the prior art described in Patent Document 1, a fuel cell case is disposed under the floor panel of a vehicle, and the fuel cell case is fixed to the bottom wall of the floor frame using bolts.
JP 2004-34808 A JP 2003-237635 A JP 2000-149974 A

一般に、燃料電池ケースは、薄い金属板を加工して形成されている。このため、燃料電池ケース自体の剛性はあまり高くなく、車両から強い振動や捩りが入力された場合には変形してしまう可能性がある。燃料電池ケースの変形を防止して内部に収納されている燃料電池を保護するためには、燃料電池ケースを何等かの補強部材で補強することで燃料電池ケースの剛性を高めることが望ましい。   In general, the fuel cell case is formed by processing a thin metal plate. For this reason, the rigidity of the fuel cell case itself is not so high, and it may be deformed when strong vibration or torsion is input from the vehicle. In order to prevent deformation of the fuel cell case and protect the fuel cell housed therein, it is desirable to increase the rigidity of the fuel cell case by reinforcing the fuel cell case with some reinforcing member.

しかしながら、新たに補強部材を設けるとなると、部品点数の増加によりコストの増大や重量の増大を招いてしまう。さらに、新たに設ける補強部材の分、燃料電池ケースを搭載するための必要スペースが大きくなるため、スペースに制約があるフロアパネル下への搭載が困難になってしまう可能性もある。   However, if a new reinforcing member is provided, an increase in the number of parts causes an increase in cost and weight. Furthermore, since the necessary space for mounting the fuel cell case is increased by the amount of the newly provided reinforcing member, it may be difficult to mount it under the floor panel where the space is limited.

本発明は、上述のような課題を解決するためになされたもので、部品点数を増加させることなく燃料電池ケースの剛性を高めることを可能にした車載型燃料電池の車両搭載構造を提供することを目的とする。   The present invention has been made to solve the above-described problems, and provides a vehicle-mounted fuel cell mounting structure that can increase the rigidity of a fuel cell case without increasing the number of components. With the goal.

第１の発明は、上記の目的を達成するため、燃料電池ケースに収納された状態で車両に搭載される車載型燃料電池の車両搭載構造であって、
前記燃料電池ケースは車両のフロアパネル下に配置され、
前記フロアパネルを補強するフロア補強部材が前記燃料電池ケースを補強する補強部材として兼用されていることを特徴としている。 In order to achieve the above object, a first invention is a vehicle-mounted fuel cell mounting structure mounted on a vehicle in a state of being housed in a fuel cell case,
The fuel cell case is disposed under a vehicle floor panel,
The floor reinforcing member that reinforces the floor panel is also used as a reinforcing member that reinforces the fuel cell case.

第２の発明は、第１の発明において、前記燃料電池ケースの上方に、シートを前記フロアパネルに固定するシート用レールが配置され、
前記シート用レールは前記燃料電池ケースを補強する補強部材として兼用されていることを特徴としている。 According to a second invention, in the first invention, a seat rail for fixing a seat to the floor panel is disposed above the fuel cell case,
The seat rail is also used as a reinforcing member for reinforcing the fuel cell case.

第３の発明は、第２の発明において、前記シート用レールと前記フロア補強部材とは前記フロアパネルを挟んで結合されていることを特徴としている。   According to a third aspect, in the second aspect, the seat rail and the floor reinforcing member are coupled to each other with the floor panel interposed therebetween.

第４の発明は、第１又は第２の発明において、前記フロアパネルが前記燃料電池ケースの一部を構成していることを特徴としている。   A fourth invention is characterized in that, in the first or second invention, the floor panel constitutes a part of the fuel cell case.

また、第５の発明は、上記の目的を達成するため、燃料電池ケースに収納された状態で車両に搭載される車載型燃料電池の車両搭載構造であって、
車両のフロアパネルが前記燃料電池ケースの一部を構成していることを特徴としている。 Further, a fifth invention is a vehicle mounting structure of an in-vehicle fuel cell mounted on a vehicle in a state of being housed in a fuel cell case in order to achieve the above object,
A vehicle floor panel constitutes a part of the fuel cell case.

第１の発明によれば、フロアパネルを補強するフロア補強部材が燃料電池ケースを補強する補強部材として兼用されるので、部品点数を増加させることなく燃料電池ケースの剛性を高めることができる。   According to the first invention, since the floor reinforcing member that reinforces the floor panel is also used as the reinforcing member that reinforces the fuel cell case, the rigidity of the fuel cell case can be increased without increasing the number of components.

第２の発明によれば、シート用レールも燃料電池ケースを補強する補強部材として兼用されるので、燃料電池ケースの剛性をより高めることができる。   According to the second invention, since the seat rail is also used as a reinforcing member for reinforcing the fuel cell case, the rigidity of the fuel cell case can be further increased.

第３の発明によれば、シート用レールとフロア補強部材とがフロアパネルを挟んで結合されることで、燃料電池ケースの剛性はさらに高められる。   According to the third invention, the rigidity of the fuel cell case can be further increased by coupling the seat rail and the floor reinforcing member with the floor panel interposed therebetween.

第４の発明によれば、フロアパネルが燃料電池ケースの一部として利用されるので、全体の部品点数をより削減することができる。   According to the fourth invention, since the floor panel is used as a part of the fuel cell case, the total number of parts can be further reduced.

また、第５の発明によれば、燃料電池ケースの一部が車両のフロアパネルで構成されるので、フロアパネルの剛性を利用して燃料電池ケースの剛性を高めることができるとともに、全体の部品点数を削減することができる。   According to the fifth aspect of the invention, since a part of the fuel cell case is constituted by the floor panel of the vehicle, the rigidity of the fuel cell case can be increased by utilizing the rigidity of the floor panel, and the entire components The score can be reduced.

以下、図１乃至図３を参照して、本発明の実施の形態について説明する。
図１は、本発明の実施の形態としての車載型燃料電池の車両搭載構造を示す側面図、図２は、図１において各構成部品を分解して示した分解側面図である。図３は、図１に示す車載型燃料電池の車両搭載構造を車両の前方から見た正面図である。これらの図に示すように、燃料電池ケース１０は車両のフロアパネル２の下に配置されている。燃料電池ケース１０は、風呂桶型のロアケース１０ｂと、ロアケース１０ｂの蓋であるアッパケース１０ａとから構成されている。ロアケース１０ｂとアッパケース１０ａとの間には、燃料電池ケース１０の内部の気密性を確保するためにガスケット１６が挟まれている。燃料電池ケース１０内に収納された燃料電池（燃料電池スタック）１４は、ロアケース１０ｂの底にインシュレータを介して固定されている。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.
FIG. 1 is a side view showing a vehicle mounting structure of an in-vehicle fuel cell as an embodiment of the present invention, and FIG. 2 is an exploded side view showing the components in FIG. FIG. 3 is a front view of the vehicle-mounted fuel cell mounting structure shown in FIG. 1 as viewed from the front of the vehicle. As shown in these drawings, the fuel cell case 10 is disposed under the floor panel 2 of the vehicle. The fuel cell case 10 includes a bath-tub type lower case 10b and an upper case 10a that is a lid of the lower case 10b. A gasket 16 is sandwiched between the lower case 10b and the upper case 10a in order to ensure airtightness inside the fuel cell case 10. The fuel cell (fuel cell stack) 14 accommodated in the fuel cell case 10 is fixed to the bottom of the lower case 10b via an insulator.

フロアパネル２の下面には、フロアパネル２を補強するためのフロア補強部材６ｆ，６ｒが車両の前後方向に向けて取り付けられている。本実施形態では、フロア補強部材６ｆ，６ｒは途中で二つに分断されており、車両前側のフロア補強部材６ｆと車両後側のフロア補強部材６ｒとの間に燃料電池ケース１０が収められている。   Floor reinforcing members 6f and 6r for reinforcing the floor panel 2 are attached to the lower surface of the floor panel 2 in the front-rear direction of the vehicle. In the present embodiment, the floor reinforcing members 6f and 6r are divided into two in the middle, and the fuel cell case 10 is housed between the floor reinforcing member 6f on the vehicle front side and the floor reinforcing member 6r on the vehicle rear side. Yes.

燃料電池ケース１０には、ロアケース１０ｂを車両の前後方向に取り巻くように補強部材８が取り付けられている。ロアケース１０ｂの底面、及び車両前後方向の両側面は、補強部材８に接合されている。ロアケース１０ｂと補強部材８との接合方法は、溶接でもよく、ボルトとナットによる締結でもよい。   A reinforcing member 8 is attached to the fuel cell case 10 so as to surround the lower case 10b in the longitudinal direction of the vehicle. The bottom surface of the lower case 10 b and both side surfaces in the vehicle front-rear direction are joined to the reinforcing member 8. The method of joining the lower case 10b and the reinforcing member 8 may be welding or fastening with bolts and nuts.

また、フロアパネル２の上であって燃料電池ケース１０の真上に当たる位置には、シート２８をフロアパネル２に固定するためのシート用レール４が配置されている。本実施形態では、左右のシート２８の下にそれぞれ１個の燃料電池ケース１０が配置されている。シート用レール４は、１つのシート２８に２本ずつ備えられ、その長手方向を車両の前後方向に向けて配置されている。前記のフロア補強部材６ｆ，６ｒは各シート用レール４の真下に配置され、フロア補強部材６ｆ，６ｒの車両横方向位置に合わせてロアケース１０ｂに対する補強部材８の接合位置が調整されている。   A seat rail 4 for fixing the seat 28 to the floor panel 2 is disposed on the floor panel 2 at a position directly above the fuel cell case 10. In the present embodiment, one fuel cell case 10 is disposed under each of the left and right seats 28. Two seat rails 4 are provided for each seat 28, and the longitudinal direction thereof is arranged in the front-rear direction of the vehicle. The floor reinforcing members 6f and 6r are arranged directly below the seat rails 4, and the joining positions of the reinforcing members 8 to the lower case 10b are adjusted in accordance with the vehicle lateral direction positions of the floor reinforcing members 6f and 6r.

ロアケース１０ｂに結合された補強部材８とフロア補強部材６ｆ，６ｒとは、燃料電池ケース１０を所定の搭載位置に配置したときに、上下に重なり合うようになっている。補強部材８とフロア補強部材６ｆ，６ｒの各重なり部分には、ボルト穴が形成されている。このボルト穴はフロアパネル２にも通じており、シート用レール４にもボルト穴が設けられている。燃料電池ケース１０を固定する場合には、図２に示すように、補強部材８，フロア補強部材６ｆ，フロアパネル２，シート用レール４の順に各ボルト穴にボルト２０を通してナット２４と締結し、また、補強部材８，フロア補強部材６ｒ，フロアパネル２，シート用レール４の順に各ボルト穴にボルト２２を通してナット２６と締結する。補強部材８とフロア補強部材６ｆ，６ｒとが結合され、フロアパネル２を介してフロア補強部材６ｆ，６ｒとシート用レール４とが結合されることにより、燃料電池ケース１０は、その周囲を補強部材８とシート用レール４により囲まれることになる。   The reinforcing member 8 and the floor reinforcing members 6f and 6r coupled to the lower case 10b overlap each other when the fuel cell case 10 is disposed at a predetermined mounting position. Bolt holes are formed in the overlapping portions of the reinforcing member 8 and the floor reinforcing members 6f and 6r. This bolt hole is also connected to the floor panel 2, and the seat rail 4 is also provided with a bolt hole. When the fuel cell case 10 is fixed, as shown in FIG. 2, the bolts 20 are passed through the bolt holes in the order of the reinforcing member 8, the floor reinforcing member 6f, the floor panel 2, and the seat rail 4, and fastened to the nut 24. In addition, the reinforcing member 8, the floor reinforcing member 6r, the floor panel 2, and the seat rail 4 are fastened to the nuts 26 through the bolts 22 in the respective bolt holes. The reinforcing member 8 and the floor reinforcing members 6f and 6r are coupled, and the floor reinforcing members 6f and 6r and the seat rail 4 are coupled via the floor panel 2, whereby the fuel cell case 10 reinforces its periphery. It is surrounded by the member 8 and the seat rail 4.

上記の構造によれば、燃料電池ケース１０を剛性の高い補強部材８とシート用レール４により囲むことができるので、車両からの振動等の入力によって燃料電池ケース１０が変形することを防止することができる。つまり、燃料電池ケース１０の剛性を高めることができる。   According to the above structure, since the fuel cell case 10 can be surrounded by the highly rigid reinforcing member 8 and the seat rail 4, it is possible to prevent the fuel cell case 10 from being deformed by the input of vibration or the like from the vehicle. Can do. That is, the rigidity of the fuel cell case 10 can be increased.

また、上記の構造では、補強部材８は前後のフロア補強部材６ｆ，６ｒを接続しており、フロアパネル２を補強する補強部材も兼ねている。言い換えれば、フロアパネル２を補強するフロア補強部材の一部が、燃料電池ケース１０を補強する補強部材８として兼用されている。この補強部材８は、第１の発明における「燃料電池ケースを補強する補強部材として兼用されるフロア補強部材」に相当している。このように、フロア補強部材の一部を補強部材８として兼用し、また、既存のシート用レール４を補強部材として兼用することにより、燃料電池ケース１０を補強するための専用の補強部材を新たに追加する必要がない。つまり、上記の構造によれば、部品点数を増加させることなく燃料電池ケース１０の剛性を高めることができる。   In the above structure, the reinforcing member 8 connects the front and rear floor reinforcing members 6f and 6r, and also serves as a reinforcing member for reinforcing the floor panel 2. In other words, a part of the floor reinforcing member that reinforces the floor panel 2 is also used as the reinforcing member 8 that reinforces the fuel cell case 10. The reinforcing member 8 corresponds to the “floor reinforcing member also used as a reinforcing member for reinforcing the fuel cell case” in the first invention. In this way, a part of the floor reinforcing member is also used as the reinforcing member 8, and a dedicated reinforcing member for reinforcing the fuel cell case 10 is newly provided by using the existing seat rail 4 as the reinforcing member. There is no need to add to. That is, according to the above structure, the rigidity of the fuel cell case 10 can be increased without increasing the number of parts.

以上、本発明の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変形して実施することができる。例えば、次のように変形して実施してもよい。   Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. For example, the following modifications may be made.

上記実施の形態では、左右のシート２８の下にそれぞれ燃料電池ケース１０を配置しているが（計２個）、燃料電池ケース１０が大型の場合には、図４の正面図に示すように、左右のシート２８の下に１個の燃料電池ケース１０を配置することもできる。また、図４では、計４つのシート用レール４の全てを補強部材として用いているが、左右両端のシート用レール４のみを補強部材として用いるようにしてもよい。   In the above embodiment, the fuel cell cases 10 are arranged under the left and right seats 28 (two in total). However, when the fuel cell case 10 is large, as shown in the front view of FIG. One fuel cell case 10 may be disposed under the left and right seats 28. In FIG. 4, all the four seat rails 4 are used as the reinforcing members, but only the left and right seat rails 4 may be used as the reinforcing members.

また、図５の分解側面図に示すように、専用のアッパケースを省略し、フロアパネル２の下面２ａをロアケース１０ｂの蓋として兼用してもよい。フロアパネル２の下面２ａとロアケース１０ｂとの間には気密性を確保するためのガスケット１６を介装する。このように、フロアパネル２を燃料電池ケース１０の一部として利用することで、全体の部品点数をより削減することが可能になる。   Further, as shown in the exploded side view of FIG. 5, the dedicated upper case may be omitted, and the lower surface 2a of the floor panel 2 may also be used as a lid of the lower case 10b. A gasket 16 for ensuring airtightness is interposed between the lower surface 2a of the floor panel 2 and the lower case 10b. Thus, by using the floor panel 2 as a part of the fuel cell case 10, it is possible to further reduce the total number of parts.

また、上記実施の形態では、ロアケース１０ｂの底に燃料電池スタック１０を取り付けているが、アッパケース１０ａの裏面に燃料電池１４を取り付けるようにしてもよい。図５に示す変形例の場合であれば、フロアパネル２の下面２ａに燃料電池１４を取り付けるようにしてもよい。   Moreover, in the said embodiment, although the fuel cell stack 10 is attached to the bottom of the lower case 10b, you may make it attach the fuel cell 14 to the back surface of the upper case 10a. In the case of the modification shown in FIG. 5, the fuel cell 14 may be attached to the lower surface 2 a of the floor panel 2.

本発明の実施の形態としての車載型燃料電池の車両搭載構造を示す側面図である。It is a side view which shows the vehicle mounting structure of the vehicle-mounted fuel cell as embodiment of this invention. 図１において各構成部品を分解して示した分解側面図である。It is the disassembled side view which decomposed | disassembled and showed each component in FIG. 図１に示す車載型燃料電池の車両搭載構造を車両の前方から見た正面図である。It is the front view which looked at the vehicle mounting structure of the vehicle-mounted fuel cell shown in FIG. 1 from the front of the vehicle. 上記実施の形態の変形例を示す正面図である。It is a front view which shows the modification of the said embodiment. 上記実施の形態の変形例を示す分解側面図である。It is a decomposition | disassembly side view which shows the modification of the said embodiment.

符号の説明Explanation of symbols

２ フロアパネル
４ シート用レール
６ｆ，６ｒ フロア補強部材
８ 補強部材（フロア補強部材）
１０ 燃料電池ケース
１０ａ アッパケース
１０ｂ ロアケース
１４ 燃料電池
１６ ガスケット
２０，２２ ボルト
２４，２６ ナット
２８ シート
2 Floor panel 4 Seat rail 6f, 6r Floor reinforcing member 8 Reinforcing member (floor reinforcing member)
DESCRIPTION OF SYMBOLS 10 Fuel cell case 10a Upper case 10b Lower case 14 Fuel cell 16 Gasket 20, 22 Bolt 24, 26 Nut 28 Sheet

Claims (2)

車載型燃料電池の車両搭載構造であって、
車両のフロアパネル下に配置された、前記車載型燃料電池を収納するための燃料電池ケースと、
前記燃料電池ケースの搭載位置の前後に設けられて前記フロアパネルを補強する固定の補強部材と、
前記燃料電池ケースの対向する一対の側面と底面とを取り囲むコの字状の補強部材であって、両端を前記前後の固定補強部材に結合される着脱可能な補強部材と、
前記フロアパネルを挟んで前記着脱可能な補強部材に結合されるシート固定用のレールと、
を備えることを特徴とする車載型燃料電池の車両搭載構造。 A vehicle mounting structure for vehicle mounting type fuel cell,
A fuel cell case disposed under the floor panel of the vehicle for housing the in-vehicle fuel cell;
A fixed reinforcing member provided before and after the mounting position of the fuel cell case to reinforce the floor panel;
A U-shaped reinforcing member that surrounds a pair of opposing side surfaces and a bottom surface of the fuel cell case, the removable reinforcing member having both ends coupled to the front and rear fixed reinforcing members;
A rail for fixing the seat that is coupled to the detachable reinforcing member across the floor panel;
Vehicle mounting structure of a vehicle-mounted type fuel cell comprising: a. 前記フロアパネルが前記燃料電池ケースの上蓋を構成していることを特徴とする請求項１記載の車載型燃料電池の車両搭載構造。 2. The on-vehicle fuel cell mounting structure according to claim 1, wherein the floor panel forms an upper lid of the fuel cell case.
JP2005031831A 2005-02-08 2005-02-08 On-vehicle fuel cell mounting structure Expired - Fee Related JP4650010B2 (en)

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