JP2005119599A - Separation structure of fuel cell electric vehicle - Google Patents

Separation structure of fuel cell electric vehicle Download PDF

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JP2005119599A
JP2005119599A JP2003359364A JP2003359364A JP2005119599A JP 2005119599 A JP2005119599 A JP 2005119599A JP 2003359364 A JP2003359364 A JP 2003359364A JP 2003359364 A JP2003359364 A JP 2003359364A JP 2005119599 A JP2005119599 A JP 2005119599A
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fuel cell
vehicle
hydrogen tank
vehicle body
electrical component
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Shinya Isobe
真也 磯部
Ryuichi Miyano
竜一 宮野
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Suzuki Motor Corp
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Suzuki 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

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a separation structure of a fuel cell electric vehicle in which a sealing member to cover individual electric components of a fuel cell system can be omitted, an upsizing of the electric components can be avoided, and sufficient spaces for a crew compartment and a luggage compartment can be ensured. <P>SOLUTION: In an explosion-proof structure of a fuel cell electric vehicle which is run by the electric energy generated by a fuel cell with gaseous hydrogen stored in a hydrogen tank as fuel, the hydrogen tank is arranged outside a cabin on the lower side of a vehicle body panel, electric components are disposed in the cabin on the upper side of the vehicle body panel, and the electric components are separated from the hydrogen tank by the vehicle body panel. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は燃料電池自動車の隔離構造に係り、特に、燃料電池システムの電気部品個々を覆う密閉部材を不要にして電気部品の大型化を回避することができ、十分な乗員室空間及び荷室空間を確保することができる燃料電池自動車の隔離構造に関する。   The present invention relates to an isolation structure for a fuel cell vehicle, and in particular, a sealing member that covers individual electrical components of a fuel cell system can be eliminated to avoid an increase in the size of electrical components, and a sufficient passenger compartment space and cargo space. It is related with the isolation structure of the fuel cell vehicle which can ensure.

圧縮水素、若しくは液体水素を燃料とする燃料電池自動車は、燃料電池システムの水素タンクに貯留した水素ガスを燃料として燃料電池に供給して電気エネルギを生成し、この電気エネルギによりモータを駆動して走行する。燃料電池自動車においては、燃料電池システムの電気部品を密閉部材で覆って密閉することにより、水素ガスが漏れた場合にも、水素ガスを電気部品等から隔離できる隔離構造を採用している。   A fuel cell vehicle that uses compressed hydrogen or liquid hydrogen as a fuel supplies hydrogen gas stored in a hydrogen tank of the fuel cell system as fuel to the fuel cell to generate electric energy, and drives the motor with this electric energy. Run. The fuel cell vehicle employs an isolation structure that can isolate the hydrogen gas from the electrical components and the like even when hydrogen gas leaks by covering and sealing the electrical components of the fuel cell system with a sealing member.

従来の燃料電池自動車の隔離構造としては、車体の乗客室と仕切った後部機械室に据え付けた燃料電池発電装置に対して、その周域の後方と側方とを取囲んで衝撃吸収用梁を配備するとともに、乗客室との間を仕切る面域及び上面域を覆う隔壁を設けたものがある。
特開平５−７７６４８号公報 As a conventional fuel cell vehicle isolation structure, a fuel cell power generator installed in a rear machine room partitioned from the passenger compartment of the vehicle body is surrounded by a shock absorbing beam surrounding the rear and sides of the surrounding area. Some are provided with partition walls that cover the upper surface area and the surface area that partitions the passenger cabin.
JP-A-5-77648

ところが、従来の燃料電池自動車の隔離構造においては、電気部品を密閉部材で覆った場合に、電気部品の容積が大きくなって大型化するため、車室としての乗員室空間及び荷室空間を十分に確保することが困難な不都合がある。   However, in the conventional fuel cell vehicle isolation structure, when the electrical components are covered with a sealing member, the volume of the electrical components increases and the size of the electrical components increases. There are inconveniences that are difficult to ensure.

この発明は、水素タンクに貯留した水素ガスを燃料として燃料電池により電気エネルギを生成し、この電気エネルギにより走行する燃料電池自動車の防爆構造において、前記水素タンクを車体パネル下側の車室外に配設し、前記車体パネル上側の車室内に電気部品を配設し、前記車体パネルにより前記電気部品を前記水素タンクから隔離したことを特徴とする。   According to the present invention, electric energy is generated by a fuel cell using hydrogen gas stored in a hydrogen tank as fuel, and the hydrogen tank is disposed outside a vehicle compartment under the vehicle body panel in an explosion-proof structure of a fuel cell vehicle that runs on the electric energy. And an electrical component is disposed in a vehicle compartment above the vehicle body panel, and the electrical component is isolated from the hydrogen tank by the vehicle body panel.

この発明の燃料電池自動車の防爆構造は、水素タンクを車体パネル下側の車室外に配設し、車体パネル上側の車室内に電気部品を配設し、車体パネルにより電気部品を水素タンクから隔離していることによって、たとえ水素ガスが漏れたとしても、漏れた水素ガスを電気部品から引き離しておくことができ、電気部品を密閉部材で覆って密閉する必要がない。
このため、この燃料電池自動車の隔離構造は、電気部品個々を覆う密閉部材を不要にして電気部品の大型化を回避することができ、車室である乗員室空間及び荷室空間を十分に確保することができる。 In the explosion-proof structure of the fuel cell vehicle according to the present invention, the hydrogen tank is disposed outside the vehicle compartment on the lower side of the vehicle body panel, the electrical components are disposed in the vehicle interior on the upper side of the vehicle body panel, and the electrical components are isolated from the hydrogen tank by the vehicle body panel. By doing so, even if hydrogen gas leaks, the leaked hydrogen gas can be kept away from the electrical component, and it is not necessary to cover and seal the electrical component with a sealing member.
For this reason, this fuel cell vehicle isolation structure eliminates the need for a sealing member that covers each of the electrical components and avoids the increase in size of the electrical components, and sufficiently secures the passenger compartment space and the cargo compartment space as the vehicle compartment. can do.

この発明の燃料電池自動車の隔離構造は、車体パネルにより電気部品を水素タンクから隔離したことによって、電気部品を覆う密閉部材を不要にして大型化を回避し、車室である乗員室空間及び荷室空間を十分に確保するものである。
以下図面に基づいて、この発明の実施例を説明する。 The isolation structure of the fuel cell vehicle according to the present invention isolates the electrical component from the hydrogen tank by the vehicle body panel, thereby eliminating the need for a sealing member that covers the electrical component and avoiding an increase in size, and the passenger compartment space that is the vehicle compartment and the load. The room space is sufficiently secured.
Embodiments of the present invention will be described below with reference to the drawings.

図１・図２は、この発明の第１実施例を示すものである。図において、２は燃料電池自動車、４は車体、６は前輪、８は後輪である。燃料電池自動車２は、車体４を車体パネルであるフロアパネル１０と仕切りパネル１２とによって仕切り、車体４前側の機械室１４と車体４中央から後側の車室１６とを区画形成している。   1 and 2 show a first embodiment of the present invention. In the figure, 2 is a fuel cell vehicle, 4 is a vehicle body, 6 is a front wheel, and 8 is a rear wheel. In the fuel cell vehicle 2, the vehicle body 4 is partitioned by a floor panel 10, which is a vehicle body panel, and a partition panel 12, and a machine room 14 on the front side of the vehicle body 4 and a vehicle room 16 on the rear side from the center of the vehicle body 4 are partitioned.

車室１６は、車体４中央の乗員室１８と、車体後側の荷室２０とからなる。フロアパネル１０は、乗員室１８中央から前側の前側フロアパネル部１０Ｆと、乗員室１８中央から後側の後側フロアパネル部１０Ｂとにより形成され、後述する水素タンク２４を横置き状態で収納すべく、この後側フロアパネル部１０Ｂをおよそ水素タンク２４の高さ分だけ、乗員室１８中央で前側フロアパネル部１０Ｆよりも上方に延出させた後、水平方向に折曲させて後方に延出させることにより、後側フロアパネル部１０Ｂの下方に水素タンク２４の収納空間Ｓを形成している。   The vehicle compartment 16 includes a passenger compartment 18 in the center of the vehicle body 4 and a luggage compartment 20 on the rear side of the vehicle body. The floor panel 10 is formed by a front floor panel portion 10F from the front of the passenger compartment 18 to the front and a rear floor panel portion 10B of the rear from the center of the passenger compartment 18 and stores a hydrogen tank 24 described later in a horizontal state. Therefore, after extending the rear floor panel portion 10B by the height of the hydrogen tank 24 at the center of the passenger compartment 18 above the front floor panel portion 10F, it is bent horizontally and extended backward. By letting out, the storage space S of the hydrogen tank 24 is formed below the rear floor panel portion 10B.

燃料電池自動車２は、水素ガスを燃料として電気エネルギを発生する燃料電池システム２２を設けている。燃料電池システム２２は、水素ガスを貯留する水素タンク２４と、水素ガスを燃料として電気エネルギを生成する燃料電池２６と、燃料電池２６による電気エネルギの生成や図示しない走行用のモータを制御する電気部品２８と、を備えている。電気部品２８は、例えば、バッテリ２８Ａ、メインスイッチ２８Ｂ、メインコンダクタ２８Ｃ、ヒューズボックス２８Ｄ等から構成される。   The fuel cell vehicle 2 is provided with a fuel cell system 22 that generates electric energy using hydrogen gas as fuel. The fuel cell system 22 includes a hydrogen tank 24 that stores hydrogen gas, a fuel cell 26 that generates electric energy using the hydrogen gas as fuel, and an electric that controls the generation of electric energy by the fuel cell 26 and a motor for traveling (not shown). And a component 28. The electrical component 28 includes, for example, a battery 28A, a main switch 28B, a main conductor 28C, a fuse box 28D, and the like.

燃料電池自動車２は、車体４後側に設けた燃料電池システム２２の水素タンク２４に貯留した水素ガスを燃料として車体４前側の機械室１４に設けた燃料電池２６に供給し、燃料電池２６により電気エネルギを生成して走行用のモータを駆動して前輪６を回転させ、走行する。   The fuel cell vehicle 2 supplies the hydrogen gas stored in the hydrogen tank 24 of the fuel cell system 22 provided on the rear side of the vehicle body 4 to the fuel cell 26 provided in the machine chamber 14 on the front side of the vehicle body 4. Electric energy is generated and a traveling motor is driven to rotate the front wheels 6 to travel.

この燃料電池自動車２は、燃料電池システム２２の水素タンク２４を車体パネルである後側フロアパネル部１０Ｂ下側の車室１６外であって、荷室２０前方の乗員室１８下方に配設している。この水素タンク２４は、前側水素タンク２４Ｆと後側水素タンク２４Ｂとで構成され、後側水素タンク２４Ｂの後方に後輪８に連結されるリヤアクスル（図示せず）が配設される。   In this fuel cell vehicle 2, the hydrogen tank 24 of the fuel cell system 22 is disposed outside the passenger compartment 16 below the rear floor panel portion 10B, which is a vehicle body panel, and below the passenger compartment 18 in front of the cargo compartment 20. ing. The hydrogen tank 24 includes a front hydrogen tank 24F and a rear hydrogen tank 24B, and a rear axle (not shown) connected to the rear wheel 8 is disposed behind the rear hydrogen tank 24B.

また、この燃料電池自動車２は、車体パネルであるフロアパネル１０上側の車室１６内に燃料電池装置２２の電気部品２８を配設している。この実施例においては、後側フロアパネル部１０Ｂ上側の荷室２０内であって、荷室２０下方に電気部品２８を配設している。   In the fuel cell vehicle 2, an electrical component 28 of the fuel cell device 22 is disposed in a vehicle compartment 16 on the upper side of the floor panel 10 that is a vehicle body panel. In this embodiment, an electrical component 28 is disposed in the luggage compartment 20 above the rear floor panel 10B and below the cargo compartment 20.

これにより、この燃料電池自動車２は、フロアパネル１０により電気部品２８を水素タンク２４から隔離して配設している。   Thus, in the fuel cell vehicle 2, the electrical component 28 is separated from the hydrogen tank 24 by the floor panel 10.

このように、この燃料電池自動車２の隔離構造は、水素タンク２４を後側フロアパネル部１０Ｂ下側の車室１６外に配設し、後側フロアパネル部１０Ｂ上側の車室１６内に電気部品２８を配設し、後側フロアパネル部１０Ｂにより電気部品２８を水素タンク２４から隔離している。   As described above, the fuel cell automobile 2 has an isolation structure in which the hydrogen tank 24 is disposed outside the vehicle compartment 16 below the rear floor panel portion 10B and is electrically connected to the vehicle compartment 16 above the rear floor panel portion 10B. The component 28 is disposed, and the electrical component 28 is isolated from the hydrogen tank 24 by the rear floor panel portion 10B.

これにより、この燃料電池自動車２の隔離構造は、たとえ水素ガスが漏れたとしても、漏れた水素ガスを電気部品２８から引き離しておくことができ、電気部品２８を密閉部材で覆って密閉する必要がない。   Thereby, even if hydrogen gas leaks, this isolation structure of the fuel cell vehicle 2 can keep the leaked hydrogen gas away from the electrical component 28, and the electrical component 28 needs to be covered and sealed with a sealing member. There is no.

このため、この燃料電池自動車２の隔離構造は、電気部品２８個々を覆って密閉する密閉部材を不要にして電気部品２８の大型化を回避することができ、車室１６である乗員室１８空間及び荷室２０空間を十分に確保することができる。   For this reason, the isolation structure of the fuel cell vehicle 2 can avoid the enlargement of the electrical component 28 by eliminating the need for a sealing member that covers and seals each electrical component 28, and the passenger compartment 18 space that is the vehicle compartment 16. In addition, a sufficient space for the cargo space 20 can be secured.

また、この燃料電池自動車２の隔離構造は、電気部品２８を荷室２０下方に配設したことにより、電気部品２８を水素タンク２４から隔離しながらも、電気部品２８の点検を容易に行うことができ、また、水素タンク２４を荷室２０前方の乗員室１８下方に配設したことにより、水素タンク２４と電気部品２８とを離間させることができ、漏れた水素ガスを電気部品２８からさらに引き離すことができる。   Further, the isolation structure of the fuel cell vehicle 2 allows the electrical component 28 to be easily inspected while isolating the electrical component 28 from the hydrogen tank 24 by arranging the electrical component 28 below the cargo compartment 20. In addition, since the hydrogen tank 24 is disposed below the passenger compartment 18 in front of the cargo compartment 20, the hydrogen tank 24 and the electrical component 28 can be separated from each other, and the leaked hydrogen gas is further removed from the electrical component 28. Can be pulled apart.

図３・図４は、第２実施例を示すものである。この実施例の燃料電池自動車２は、水素タンク２４を後側フロアパネル部１０Ｂ下側の車室１６外であって荷室２０前方の乗員室１８下方に配設し、後側フロアパネル部１０Ｂ上側の荷室２０内であって荷室２０下方に電気部品２８を配設し、後側フロアパネル部１０Ｂにより電気部品２８を水素タンク２４から隔離するとともに、後側フロアパネル部１０Ｂ上側の荷室２０内の電気部品２８を密閉可能な容器３０に収納したものである。   3 and 4 show a second embodiment. In the fuel cell vehicle 2 of this embodiment, the hydrogen tank 24 is disposed outside the passenger compartment 16 below the rear floor panel portion 10B and below the passenger compartment 18 in front of the cargo compartment 20, and the rear floor panel portion 10B. An electrical component 28 is disposed in the upper cargo compartment 20 and below the cargo compartment 20, and the electrical component 28 is isolated from the hydrogen tank 24 by the rear floor panel portion 10B, and the load on the upper side of the rear floor panel portion 10B. The electrical component 28 in the chamber 20 is housed in a sealable container 30.

この実施例の燃料電池自動車２の隔離構造は、後側フロアパネル部１０Ｂ上側の荷室２０内の電気部品２８を容器３０に収納して密閉したことにより、漏れた水素ガスを電気部品２８から確実に引き離すことができる。   In the isolation structure of the fuel cell vehicle 2 of this embodiment, the electrical component 28 in the cargo compartment 20 on the upper side of the rear floor panel 10B is housed in a container 30 and sealed, so that the leaked hydrogen gas is separated from the electrical component 28. Can be pulled apart reliably.

なお、この実施例においては、後側フロアパネル部１０Ｂ上側の荷室２０内に電気部品２８を配設したが、フロアパネル１０により車室１６外と隔離された空間の全てに適応可能である。例えば、前側フロアパネル部１０Ｆ上側の乗員室１８であって図示しない座席の下側に配設することもできる。   In this embodiment, the electrical component 28 is disposed in the cargo compartment 20 on the upper side of the rear floor panel portion 10B. However, the electrical component 28 can be applied to all spaces separated from the outside of the passenger compartment 16 by the floor panel 10. . For example, the passenger compartment 18 on the upper side of the front floor panel 10F can be disposed below the seat (not shown).

この発明の燃料電池自動車の隔離構造は、車体パネルにより電気部品を水素タンクから隔離したことによって、電気部品を覆う密閉部材を不要にして大型化を回避し、車室である乗員室空間及び荷室空間を十分に確保するものであり、揮発性の気体を燃料として使用する全ての車両に適用することができる。   The isolation structure of the fuel cell vehicle according to the present invention isolates the electrical component from the hydrogen tank by the vehicle body panel, thereby eliminating the need for a sealing member that covers the electrical component and avoiding an increase in size, and the passenger compartment space that is the vehicle compartment and the load. The room space is sufficiently secured and can be applied to all vehicles that use volatile gas as fuel.

燃料電池自動車の隔離構造の第１実施例を示す車体の断面図である。It is sectional drawing of the vehicle body which shows 1st Example of the isolation structure of a fuel cell vehicle. 車体後部の斜視図である。It is a perspective view of a vehicle body rear part. 燃料電池自動車の隔離構造の第２実施例を示す車体の断面図である。It is sectional drawing of the vehicle body which shows 2nd Example of the isolation structure of a fuel cell vehicle. 車体後部の斜視図である。It is a perspective view of a vehicle body rear part.

符号の説明Explanation of symbols

２ 燃料電池自動車
４ 車体
６ 前輪
８ 後輪
１０ フロアパネル
１２ 仕切りパネル
１４ 機械室
１６ 車室
１８ 乗員室
２０ 荷室
２２ 燃料電池システム
２４ 水素タンク
２６ 燃料電池
２８ 電気部品 2 Fuel Cell Vehicle 4 Car Body 6 Front Wheel 8 Rear Wheel 10 Floor Panel 12 Partition Panel 14 Machine Room 16 Car Room 18 Passenger Room 20 Cargo Room 22 Fuel Cell System 24 Hydrogen Tank 26 Fuel Cell 28 Electric Parts

Claims (4)

水素タンクに貯留した水素ガスを燃料として燃料電池により電気エネルギを生成し、この電気エネルギにより走行する燃料電池自動車の隔離構造において、前記水素タンクを車体パネル下側の車室外に配設し、前記車体パネル上側の車室内に電気部品を配設し、前記車体パネルにより前記電気部品を前記水素タンクから隔離したことを特徴とする燃料電池自動車の隔離構造。   In the isolation structure of a fuel cell vehicle that generates electric energy by a fuel cell using hydrogen gas stored in a hydrogen tank as a fuel, the hydrogen tank is disposed outside the vehicle compartment under the vehicle body panel, and An isolation structure for a fuel cell vehicle, wherein an electrical component is disposed in a vehicle compartment above the vehicle body panel, and the electrical component is isolated from the hydrogen tank by the vehicle body panel. 前記電気部品を密閉可能な容器に収納したことを特徴とする請求項１に記載の燃料電池自動車の隔離構造。   2. The isolation structure for a fuel cell vehicle according to claim 1, wherein the electrical component is housed in a sealable container. 前記電気部品を荷室下方に配設したことを特徴とする請求項１に記載の燃料電池自動車の隔離構造。   The fuel cell vehicle isolation structure according to claim 1, wherein the electrical component is disposed below a cargo compartment. 前記水素タンクを前記荷室前方の乗員室下方に配設したことを特徴とする請求項３に記載の燃料電池自動車の隔離構造。   The fuel cell vehicle isolation structure according to claim 3, wherein the hydrogen tank is disposed below a passenger compartment in front of the cargo compartment.
JP2003359364A 2003-10-20 2003-10-20 Separation structure of fuel cell electric vehicle Pending JP2005119599A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016068806A (en) * 2014-09-30 2016-05-09 トヨタ自動車株式会社 vehicle
CN111434506A (en) * 2019-01-11 2020-07-21 本田技研工业株式会社 Vehicle with high-pressure gas container

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016068806A (en) * 2014-09-30 2016-05-09 トヨタ自動車株式会社 vehicle
CN111434506A (en) * 2019-01-11 2020-07-21 本田技研工业株式会社 Vehicle with high-pressure gas container
CN111434506B (en) * 2019-01-11 2023-03-24 本田技研工业株式会社 Vehicle with high-pressure gas container

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