WO2008125946A1 - Véhicule - Google Patents

Véhicule Download PDF

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Publication number
WO2008125946A1
WO2008125946A1 PCT/IB2008/000866 IB2008000866W WO2008125946A1 WO 2008125946 A1 WO2008125946 A1 WO 2008125946A1 IB 2008000866 W IB2008000866 W IB 2008000866W WO 2008125946 A1 WO2008125946 A1 WO 2008125946A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
fuel cell
wall
cover
floor panel
Prior art date
Application number
PCT/IB2008/000866
Other languages
English (en)
Inventor
Hiroshi Arisawa
Original Assignee
Toyota Jidosha Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Jidosha Kabushiki Kaisha filed Critical Toyota Jidosha Kabushiki Kaisha
Publication of WO2008125946A1 publication Critical patent/WO2008125946A1/fr

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Classifications

    • 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
    • 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
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0472—Removal or replacement of the energy storages from below
    • 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
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0494—Removal or replacement of the energy storages with arrangements for sliding

Definitions

  • the invention relates to a vehicle, and more particularly, to an art for mounting a predetermined component for driving a vehicle on a floor surface portion of the vehicle.
  • Electric vehicles mounted with a fuel cell system including a fuel cell as a power source have been developed.
  • Various arts for mounting such an electric vehicle with various components (e.g., a fuel cell and the like) constituting a fuel cell system have been proposed.
  • JP-A- 2003-182379 describes an art in the field of a type of an electric vehicle mounted with a fuel cell.
  • some of various components including the fuel cell, which constitute a fuel cell system are disposed below a floor of the vehicle according to a predetermined sequence to enhance the stability of the behavior of the vehicle and make the fuel cell resistant to breakage even when the vehicle undergoes a head-on collision or a rear-end collision.
  • the fuel cell is accommodated in a fuel cell system box, and temperature adjustment means and humidification means are disposed respectively on a front side and a rear side of the fuel cell in the fuel cell system box with respect to the vehicle.
  • This fuel cell system box is disposed at a central position in a longitudinal direction of the vehicle.
  • JP-A-2003-182379 when an unexpectedly large impact force is generated upon a collision of the vehicle, the fuel cell and the like that are fixed in the fuel cell system box may leave their fixation positions, crash against an inner wall of the fuel cell system box, and deform or even break the fuel cell system box.
  • This phenomenon is not limited to cases where a fuel cell system box is mounted below a floor (on a floor surface portion) of a type of an electric vehicle mounted with a fuel cell as in the case of the above-mentioned Japanese Patent Application Publication No.
  • the invention provides an art for restraining members constituting the component mounting portion from being deformed or broken when the vehicle collides with another object.
  • the floor surface portion of the vehicle means a region immediately above a floor surface of the vehicle, a region immediately below the floor surface, or a predetermined region at the same height as the floor surface.
  • a vehicle according to one aspect of the invention is equipped with a predetermined component for driving the vehicle, and an accommodation space constituting member provided on a floor surface portion of the vehicle to constitute an accommodation space for accommodating the component.
  • the accommodation space constituting member has an inner wall inclined so as to form an acute angle with a floor surface of the vehicle in the accommodation space, and the predetermined component abuts face-to-face on at least part of the inclined inner wall of the accommodation space constituting member.
  • the inner wall of the accommodation space constituting member and the predetermined component abut face-to-face on each other. Therefore, for example, when an external force is substantially horizontally applied to the vehicle due to a collision between the vehicle and another object, an inertial force acting substantially horizontally with respect to the vehicle (in the opposite direction of the external force) is applied from the component to the accommodation space constituting member on an abutment region between the inner wall surface and the component.
  • the accommodation space constituting member has the inner wall inclined so as to form an acute angle with the floor surface of the vehicle in the accommodation space.
  • the inertial force applied to the inner wall surface is decomposed into a component force perpendicular to the inner wall surface and a component force parallel to the inner wall surface. Accordingly, the magnitude of the component force perpendicular to the inner wall surface is smaller than the magnitude of the inertial force. Further, the inner wall surface and the component abut face-to-face on each other. Therefore, the force applied to the inner wall surface per unit area is small. As a result, the accommodation space constituting member is restrained from being deformed or broken.
  • Various components are applicable as the aforementioned "predetermined component". For example, a fuel cell, a battery, a fuel tank, and the like can be mentioned in the case where the vehicle is an electric vehicle. An excellent effect is achieved when the aforementioned "predetermined component" is relatively heavy in weight, because the inertial force is proportional to the weight of the component.
  • the inclined inner wall may be provided at least on a front side of the vehicle. This is because the vehicle more often undergoes a head-on collision than other types of collisions.
  • the inclined inner wall may be provided on a rear side of the vehicle, a lateral side of the vehicle, or a oblique side of the vehicle.
  • the accommodation space constituting member may include a front panel of the vehicle and a cover fastened to the floor panel, and at least one of the floor panel and the cover may have the inclined inner wall.
  • the component mounting portion (the accommodation space for the component) can be easily formed on the floor surface portion of the vehicle.
  • a member exhibiting relatively high rigidity is applied as the floor panel of the vehicle. Therefore, by applying this floor panel as the accommodation space constituting member having the inclined inner wall, the accommodation space constituting member is more effectively restrained from being deformed or broken than in a case where the cover is applied as the accommodation space constituting member having the inclined inner wall.
  • the accommodation space constituting member may include a floor panel of the vehicle that has the inclined inner wall, and a cover fastened to a region below the floor panel.
  • the floor panel and the cover may be fastened to each other with a fastening force that is set such that the floor panel and the cover separate from each other when a force equal to or larger than a predetermined value is applied vertically downward to the cover.
  • an inertial force is applied from the component to the accommodation space constituting member when an external force is substantially horizontally applied to the vehicle due to, for example, a collision between the vehicle and another object.
  • a drag of a component force of the inertial force that acts perpendicularly to the inner wall surface is applied to the component.
  • the inner wall surface is inclined so as to form an acute angle with the floor surface of the vehicle. Therefore, this drag is decomposed into a horizontal component force acting in the opposite direction of the inertial force, and a vertical component force acting vertically downward.
  • the fastening force between the floor panel and the cover is set such that the floor panel and the cover separate from each other when a force equal to or larger than the predetermined value is applied vertically downward to the cover. Therefore, the component and the cover can be made to fall from a main body of the vehicle when a force equal to or larger than the predetermined value is applied vertically downward to the cover, namely, when the vertical component force of the drag that acts vertically downward becomes equal to or larger than the predetermined value upon a collision of the vehicle or the like. Accordingly, the security of passengers of the vehicle is enhanced.
  • the predetermined component may include a cushioning material disposed so as to abut on the inner wall.
  • the cushioning material may absorb a force applied to the inner wall and a force applied to the component when an external force is substantially horizontally applied to the vehicle.
  • the cushioning material absorbs the above-described inertial force, and the accommodation space constituting member is further restrained from being deformed or broken.
  • FIG. 1 is an illustrative view showing the overall construction of a vehicle as the first embodiment of the invention
  • FIG. 2 is a perspective view showing the exterior appearance of a fuel cell stack 110 in the first embodiment of the invention
  • FIGS. 3 A and 3B are illustrative views showing the overall structure of a mounting portion 100 in the first embodiment of the invention
  • FIGS. 4A and 4B are illustrative views showing an operation and an effect that are obtained by providing a vehicle 10 with the mounting portion 100;
  • FIGS. 5 A and 5B are illustrative views showing the overall structure of a mounting portion IOOA in the second embodiment of the invention.
  • FIGS. 6 A and 6B are illustrative views showing the overall structure of a mounting portion IOOB as a modification example of the first embodiment of the invention
  • FIG. 7 is an illustrative view showing the overall structure of a mounting portion IOOC as another modification example of the first embodiment of the invention
  • FIG. 8 is an illustrative view showing the overall structure of a mounting portion IOOD as still another modification example of the first embodiment of the invention.
  • FIG. 9 is a perspective view showing the exterior appearance of a fuel cell stack HOB as a modification example.
  • FIG. 10 is a perspective view showing the exterior appearance of a fuel cell stack HOC as another modification example.
  • FIG. 1 is an illustrative view showing the overall construction of a vehicle as the first embodiment of the invention.
  • This vehicle 10 is an electric vehicle having a motor, which is driven by power generated by a fuel cell (a later-described fuel cell stack 110) and power output from a battery, and designed to run with wheels rotated by a motive force of the motor.
  • the power generated by the fuel cell stack 110 can also be stored in the battery.
  • This vehicle 10 is equipped on a floor surface portion thereof with a mounting portion 100 for mounting the fuel cell stack 110. In this embodiment of the invention, as shown in FIG. 1, the mounting portion 100 is disposed below a seat installed in the vehicle 10.
  • FIG. 2 is a perspective view showing the exterior appearance of the fuel cell stack HO in the first embodiment of the invention.
  • this fuel cell stack 110 is formed by stacking a plurality of single cells 112.
  • the number of the stacked single cells 112 may be arbitrarily set in accordance with an output required of the fuel cell stack 110.
  • collector plates (not shown) and insulator plates (not shown) are disposed in this order respectively at both ends of a stacked body composed of the plurality of the single cells 112 in a stacking direction thereof.
  • end plates 114a and 114b are disposed respectively at both these ends.
  • the end plates 114a and 114b are formed of a metal such as steel or the like.
  • Each of the collector plates is formed of a gas impermeable conductive member such as a piece of dense carbon or a copper plate. Each of the collector plates is provided with an output terminal (not shown) that outputs power generated by the fuel cell stack 110.
  • Each of the insulator plates is formed of an insulating member such as a piece of rubber, resin, or the like. [0018]
  • the end plate 114a assumes a planar shape of a hexagon having sides Sl to S6. In this embodiment of the invention, this hexagon is shaped such that the sides Sl and S2 are parallel to each other and that the upper side Sl is shorter than the lower side S2.
  • the left side S3 and the right side S4 are parallel to each other, have the same length, and intersect with the side S2 at right angle.
  • the angle formed by the sides Sl and S5 is equal to the angle formed by the sides Sl and S6. This angle is an obtuse angle.
  • the end plate 114b is identical in shape to the end plate 114a.
  • the respective single cells 112 are homothetic to the end plates 114a and 114b, and assume planar shapes smaller than those of the end plates 114a and 114b. Accordingly, the end plates 114a and 114b protrude from an outer peripheral face of the stacked body composed of the plurality of the single cells 112.
  • mount rubber pieces functioning as a cushioning material for absorbing an impact from the outside are installed on outer peripheral portions of the end plates 114a and 114b respectively.
  • the end plate 114a is provided with a fuel gas supply port (not shown), a fuel gas discharge port (not shown), an oxidant gas supply port (not shown), an oxidant gas discharge port (not shown), a coolant supply port (not shown), and a coolant discharge port (not shown).
  • a plurality of supply manifolds for supplying hydrogen as a fuel gas, air as an oxidant gas, and coolant to the single cells 112 respectively in a distributive manner, and a plurality of discharge manifolds for gathering and then discharging to the outside of the fuel cell stack 110 an anode off gas and a cathode off gas that are discharged from anodes and cathodes of the single cells 112 respectively and coolant are formed inside the fuel cell stack 110.
  • FIGS. 3 A and 3B are illustrative views showing the overall structure of the mounting portion 100 in the first embodiment of the invention.
  • FIG. 3A shows a cross-section of the mounting portion 100 as viewed from a point on the left of the vehicle 10 (a cross-sectional view taken along a line IIIA-IIIA of FIG. 3B).
  • FIG. 3A shows a cross-section of the mounting portion 100 as viewed from a point on the left of the vehicle 10 (a cross-sectional view taken along a line IIIA-IIIA of FIG. 3B).
  • FIG. 3A shows a cross-section of the mounting portion 100 as viewed from a point above the vehicle 10 (a cross-sectional view taken along a line IIIB-IIIB of FIG. 3A).
  • FIG. 3B shows a cross-section of the mounting portion 100 as viewed from a point above the vehicle 10 (a cross-sectional view taken along a line IIIB-IIIB of FIG. 3A).
  • the front side of the vehicle 10 is shown on the left side
  • the rear side of the vehicle 10 is shown on the right side
  • the right side of the vehicle 10 is shown on the upper side
  • the left side of the vehicle 10 is shown on the lower side.
  • the fuel cell stack 110 having mount rubber pieces 116a and 116b installed on the outer peripheral portions of the end plates 114a and 114b respectively is accommodated in an inner space (accommodation space) of the mounting portion 100.
  • the fuel cell stack 110 is accommodated in the accommodation space inside the mounting portion 100 such that the stacking direction of the plurality of the single cells 112 in the fuel cell stack 110 coincides with the lateral direction of the vehicle 10.
  • several hundred layers of the single cells 112 are stacked in the fuel cell stack 110, and the fuel cell stack 110 is hence relatively long in the stacking direction thereof. Therefore, by disposing the fuel cell stack 110 in this manner, the vehicle 10 can be mounted with the fuel cell stack 110 while effectively utilizing a relatively narrow space below seats of the vehicle 10.
  • the mounting portion 100 of this embodiment of the invention is equipped with a floor panel 12 of the vehicle 10, and a cover 14 fastened to the floor panel 12 in a region therebelow.
  • the floor panel 12 and the cover 14 form the accommodation space of the fuel cell stack 110.
  • the floor panel 12 and the cover 14 are fastened to each other by a plurality of bolts 16 and a plurality of nuts 18.
  • Each of the floor panel 12 and the cover 14 may be regarded as the accommodation space constituting member of the invention.
  • the fastening force acting between the floor panel 12 and the cover 14 is set such that the floor panel 12 and the cover 14 separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14 when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14.
  • the floor panel 12 corresponds to the sides Sl, S5, and S6 (see FIG. 2) of each of the end plates 114a and 114b of the fuel cell stack 110 illustrated above, and is so shaped as to abut on outer peripheral faces of the mount rubber pieces 116a and 116b. That is, in the accommodation space constituted by the floor panel 12 and the cover 14, the floor panel 12 constitutes inner walls that are each inclined at an acute angle from a floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward.
  • outer peripheral faces on the sides S5 and S6 of each of the end plates 114a and 114b (the outer peripheral faces of the mount rubber pieces 116a and 116b) abut face-to-face on (or is in planer contact with) the inclined inner walls of the floor panel respectively.
  • a recess portion 14c which corresponds to the sides S2, S3, and S4 (see FIG. 2) of each of the end plates 114a and 114b of the fuel cell stack 110 and has the fuel cell stack 110 (including the mount rubber pieces 116a and 116b) fitted therein, is formed in the cover 14. [0025] In the mounting portion 100, as shown in FIG.
  • the floor panel 12 is formed with a rib portion 12Ra in which the end plate 114a protruding from the outer peripheral face of the stacked body composed of the plurality of the single cells 112 in the fuel cell stack 110 and the mount rubber piece 116a are fitted, and a rib portion 12Rb in which the end plate 114b and the mount rubber piece 116b are fitted.
  • An inner wall surface of the rib portion 12Ra abuts on the mount rubber piece 116a.
  • An inner wall surface of the rib portion 12Rb abuts on the mount rubber pieces 116b.
  • the floor panel 12 is formed such that a gap is created between the floor panel 12 and the single cells 112 when the fuel cell stack 110 is installed. By adopting this construction, insulation of the fuel cell stack 110 against the single cells 112 can be ensured.
  • the mount rubber pieces 116a and 116b are installed on the outer peripheral portions of the end plates 114a and 114b respectively. However, additional mount rubber pieces may be installed on an outer peripheral portion of at least part of the stacked body composed of the plurality of the single cells 112.
  • FIGS. 4A and 4B are illustrative views showing an operation and an effect that are obtained by providing the vehicle 10 with the mounting portion 100.
  • an inertial force F corresponding to an acceleration of the vehicle 10 at the time of the collision or a weight of the fuel cell stack 110 is applied to an arbitrary point P on the aforementioned inclined front inner wall surface of the floor panel 12 in the direction opposite to the collision, namely, forward with respect to the vehicle.
  • Part of this inertial force F is absorbed by the mount rubber pieces 116a and 116b serving as cushioning materials.
  • a frictional force actually acts between the floor panel 12 and the fuel cell stack 110 (the mount rubber pieces 116a and 116b), the description of this frictional force is omitted herein with a view to facilitating illustration and understanding.
  • This inertial force F is decomposed into a component force Fp acting perpendicularly to the inner wall surface of the floor panel 12 in the mounting portion 100, and a component force Fs acting parallel to the inner wall surface of the floor panel 12. Accordingly, the magnitude of the component force Fp as a force serving to deform the floor panel 12 is smaller than the magnitude of the inertial force F.
  • the aforementioned inclined inner walls of the floor panel 12 are formed respectively on the front side and the rear side of the vehicle 10. Therefore, when the vehicle 10 undergoes a rear-end collision, the aforementioned operation is produced in the same manner as in the case where the vehicle 10 undergoes a head-on collision.
  • the floor panel 12 constituting the mounting portion 100 is restrained from being deformed or broken when the vehicle 10 undergoes a head-on collision or a rear-end collision.
  • an effect described below is also achieved. That is, as shown in FIG. 4A, a drag fp acting in the direction opposite to and having the same magnitude as the component force Fp of the aforementioned inertial force F is applied to the point P on the fuel cell stack 110. This drag fp is decomposed into a horizontal component force fpx acting backward with respect to the vehicle 10, and a vertical component force fpy acting vertically downward with respect to the vehicle 10.
  • the fastening force acting between the floor panel 12 and the cover 14 is set such that the floor panel 12 and the cover 14 separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14 when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14. Accordingly, when the sum of the vertical component force fpy (the sum of fpy) acting vertically downward as shown in FIG. 4A and a gravity G of the fuel cell stack 110 shown in FIG.
  • the vehicle 10 according to the second embodiment of the invention is identical to the vehicle 10 according to the first embodiment of the invention except in the structure of the mounting portion of the fuel cell stack, the shape of the fuel cell stack, and the like. Those details of the vehicle 10 according to the second embodiment of the invention which are different from the vehicle 10 according to the first embodiment of the invention will be described hereinafter.
  • FIGS. 5A and 5B are illustrative views showing the overall structure of a mounting portion IOOA in the second embodiment of the invention.
  • FIG. 5A shows a cross-section of the mounting portion IOOA as viewed from a point on the left of the vehicle 10 (a cross-sectional view taken along a line VA-VA of FIG. 5B).
  • the front side of the vehicle 10 is shown on the left side
  • the rear side of the vehicle 10 is shown on the right side
  • the upper side of the vehicle 10 is shown on the upper side
  • the lower side of the vehicle 10 is shown on the lower side.
  • FIG. 5B shows a cross-section of the mounting portion IOOA as viewed from a point above the vehicle 100 (a cross-sectional view taken along a line VB-VB of FIG. 5A).
  • the front side of the vehicle 10 is shown on the left side
  • the rear side of the vehicle 10 is shown on the right side
  • the right side of the vehicle 10 is shown on the upper side
  • the left side of the vehicle 10 is shown on the lower side.
  • a fuel cell stack HOA assumes the outer shape of a generally rectangular parallelepiped.
  • This fuel cell stack HOA is accommodated in a stack case 120 having the shape of a hexagonal column that is substantially identical to the outer shape of the fuel cell stack 110 of the first embodiment of the invention.
  • the stack case 120 has no protruding portion corresponding to the shape of the end plates 114a and 114b of the fuel cell stack 110 in the first embodiment of the invention.
  • the fuel cell stack HOA is fixed within the stack case 120 via a plurality of mount members 130 made of an insulating material.
  • the stack case 120 accommodating the fuel cell stack HOA of this embodiment of the invention may be regarded as the predetermined component of the invention.
  • the mounting portion IOOA mounted with the fuel cell stack HOA of this embodiment of the invention is equipped with a floor panel 12A of the vehicle 10, and a cover 14A fastened to the floor panel 12A in a region therebelow.
  • the floor panel 12A and the cover 14A form an accommodation space of the fuel cell stack HOA.
  • the floor panel 12A and the cover 14A are fastened to each other by the plurality of the bolts 16 and the plurality of the nuts 18.
  • the fastening force acting between the floor panel 12A and the cover 14A is set such that the floor panel 12A and the cover 14A separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14A when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14A.
  • the mounting portion IOOA as shown in FIG. 5A, the floor panel 12A and the cover 14A assume such a shape as to abut on the stack case 120.
  • the floor panel 12A in an accommodation space formed by the floor panel 12A and the cover 14A, the floor panel 12A constitutes inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward.
  • a recess portion 14Ac which corresponds to the recess portion 14c formed in the cover 14 of the mounting portion 100 of the first embodiment of the invention and has the stack case 120 fitted therein, is formed in the cover 14A.
  • the floor panel 12A is formed with a recess portion 12Ac in which a top face of the stack case 120 and part of a lateral face (oblique face) of the stack case 120 are fitted.
  • the stack case 120 is installed in the accommodation space constituted by the floor panel 12A and the cover 14A without the intervention of a cushioning material.
  • the mounting portion IOOA is substantially identical in structure to the mounting portion 100 in the first embodiment of the invention. Therefore, the force serving to deform the floor panel 12A (the component force Fp of the inertial force F in FIG. 4) is smaller than the inertial force F (see FIG. 4) when the vehicle 10 undergoes a head-on collision or a rear-end collision. Accordingly, the floor panel 12A constituting the mounting portion IOOA is restrained from being deformed or broken.
  • the fastening force acting between the floor panel 12A and the cover 14A is set such that the floor panel 12A and the cover 14A separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14A when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14A. Accordingly, as is the case with the first embodiment of the invention, the stack case 120 does not move within the passenger compartment of the vehicle 10 at the time of a collision thereof or the like. Therefore, the security of passengers in the vehicle 10 is enhanced.
  • FIGS. 6 A and 6B are illustrative views showing the overall structure of a mounting portion IOOB as a modification example of the first embodiment of the invention.
  • FIG. 6A shows a cross-section of the mounting portion IOOB as viewed from a point in front of the vehicle 10 (a cross-sectional view taken along a line VIA-VIA of FIG. 6B).
  • FIG. 6A shows a cross-section of the mounting portion IOOB as viewed from a point in front of the vehicle 10 (a cross-sectional view taken along a line VIA-VIA of FIG. 6B).
  • FIG. 6A shows a cross-section of the mounting portion IOOB as , viewed from a point above the vehicle 10 (a cross-sectional view taken along a line VIB-VIB of FIG. 6A).
  • FIG. 6B shows a cross-section of the mounting portion IOOB as , viewed from a point above the vehicle 10 (a cross-sectional view taken along a line VIB-VIB of FIG. 6A).
  • FIG. 6B shows the right side of the vehicle 10 is shown on the left side, the left side of the vehicle 10 is shown on the right side, the rear side of the vehicle 10 is shown on the upper side, and the front side of the vehicle 10 is shown on the lower side.
  • the fuel cell stack 110 accommodated in the mounting portion IOOB is identical- to the fuel cell stack 110 in the first embodiment of the invention.
  • this modification example is different from the first embodiment of the invention in the direction in which the fuel cell stack 110 is disposed. That is, the fuel cell stack 110 is accommodated in the accommodation space inside the mounting portion IOOB such that the longitudinal direction of the vehicle 10 coincides with the stacking direction of the plurality of the single cells 112 in the fuel cell stack 110.
  • the mounting portion IOOB of this modification example has a structure described below.
  • the mounting portion IOOB of this modification example is equipped with a floor panel 12B of the vehicle 10, and a cover 14B fastened to the floor panel 12B in a region therebelow.
  • the floor panel 12B and the cover 14B form the accommodation space of the fuel cell stack 110.
  • the floor panel 12B and the cover 14B are fastened to each other by the plurality of the bolts 16 and the plurality of the nuts 18.
  • the fastening force acting between the floor panel 12B and the cover 14B is set such that the floor panel 12B and the cover 14B separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14B when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14B.
  • the floor panel 12B corresponds to the sides Sl, S5, and S6 (see FIG. 2) of each of the end plates 114a and 114b of the fuel cell stack 110 illustrated above, and is so shaped as to abut on the outer peripheral faces of the mount rubber pieces 116a and 116b.
  • the floor panel 12B constitutes inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward.
  • a recess portion 14Bc which corresponds to the sides S2, S3, and S4 (see FIG. 2) of each of the end plates 114a and 114b of the fuel cell stack 110 and has the fuel cell stack 110 (including the mount rubber pieces 116a and 116b) fitted therein, is formed in the cover 14B.
  • the floor panel 12B is formed with a rib portion 12BRa in which the end plate 114a protruding from the outer peripheral face of the stacked body composed of the plurality of the single cells 112 in the fuel cell stack 110 and the mount rubber piece 116a are fitted, and a rib portion 12BRb in which the end plate 114b and the mount rubber pieces 116b are fitted.
  • An inner wall surface of the rib portions 12BRa abuts on the mount rubber piece 116a.
  • An inner wall surface of the rib portion 12BRb abuts on the mount rubber pieces 116b.
  • the mounting portion IOOB is substantially identical in structure to the mounting portion 100 in the first embodiment of the invention. Therefore, the force serving to deform the floor panel 12B (the component force Fp of the inertial force F in FIG. 4) is smaller than the inertial force F (see FIG. 4) when the vehicle 10 undergoes a side collision. Accordingly, the floor panel 12B constituting the mounting portion IOOB is restrained from being deformed or broken.
  • the fastening force acting between the floor panel 12B and the cover 14B is set such that the floor panel 12B and the cover 14B separate from each other due to breakage of the plurality of the bolts 16 and the plurality of the nuts 18 or the cover 14B when a force equal to or larger than a predetermined value is applied vertically downward to the cover 14B. Accordingly, as is the case with the first embodiment of the invention, the fuel cell stack 110 does not move within the passenger compartment of the vehicle 10 at the time of a collision thereof or the like. Therefore, the security of passengers in the vehicle 10 is enhanced.
  • the floor panel 12 constitutes the inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space of the fuel cell stack 110 decreases in width vertically upward.
  • the invention is not limited to this construction.
  • FIG. 7 is an illustrative view showing the overall structure of a mounting portion IOOC as another modification example of the first embodiment of the invention.
  • FIG. 7 shows a cross-section of the mounting portion IOOC as viewed from a point on the left of the vehicle 10.
  • the front side of the vehicle 10 is shown on the left side
  • the rear side of the vehicle 10 is shown on the right side
  • the upper side of the vehicle 10 is shown on the upper side
  • the lower side of the vehicle 10 is shown on the lower side.
  • the mounting portion IOOC of this modification example is equipped with a floor panel 12C of the vehicle 10, and a cover 14C fastened to the floor panel 12C in a region thereabove.
  • the floor panel 12C and the cover 14C form the accommodation space of the fuel cell stack 110.
  • the fuel cell stack 110 accommodated in the mounting portion IOOC is identical to the fuel cell stack 110 of the first embodiment of the invention.
  • the floor panel 12C and the cover 14C are fastened to each other by the plurality of the bolts 16 and the plurality of the nuts 18.
  • the cover 14C corresponds to the sides Sl, S5, and S6 (see FIG.
  • the cover 14C constitutes inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward.
  • a recess portion 12Cc which corresponds to the sides S2, S3, and S4 (see FIG.
  • the mounting portion IOOC is substantially identical in structure to the mounting portion 100 in the first embodiment of the invention. Therefore, the force serving to deform the cover 14C (which corresponds to the component force Fp of the inertial force F in FIG. 4) is smaller than the inertial force F (see FIG. 4) when the vehicle 10 undergoes a head-on collision or a rear-end collision.
  • FIG. 8 is an illustrative view showing the overall structure of a mounting portion IOOD as still another modification example of the first embodiment of the invention. As is the case with FIG. 7, FIG. 8 shows a cross-section of the mounting portion IOOD as viewed from a point on the left of the vehicle 10. In FIG. 8, the front side of the vehicle 10 is shown on the left side, the rear side of the vehicle 10 is shown on the right side, the upper side of the vehicle 10 is shown on the upper side, and the lower side of the vehicle 10 is shown on the lower side.
  • the mounting portion IOOC shown in FIG. 7 and the mounting portion IOOD shown in FIG. 8 are different from each other in that the cover 14C and a cover 14D are different in shape from each other. That is, as shown in FIG. 8, as is the case with the cover 14C in the mounting portion lOOC, in an accommodation space constituted by the floor panel 12C and the cover 14D, the cover 14D in the mounting portion IOOD has inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward, but has a portion thicker than the cover 14C.
  • the mounting portion IOOC and the mounting portion IOOD are identical to each other in other details. By adopting this construction as well, the same effect as in the case of the mounting portion IOOC shown in FIG. 7 can be obtained.
  • the cover 14C or 14D constituting the accommodation space of the fuel cell stack 110 it is appropriate for the cover 14C or 14D constituting the accommodation space of the fuel cell stack 110 to have inner walls that are each inclined at an acute angle from the floor surface (horizontal surface) of the vehicle 10 such that the accommodation space decreases in width vertically upward. This also holds true for the floor panel 12, 12A, or 12B in the mounting portion 100, 10OA, or IOOB described above.
  • Each of the mounting portion 100 in the first embodiment of the invention, the mounting portion IOOA in the second embodiment of the invention, and the mounting portions IOOB, IOOC, and IOOD in the modification examples, which have been described above, provides the fuel cell stack 110 or the stack case 120 with a structure for coping with a head-on collision, a rear-end collision, or a side collision of the vehicle 10.
  • the invention is not limited to this construction.
  • the mounting portion may provide the fuel cell stack 110 or the stack case 120 with a structure for coping with a head-on collision, a rear-end collision, a side collision, and also an oblique collision of the vehicle 10.
  • the inner walls of the mounting portion may partially assume such a shape that each of the inner walls forms an acute angle with the floor surface (horizontal surface) of the vehicle 10 and that the accommodation space decreases in width vertically upward, for example, the shape of lateral faces of a polygonal truncated pyramid or a circular truncated cone.
  • the fuel cell stack or the stack case is preferably shaped so as to correspond in shape to the inner walls of the above-mentioned mounting portion and abut face-to-face on the inner walls.
  • FIG. 9 is. a perspective view showing the exterior appearance of a fuel cell stack HOB as a modification example. As shown in FIG. 9, this fuel cell stack HOB is formed by stacking a plurality of single cells 112A having a rectangular planar shape on one another. Collector plates and insulator plates are disposed in this order respectively at both ends of a stacked body composed of the plurality of single cells 112A.
  • FIG. 10 is a perspective view showing the exterior appearance of a fuel cell stack HOC as another modification example. As shown in FIG.
  • this fuel cell stack HOC has mount rubber pieces 116Ca and 116Cb, which are substantially identical in outer shape to the end plates 114a and 114b having the hexagonal planar shape in the fuel cell stack HO of the first embodiment of the invention, installed respectively on outer peripheral portions of end plates in the fuel cell stack HOA having the outer shape of the rectangular parallelepiped as in the second embodiment of the invention.
  • the cover 14 or 14A is provided with the recess portion 14c or 14Ac in the mounting portion 100 or 10OA.
  • the recess portion 14c or 14Ac may be omitted.
  • the fuel cell stack 110 or the stack case 120 it is appropriate for the fuel cell stack 110 or the stack case 120 to generally assume the shape of a trapezoidal prism corresponding to the internal shape of the mounting portion 100 or 10OA.
  • the invention is applicable to a mounting portion for mounting other components for driving the vehicle 10, such as a battery, a fuel tank, a motor, and the like.
  • the mounting portion is disposed below the seats of the vehicle 10, but the invention is not limited to this construction.
  • the position of the vehicle 10 where the mounting portion is disposed can be arbitrarily set. However, from the standpoint of running stability of the vehicle 10, it is preferable to dispose the mounting portion in consideration of the weight balance of the vehicle 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention prévoit un véhicule (10) équipé d'un composant prédéterminé (110, HOA, HOB, HOC) pour entraîner le véhicule, et un élément constituant un espace de logement (12, 12A, 12B, 12C, 14, 14A, 14B, 14C, 14D) prévu sur une partie de la surface de plancher du véhicule afin de constituer un espace de logement pour loger le composant prédéterminé. L'élément constituant un espace de logement possède une paroi interne inclinée de manière à former un angle aigu avec une surface de plancher du véhicule dans l'espace de logement, et le composant prédéterminé bute face à face sur au moins une partie de la paroi interne inclinée de l'élément constituant un espace de logement.
PCT/IB2008/000866 2007-04-11 2008-04-10 Véhicule WO2008125946A1 (fr)

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JP2007104051A JP2008260382A (ja) 2007-04-11 2007-04-11 車両
JP2007-104051 2007-04-11

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FR2946593A1 (fr) * 2009-06-16 2010-12-17 Renault Sas Agencement securise d'une batterie dans un vehicule automobile
WO2011042634A1 (fr) * 2009-10-09 2011-04-14 Renault Sas Dispositif de carénage d'une partie inférieure d'une batterie électrique d'un véhicule automobile
EP2497664A1 (fr) * 2009-11-06 2012-09-12 Kabushiki Kaisha Toyota Jidoshokki Structure d'installation de batterie pour automobile électrique
DE102011017459A1 (de) * 2011-04-19 2012-10-25 Volkswagen Ag Kraftfahrzeug, insbesondere Elektro- oder Hybridfahrzeug
US8561743B2 (en) 2009-02-24 2013-10-22 Nissan Motor Co., Ltd. Vehicle battery mounting structure
WO2016082818A1 (fr) * 2014-11-27 2016-06-02 Constin Gmbh Véhicule routier
CN106985648A (zh) * 2017-03-31 2017-07-28 佛山市沫汎汽车用品有限公司 一种新能源汽车装置
US10276848B2 (en) * 2012-11-27 2019-04-30 Ford Global Technologies, Llc Protective vehicle battery cage and method of making a battery cage
US10286775B2 (en) 2012-05-17 2019-05-14 Toyota Jidosha Kabushiki Kaisha Vehicle
US10766347B2 (en) 2009-02-24 2020-09-08 Nissan Motor Co., Ltd. Vehicle battery mounting structure
CN111755729A (zh) * 2019-03-28 2020-10-09 本田技研工业株式会社 燃料电池系统以及燃料电池车辆
WO2021094165A1 (fr) * 2019-11-12 2021-05-20 Benjamin Duros Véhicule pour circulation routière avec une batterie de traction de remplacement échangeable
US11059522B2 (en) 2009-02-24 2021-07-13 Nissan Motor Co., Ltd. Vehicle battery mounting structure

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CN107848431A (zh) * 2015-06-10 2018-03-27 巴特斯韦普公司 电池交换系统
JP7410210B2 (ja) 2022-04-28 2024-01-09 本田技研工業株式会社 燃料電池システム

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Cited By (19)

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Publication number Priority date Publication date Assignee Title
US8561743B2 (en) 2009-02-24 2013-10-22 Nissan Motor Co., Ltd. Vehicle battery mounting structure
US11059522B2 (en) 2009-02-24 2021-07-13 Nissan Motor Co., Ltd. Vehicle battery mounting structure
US10766347B2 (en) 2009-02-24 2020-09-08 Nissan Motor Co., Ltd. Vehicle battery mounting structure
WO2010146269A3 (fr) * 2009-06-16 2011-02-24 Renault Sas Agencement sécurisé d'une batterie dans un véhicu le automobile
FR2946593A1 (fr) * 2009-06-16 2010-12-17 Renault Sas Agencement securise d'une batterie dans un vehicule automobile
CN102802982A (zh) * 2009-06-16 2012-11-28 雷诺股份公司 电池在机动车辆中的固定布置
WO2011042634A1 (fr) * 2009-10-09 2011-04-14 Renault Sas Dispositif de carénage d'une partie inférieure d'une batterie électrique d'un véhicule automobile
FR2951124A1 (fr) * 2009-10-09 2011-04-15 Renault Sa Dispositif de carenage d'une partie inferieure d'une batterie electrique d'un vehicule automobile
EP2497664A1 (fr) * 2009-11-06 2012-09-12 Kabushiki Kaisha Toyota Jidoshokki Structure d'installation de batterie pour automobile électrique
EP2497664A4 (fr) * 2009-11-06 2013-11-13 Toyota Jidoshokki Kk Structure d'installation de batterie pour automobile électrique
CN102666165A (zh) * 2009-11-06 2012-09-12 株式会社丰田自动织机 电动汽车的电池安装构造
DE102011017459A1 (de) * 2011-04-19 2012-10-25 Volkswagen Ag Kraftfahrzeug, insbesondere Elektro- oder Hybridfahrzeug
US10286775B2 (en) 2012-05-17 2019-05-14 Toyota Jidosha Kabushiki Kaisha Vehicle
US10276848B2 (en) * 2012-11-27 2019-04-30 Ford Global Technologies, Llc Protective vehicle battery cage and method of making a battery cage
WO2016082818A1 (fr) * 2014-11-27 2016-06-02 Constin Gmbh Véhicule routier
CN106985648A (zh) * 2017-03-31 2017-07-28 佛山市沫汎汽车用品有限公司 一种新能源汽车装置
CN111755729A (zh) * 2019-03-28 2020-10-09 本田技研工业株式会社 燃料电池系统以及燃料电池车辆
CN111755729B (zh) * 2019-03-28 2023-08-22 本田技研工业株式会社 燃料电池系统以及燃料电池车辆
WO2021094165A1 (fr) * 2019-11-12 2021-05-20 Benjamin Duros Véhicule pour circulation routière avec une batterie de traction de remplacement échangeable

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