JP7106617B2 - fuel cell vehicle - Google Patents

Description

The present invention relates to a fuel cell vehicle equipped with a drive motor and a fuel cell.

2. Description of the Related Art Vehicles equipped with a driving motor and a fuel cell (hereinafter referred to as "fuel cell vehicle") have been known for some time. In a fuel cell vehicle, H2 gas (hereinafter referred to as "hydrogen") as fuel and _O2 gas in the air (hereinafter referred to as "oxygen") as an oxidant are supplied to the fuel cell, and the _two react. Electric power generated when water (steam) is generated is taken out and used as electric power for driving the drive motor. Fuel cell vehicles emit only water vapor when running, and do not emit air pollutants such as nitrogen oxides (NOx) and sulfur oxides (SOx), or carbon dioxide (CO ₂ ), which causes global warming. As environment-friendly vehicles, they are expected to spread not only in passenger cars but also in commercial vehicles such as trucks.

On the other hand, since hydrogen, which is the fuel for fuel cells, is the lightest gas and is highly susceptible to combustion and explosion, in addition to measures to prevent leakage of hydrogen, in fuel cell vehicles, early detection and leakage control should be implemented in the unlikely event of hydrogen leakage. It is essential to prevent the stagnant hydrogen that has been released and to discharge it quickly.

JP-A-8-177641

For example, Patent Literature 1 describes a commercial vehicle such as a truck or a bus in which natural gas compressed and filled in a tank is supplied to an engine as fuel. Natural gas, like hydrogen, is highly combustible and explosive. However, although Patent Literature 1 describes a check valve that prevents backflow leakage of natural gas, it does not describe a specific safety measure in the unlikely event that natural gas leaks out.

The present invention provides a fuel cell vehicle with improved safety against hydrogen leakage.

The present invention
A vehicle body having a frame structure including a pair of left and right side members extending in the front-rear direction,
A passenger room located in the front of the vehicle with seats inside for the passengers to sit on,
and a loading platform provided behind the passenger compartment,
a fuel cell;
a hydrogen tank placed below the loading platform and filled with hydrogen;
a hydrogen filling port for receiving hydrogen to be filled into the hydrogen tank from the outside;
a hydrogen pipe connecting the fuel cell, the hydrogen tank, and the hydrogen filling port;
a secondary battery;
a drive motor;
a control unit that controls the input/output power of the drive motor;
a charging port for receiving power to charge the secondary battery from the outside;
A fuel cell vehicle equipped with a power line that electrically connects the fuel cell, the secondary battery, the drive motor, the control unit, and the charging port,
The hydrogen filling port and the charging port are spaced apart in the front-rear direction,
The hydrogen filling port is arranged rearward of the passenger compartment and forward of the hydrogen tank in the longitudinal direction.

According to the present invention, the hydrogen filling port and the charging port are spaced apart in the front-rear direction. can be prevented from coming into contact with As a result, hydrogen leaking from the hydrogen filling port can be prevented from coming into contact with the charging port and igniting. In addition, since the hydrogen filling port is arranged behind the passenger compartment and in front of the hydrogen tank in the longitudinal direction, even if hydrogen leaks from the hydrogen filling port, the hydrogen leaking from the hydrogen filling port is , and is discharged into the atmosphere above the fuel cell vehicle through the space between the passenger compartment and the luggage compartment. As a result, hydrogen leaking from the hydrogen filling port can be prevented from accumulating below the passenger compartment or below the loading platform. In this way, the fuel cell vehicle has improved safety against hydrogen leakage.

1 is a schematic top view showing a fuel cell vehicle according to a first embodiment of the invention; FIG. FIG. 2 is a schematic side view of the fuel cell vehicle of FIG. 1; FIG. 3 is a schematic cross-sectional view of the fuel cell vehicle of FIG. 2 taken along line AA; FIG. 4 is a schematic cross-sectional view showing an example of the arrangement direction of the hydrogen filling port when viewed from the front-rear direction of the vehicle body; FIG. 5 is a schematic cross-sectional view showing another example of the arrangement direction of the hydrogen filling port when viewed from the front-rear direction of the vehicle body; FIG. 2 is a schematic top view showing an example of the positional relationship among a spare tire, a hydrogen tank, and a secondary battery in the fuel cell vehicle of FIG. 1; FIG. 2 is a schematic top view showing an example of a positional relationship between a support member, a hydrogen tank, and a secondary battery in the fuel cell vehicle of FIG. 1; 2 is a schematic top view showing respective center-of-gravity positions of a hydrogen tank and a secondary battery in the fuel cell vehicle of FIG. 1; FIG. FIG. 3 is a schematic side view showing a modification of the arrangement of charging ports in the fuel cell vehicle of FIG. 1; FIG. 4 is a schematic top view showing a fuel cell vehicle according to a second embodiment of the invention;

Hereinafter, each embodiment of the fuel cell vehicle of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the drawings are viewed in the direction of the reference numerals. Further, in the following description, front and rear, left and right, and up and down directions are described according to the direction viewed from the driver of the vehicle. is shown as L, upward as U, and downward as D.

[First embodiment]
First, a fuel cell vehicle according to a first embodiment of the present invention, including modifications thereof, will be described with reference to FIGS. 1 to 7. FIG.

(vehicle configuration)
As shown in FIGS. 1 and 2, the fuel cell vehicle 1 includes a pair of left and right side members 2 extending in the front-rear direction, and a pair of left and right side members 2 extending in the vehicle width direction between the left and right side members 2 to connect the left and right side members 2 . A vehicle body B having a frame structure formed in a ladder shape by a plurality of cross members 3 that connect to each other. Above the front ends of the pair of left and right side members 2, there is provided a passenger compartment 4 in which a seat 6 for a passenger is provided. The passenger compartment 4 is arranged in the front part of the fuel cell vehicle 1 . A loading platform 5 is provided above the left and right side members 2 behind the passenger compartment 4 . A pair of left and right front wheels FW are provided below the passenger compartment 4 . A pair of left and right rear front wheels RW1 and rear rear wheels RW2 are provided behind the front wheels FW. The rear front wheel RW1 has two wheels on each side, and the rear rear wheel RW2 has two wheels on each side behind the front rear wheel RW1. The rear front wheel RW1 and the rear rear wheel RW2 are provided outside the pair of left and right side members 2 in the vehicle width direction.

(hydrogen system)
A fuel cell FC is mounted below the cabin 4 .

The fuel cell FC has, for example, a single cell of a polymer electrolyte fuel cell in which an ion exchange membrane (proton exchange membrane) is sandwiched between a pair of electrodes consisting of a fuel electrode (anode) and an oxygen electrode (cathode), and a separator ( A fuel cell stack having a structure in which several hundred single cells are stacked and connected in series via bipolar plates) is used. A layered catalyst made of platinum (Pt) or the like is provided near the interface between each electrode and the ion exchange membrane, and the hydrogen supplied to the fuel electrode is decomposed into electrons and hydrogen ions (protons) by the action of the catalyst. Electrons are extracted to an external circuit connected to the fuel electrode, and hydrogen ions pass through the ion exchange membrane to reach the oxygen electrode. At the oxygen electrode, the action of a catalyst combines hydrogen ions, oxygen in the air, and electrons arriving via the external circuit to produce water. used as

Below the cabin 4, a housing space 7 is formed in which the fuel cell FC is housed. The interior of the passenger compartment 4 and the accommodation space 7 are partitioned so that hydrogen does not flow. The upper part of the accommodation space 7 is covered with the ceiling surface formed by the bottom of the passenger compartment 4, and the rear part is open. there is A fuel cell FC is arranged in the accommodation space 7 .

Two hydrogen tanks TNK filled with compressed hydrogen to be supplied to the fuel cell FC are provided below the loading platform 5 on the outside of the pair of left and right side members 2 in the vehicle width direction.

The two hydrogen tanks TNK are provided one each on the outside of the pair of left and right side members 2 in the vehicle width direction. In this embodiment, the left and right hydrogen tanks TNK are both located in front of the rear front wheel RW1 and the rear rear wheel RW2, and are arranged to face each other in the vehicle width direction so as to overlap each other in the front-rear direction.

The hydrogen tank TNK includes a tank body extending in the front-rear direction in a cylindrical shape, a hemispherical tank front end closing the front end of the tank body, and a hemispherical tank rear end closing the rear end of the tank body. have integrally. A filling and discharging hole 8 for filling and discharging hydrogen is provided near the center of the front end of the tank.

On one side surface of the vehicle body B in the vehicle width direction, which is the left side surface of the vehicle body B in this embodiment, a hydrogen filling port RC1 is provided for receiving hydrogen from the outside to fill the hydrogen tank TNK. For example, a filling nozzle NZ attached to the tip of a hose of a hydrogen dispenser installed in a hydrogen station can be connected to the hydrogen filling port RC1 to fill the hydrogen tank TNK with compressed hydrogen from the hydrogen dispenser.

The hydrogen filling port RC1 is arranged behind the cabin 4 and ahead of the hydrogen tank TNK in the longitudinal direction. More preferably, the hydrogen filling port RC1 is arranged between the passenger compartment 4 and the loading platform 5 in the longitudinal direction.

Hydrogen is the lightest and most diffusible gas. Therefore, even if hydrogen leaks from the hydrogen filling port RC1, the hydrogen leaking from the hydrogen filling port RC1 passes between the passenger compartment 4 and the loading platform 5, It is discharged into the atmosphere above the fuel cell vehicle 1 . As a result, hydrogen leaked from the hydrogen filling port RC1 can be prevented from remaining in the storage space 7 below the cabin 4 and below the loading platform 5 .

The fuel cell vehicle 1 includes a hydrogen pipe Lh that connects the fuel cell FC, the filling/discharging holes 8 of the left and right hydrogen tanks TNK, and the hydrogen filling port RC1.

The hydrogen pipe Lh has a main pipe portion Lh1 extending in the front-rear direction and having a front end connected to the fuel cell FC, and a rear end portion of the main pipe portion Lh1 extending from the left and right hydrogen tanks TNK and connected to the charging/discharging holes 8 of the left and right hydrogen tanks TNK. and a filling port connecting pipe portion Lh3 extending from the main pipe portion Lh1 or the hydrogen tank connecting pipe portion Lh2 and connecting to the hydrogen filling port RC1.

The main pipe portion Lh1 extends in the longitudinal direction between the pair of left and right side members 2 in the vehicle width direction, and is arranged at a position not overlapping the side members 2 in the vertical direction, that is, below the side members 2 in this embodiment. there is

Therefore, the main pipe portion Lh1 extends in the longitudinal direction between the pair of left and right side members 2 in the vehicle width direction. It is protected by a pair of side members 2. Further, since the main pipe portion Lh1 is arranged at a position that does not overlap the side member 2 in the vertical direction, that is, below the side member 2 in this embodiment, the side member 2 may be damaged if the fuel cell vehicle 1 collides with the side. Even if the main pipe portion Lh1 is deformed inward in the vehicle width direction, it is possible to reduce the risk of hydrogen leakage occurring in the main pipe portion Lh1 due to contact with and damage to the side member 2 deformed inward in the vehicle width direction.

A temperature activated pressure relief device (TPRD) is provided at the connection between the rear end of the main pipe Lh1 and the pair of left and right hydrogen tank connection pipes Lh2.

The hydrogen tank TNK is compressed and filled with hydrogen at a high pressure of, for example, about 70 MPa (approximately 700 atmospheres). Therefore, when the internal temperature of the hydrogen tank TNK rises due to the influence of the external environment or the like, there is a risk that the compressed hydrogen will expand and the hydrogen tank TNK will explode. When the internal temperature of the hydrogen tank TNK reaches a predetermined temperature, the thermally actuated overpressure protection safety device TPRD operates to safely release a portion of the hydrogen compressed and filled in the hydrogen tank TNK into the atmosphere. A device to prevent the hydrogen tank TNK from bursting.

In this embodiment, the thermally actuated overpressure protection safety device TPRD is arranged between the passenger compartment 4 and the cargo bed 5 in the longitudinal direction.

Therefore, even if the thermally actuated overpressure protection safety device TPRD is activated and hydrogen is released from the hydrogen tank TNK, the released hydrogen is transferred to the passenger compartment 4 and the cargo bed 5 as indicated by the arrow A in FIG. and is discharged into the atmosphere above the fuel cell vehicle 1 . As a result, the hydrogen released from the hydrogen tank TNK due to the operation of the thermally actuated overpressure protection safety device TPRD can be prevented from accumulating in the housing space 7 and below the loading platform 5 .

(Electrical system)
A secondary battery BAT, a driving motor MOT, and a control unit PCU are mounted on the fuel cell vehicle 1 below the loading platform 5 . The driving electric motor MOT is an electric motor that drives at least one of a pair of left and right rear front wheels RW1 and rear rear wheels RW2. The secondary battery BAT is a rechargeable storage battery such as a lithium ion battery, a nickel metal hydride battery, or a capacitor. The control unit PCU is capable of converting DC power into AC power and AC power into DC power. is a device that controls

In this embodiment, one secondary battery BAT is provided on each of the pair of left and right side members 2 on the outside in the vehicle width direction. In this embodiment, the left and right secondary batteries BAT are arranged behind the left and right hydrogen tanks TNK and ahead of the rear front wheel RW1 and the rear rear wheel RW2.

The driving electric motor MOT is located between the pair of left and right side members 2 in the vehicle width direction, behind the left and right secondary batteries BAT in the front-rear direction, and overlaps the rear front wheel RW1 and/or the rear rear wheel RW2. are placed.

The control unit PCU is arranged between a pair of left and right side members 2 in the vehicle width direction, and is arranged behind the left and right hydrogen tanks TNK and in front of the left and right secondary batteries BAT in the front-rear direction. The arrangement position of the control unit PCU is arbitrary. For example, the secondary battery BAT and the control unit PCU may be arranged separately, or may be arranged as an IPU (Intelligent Power Unit) in which the secondary battery BAT and the control unit PCU are housed in one housing.

A charging port RC2 is provided on one side surface of the vehicle body B in the vehicle width direction, that is, on the left side surface of the vehicle body B in this embodiment, to receive electric power charged from an external power supply to the secondary battery BAT. For example, a charging plug (not shown) of an external power supply can be connected to the charging port RC2 to charge the secondary battery BAT with power from the external power supply.

The charging port RC2 is arranged between the hydrogen tank TNK and the secondary battery BAT in the front-rear direction, that is, rearward of the hydrogen tank TNK and forward of the secondary battery BAT.

The fuel cell FC, drive motor MOT, secondary battery BAT, control unit PCU, and charging port RC2 are electrically connected by a power line Le.

The power line Le includes a three-phase AC motor connection line Le1 that electrically connects the drive motor MOT and the control unit PCU, and a DC fuel cell connection line that electrically connects the fuel cell FC and the control unit PCU. a DC secondary battery connection line Le3 that electrically connects the left and right secondary batteries BAT and the control unit PCU; and a charging port connection that electrically connects the charging port RC2 and the control unit PCU. and lines Le4.

The electric motor connection line portion Le1 and the fuel cell connection line portion Le2 extend in the longitudinal direction between the pair of left and right side members 2 in the vehicle width direction, and are positioned so as not to overlap the side members 2 in the vertical direction. placed below 2.

Therefore, since the electric motor connection line portion Le1 and the fuel cell connection line portion Le2 extend in the front-rear direction between the pair of left and right side members 2 in the vehicle width direction, even if the fuel cell vehicle 1 undergoes a side collision, , the electric motor connection line portion Le1 and the fuel cell connection line portion Le2 are protected by a pair of left and right side members 2. As shown in FIG. Furthermore, the electric motor connection wire portion Le1 and the fuel cell connection wire portion Le2 are arranged at positions not overlapping the side member 2 in the vertical direction, that is, below the side member 2 in the present embodiment. Even if the side member 2 deforms inward in the vehicle width direction due to a side collision, the electric motor connecting wire portion Le1 and the fuel cell connecting wire portion Le2 are damaged by coming into contact with the side member 2 deformed inward in the vehicle width direction. can be suppressed, and the risk of electric leakage occurring in the electric motor connecting wire portion Le1 and the fuel cell connecting wire portion Le2 can be reduced.

The secondary battery connection line portion Le3 and the charging port connection line Le4 extend in the vehicle width direction from the control unit PCU and extend to the outside of the side member 2 in the vehicle width direction.

As shown in FIG. 3, the secondary battery connection line portion Le3 extends outward in the vehicle width direction from the control unit PCU in a front view, and is positioned so as not to overlap the side member 2 in the vertical direction. It is arranged below the member 2 .

As a result, even if the side member 2 deforms inward in the vehicle width direction due to a side collision of the fuel cell vehicle 1, the secondary battery connection line portion Le3 contacts the side member 2 deformed inward in the vehicle width direction. It is possible to reduce the risk that the secondary battery connection line portion Le3 will be damaged and cause an electric leakage.

(Safety measures against hydrogen leakage)
By the way, when hydrogen leakage occurs in the fuel cell vehicle 1, the secondary battery BAT, the drive motor MOT, the control unit PCU, the charging port RC2, and the power line Le can become ignition points when they come into contact with the leaked hydrogen. Therefore, the secondary battery BAT, the drive motor MOT, the control unit PCU, the charging port RC2, and the power line Le should be arranged so as not to come into contact with the leaked hydrogen when hydrogen leaks from the fuel cell vehicle 1. is preferred.

1 and 2, in the present embodiment, the hydrogen filling port RC1 is arranged between the passenger compartment 4 and the cargo bed 5 in the front-rear direction, and the charging port RC2 is located in the front-rear direction of the hydrogen tank TNK. and the secondary battery BAT, that is, behind the hydrogen tank TNK and in front of the secondary battery BAT. ing.

Therefore, even if hydrogen leaks from the hydrogen filling port RC1, it is possible to prevent the leaked hydrogen from contacting the charging port RC2. As a result, hydrogen leaking from the hydrogen filling port RC1 can be prevented from coming into contact with the charging port RC2 and igniting.

Further, the hydrogen filling port RC1 is arranged between the passenger compartment 4 and the cargo bed portion 5 in the front-rear direction, and the secondary battery BAT and the charging port RC2 are located below the cargo bed portion 5 than the hydrogen tank TNK. Since they are arranged at the rear, the hydrogen filling port RC1, the secondary battery BAT and the charging port RC2 are spaced apart from each other in the front-rear direction with the hydrogen tank TNK interposed therebetween.

Therefore, even if hydrogen leaks from the hydrogen filling port RC1, it is possible to further prevent the leaked hydrogen from contacting the secondary battery BAT and the charging port RC2. This makes it possible to further prevent hydrogen leaking from the hydrogen filling port RC1 from coming into contact with the secondary battery BAT and the charging port RC2 and igniting.

The hydrogen filling port RC1 is arranged in the vehicle width direction inside the vehicle width direction outer end of the hydrogen tank TNK.

As a result, the hydrogen tank TNK protects the hydrogen filling port RC1 against obstacles from the outside in the vehicle width direction, thereby preventing damage to the hydrogen filling port RC1 and the occurrence of hydrogen leakage or the like.

Further, the hydrogen filling port RC1 is arranged in the vehicle width direction inside the vehicle width direction outer end of the secondary battery BAT.

As a result, the hydrogen filling port RC1 is protected by the secondary battery BAT against obstacles from the outside in the vehicle width direction, so that damage to the hydrogen filling port RC1 and the occurrence of hydrogen leakage can be prevented. .

Further, the hydrogen filling port RC1 is arranged between the upper end portion and the lower end portion of the hydrogen tank TNK in the vertical direction.

As a result, the hydrogen tank TNK protects the hydrogen filling port RC1 against obstacles from above and below, thereby preventing damage to the hydrogen filling port RC1 and the occurrence of hydrogen leakage or the like.

The charging port RC2 is arranged on the vehicle width direction inner side of the vehicle width direction outer end of the hydrogen tank TNK in the vehicle width direction.

As a result, the charging port RC2 is protected by the hydrogen tank TNK against obstacles from the outside in the vehicle width direction, so that the charging port RC2 can be prevented from being damaged and causing electric leakage or the like.

Further, the charging port RC2 is arranged on the vehicle width direction inner side of the vehicle width direction outer end of the secondary battery BAT in the vehicle width direction.

As a result, the charging port RC2 is protected by the secondary battery BAT against obstacles from the outside in the vehicle width direction, so that the charging port RC2 can be prevented from being damaged and causing electric leakage or the like.

Further, the charging port RC2 is arranged between the upper end portion and the lower end portion of the hydrogen tank TNK in the vertical direction.

As a result, the charging port RC2 is protected by the hydrogen tank TNK against obstacles from above and below, so that the charging port RC2 can be prevented from being damaged and causing an electric leak or the like.

The secondary battery BAT includes a power storage module 11 and a housing 12 that accommodates the power storage module 11 . The housing 12 is made of a material having a higher strength than the hydrogen tank TNK. The secondary battery BAT is arranged such that the outer end of the housing 12 in the vehicle width direction is positioned further outward in the vehicle width direction than the outer end of the hydrogen tank TNK in the vehicle width direction.

Therefore, the power storage module 11 is protected by the housing 12, and the hydrogen tank TNK is protected against obstacles from the outside in the vehicle width direction by the housing 12 of the secondary battery BAT, which has higher strength than the hydrogen tank TNK. Since the storage module 11 is protected, it is possible to prevent electric leakage or the like from being damaged due to damage to the storage module 11, and furthermore, it is possible to prevent hydrogen leakage or the like from being damaged due to damage to the hydrogen tank TNK.

Secondary battery BAT further includes an in-housing cross member 13 that extends in the vehicle width direction inside housing 12 and connects the vehicle width direction inner side surface and the vehicle width direction outer side surface of housing 12 . The secondary battery BAT is arranged so that the in-housing cross member 13 overlaps the cross member 3 of the vehicle body B in a side view.

Therefore, when the fuel cell vehicle 1 has a side collision, the casing 12 of the secondary battery BAT comes into contact with the collision object before the hydrogen tank TNK. Then, a load path (load path) is formed through which the collision load is transmitted to the cross member 3 of the vehicle body B through the cross member 13 in the housing and to the cross member 3 of the vehicle body B inward in the vehicle width direction. The deformation of the B side member 2 inward in the vehicle width direction is suppressed. As a result, the deformation of the housing 12 of the secondary battery BAT is suppressed, so that it is possible to prevent the power storage module 11 from being damaged and cause an electric leakage or the like. is transmitted to the cross member 3 of the vehicle body B extending in the vehicle width direction, deformation of the vehicle body B is suppressed.

The fuel cell vehicle 1 further includes a junction box JB that relays power supplied from the power line Le to the power storage module 11 of the secondary battery BAT. The junction box JB has electronic parts such as relays, fuses, and contactors, and is a device capable of interrupting the circuit when an abnormality occurs.

The junction box JB is fixed to the housing 12 of the secondary battery BAT. The junction box JB projects further outward in the vehicle width direction than the housing 12, and is arranged at a position overlapping the in-housing cross member 13 and the cross member 3 of the vehicle body B in a side view.

Since the junction box JB protrudes further outward in the vehicle width direction than the housing 12 in the vehicle width direction, in the event of a side collision of the fuel cell vehicle 1, the junction box JB comes into contact with the colliding object before the housing 12. do. As a result, the junction box JB can receive the collision load when the fuel cell vehicle 1 has a side collision, and damage to the power storage module 11 of the secondary battery BAT can be suppressed.

Further, when the junction box JB comes into contact with a collision object and is damaged, the circuit inside the junction box JB is cut off, and the circuit connecting the secondary battery BAT and the secondary battery connecting line portion Le3 is cut off. As a result, it is possible to prevent high-voltage power from being discharged from the secondary battery BAT, so that the electrical safety of the fuel cell vehicle 1 is improved.

(Hydrogen filling port)
As shown in FIG. 4A, the hydrogen filling port RC1 is arranged above the upper end of at least one of the front wheels FW, the rear front wheels RW1, and the rear rear wheels RW2, and extends outward in the vehicle width direction when viewed in the front-rear direction. It is arranged so as to face diagonally downward at 5 to 30 degrees with respect to the horizontal line.

Therefore, since the hydrogen filling port RC1 is arranged above the upper end of at least one of the front wheels FW, the rear front wheels RW1, and the rear rear wheels RW2, when the fuel cell vehicle 1 is running, the front wheels FW and the rear front wheels RW1 , and foreign matter such as dust, mud, and water scattered from the rear wheel RW2 can be prevented from adhering to the hydrogen filling port RC1. In addition, since the hydrogen filling port RC1 is arranged above at least one of the front wheel FW, the rear front wheel RW1, and the rear rear wheel RW2, it is arranged at a high position. is arranged so as to face obliquely downward toward the outside in the vehicle width direction when viewed from the front-rear direction. can be easily connected to

(Modified example of hydrogen filling port)
As shown in FIG. 4B, the hydrogen filling port RC1 is arranged below the upper end of at least one of the front wheels FW, the rear front wheels RW1, and the rear rear wheels RW2, and extends outward in the vehicle width direction when viewed in the front-rear direction. It may be arranged to face diagonally upward at 15 to 40 degrees with respect to the horizontal line. At this time, the hydrogen filling port RC1 is preferably housed in a dustproof and waterproof protective case PCS.

In this case, the hydrogen filling port RC1 is arranged below the upper end of at least one of the front wheel FW, the rear front wheel RW1, and the rear rear wheel RW2, so is arranged at a low position. Furthermore, since the hydrogen filling port RC1 is arranged so as to face obliquely upward toward the outside in the vehicle width direction when viewed from the front-rear direction, the operator must use the filling nozzle NZ attached to the tip of the hose of the hydrogen dispenser. , the connection to the hydrogen filling port RC1 from above facilitates the connection work. In addition, since the hydrogen filling port RC1 is housed in the dustproof and waterproof protective case PCS, when the fuel cell vehicle 1 is running, dust, dirt, and dust scattered from the front wheels FW, the rear front wheels RW1, and the rear rear wheels RW2 are prevented. It is possible to prevent foreign substances such as water from adhering to the hydrogen filling port RC1.

(protection member)
As shown in FIG. 5A, a spare tire 9 is fixed to the side member 2. As shown in FIG. The spare tire 9 is arranged so that its outer end in the vehicle width direction is located outside the outer ends in the vehicle width direction of the hydrogen tank TNK and the secondary battery BAT.

Therefore, the spare tire 9 comes into contact with an obstacle from the outside in the vehicle width direction before the hydrogen tank TNK and the secondary battery BAT, so it functions as a protective member that protects the hydrogen tank TNK and the secondary battery BAT. do. As a result, the hydrogen tank TNK and the secondary battery BAT are protected by the spare tire 9 against obstacles from outside in the vehicle width direction. Moreover, since the spare tire 9 functions as a protective member, it is possible to protect the hydrogen tank TNK and the secondary battery BAT without the need to provide a separate protective member.

(Modified example of protective member)
As shown in FIG. 5B, the protective member may be a support member 10 fixed to the side member 2 and supporting at least one of the hydrogen tank TNK and the secondary battery BAT. In this modification, the support member 10 supports the hydrogen tank TNK and the secondary battery BAT. The support member 10 includes a fixed portion 10a, one end of which is fixed to the side member 2 and extends in the vehicle width direction, and a support portion 10b, which is connected to the fixed portion 10a and extends in the front-rear direction, supporting the hydrogen tank TNK and the secondary battery BAT. , provided. The other end of the support portion 10b extends outward in the vehicle width direction from the outer end portions of the hydrogen tank TNK and the secondary battery BAT in the vehicle width direction.

Therefore, the support portion 10b of the support member 10 comes into contact with an obstacle from the outside in the vehicle width direction before the hydrogen tank TNK and the secondary battery BAT. It functions as a protective member that protects the battery BAT. As a result, the hydrogen tank TNK and the secondary battery BAT are protected by the support member 10 against obstacles from outside in the vehicle width direction. In addition, since the supporting member 10 functions as a protective member, it is possible to protect the hydrogen tank TNK and the secondary battery BAT without providing a separate protective member.

(Arrangement of multiple hydrogen tanks and multiple secondary batteries)
As shown in FIG. 6, the center of gravity Gh of the two hydrogen tanks TNK is positioned between the pair of left and right side members 2 in the vehicle width direction. In this embodiment, the fuel cell vehicle 1 has a total of two hydrogen tanks TNK, one on each side, but may have three or more hydrogen tanks TNK. Also in this case, the three or more hydrogen tanks TNK are arranged such that the centers of gravity of the three or more hydrogen tanks TNK are located between the pair of left and right side members 2 in the vehicle width direction.

As a result, uneven weight distribution of the hydrogen tank TNK in the fuel cell vehicle 1 to the left and right can be suppressed.

The center of gravity Ge of the two secondary batteries BAT is positioned between the pair of left and right side members 2 in the vehicle width direction. In this embodiment, the fuel cell vehicle 1 has a total of two secondary batteries BAT, one on each side, but may have three or more secondary batteries BAT. Also in this case, the three or more secondary batteries BAT are arranged such that the centers of gravity of the three or more secondary batteries BAT are located between the pair of left and right side members 2 in the vehicle width direction.

As a result, it is possible to prevent the left and right weight distribution of the secondary battery BAT in the fuel cell vehicle 1 from becoming uneven.

(Modified example of arrangement of charging port)
As shown in FIG. 7 , charging port RC2 may be provided on the front surface of fuel cell vehicle 1 .

In this case, the hydrogen filling port RC1 is arranged between the passenger compartment 4 and the loading platform 5 in the front-rear direction, and the charging port RC2 is arranged in front of the fuel cell vehicle 1. The port RC1 and the charging port RC2 can be spaced apart with the passenger compartment 4 interposed therebetween in the front-rear direction. As a result, even when hydrogen leaks from the hydrogen filling port RC1, it is possible to further prevent the hydrogen leaked from the hydrogen filling port RC1 from contacting the charging port RC2. It is possible to further prevent fire from coming into contact with the mouth RC2.

The fuel cell vehicle 1 of this embodiment has a cab-over type vehicle structure in which a cabin 4 for a driver to board is provided in the front part of the fuel cell vehicle 1. In order to maintain and inspect various equipment including the fuel cell FC, the passenger compartment 4 can rotate forward with the front lower end as a fulcrum.

At this time, it is preferable that the charging port RC<b>2 is provided below the passenger compartment 4 .

Thereby, the charging port RC2 and the charging port connection line Le4 can be arranged so as not to interfere with each other even if the cabin 4 rotates for maintenance and inspection of various equipment.

[Second embodiment]
Next, a fuel cell vehicle 1A according to a second embodiment of the invention will be described with reference to FIG. In the following description, the same components as those of the fuel cell vehicle 1 of the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted or simplified. In the fuel cell vehicle 1 of the first embodiment, a total of two hydrogen tanks TNK are provided, one each on the outside of the pair of left and right side members 2 in the vehicle width direction. , one hydrogen tank TNK is provided between a pair of left and right side members 2 in the vehicle width direction. In addition, in the fuel cell vehicle 1 of the first embodiment, two secondary batteries BAT are provided, one each on the outside of the pair of left and right side members 2 in the vehicle width direction. In the vehicle 1A, one secondary battery BAT is provided behind the hydrogen tank TNK in the longitudinal direction and between the pair of left and right side members 2 in the vehicle width direction. Differences between the fuel cell vehicle 1 of the first embodiment and the fuel cell vehicle 1A of the second embodiment will be described in detail below.

As shown in FIG. 8 , the housing 12 of the secondary battery BAT is longer than the hydrogen tank TNK in the vehicle width direction, and connects the pair of left and right side members 2 . The in-housing cross member 13 of the secondary battery BAT is arranged at a position overlapping the side member 2 in a side view.

Therefore, since the housing 12 of the secondary battery BAT is longer in the vehicle width direction than the hydrogen tank TNK, the hydrogen tank TNK is protected from obstacles from the outside in the vehicle width direction by the housing 12 of the secondary battery BAT. protected against As a result, it is possible to prevent electric leakage or the like from occurring due to damage to the storage module 11, and further to prevent hydrogen leakage or the like from occurring due to damage to the hydrogen tank TNK. Further, when the fuel cell vehicle 1 has a side collision, a load path (load path) is formed through which the collision load is transmitted through the in-housing cross member 13 to the side member 2 on the side opposite to the side receiving the collision load. Therefore, the in-housing cross member 13 has the same function as the cross member 3 of the vehicle body B, suppresses deformation of the side member 2, and suppresses deformation of the housing 12 of the secondary battery BAT. As a result, deformation of the side member 2 is suppressed, and deformation of the housing 12 of the secondary battery BAT is suppressed, so that it is possible to prevent electric leakage or the like from occurring due to damage to the power storage module 11 .

The junction box JB is fixed to the housing 12 of the secondary battery BAT. The junction box JB is arranged to protrude outward in the vehicle width direction from the housing 12 in the vehicle width direction.

Since the junction box JB protrudes further outward in the vehicle width direction than the housing 12 in the vehicle width direction, in the event of a side collision of the fuel cell vehicle 1, the junction box JB comes into contact with the colliding object before the housing 12. do. As a result, the junction box JB can receive the collision load when the fuel cell vehicle 1 has a side collision, and damage to the power storage module 11 of the secondary battery BAT can be suppressed.

Further, when the junction box JB comes into contact with a collision object and is damaged, the circuit inside the junction box JB is cut off, and the circuit connecting the secondary battery BAT and the secondary battery connecting line portion Le3 is cut off. As a result, it is possible to prevent high-voltage power from being discharged from the secondary battery BAT, so that the electrical safety of the fuel cell vehicle 1 is improved.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such embodiments. It is obvious that a person skilled in the art can conceive of various modifications or modifications within the scope described in the claims, and these also belong to the technical scope of the present invention. Understood. Moreover, each component in the above embodiments may be combined arbitrarily without departing from the spirit of the invention.

For example, in the above-described embodiment, both the hydrogen filling port RC1 and the charging port RC2 are provided on the left side surface of the vehicle body B, but the hydrogen filling port RC1 is located on one side of the vehicle body B in the vehicle width direction. , and the charging port RC2 may be arranged on the side surface of the vehicle body B on the other side in the vehicle width direction. With this arrangement, the hydrogen filling port RC1 and the charging port RC2 can be spaced apart not only in the longitudinal direction but also in the vehicle width direction. Hydrogen leaking from the port RC1 can be further prevented from coming into contact with the charging port RC2. This can further prevent hydrogen leaking from the hydrogen filling port RC1 from coming into contact with the charging port RC2 and igniting.

This specification describes at least the following matters. In addition, in the parenthesis, the components corresponding to the above-described embodiment are shown as an example, but the present invention is not limited to this.

(1) A vehicle body (vehicle body B) having a frame structure including a pair of left and right side members (side members 2) extending in the front-rear direction,
A passenger cabin (passenger cabin 4) which is arranged in the front part of the vehicle and has seats (seats 6) for passengers to sit inside (passenger cabin 4);
A loading platform (loading platform 5) provided behind the passenger compartment,
a fuel cell (fuel cell FC);
A hydrogen tank (hydrogen tank TNK) arranged below the loading platform and filled with hydrogen;
a hydrogen filling port (hydrogen filling port RC1) for receiving hydrogen filled in the hydrogen tank from the outside;
a hydrogen pipe (hydrogen pipe Lh) connecting the fuel cell, the hydrogen tank, and the hydrogen filling port;
a secondary battery (secondary battery BAT);
a driving motor (driving motor MOT);
a control unit (control unit PCU) that controls the input/output power of the drive motor;
a charging port (charging port RC2) for receiving power charged to the secondary battery from the outside;
A fuel cell vehicle (fuel cell vehicle 1) equipped with a power line (power line Le) that electrically connects the fuel cell, the secondary battery, the drive motor, the control unit, and the charging port There is
The hydrogen filling port and the charging port are spaced apart in the front-rear direction,
The fuel cell vehicle, wherein the hydrogen filling port is arranged rearward of the passenger compartment and forward of the hydrogen tank in a front-rear direction.

According to (1), since the hydrogen filling port and the charging port are spaced apart in the front-rear direction, even if hydrogen leaks from the hydrogen filling port, the leaked hydrogen from the hydrogen filling port is charged. Prevent contact with the mouth. As a result, hydrogen leaking from the hydrogen filling port can be prevented from coming into contact with the charging port and igniting. In addition, since the hydrogen filling port is arranged behind the passenger compartment and in front of the hydrogen tank in the longitudinal direction, even if hydrogen leaks from the hydrogen filling port, the hydrogen leaking from the hydrogen filling port is , and is discharged into the atmosphere above the fuel cell vehicle through the space between the passenger compartment and the luggage compartment. As a result, hydrogen leaking from the hydrogen filling port can be prevented from accumulating below the passenger compartment or below the loading platform. In this way, the fuel cell vehicle has improved safety against hydrogen leakage.

(2) The fuel cell vehicle according to (1),
The fuel cell vehicle, wherein the hydrogen filling port is arranged between an upper end portion and a lower end portion of the hydrogen tank in the vertical direction.

According to (2), since the hydrogen filling port is arranged between the upper end and the lower end of the hydrogen tank in the vertical direction, the hydrogen tank prevents the hydrogen filling port from being obstructed from the vertical direction. Thus, it is possible to prevent hydrogen leakage due to damage to the hydrogen filling port.

(3) The fuel cell vehicle according to (1) or (2),
The fuel cell vehicle, wherein the charging port is arranged between an upper end portion and a lower end portion of the hydrogen tank in the vertical direction.

According to (3), since the charging port is arranged between the upper end and the lower end of the hydrogen tank in the vertical direction, the charging port is protected against obstacles from the vertical direction by the hydrogen tank. It is protected, and it is possible to prevent the occurrence of electric leakage due to damage to the charging port.

(4) The fuel cell vehicle according to any one of (1) to (3),
The hydrogen filling port is
It is arranged above the upper ends of the wheels (front wheel FW, rear front wheel RW1, rear rear wheel RW2),
A fuel cell vehicle arranged to face obliquely downward toward the outside in the vehicle width direction when viewed from the front-rear direction.

According to (4), since the hydrogen filling port is located above the upper end of the wheel, foreign matter such as dust, mud, water, etc., scattered from the wheel during running of the fuel cell vehicle may enter the hydrogen filling port. Adhesion can be suppressed. Also, since the hydrogen filling port is located above the wheels, it is located at a high position, but when viewed from the front-rear direction, it is located so as to face obliquely downward toward the outside in the vehicle width direction. Therefore, even a small worker can easily connect the filling nozzle attached to the tip of the hose of the hydrogen dispenser to the hydrogen filling port.

(5) The fuel cell vehicle according to any one of (1) to (3),
The hydrogen filling port is
It is arranged below the upper ends of the wheels (front wheel FW, rear front wheel RW1, rear rear wheel RW2),
When viewed from the front and rear direction, it is arranged so as to face diagonally upward toward the outside in the vehicle width direction,
A fuel cell vehicle housed in a protective case (protective case PCS).

According to (5), since the hydrogen filling port is arranged below the upper end of the wheel, it is arranged at a low position. Furthermore, since the hydrogen filling port is arranged so as to face obliquely upward toward the outside in the vehicle width direction when viewed from the front-rear direction, the operator must move the filling nozzle attached to the tip of the hose of the hydrogen dispenser upward. It will be connected to the hydrogen filling port from the bottom, making the connection work easier. In addition, since the hydrogen filling port is housed in the protective case, it is possible to prevent foreign matter such as dust, mud, and water scattered from the wheels from adhering to the hydrogen filling port during running of the fuel cell vehicle.

(6) The fuel cell vehicle according to any one of (1) to (5),
Further comprising a protective member (spare tire 9, support member 10),
The fuel cell vehicle, wherein the protection member is arranged such that a vehicle width direction outer end portion of the protective member is positioned outside a vehicle width direction outer end portion of at least one of the hydrogen tank and the secondary battery.

According to (6), the protective member is arranged so that the outer end in the vehicle width direction is positioned outside the outer end in the vehicle width direction of at least one of the hydrogen tank and the secondary battery. , contact with an obstacle from the outside in the vehicle width direction before at least one of the hydrogen tank and the secondary battery. Thereby, the hydrogen tank and the secondary battery are protected from obstacles from the outside in the vehicle width direction by the protective member.

(7) The fuel cell vehicle according to (6),
The fuel cell vehicle, wherein the protective member is a spare tire (spare tire 9) fixed to the side member.

According to (7), since the protective member is a spare tire fixed to the side member, at least one of the hydrogen tank and the secondary battery can be protected without the need to provide a separate protective member.

(8) The fuel cell vehicle according to (6),
The fuel cell vehicle, wherein the protection member is a support member (support member 10) that is fixed to the side member and supports at least one of the hydrogen tank and the secondary battery.

According to (8), the protection member is a support member that is fixed to the side member and supports at least one of the hydrogen tank and the secondary battery. can protect at least one of

(9) The fuel cell vehicle according to any one of (1) to (8),
The secondary battery includes a power storage module (power storage module 11) and a housing (housing 12) that houses the power storage module,
The housing has a higher strength than the hydrogen tank,
In the fuel cell vehicle, the secondary battery is arranged such that a vehicle width direction outside end of the housing is located outside a vehicle width direction outside end of the hydrogen tank.

According to (9), the power storage module is protected by the housing, and the hydrogen tank is protected against obstacles from the outside in the vehicle width direction by the housing of the secondary battery, which has higher strength than the hydrogen tank. Since it is protected, it is possible to prevent electric leakage and the like from occurring due to damage to the power storage module, and further to prevent hydrogen leakage and the like from occurring due to damage to the hydrogen tank.

(10) The fuel cell vehicle according to (9),
The vehicle body has a cross member (cross member 3) extending in the vehicle width direction between the pair of left and right side members and connecting the pair of left and right side members,
The secondary battery includes an in-housing cross member (in-housing cross member 13) that extends in the vehicle width direction inside the housing and connects the vehicle width direction inner surface and the vehicle width direction outer surface of the housing. have
The secondary battery is
arranged outside the pair of left and right side members in the vehicle width direction,
A fuel cell vehicle, wherein the in-housing cross member is arranged so as to overlap with the cross member of the vehicle body in a side view.

According to (10), the secondary battery is arranged outside the pair of left and right side members in the vehicle width direction, and is arranged so that the cross member in the housing overlaps the cross member of the vehicle body when viewed from the side. Therefore, in the event of a side collision of the fuel cell vehicle, the housing of the secondary battery comes into contact with the colliding object before the hydrogen tank. A load path (load path) is formed through which the collision load is transmitted inward in the vehicle width direction through the cross member in the housing to the cross member of the vehicle body. Inward deformation in the width direction is suppressed. As a result, the deformation of the housing of the secondary battery is suppressed, so that it is possible to prevent the occurrence of electric leakage due to damage to the power storage module. Since it is transmitted to the cross member of the vehicle body extending in the direction, the deformation of the vehicle body is suppressed.

(11) The fuel cell vehicle according to (10),
further comprising a junction box (junction box JB) that relays power supplied from the power line to the power storage module;
The junction box is fixed to the housing, projects outward in the vehicle width direction from the housing in the vehicle width direction, and is arranged at a position overlapping the cross member in the housing and the cross member of the vehicle body in a side view. A fuel cell vehicle.

According to (11), since the junction box protrudes further outward in the vehicle width direction than the housing in the vehicle width direction, in the event of a side collision of the fuel cell vehicle, the junction box will reach the collision object before the housing. come into contact with As a result, the junction box can receive the collision load when the fuel cell vehicle has a side collision, and damage to the power storage module of the secondary battery can be suppressed.
Furthermore, if the junction box comes into contact with a collision object and is damaged, the circuit inside the junction box is cut off, and the circuit connecting the secondary battery and the power line is cut off. As a result, it is possible to prevent high-voltage power from being discharged from the secondary battery, thereby improving the electrical safety of the fuel cell vehicle.

(12) The fuel cell vehicle according to any one of (1) to (11),
The hydrogen tank is arranged outside the pair of left and right side members in the vehicle width direction,
At least one of the hydrogen filling port and the charging port is arranged inside in the vehicle width direction of an outer end portion of the hydrogen tank in the vehicle width direction.

According to (12), the hydrogen tank is disposed outside the pair of left and right side members in the vehicle width direction, and at least one of the hydrogen filling port and the charging port is positioned from the outer end of the hydrogen tank in the vehicle width direction. At least one of the hydrogen filling port and the charging port is protected from obstacles from the outside in the vehicle width direction by the hydrogen tank. This can prevent damage to at least one of the hydrogen filling port and the charging port.

(13) The fuel cell vehicle according to any one of (1) to (12),
The secondary battery is arranged outside the pair of left and right side members in the vehicle width direction,
At least one of the hydrogen filling port and the charging port is arranged on the vehicle width direction inner side of the vehicle width direction outer end portion of the secondary battery.

According to (13), the secondary battery is arranged outside the pair of left and right side members in the vehicle width direction. At least one of the hydrogen filling port and the charging port is protected from obstacles from the outside in the vehicle width direction by the secondary battery. This can prevent damage to at least one of the hydrogen filling port and the charging port.

(14) The fuel cell vehicle according to any one of (1) to (13),
The fuel cell vehicle is equipped with a plurality of the hydrogen tanks,
Each of the plurality of hydrogen tanks is arranged outside the pair of left and right side members in the vehicle width direction,
The fuel cell vehicle, wherein the center of gravity (center of gravity Gh) of the plurality of hydrogen tanks is located between the pair of left and right side members in the vehicle width direction.

According to (14), the centers of gravity of the plurality of hydrogen tanks are located between the pair of left and right side members in the vehicle width direction, so that uneven weight distribution of the hydrogen tanks on the left and right in the fuel cell vehicle can be avoided. This makes it easy to equalize the left and right weight distribution of the fuel cell vehicle.

(15) The fuel cell vehicle according to any one of (1) to (14),
The fuel cell vehicle is equipped with a plurality of the secondary batteries,
each of the plurality of secondary batteries is arranged outside the pair of left and right side members in the vehicle width direction,
The fuel cell vehicle, wherein the center of gravity (center of gravity Ge) of the plurality of secondary batteries is positioned between the pair of left and right side members in the vehicle width direction.

According to (15), the centers of gravity of the plurality of secondary batteries are located between the pair of left and right side members in the vehicle width direction, so the left and right weight distribution of the secondary batteries in the fuel cell vehicle becomes uneven. This makes it easier to equalize the left and right weight distribution of the fuel cell vehicle.

(16) The fuel cell vehicle according to any one of (1) to (15),
The hydrogen pipe includes a main pipe portion (main pipe portion Lh1) extending in the front-rear direction and having a front end connected to the fuel cell (main pipe portion Lh1), and a hydrogen tank connection pipe portion (main pipe portion Lh1) extending from the main pipe portion and connected to the hydrogen tank ( a hydrogen tank connecting pipe portion Lh2), and a filling port connecting pipe portion (filling port connecting pipe portion Lh3) extending from the main pipe portion or the hydrogen tank connecting pipe portion and connected to the hydrogen filling port,
In the fuel cell vehicle, the main pipe portion extends in the front-rear direction between the pair of left and right side members in the vehicle width direction, and is arranged at a position not overlapping the side members in the vertical direction.

According to (16), the main pipe portion extends in the longitudinal direction between the pair of left and right side members in the vehicle width direction. It is protected by a pair of left and right side members. Furthermore, since the main pipe portion is arranged at a position that does not overlap with the side member in the vertical direction, even if the side member is deformed inward in the vehicle width direction due to a side collision of the fuel cell vehicle, the main pipe portion can be suppressed from contacting and damaging the side member deformed inward in the vehicle width direction, thereby reducing the risk of hydrogen leaking from the main pipe.

(17) The fuel cell vehicle according to any one of (1) to (16),
The power line includes an electric motor connection line portion (electric motor connection line portion Le1) that connects the driving electric motor and the control unit and extends in the front-rear direction, and a fuel cell that connects the fuel cell and the control unit and extends in the front-rear direction. A connection wire portion (fuel cell connection wire portion Le2), a secondary battery connection wire portion (secondary battery connection wire portion Le3) that connects the secondary battery and the control unit, the charging port and the control unit and a charging port connection line (charging port connection line Le4) extending in the vehicle width direction,
The fuel cell connection line portion and the electric motor connection line portion extend in the front-rear direction between the pair of left and right side members in the vehicle width direction, and are arranged at positions not overlapping the side members in the vertical direction. vehicle.

According to (17), the electric motor connection line portion and the fuel cell connection line portion extend in the longitudinal direction between the pair of left and right side members in the vehicle width direction. Also, the electric motor connection wire portion and the fuel cell connection wire portion are protected by a pair of left and right side members. Furthermore, since the electric motor connection wire portion and the fuel cell connection wire portion are arranged at positions that do not overlap with the side members in the vertical direction, even if the side member is deformed inward in the vehicle width direction due to a side collision of the fuel cell vehicle, Even if there is, the electric motor connection wire portion and the fuel cell connection wire portion can be prevented from being damaged by coming into contact with the side member deformed inward in the vehicle width direction, and electric leakage occurs at the electric motor connection wire portion and the fuel cell connection wire portion. Reduce risk.

(18) The fuel cell vehicle according to (17),
The secondary battery is arranged outside the pair of left and right side members in the vehicle width direction,
In the fuel cell vehicle, the secondary battery connecting wire portion extends outward in the vehicle width direction from the control unit in a front view, and is arranged at a position not overlapping the side member in the vertical direction.

According to (18), the secondary battery is arranged outside the pair of left and right side members in the vehicle width direction. , and is arranged at a position that does not overlap with the side member in the vertical direction. It is possible to suppress damage due to contact with the side member deformed inward in the vehicle width direction, and reduce the risk of electric leakage occurring in the secondary battery connecting wire portion.

(19) The fuel cell vehicle according to any one of (1) to (18),
The hydrogen tank is arranged below the loading platform,
A fuel cell vehicle, wherein the secondary battery and the charging port are arranged behind the hydrogen tank.

According to (19), the hydrogen filling port is arranged between the passenger compartment and the cargo bed in the longitudinal direction, and the secondary battery and the charging port are located behind the hydrogen tank located below the cargo bed. Because of this arrangement, the hydrogen filling port, the secondary battery and the charging port are spaced apart in the front-rear direction with the hydrogen tank interposed therebetween. Therefore, even if hydrogen leaks from the hydrogen filling port, it is possible to further prevent the hydrogen leaking from the hydrogen filling port from coming into contact with the secondary battery and the charging port. This makes it possible to further prevent hydrogen leaking from the hydrogen filling port from coming into contact with the secondary battery and the charging port and igniting.

(20) The fuel cell vehicle according to any one of (1) to (19),
The hydrogen filling port is arranged on one side in the vehicle width direction of the vehicle body,
The fuel cell vehicle, wherein the charging port is arranged on the other side of the vehicle body in the vehicle width direction.

According to (20), the hydrogen filling port is arranged on one side in the vehicle width direction of the vehicle body, and the charging port is arranged on the other side in the vehicle width direction of the vehicle body. The filling port and the charging port can be spaced apart not only in the longitudinal direction but also in the vehicle width direction. As a result, even if hydrogen leaks from the hydrogen filling port, it is possible to further prevent the hydrogen leaking from the hydrogen filling port from contacting the charging port. It is possible to prevent more fire from occurring.

(21) The fuel cell vehicle according to any one of (1) to (18),
A fuel cell vehicle, wherein the charging port is provided on a front surface of the fuel cell vehicle.

According to (21), the hydrogen filling port is arranged between the passenger compartment and the luggage compartment in the front-rear direction, and the charging port is arranged in front of the fuel cell vehicle. and the charging port can be spaced apart from each other with the passenger compartment interposed therebetween in the front-rear direction. As a result, even if hydrogen leaks from the hydrogen filling port, it is possible to further prevent the hydrogen leaking from the hydrogen filling port from contacting the charging port. It is possible to prevent more fire from occurring.

(22) The fuel cell vehicle according to (21),
The fuel cell vehicle, wherein the charging port is provided below the passenger compartment.

According to (22), since the charging port is provided below the passenger compartment, the fuel cell vehicle has a cab-over type vehicle structure, and the passenger compartment can rotate forward with the front lower end as a fulcrum. Even in this case, the charging port and the charging port connection line can be arranged so as not to interfere with the rotation of the passenger compartment.

(23) The fuel cell vehicle according to (9),
The hydrogen tank and the secondary battery are arranged between the pair of left and right side members in the vehicle width direction,
The secondary battery includes an in-housing cross member (in-housing cross member 13) that extends in the vehicle width direction inside the housing and connects the left side surface in the vehicle width direction and the right side surface in the vehicle width direction of the housing. have
The housing has a length in the vehicle width direction longer than that of the hydrogen tank, and connects the pair of left and right side members,
The fuel cell vehicle, wherein the in-casing cross member is arranged at a position overlapping with the side member in a side view.

According to (23), the secondary battery case is longer in the vehicle width direction than the hydrogen tank, so the hydrogen tank is protected from obstacles from the outside in the vehicle width direction by the case of the secondary battery. protected against. As a result, it is possible to prevent the electrical storage module from being damaged and cause an electric leak, etc., and furthermore, to prevent the hydrogen tank from being damaged and cause a hydrogen leak, etc., to occur. Also, in the event of a side collision of a fuel cell vehicle, a load path (load path) is formed through which the collision load is transmitted through the cross member in the housing to the side member on the side opposite to the side that received the collision load. , the cross member in the housing has the same function as the cross member of the vehicle body, suppresses the deformation of the side member, and suppresses the deformation of the housing of the secondary battery. As a result, deformation of the side member is suppressed, and deformation of the housing of the secondary battery is also suppressed, so that it is possible to prevent electric leakage or the like from occurring due to damage to the power storage module.

(24) The fuel cell vehicle according to (23),
further comprising a junction box (junction box JB) that relays power supplied from the power line to the power storage module;
The fuel cell vehicle, wherein the junction box is fixed to the housing and arranged to protrude outward in the vehicle width direction from the housing in the vehicle width direction.

According to (24), the junction box protrudes further outward in the vehicle width direction than the housing in the vehicle width direction. come into contact with As a result, the junction box can receive the collision load when the fuel cell vehicle has a side collision, and damage to the power storage module of the secondary battery can be suppressed.
Furthermore, when the junction box is damaged due to contact with a collision object, the circuit inside the junction box is cut off, and the circuit connecting the secondary battery and the secondary battery connection line is cut off. As a result, it is possible to prevent high-voltage power from being discharged from the secondary battery, thereby improving electrical safety of the fuel cell vehicle 1 .

1 fuel cell vehicle 2 side member 3 cross member 4 passenger compartment 5 loading platform 6 seat 9 spare tire (protective member)
10 support member (protection member)
11 Power storage module 12 Housing 13 Cross member B in housing Body FC Fuel cell TNK Hydrogen tank BAT Secondary battery MOT Driving motor PCU Control unit JB Junction box RC1 Hydrogen filling port RC2 Charging port Lh Hydrogen pipe Lh1 Main pipe Lh2 Hydrogen tank Connection pipe portion Lh3 Filling port connection pipe portion Le Power line Le1 Electric motor connection wire portion Le2 Fuel cell connection wire portion Le3 Secondary battery connection wire portion Le4 Charging port connection wire FW Front wheel (wheel)
RW1 Rear front wheel (wheel)
RW2 Rear rear wheel (wheel)
PCS Protective case Gh Center of gravity Ge Center of gravity

Claims (24)

A vehicle body having a frame structure including a pair of left and right side members extending in the front-rear direction,
A passenger room located in the front of the vehicle with seats inside for the passengers to sit on,
and a loading platform provided behind the passenger compartment,
a fuel cell;
a hydrogen tank placed below the loading platform and filled with hydrogen;
a hydrogen filling port for receiving hydrogen to be filled into the hydrogen tank from the outside;
a hydrogen pipe connecting the fuel cell, the hydrogen tank, and the hydrogen filling port;
a secondary battery;
a drive motor;
a control unit that controls the input/output power of the drive motor;
a charging port for receiving power to charge the secondary battery from the outside;
A fuel cell vehicle equipped with a power line that electrically connects the fuel cell, the secondary battery, the drive motor, the control unit, and the charging port,
The hydrogen filling port and the charging port are spaced apart in the front-rear direction,
The fuel cell vehicle, wherein the hydrogen filling port is arranged rearward of the passenger compartment and forward of the hydrogen tank in a front-rear direction. The fuel cell vehicle according to claim 1,
The fuel cell vehicle, wherein the hydrogen filling port is arranged between an upper end portion and a lower end portion of the hydrogen tank in the vertical direction. The fuel cell vehicle according to claim 1 or 2,
The fuel cell vehicle, wherein the charging port is arranged between an upper end portion and a lower end portion of the hydrogen tank in the vertical direction. The fuel cell vehicle according to any one of claims 1 to 3,
The hydrogen filling port is
It is located above the top of the wheel,
A fuel cell vehicle arranged to face obliquely downward toward the outside in the vehicle width direction when viewed from the front-rear direction. The fuel cell vehicle according to any one of claims 1 to 3,
The hydrogen filling port is
Located below the top of the wheel,
When viewed from the front and rear direction, it is arranged so as to face diagonally upward toward the outside in the vehicle width direction,
A fuel cell vehicle housed in a protective case. The fuel cell vehicle according to any one of claims 1 to 5,
further comprising a protective member,
The fuel cell vehicle, wherein the protective member is arranged such that a vehicle width direction outer end portion of the protective member is positioned outside a vehicle width direction outer end portion of at least one of the hydrogen tank and the secondary battery. A fuel cell vehicle according to claim 6,
The fuel cell vehicle, wherein the protective member is a spare tire fixed to the side member. A fuel cell vehicle according to claim 6,
The fuel cell vehicle, wherein the protection member is a support member that is fixed to the side member and supports at least one of the hydrogen tank and the secondary battery. The fuel cell vehicle according to any one of claims 1 to 8,
The secondary battery includes a power storage module and a housing that accommodates the power storage module,
The housing has a higher strength than the hydrogen tank,
In the fuel cell vehicle, the secondary battery is arranged such that a vehicle width direction outside end of the housing is located outside a vehicle width direction outside end of the hydrogen tank. A fuel cell vehicle according to claim 9,
the vehicle body includes a cross member extending in the vehicle width direction between the pair of left and right side members and connecting the pair of left and right side members;
The secondary battery has an in-housing cross member extending in the vehicle width direction inside the housing and connecting the vehicle width direction inner surface and the vehicle width direction outer surface of the housing,
The secondary battery is
arranged outside the pair of left and right side members in the vehicle width direction,
A fuel cell vehicle, wherein the in-housing cross member is positioned so as to overlap the cross member of the vehicle body in a side view. A fuel cell vehicle according to claim 10,
further comprising a junction box that relays power supplied from the power line to the power storage module;
The junction box is fixed to the housing, projects outward in the vehicle width direction from the housing in the vehicle width direction, and is arranged at a position overlapping the cross member in the housing and the cross member of the vehicle body in a side view. A fuel cell vehicle. The fuel cell vehicle according to any one of claims 1 to 11,
The hydrogen tank is arranged outside the pair of left and right side members in the vehicle width direction,
At least one of the hydrogen filling port and the charging port is arranged inside in the vehicle width direction of an outer end portion of the hydrogen tank in the vehicle width direction. The fuel cell vehicle according to any one of claims 1 to 12,
The secondary battery is arranged outside the pair of left and right side members in the vehicle width direction,
At least one of the hydrogen filling port and the charging port is arranged on the vehicle width direction inner side of the vehicle width direction outer end portion of the secondary battery. The fuel cell vehicle according to any one of claims 1 to 13,
The fuel cell vehicle is equipped with a plurality of the hydrogen tanks,
Each of the plurality of hydrogen tanks is arranged outside the pair of left and right side members in the vehicle width direction,
The fuel cell vehicle, wherein the centers of gravity of the plurality of hydrogen tanks are located between the pair of left and right side members in the vehicle width direction. The fuel cell vehicle according to any one of claims 1 to 14,
The fuel cell vehicle is equipped with a plurality of the secondary batteries,
each of the plurality of secondary batteries is arranged outside the pair of left and right side members in the vehicle width direction,
The fuel cell vehicle, wherein the centers of gravity of the plurality of secondary batteries are located between the pair of left and right side members in the vehicle width direction. The fuel cell vehicle according to any one of claims 1 to 15,
The hydrogen pipe includes a main pipe portion extending in the front-rear direction and having a front end connected to the fuel cell, a hydrogen tank connection pipe portion extending from the main pipe portion and connected to the hydrogen tank, the main pipe portion, or a filling port connection pipe portion extending from the hydrogen tank connection pipe portion and connected to the hydrogen filling port;
In the fuel cell vehicle, the main pipe portion extends in the front-rear direction between the pair of left and right side members in the vehicle width direction, and is arranged at a position not overlapping the side members in the vertical direction. The fuel cell vehicle according to any one of claims 1 to 16,
The power line includes an electric motor connection line portion that connects the driving electric motor and the control unit and extends in the front-rear direction; a fuel cell connection line portion that connects the fuel cell and the control unit and extends in the front-rear direction; a secondary battery connection line portion that connects the secondary battery and the control unit; and a charging port connection line that connects the charging port and the control unit and extends in the vehicle width direction,
The fuel cell connection line portion and the electric motor connection line portion extend in the front-rear direction between the pair of left and right side members in the vehicle width direction, and are arranged at positions not overlapping the side members in the vertical direction. vehicle. A fuel cell vehicle according to claim 17,
The secondary battery is arranged outside the pair of left and right side members in the vehicle width direction,
In the fuel cell vehicle, the secondary battery connecting wire portion extends outward in the vehicle width direction from the control unit in a front view, and is arranged at a position not overlapping the side member in the vertical direction. The fuel cell vehicle according to any one of claims 1 to 18,
The hydrogen tank is arranged below the loading platform,
A fuel cell vehicle, wherein the secondary battery and the charging port are arranged behind the hydrogen tank. The fuel cell vehicle according to any one of claims 1 to 19,
The hydrogen filling port is arranged on one side in the vehicle width direction of the vehicle body,
The fuel cell vehicle, wherein the charging port is arranged on the side surface of the vehicle body on the other side in the vehicle width direction. The fuel cell vehicle according to any one of claims 1 to 18,
A fuel cell vehicle, wherein the charging port is provided on a front surface of the fuel cell vehicle. 22. A fuel cell vehicle according to claim 21,
The fuel cell vehicle, wherein the charging port is provided below the passenger compartment. A fuel cell vehicle according to claim 9,
The hydrogen tank and the secondary battery are arranged between the pair of left and right side members in the vehicle width direction,
The secondary battery has an in-housing cross member that extends in the vehicle width direction inside the housing and connects the left side surface in the vehicle width direction and the right side surface in the vehicle width direction of the housing,
The housing has a length in the vehicle width direction longer than that of the hydrogen tank, and connects the pair of left and right side members,
The fuel cell vehicle, wherein the in-casing cross member is arranged at a position overlapping with the side member in a side view. 24. A fuel cell vehicle according to claim 23,
further comprising a junction box that relays power supplied from the power line to the power storage module;
The fuel cell vehicle, wherein the junction box is fixed to the housing and arranged to protrude outward in the vehicle width direction from the housing in the vehicle width direction.

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