JP4975707B2 - Fuel cell vehicle - Google Patents

Description

  The present invention relates to a fuel cell vehicle. Specifically, the present invention relates to a fuel cell vehicle including a hydrogen tank that stores hydrogen gas.

  A fuel cell vehicle that generates power using hydrogen gas as a fuel and travels using the generated power as a power source is equipped with a hydrogen tank that stores hydrogen gas. The cruising distance in such a fuel cell vehicle is related to the amount of hydrogen gas that can be filled in the hydrogen tank. Therefore, the total capacity of the hydrogen tank is preferably as large as possible.

  By the way, in recent years, the place where the hydrogen tank is provided is mainly outside the vehicle. On the other hand, in order to increase the cruising distance of the fuel cell vehicle as described above, that is, to ensure the total capacity of the hydrogen tank as large as possible, it is preferable to use the space inside the vehicle interior as well as outside the vehicle.

  However, when the hydrogen tank is provided in the vehicle interior, a device different from that provided outside the vehicle is required to ensure safety. For example, assume that hydrogen gas leaks from a hydrogen tank. When the hydrogen tank is provided in the vehicle interior, there is a possibility that leaked hydrogen gas may accumulate in the vehicle interior, so that a device for discharging the leaked hydrogen gas to the outside of the vehicle is required.

Thus, for example, Patent Document 1 discloses a hydrogen tank mounting structure in which a hydrogen tank is accommodated in a box-shaped storage box, and a ventilation pipe communicating with the outside of the vehicle is provided in the storage box. By connecting the outside of the vehicle and the inside of the storage box with such a ventilation pipe, even if hydrogen gas leaks from the hydrogen tank, the leaked hydrogen gas can be discharged outside the vehicle without accumulating in the vehicle interior. It becomes possible.
JP 2003-118401 A

  However, the hydrogen tank mounting structure disclosed in Patent Document 1 does not include a mechanism for positively discharging leaked hydrogen gas. For this reason, the leaked hydrogen gas is not discharged outside the vehicle via the ventilation pipe, but stays inside the storage box, and as a result, there is a possibility that the hydrogen gas accumulates in the passenger compartment.

  Therefore, it is conceivable that hydrogen gas in the storage box is actively discharged by providing a ventilation device such as a fan in the storage box. However, in this case, a space for installing the ventilation device is secured in the vehicle interior. Need to do. Therefore, since the capacity of the hydrogen tank cannot be increased, the advantage of providing the above-described hydrogen tank in the vehicle interior is impaired.

  The present invention has been made in consideration of the above-described points, and in a fuel cell vehicle in which a hydrogen tank is provided in the vehicle interior, the fuel cell vehicle that can effectively use the space in the vehicle interior while ensuring its safety. The purpose is to provide.

  A fuel cell vehicle (for example, a fuel cell vehicle 1 described later) of the present invention includes a driving force generator (for example, a fuel cell 20 and a driving motor 10 described later) that generates a driving force using hydrogen gas as fuel, and hydrogen gas. A fuel cell vehicle comprising a hydrogen tank for storing (for example, a hydrogen tank 30 described later) and a tank container (for example, a tank container 40 described later) covering the periphery of the hydrogen tank, wherein the tank container is A stacking unit (for example, a tank to be described later) is loaded on an upper portion of a floor panel (for example, a floor panel 70 described later) that divides the inside and outside of the vehicle in a state in which the hydrogen tank is accommodated. The fuel tank 74) and a tank container lower part (for example, a tank container lower part 42 to be described later) facing the stacking part among the tank containers, respectively, A traveling wind introduction port (for example, a first traveling wind introduction port 781 and a second traveling wind introduction port 422, which will be described later) that communicates the outside of the battery vehicle and the inside of the tank container is provided, and an upper portion (for example, The tank container upper portion 41), which will be described later, is provided with a traveling air discharge port (for example, a ventilation port 412 described later) that communicates the inside of the tank container and the outside of the fuel cell vehicle.

According to the present invention, the hydrogen tank is accommodated in the tank container, and the tank container is further loaded on the floor panel. That is, the total capacity of the hydrogen tank can be increased by providing the hydrogen tank in the vehicle interior.
In addition, a traveling wind introduction port that communicates the outside of the fuel cell vehicle and the inside of the tank container is formed in the loading section of the floor panel and the lower part of the tank container facing the loading section, respectively. A traveling wind discharge port communicating the inside of the tank container and the outside of the fuel cell vehicle was formed in the upper part of the tank container. Thereby, the gas remaining inside the tank container can be discharged from the traveling wind outlet to the outside of the tank container while introducing the traveling wind into the tank container from the traveling wind inlet. Therefore, even when hydrogen gas leaks from the hydrogen tank, the hydrogen gas can be actively discharged out of the vehicle without accumulating the hydrogen gas inside the tank container. Further, according to the present invention, it is not necessary to provide a ventilator such as a fan to ventilate the inside of the tank container, so that the space in the vehicle compartment can be used effectively.

  In this case, the hydrogen tank hermetically seals a high-pressure container (for example, a high-pressure container 31 described later) filled with hydrogen gas and an opening (for example, an opening 32 described later) formed on one end side of the high-pressure container. A lid member (for example, a lid member 33 to be described later), and the lid member is disposed on the outside air flow path from the traveling wind inlet to the traveling wind outlet in the tank container. It is preferred that

  According to this invention, the lid member for the hydrogen tank is disposed on the outside air flow path from the traveling wind inlet to the traveling wind outlet in the tank container. In such a hydrogen tank, the lid member is the portion that is difficult to seal and most likely to leak hydrogen gas. Therefore, even if hydrogen gas leaks from the hydrogen tank, the leaked hydrogen gas can be reliably discharged out of the vehicle. Therefore, the safety of the fuel cell vehicle can be further improved.

  In this case, it is preferable that the tank container has a shape along the outer shape of the hydrogen tank.

  According to this invention, by making the shape of the tank container along the outer shape of the hydrogen tank, the gap between the tank container and the hydrogen tank is made as small as possible, and further, the size of the tank container is made as much as possible. Can be small. In this case, the amount of gas remaining in the tank container can be reduced by making the gap between the tank container and the hydrogen tank as small as possible. Therefore, the safety of the fuel cell vehicle can be further improved.

  In this case, the lower part of the tank container is formed in a convex shape downward, the traveling wind inlet is formed in the vicinity of the lowermost part of the lower part of the tank container, and the loading part is formed in a concave shape upward. The running wind inlet is formed in the vicinity of the lowermost portion of the stacking portion, and the tank container is disposed on the floor panel via a substantially frame-like frame (for example, a subframe 50 described later) that surrounds the stacking portion. It is preferable to be fixed to.

  According to the present invention, a substantially frame-like frame is attached to the lower part of the tank container, and the tank container is fixed to the loading portion via this frame. Thereby, workability | operativity can be improved.

  In this case, it is preferable that a space between the stacking portion and the lower portion of the tank container is sealed by a seal member (for example, a seal member 43 described later) around each traveling wind introduction port.

  According to this invention, the space between the loading portion and the lower portion of the tank container is sealed by the sealing member around each traveling wind inlet. Thereby, hydrogen gas leaking from the hydrogen tank can be prevented from accumulating between the floor panel and the tank container. Therefore, the safety of the fuel cell vehicle can be further improved.

  In this case, it is preferable that the traveling wind inlets of the tank container and the floor panel are inclined toward the front of the vehicle.

  According to the present invention, the traveling wind can be more actively introduced into the tank container by inclining the traveling wind inlets of the tank container and the floor panel toward the front of the vehicle. Therefore, it is possible to further suppress the hydrogen gas from staying in the tank container and further improve the safety of the fuel cell vehicle.

  In this case, the hydrogen tank includes a high-pressure vessel (for example, a high-pressure vessel 31 described later) filled with hydrogen gas, and a safety valve that opens when the temperature exceeds a predetermined temperature and discharges the hydrogen gas in the high-pressure vessel ( For example, in the vicinity of the traveling wind inlet at the lower part of the tank container or the traveling wind inlet of the loading section, a part of the traveling wind inlet is covered and the safety valve is connected to the safety valve. It is preferable to provide a baffle plate (for example, baffle plates 60 and 60A described later) for inducing outside air.

  According to the present invention, a baffle plate that covers a part of the traveling wind inlet and guides outside air to the safety valve of the hydrogen tank is provided in the vicinity of the traveling wind inlet. By providing such a baffle plate, for example, when a fire occurs in a fuel cell vehicle, outside air heated by a flame can be guided to a safety valve, and the safety valve can be quickly opened. Therefore, the safety of the fuel cell vehicle can be further improved.

  In this case, it is preferable that the baffle plate is fixed to an edge portion of the traveling wind inlet of the tank container, and a gap is formed between the baffle plate and the edge portion.

  According to the present invention, the baffle plate is fixed to the edge of the traveling wind inlet of the tank container, and a gap is formed between the baffle plate and the edge. Thereby, outside air can further be introduced through a clearance gap. Therefore, the safety of the fuel cell vehicle can be further improved.

  In this case, the baffle plate is formed with an outside air flow path extending from one end side to the other end side, and a first outside air introduction port for introducing outside air is provided on one end side of the outside air flow path. The other end side of the air flow path is provided with an inclined portion that changes the flow of the outside air flowing through the outdoor air flow path upward, and the baffle plate faces the lower side of the tank container with the inclined portion facing the safety valve side. It is preferable that a second outside air inlet not fixed by the baffle plate is provided on the safety valve side of the running wind inlet at the lower part of the tank container, which is fixed to the edge of the running wind inlet.

According to the present invention, the outside air introduced from the first outside air inlet can be actively flowed into the safety valve by fixing the inclined portion of the baffle plate toward the safety valve side and fixing it to the lower portion of the tank container. Furthermore, the 2nd external air inlet which is not covered with the baffle plate was provided in the safety valve side among the running wind inlets of the tank container lower part. Thereby, it can be made to actively flow into the safety valve side through the second outside air introduction port.
For example, if a fire occurs in a fuel cell vehicle, the baffle plate protects the high-pressure vessel of the hydrogen tank from flame, and the outside air heated by the flame or flame is passed through the first outside air inlet and the second outside air inlet. Therefore, the safety valve can be actively guided to open the safety valve promptly. Therefore, the safety of the fuel cell vehicle 1 can be further improved.

  According to the fuel cell vehicle of the present invention, the total capacity of the hydrogen tank can be increased by providing the hydrogen tank in the passenger compartment. Further, while the traveling wind is introduced into the tank container from the traveling wind introduction port, the gas remaining inside the tank container can be discharged from the traveling wind discharge port to the outside of the vehicle. Therefore, even when hydrogen gas leaks from the hydrogen tank, the hydrogen gas can be actively discharged out of the vehicle without accumulating the hydrogen gas inside the tank container. Further, according to this fuel cell vehicle, it is not necessary to provide a ventilator such as a fan to ventilate the inside of the tank container, so that the space in the vehicle compartment can be used effectively.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing a schematic configuration of a fuel cell vehicle 1 according to the present embodiment.
The fuel cell vehicle 1 includes a drive motor 10 that generates a driving force for rotationally driving wheels, a fuel cell 20 that generates power using reactive gas as fuel, and a hydrogen tank 30 that stores hydrogen gas.

  In the fuel cell vehicle 1, a passenger compartment R in which a driver lives is partitioned by a floor panel 70. That is, in the space covered with the body B of the fuel cell vehicle 1, the upper side of the floor panel 70 is the passenger compartment R, and the lower side of the floor panel 70 is outside the vehicle. In the fuel cell vehicle 1 in which the inside and the outside are partitioned by the floor panel 70 as described above, the fuel cell 20 is provided outside the vehicle, and the hydrogen tank 30 is provided in the vehicle interior R.

More specifically, the floor panel 70 extends along the vehicle front-rear direction and is divided into a front panel 71 on the vehicle front side and a rear panel 72 on the vehicle rear side.
A center console 73 formed in a convex shape toward the passenger compartment is provided at the center of the front panel 71 in the vehicle width direction, and the fuel cell 20 is provided in the center console 73. . The fuel cell 20 is covered from the bottom with an under cover 75 provided below the front panel 71.

  On the other hand, the rear panel 72 has a tank loading portion 74 formed in a concave shape toward the upper side of the vehicle. The hydrogen tank 30 is loaded on the tank loading portion 74 in a state of being accommodated in a tank container 40 described later. ing. The configuration on the vehicle rear side will be described in detail later with reference to FIGS.

  The fuel cell 20 has, for example, a stack structure in which tens to hundreds of cells are stacked. Each cell is configured by sandwiching a membrane electrode structure (MEA) between a pair of separators. The membrane electrode structure is composed of two electrodes, an anode electrode (anode) and a cathode electrode (cathode), and a solid polymer electrolyte membrane sandwiched between these electrodes. Usually, both electrodes are formed of a catalyst layer that performs an oxidation / reduction reaction in contact with the solid polymer electrolyte membrane and a gas diffusion layer in contact with the catalyst layer. The fuel cell 20 generates power by an electrochemical reaction when hydrogen gas is supplied to the anode electrode (anode) side and air containing oxygen is supplied to the cathode electrode (cathode) side by a reaction gas supply device (not shown). . The electric power generated by the fuel cell 20 is supplied to the drive motor 10. Therefore, the driving force generator in the fuel cell vehicle 1 is constituted by the fuel cell 20 and the drive motor 10.

Below, with reference to FIGS. 2-10, the structure of the vehicle rear side is demonstrated.
FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 and is a cross-sectional view showing the configuration on the vehicle rear side. FIG. 2 is a cross-sectional view as seen from the rear side of the vehicle. Therefore, the left side in FIG. 2 indicates the left side in the vehicle traveling direction, and the right side in FIG. 2 indicates the right side in the vehicle traveling direction.
FIG. 3 is an exploded perspective view showing configurations of the rear panel 72 and the tank container 40. In FIG. 3, the left side is the front of the vehicle and the right side is the rear of the vehicle.

  As shown in FIG. 2, the hydrogen tank 30 includes a substantially cylindrical high-pressure vessel 31 filled with hydrogen gas, and a lid member 33 that seals an opening 32 formed on one end side of the high-pressure vessel 31. Consists of including. The hydrogen tank 30 is loaded on the rear panel 72 along the vehicle width direction with the lid member 33 facing the vehicle traveling direction right side while being accommodated in a tank container 40 described later.

FIG. 4 is a side view showing the configuration of the hydrogen tank 30. More specifically, the hydrogen tank 30 is viewed from the right side in the vehicle traveling direction.
A gas filling pipe 37, a gas supply pipe 38, and a gas discharge pipe 39 are connected to the lid member 33.

The gas filling pipe 37 is connected to a filling port provided outside the vehicle. Hydrogen gas is filled into the high-pressure vessel 31 through the gas filling pipe 37.
The gas supply pipe 38 is connected to the fuel cell 20. The hydrogen gas filled in the high-pressure vessel 31 is supplied to the fuel cell 20 through the gas supply pipe 38.
The gas discharge pipe 39 is open to the outside of the vehicle. When the hydrogen tank 30 reaches a predetermined temperature or higher, the hydrogen gas filled in the high-pressure vessel 31 is discharged outside the vehicle through the gas discharge pipe 39.

FIG. 5 is a front view showing the configuration of the lid member 33.
The lid member 33 includes a filling passage 371 to which a gas filling pipe 37 is connected, a supply passage 381 to which a gas supply pipe 38 is connected, and a discharge passage 391 to which a gas discharge pipe 39 is connected. , Formed as a passage communicating with the inside of the high-pressure vessel 31.

The filling passage 371 is provided with a check valve (not shown) for preventing the hydrogen gas supplied from the filling port to the high pressure vessel 31 from flowing backward.
The supply passage 381 is provided with a solenoid valve (not shown) for adjusting the supply amount of hydrogen gas filled in the high-pressure vessel 31.
The discharge passage 391 is provided with a safety valve 34 that is closed when the temperature is equal to or lower than a predetermined temperature, and is opened when the temperature is higher than the predetermined temperature.

  6 and 7 are cross-sectional views taken along line VI-VI in FIG. 5, and are cross-sectional views showing the configuration of the safety valve 34. More specifically, FIG. 6 shows a state where the safety valve 34 is closed, and FIG. 7 shows a state where the safety valve 34 is opened.

  The safety valve 34 includes a cylinder 341 formed in the discharge passage 391, a valve body 342 that is slidably provided in the cylinder 341 and opens and closes the discharge passage 391, and a valve body support portion 343 that supports the valve body 342. The spring 344, the soluble metal 345, and the valve body 342, the valve body support portion 343, the spring 344, and the fastening member 346 for accommodating the soluble metal 345 in the cylinder 341.

The valve body support portion 343 is slidably provided in the cylinder 341 and supports the valve body 342 along the direction of opening and closing.
The fusible metal 345 melts when a predetermined temperature is exceeded, and is made of, for example, a Bi-In alloy. The soluble metal 345 is provided between the valve body support portion 343 and the fastening member 346.
The spring 344 is provided between the valve body support portion 343 and the valve body 342, biases the valve body support portion 343 toward the soluble metal 345 side, and closes the discharge passage 391 in the valve body 342. Energize.

  Here, for example, when the fusible metal 345 exceeds the above temperature due to a fire, the fusible metal 345 is melted as shown in FIG. When the fusible metal 345 is melted, the spring 344 is extended, and the valve body support portion 343 is biased toward the fastening member 346 by the elastic force of the spring 344. Further, the valve body 342 is pushed up to the fastening member 346 side by the pressure of the hydrogen gas in the high-pressure vessel 31, whereby the hydrogen gas in the high-pressure vessel 31 is discharged to the outside of the room.

2 and 3, the configuration of the tank container 40 and the rear panel 72 will be described.
The rear panel 72 extends in the vehicle front-rear direction, and a tank loading portion 74 on which the tank container 40 is loaded is formed.

  The tank loading portion 74 is formed in a concave shape upward, and is lower than a substantially rectangular edge 77 surrounding the tank loading portion 74. A substantially rectangular first traveling wind introduction port 781 for introducing outside air into the tank container 40 from the outside of the vehicle is formed in the vicinity of the lowermost portion of the center of the tank stacking portion 74 so as to penetrate therethrough. The first traveling wind introduction port 781 extends along the vehicle width direction and further inclines toward the front of the vehicle (see FIG. 10 described later).

  As shown in FIG. 2, the tank container 40 has a substantially cylindrical shape extending along the vehicle width direction and is larger than the hydrogen tank 30. The tank container 40 is formed in a shape along the outer shape of the hydrogen tank 30 so as to cover the periphery of the hydrogen tank 30. Further, the gas filling pipe 37, the gas discharge pipe 38, and the gas supply pipe 39 described above can be disposed between the surface of the hydrogen tank 30 and the inner surface of the tank container 40, and a second described later. A clearance that allows the outside air introduced from the traveling wind inlet 422 to flow is secured.

  Hereinafter, the tank container 40 will be described as an upper tank container 41 above the lid member 33 of the hydrogen tank 30 and a tank container lower part 42 below the lid member 33 of the hydrogen tank 30.

  The tank container upper portion 41 is formed with a pipe discharge port 411 and a ventilation port 412 as a traveling wind discharge port. The pipe discharge port 411 is formed in the approximate center of the tank container upper portion 41, and the ventilation port 412 is formed in the tank container upper portion 41 on the right side in the vehicle traveling direction and in the vicinity of the lid member 33 of the hydrogen tank 30.

A pipe duct 413 is connected to the pipe discharge port 411, and the plurality of pipes 37, 38, 39 are taken out of the tank container 40 through the pipe discharge port 411 and the pipe duct 413. .
The ventilation port 412 is connected to a ventilation duct 414 communicating with the outside of the vehicle. As a result, the inside of the tank container 40 communicates with the outside of the vehicle.

FIG. 8 is a perspective view showing the configuration of the tank container lower part 42, and FIG. 9 is a bottom view showing the structure of the tank container lower part 42. 8 and 9 are views of the tank container 40 as viewed from below.
As shown in FIG. 8, the tank container lower portion 42 is provided with a convex portion 421 formed in a convex shape downward. In order to introduce outside air into the tank container 40 from the outside of the vehicle, a substantially rectangular second traveling wind introduction port 422 is formed in the vicinity of the lowermost portion of the substantially central portion of the convex portion 421 so as to penetrate therethrough. The second traveling wind inlet 422 extends along the vehicle width direction and is inclined toward the front of the vehicle (see FIG. 10 described later). Moreover, the edge part 423 of the 2nd driving | running | working wind introduction port 422 is formed substantially flat among this convex part 421. FIG.

  A frame-shaped subframe 50 is attached to the tank container lower part 42. The sub-frame 50 has substantially the same shape as the edge 77 of the rear panel 72, and the tank container 40 is fixed to the rear panel 72 via the sub-frame 50 (see FIG. 2). A plurality of insulators 51 that absorb vibration transmitted from the rear panel 72 to the tank container 40 are provided on the lower surface of the subframe 50, that is, the surface on the rear panel 72 side. Further, when the sub frame 50 is fixed to the tank container lower part 42, the convex portion 421 is surrounded by the sub frame 50, and the second traveling wind inlet 422 is exposed from the lower side of the sub frame 50.

  A baffle plate 60 that covers a part of the second traveling wind inlet 422 in the vicinity of the second traveling wind inlet 422 in the tank container lower part 42 and guides outside air to the safety valve 34 of the hydrogen tank 30. Is provided. The baffle plate 60 introduces the second traveling wind so that a gap D is formed on the right side in the vehicle traveling direction, that is, on the safety valve 34 side of the hydrogen tank 30 in the second traveling wind introduction port 422 extending along the vehicle width direction. It is provided between the port 422 and the hydrogen tank 30 (see FIG. 9).

2 and 3, the procedure for fixing the tank container 40 to the rear panel 72 will be described.
The tank container 40 attached to the subframe 50 as described above is attached to the rear panel 72 by fixing the subframe 50 to the edge portion 77. Here, when the tank container 40 is fixed to the rear panel 72, the first traveling wind introduction port 781 of the tank stacking portion 74 and the second traveling wind introduction port 422 of the tank container lower part 42 face each other. The interior of 40 communicates with the outside of the vehicle.
Further, when the tank container 40 is fixed to the rear panel 72, an annular seal member that surrounds the first traveling wind introduction port 781 and the second traveling wind introduction port 422 between the tank stacking portion 74 and the tank container lower portion 42. 43 is interposed. As a result, the space between the tank loading portion 74 and the tank container lower portion 42 is sealed by the seal member 43 around the traveling air inlets 781 and 422.

According to the fuel cell vehicle 1 of the present embodiment, the following effects are obtained.
(1) The hydrogen tank 30 was accommodated in the tank container 40, and this tank container 40 was further loaded on top of the floor panel 70. That is, the total capacity of the hydrogen tank 30 can be increased by providing the hydrogen tank 30 in the vehicle interior.
In addition, the tank loading part 74 of the floor panel 70 and the tank container lower part 42 of the tank container 40 facing the tank loading part 74 are respectively connected to the outside of the fuel cell vehicle 1 and the inside of the tank container 40. A first traveling wind introduction port 781 and a second traveling wind introduction port 422 are formed, and a ventilation port 412 that communicates the inside of the tank container 40 and the outside of the fuel cell vehicle 1 is formed in the tank container upper portion 41 of the tank container 40. Formed.
As a result, as shown by the arrow 91 in FIG. 2, the running wind is introduced into the tank container 40 from the running wind introduction ports 781 and 422, and further remains inside the tank container 40 as shown by the arrow 92. The gas can be discharged from the ventilation port 412 to the outside of the vehicle. Therefore, even when hydrogen gas leaks from the hydrogen tank 30, the hydrogen gas can be actively discharged out of the vehicle without accumulating the hydrogen gas inside the tank container 40. Further, according to the fuel cell vehicle 1 of the present embodiment, it is not necessary to provide a ventilation device such as a fan in order to ventilate the inside of the tank container 40, so that the space in the vehicle interior can be used effectively.

  (2) As indicated by an arrow 93 in FIG. 2, the traveling wind introduced from the tank container lower part 42 of the tank container 40 passes through the right side in the vehicle traveling direction inside the tank container 40 and escapes from the ventilation port 412 to the outside of the vehicle. . Further, the lid member 33 of the hydrogen tank 30 is disposed on the outside air flow path in the tank container 40. In this hydrogen tank, the lid member 33 is the portion that is difficult to seal and most likely to leak hydrogen gas. Therefore, even if hydrogen gas leaks from the hydrogen tank 30, the leaked hydrogen gas can be reliably discharged out of the vehicle together with the traveling wind. Therefore, the safety of the fuel cell vehicle 1 can be further improved.

  (3) By making the shape of the tank container 40 along the outer shape of the hydrogen tank 30, the gap between the tank container 40 and the hydrogen tank 30 can be made as small as possible, and the size of the tank container 30 can be further increased. Can only be made smaller. In this case, the amount of gas remaining in the tank container 40 can be reduced by reducing the gap between the tank container and the hydrogen tank 30 as much as possible. Therefore, the safety of the fuel cell vehicle 1 can be further improved.

  (4) A frame-shaped subframe 50 is attached to the tank container lower portion 42, and the tank container 40 is fixed to the tank stacking portion 74 via the subframe 50. Thereby, workability | operativity can be improved.

  (5) The space between the tank loading portion 74 and the tank container lower portion 42 is sealed by the seal member 43 around the respective traveling wind inlets 781 and 422. Thereby, hydrogen gas leaking from the hydrogen tank 30 can be prevented from accumulating between the floor panel 70 and the tank container 40. Therefore, the safety of the fuel cell vehicle 1 can be further improved.

(6) FIG. 10 is a cross-sectional view taken along line XX in FIG. The left side in FIG. 10 indicates the front of the vehicle, and the right side indicates the rear of the vehicle. A line HL indicates a horizontal line, that is, a vehicle traveling direction.
As shown in FIG. 10, the first traveling wind inlet 781 of the rear panel 72 and the second traveling wind inlet 422 of the tank container 40 are inclined with respect to the vehicle traveling direction HL, so that the traveling wind is It can be introduced more actively inside. Therefore, it is possible to further suppress the hydrogen gas from staying in the tank container 40 and further improve the safety of the fuel cell vehicle.

  (7) A baffle plate that covers a part of the second traveling wind inlet 422 in the vicinity of the second traveling wind inlet 422 in the tank container 40 and guides outside air to the safety valve 34 of the hydrogen tank 30. 60 was provided. By providing such a baffle plate 60, for example, when a fire occurs in the fuel cell vehicle 1, the outside air heated by the fire can be guided to the safety valve 34, and the safety valve 34 can be opened quickly. Therefore, the safety of the fuel cell vehicle 1 can be further improved.

Second Embodiment
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.
In the following description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified.

FIG. 11 is a perspective view showing the configuration of the tank container 40 and the baffle plate 60A according to the present embodiment. Moreover, the left side in FIG. 11 shows the vehicle traveling direction right side, and the right side in FIG. 11 shows the vehicle traveling direction left side.
The fuel cell vehicle according to the present embodiment is different from the fuel cell vehicle 1 according to the first embodiment in the configuration of the baffle plate 60A and the position where the baffle plate 60A is provided. The baffle plate 60A of the present embodiment is fixed to the tank container 40 so as to cover a part of the second traveling wind introduction port 422 from the outside.

FIG. 12 is a perspective view showing the configuration of the baffle plate 60A. More specifically, FIG. 12 is a perspective view of the baffle plate 60A viewed from the tank container lower part 42 side.
In addition, an outer air passage 61A having a U-shaped cross section extending along the vehicle width direction from one end side to the other end side is formed substantially at the center of the baffle plate 60A.
A first outside air introduction port 62A for introducing outside air is provided on one end side of the outside air passage 61A. On the other hand, on the other end side of the outside air passage 61A, an inclined portion 63A that changes the flow of outside air flowing through the outside air passage 61A from one end side to the other end side is provided.

  The upper side of the side portions 64A and 64A that are the side walls of the outside air passage 61A is formed in a flange shape, and a plurality of attachment portions 65A that come into contact with the edge portion 423 of the second traveling wind inlet 422 of the tank container 40 are provided. Further, the height between the mounting portions 65A is low, and a plurality of gap portions 66A are formed. By forming such a gap portion 66A, a gap is formed between the baffle plate 60A and the edge portion 423 of the tank container 40, and outside air can be introduced into the outside air passage 61A from this gap.

Returning to FIG. 11, the baffle plate 60 </ b> A configured as described above directs the inclined portion 63 </ b> A to the vehicle traveling direction right side, that is, the safety valve 34 side (see FIG. 13 described later) of the hydrogen tank 30, and the tank container lower portion Each attachment portion 65A is fixed to the edge portion 423 of the second traveling wind inlet port 422.
Here, in the baffle plate 60A, a second outside air introduction port 67A as a gap not covered by the baffle plate 60A is formed on the right side in the vehicle traveling direction of the second traveling wind introduction port 422 extending along the vehicle width direction. The tank container 40 is fixed as described above.

The fuel cell vehicle according to the present embodiment has the following effects.
(8) A baffle plate that covers a part of the second traveling wind inlet 422 in the vicinity of the second traveling wind inlet 422 in the outside of the tank container 40 and guides outside air to the safety valve 34 of the hydrogen tank 30. 60A was provided. By providing such a baffle plate 60A, for example, when a fire occurs in a fuel cell vehicle, the outside air heated by the flame can be guided to the safety valve, and the safety valve can be quickly opened. Therefore, the safety of the fuel cell vehicle can be further improved.

  (9) FIG. 13 is a bottom view showing the configuration of the tank container 40. The baffle plate 60A was fixed to the edge portion 423 of the second traveling wind inlet 422 of the tank container 40, and a plurality of gaps were formed between the baffle plate 60A and the edge portion 423. Thereby, as shown by the white arrow 95 in FIG. 13, external air can further be introduce | transduced through these clearance gaps. Therefore, the safety of the fuel cell vehicle can be further improved.

  (10) By fixing the inclined portion 63A of the baffle plate 60A toward the safety valve 34 side of the hydrogen tank 30 to the tank container lower portion 42, as shown by the white arrow 96 in FIG. The outside air introduced from 62A can be actively flowed into the safety valve 34. Furthermore, a second outside air inlet 67A that is not covered by the baffle plate 60A is provided on the safety valve 34 side of the second traveling wind inlet 422 of the tank container lower part 42. Thereby, as shown by the white arrow 97 in FIG. 13, it can be made to actively flow into the safety valve 34 side via the second outside air introduction port 67A.

  For example, when a fire occurs in the fuel cell vehicle, the baffle plate 60A protects the high-pressure vessel 31 of the hydrogen tank 30 from the flame, and the outside air heated by the flame or the flame is transferred to the two first outside air inlets 62A and The safety valve 34 can be positively guided to the safety valve 34 side through the second outside air introduction port 67A, and the safety valve 34 can be quickly opened. Therefore, the safety of the fuel cell vehicle can be further improved.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements and the like within a scope that can achieve the object of the present invention are included in the present invention.

1 is a side view showing a schematic configuration of a fuel cell vehicle according to a first embodiment of the present invention. It is sectional drawing along line II-II in FIG. It is a disassembled perspective view which shows the structure of the rear part panel and tank container which concern on the said embodiment. It is a side view which shows the structure of the hydrogen tank which concerns on the said embodiment. It is a front view which shows the structure of the cover member which concerns on the said embodiment. It is sectional drawing along line VI-VI in FIG. It is sectional drawing along line VI-VI in FIG. It is a perspective view which shows the structure of the tank container lower part which concerns on the said embodiment. It is a bottom view which shows the structure of the tank container lower part which concerns on the said embodiment. It is sectional drawing along line XX in FIG. It is a perspective view which shows the structure of the tank container and baffle plate of the fuel cell vehicle which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the structure of the baffle plate which concerns on the said embodiment. It is a bottom view which shows the structure of the tank container which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Fuel cell vehicle 10 ... Drive motor (drive force generator)
20 ... Fuel cell (driving force generator)
DESCRIPTION OF SYMBOLS 30 ... Hydrogen tank 31 ... High pressure vessel 32 ... Opening part 33 ... Lid member 34 ... Safety valve 40 ... Tank container 41 ... Tank container upper part 412 ... Ventilation port (running wind discharge port)
414 ... ventilation duct 42 ... tank container lower part 421 ... convex part 422 ... second traveling wind inlet (running wind inlet)
423 ... Edge 43 ... Seal member 50 ... Subframe 60, 60A ... Baffle plate 61A ... Outside air passage 62A ... First outside air introduction port 63A ... Inclined portion 67A ... Second outside air introduction port 70 ... Floor panel 72 ... Rear panel 74 ... Tank loading part (loading part)
781... First traveling wind inlet 781 (running wind inlet)

Claims (8)

A driving force generator for generating driving force using hydrogen gas as fuel;
A hydrogen tank for storing hydrogen gas;
A fuel cell vehicle comprising a tank container covering the periphery of the hydrogen tank,
The tank container is loaded on top of a floor panel that divides the inside and outside of the vehicle in a state in which the hydrogen tank is accommodated,
Out of the fuel cell vehicle and the inside of the tank container, respectively, are placed on the loading part of the floor panel on which the tank container is loaded, and on the lower part of the tank container facing the loading part. A running wind inlet that communicates is provided,
In the upper part of the tank container, a traveling wind discharge port is provided for communicating the inside of the tank container and the outside of the fuel cell vehicle ,
The hydrogen tank includes a high-pressure vessel filled with hydrogen gas, and a safety valve that opens when the temperature exceeds a predetermined temperature and discharges the hydrogen gas in the high-pressure vessel,
A baffle plate is provided in the vicinity of the traveling wind inlet at the lower part of the tank container or the traveling wind inlet of the loading section to cover a part of the traveling wind inlet and guide outside air to the safety valve. A fuel cell vehicle. The hydrogen tank includes a high-pressure vessel filled with hydrogen gas, and a lid member that seals an opening formed on one end side of the high-pressure vessel,
2. The fuel cell vehicle according to claim 1, wherein the lid member is disposed on a flow path of outside air flowing from the traveling wind introduction port to the traveling wind discharge port in the tank container.   The fuel cell vehicle according to claim 1, wherein the tank container has a shape along an outer shape of the hydrogen tank. The tank container lower part is formed in a convex shape downward, and the traveling wind inlet is formed near the lowermost part of the tank container lower part,
The loading portion is formed in a concave shape upward, and the traveling wind inlet is formed near the lowermost portion of the loading portion,
4. The fuel cell vehicle according to claim 1, wherein the tank container is fixed to the floor panel via a substantially frame-shaped frame surrounding the loading portion. 5.   The fuel cell vehicle according to any one of claims 1 to 4, wherein a space between the loading portion and the lower portion of the tank container is sealed by a seal member around each traveling wind inlet.   6. The fuel cell vehicle according to claim 1, wherein each of the tank container and the traveling wind inlet of the floor panel is inclined toward the front of the vehicle. The baffle plate is fixed to the edge of the running air inlet of the tank container,
The fuel cell vehicle according to any one of claims 1 to 6, wherein a gap is formed between the baffle plate and the edge portion. The baffle plate is formed with an outside air passage extending from one end side to the other end side,
A first outside air introduction port for introducing outside air is provided on one end side of the outside air flow path,
The other end side of the outside air flow path is provided with an inclined portion that changes the flow of the outside air flowing through the outside air flow path upward,
The baffle plate is fixed to the edge of the traveling air inlet at the bottom of the tank container, with the inclined portion facing the safety valve.
The fuel according to any one of claims 1 to 7 , wherein a second outside air inlet that is not covered by the baffle plate is provided on the safety valve side of the traveling wind inlet at the lower part of the tank container. Battery powered vehicle.

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