Fuel cell vehicle

Abstract

To provide a fuel cell vehicle which can reduce, when having a vehicle side collision, impact applied to a fuel tank to prevent breakage of the fuel tank.SOLUTION: A fuel cell vehicle 1 comprises: a vehicle body frame 3 with a pair of side members 3A which are arranged under a vehicle body 2; a plurality of fuel tanks 31 which supply a fuel cell stack 10 with fuel gas; and a radiator 43B as a cooling system. The fuel tank 31 is installed on the vehicle body 2 at an outer side of the vehicle body 2 in a vehicle width direction W relative to the side member 3A so that a cylindrical part 31a of the fuel tank is along a front-back direction. The radiator 43B is installed on the vehicle body 2 at a further outer side in the vehicle width direction W relative to the fuel tank 31 so that the radiator is arrayed with the fuel tank 31.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a fuel cell vehicle having a fuel tank that supplies fuel gas to a fuel cell stack. Regarding. [Background technology]

[0002] As a conventional fuel cell vehicle of this type, for example, Patent Document 1 discloses a vehicle having a fuel cell extending in the front-rear direction. A fuel cell vehicle is disclosed that supports a fuel tank having a cylindrical portion. , is disposed outside the body frame in the vehicle width direction of the vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-121656 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the fuel cell vehicle described in Patent Document 1, the side of the vehicle is subject to impact due to a collision, etc. In the event of an impact, the external force caused by the impact acts directly on the fuel tank.

[0005] In view of this, the present invention provides a method for preventing a load applied to a fuel tank when an impact acts on the side of a vehicle. The present invention provides a fuel cell vehicle capable of reducing the impact caused by the vehicle. [Means for solving the problem]

[0006] In order to solve the above problems, the fuel cell vehicle according to the present invention comprises a vehicle body and a drive unit for driving the vehicle body. a fuel cell system for supplying power to the driving device; and a cooling system for cooling at least one of the components of the fuel cell system. It is a fuel cell vehicle.

[0007] The vehicle body includes a vehicle body frame at a lower portion of the vehicle body, and the fuel cell system The system includes a fuel cell stack and a plurality of fuel cells that supply fuel gas to the fuel cell stack. The fuel tank includes a cylindrical portion and a pair of fuel tanks formed on both ends of the cylindrical portion. a pair of dome portions, and the vehicle body frame is arranged along the front-rear direction of the vehicle body. The cooling system includes a pair of side members extending from the vehicle body. There are.

[0008] The fuel tank is disposed on the outer side of the side member in the vehicle width direction of the vehicle body. The cylinder portion is attached to the vehicle body so that the axis of the cylinder portion is aligned along the front-rear direction. The radiator is disposed in front of the fuel tank on the outer side in the vehicle width direction. The fuel tank is attached to the vehicle body so as to be aligned with the fuel tank.

[0009] According to the present invention, when an external force due to an impact acts on the side of a fuel cell vehicle, the fuel tank is The radiator, which is installed on the outside of the vehicle width, acts as a shock absorber for the fuel tank. As a result, the impact on the fuel tank can be reduced. On the outside of the fuel tank, a long and narrow space is formed extending in the front-rear direction of the vehicle body. However, according to the present invention, such a space is difficult to utilize. A radiator can be placed in a space of this shape as a suitable device. Therefore, the space available for arranging the devices in the vehicle body can be effectively utilized.

[0010] In a more preferred embodiment, the radiator comprises a radiator body through which the cooling liquid flows, and a front The radiator body is provided with a fan that blows air toward the radiator body, and the rotating shaft of the fan is The above-mentioned is arranged so as to be offset in the vertical direction with respect to the axis of the cylindrical portion of the fuel tank. A fan may be provided.

[0011] In this embodiment, the radiator fan blows air toward the radiator body. The rotation axis of the wheel is arranged along the vehicle width direction. When the radiator and the fan are displaced inward in the vehicle width direction, the part along the rotation axis of the fan A component (e.g., a rotating shaft) may strike the outer surface of the fuel tank. The rigidity of the aligned portion is high, so the fuel tank is easily damaged. Even in such a case, the axis of the cylindrical part of the fuel tank and the rotation axis of the fan are offset. Since the tank is rotated, the part along the axis of rotation slides on the tank surface and displaces. This allows external forces acting on the fuel tank to escape.

[0012] In a more preferred embodiment, the cylindrical portion and each of the dowels are disposed in a side view of the vehicle body. The radiator body may be disposed so as to cover the boundary with the hub portion.

[0013] According to this aspect, the fuel tank for storing hydrogen gas as fuel in the fuel cell vehicle is For example, it has a cylindrical portion and a pair of dome portions formed on both ends of the cylindrical portion. In the fuel tank of this shape, the boundaries between each dome and the cylindrical section are larger than the other parts of the fuel tank. Therefore, according to this embodiment, the boundary between the pair of dome portions and the cylindrical portion, which is weak in strength, is The radiator body covers the fuel tank and prevents deformation of the fuel tank even if external force is applied due to an impact. Damage can be prevented. Effect of the Invention

[0014] According to the fuel cell vehicle of the present invention, when an impact acts on the side of the vehicle, the fuel tank is subjected to a large amount of shock. This can reduce the impact of the shock. [Brief description of the drawings]

[0015] [Figure 1] 1 is a schematic side view of one embodiment of a fuel cell vehicle according to the present invention. [Diagram 2] FIG. 2 is a plan view of the fuel cell vehicle shown in FIG. [Diagram 3] FIG. 2 is a rear side view of the fuel cell vehicle shown in FIG. [Figure 4] 4 is a block diagram showing the configuration of a main part of a fuel cell system used in the fuel cell vehicle shown in FIGS. 1 to 3. FIG. [Diagram 5] 4 is a side view showing a main part of a support device that attaches a fuel tank and a radiator to a vehicle body frame in the fuel cell vehicle of the present embodiment. FIG. [Figure 6] FIG. 6 is a view taken along line AA in FIG. 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, a fuel cell vehicle according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic elevational view of a fuel cell vehicle according to this embodiment, FIG. 2 is a plan view of FIG. 1, and FIG. It should be noted that the drawings only show a schematic representation of some of the configuration, and are not intended to be limiting. In order to simplify the description, some components are omitted.

[0017] 1. Overall configuration of fuel cell vehicle (vehicle) 1 As shown in FIG. 1 to FIG. 3, a fuel cell vehicle 1 according to this embodiment includes a vehicle body 2 and a vehicle The fuel cell vehicle 1 further includes a drive unit 5 that is a power source for driving the main body 2. A fuel cell system 100 for supplying power to a drive unit 5, and a fuel cell system and a cooling system 40 for cooling at least one of the components of the system 100. The fuel cell vehicle (vehicle) 1 of this embodiment is basically a vehicle such as a truck. This vehicle is equipped with a fuel cell system.

[0018] 2. Vehicle body 2 and drive unit 5 The vehicle body 2 is made up of a cabin 6 in which the driver sits and a container located behind the cabin 6. and a vehicle body frame 3 arranged under the vehicle body 2 and extending in the front-rear direction of the vehicle. In FIG. 1, the container 8 is depicted by a two-dot chain line, and in the subsequent figures, omits container 8.

[0019] In this embodiment, the vehicle body frame 3 is made up of a pair of parallel side members facing each other with a gap therebetween. - 3A, 3A and a plurality of cross members 3B, 3B connecting them in the vehicle width direction. The rear end of the vehicle body frame 3 is fixed to a rear bumper 3C. A container 8 such as a loading platform or a luggage compartment is installed on the upper portion of the vehicle body frame 3.

[0020] The vehicle body frame 3 is provided at the front and lower portions thereof with a front wheel support via a suspension and steering mechanism (not shown). The wheels 4A are fixed, and two axles are mounted on the rear lower side of the body frame 3 via suspensions. The rear wheels 4B of the two axles are fixed. The rear wheels 4B of the two axles are made up of double tires and are A drive unit 5 is installed in the center.

[0021] In this embodiment, the drive unit 5 is an axle motor unit. The drive unit basically consists of a drive motor (not shown) and a differential gear (not shown). The drive unit 5 is disposed between a pair of side members 3A, 3A constituting the body frame 3. Therefore, the fuel cell vehicle 1 is a rear-wheel two-axle drive vehicle. do.

[0022] A fuel cell module 1A is installed in front of the vehicle body frame 3, and A cabin 6 that constitutes the driver's seat is installed. In addition, behind the cabin 6, there are multiple The rack 7 is fixed to the fuel cell stack 10. A battery 52 and a fuel tank 31 are installed.

[0023] 3. Fuel Cell System 100 Here, a fuel cell that supplies power to a drive unit 5 that drives a vehicle body 2 of a fuel cell vehicle 1. The system 100 will be described with reference to FIG. 4. FIG. 4 shows the main components of the fuel cell system 100. FIG. 2 is a block diagram showing a configuration of a portion;

[0024] As shown in FIG. 4, the fuel cell system 100 includes a fuel cell stack 10 and a fuel cell A fuel cell module 1A including a plurality of auxiliary devices for driving the tack 10, and a maintenance unit In addition to the equipment such as the fuel tank 31 that stores hydrogen gas, the system is also composed of other devices. As shown in FIG. 1, the fuel cell module 1A is mounted on a vehicle body frame 3 of a vehicle body 2. It is fixed at the front.

[0025] In addition, some of the auxiliary components constituting the fuel cell module 1A are attached to other parts of the vehicle frame 3. For example, the fuel cell module 1A is fixed to the rear of the vehicle body frame 3. A fuel tank 31 and a battery 52, which will be described later, are fixed to the upright rack 7. At the same time, other equipment is also fixed.

[0026] The fuel cell of the fuel cell stack 10 includes an ion-permeable electrolyte membrane (not shown) and The electrolyte membrane is sandwiched between an anode catalyst layer (anode electrode) and a cathode catalyst layer (cathode electrode). The fuel cell is equipped with a membrane electrode assembly (MEA) consisting of a fuel gas and a fuel electrode. The gas is hydrogen gas, which is the base gas, and the gas is air, which is the oxidant gas. Gas diffusion layers (GDLs) are formed to collect the generated electricity. The membrane electrode assembly placed on the substrate is called MEGA, and MEGA is sandwiched between a pair of separators. Here, if the MEGA is the power generating part of the fuel cell and there is no gas diffusion layer, The MEA is the power generating part of the fuel cell.

[0027] The fuel cell stack 10 is connected to a number of auxiliary devices that drive it, as shown in FIG. These accessories constitute an air supply system 20, a hydrogen gas supply system 30, and a control system 50. is doing.

[0028] The air supply system 20 supplies air to the cathode electrodes of the cells that make up the fuel cell stack 10. After the electrochemical reaction in each fuel cell is completed, the off-gas is discharged from the fuel cell stack 10. The air supply system 20 is configured to supply air from the upstream side of the fuel cell stack 10. A cleaner 21, a compressor 22, an intercooler 23, etc. are provided. A muffler 28 and the like are provided downstream of the block 10.

[0029] The air cleaner 21 is used to remove contaminants such as dust from the air taken in from the atmosphere. and is disposed upstream of the compressor 22 that supplies air to the fuel cell stack 10. The compressor 22 compresses the air introduced through the air cleaner 21, and the compressed air The intercooler 23 pumps the refrigerant pumped from the compressor 22 to the intercooler 23. When the introduced air passes through, it is cooled, for example by heat exchange with a cooling liquid, and the fuel cell The fuel cell module 1A of this embodiment supplies the fuel cell 10 (cathode electrode) with The fuel cell stack 10 is provided with a compressor 22 and an intercooler 23 as auxiliary equipment. is.

[0030] The hydrogen gas supply system 30 supplies hydrogen to the anode electrodes of the cells that make up the fuel cell stack 10. Gas is supplied to each fuel cell for electrochemical reaction, and the off-gas is discharged to the fuel cell stack. The hydrogen gas supply system 30 is disposed upstream of the fuel cell stack 10. The fuel tank 31 is a hydrogen gas supply source, and the hydrogen gas supply device 33 is provided. A gas-liquid separator 37 is provided downstream of the cell stack 10. The hydrogen gas supply system 30 includes: A gas-liquid separator 37 and a hydrogen gas separator 38 are used as auxiliary devices of the fuel cell stack 10. The hydrogen gas pump 38 circulates hydrogen gas to the upstream side.

[0031] The hydrogen gas supply device 33 is an injector or the like that supplies hydrogen gas to the fuel cell stack 10. The gas-liquid separator 37 separates the generated water contained in the off-gas. The hydrogen gas is sent to the hydrogen gas pump 38, and the generated water is sent to the muffler 28. The pump 38 pumps the hydrogen gas separated by the gas-liquid separator 37 and circulates it to the hydrogen gas supply line. The fuel cell module 1A of this embodiment is used as an auxiliary device for the fuel cell stack 10. , a hydrogen gas pump 38, etc.

[0032] The control system 50 controls the operation of the fuel cell stack 10. A control device 51, a battery 52, a PCU 53, a converter 54, and a drive device as a load. The control device 51 controls the valves described above and a PCU (power control unit) described later. The battery 52 controls the electric power generated by the fuel cell stack 10. The PCU 53 supplies power to the drive unit 5 according to the control of the control unit 51. The converter 54 is included in the high voltage device 54A (see FIG. 1) and is connected to the fuel cell starter. The output voltage of the inverter 10 is boosted and supplied to the PCU 53. These auxiliary devices are connected to the cable 92. In Figure 4, only some of the cables are electrically connected. Table 92 is shown.

[0033] 4. Cooling system 40 The cooling system 40 is configured to cool at least the drive unit 5 and the components of the fuel cell system 100. In this embodiment, the cooling system 40 cools the fuel cell stack 10. and a high-voltage device 54A (see FIG. 2) and a second cooling section 40B that cools the drive unit 5 and the like. In this embodiment, the cooling system 40 is a component of the fuel cell system 100. The fuel cell stack 10 and the high voltage equipment 54A are cooled, and in addition, the compressor 2 2 and battery 52, etc.

[0034] The first cooling section 40A is a circulation system, and includes a first pump 42A, a radiator a three-way valve (rotary valve) 45, an ion exchanger 47, and a first supply tank The first pump 42A is provided with a first coolant ( The radiator 43A pumps the cooling liquid (coolant) to the fuel cell stack 10. Cools the first cooling liquid discharged from 0.

[0035] The ion exchanger 47 has a function of removing ions from the coolant that cools the fuel cell stack 10. The three-way valve 45 is provided in the bypass passage. The cooling liquid discharged from the first auxiliary device is diverted to the radiator 43A or the ion exchanger 47. The supply tank 48A stores cooling liquid for replenishing the first cooling section 40A. In this embodiment, the fuel cell stack is provided with a cooling liquid for replenishment. The engine 10 is equipped with a first pump 42A, a three-way valve 45, and the like as auxiliary equipment.

[0036] The second cooling section 40B includes a radiator 43B, a second pump 42B, and a second supply tank 4 The second pump 42B is provided with a second coolant 8B. The radiator 43B pumps the coolant (coolant) to the converter 54, the drive unit 5, etc. The second auxiliary cools the coolant discharged from the turbine 54 and some auxiliary devices such as the drive unit 5. The supply tank 48B contains cooling liquid for replenishing the second cooling section 40B. Additionally, make-up cooling liquid is supplied to the second cooling section 40B.

[0037] Here, the first and second supply tanks 48A and 48B of the cooling system 40 each contain The first and second coolants are stored, and when the first and second coolants run short, The first and second supply tanks 48A and 48B are mounted on the rack 7 (FIG. 1 In addition, the rack 7 is equipped with multiple fuel tanks 31 and multiple More Battery 52s have also been installed.

[0038] In this embodiment, the cooling system 40 corresponds to the cooling system of the present invention. 40 is a first and second cooling section 40A, 40B having different cooling routes through which a cooling liquid flows. However, the cooling section may be one or may have additional cooling sections. .

[0039] The air supply system 20 and the hydrogen gas supply system 30 constitute the fuel cell system 100. The device and each device (auxiliary equipment, etc.) of the cooling system 40 are connected by flexible pipes 91, etc. In FIG. 4, only a pipe 91 is shown among the multiple pipes. do.

[0040] 5. Positional relationship between fuel tank 31 and radiator 43B Next, the fuel tank 31 and the radiator, which are characteristic components of the fuel cell vehicle 1 of this embodiment, will be described. The configuration of the fuel tank 33B and the surroundings will be described with reference to FIG. 5 and FIG. 6. FIG. FIG. 1 is a side view showing a main part of a support device 60 for mounting the radiator 43B and the support member 43B to a vehicle body frame 3. 6 is a view taken along line AA in FIG. 5. For ease of understanding, FIG. 5 and FIG. 6 are In order to simplify the description, some of the components are shown diagrammatically.

[0041] 5 and 6, the fuel cell system 100 includes a hydrogen gas supply system 30. The fuel tank 31 and the radiator 43B are attached to the vehicle body 2. 43B constitutes the second cooling section 40B of the cooling system 40, but for example, the first cooling section 4 0A radiator 43A.

[0042] In this embodiment, the fuel tank 31 and the radiator 43B are disposed in the vehicle body frame of the vehicle body 2. The support device 60 is fixed to the outer surface of the side members 3A, 3A of the radiator 3. The radiator 43B includes a radiator body 43a through which the coolant flows and a radiator 43b directed toward the radiator body 43a. The fan 43b rotates about a rotation axis RA. In this embodiment, the radiator 43B includes the fan 43b, but the cooling efficiency is can be ensured, the radiator 43B does not need to include the fan 43b.

[0043] In this embodiment, as shown in FIG. 6, the fuel tank 31 extends along the longitudinal direction (axis). A pair of dome portions 31b, 31b are formed on both ends of the cylindrical portion 31a. Furthermore, the fuel tank 31 has a neck fixed to the outside of each dome portion 31b. The cylindrical portion 31a and the pair of dome portions 31b, 31b form a fuel tank. The tank 31 has a storage space for storing fuel gas (hydrogen gas). Of the 31c, 31c, one neck portion 31c has a through hole (not shown) communicating with the storage space. Through this through hole, hydrogen gas is stored in and released from the storage space. The fuel tank 31 is made of a liner having a storage space and a fiberglass material impregnated with resin. The bundle is wound, and the boundary 31d between the cylindrical portion 31a and the dome portion 31b is different from the other portions. It is weaker in strength than

[0044] In this embodiment, as shown in FIG. 2 and FIG. 6, the fuel tank 31 is provided with a cylindrical portion 31a. The center CL is attached to the vehicle body 2 via a support device 60 so as to be aligned with the front-rear direction FB of the vehicle body 2. The radiator 43B is further spaced apart from the fuel tank 31 in the vehicle width direction W. On the outside, it is attached to the vehicle body 2 via a support device 60 so as to be aligned with the fuel tank 31. It is being done.

[0045] In this embodiment, two radiators 43B, 43B are provided for one fuel tank 31. The two radiators 43B, 43B are disposed outside the fuel tank 31. It is disposed next to the fuel tank 31 along the front-rear direction FB of the body 2.

[0046] Here, in the vehicle width direction W, on the outside of the fuel tank 31, This creates a long and narrow space that is difficult to use. However, the overall shape of the radiator 43B (the radiator body 43a) is a plate-like Therefore, it is possible to place the radiator 43B in such a narrow and elongated space. This allows the space in the vehicle body 2 for arranging the devices to be used effectively.

[0047] As a more specific arrangement state of the radiator 43B, when viewed from the side of the vehicle body 2, The radiator 43B has a radiator body 43a that is connected to the cylindrical portion 31a of the fuel tank 31 and each dome. The fuel cell vehicle shown in FIG. As is clear from the side view of FIG. 1, each boundary 31d of the fuel tank 31 is In this embodiment, two radiators 4 are provided for one fuel tank 31. 3B, 43B are provided, but a pair of boundaries 31d, 3 of the fuel tank 31 are provided with one radiator. May cover 1d.

[0048] As shown in FIG. 6, the support device 60 supports one fuel tank 31 at both ends along the axis CL. The neck portions 31c, 31c have a pair of support arms 61, 61 for supporting the respective supports. As shown in FIG. 5, the support arm 61 has a substantially L-shaped side surface. On the outside, a spacer washer 62 is sandwiched between them and fixed with bolts or the like.

[0049] The fuel tank 31 is fixed to the horizontal part of the support arm 61 of the support device 60 by a fixture 63. The support arms 61, 61 are fixed by clamping the neck portions 31c at both ends. A long side bar 64 is installed in the rear direction. Two poles are vertically extended from both ends of the side bar 64. The two end bars 65 are erected, and the upper ends of the two end bars 65 are connected to each other by an upper The upper bar 66 is installed so that both ends of the upper bar 66 and the upper ends of the support arms 61 cross each other. The horizontal side bars 64 and the two vertical end bars 65 are connected by a bar 67. The two radiators 43B are fixed in a rectangular space formed by the upper bar 66. Further, in a side view of the vehicle body 2, the radiator 43B The rotor body 43a covers the boundary 31d between the cylindrical portion 31a and the pair of dome portions 31b, 31b. The radiator 43B is disposed in this manner.

[0050] For this reason, in this embodiment, the fuel cell vehicle 1 is A plurality of fuel tanks 31 are arranged horizontally on the vehicle body frame 3 along the front-rear direction FB of the vehicle body 2. are attached to the vehicle body frame 3 outside the fuel tanks 31. A plurality of radiators 43B are attached so as to be aligned in the horizontal direction.

[0051] The fan 43b fixed to the inside of the radiator 43B in the vehicle width direction W is an electric fan. The motor 43c has a blade that rotates with the fuel tank 31 and the radiator. In this embodiment, the rotation shaft RA of the motor 43c is located between the motor body 43a and the The fuel tank 31 is offset by an offset amount Of in the vertical direction with respect to the axis CL of the cylindrical portion 31a. Specifically, the rotating shaft of the motor 43c (not shown) is The axis of the fuel tank 31 is offset downward by an offset amount Of from the axis of the fuel tank 31a. The radiator 43B (specifically, the fan 43b) is disposed so as to be offset from the center of the radiator 43A. The offset position may be in either the up or down direction.

[0052] 6. Operation of the Fuel Cell System 100 According to this embodiment, in the fuel cell module 1A, air is supplied to the fuel cell stack 10. Air is supplied as an oxidant gas from the system 20, and hydrogen gas is supplied from the hydrogen gas supply system 30. These supplies are used to power the MEGA or MEA power generation section in the fuel cell stack 10. An electrochemical reaction occurs in the control system 50 to generate electricity. The power of the battery 52 is supplied to the drive device 5, which is a load, by the control device 51. The fuel cell vehicle 1 can run by driving the drive unit 5 using the supplied electric power.

[0053] On the other hand, the fuel cell stack 10 is cooled by the first cooling unit 40A and controlled to a predetermined temperature range. Specifically, the high-temperature gas that has been circulated by the first pump 42A and passed through the fuel cell stack 10 is The cooling liquid is cooled by dissipating heat in the radiator 43A installed at the front of the vehicle body 2 and circulates. The ion exchanger 47 installed in the bypass passage removes ions from the cooling liquid. will be done.

[0054] In the second cooling section 40B, the coolant is circulated by the second pump 42B, and the converter 54 and the like are collected. The high voltage device 54A (see FIG. 1), the drive unit 5, etc. are cooled. The high-voltage equipment 54A, which includes the inverter 54, and the cooling liquid that has passed through the drive unit 5 and has become hot The refrigerant is cooled in the radiator 43B, becomes low in temperature, and is circulated.

[0055] 7. Effects of impact on the side of fuel cell vehicle 1 Incidentally, when the fuel cell vehicle 1 is hit or otherwise subjected to an external force due to an impact on its side, Even in such a case, the fuel tank 31 may be located on the outside in the vehicle width direction W. The attached radiator 43B deforms and acts as a shock absorber for the fuel tank 31. As a result, the impact on the fuel tank 31 can be reduced.

[0056] Here, since the radiator body 43a has a flow passage through which the coolant flows, the radiator body 43a is not affected by external forces. However, the fan 43 blowing air toward the radiator body 43a is easily deformed. b, the portion along the rotation axis of the motor 43c (for example, the rotation shaft) is the radiator main body. Even in such a case, the cylindrical portion 31 of the fuel tank 31 is difficult to deform compared to the body 43a. Since the axis CL of a and the rotation axis RA of the fan 43b are offset, Since the portion slides on the peripheral surface of the fuel tank 31, it is possible to reduce the impact on the fuel tank 31. This can prevent deformation and damage.

[0057] Furthermore, the boundaries 31d between the cylindrical portion 31a and each dome portion 31b of the fuel tank 31 are This part is weaker than the other parts of the radiator 31. Since the fuel tank 31 is covered with the motor body 43a, even if an external force is applied due to an impact, the fuel tank 31 will not be deformed or Damage can be prevented.

[0058] Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment. However, various modifications and variations are possible without departing from the spirit of the present invention as described in the claims. Design changes can be made.

[0059] For example, the protruding part of the fan that protrudes toward the fuel tank is not the rotating shaft itself. Alternatively, it may be a protruding part such as a case covering a rotating shaft. [Explanation of symbols]

[0060] 1: fuel cell vehicle, 1A: fuel cell module, 2: vehicle body, 3: vehicle frame, 3 A: side member, 5: drive mechanism, 31: fuel tank, 31a: cylindrical portion, 31b: dowel 31d: boundary; 40: cooling system; 43A, 43B: radiator; 43a: radiator Eta body, 43b: fan, 43c: motor

Claims

1. A vehicle body, a drive unit that drives the vehicle body, and a fuel supply that supplies power to the drive unit. A battery system, and at least one of the components of the drive device and the fuel cell system. A fuel cell vehicle having a cooling system for cooling the fuel cell. The vehicle body includes a vehicle body frame at a lower portion of the vehicle body, The fuel cell system includes a fuel cell stack and a and a plurality of fuel tanks for supplying fuel to the vehicle; The fuel tank has a cylindrical portion and a pair of dome portions formed on both ends of the cylindrical portion. And, The vehicle body frame includes a pair of side members extending along the front-rear direction of the vehicle body. It has The cooling system includes a radiator. The fuel tank is disposed on the outer side of the side member in the vehicle width direction of the vehicle body. The cylinder portion is attached to the vehicle body so that the axis of the cylinder portion is aligned along the front-rear direction. the law of nature, The radiator is disposed in front of the fuel tank and further outward in the vehicle width direction. A fuel cell is attached to the vehicle body so as to be aligned with the fuel tank. Pond vehicle.

2. The radiator includes a radiator body through which the coolant flows, and a radiator and a fan for blowing air. The rotation axis of the fan is offset in the vertical direction with respect to the axis of the cylindrical portion of the fuel tank.

2. The method according to claim 1, wherein the fan is disposed at a position where the fan is fixed to the wall. Fuel cell vehicle.

3. In a side view of the vehicle body, the vehicle body is provided with a cylindrical portion and a dome portion.

3. A fuel cell vehicle according to claim 2, wherein the radiator body is disposed.

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