JP2009247150A - Fuel cell vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fuel cell vehicle adjusting a temperature of an energy storage device without introducing air from inside a vehicle interior or from an air conditioner. <P>SOLUTION: The fuel cell vehicle 1 includes a fuel cell 10 arranged outside the vehicle interior, the energy storage device 21 disposed at a rear side of the fuel cell 10 and an energy storage device storing case 20 storing the energy storage device 21. A plurality of inlets 30 including a warm-up inlet 31 facing a fuel cell 10 side are formed in the energy storage device storing case 20. A temperature adjusting device 40 which selectively opens a plurality of inlets 30 and adjusts the temperature of the energy storage device 21 is arranged. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fuel cell vehicle. Specifically, the present invention relates to a fuel cell vehicle including a fuel cell provided outside a passenger compartment, a power storage device disposed on the rear side of the fuel cell, and a power storage device storage case that stores the power storage device.

In a fuel cell vehicle using a fuel cell as a power source, as a power storage device for supplying power to auxiliary machinery when starting the fuel cell or supplying auxiliary power to a drive motor when the vehicle is accelerated The battery is installed. A battery mounted on a vehicle has an optimum temperature range in which charging and discharging can be performed efficiently.
When the temperature of the battery is lower than the optimum temperature range, the internal resistance when charging and discharging is increased. As a result, charging / discharging efficiency is reduced, and fuel consumption and acceleration performance are deteriorated.
Further, when the temperature of the battery is higher than the optimum temperature range, the battery performance deterioration is accelerated. As a result, the durability of the battery is deteriorated.

Therefore, the battery case that houses the battery, the air in the vehicle interior of the vehicle, the air in the trunk room, and the air conditioner unit are connected by ducts, and one of these ducts is selected to communicate with the battery case. A vehicle temperature control system provided with a damper has been proposed (see, for example, Patent Document 1).
According to this proposed method, by controlling the switching damper, any one of air in the vehicle compartment, air in the trunk room, and air exchanged with the air conditioner unit in the battery case is controlled. Can be selectively introduced to adjust the battery to an optimum temperature.
JP 2005-254974 A

However, the vehicle temperature control system proposed in Patent Document 1 has the following problems.
That is, first, it is necessary to provide ducts for introducing air between the vehicle compartment, the trunk room, and the air conditioner unit and the battery case. Therefore, the arrangement of the plurality of ducts is complicated, and the degree of freedom in vehicle layout is low.

Secondly, since the passenger compartment and the battery case are communicated by a duct, an opening is provided in the floor of the passenger compartment, and the air in the battery case may flow into the passenger compartment.
Thirdly, when the temperature of the battery is adjusted with the air from the air conditioner unit, the air conditioner unit needs to have not only the temperature in the passenger compartment but also an extra ability to adjust the temperature of the battery. Further, it is necessary to coordinate the vehicle temperature control system with the air conditioner unit.

  The present invention has been made in consideration of the above-described problems, and an object of the present invention is to provide a fuel cell vehicle capable of adjusting the temperature of the power storage device without introducing air from the vehicle interior or air conditioning equipment.

  A fuel cell vehicle (for example, a fuel cell vehicle 1 described later) according to the present invention includes a fuel cell (for example, a fuel cell 10 described later) provided outside a vehicle compartment, and a power storage device (for example, a fuel cell vehicle disposed later). , A battery 21 described later, and a power storage device storage case (for example, a battery box 20 described later) that stores the power storage device. A plurality of intake ports (for example, an after-mentioned intake port 30 described later) including a warm-up intake port (for example, an after-mentioned warm-up intake port 31) directed to the front are formed, and the plurality of intake ports are selectively opened. And a temperature adjusting device (for example, a temperature adjusting device 40 described later) for adjusting the temperature of the power storage device.

According to the present invention, the power storage device storage case disposed outside the passenger compartment is provided with a plurality of air intakes including the warm-up air intake, and the plurality of air intakes are selectively opened to A temperature adjustment device for adjusting the temperature was provided.
Here, since the warm-up intake port is disposed toward the fuel cell side, air warmed by the power generation of the fuel cell is introduced into the warm-up intake port. Therefore, air having different temperatures can be introduced into the power storage device storage case by selectively opening the plurality of intake ports. Thereby, the temperature of the power storage device can be adjusted without introducing air from the passenger compartment or the air conditioner.

  Further, since it is not necessary to provide a duct for introducing the air in the vehicle compartment as in the prior art, the degree of freedom in the layout of the vehicle can be improved and the weight of the vehicle can be reduced.

  In this case, it is preferable that the plurality of intake ports include a cooling intake port (for example, a cooling intake port 32 to be described later) that is different in at least one of position and orientation from the warm-up intake port.

  According to the present invention, the cooling intake port is provided that differs in at least one of the position and the direction from the warm-up intake port. Therefore, the power storage device can be cooled by introducing air from the cooling inlet into the power storage device storage case. As a result, the power storage device can be warmed up or cooled by the air outside the passenger compartment, and the charge / discharge efficiency of the power storage device is improved.

  In this case, the power storage device storage case includes a case main body (for example, a battery box main body 22 described later) covering the power storage device, and a pipe (for example, a pipe 23 described later) extending from the case main body. The machine intake port is formed on the wall surface on the vehicle front side at the front end of the pipe, the cooling air intake port is formed on the wall surface on the vehicle rear side at the front end of the pipe, A switching plate (for example, a switching plate 41 described later) extending in the axial direction is rotatably provided, and the temperature adjusting device rotates the switching plate so that the warm-up intake port is closed and the temperature adjusting device is closed. It is preferable that the state can be switched between a state in which the cooling air inlet is opened and a state in which the warming air inlet is opened and the cooling air inlet is closed.

According to this invention, the power storage device storage case is configured to include the case main body and the piping. Then, a warm-up air inlet is formed in the wall on the vehicle front side at the tip of the pipe, a cooling air inlet is formed in the wall on the vehicle rear side at the tip of the pipe, and the pipe A switching plate extending in the axial direction is rotatably provided.
Therefore, by rotating the switching plate with the temperature adjustment device, the warm-up intake port is closed and the cooling intake port is opened, and the warm-up intake port is opened and the cooling intake port is closed. Therefore, the opened intake port can be easily switched.

  In this case, when the fuel cell vehicle is started in a low temperature state, it is preferable that the temperature adjustment device opens the warm-up intake port.

It has been found that when the fuel cell vehicle is started in a low temperature state, the fuel cell generates power, so that the temperature of the fuel cell rises faster than the power storage device.
Therefore, according to the present invention, when the fuel cell vehicle is started in a low temperature state, the warm-up intake port is opened. Thereby, the air heated by the power generation of the fuel cell can be introduced into the power storage device storage case from the warm-up intake port, and the power storage device can be efficiently warmed up.

  In this case, the vehicle further includes hydrogen leak detection means (for example, hydrogen gas sensors 51 and 52, which will be described later) provided in a hydrogen gas retention portion (for example, hydrogen gas retention portions 53, 54, which will be described later) of the vehicle to detect hydrogen gas, One of the plurality of intake ports is disposed in the vicinity of the hydrogen gas retention part, and when the hydrogen leak is detected by the hydrogen leak detection means, the temperature adjusting device is disposed in the vicinity of the hydrogen gas retention part. It is preferable to open the intake port.

  According to the present invention, one of the plurality of intake ports is disposed in the vicinity of the hydrogen gas retention portion, and when the hydrogen leak detection means detects hydrogen gas, the temperature adjusting device disposes in the vicinity of the hydrogen gas retention portion. Open the intake port. As a result, even if hydrogen leakage occurs and hydrogen gas stays in the hydrogen gas retention part, the hydrogen gas is introduced into the storage device storage case through the intake port arranged in the vicinity of the hydrogen gas retention part. The gas retention part can be ventilated.

  In this case, it is preferable that the hydrogen gas retention portion is provided above the fuel cell, and the intake port disposed in the vicinity of the hydrogen gas retention portion is the warm-up intake port.

  According to the present invention, the upper part of the fuel cell is used as a hydrogen gas retention part, and the warm-up intake port is disposed in the vicinity of the hydrogen gas retention part. As a result, even if hydrogen leaks and hydrogen gas stays above the fuel cell, this hydrogen gas is introduced into the storage device storage case through the warm-up intake port, and the space above the fuel cell is ventilated. it can.

  In this case, a hydrogen tank (for example, a hydrogen tank 50 to be described later) for storing hydrogen gas is further provided, and the hydrogen gas retention portion is provided above the hydrogen tank and is disposed in the vicinity of the hydrogen gas retention portion. The intake port is preferably the cooling intake port.

  According to the present invention, the hydrogen gas retention portion is located above the hydrogen tank, and the cooling inlet is disposed in the vicinity of the hydrogen gas retention portion. As a result, even if hydrogen leaks and hydrogen gas accumulates above the hydrogen tank, the hydrogen gas can be introduced into the power storage device storage case through the cooling inlet and the space above the hydrogen tank can be ventilated.

  In this case, the temperature adjustment device selects at least one intake port from the plurality of intake ports based on the ambient temperature of each of the plurality of intake ports and the temperature of the power storage device, and It is preferable to open the selected inlet.

  According to the present invention, the intake port selected based on the ambient temperature of each of the plurality of intake ports and the temperature of the power storage device is opened. Therefore, since the optimal inlet can be opened according to the temperature of the power storage device, the temperature of the power storage device can be accurately adjusted.

  In this case, the temperature adjustment device opens the intake port when the temperature of the power storage device is lower than a predetermined optimum temperature and lower than the temperature of at least one of the plurality of intake ports. It is preferable.

  According to the present invention, when the temperature of the power storage device is lower than the predetermined optimum temperature and lower than the temperature around at least one of the plurality of intake ports, the intake port is opened. Since the temperature around the intake port is higher than the temperature of the power storage device, the power storage device can be reliably warmed up.

  In this case, it is preferable that the fuel cell and the warm-up intake port are provided in a center console (for example, a center console 60 described later).

  According to the present invention, the fuel cell and the warm-up intake port are provided in the center console. Thereby, since the air heated by the power generation of the fuel cell can be introduced into the warm-up intake through the center console, the waste heat generated by the power generation of the fuel cell can be effectively used with a simple configuration.

According to the present invention, the storage device storage case disposed outside the passenger compartment is provided with a plurality of intake ports including a warm-up intake port, and the plurality of intake ports are selectively opened to A temperature adjustment device for adjusting the temperature was provided.
Here, since the warm-up intake port is arranged toward the fuel cell side, air warmed by the power generation of the fuel cell is introduced into the warm-up intake port. Therefore, air having different temperatures can be introduced into the power storage device storage case by selectively opening the plurality of intake ports. Thereby, the temperature of the power storage device can be adjusted without introducing air from the passenger compartment or the air conditioner.
Further, since it is not necessary to provide a duct for introducing the air in the vehicle compartment as in the prior art, the degree of freedom in the layout of the vehicle can be improved and the weight of the vehicle can be reduced.

  Hereinafter, each embodiment of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same constituent elements are denoted by the same reference numerals, and the description thereof is omitted or simplified.

[First Embodiment]
FIG. 1 is a side view showing a schematic configuration of a fuel cell vehicle 1 according to an embodiment of the present invention, and FIG. 2 is a top view of the fuel cell vehicle 1 shown in FIG. FIG. 3 is a partially enlarged view of FIG.
The fuel cell vehicle 1 includes a fuel cell 10, a battery 21 as a power storage device disposed behind the fuel cell 10, a battery box 20 as a power storage device storage case for storing the battery 21, and a rear of the battery box 20. And a hydrogen tank 50 for storing hydrogen gas to be supplied to the fuel cell 10, and a control device 40 as a temperature adjusting device for controlling the temperature of the battery 21.

The fuel cell 10, the battery box 20, and the hydrogen tank 50 are provided below the floor panel 61 serving as the floor of the passenger compartment of the fuel cell vehicle 1, that is, outside the passenger compartment.
Specifically, the floor panel 61 is provided with a center console 60 formed such that the center portion of the floor panel 61 in the vehicle width direction is convex toward the vehicle interior. The fuel cell 10 and the battery box 20 are provided in the center console 60.
In addition, the bottom side of each of the fuel cell 10, the battery box 20, and the hydrogen tank 50 is covered with an under cover 62 provided below the floor panel 61.

The fuel cell 10 has a stack structure in which, for example, several tens to several 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 10 is supplied with hydrogen gas from the hydrogen tank 50 on the anode electrode (anode) side and air containing oxygen on the cathode electrode (cathode) side by a reaction gas supply device (not shown). Then, the fuel cell 10 generates power by an electrochemical reaction. The electric power generated by the fuel cell 10 is supplied to a drive motor (not shown).

The battery 21 stores power generated by the fuel cell 10, regenerative power from the drive motor during deceleration, and the like. The electric power stored in the battery 21 is appropriately supplied to the drive motor according to the operating state.
Furthermore, this battery 21, the battery temperature sensor 24 for detecting the battery temperature T _B is the temperature of the battery 21 is connected, the detection signal of the battery temperature sensor 24 is input to the control device 40.

The battery box 20 includes a battery box main body 22 and a pipe 23 extending upward from the battery box main body 22.
The battery box main body 22 has a box shape, and the battery 21 is accommodated therein. The battery box body 22 is provided with an exhaust port 35 for discharging the internal air.
The pipe 23 is located in the center console 60, and a plurality of intake ports 30 for introducing air into the battery box 20 are provided at the tip of the pipe 23.

  Specifically, a warm-up air intake 31 is provided on the wall surface of the front end of the pipe 23 on the vehicle front side. Further, a cooling air inlet 32 is provided on the wall surface on the vehicle rear side at the tip of the pipe 23 having a position and orientation different from those of the warming air inlet 31. That is, the warm-up intake port 31 is formed facing the fuel cell 10 side, and the cooling intake port 32 is formed facing the hydrogen tank 50 side.

  An intake port temperature sensor 33 that detects an intake port temperature, which is a temperature around the warm-up intake port 31, is connected to the warm-up intake port 31. An intake port temperature sensor 34 that detects an intake port temperature that is the temperature around the intake port 32 is connected. Detection signals from these intake port temperature sensors 33 and 34 are input to the control device 40.

A switching plate 41 extending in the axial direction of the pipe 23 is provided at the tip of the pipe 23. The upper end of the switching plate 41 is rotatably supported on the upper surface of the pipe 23.
Therefore, when the switching plate 41 is rotated and the lower end side of the switching plate 41 is brought into contact with the wall surface on the front side of the vehicle, the warm-up intake port 31 is closed and the cooling intake port 32 is opened. Thus, when the front end side of the switching plate 41 is brought into contact with the wall surface on the rear side of the vehicle, the warm-up intake port 31 is opened and the cooling intake port 32 is closed.

  The exhaust port 35 is provided on the lower side of the battery box body 22. An exhaust fan 42 is provided at the exhaust port 35, and the air introduced into the battery box 20 is discharged by rotating the exhaust fan 42.

  Above the hydrogen tank 50 is a hydrogen gas retention portion 53 in which hydrogen gas leaking from the hydrogen tank 50 is retained. The hydrogen gas retention part 53 is provided with a hydrogen gas sensor 51 as a hydrogen leak detection means for detecting hydrogen gas. The detection signal of the hydrogen gas sensor 51 is input to the control device 40.

The control device 40 controls the switching plate 41 and the exhaust fan 42 based on the detection signals input from the battery temperature sensor 24 and the intake port temperature sensors 33 and 34 to adjust the temperature of the battery 21.
Specifically, first, the control device 40 rotates the exhaust fan 42. By rotating the switching plate 41 in this state, the front end side of the switching plate 41 is brought into contact with the wall surface on the front side of the vehicle, the warm-up intake port 31 is closed, and the cooling intake port 32 is opened. And the state where the front end side of the switching plate 41 is brought into contact with the wall surface on the rear side of the vehicle, and the warming-up intake port 31 is opened and the cooling intake port 32 is closed. Thereby, the inlet port for introducing air into the battery box 20 is switched, and the temperature of the battery 21 is adjusted.
Further, the control device 40 controls the switching plate 41 and the exhaust fan 42 based on the detection signal input from the hydrogen gas sensor 51 to perform ventilation.

  By the way, when the fuel cell vehicle 1 is activated, the temperature of the fuel cell 10, the temperature of the battery 21, the temperature around the warm-up intake port 31, and the temperature around the cooling intake port 32 change as follows.

  First, before starting the fuel cell vehicle 1, the temperature of the fuel cell 10, the temperature of the battery 21, the temperature around the warm-up air inlet 31, and the temperature around the cooling air inlet 32 are all the temperatures of the outside air. The temperature is almost equal. In general, the temperature of the outside air is lower than the optimum temperature at which the battery 21 can efficiently charge and discharge.

Next, when power generation by the fuel cell 10 is started after the fuel cell vehicle 1 is started up, the rate of increase in the temperature of the fuel cell 10 is higher than the rate of increase in the temperature of the battery 21, so that with time, The temperature of the fuel cell 10 is higher than the temperature of the battery 21.
Then, since the air around the fuel cell 10 is warmed by the waste heat generated by the power generation of the fuel cell 10, the temperature around the warm-up inlet 31 is the temperature around the battery 21 or the temperature around the cooling inlet 32. Higher than.

  Therefore, in this case, the control device 40 selectively opens the warm-up intake port 31, introduces air warmed by the power generation of the fuel cell 10 into the battery box 20, and warms up the battery 21.

FIG. 4 is a flowchart of an operation for adjusting the temperature of the battery 21 of the fuel cell vehicle 1.
In the following description, the temperature of the battery 21, the battery temperature T _B, the battery 21 is a predetermined temperature which can be carried out efficiently charge and discharge, and the optimum temperature T _0. In addition, the number of intake ports including the warm-up intake port 31 and the cooling intake port 32 is n, and the temperatures around these n intake ports are expressed as the intake port temperatures T _I1 , T _{I2,. In} .

In step S1, the battery temperature _{T B} by the battery temperature sensor 24, detects a plurality of inlet temperature _{T I1, T} I2 ··· _{T In} the inlet temperature sensor.

At step ST2, the optimum temperature _{T 0} is a predetermined temperature at which the battery 21 can be efficiently charged and discharged, the battery temperature _{T B,} a plurality of inlet temperature _{T I1, T I2, ··· T} In And compare.
Battery temperature _{T B} is lower than the optimum temperature _{T 0,} and the battery temperature _{T B} is more inlet temperature _{T I1,} T I2, is lower than the highest those MaxT _{an In} of · · · _{T an In} moves to step ST3, the battery temperature _{T B} is the optimal temperature _{T 0} or more, and the battery temperature _{T B} is more inlet temperature _{T I1,} T I2, is the lowest among the · · · _{T an in} If it is equal to or greater than MinT _In , the process proceeds to step ST5. If neither step ST3 nor step ST5 is applicable, the process proceeds to step ST7.

In step ST3, the heating mode is set, and the intake port that detects the highest intake port temperature MaxT _In, that is, the warm-up intake port 31 is selectively opened, and air is introduced from the intake port. Thereby, the battery 21 is warmed up (step ST4).

In step ST5, the cooling mode is set, and the intake port that detects the lowest intake port temperature MinT _In, that is, the cooling intake port 32 is selectively opened, and air is introduced from the intake port. Thereby, the battery 21 is cooled (step ST6).

  In step ST7, the current state maintenance mode is set, and all of the plurality of intake ports 30 are closed to stop the rotation of the exhaust fan 42, or the introduction of air from the intake ports that have been open until then is continued (step ST8). ).

FIG. 5 is a flowchart showing the operation when hydrogen leakage occurs from the hydrogen gas sensor 51 of the fuel cell vehicle 1.
In step ST11, the hydrogen gas sensor 51 detects a hydrogen leak and moves to step ST12.

In step ST12, the hydrogen ventilation mode is executed. In the hydrogen ventilation mode, the cooling inlet 32 that is an inlet for hydrogen ventilation is opened, and hydrogen gas accumulated above the hydrogen tank 50 is introduced into the battery box 20 through the cooling inlet 32 and ventilated.
This hydrogen ventilation mode is executed in preference to the control of all the steps ST3, ST4 and ST5 described above.

According to the fuel cell vehicle 1 of the present embodiment, the following effects are obtained.
(1) The battery box 20 disposed outside the passenger compartment is provided with a plurality of intake ports 30 including a warm-up intake port 31 and the plurality of intake ports 30 are selectively opened to control the temperature of the battery 21. A control device 40 for adjustment is provided.
Here, since the warm-up intake port 31 is arranged toward the fuel cell 10, air warmed by the power generation of the fuel cell 10 is introduced into the warm-up intake port 31. Therefore, air of different temperatures can be introduced into the battery box 20 by selectively opening the plurality of air intakes 30. Therefore, the temperature of the battery 21 can be adjusted without introducing air from the passenger compartment or the air conditioner. it can.

  (2) Since it is not necessary to provide a duct for introducing air in the vehicle compartment as in the prior art, the degree of freedom of the layout of the vehicle can be improved and the weight of the vehicle can be reduced.

  (3) Since the cooling inlet 32 having at least one of position and orientation different from that of the warm-up inlet 31 is provided, air is introduced into the battery box 20 from the cooling inlet 32 so that the battery 21 can be cooled. As a result, the battery 21 can be warmed up or cooled by the air outside the passenger compartment, and the charging / discharging efficiency of the battery 21 is improved.

(4) The battery box 20 includes the battery box main body 22 and the pipe 23, the warm-up air intake 31 is formed on the wall surface of the front end of the pipe 23 on the vehicle front side, and the cooling air intake 32 is formed. A switching plate 41 that is formed on a wall surface on the vehicle rear side at the tip of the pipe 23 and that extends in the axial direction of the pipe 23 is rotatably provided at the tip of the pipe 23.
Therefore, by rotating the switching plate 41 by the temperature adjusting device, the warm-up intake port 31 is closed and the cooling intake port 32 is opened, and the warm-up intake port 31 is opened and cooling is performed. Since the intake port 32 can be switched to the closed state, the opened intake port 30 can be easily switched.

(5) When the fuel cell vehicle 1 is started in a low temperature state, the temperature of the fuel cell 10 rises faster than the temperature of the battery 21. Therefore, when the fuel cell vehicle 1 is started in a low temperature state, the air warmed by the power generation of the fuel cell 10 is released from the warm air intake 31 into the battery box 20 by opening the warm air intake 31. The battery 21 can be warmed up efficiently.
(6) When the hydrogen gas sensor 51 detects hydrogen leakage, the control device 40 opens the cooling air inlet 32. Therefore, even if hydrogen leakage occurs and hydrogen gas accumulates above the hydrogen tank 50, the cooling air intake port The hydrogen gas can be introduced into the battery box 20 through 32 and the space above the hydrogen tank 50 can be ventilated.

(7) respectively in the ambient temperature of the plurality of intake ports 30 _{T I1,} T I2, and · · · _{T an In,} a temperature _{T B} of the battery 21, since opening the intake port 30 which is selected based on, the battery 21 The optimum inlet 30 can be opened according to the temperature, and the temperature of the battery 21 can be adjusted with high accuracy.

(8) the temperature _{T B} of the battery 21 is lower than the predetermined optimum temperature _{T 0,} and a plurality of inlet temperature _{T I1,} T I2, less than MaxT _{an In} those highest among · · · _{T an In} In this case, the intake port that detects the highest intake port temperature MaxT _In is opened. Since the temperature around the intake port is higher than the temperature of the battery 21, the battery 21 can be reliably warmed up.

  (9) Since the fuel cell 10 and the warm-up intake 31 are provided in the center console 60, the air warmed by the power generation of the fuel cell 10 can be introduced into the warm-up intake 31 through the center console 60. The waste heat generated by the power generation of the fuel cell 10 can be effectively utilized with a simple configuration.

[Second Embodiment]
FIG. 6 is a side view showing a schematic configuration of a fuel cell vehicle 1A according to the second embodiment.
In the present embodiment, the shape of the pipe 23A and the arrangement of the hydrogen gas sensors 51 and 52 are different from those in the first embodiment.
Specifically, in the present embodiment, the pipe 23A is branched and configured by the pipe 231A and the pipe 232A. Then, the front end side of the pipe 231A is extended to the vicinity of the fuel cell 10, the front end of the pipe 231A is used as a warm-up inlet 31A, and the front end side of the pipe 232A is extended above the hydrogen tank 50, The tip of the pipe 232A is a cooling inlet 32A.

Further, the space above the hydrogen tank 50 and the space above the fuel cell 10 are hydrogen gas retention portions 53 and 54, respectively. Then, hydrogen gas sensors 51 and 52 are disposed in the hydrogen gas retention portions 53 and 54, respectively.
According to this embodiment, in addition to the effects (1) to (9) described above, there are the following effects.

  (10) The upper part of the fuel cell 10 is a hydrogen gas retention part 54, and the warm-up intake port 31 </ b> A is disposed in the vicinity of the hydrogen gas retention part 54. As a result, even if hydrogen leakage occurs and hydrogen gas stays in the hydrogen gas retention portion 54, the hydrogen gas is introduced into the battery box 20 through the warm-up intake port 31 </ b> A and the space above the fuel cell 10. Can ventilate.

  (11) A hydrogen gas retention portion 53 is provided above the hydrogen tank 50, and a cooling inlet 32A is disposed in the vicinity of the hydrogen gas retention portion 53. As a result, even if hydrogen gas accumulates in the hydrogen gas retention portion 53, the hydrogen gas can be introduced into the battery box 20 through the cooling inlet 32 and the space above the hydrogen tank 50 can be ventilated.

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.
For example, in the present embodiment, the plurality of intake ports 30 are configured by two intake ports, that is, the warm-up intake port 31 and the cooling intake port 32. However, the present invention is not limited to this, and the plurality of intake ports may be three or more. You may comprise by the inlet of this.

1 is a side view showing a schematic configuration of a fuel cell vehicle according to an embodiment of the present invention. It is a top view of the fuel cell vehicle according to the embodiment. It is the elements on larger scale of FIG. It is a flowchart of the operation | movement which adjusts the temperature of the battery of a fuel cell vehicle. It is a flowchart which shows operation | movement when hydrogen leak has generate | occur | produced from the hydrogen gas sensor of the fuel cell vehicle. It is a side view which shows schematic structure of the fuel cell vehicle which concerns on 2nd Embodiment.

Explanation of symbols

1, 1A Fuel cell vehicle 10 Fuel cell 20 Battery box (storage device storage case)
21 Battery (power storage device)
22 Battery Box Body 23 Piping 30 Intake Port 31 Warm-up Intake Port 32 Cooling Inlet Port 40 Control Device (Temperature Adjustment Device)
41 Switching plate 50 Hydrogen tank 51 Hydrogen gas sensor (hydrogen detection means)
60 Center console

Claims (10)

A fuel cell vehicle comprising a fuel cell provided outside a passenger compartment, a power storage device disposed behind the fuel cell, and a power storage device storage case for storing the power storage device,
The power storage device storage case is formed with a plurality of intake ports including a warm-up intake port facing the fuel cell side,
A fuel cell vehicle, further comprising a temperature adjustment device that selectively opens the plurality of intake ports to adjust the temperature of the power storage device.   2. The fuel cell vehicle according to claim 1, wherein the plurality of intake ports include a cooling intake port having at least one of position and orientation different from that of the warm-up intake port. The power storage device storage case includes a case main body that covers the power storage device, and a pipe that extends from the case main body,
The warm-up intake port is formed on a wall on the vehicle front side at the tip of the pipe,
The cooling inlet is formed on a wall on the vehicle rear side at the tip of the pipe,
A switching plate extending in the axial direction of the pipe is rotatably provided at the tip of the pipe,
The temperature adjusting device rotates the switching plate to close the warm-up air intake and open the cooling air intake; and to open the warm-up air intake and open the cooling air The fuel cell vehicle according to claim 2, wherein the fuel cell vehicle can be switched between a state in which the intake port is closed.   4. The fuel cell vehicle according to claim 1, wherein, when the fuel cell vehicle is started in a low temperature state, the temperature adjustment device opens the warm-up intake port. 5. A hydrogen leak detecting means for detecting hydrogen gas provided in a hydrogen gas retention portion of the vehicle;
One of the plurality of intake ports is disposed in the vicinity of the hydrogen gas retention portion,
3. The fuel cell vehicle according to claim 2, wherein when the hydrogen leak is detected by the hydrogen leak detection means, the temperature adjusting device opens an intake port disposed in the vicinity of the hydrogen gas retention portion. The hydrogen gas retention part is provided above the fuel cell,
The fuel cell vehicle according to claim 5, wherein an intake port disposed in the vicinity of the hydrogen gas retention portion is the warm-up intake port. A hydrogen tank for storing hydrogen gas;
The hydrogen gas retention part is provided above the hydrogen tank,
The fuel cell vehicle according to claim 5, wherein an intake port disposed in the vicinity of the hydrogen gas retention portion is the cooling intake port.   The temperature adjusting device selects at least one intake port from the plurality of intake ports based on the ambient temperature of each of the plurality of intake ports and the temperature of the power storage device, and selects the selected intake air The fuel cell vehicle according to any one of claims 1 to 7, wherein the mouth is opened.   The temperature adjusting device opens the intake port when the temperature of the power storage device is lower than a predetermined optimum temperature and lower than the temperature of at least one of the plurality of intake ports. The fuel cell vehicle according to claim 8.   The fuel cell vehicle according to any one of claims 1 to 9, wherein the fuel cell and the warm-up intake port are provided in a center console.

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