JP2001163040A - Power source device of motor for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently supply fuel to a fuel cell and a cooling medium to a superconducting battery, and to effectively utilize the cooling by the cooling medium of the superconducting battery for cooling a cabin by mounting the comparatively large superconducting battery at a lower part of the cabin causing no hindrance there. SOLUTION: In this power source device of a motor for a vehicle using the superconducting battery charged by the power from a fuel cell as a power source, a means for supplying hydrogen produced by supplying the power from a solar battery to a water decomposing device for the electrolysis of water, to the fuel cell, is mounted, the superconducting battery to which the cooling medium is supplied, is accommodated in a heat insulated case provided with an opening and closing part, the heat insulated case is mounted at a lower part of a cabin, and the cabin can be cooled by opening the opening and closing part of the heat insulated case.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a vehicle motor used as a motor power supply in an electric vehicle, a hybrid vehicle using an engine and a motor in common, and the like.

[0002]

2. Description of the Related Art In recent years, an electric vehicle using a fuel cell has been developed as a motor power supply device.

Further, a superconducting battery using a superconducting material together with a cooling medium has been developed as a device capable of efficiently storing DC power (see Japanese Patent Application Laid-Open No. 5-205940).

Conventionally, as a power supply device for an electric vehicle, power generated by a fuel cell is temporarily stored in a superconducting battery, and power is extracted from the superconducting battery as needed.

[0005]

The problem to be solved is that when such a power supply device for a motor is mounted on a vehicle, a fuel supply source for a fuel cell and a supply source of a cooling medium for a superconducting battery are provided. Separate installation is required, and the space factor is deteriorated. In addition, if both sources are used, a liquid hydrogen storage unit having a large capacity is required.

In order to allow the superconducting battery to be charged with electric power sufficient for driving the motor, the superconducting battery itself must be large and installed together with the cooling medium supply unit. It is becoming difficult.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a power supply device for a vehicle motor powered by a superconducting battery which is charged by electric power generated by a fuel cell, and supplies fuel to the fuel cell and cools the superconducting battery. Water splitting, which efficiently supplies the medium and installs the superconducting battery in the optimal location of the vehicle and uses the power generated by the solar cells to electrolyze the water in order to make effective use of the cooling by the cooling medium In addition to providing a means for supplying hydrogen generated by giving to the device to the fuel cell, the superconducting battery to which the cooling medium is supplied is housed in a heat insulating case provided with an opening / closing section, and the heat insulating case is placed in the lower part of the vehicle compartment. The interior of the vehicle can be cooled by opening the opening and closing part of the heat insulating case.

The present invention also relates to a power supply device for a motor for a vehicle, in which a generator driven by the motor is provided in order to increase the power storage efficiency of the superconducting battery, and the generated output is regenerated to the superconducting battery. I try to make it.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A power supply device for a vehicle motor according to the present invention, as shown in FIG. A fuel cell 3 that generates electricity using hydrogen generated by electrolysis of water as a fuel, and a superconducting battery 4 that is charged by the power generated by the fuel cell 3 and supplies power to a motor 6 for driving a vehicle. And a liquid hydrogen storage unit 5 for supplying hydrogen for cooling to the superconducting battery 4.

Further, in the power supply device for the vehicle motor, the power generated by the solar cell 1 is charged to the superconducting battery 4 so as to increase the power storage efficiency.

Further, a generator 7 driven by a motor 6 is provided to regenerate the generated output to the superconducting battery 4 so as to increase the power storage efficiency of the superconducting battery 4.

Further, water generated by the fuel cell 3 is supplied to a water storage unit in the water splitting device 2.

Further, in the present invention, the superconducting battery 4 is cooled to supply the vaporized hydrogen to the fuel cell 3 so that the fuel supply to the fuel cell 3 and the superconducting battery 4
The supply of the cooling medium to the cooling medium is efficiently performed.

In the present invention, the liquid hydrogen storage unit 5
Without providing the fuel cell, the hydrogen generated by the water splitting device 2 may be once sent to the superconducting battery 4 to cool the same, and then the cooled vaporized hydrogen may be supplied to the fuel cell 3. It is possible.

The present invention relates to a power supply device for a motor for a vehicle having such a configuration. In particular, as shown in FIG. 2, a superconducting battery 4 is provided with a plurality of opening / closing portions 10 on a top surface together with a liquid hydrogen storage portion 5. After being housed in the heat insulating case 9, the heat insulating case 9 is disposed below the cabin of the vehicle 11, and the opening and closing portion 10 of the heat insulating case 9 is opened to cool the vehicle interior. .

By employing such a structure, the relatively large superconducting battery 4 is installed together with the liquid hydrogen storage unit 5 in the lower part of the vehicle compartment which does not interfere with the superconducting battery 4. The cooling can be effectively used for cooling in the passenger compartment.

Since the liquid hydrogen storage unit 5 is provided at the lower part of the passenger compartment, even if the liquid hydrogen storage unit 5 is destroyed by an impact in the event of a collision of the vehicle, the occupant can store the liquid hydrogen. No more taking a bath. And
The occurrence of fire can be effectively prevented by the liquid hydrogen.

If only the cooling of the superconducting battery 4 is to be effectively used, only the superconducting battery 4 is housed in the heat insulating case 9 provided at the lower part of the vehicle, and is separately installed in a safe external place. Needless to say, liquid hydrogen for cooling may be sent from the liquid hydrogen storage unit 5 through the pipe into the case.

FIG. 3 shows another configuration example of the power supply device for a vehicle motor according to the present invention. In this case, the power supply device is made of a hydrogen storage alloy that cools the superconducting battery 4 to absorb and store the vaporized hydrogen. The hydrogen storage device 8 is provided so that hydrogen can be supplied to the fuel cell 3 from the hydrogen storage device 8 whenever necessary.

[0020]

As described above, the present invention relates to a power supply device for a vehicle motor powered by a superconducting battery charged by electric power generated by a fuel cell. In addition to providing a means for supplying hydrogen generated by giving to the device to the fuel cell, the superconducting battery to which the cooling medium is supplied is housed in a heat insulating case provided with an opening / closing section, and the heat insulating case is placed in the lower part of the vehicle compartment. The interior of the vehicle is cooled by opening the opening and closing part of the heat insulating case, so that the fuel supply to the fuel cell and the supply of the cooling medium to the superconducting battery can be performed efficiently. In addition, there is an advantage that the superconducting battery can be installed at an optimal place of the vehicle, and the cooling by the cooling medium can be effectively used.

Further, in the power supply device for a vehicle motor according to the present invention, a generator driven by the motor is provided to regenerate the generated output to the superconducting battery, and the superconducting battery is mainly charged. This has an excellent advantage that the power storage efficiency of the superconducting battery can be effectively increased while suppressing the fuel consumption of the fuel cell.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one configuration example of a power supply device for a vehicle motor according to the present invention.

FIG. 2 is a simplified diagram showing an example of a state in which each component of a power supply device for a vehicle motor according to the present invention is disposed in a vehicle.

FIG. 3 is a block diagram showing another configuration example of the power supply device for the vehicle motor according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Solar cell 2 Water splitting device 3 Fuel cell 4 Superconducting battery 5 Liquid hydrogen storage part 6 Motor 7 Generator 8 Hydrogen storage device 8 Heat insulation case 10 Opening / closing part

Claims (5)

[Claims] In a power supply device for a vehicle motor powered by a superconducting battery charged by electric power generated by a fuel cell, hydrogen generated by applying electric power generated by a solar cell to a water splitter for electrolyzing water. Is provided to the fuel cell, and the superconducting battery to which the cooling medium is supplied is housed in a heat insulating case provided with an opening / closing section. A power supply device for a vehicle motor, wherein the interior of a vehicle compartment can be cooled by opening an opening / closing portion of a case. 2. The power supply device for a vehicle motor according to claim 1, wherein the water generated by the fuel cell is supplied to a water splitting device. 3. The power supply device for a vehicle motor according to claim 1, wherein the superconducting battery is cooled to supply vaporized hydrogen to the fuel cell. 4. A power supply device for a motor for a vehicle according to claim 1, wherein a generator driven by the motor is provided, and the generated output is regenerated to the superconducting battery. 5. The power supply device for a vehicle motor according to claim 1, wherein the superconducting battery is charged by the electric power generated by the solar cell.