WO2024122010A1

WO2024122010A1 - Power supply system

Info

Publication number: WO2024122010A1
Application number: PCT/JP2022/045215
Authority: WO
Inventors: 豊嗣近藤
Original assignee: 株式会社辰巳菱機
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2024-06-13
Also published as: WO2024122073A1; WO2024122074A1

Abstract

The present invention provides a power supply system capable of efficiently supplying power.　The power supply system comprises a power generation unit having a first power generation device, a fixed power storage unit having a first fixed power storage device for storing power obtained by the first power generation device, and a movable power storage unit for storing power obtained by the first power generation device and power received from the first fixed power storage device. The movable power storage unit has an input terminal, and an output terminal for connecting to external electrical equipment. The movable power storage unit has wheels for a movable power storage device. Power is supplied to the movable power storage unit via the input terminal and a terminal provided in a housing accommodating the fixed power storage unit and electrically connected to the first fixed power storage device.

Description

Power Supply System

The present invention relates to a power supply system, etc.

Conventionally, as in Patent Document 1, a charging/discharging device for electric vehicles has been proposed that stores power and supplies the stored power to electric vehicles, etc.

JP 2015-208132 A

However, the storage batteries were fixed to the housing of the electric vehicle, etc.

The object of the present invention is therefore to provide a power supply system capable of supplying power efficiently.

The power supply system of the present invention comprises a power generation unit having a first power generation device, a fixed storage unit having a first fixed storage device that stores power obtained by the first power generation device, and a movable storage unit that stores the power obtained by the first power generation device and the power from the first fixed storage device.
The movable power storage unit has an input terminal and an output terminal for connection to an external electric device.
The movable power storage unit includes a movable power storage device wheel.
A terminal is provided in a housing that accommodates the fixed power storage unit, and is electrically connected to the first fixed power storage device, and power is supplied to the movable power storage unit via the input terminal.

The movable power storage unit can be charged by supplying power via an input terminal or the like.
Moreover, the movable power storage unit can be moved on a surface.
Therefore, the movable power storage unit can be moved independently to the vicinity of an electrical device located away from the housing to supply power to the electrical device. That is, charging/discharging can be efficiently performed using the movable power storage unit.

Preferably, the input terminal and the output terminal are configured separately.
The input terminal and the output terminal are provided at different height positions.

It is easy to prevent incorrect wiring between the charging input terminal and the discharging output terminal.

More preferably, the input terminal is located at a higher position than the output terminal.

　It is easy to increase the storage space inside the housing.

More preferably, the housing is a housing for an electric vehicle.
The electric vehicle includes a tailgate lifting device.
A stopper is provided in an area of the tailgate lifting device that comes into contact with the movable power storage unit wheels in order to hold the movable power storage unit in a state in which the movable power storage unit cannot move horizontally.
The tailgate lifting device holds the movable power storage unit such that, when the movable power storage unit is lifted and stored in the housing, the input terminal is connected to the terminal.

The movable power storage unit can be easily moved to a predetermined position inside the housing by using a tailgate lifting device provided in the electric vehicle.
By arranging terminals etc. at a high position inside the housing, it is possible to make more effective use of the space inside the housing compared to a configuration in which the terminals etc. are arranged at a medium height inside the housing.

Also, preferably, a carriage separate from the housing is provided.
The movable power storage unit is placed on the cart.
When the movable power storage unit is placed on the cart, the input terminal and the terminal are positioned at the same height.

With the movable power storage unit held on the cart, it becomes possible to move the movable power storage unit to a position away from the housing.

Also, preferably, a carriage separate from the housing is provided.
The cart holds the operating power storage unit such that, when housed in the housing, the input terminal is connected to the terminal.
Among the wheels of the dolly, the wheel on the side facing the housing is a retractable wheel.
Before the dolly is retracted into the housing, the retractable wheels function as the front wheels of the dolly.
When the dolly is stored in the housing, the retractable wheels are folded.

With the movable power storage unit held by the dolly, it becomes possible to move the movable power storage unit to a position away from the housing.
In addition, by folding the retractable wheels, the movable power storage unit can be easily moved to the inside of the housing.

In addition, preferably, the movable storage unit has a dual-purpose terminal that is used as both the input terminal and the output terminal.

More preferably, at least a part of an electric wire connecting the power storage device of the movable power storage unit and the dual-purpose terminal is made of an elastic material.
The dual-purpose terminal is movably attached to a case of the movable power storage unit.

　Easy connection to terminals of external electrical devices.

In a preferred embodiment, the movable power storage unit includes a plurality of power storage devices.
The input terminal and the plurality of power storage devices are connected in parallel.
The output terminal and the plurality of power storage devices are connected in parallel.

More preferably, the movable power storage unit includes a control device and a switch.
The control device controls the switches so that the plurality of power storage devices are charged at different times.

It is easier to prevent backflow and short circuits during charging caused by differences in the charging rate of each storage device.

In addition, preferably, the movable storage unit includes a holder that detachably holds each of the multiple storage devices.

By removing it, it is easy to replace the storage device alone.

In addition, preferably, the movable power storage unit includes an information transmission unit that transmits information regarding at least the charging rates of the multiple power storage devices.

It becomes possible to know the status of the movable power storage unit 50 using external devices, etc.

In a preferred embodiment, the movable power storage unit includes a plurality of power storage devices and a switching unit.
The input terminal and the plurality of power storage devices are connected in series.
The output terminal and the plurality of power storage devices are connected in parallel.
The switching unit switches between an electrical connection between the input terminal and the plurality of power storage devices and an electrical connection between the output terminal and the plurality of power storage devices.

In a preferred embodiment, the fixed power storage unit includes the first fixed power storage device, a second power storage device, and a third power storage device.
The first fixed power storage device stores electric power from at least the first power generation device of the power generation unit that is disposed away from the housing.
The second fixed power storage device stores electric power from a second power generation device of the power generation unit that is attached to the housing or disposed away from the housing.
The third fixed power storage device is used to drive a motor of the electric vehicle.
The power stored in the first fixed power storage device is stored in the third fixed power storage device via a quick charger, a quick charge cable, and a quick charge terminal electrically connected to the third fixed power storage device.
The power stored in the second fixed storage device is stored in the third fixed storage device via a normal charger, a normal charging cable, and a normal charging input terminal electrically connected to the third fixed storage device.

Electric power from a power generation device that has a large output and is not restricted in installation space, such as outside a housing, is stored in the first fixed power storage device, which has a large storage battery capacity.
Electric power from a power generation device that has a small output and is subject to many installation space restrictions, such as on the top surface of a housing, is stored in a second fixed power storage device that has a small storage battery capacity.
This makes it possible to efficiently charge the battery by selectively using two fixed power storage devices having different storage battery capacities depending on the difference in output.

Electricity is temporarily stored in the first fixed storage device and the second fixed storage device. Therefore, without complicating the control of power supply from the third fixed storage device to the motor, and without complicating the control of power supply from the third fixed storage device to the motor, it is possible to immediately supply power from the first fixed storage device to the third fixed storage device via a quick charging cable. Also, it is possible to immediately supply power from the second fixed storage device to the third fixed storage device via a normal charging cable. This makes it possible to use the first fixed storage device, etc. as a battery (backup power source) for the third fixed storage device.

The first fixed power storage device and the third fixed power storage device are electrically connected via a quick-charge cable and a quick-charge input terminal. Therefore, unless a quick-charge cable is connected to the quick-charge input terminal, power will not be mistakenly supplied from the first fixed power storage device to the third fixed power storage device. This reduces the possibility of damage to the third fixed power storage device, which is fixed to the housing and difficult to remove.

The second fixed power storage device and the third fixed power storage device are electrically connected via a normal charging cable and a normal charging input terminal. Therefore, unless a normal charging cable is connected to the normal charging input terminal, power will not be mistakenly supplied from the second fixed power storage device to the third fixed power storage device. This reduces the possibility of damage to the third fixed power storage device, which is fixed to the housing and difficult to remove.

In a preferred embodiment, the fixed power storage unit includes the first fixed power storage device and a third fixed power storage device.
The first fixed power storage device stores electric power from at least the first power generation device of the power generation unit that is disposed away from the housing.
The third fixed power storage device is used to drive a motor of the electric vehicle.
The power stored in the first fixed power storage device is stored in the third fixed power storage device via a quick charger, a quick charge cable, and a quick charge terminal electrically connected to the third fixed power storage device.

More preferably, the power stored in the third fixed power storage device is supplied to the external electrical device via the quick charging terminal and a power supply cable.

The third fixed power storage device is mainly used to drive the motor.
However, the battery capacity is larger than those of the first fixed power storage device and the second fixed power storage device. Therefore, in the event of a power outage or other power loss, the electric vehicle can be moved to the site and emergency power can be supplied to external electrical equipment, such as elevators in apartment buildings, via the power supply cable and the quick-charging input terminal.

As described above, the present invention can provide a power supply system that can supply power efficiently.

FIG. 2 is a configuration diagram of the power supply system according to the first embodiment before a sixth terminal and an eleventh terminal are connected. FIG. 2 is a configuration diagram of a movable power storage unit according to the first embodiment. FIG. 11 is a diagram illustrating the configuration of the power supply system after the sixth terminal and the eleventh terminal are connected in the first embodiment. FIG. 11 is a configuration diagram of a power supply system according to a second embodiment before a sixth terminal and an eleventh terminal are connected. FIG. 11 is a diagram illustrating a configuration of a power supply system according to a second embodiment after a sixth terminal and an eleventh terminal are connected. FIG. 13 is a diagram showing the configuration of a movable power storage unit during charging in the third embodiment. FIG. 13 is a diagram showing the configuration of a movable power storage unit during discharging in the third embodiment. FIG. 13 is a configuration diagram of a movable power storage unit when a first power storage device is being charged in the fourth embodiment. FIG. 13 is a configuration diagram of a movable power storage unit when a first power storage device is being charged in a fifth embodiment. 13 is a configuration diagram of a movable power storage unit when a first power storage device and a fourth power storage device are being discharged in the fifth embodiment. FIG.

The first embodiment will be described below with reference to the drawings.
The embodiments are not limited to the following embodiments. In principle, the contents described in one embodiment are also applicable to other embodiments. The embodiments and modifications can be combined as appropriate.

(Power supply system 1)
The power supply system 1 of the first embodiment includes a power generation unit 10, a terminal unit 20, a conversion unit 30, a fixed power storage unit 40, a movable power storage unit 50, a holding unit 60, a charging unit 70, and a power unit 80 (see FIGS. 1 to 3).

(Housing 2)
The housing 2 is a housing for an electric vehicle.
The housing 2 accommodates at least a terminal unit 20 , a conversion unit 30 , a fixed power storage unit 40 , and a charging unit 70 .
Of the power generating section 10 , the second DC power generating device 12 is mounted on the housing 2 .
Of the power generating section 10 , the first DC power generating device 11 , the first AC power generating device 13 , and the second AC power generating device 14 are disposed away from the housing 2 .
During charging, the movable power storage unit 50 is housed in the housing 2 .

(Power generation unit 10)
The power generation section 10 has a first power generation device (a first DC power generation device 11, a first AC power generation device 13) and a second power generation device (a second DC power generation device 12, a second AC power generation device 14).

The first DC power generation device 11 is a power generation device (renewable energy-derived power generation device) that generates DC power based on natural energy (renewable energy), such as a solar power generation device.
The first DC power generating device 11 is provided outside the housing 2 .
The output of the first DC power generating device 11 is greater than the output of the second DC power generating device 12 .
When the second terminal 22 and the first DC power generating device 11 are connected, the first DC power generating device 11 is always in a state in which it can generate power.
The electric power obtained in the first DC power generation device 11 is supplied to the first fixed power storage device 41 and the like via the second terminal 22 and the first conversion device 31 .
The first DC power generating device 11 includes a reverse current prevention device such as a diode.
When the first DC power generation device 11 is a solar power generation device, the first DC power generation device 11 may include an angle adjustment device so that the light receiving surface is nearly perpendicular to the sun's rays.

The second DC power generation device 12 is a power generation device (renewable energy-derived power generation device) that generates DC power based on natural energy (renewable energy), such as a solar power generation device.
The second DC power generating device 12 is placed on the upper surface of the housing 2 .
The second DC power generating device 12 is always in a state where it is capable of generating power.
The electric power obtained by the second DC power generating device 12 is supplied to the second fixed power storage device 42 and the like via the second conversion device 32 .
The second DC power generating device 12 includes a reverse current prevention device such as a diode.
When the second DC power generation device 12 is a solar power generation device, the second DC power generation device 12 may include an angle adjustment device so that the light receiving surface is nearly perpendicular to the sun's rays.

The first AC power generating device 13 is a power generating device, such as an LP gas power generating device, that generates three-phase AC power based on kinetic energy obtained by an internal combustion engine or an external combustion engine.
The first AC power generating device 13 is provided outside the housing 2 .
The output of the first AC power generating device 13 is greater than the output of the second AC power generating device 14 .
The third terminal 23 is connected to the first AC power generating device 13, and the first AC power generating device 13 is made capable of generating power when, for example, the power supplied from the first DC power generating device 11 or the like is insufficient.
The electric power obtained by the first AC power generating device 13 is supplied to the first fixed power storage device 41 and the like via the third terminal 23 and the first conversion device 31 .

The connection between the third terminal 23 and the first AC power generating device 13 may be performed when the first fixed power storage device 41 or the like is used for a load test of the first AC power generating device 13 .
In this case, the first conversion device 31, the first fixed power storage device 41, the third fixed power storage device 43, the movable power storage unit 50, the quick charger 72, etc. are used as loads (resistances) for the load test.

The first AC power generation device 13 may be connected to the first conversion device 31 after converting the flow of electricity from the first AC power generation device 13 from AC to DC.
In this case, the third terminal 23 is connected between the second terminal 22 and the first DC/AC inverter 31a, not between the first DC/AC inverter 31a and the first AC/DC converter 31b.

The second AC power generation device 14 is a power generation device (renewable energy-derived power generation device) that generates single-phase AC power based on natural energy (renewable energy), such as a wind power generation device or a wave power generation device.
The second AC power generating device 14 is provided outside the housing 2 .
When the first terminal 21 and the second AC power generating device 14 are connected, the second AC power generating device 14 is always in a state in which it can generate power.
However, if the second AC generating device 14 is a wind power generating device and the wind force received by the second AC generating device 14 exceeds a predetermined wind force, the second AC generating device 14 is put into a state in which it cannot generate power.
The electric power obtained by the second AC power generating device 14 is supplied to the second fixed power storage device 42 and the like via the first terminal 21 and the second conversion device 32 .

The second AC power generation device 14 may be connected to the second conversion device 32 after converting the flow of electricity from the second AC power generation device 14 from AC to DC.
In this case, the first terminal 21 is connected between the second AC power generation device 14 and the second DC/AC inverter 32a, not between the second DC/AC inverter 32a and the second AC/DC converter 32b.

(Terminal portion 20)
The terminal portion 20 has a first terminal 21, a second terminal 22, a third terminal 23, a fourth terminal 24, a fifth terminal 25, a sixth terminal 26, a seventh terminal 27, and an eighth terminal 28.
Each terminal of the terminal section 20 is provided on the outer wall or inside of the housing 2 .

The first terminal 21 is detachably connected to the second AC power generating device 14 via a cable.
The first terminal 21 is connected to a second DC/AC inverter 32 a and a second AC/DC converter 32 b of the second conversion device 32 .
The first terminal 21 is an input terminal for receiving electric power from the second AC power generating device 14 .

The second terminal 22 is detachably connected to the first DC power generating device 11 via a cable.
The second terminal 22 is connected to a first DC/AC inverter 31 a of the first conversion device 31 .
The second terminal 22 is an input terminal for electric power from the first DC power generating device 11 .

The third terminal 23 is detachably connected to the first AC power generating device 13 via a cable.
The third terminal 23 is connected to a first DC/AC inverter 31 a and a first AC/DC converter 31 b of the first conversion device 31 .
The third terminal 23 is an input terminal for receiving electric power from the first AC power generating device 13 .

The fourth terminal 24 is connected to a normal charger 71 .
The fourth terminal 24 is detachably connected to the seventh terminal 27 via a normal charging cable 73 .
The fourth terminal 24 is an output terminal for electric power from the second DC power generating device 12 and the like via the normal charger 71 .

The fifth terminal 25 is connected to a quick charger 72 .
The fifth terminal 25 is detachably connected to the eighth terminal 28 via a quick charging cable 74 .
The fifth terminal 25 is an output terminal for electric power from the first DC power generating device 11 and the like via the rapid charger 72 .

The sixth terminal 26 is connected to the first AC/DC converter 31 b of the first conversion device 31 and the first fixed power storage device 41 .
The sixth terminal 26 is detachably connected to the input terminal (eleventh terminal 51) of the movable power storage unit 50.
The sixth terminal 26 is an output terminal for electric power from the first fixed power storage device 41 and the like.

The seventh terminal 27 is connected to the third fixed power storage device 43 .
The seventh terminal 27 is detachably connected to the fourth terminal 24 via a normal charging cable 73 .
The seventh terminal 27 is an input terminal (input terminal for normal charging) for electric power from the second DC power generating device 12 and the like via the normal charger 71 and the normal charging cable 73 .

The eighth terminal 28 is connected to the third fixed power storage device 43 .
The eighth terminal 28 is detachably connected to the fifth terminal 25 via a quick charging cable 74 .
In this case, that is, when the quick charging cable 74 is connected to the eighth terminal 28, the eighth terminal 28 is an input terminal (quick charging input terminal) for power from the first DC power generation device 11, etc. via the quick charging cable 74 and the quick charging cable 74.

Furthermore, the eighth terminal 28 is detachably connected to an external load (not shown) via a power supply cable 75 .
In this case, that is, when the power supply cable 75 is connected to the eighth terminal 28 , the eighth terminal 28 is an output terminal for power from the third fixed power storage device 43 .

(Conversion unit 30)
The conversion unit 30 includes a first conversion device 31 and a second conversion device 32 .

The first conversion device 31 includes a first DC/AC inverter 31a and a first AC/DC converter 31b.

The first DC/AC inverter 31a converts the flow of electricity from the first DC power generation device 11 from DC to three-phase AC.
The first AC/DC converter 31b is configured as a bidirectional AC/DC converter.
The first AC/DC converter 31b converts the flow of electricity from the first DC/AC inverter 31a and the first AC power generation device 13 from three-phase AC to DC.
The first AC/DC converter 31b converts the flow of electricity from the first fixed power storage device 41 from direct current to three-phase alternating current.

The power obtained by the first DC power generation device 11 is supplied to the first fixed power storage device 41 via the first DC/AC inverter 31a and the first AC/DC converter 31b, or is supplied to the third power storage device 43 via the first DC/AC inverter 31a, the quick charger 72, and the quick charging cable 74, or is supplied to the power storage device group 53 of the movable power storage unit 50 via the first DC/AC inverter 31a and the first AC/DC converter 31b.

The power obtained by the first AC power generating device 13 is supplied to the first fixed power storage device 41 via the first AC/DC converter 31b, or to the third power storage device 43 via the quick charger 72 and quick charging cable 74, or to the power storage device group 53 of the movable power storage unit 50 connected to the sixth terminal 26 via the first AC/DC converter 31b.

The second conversion device 32 includes a second DC/AC inverter 32a and a second AC/DC converter 32b.

The second DC/AC inverter 32a converts the flow of electricity from the second DC power generation device 12 from DC to single-phase AC.
The second AC/DC converter 32b is configured as a bidirectional AC/DC converter.
The second AC/DC converter 32b converts the flow of electricity from the second DC/AC inverter 32a and the second AC power generation device 14 from single-phase AC to DC.
The second AC/DC converter 32b converts the flow of electricity from the second fixed power storage device 42 from direct current to single-phase alternating current.

The power generated by the second DC power generation device 12 is supplied to the second fixed power storage device 42 via the second DC/AC inverter 32a and the second AC/DC converter 32b, or is supplied to the third power storage device 43 via the second DC/AC inverter 32a, a normal charger 71, and a normal charging cable 73, or is supplied to the electrical equipment of the electric vehicle including the housing 2 (such as the first holding unit 61) via the second DC/AC inverter 32a and the second AC/DC converter 32b.

The power obtained by the second AC generating device 14 is supplied to the second fixed power storage device 42 via the second AC/DC converter 32b, or to the third power storage device 43 via the normal charger 71 and normal charging cable 73, or to the electrical equipment of the electric vehicle including the housing 2 (such as the first holding part 61) via the second AC/DC converter 32b.

(Fixed power storage unit 40)
The fixed power storage unit 40 has a first fixed power storage device 41 , a second fixed power storage device 42 , and a third fixed power storage device 43 .
Each of the fixed power storage devices of fixed power storage unit 40 is fixed inside housing 2 .

The first fixed power storage device 41 has a charging device and a power storage device that store the power supplied from the first DC power generation device 11 and the first AC power generation device 13.
The electric power stored in the first fixed power storage device 41 is supplied to the third fixed power storage device 43 via a quick charger 72 and a quick charging cable 75 .
Furthermore, the power stored in first fixed power storage device 41 is supplied to power storage device group 53 of movable power storage unit 50 connected to sixth terminal 26 .

The second fixed power storage device 42 has a charging device and a power storage device that store the power supplied from the second DC power generation device 12 and the second AC power generation device 14.
The electric power stored in the second fixed power storage device 42 is supplied to the third fixed power storage device 43 via a normal charger 71 and a normal charging cable 73 .
Moreover, the electric power stored in the second fixed power storage device 42 is supplied to electrical equipment (such as the first holding unit 61 ) of the electric vehicle including the housing 2 .

The third fixed power storage device 43 has a charging device and a power storage device that store the power supplied from the power generation unit 10, the second fixed power storage device 42, and the first fixed power storage device 41.
The electric power stored in the third fixed power storage device 43 is supplied to the motor 81 .

The battery capacity of the third fixed storage device 43 is greater than that of the first fixed storage device 41. The battery capacity of the first fixed storage device 41 is greater than that of the second fixed storage device 42. For example, the battery capacity of the second fixed storage device 42 is 15 kWh, the battery capacity of the first fixed storage device 41 is 40 kWh, and the battery capacity of the third fixed storage device 43 is 125 kWh.

(Movable power storage unit 50)
The movable power storage unit 50 has an eleventh terminal 51 , a twelfth terminal 52 , a power storage device group 53 , movable power storage device wheels 54 , and a switching unit 55 .

The eleventh terminal 51 is detachably connected to the sixth terminal 26 .
The eleventh terminal 51 is connected in parallel to the first to fourth power storage devices 53 a to 53 d of the power storage device group 53 .
The eleventh terminal 51 is an input terminal for electric power from the first fixed power storage device 41 and the like.

The twelfth terminal 52 is connected in parallel to the first to fourth power storage devices 53 a to 53 d of the power storage device group 53 .
The twelfth terminal 52 is connected to an external electrical device (not shown).
The twelfth terminal 52 is an output terminal for electric power from the power storage device group 53 .

It is preferable that the eleventh terminal 51 is provided at a position different in height from the twelfth terminal 52 .
For example, the eleventh terminal 51 is provided at a higher position than the twelfth terminal 52 .
Specifically, the eleventh terminal 51 is provided on an upper portion of a housing of the movable power storage unit 50 , and the twelfth terminal 52 is provided on a side portion of a case 50 a of the movable power storage unit 50 .

The power storage device group 53 includes a charging device and a power storage device that stores electric power supplied from the first fixed power storage device 41 and the like.
The power storage device group 53 includes a first power storage device 53a, a second power storage device 53b, a third power storage device 53c, and a fourth power storage device 53d as the power storage devices.
However, the number of power storage devices is not limited to four.
The electric power stored in the power storage device group 53 is supplied to an external electric device connected to the twelfth terminal 52 .

In other words, when the sixth terminal 26 is connected to the eleventh terminal 51, power is supplied from the first fixed storage device 41 etc. to the storage device group 53, and when an external electrical device is connected to the twelfth terminal, power is supplied from the storage device group 53 to the external electrical device.

The movable power storage device wheels 54 are wheels provided on the lower part of the power storage device group 53 .
By rotating the movable power storage device wheels 54, the movable power storage unit 50 becomes movable.

The switching unit 55 has a first switch 55a and a second switch 55b.
When the first switch 55 a is in the on state, power can be supplied from the first fixed power storage device 41 and the like to the power storage device group 53 via the eleventh terminal 51 .
When the second switch 55 b is in the on state, power can be supplied from the power storage device group 53 to external electrical equipment via the twelfth terminal 52 .

It is preferable to provide a connection detection member and a control member so that the first switch 55 a is turned on when the sixth terminal 26 is connected to the eleventh terminal 51 .
It is preferable to provide a connection detection member and a control member so that the second switch 55b is turned on when an external electrical device is connected to the twelfth terminal 52.
The first switch 55a and the second switch 55b are controlled so that both switches are not turned on at the same time, that is, so that at least one of them is turned off.

(Holding portion 60)
The holding portion 60 of the first embodiment has a first holding device (tailgate lifting device) 61 .
When the movable power storage unit 50 is lifted up and stored in the housing 2 , the first holding device 61 holds the movable power storage unit 50 such that the eleventh terminal 51 is connected to the sixth terminal 26 .
In order to hold movable power storage unit 50 while preventing horizontal movement of movable power storage unit 50 , a stopper (first stopper 61 a ) is provided in an area of first holding device 61 that comes into contact with movable power storage unit wheels 54 .
When the movable power storage unit 50 is lifted up and stored in the housing 2 , the first holding device 61 holds the movable power storage unit 50 such that the eleventh terminal 51 is connected to the sixth terminal 26 .

(Charging unit 70)
The charging unit 70 has a normal charger 71 , a rapid charger 72 , a normal charging cable 73 , a rapid charging cable 74 , and a power supply cable 75 .

The normal charger 71 connects the second DC/AC inverter 32 a , the second AC/DC converter 32 b , and the first terminal 21 .
The normal charger 71 is connected to the fourth terminal 24 .
The normal charger 71 converts the flow of electricity from the second DC/AC inverter 32a, the second AC/DC converter 32b, and the second AC power generation device 14 from single-phase AC to DC.
In addition, the normal charger 71 converts the power from the second DC/AC inverter 32a, the power from the second AC/DC converter 32b, and the power from the second AC power generation device 14 into a current and voltage suitable for charging the third fixed power storage device 43, and supplies it to the third fixed power storage device 43 via a normal charging cable 73 or the like.

The quick charger 72 is connected to the first DC/AC inverter 31 a , the first AC/DC converter 31 b , and the third terminal 23 .
The quick charger 72 is connected to the fifth terminal 25 .
The quick charger 72 converts the flow of electricity from the first DC/AC inverter 31a, the first AC/DC converter 31b, and the first AC power generation device 13 from three-phase AC to DC.
In addition, the quick charger 72 converts the power from the first DC/AC inverter 31a, the power from the first AC/DC converter 31b, and the power from the first AC power generation device 13 into a current and voltage suitable for charging the third fixed power storage device 43 while increasing at least one of the voltage and current, and supplies the current and voltage to the third fixed power storage device 43 via a quick charging cable 74 or the like.

The normal charging cable 73 is an electric cable for electrically connecting the fourth terminal 24 and the seventh terminal 27 .
The normal charging cable 73 is, for example, a coaxial cable, and includes an electric wire, a coating that covers the electric wire, a terminal that connects to the fourth terminal 24 , and a terminal that connects to the seventh terminal 27 .
The electric wire is composed of an inner conductor, an insulator covering the inner conductor, and an outer conductor covering the insulator, and the coating covers the outer conductor.
However, normal charging cable 73 is not limited to a coaxial cable. For example, the electric wire may include a positive inner conductor and a negative inner conductor arranged in parallel with the positive inner conductor with an insulator sandwiched therebetween, and these may be covered by the covering portion.
It should be noted that the fourth terminal 24 may be omitted, and the normal charger 71 and the normal charging cable 73 may be directly connected to each other. In this case, the fourth terminal 24 is omitted.

The quick charging cable 74 is an electric cable for electrically connecting the fifth terminal 25 and the eighth terminal 28 .
The quick charging cable 74 is, for example, a coaxial cable, and includes an electric wire, a coating that covers the electric wire, a terminal that connects to the fifth terminal 25, and a terminal that connects to the eighth terminal 28.
The electric wire is composed of an inner conductor, an insulator covering the inner conductor, and an outer conductor covering the insulator, and the coating covers the outer conductor.
However, the quick charging cable 74 is not limited to a coaxial cable. For example, the electric wire may include a positive inner conductor and a negative inner conductor arranged in parallel with the positive inner conductor with an insulator sandwiched therebetween, and these may be covered by the covering portion.
The fifth terminal 25 may be omitted, and the rapid charger 72 and the rapid charging cable 74 may be directly connected to each other. In this case, the fifth terminal 25 is omitted.

The power supply cable 75 is an electric cable for electrically connecting the eighth terminal 28 to an external electric device.
The power supply cable 75 is, for example, a coaxial cable, and includes an electric wire, a coating that covers the electric wire, a terminal that connects to the eighth terminal 28, and a terminal that connects to an external electric device.
The electric wire is composed of an inner conductor, an insulator covering the inner conductor, and an outer conductor covering the insulator, and the coating covers the outer conductor.
However, the power supply cable 75 is not limited to a coaxial cable. For example, the electric wire may include a positive inner conductor and a negative inner conductor arranged in parallel with the positive inner conductor with an insulator sandwiched therebetween, and these may be covered by the covering portion.
The above-mentioned quick charging cable 74 may be used as the power supply cable 75 .

(Power unit 80)
The power unit 80 has a motor 81 and wheels 82 .
The motor 81 is driven based on the electric power from the third fixed power storage device 43 to rotate the wheels 82 .

(Effects of Providing the Movable Power Storage Unit 50)
The movable power storage unit 50 can be charged by being placed on the first holding device 61 and receiving power via the sixth terminal 26 or the like.
Moreover, the movable power storage unit 50 can be separated from the first holding device 61 and moved on a surface.
Therefore, movable power storage unit 50 can be moved independently to the vicinity of an electrical device located away from housing 2, and power can be supplied to the electrical device via twelfth terminal 52. That is, charging/discharging can be efficiently performed using movable power storage unit 50.

(Effect of Providing the Eleventh Terminal 51 and the Twelfth Terminal 52 at Different Heights)
It is easy to prevent incorrect wiring of the eleventh terminal 51 for charging (input) and the twelfth terminal 52 for discharging (output).

(Effect of Providing the Eleventh Terminal 51 at a Higher Position than the Twelfth Terminal 52)
This makes it easier to arrange the first conversion device 31 and the like in a high position in the housing 2, making it easier to increase the storage space inside the housing 2.

(Effects of Providing the First Retaining Device 61)
It becomes possible to easily move the movable power storage unit 50 to a predetermined position inside the housing 2 by using a tailgate lifting device (first holding device 61) provided on the electric vehicle.
By arranging the sixth terminal 26 etc. at a high position inside the housing 2, it is possible to make more effective use of the space inside the housing 2 compared to a configuration in which the sixth terminal 26 etc. is arranged at a medium height position inside the housing 2.

(Effects of Providing the First Fixed Power Storage Device 41 and the Second Fixed Power Storage Device 42)
The power from the first power generation device (first DC power generation device 11, first AC power generation device 13) which has few installation area restrictions, such as outside the housing 2, and has a large output, is stored in the first fixed storage device 41 which has a large storage battery capacity.
The power from the second power generation device (second DC power generation device 12, second AC power generation device 14) which has many installation area limitations, such as the top surface of the housing 2, and has a small output, is stored in the second fixed power storage device 42 which has a small storage battery capacity.
This makes it possible to efficiently charge the battery by selectively using two fixed power storage devices having different storage battery capacities depending on the difference in output.

(Effects of Providing the First Fixed Power Storage Device 41, the Second Fixed Power Storage Device 42, and the Third Fixed Power Storage Device 43)
Electric power is temporarily stored in the first fixed power storage device 41 and the second fixed power storage device 42. Therefore, without complicating the control of power supply from the third fixed power storage device 43 to the motor 81, it is possible to immediately supply electric power from the first fixed power storage device 41 to the third fixed power storage device 43 via the quick charging cable 74 without complicating the control of power supply from the third fixed power storage device 43 to the motor 81. Also, it is possible to immediately supply electric power from the second fixed power storage device 42 to the third fixed power storage device 43 via the normal charging cable 73. This makes it possible to utilize the first fixed power storage device 41, etc. as a battery (backup power source) for the third fixed power storage device 43.

(Effect of supplying electric power to the third fixed power storage device 43 via the quick charging cable 74 and the eighth terminal 28)
The first fixed power storage device 41 and the third fixed power storage device 43 are electrically connected to each other via the quick charge cable 74 and the eighth terminal 28. Therefore, unless the quick charge cable 74 is connected to the eighth terminal 28, power will not be mistakenly supplied from the first fixed power storage device 41 to the third fixed power storage device 43. This makes it possible to reduce the possibility of damage to the third fixed power storage device 43, which is fixed to the housing 2 and difficult to remove.

(Effect of supplying power to third fixed power storage device 43 via normal charging cable 73 and seventh terminal 27)
The second fixed power storage device 42 and the third fixed power storage device 43 are electrically connected via the normal charging cable 73 and the seventh terminal 27. Therefore, unless the normal charging cable 73 is connected to the seventh terminal 27, power will not be mistakenly supplied from the second fixed power storage device 42 to the third fixed power storage device 43. This makes it possible to reduce the possibility of damage to the third fixed power storage device 43, which is fixed to the housing 2 and difficult to remove.

(Effect of supplying power from the third fixed power storage device 43 to an external electrical device via the power supply cable 75 and the eighth terminal 28)
The third fixed power storage device 43 is mainly used to drive the motor 81 .
However, the storage battery capacity is larger than those of the first fixed power storage device 41 and the second fixed power storage device 42. Therefore, when power is lost, such as during a power outage, the electric vehicle can be moved to the site and emergency power can be supplied to external electrical equipment, such as an elevator in an apartment building, via the power supply cable 75 and the eighth terminal 28. Note that power may also be supplied from the third fixed power storage device 43 to external electrical equipment via the power supply cable 75 and the eighth terminal 28, not limited to emergency power supply when power is lost.

(The benefit of being able to utilize existing electric vehicles, etc.)
The electric vehicle of this embodiment can be easily formed by simply adding the second DC power generation device 12, the second fixed power storage device 42, etc. to an existing electric vehicle or plug-in hybrid vehicle that includes the third fixed power storage device 43, the seventh terminal 27, the eighth terminal 28, the motor 81, and the wheels 82.
Since power is supplied via the seventh terminal 27 or the eighth terminal 28 rather than directly to the third fixed power storage device 43, a second DC power generation device 12 added to an existing electric vehicle, etc. is unlikely to adversely affect the control and/or operation of the third fixed power storage device 43 and/or the motor 82.

(Application example of the holding portion 60, second embodiment)
In the first embodiment, an example has been described in which the first holding device 61 (tailgate lifting device) attached to the housing 2 holds the movable power storage unit 50 .
However, another holding device (second holding device 62) may hold the movable power storage unit 50 (see FIGS. 4 and 5).
The holding portion 60 of the second embodiment has a second holding device (carriage) 62 .
In FIG. 4, some of the components constituting the power supply system 1, such as the first terminal 21, are omitted from the illustration.

When housed in the housing 2 , the second holding device 62 holds the movable power storage unit 50 such that the eleventh terminal 51 is connected to the sixth terminal 26 .
In order to hold movable power storage unit 50 while preventing horizontal movement of movable power storage unit 50 , a stopper (second stopper 62 a ) is provided in a region of second holding device 62 that comes into contact with movable power storage unit wheels 54 .
Of the wheels of the second holding device 62, the wheel on the side facing the housing 2 constitutes a retractable wheel 62b.
Before being stored in the housing 2, the retractable wheels 62b function as front wheels of the second holding device 62.
The retractable wheels 62b are folded when stored in the housing 2. At this time, the front side of the second holding device 62 is held by a member inside the housing 2.

(Effects of Providing the Second Retaining Device 62)
With movable power storage unit 50 held by second holding device 62 , it becomes possible to move movable power storage unit 50 to a position away from housing 2 .
Furthermore, by folding the retractable wheels 62b, the movable power storage unit 50 can be easily moved to the inside of the housing 2.

(Application example in which the housing 2 includes a tailgate lifting device)
In addition, in a case where the housing 2 includes a tailgate lifting device, the holding surface of the tailgate lifting device may be raised to a state approximately the same as the installation surface of the movable storage unit 50 in the second holding device 62, and the movable storage unit 50 may be moved from the second holding device 62 to the holding surface.
In this case, when movable power storage unit 50 is placed on second holding device 62, eleventh terminal 51 and sixth terminal 26 are located at the same height.

(Application Example 1 of Connection of Power Storage Device Group 53)
In the first and second embodiments, the example in which the eleventh terminal 51 and the power storage device group 53 are connected in parallel, and the twelfth terminal 52 and the power storage device group 53 are connected in parallel has been described.
However, the eleventh terminal 51 and the power storage device group 53 may be connected in series, and the twelfth terminal 52 and the power storage device group 53 may be connected in series.

(Application Example 2 and Third Embodiment of Connection of Power Storage Device Group 53)
In addition, either the connection between the 11th terminal 51 and the power storage device group 53 or the connection between the 12th terminal 52 and the power storage device group 53 may be connected in series, and the other may be connected in parallel (see Figures 6 and 7, third embodiment).
In this case, multiple first switches 55a and multiple second switches 55b are provided, and switching control is performed so that either the connection between the 11th terminal 51 and the group of power storage devices 53 or the connection between the 12th terminal 52 and the group of power storage devices 53 is connected in series, and the other is connected in parallel.
For example, the eleventh terminal 51 and the power storage device group 53 are connected in series, and the twelfth terminal 52 and the power storage device group 53 are connected in parallel.
In this case, it is easy to prevent backflow or short circuit of electricity during charging, which is caused by difference in the charging rate of each power storage device.

(Application examples of the second fixed power storage device 42, etc.)
In the first to third embodiments, an example has been described in which power storage device group 53 of movable power storage unit 50 includes a plurality of power storage devices (first power storage device 53a to fourth power storage device 53d).
However, each of the second to third fixed power storage devices 42 to 43 may also include a plurality of power storage devices.
In this case, among the second fixed storage device 42 to the third fixed storage device 43, those that include multiple storage devices may be connected in parallel during charging and discharging, may be connected in series during charging and discharging, or may be connected in series during either charging or discharging and connected in parallel during the other of charging and discharging.

(Application example of charging method for power storage device group 53, fourth embodiment)
In the first to third embodiments, an example has been described in which the first to fourth power storage devices 53a to 53d of the power storage device group 53 are charged simultaneously.
However, the first to fourth power storage devices 53a to 53d may be charged at different times (see FIG. 8, fourth embodiment).
In this case, the eleventh terminal 51 and the power storage device group 53 are connected in parallel, and a third switch 55c is provided between each of the eleventh terminal 51 and the first to fourth power storage devices 53a to 53d.
Of the power storage devices in the power storage device group 53, the third switch 55c corresponding to the one to be charged is turned on, and the other third switches 55c are turned off.
After the charging is completed, any one of the other third switches 55c is turned on, and charging of another power storage device is started.

In this case, it is easier to prevent backflow or short circuits during charging caused by differences in the charging rate of each storage device.

The third switch 55c is switched by the control device 56 of the movable power storage unit 50 or the like, based on the charging rates of the first to fourth power storage devices 53a to 53d, respectively.
FIG. 8 shows a state in which the first power storage device 53a is being charged, and the second to fourth power storage devices 53b to 53d are not being charged.

Furthermore, each of the first to fourth power storage devices 53a to 53d may be held in the case 50a of the movable power storage unit 50 in a detachable state.
In this case, the movable power storage unit 50 includes a holder 57 that detachably holds each of the first to fourth power storage devices 53a to 53d.
FIG. 8 shows a state in which the first power storage device 53 a , the third power storage device 53 c and the fourth power storage device 53 d are held by the holder 57 , and the second power storage device 53 b is removed from the holder 57 .

By removing it, it is easy to replace the storage device alone.

The switching control of the third switch 55c is not limited to a mode in which, after charging of one power storage device is completed, charging of another power storage device is started.
For example, a possible configuration is that the control device 56 gradually increases the charging rates of the four power storage devices so that the charging rates become equal.
Specifically, the control device 56 repeatedly charges the storage device with the lowest charging rate so that its charging rate becomes equal to that of the storage device with the highest charging rate, until the charging rates of the four storage devices become approximately the same. Thereafter, the control device 56 charges one storage device so that its charging rate is increased by a predetermined percentage (e.g., 10%). Thereafter, the control device 56 repeatedly charges the storage device with the lowest charging rate so that its charging rate becomes equal to that of the storage device with the highest charging rate, until the charging rates of the four storage devices become approximately the same.
This makes it possible to discharge the four power storage devices while they are all at approximately the same charging rate.

In addition, information regarding the state of the movable part storage unit 50, i.e., whether or not a storage device is held in the holder 57, the charging rate of the storage device held in the holder 57, etc., may be transmitted to an external device.
In this case, the movable storage unit 50 includes an information acquisition unit 58 that acquires information from sensors that acquire information regarding the position information of the movable storage unit 50, whether or not the storage device is held in the holder 57, the charging rate of the storage device held in the holder 57, etc., and an information transmission unit 59 that transmits the information obtained by the information acquisition unit 58.
The information transmitting unit 59 transmits such information to a communication unit (not shown) mounted in the housing 2, an external electric device (not shown), or the like.

(Application example of the 11th terminal 51 and the 12th terminal 52, Fifth embodiment)
In the first to fourth embodiments, the examples in which the eleventh terminal 51 and the twelfth terminal 52 are configured as separate terminals (configured separately) have been described.
However, one terminal (dual-purpose terminal 51a) may be used as an input terminal for charging (eleventh terminal 51) and as an output terminal for discharging (twelfth terminal 52) (see Figures 9 and 10, fifth embodiment).

The movable power storage unit 50 of the fifth embodiment has a multipurpose terminal 51 a instead of the eleventh terminal 51 and the twelfth terminal 52 .
The dual-purpose terminal 51 a functions as both the eleventh terminal 51 and the twelfth terminal 52 .
In the fifth embodiment, the first switch 55a and the second switch 55b are omitted.

The dual-purpose terminal 51a may be fixed in one location (for example, the top of the case 50a, like the 11th terminal 51), or may be attached to the case 50a or the like in a state in which it can be moved to two or more locations.
For example, when the dual-purpose terminal 51a is used as the eleventh terminal 51, the dual-purpose terminal 51a is disposed at a position (top of the case 50a) facing the sixth terminal 26 (see FIG. 9).
Furthermore, when the dual-purpose terminal 51a is used as the twelfth terminal 52, the dual-purpose terminal 51a is disposed at a position (a side surface of the case 50a) facing a terminal of an external electric device (see FIG. 10).

In this case, at least a part of the electric wire connecting the power storage device group 53 and the multipurpose terminal 51a in the movable power storage unit 50 is made of a flexible and stretchable member 51b such as a curl cord or a flexible substrate.
Figure 9 shows an example of a state in which the elastic member 51b contracts and charges the first storage device 53a, and Figure 10 shows an example of a state in which the elastic member 51b expands and discharges from the first storage device 53a and the fourth storage device 53d.

This allows one terminal (combined terminal 51a) to be used as both an input terminal for charging and an output terminal for discharging. In addition, because the combined terminal 51a is attached to the case 50a in a movable state, it can be easily connected to the sixth terminal 26 or a terminal of an external electrical device.

Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are within the scope of the invention and its equivalents as set forth in the claims, as well as the scope and spirit of the invention.

REFERENCE SIGNS LIST 1 Power supply system 2 Housing 10 Power generation unit 11 First DC power generation device (external)
12 Second DC power generating device 13 First AC power generating device (external)
14 Second AC power generating device (external)
20 Terminal portion 21 First terminal (for second AC power generating device)
22 Second terminal (for first DC power generation device)
23 Third terminal (for first AC generator)
24 4th terminal (for normal charger)
25 5th terminal (for quick charger)
26 6th terminal (for movable storage device)
27 Terminal 7 (normal charging input terminal)
28 Terminal 8 (quick charge input terminal)
30 Conversion unit 31 First conversion device (three-phase to single-phase)
31a First DC/AC inverter 31b First AC/DC converter 32 Second conversion device (single phase to three phase)
32a Second DC/AC inverter 32b Second AC/DC converter 40 Fixed power storage unit 41 First fixed power storage device (small capacity)
42 Second fixed storage device (medium capacity)
43 Third fixed storage device (for motor, large capacity)
50 Movable power storage unit 50a Case 51 Eleventh terminal (input terminal)
51a Dual-purpose terminal 51b Flexible and stretchable material for electric wire 52 12th terminal (output terminal)
53 Electricity storage device group 53a to 53d First to fourth electricity storage devices 54 Wheel for movable electricity storage device 55 Switching unit 55a First switch

55b Second switch

55c Third switch 56 Control device 57 Holder 58 Information acquisition unit 59 Information transmission unit 60 Holding unit 61 First holding device (tailgate lifting device)
61a First stopper 62 Second holding device (cart)
62a: second fastener; 62b: retractable wheel; 70: charging unit; 71: normal charger; 72: rapid charger; 73: normal charging cable; 74: rapid charging cable; 75: power supply cable; 80: power unit; 81: motor; 82: wheel

Claims

a power generation section having a first power generation device;
a fixed power storage unit including a first fixed power storage device that stores the electric power generated by the first power generation device;
a movable power storage unit that stores the power obtained by the first power generation device and the power from the first fixed power storage device,
the movable power storage unit has an input terminal and an output terminal for connection to an external electric device;
the movable power storage unit has a movable power storage device wheel;
a power supply system provided in a housing that accommodates the fixed power storage unit, wherein power is supplied to the movable power storage unit via a terminal electrically connected to the first fixed power storage device and the input terminal.
The input terminal and the output terminal are configured separately,
The power supply system according to claim 1 , wherein the input terminal and the output terminal are provided at different height positions.
The power supply system according to claim 2, wherein the input terminal is provided at a higher position than the output terminal.
the housing is a housing of an electric vehicle,
The electric vehicle has a tailgate lifting device,
a stopper is provided in a region of the tailgate lifting device that comes into contact with a wheel for the movable power storage unit in order to hold the movable power storage unit in a state in which the movable power storage unit cannot move in a horizontal direction;
The power supply system according to claim 3 , wherein the tailgate lifting device holds the movable power storage unit such that, when the movable power storage unit is lifted and stored in the housing, the input terminal is connected to the terminal.
A carriage separate from the housing is provided,
the movable power storage unit is placed on the cart,
The power supply system according to claim 3 , wherein the input terminal and the terminal are positioned at the same height when the movable power storage unit is placed on the cart.
A carriage separate from the housing is provided,
the carriage holds the operating power storage unit such that the input terminal is connected to the terminal when the operating power storage unit is housed in the housing;
Among the wheels of the dolly, a wheel on a side facing the housing is a retractable wheel,
Before the dolly is stored in the housing, the retractable wheels function as front wheels of the dolly;
The power supply system according to claim 3 , wherein the retractable wheels are folded when the dolly is stored in the housing.
The power supply system according to claim 1, wherein the movable power storage unit has a dual-purpose terminal that is used as both the input terminal and the output terminal.
at least a part of an electric wire connecting the electric storage device of the movable electric storage unit and the dual-purpose terminal is made of an elastic material,
The power supply system according to claim 7 , wherein the dual-purpose terminal is movably attached to a case of the movable power storage unit.
the movable power storage unit includes a plurality of power storage devices,
the input terminal and the plurality of power storage devices are connected in parallel,
The power supply system according to claim 1 , wherein the output terminal and the plurality of power storage devices are connected in parallel.
The movable power storage unit includes a control device and a switch.
The power supply system according to claim 9 , wherein the control device controls the switch so that the plurality of power storage devices are charged at different times.
The power supply system according to claim 9, wherein the movable storage unit includes a holder that detachably holds each of the plurality of storage devices.
The power supply system according to claim 9, wherein the movable power storage unit includes an information transmission unit that transmits information regarding at least the charging rates of the plurality of power storage devices.
the movable power storage unit includes a plurality of power storage devices and a switching unit;
the input terminal and the plurality of power storage devices are connected in series;
the output terminal and the plurality of power storage devices are connected in parallel,
The power supply system according to claim 1 , wherein the switching unit switches between an electrical connection between the input terminal and the plurality of power storage devices and an electrical connection between the output terminal and the plurality of power storage devices.
the fixed power storage unit includes the first fixed power storage device, a second power storage device, and a third power storage device,
the first fixed power storage device stores electric power from at least the first power generation device of the power generation unit that is disposed away from the housing;
the second fixed power storage device stores electric power from a second power generation device of the power generation unit that is attached to the housing or disposed away from the housing;
the third fixed power storage device is used to drive a motor of the electric vehicle;
the power stored in the first fixed power storage device is stored in the third fixed power storage device via a quick charger, a quick charge cable, and a quick charge terminal electrically connected to the third fixed power storage device;
2. The power supply system according to claim 1, wherein the power stored in the second fixed storage device is stored in the third fixed storage device via a normal charger, a normal charging cable, and a normal charging input terminal electrically connected to the third fixed storage device.
the fixed power storage unit includes the first fixed power storage device and a third fixed power storage device,
the first fixed power storage device stores electric power from at least the first power generation device of the power generation unit that is disposed away from the housing;
the third fixed power storage device is used to drive a motor of the electric vehicle;
2. The power supply system according to claim 1, wherein the power stored in the first fixed power storage device is stored in the third fixed power storage device via a quick charger, a quick charging cable, and a quick charging terminal electrically connected to the third fixed power storage device.
16. The power supply system according to claim 14, wherein the power stored in the third fixed power storage device is supplied to the external electric device via the rapid charging terminal and a power supply cable.