JP2000351329A - Electric automobile using large capacity electric double layer capacitor as power source - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a housing space, and to reinforce a car body structure by uniting a box-shaped electric double layer capacitor housing case being a housing part of a capacitor with a part of a car body or a frame. SOLUTION: A housing part is formed of a box-shaped electric double layer capacitor housing case 12 for forming a box body closed by being combined with at least a floorboard of a car body and control device housing cases 101, 102 of the same shape. These housing cases 12, 101, 102 are integrally arranged with the car body or a frame to function as a reinforcing material for improving car body strength as well as to function as a housing part of an electric double layer capacitor and various devices, a connecting wire housing part between the electric double layer capacitors and a connecting part of wheels and an electric motor assembly. Thus, a driving power source system of the electric double layer capacitor can be housed without sacrificing the volume (the free space volume) of a payload part, and an inside driving power source system can be protected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly, to an electric vehicle provided with an electric motor capable of performing regenerative braking and a large-capacity electric double layer capacitor as an electric storage medium.

[0002]

2. Description of the Related Art In recent years, in order to reduce air pollution in urban areas, electric vehicles have attracted attention as non-polluting vehicles having no exhaust gas. However, conventional electric vehicles include lead-acid batteries, nickel-cadmium batteries, and lithium batteries. The mainstream is to drive a motor using a chemical battery (secondary battery) such as a battery as a power source. However, these chemical batteries have the disadvantage that they require a considerable amount of time for charging and also require maintenance operations such as replenishment of the electrolyte. In order to obtain a sufficient traveling distance, the weight and the occupied volume of the battery are inevitably increased at present, and there is also a problem that the mounting location of the battery is limited. In addition, because there is heat radiation accompanying charge and discharge,
Consideration for this is also necessary.

On the other hand, an electric vehicle using an electric double layer capacitor as a power source has been proposed to solve these difficulties. Electric double layer capacitors have a shorter charging time than chemical batteries, and can take out a large current instantaneously.
Moreover, it has the feature that the charge / discharge cycle life is long.
However, since the electric double layer capacitor has a smaller capacity density than a chemical battery, a considerably large-capacity capacitor is still required as a driving power supply for an electric vehicle. Therefore, a part of the payload portion on which people and luggage are loaded is occupied for mounting the electric double layer capacitor.

[0004] Further, it is necessary to protect the electric double layer capacitor from impacts and the like, and the free space is reduced by members for this purpose. Furthermore, there is a fundamental problem that the traveling distance is insufficient compared with the case where gasoline or the like is used as fuel from the relation with electric capacity.

[0005]

SUMMARY OF THE INVENTION The present invention seeks to alleviate the above-mentioned problems in an electric vehicle as much as possible. In an electric vehicle powered by an electric double layer capacitor, the storage space for a drive power supply system can be reduced. While trying to
At the same time, the present invention provides a vehicle body structure that can reinforce the vehicle body structure and extend the traveling distance.

[0006]

In order to solve the above-mentioned problems, the present invention according to the first aspect of the present invention provides a large-capacity battery that uses electric charges charged in an electric double layer capacitor as electric power for driving electric equipment such as a motor. An electric vehicle without a frame powered by an electric double layer capacitor is provided integrally with a vehicle body at the bottom to reinforce the strength of the vehicle body bottom and form a closed box at least in combination with a vehicle body floor panel. A box-shaped protection case for an electric double layer capacitor is arranged, and the electric double layer capacitor, wiring between the capacitors, and a connector to an external device are arranged in the protection case for the electric double layer capacitor. Features.

According to this structure, the protective case for the electric double layer capacitor provided integrally with the vehicle body at the bottom of the vehicle body functions as a reinforcing material for increasing the strength of the vehicle body. Further, this protective case is combined with a floor plate for constituting a loading portion to form a closed box, in which an electric double layer capacitor, wiring between capacitors and a connector to an external device are arranged. Has been established. Therefore, a drive power supply system such as an electric double layer capacitor can be accommodated without sacrificing the volume of the payload portion (free space volume), and since the protective case is a closed box, dust is not contained in the protective case. There is no intrusion of dust or mud, and the internal drive power system is protected. Further, since the box is a closed box, it is excellent in a reinforcing effect not only in the upward direction of the vehicle body but also in the lateral direction and the stress such as torsion.

As described above, according to the first aspect of the present invention,
The vehicle body can be reinforced without newly arranging a reinforcing material, and dead space can be effectively used. Therefore, the simplification and weight reduction of the vehicle body structure and the enlargement of the loading portion of the person or the cargo can be realized at the same time, and particularly, the reinforcing effect and the expanding effect of the loading portion are remarkably exerted in the automobile adopting the monocoque structure.

[0009] The "box-like" refers to a box having six surfaces,
And a box with one side open, such as a box. In the case of a box-shaped protective case having six surfaces, the floor plate overlaps the case upper surface viewed from the vehicle body bottom (ground side).

According to a second aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double layer capacitor according to the first aspect, wherein the vehicle body is provided at a required position on the bottom of the vehicle body other than where the protective case for the electric double layer capacitor is attached. A box-shaped protection case for the control device that reinforces the strength of the bottom is provided integrally with the vehicle body, and in the protection case for the control device, an electric double-layer capacitor charging device, a power regenerative braking device, a voltage control device, and an operation control device are provided. And a connector for connecting a drive motor having a regenerative braking function between the control devices, a control device, a driving device, a lighting device, and the like. .

In this configuration, not only the protection case for the electric double layer capacitor but also the electric double layer capacitor charging device,
A protection case for a control device that accommodates various control devices such as a power regenerative braking device, a voltage control device, and an operation control device is also provided integrally with the vehicle body. Therefore, the strength of the vehicle body can be further increased, and a space for accommodating various control devices can be secured without compressing the volume of the payload portion.

According to a third aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double layer capacitor according to the second aspect, wherein the electric vehicle is an electric vehicle utilizing regenerative braking. Yes, specifically, the drive motor has a power regenerative braking function, and in the control device protection case, a power regenerative braking device is housed in addition to the various control devices,

With the above-described structure incorporating the power regenerative braking function, smooth and high-precision braking can be achieved, and the braking regenerative power generated at every braking is stored in the electric double layer capacitor, so that the vehicle weight is reduced. Significantly extending the traveling distance becomes possible in combination with the reduction effect.

When a chemical battery is used as a driving power source, the chemical battery converts electrical energy into chemical energy and stores the power. Therefore, the braking regenerative power generated during a very short time during braking is not stored. I can't get it. That is,
With a combination of a chemical battery and a power regenerative braking device, even if smooth braking can be achieved, the traveling distance cannot be extended by storing the braking regenerative power. On the other hand, an electric double layer capacitor stores electric energy as it is, and therefore can sufficiently store electric power generated within a very short time of several seconds to several minutes. The above-described operation and effect can be realized only in an electric vehicle in which a multilayer capacitor and a power regenerative braking device are combined.

According to a fourth aspect of the present invention, there is provided an electric vehicle having a frame for utilizing electric charges charged in an electric double layer capacitor as driving power for power devices such as a motor.
The electric vehicle is provided integrally with the frame in a window-like portion formed of a structural material of the frame to reinforce the strength of the bottom of the vehicle body and form a closed box in combination with at least a floor plate of the vehicle body. A box-shaped protection case for an electric double layer capacitor, in which the electric double layer capacitor, the wiring between the capacitors, and the connector to the external device are arranged. Features.

In the above-described configuration, the electric double layer capacitor protective case is integrated with the frame in the window-like portion made of the structural material of the frame, so that the electric double layer capacitor protective case reinforces the strength of the frame. And also functions as a support member for supporting the floorboard from below. Therefore, the strength of the vehicle body is greatly improved. Further, since the electric double layer capacitor is accommodated in such a protective case, the capacity of the payload portion is not sacrificed. Furthermore, by providing a protective case for the electric double layer capacitor on the entire bottom surface of the vehicle body and accommodating a large number of electric double layer capacitors, the capacity can be increased without sacrificing the capacity of the payload portion. The power of the vehicle can be increased and the mileage can be extended without reducing the volume of the portion.

According to a fifth aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double-layer capacitor according to the fourth aspect, further comprising an auxiliary power supply provided outside the structural material of the frame except for the wheel device position. A housing case for accommodating a control device such as a control device for a motor or a driving motor is dispersedly arranged.

According to this configuration, the outside of the frame structural material is effectively used. According to this configuration, each device and wiring between the devices required for the electric vehicle can be arranged in a block, so that the vehicle body structure can be further improved. Simplification and weight reduction can be achieved.

A sixth aspect of the present invention is characterized in that an electric vehicle powered by the large-capacity electric double layer capacitor according to the fifth aspect is an electric vehicle utilizing regenerative braking.
Specifically, the drive motor has a power regenerative braking function, and a power regenerative braking device is housed in the housing case.

According to this configuration, the same operation and effect as those described in the third aspect can be obtained.

According to a seventh aspect of the present invention, in the electric vehicle powered by the large-capacity electric double layer capacitor according to the third or sixth aspect, an electric motor having a power regenerative braking function is provided on each of four wheels. It is characterized by having.

When an electric motor having a power regenerative braking function is provided for each of the four wheels, the braking performance is further smoothed,
The small turning property is also improved, but the following unique effects can be obtained. That is, if an electric motor having a power regenerative braking function is provided for each of the four wheels, a larger current will be required. Therefore, it is necessary to make the wiring thicker and the wiring of the electric system becomes complicated. According to the present invention, for example, as shown in FIG. 6, capacitors and various devices and wirings and connection connectors related to the capacitors are housed in blocks distributed in various places on the bottom of the vehicle body so as to block between capacitors, between capacitors and devices, between devices and motors. The structure is such that the wiring distance between them can be reduced. Therefore, according to the present invention, even if an electric motor having a power regenerative braking function is provided for each of the four wheels, the wiring is not complicated, and the increase in the vehicle weight due to the wiring is small.

According to an eighth aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double layer capacitor according to any one of the first to seventh aspects, wherein the protective case for the electric double layer capacitor comprises:
The protective case is made of an insulating material, or an insulating material is lined, and a wiring between the electric double layer capacitors and a connector for connection to the outside are printed on the inner surface of the protective case. .

When the protective case is made of an insulating material or a lining made of an insulating material, it is possible to prevent electric leakage and to print wiring such as wiring between electric double layer capacitors on the inner surface of the protective case. In the case of the printed wiring, the weight increase due to the wiring is small, which contributes to the reduction of the weight of the vehicle body. In addition, since the protective case is a closed box, the printed wiring is less likely to be damaged.

[0025]

Embodiments of the present invention will be described below.

According to the present invention, a housing for a large-capacity electric double-layer capacitor and a housing for a control device are dispersedly arranged in a housing space provided at the bottom of a vehicle body, for example, in the case of an automobile having a monocoque structure. In the case of the above-mentioned automobile, it is dispersed and arranged in the accommodation space provided in the frame portion.
These housings are configured with at least a box-shaped protection case for an electric double-layer capacitor combined with a floor panel of a vehicle body to form a closed box, a protection case for a control device having a similar shape, and the like. The protection case is provided integrally with the vehicle body or the frame. The function as a reinforcing material for improving the strength of the vehicle body, the housing for the electric double layer capacitor and various devices, the connection line housing for the electric double layer capacitor, the connection with the wheels and the motor assembly, etc. Provided for multipurpose use.

The protective case of the electric double layer capacitor is formed of the same material as the vehicle body or frame, for example, a steel plate, and integrated with the vehicle body by means such as welding or bolting. Further, the protective case of the capacitor is made of high-strength plastic, so that it can be used also as a connection bus support and a terminal base for the electric motor.

FIG. 1 is a view showing a first structure of an embodiment of the present invention in which an electric double layer capacitor accommodating portion is provided on a floor portion of a vehicle body or a frame of an electric vehicle. In FIG. 1, 11 is a vehicle body, 12 is a protective case of an electric double layer capacitor, 13 is a front wheel, a front wheel assembly including a motor and a bearing having a power regeneration function during braking, 14 is a rear wheel, power during braking. A rear wheel assembly including a motor having a regenerating function and a bearing, 15 is a steering device, and 16 is a rear seat or a luggage compartment.

FIG. 2 shows the main part of the body upper part and the bottom part of the embodiment of FIG. 1 with the floor plate removed, and the same parts as those in FIG. 1 are denoted by the same reference numerals. At the bottom of the vehicle body, a protective case 12 is provided as an accommodating portion for the electric double layer capacitor, and accommodates the electric double layer capacitor via a buffer material as described later. Cases 101 and 102 for accommodating control devices are provided before and after this protective case.

FIG. 3 is a view showing the structure of an embodiment in which the accommodating portion 12 for the electric double layer capacitor is provided inside the frame of the electric vehicle using the frame 19, and FIG.
It is a top view in the state where the body was removed. Current automobiles, especially passenger cars or wagon cars, usually employ a so-called monocoque body and do not use a frame. However, in small luggage carriers,
Because of the use of various bodies suitable for loading cargo, it is also an effective means to assemble a standard traveling part using a frame and attach a body 11 suitable for the intended use to a completed vehicle. .

In the case of a structure having a frame, the accommodating portion 12 of the electric double layer capacitor serving also as a bottom plate and a reinforcing plate is formed in the frame 19, and in addition to the original function of the frame receiving the load, the internal space is accommodated. Use it effectively as The frame itself may be made of a steel material so as to maintain a sufficient strength, and a separately manufactured housing portion 12 may be fixed inside the steel material. A detachable floor plate (not shown) also serving as a cover plate is fixed to the floor portion including the capacitor accommodating portion with bolts or the like, and is laid. This seals the housing and at the same time forms the floor of the vehicle.

FIG. 5 shows an embodiment in which a case for accommodating an electric double layer capacitor and main control equipment is provided at the bottom of the vehicle body, and only the bottom is viewed from above. 511, 51
Reference numerals 3 and 515 denote a case for housing the electric double layer capacitor and the main control device. The case is made of a material formed by pressing an iron plate and then lining the inside with an insulating material. A high synthetic resin molded product is used. This case can reinforce the strength of the bottom of the body, or can be manufactured as a structure integral with the bottom. However, when the bottom is also used, it is desirable that the bottom be removable so that the bottom can be replaced.

At the center of the case 511, a compartment for accommodating the electric double layer capacitor 512 is provided, a slight gap is provided between the inner wall of the case and the capacitor, and an elastic packing material is filled and fixed. . Thus, mounting can be performed while reducing vibration and impact from the vehicle body. The packing material may be a material such as styrene foam, or may be foamed after filling with a liquid resin.

An electric vehicle is used to control a motor for driving four wheels, a brake device, and other electric systems.
Requires several controllers. These control devices include speed control, power distribution control of front wheels and rear wheels, speed difference control of inner and outer wheels of rear wheels during turning, power regeneration control during braking, brake control, and the like. In addition to the above, control devices such as charging of the electric double layer capacitors, voltage balancing between the capacitors, voltage stabilization, and charging control of the capacitors with the power recovered by the power regenerative braking are required as power sources. These are mainly electronic control devices, which are mounted separately on the case 512, 513 or an appropriate portion of the vehicle body. The arrangement of these control devices is shown in FIG.
Therefore, the explanation is referred to.

FIG. 6 shows an embodiment in which components such as a power supply, a charger, and a controller are incorporated inside and outside a frame in an electric vehicle using a frame. Inside the frame, electric double layer capacitors 611, 61
5 housing cases 612 and 618, respectively.

As a material of the case, a material formed by pressing an iron plate and lining the inside thereof with an insulating material, or a material formed by molding a strong synthetic resin is used. In this case, if the case simply has a function as an accommodating portion of the electric double layer capacitor, the case only needs to have a strength capable of protecting the capacitor against external impact. However, when the frame also functions as a reinforcing material, it is necessary to provide a strength that satisfies a design value with respect to stress such as bending and twisting of the frame.

When the electric double layer capacitor is accommodated in the cases 612 and 618, a gap 613 is provided between the case and the case so that the external impact can be reduced and fixed, and an elastic material is filled. A series connection wiring 614 is provided between the capacitors. This part can adopt a structure that serves both as an insulator and a cushioning material.

A case 665 is provided on a part of the outside of the frame.
And a cord reel 66 for connecting to chargers 661 and 662, a commercial power supply or a power supply dedicated to charging.
3 etc. are accommodated. In case 655, control,
An electric double layer capacitor 651 for supplying power for lighting or the like is accommodated. However, the electric double layer capacitors 611 and 6 for traveling are used as power supplies for control, lighting and the like.
15 can be used. In this case, the electric double layer capacitor 651 need not be provided independently.

However, the driving electric double layer capacitor has a large load fluctuation, and sometimes uses a voltage higher than a standard voltage as a power supply voltage of an automobile for driving an electric motor. Therefore, it is preferable to provide a separate power supply for control and illumination.

The cases 641 to 644 are mounted on the outside of the frame, and are provided with a control device for sufficiently exhibiting various functions including a power regeneration function of a motor provided on each wheel, a control device for various lamps, and a motor. It houses a connector for connection and the like. The case 67 is a housing for equipment such as a steering device, an accelerator, and electric and mechanical brakes or their control devices.

In the electric vehicle of the present invention, electric motors are provided on four wheels dispersedly and electric power regenerative braking is used at the time of braking. Therefore, wiring of an electric system is more complicated than that of a general vehicle driven by an internal combustion engine. Becomes Also, the current capacity of the power wiring is increased. Further, since the power supply, the charger, the control device, and the like are dispersedly arranged, the electric wiring for control is more complicated than that of a conventional vehicle. Therefore, electric wiring can be realized by a wire harness using conventional electric wires.
Wiring can be streamlined by providing necessary internal wiring and a connector for connection to the outside.

The above case is combined with a floor plate to form a closed box structure. However, unlike a chemical battery, an electric double layer capacitor does not generate gas at the time of charging and discharging, and also generates heat. Since there is little, there is no particular inconvenience even if a closed structure is adopted, but by adopting a closed structure, the effect of reinforcing the vehicle body is enhanced and the effect of preventing intrusion of dust and mud is obtained.

Since the voltage used in the electric vehicle of the present invention is as low as 12 volts, 24 volts, or 48 volts, the requirements for insulation are not so severe, and in addition to the technology of printed wiring, there is a slight demand. By reinforcing the insulating material, even complicated wiring can be realized at low cost. However, it may have a power regeneration function during braking, and only the power system with a large current capacity
Inexpensive conductor means can be obtained by coating a copper strip having a sufficient cross-sectional area with an insulating material or sandwiching it with an insulating plate, and can also be used for mechanical connection of each capacitor.
Thus, by connecting the respective cases with the required connectors, the system is completed, and it is possible to reduce the manufacturing cost, simplify the structure, and rationalize maintenance and failure repair.

The connectors are preferably provided at the ends of each case so that the connection lines between the cases are minimized. In some cases, the connection lines must be independently provided inside the case, but the wiring on the printed circuit board of the control circuit can also be used.

The embodiment of FIG. 6 tends to be heavier than a so-called monocoque body in that a frame is used. However, in an automobile using an electric double layer capacitor as a power source, the capacitor and the control By being able to incorporate the device, being able to assemble most of the functions of the car, including the wheels, electric motors and steering gear, by mounting a body and floor plate suitable for the intended use on this chassis, There is an advantage that various types of vehicles can be provided.

The automobile of the present invention can transport a large amount of cargo over long distances. However, if anything, it is suitable for the purpose of delivering a small amount of luggage with extremely low operation sound by making small turns and taking advantage of the features of the electric vehicle. Such a feature can provide a car that has the advantage of being available for delivery early in the morning in a quiet residential area, or even late at night. Also,
As a clean vehicle with no exhaust gas, it can lead and run marathons, amusement and golf course vehicles, public vehicles,
Also suitable as a bus.

Also, unlike batteries utilizing chemical action,
The charging time of an electric double layer capacitor is very short, so if you set a charging station at the required distance,
Even if the power of the capacitor is consumed, the power can be replenished in a short time. Therefore, it can be operated for a long time as a bus, a delivery truck, or a taxi in a limited area, which runs on a fixed route and has a large number of braking operations, and its utility value is high.

By the way, in the present invention, an electric vehicle having a power regenerative braking function in which a power regenerative braking mechanism is incorporated and the regenerated power is stored in an electric double layer capacitor can be provided. In addition to effective braking, the effect of reducing the weight of the vehicle and the effect of regenerating power can be combined to significantly extend the mileage. Here, in the case of a configuration having a power regenerative braking function, the structure of the power regenerative braking device or the electric double layer capacitor itself is not particularly limited, and a known power regenerative braking unit and a known electric double layer capacitor can be widely used. However, for electric double layer capacitors,
The power regenerative braking device is accommodated in 512 of FIG. 5 and 611 and 615 of FIG.
It is accommodated in 641, 642, 643, 644 of FIG.

In general, a braking / generating (low-speed) motor is provided near the wheels together with the original traveling (high-speed) motor, and the circuit is switched from the high-speed motor to the low-speed motor when performing regenerative braking. adopt. By this switching, at the time of braking, the low-speed side electric motor is operated at the synchronous speed or higher, and functions as a brake and generates power until the synchronous speed is reached, so that the electric power is stored in the electric double layer capacitor.

Such electric power regenerative braking is a well-known technique widely used in, for example, high-speed railway vehicles such as the Shinkansen, subway vehicles, braking in the down direction of mountain railways, and also in cranes and elevators. In the invention, specific configurations such as the number of motor poles, a circuit switching mechanism, a connection method between the motors, an adjustment mechanism with a mechanical brake used for securing an accurate stop position, an emergency stop, and the like are known in the art. May be set arbitrarily based on Therefore, the description about these is omitted.

[0051]

As is apparent from the above description, according to the present invention, a large-capacity electric double layer capacitor is used as a power source for an electric vehicle, and a box-shaped protective case for an electric double layer capacitor serving as a housing for the capacitor is provided. Body (for monocoque structure) or part of frame (for frame structure)
To accommodate the electric double layer capacitor and reinforce the vehicle body. Therefore, according to the present invention, an extremely remarkable effect of simultaneously improving the strength of the vehicle body, reducing the weight of the vehicle body, and increasing the volume of the payload portion can be obtained.

Further, in the present invention, since the electric double layer capacitor, the control device, the wiring, and the like are housed in a protective case or a housing case which is a closed box, the device and the like can be protected from dust, mud, and the like soaring during traveling. Since the apparatus and the like are housed in blocks at predetermined positions, the effect of rationalizing and simplifying the vehicle body structure and facilitating manufacture and maintenance can be obtained. Further, since the floor surface is reinforced by a protective case or the like, the floorboard can be made thin.

Further, when adopting an assembly of wheels and an electric motor and adopting a structure of four-wheel independent drive, electric power regenerative braking, and electronic control, in addition to reducing the weight of the vehicle body and reducing the cost by rationalizing and simplifying the structure, traveling The extension of the distance and the smooth braking are realized. As described above, according to the present invention, it is possible to improve the drawbacks of an electric vehicle such as a short traveling distance without incurring a significant increase in cost as compared with the related art.

[0054]

[Brief description of the drawings]

FIG. 1 is a diagram showing a first structure of an embodiment in which an electric double-layer capacitor and an accommodating portion for a control device are provided on a floor portion of a vehicle body or a frame of an electric vehicle according to the present invention.

FIG. 2 is a cross-sectional view of a main part of a body upper part and a bottom part of the embodiment of FIG. 1 with a floor plate removed.

FIG. 3 is a diagram showing a structure of an embodiment in which a housing for an electric double layer capacitor is provided inside an electric vehicle using a frame, and a housing for a control device is provided around the housing.

FIG. 4 is a plan view of the embodiment of FIG. 3 with the body removed.

FIG. 5 is a diagram showing an accommodation state of an electric double layer capacitor, a control device, and the like at the bottom of the vehicle body in the embodiment of FIG. 2;

FIG. 6 is a diagram showing an accommodation state of an electric double layer capacitor, a control device, and the like inside a protective case mounted inside and outside a frame in the embodiment of FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Vehicle body 12 Protective case of electric double layer capacitor 13 Front wheel assembly 14 Rear wheel assembly 15 Steering device 16 Rear seat or luggage compartment 19 Frame 101, 102 Protective case for control device 511, 513, 515 For electric double layer capacitor and control device Housing case 512 Electric double layer capacitor 611, 615 Electric double layer capacitor 612, 618 Housing case for electric double layer capacitor and control equipment 614 Wiring for series connection 641, 642, 643, 644 Equipment case 651 for control device, etc. Control, lighting power supply Electric double layer capacitor 661, 662 Charger for electric double layer capacitor 663 Charging cord reel 665 Case for charger etc. 67 Operation control device case

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[Procedure amendment]

[Submission date] April 21, 2000 (200.4.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] An electric vehicle powered by a large-capacity electric double layer capacitor

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly, to an electric vehicle provided with an electric motor capable of performing regenerative braking and a large-capacity electric double layer capacitor as an electric storage medium.

[0002]

2. Description of the Related Art In recent years, in order to reduce air pollution in urban areas, electric vehicles have attracted attention as non-polluting vehicles having no exhaust gas. However, conventional electric vehicles include lead-acid batteries, nickel-cadmium batteries, and lithium batteries. The mainstream is to drive a motor using a chemical battery (secondary battery) such as a battery as a power source. However, these chemical batteries have the disadvantage that they require a considerable amount of time for charging and also require maintenance operations such as replenishment of the electrolyte. In order to obtain a sufficient traveling distance, the weight and the occupied volume of the battery are inevitably increased at present, and there is also a problem that the mounting location of the battery is limited. In addition, because there is heat radiation accompanying charge and discharge,
Consideration for this is also necessary.

On the other hand, an electric vehicle using an electric double layer capacitor as a power source has been proposed to solve these difficulties. Electric double layer capacitors have a shorter charging time than chemical batteries, and can take out a large current instantaneously.
Moreover, it has the feature that the charge / discharge cycle life is long.
However, since the electric double layer capacitor has a smaller capacity density than a chemical battery, a considerably large-capacity capacitor is still required as a driving power supply for an electric vehicle. Therefore, a part of the payload portion on which people and luggage are loaded is occupied for mounting the electric double layer capacitor.

[0004] Further, it is necessary to protect the electric double layer capacitor from impacts and the like, and the free space is reduced by members for this purpose. Furthermore, there is a fundamental problem that the traveling distance is insufficient compared with the case where gasoline or the like is used as fuel from the relation with electric capacity.

[0005]

SUMMARY OF THE INVENTION The present invention seeks to alleviate the above-mentioned problems in an electric vehicle as much as possible. In an electric vehicle powered by an electric double layer capacitor, the storage space for a drive power supply system can be reduced. While trying to
At the same time, the present invention provides a vehicle body structure that can reinforce the vehicle body structure and extend the traveling distance.

[0006]

According to a first aspect of the present invention, there is provided a large-capacity electric double-layer capacitor utilizing electric charges charged in the electric double-layer capacitor as driving power for electric equipment such as a motor. In an electric vehicle without a frame having a power source, a box-shaped body is provided integrally with the vehicle body at the bottom to reinforce the strength of the vehicle body bottom and is combined with at least the floor plate of the vehicle body to form a closed box. A housing case for an electric double layer capacitor is arranged, and an electric double layer capacitor, a wiring between capacitors, and a connector to an external device are arranged in the housing case for an electric double layer capacitor.

[0007] According to this structure, the electric double layer capacitor housing case provided integrally with the vehicle body at the bottom of the vehicle body functions as a reinforcing material for increasing the vehicle body strength. Further, this housing case is combined with a floor plate for constituting a loading portion to form a closed box, in which an electric double layer capacitor, wiring between capacitors and a connector to an external device are arranged. Has been established. Therefore, a driving power supply system such as an electric double layer capacitor can be accommodated without sacrificing the volume (free space volume) of the payload portion, and the accommodation case is a closed box, so that dust is contained in the accommodation case. There is no intrusion of dust or mud, and the internal drive power system is protected. Further, since the box is a closed box, it is excellent in a reinforcing effect not only in the upward direction of the vehicle body but also in the lateral direction and the stress such as torsion.

As described above, according to the first aspect, the vehicle body can be reinforced without newly arranging a reinforcing member, and dead space can be effectively utilized. Therefore, the simplification and weight reduction of the vehicle body structure and the enlargement of the loading portion of the person or the cargo can be realized at the same time, and particularly, the reinforcing effect and the expanding effect of the loading portion are remarkably exerted in the automobile adopting the monocoque structure.

[0009] The "box-like" refers to a box having six surfaces,
And a box with one side open, such as a box. In the case of a box-shaped storage case having six surfaces, the floor plate overlaps the case upper surface viewed from the vehicle body bottom (ground side).

According to a second aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double-layer capacitor according to the first aspect of the present invention, wherein the electric double-layer capacitor is mounted on a required portion of a bottom portion of the vehicle body other than a mounting portion of the housing case. A box-shaped housing for a control device that reinforces the strength of the bottom of the vehicle body is provided integrally with the vehicle body, and an electric double layer capacitor charging device, a power regenerative braking device, a voltage control device, In addition to housing various control devices such as control devices, connectors are provided between the control devices and for connection to a drive motor having a power regenerative braking function, a control device, a driving device, a lighting device, etc. And

In this configuration, not only the storage case for the electric double layer capacitor but also the electric double layer capacitor charging device,
A control device housing case for housing various control devices such as a power regenerative braking device, a voltage control device, and an operation control device is also provided integrally with the vehicle body. Therefore, the strength of the vehicle body can be further increased, and a space for accommodating various control devices can be secured without compressing the volume of the payload portion.

A third invention is characterized in that, in the electric vehicle powered by the large-capacity electric double-layer capacitor according to the second invention, the electric vehicle is an electric vehicle utilizing electric power regenerative braking. Specifically, the drive motor has a power regenerative braking function, and a power regenerative braking device is housed in the control device housing case in addition to the various control devices. ,

With the above-described structure incorporating the power regenerative braking function, smooth and high-precision braking can be achieved, and the braking regenerative power generated at every braking is stored in the electric double layer capacitor, so that the vehicle weight is reduced. Significantly extending the traveling distance becomes possible in combination with the reduction effect.

When a chemical battery is used as a driving power source, the chemical battery converts electrical energy into chemical energy and stores the power. Therefore, the braking regenerative power generated during a very short time during braking is not stored. I can't get it. That is,
With a combination of a chemical battery and a power regenerative braking device, even if smooth braking can be achieved, the traveling distance cannot be extended by storing the braking regenerative power. On the other hand, an electric double layer capacitor stores electric energy as it is, and therefore can sufficiently store electric power generated within a very short time of several seconds to several minutes. The above-described operation and effect can be realized only in an electric vehicle in which a multilayer capacitor and a power regenerative braking device are combined.

According to a fourth aspect of the present invention, there is provided an electric vehicle having a frame for utilizing electric charges charged in an electric double layer capacitor as driving power for a power device such as an electric motor, wherein the electric vehicle is made of a structural material of the frame. A box-shaped housing case for an electric double layer capacitor that is provided integrally with a frame to reinforce the strength of the vehicle body bottom and that is combined with at least a floor plate of the vehicle body to form a closed box. The electric double layer capacitor housing case includes an electric double layer capacitor, wiring between capacitors, and a connector for connecting to an external device.

In the above-described configuration, the housing for the electric double layer capacitor is provided integrally with the frame in the window-like portion made of the structural material of the frame, so that the housing for the electric double layer capacitor reinforces the strength of the frame. And also functions as a support member for supporting the floorboard from below. Therefore, the strength of the vehicle body is greatly improved. Further, since the electric double layer capacitor is housed in such a housing case, the capacity of the payload portion is not sacrificed. Furthermore, by providing an electric double layer capacitor housing case on the entire bottom of the vehicle body and housing a large number of electric double layer capacitors therein, the capacity can be increased without sacrificing the volume of the payload portion. The power of the vehicle can be increased and the mileage can be extended without reducing the volume of the portion.

According to a fifth aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double-layer capacitor according to the fourth aspect of the present invention. A housing case for housing a control device such as a control device for a power supply or a driving motor is dispersedly arranged.

According to this configuration, the outside of the frame structural material is effectively used. According to this configuration, each device and wiring between the devices required for the electric vehicle can be arranged in a block, so that the vehicle body structure can be further improved. Simplification and weight reduction can be achieved.

The sixth invention is characterized in that the electric vehicle powered by the large-capacity electric double layer capacitor according to the fifth invention is an electric vehicle utilizing electric power regenerative braking. Is characterized in that the driving motor has a power regenerative braking function, and a power regenerative braking device is housed in the housing case.

According to this configuration, the same function and effect as those described in the third aspect can be obtained.

According to a seventh aspect of the present invention, there is provided an electric vehicle powered by the large-capacity electric double layer capacitor according to the third or sixth aspect, wherein each of the four wheels is provided with a motor having a power regenerative braking function. It is characterized by having.

When an electric motor having a power regenerative braking function is provided for each of the four wheels, the braking performance is further smoothed,
The small turning property is also improved, but the following unique effects can be obtained. That is, if an electric motor having a power regenerative braking function is provided for each of the four wheels, a larger current will be required. Therefore, it is necessary to make the wiring thicker and the wiring of the electric system becomes complicated. According to the present invention, for example, as shown in FIG. 6, capacitors and various devices and wirings and connection connectors related to the capacitors are housed in blocks distributed in various places on the bottom of the vehicle body so as to block between capacitors, between capacitors and devices, between devices and motors. The structure is such that the wiring distance between them can be reduced. Therefore, according to the present invention, even if an electric motor having a power regenerative braking function is provided for each of the four wheels, the wiring is not complicated, and the increase in the vehicle weight due to the wiring is small.

According to an eighth invention, in the electric vehicle powered by the large-capacity electric double-layer capacitor according to any one of the first to seventh inventions, the case for the electric double-layer capacitor is made of an insulating material, Alternatively, it is configured such that an insulating material is lined, and wiring between the electric double layer capacitors and a connector for connection to the outside are printed on the inner surface of the housing case.

If the housing case is made of an insulating material or has an insulating material lined, it is possible to prevent electric leakage and print wiring such as wiring between electric double layer capacitors on the inner surface of the housing case. In the case of the printed wiring, the weight increase accompanying the wiring is small, which contributes to the reduction of the weight of the vehicle body. In addition, since the housing case is a closed box, the printed wiring is less likely to be damaged.

[0025]

Embodiments of the present invention will be described below.

According to the present invention, a housing for a large-capacity electric double-layer capacitor and a housing for a control device are dispersedly arranged in a housing space provided at the bottom of a vehicle body, for example, in the case of an automobile having a monocoque structure. In the case of the above-mentioned automobile, it is dispersed and arranged in the accommodation space provided in the frame portion.
These housing portions are configured with a box-shaped housing case for an electric double layer capacitor that forms a closed box in combination with at least a floor plate of a vehicle body, a housing case for a control device having a similar shape, and the like. The storage case is provided integrally with the vehicle body or the frame. The function as a reinforcing material for improving the strength of the vehicle body, the housing for the electric double layer capacitor and various devices, the connection line housing for the electric double layer capacitor, the connection with the wheels and the motor assembly, etc. Provided for multipurpose use.

The case for accommodating the electric double layer capacitor is formed of the same material as that of the vehicle body or frame of the automobile, for example, a steel plate, and integrated with the vehicle body by means such as welding or bolting. In addition, since the housing case for the capacitor is made of high-strength plastic, it can be used also as a connection bus support and a terminal base for the electric motor.

FIG. 1 is a view showing a first structure of an embodiment of the present invention in which an electric double layer capacitor accommodating portion is provided on a floor portion of a vehicle body or a frame of an electric vehicle. In FIG. 1, 11 is a vehicle body, 12 is a housing case for an electric double layer capacitor, 13 is a front wheel, a front wheel assembly including a motor and a bearing having a power regeneration function during braking, 14 is a rear wheel, power during braking. A rear wheel assembly including a motor having a regenerating function and a bearing, 15 is a steering device, and 16 is a rear seat or a luggage compartment.

FIG. 2 shows the main part of the body upper part and the bottom part of the embodiment of FIG. 1 with the floor plate removed, and the same parts as those in FIG. 1 are denoted by the same reference numerals. A housing case 12 is provided at the bottom of the vehicle body as a housing for the electric double layer capacitor, and houses the electric double layer capacitor via a cushioning material as described later. Before and after this storage case, other storage cases 101 and 102 for storing control devices are provided.

FIG. 3 is a view showing the structure of an embodiment in which the accommodating portion 12 for the electric double layer capacitor is provided inside the frame of the electric vehicle using the frame 19, and FIG.
It is a top view in the state where the body was removed. Current automobiles, especially passenger cars or wagon cars, usually employ a so-called monocoque body and do not use a frame. However, in small luggage carriers,
Because of the use of various bodies suitable for loading cargo, it is also an effective means to assemble a standard traveling part using a frame and attach a body 11 suitable for the intended use to a completed vehicle. .

In the case of a structure having a frame, an accommodating case 12 for an electric double layer capacitor serving also as a bottom plate and a reinforcing plate is formed in a frame 19, and in addition to the original function of receiving the load, the internal space is accommodated in the accommodating portion. Use it effectively as The frame itself is made of steel so as to maintain sufficient strength, and the housing case 1 separately made inside is made of steel.
2 may be fixed. Although not shown, a detachable floor plate also serving as a cover plate is fixed to the floor portion including the capacitor housing case with bolts or the like, and is laid. Thereby, the storage case is sealed, and at the same time, the floor of the automobile is formed.

FIG. 5 shows an embodiment in which a housing case for housing the electric double layer capacitor and the main control equipment is provided at the bottom of the vehicle body, and only the bottom is seen from above. 511,
Reference numerals 513 and 515 denote housing cases for housing the electric double-layer capacitor and the main control device. The housing case is made of a material obtained by pressing and molding an iron plate and lining an insulating material therein, or Molded synthetic resin with high strength is used. This housing case can be made to reinforce the strength of the bottom of the body, or be made as a structure integral with the bottom. However, when the bottom is also used, it is desirable that the bottom be removable so that the bottom can be replaced.

A compartment for accommodating the electric double-layer capacitor 512 is provided at the center of the housing case 511, a slight gap is provided between the inner wall of the case and the capacitor, and the elastic packing material is filled and fixed. I do. Thus, mounting can be performed while reducing vibration and impact from the vehicle body. The packing material may be a material such as styrene foam, or may be foamed after filling with a liquid resin.

An electric vehicle is used to control a motor for driving four wheels, a brake device, and other electric systems.
Requires several controllers. These control devices include speed control, power distribution control of front wheels and rear wheels, speed difference control of inner and outer wheels of rear wheels during turning, power regeneration control during braking, brake control, and the like. In addition to the above, control devices such as charging of the electric double layer capacitors, voltage balancing between the capacitors, voltage stabilization, and charging control of the capacitors with the power recovered by the power regenerative braking are required as power sources. These are mainly electronic control devices, which are separately mounted on the housing cases 512, 513 or appropriate portions of the vehicle body. The arrangement of those control devices is common to FIG. 6 described later, and the description thereof will be referred to.

FIG. 6 shows an embodiment in which components such as a power supply, a charger, and a controller are incorporated inside and outside a frame in an electric vehicle using a frame. Inside the frame, electric double layer capacitors 611, 61
5 housing cases 612 and 618, respectively.

As the material of the housing case, a material formed by pressing an iron plate and lining an insulating material therein, or a material formed by molding a strong synthetic resin is used. When the storage case simply has a function as a storage portion of the electric double layer capacitor, it is sufficient that the storage case has a strength capable of protecting the capacitor against external impact. However, when the frame also functions as a reinforcing material, it is necessary to provide a strength that satisfies a design value with respect to stress such as bending and twisting of the frame.

When the electric double-layer capacitors are housed in the housing cases 612 and 618, a gap 613 is provided between the housings 612 and 618 so that the external double-layer capacitor can be fixed by absorbing external impact, and is filled with an elastic material. A series connection wiring 614 is provided between the capacitors. This part can adopt a structure that serves both as an insulator and a cushioning material.

The housing case 6 is provided on a part of the outside of the frame.
A device such as a charger 661, 662, a cord reel 663 for connecting to a commercial power supply or a power supply dedicated to charging is housed therein. An electric double layer capacitor 651 for supplying power for control, lighting, and the like is accommodated in the accommodation case 655. However, the electric double layer capacitor 61 for traveling is used as a power source for control, lighting, and the like.
1 and 615 can also be used. In this case, the electric double layer capacitor 651 does not need to be provided independently.

However, the driving electric double layer capacitor has a large load fluctuation, and sometimes uses a voltage higher than a standard voltage as a power supply voltage of an automobile for driving an electric motor. Therefore, it is preferable to provide a separate power supply for control and illumination.

The housing cases 641 to 644 are mounted on the outside of the frame, and control devices for sufficiently exhibiting various functions including the power regeneration function of the motor provided on each wheel, control devices for various lamps, and the motor are provided. And the like. The accommodation case 67 is an accommodation part for devices such as a steering device, an accelerator, and electric and mechanical brakes or their control devices.

In the electric vehicle of the present invention, electric motors are provided on four wheels dispersedly and electric power regenerative braking is used at the time of braking. Therefore, wiring of an electric system is more complicated than that of a general vehicle driven by an internal combustion engine. Becomes Also, the current capacity of the power wiring is increased. Further, since the power supply, the charger, the control device, and the like are dispersedly arranged, the electric wiring for control is more complicated than that of a conventional vehicle. Therefore, electric wiring can be realized by a wire harness using conventional electric wires.
Wiring can be streamlined by providing necessary internal wiring and a connector for connection to the outside.

The above case is combined with a floor plate to form a closed box structure. However, unlike a chemical battery, an electric double layer capacitor does not generate gas at the time of charging and discharging, and also generates heat. Since there is little, there is no particular inconvenience even if a closed structure is adopted, but by adopting a closed structure, the effect of reinforcing the vehicle body is enhanced and the effect of preventing intrusion of dust and mud is obtained.

Since the voltage used in the electric vehicle of the present invention is as low as 12 volts, 24 volts, or 48 volts, the requirements for insulation are not so severe, and in addition to the technology of printed wiring, there is a slight demand. By reinforcing the insulating material, even complicated wiring can be realized at low cost. However, it may have a power regeneration function during braking, and only the power system with a large current capacity
Inexpensive conductor means can be obtained by coating a copper strip having a sufficient cross-sectional area with an insulating material or sandwiching it with an insulating plate, and can also be used for mechanical connection of each capacitor.
Thus, by connecting the respective cases with the required connectors, the system is completed, and it is possible to reduce the manufacturing cost, simplify the structure, and rationalize maintenance and failure repair.

The connectors are preferably provided at the ends of each case so that the connection lines between the cases are minimized. In some cases, the connection lines must be independently provided inside the case, but the wiring on the printed circuit board of the control circuit can also be used.

The embodiment of FIG. 6 tends to be heavier than a so-called monocoque body in that a frame is used. However, in an automobile using an electric double layer capacitor as a power source, the capacitor and the control By being able to incorporate the device, being able to assemble most of the functions of the car, including the wheels, electric motors and steering gear, by mounting a body and floor plate suitable for the intended use on this chassis, There is an advantage that various types of vehicles can be provided.

The automobile of the present invention can transport a large amount of cargo over long distances. However, if anything, it is suitable for the purpose of delivering a small amount of luggage with extremely low operation sound by making small turns and taking advantage of the features of the electric vehicle. Such a feature can provide a car that has the advantage of being available for delivery early in the morning in a quiet residential area, or even late at night. Also,
As a clean vehicle with no exhaust gas, it can lead and run marathons, amusement and golf course vehicles, public vehicles,
Also suitable as a bus.

Also, unlike batteries utilizing chemical action,
The charging time of an electric double layer capacitor is very short, so if you set a charging station at the required distance,
Even if the power of the capacitor is consumed, the power can be replenished in a short time. Therefore, it can be operated for a long time as a bus, a delivery truck, or a taxi in a limited area, which runs on a fixed route and has a large number of braking operations, and its utility value is high.

By the way, in the present invention, an electric vehicle having a power regenerative braking function in which a power regenerative braking mechanism is incorporated and the regenerated power is stored in an electric double layer capacitor can be provided. In addition to effective braking, the effect of reducing the weight of the vehicle and the effect of regenerating power can be combined to significantly extend the mileage. Here, in the case of a configuration having a power regenerative braking function, the structure of the power regenerative braking device or the electric double layer capacitor itself is not particularly limited, and a known power regenerative braking unit and a known electric double layer capacitor can be widely used. However, for electric double layer capacitors,
The power regenerative braking device is accommodated in 512 of FIG. 5 and 611 and 615 of FIG.
It is accommodated in 641, 642, 643, 644 of FIG.

In general, a braking / generating (low speed) motor is provided near the wheels together with the original traveling (high speed) motor, and the circuit is switched from the high speed motor to the low speed motor when performing regenerative braking. adopt. By this switching, at the time of braking, the low-speed side electric motor is operated at the synchronous speed or higher, and functions as a brake and generates power until the synchronous speed is reached, so that the electric power is stored in the electric double layer capacitor.

Such electric power regenerative braking is a well-known technique widely used in, for example, high-speed railway vehicles such as Shinkansen, subway vehicles, braking in the down direction of mountain railways, and also in cranes and elevators. In the invention, specific configurations such as the number of motor poles, a circuit switching mechanism, a connection method between the motors, an adjustment mechanism with a mechanical brake used for securing an accurate stop position, an emergency stop, and the like are known in the art. May be set arbitrarily based on Therefore, the description about these is omitted.

[0051]

As apparent from the above description, according to the present invention, a large-capacity electric double-layer capacitor is used as a power source for an electric vehicle, and a box-shaped housing case for the electric double-layer capacitor serving as a housing for the capacitor is provided. By combining with a part of the vehicle body or the frame, the electric double layer capacitor is accommodated and the vehicle body is reinforced. Therefore, according to the present invention, an extremely remarkable effect of simultaneously improving the strength of the vehicle body, reducing the weight of the vehicle body, and increasing the volume of the payload portion can be obtained.

Further, in the present invention, the electric double layer capacitor, the control device, the wiring and the like are housed in a closed case, which is a closed box, so that the device and the like can be protected from dust and mud soaring during traveling. Are blocked and accommodated at predetermined locations, so that the effect of rationalizing and simplifying the vehicle body structure and facilitating manufacture and maintenance can be obtained. Further, since the floor surface is reinforced by the storage case, the floorboard can be made thin.

Further, when adopting an assembly of wheels and an electric motor and adopting a structure of four-wheel independent drive, electric power regenerative braking, and electronic control, in addition to reducing the weight of the vehicle body and reducing the cost by rationalizing and simplifying the structure, traveling The extension of the distance and the smooth braking are realized. As described above, according to the present invention, it is possible to improve the drawbacks of an electric vehicle such as a short traveling distance without incurring a significant increase in cost as compared with the related art.

[0054]

[Brief description of the drawings]

FIG. 1 is a diagram showing a first structure of an embodiment in which an electric double-layer capacitor and an accommodating portion for a control device are provided on a floor portion of a vehicle body or a frame of an electric vehicle according to the present invention.

FIG. 2 is a cross-sectional view of a main part of a body upper part and a bottom part of the embodiment of FIG. 1 with a floor plate removed.

FIG. 3 is a diagram showing a structure of an embodiment in which a housing for an electric double layer capacitor is provided inside an electric vehicle using a frame, and a housing for a control device is provided around the housing.

FIG. 4 is a plan view of the embodiment of FIG. 3 with the body removed.

FIG. 5 is a diagram showing an accommodation state of an electric double layer capacitor, a control device, and the like at the bottom of the vehicle body in the embodiment of FIG. 2;

FIG. 6 is a diagram showing a housing state of an electric double layer capacitor, a control device and the like inside a housing case mounted inside and outside a frame in the embodiment of FIG. 4;

DESCRIPTION OF SYMBOLS 11 Vehicle body 12 Housing for electric double layer capacitor 13 Front wheel assembly 14 Rear wheel assembly 15 Steering device 16 Rear seat or luggage room 19 Frame 101, 102 Housing for control device 511, 513, 515 Electric double layer Housing for capacitors and control equipment 512 Electric double-layer capacitors 611, 615 Electric double-layer capacitors 612, 618 Housing for electric double-layer capacitors and control equipment 614 Wiring for serial connection 641, 642, 643, 644 Equipment for control equipment, etc. Case 651 Electric double layer capacitor for control and lighting power supply 661, 662 Charger for electric double layer capacitor 663 Charging cord reel 665 Housing case for charger etc. 67 Operation control device housing case

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Takeshi Maeda 4-1-2, Hirano-cho, Chuo-ku, Osaka-shi, Osaka Inside Osaka Gas Co., Ltd. (72) Keiji Sakai 4-chome, Hirano-cho, Chuo-ku, Osaka, Osaka No. 1-2 Inside Osaka Gas Co., Ltd. (72) Inventor Takahiko Ito 3-29-6 Todoroki, Setagaya-ku, Tokyo

Claims (8)

[Claims] 1. An electric vehicle having no frame that uses electric charges charged in an electric double-layer capacitor as driving power for a power device such as an electric motor, wherein the electric vehicle is provided integrally with a vehicle body at a bottom portion of the vehicle body. And a box-shaped electric double layer capacitor protective case that forms a closed box in combination with at least the vehicle body floor plate while reinforcing the strength of the vehicle body bottom portion. An electric vehicle powered by a large-capacity electric double-layer capacitor, wherein an electric double-layer capacitor, wiring between capacitors, and a connector for connecting to an external device are arranged. 2. A box-shaped control device protection case for reinforcing the strength of the vehicle body bottom is provided integrally with the vehicle body at a required portion of the vehicle body bottom other than the mounting position of the electric double layer capacitor protection case. Various control devices such as an electric double layer capacitor charging device, a voltage control device, and an operation control device are accommodated in the protection case for the control device, and between the control devices, a driving motor, a control device, and an operation device. An electric vehicle powered by the large-capacity electric double-layer capacitor according to claim 1, further comprising a connector for connecting to a lighting device or the like. 3. The drive motor has a power regenerative braking function, and a power regenerative braking device is housed in the protection case for the control device in addition to the various control devices. An electric vehicle powered by the large-capacity electric double-layer capacitor according to 2. 4. An electric vehicle having a frame that uses electric charges charged in an electric double layer capacitor as driving power for a power device such as an electric motor, wherein the electric vehicle has a window shape formed of a frame structural material. A box-shaped electric double-layer capacitor protective case that is provided integrally with the frame to reinforce the strength of the vehicle body bottom portion and that is combined with at least the vehicle body floor plate to form a closed box. An electric double-layer capacitor, a wiring between the capacitors, and a connector for connecting to an external device are arranged in a protective case for the electric double-layer capacitor; Car. 5. A housing for accommodating a control device such as a control device for an auxiliary power supply or a driving motor, which is arranged outside the structural member of the frame other than the position of the wheel device. An electric vehicle powered by the large-capacity electric double-layer capacitor according to claim 4. 6. The large-capacity electric double layer capacitor according to claim 5, wherein the driving motor has a power regenerative braking function, and a power regenerative braking device is housed in the housing case. Electric vehicle powered by. 7. An electric motor having an electric power regenerative braking function is provided for each of the four wheels.
An electric vehicle powered by the large-capacity electric double-layer capacitor according to claim 6. 8. The protective case for an electric double layer capacitor is made of an insulating material or is lined with an insulating material, and the inner surface of the protective case has wiring between the electric double layer capacitors and the outside. 8. An electric vehicle powered by a large-capacity electric double layer capacitor according to claim 1, wherein said connection connector is printed and wired.