JP2001016706A - Detachable battery in electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve serviceability in charging an electric vehicle for its popularization. SOLUTION: Battery packs the shape and interface of which have been unified and standardized are mounted on the bottom of the floor of an electric vehicle. For the supply of electric power, discharged battery packs are replaced with the battery packs pre-charged as an existing gas station and the like. This system can solve the problem of the charging time, because the supply of electric power is performed by the simple replacement with the charged batteries. Also, by mounting a plurality of the battery packs and by controlling the connections at the vehicle side, these battery packs are applicable to vehicles for different uses and electric power can be used in the similar sense of a fuel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to power supply for an electric vehicle, and more particularly, to a shape of a battery mounted on the electric vehicle and a method of handling the battery.

[0002]

2. Description of the Related Art Conventionally, the power source of an electric vehicle is fixed,
There is a tendency to improve the charging capacity and charging speed of the battery itself. The progress has been impressive, but far short of the convenience of a gasoline-powered car that can be refueled in minutes.

[0003]

The charging time of an electric vehicle has been shortened more than before due to the improvement in battery performance, but has a problem that it takes much longer time than gasoline refueling.

In consideration of battery deterioration, many batteries must be discharged and then charged, which is one of the causes of prolonged charging time.

[0005] At present, there are hardly any charging places for electric vehicles, and this is a bottleneck in the spread of electric vehicles. Also, if the existing gas station is not involved in the charging business, there is a concern that the oil company will lose work with the transition from internal combustion engine vehicles to electric vehicles.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to enhance the convenience of charging an electric vehicle and promote its spread. It is.

[0007]

In order to achieve the above object, a detachable battery according to the present invention has a common external shape and interface, and a plurality of detachable batteries are attached to one electric vehicle so that they can be detached by human power or a method similar thereto. To load

[0008] The connection path of a plurality of mounted batteries can be controlled from the outside (the main body of the electric vehicle), and by changing the connection path according to the situation, useless discharge is prevented.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, a plurality of battery packs 1 are arranged between a wheel B and a lower part of the floor of a vehicle body A viewed from the side.

FIG. 2 shows the arrangement of the battery packs as viewed from above. The battery pack 1 is pulled out in the direction of arrow 2 and detached by the reverse operation.

FIG. 3 shows a battery pack having a handle 4 in a shape of a battery pack and a shape of a joint between the battery pack and the vehicle body.
The convex electrode 5 and the energization permission window 6 protruding on the opposite side are arranged. The vehicle body side joint C includes a concave electrode joint 7 and an energization permission projection 8.

An LED 9 and an optical sensor 10 are installed in the power supply permission window 6 of FIG. 4. When the battery pack is mounted, the power supply permission projection 8 of FIG. 3 enters the power supply permission window 6 of FIG. By blocking the light, the optical sensor 10 senses the attachment of the battery pack, and energizes the convex electrode 5 by an internal circuit.

A door 11 for protecting the battery pack 1 as shown in FIG.
Is installed.

The connection between the battery packs is controlled on the vehicle side, and the degree of freedom in setting the voltage and power consumption is adjusted so that it can be adjusted to the characteristics (motor, etc.) of each vehicle.

Since the present invention is configured as described above, the following effects can be obtained.

Since the power is supplied by replacing the charged battery, the problem of the charging time can be solved.

By mounting a plurality of battery packs and controlling the connection on the vehicle side, it is possible to cope with vehicles for different purposes and to use electric power in the sense of fuel.

Although the purpose of the spread of electric vehicles can be an ecological problem of reducing air pollution and global warming gas, the battery can be detached and only electric power can be bought and sold. By disconnecting the battery from the main unit, the manufacturer can manage the battery from production to disposal, and the battery can be easily recycled.

By taking the form of buying and selling only electric power, it is possible to make use of existing gas stations as an energy distribution business, and it is possible to maintain infrastructure at relatively low cost, and to continue business with existing gas stations. be able to.

If clean energy such as photovoltaic power generation or wind power generation is introduced into a power selling facility such as a gas station, it can contribute to CO2 reduction.

[0021] Since the energy sources of the electric vehicle can be centrally managed, even when new clean energy is devised, it is possible to respond immediately.

By sharing the battery interface, user options such as cost, capacity and quality are increased.

[Brief description of the drawings]

FIG. 1 is a side sectional view when a detachable battery is attached to an electric vehicle.

FIG. 2 is an upper perspective view when a detachable battery is attached to an electric vehicle.

FIG. 3 is a plan view from above of a detachable battery and a vehicle-body-side joint.

FIG. 4 is a plan view from above of a junction of the detachable battery.

FIG. 5 is a plan view of a detachable battery as viewed from the front of a joint.

FIG. 6 is a sectional view of a battery pack entrance / exit of the electric vehicle body.

[Explanation of symbols]

 Reference Signs List A body B wheel C body side joint 1 battery pack 2 arrow 3 battery pack entrance / exit 4 handle 5 convex electrode 6 energization permission window 7 concave electrode junction 8 energization allowance 9 LED 10 optical sensor 11 door

Claims (5)

[Claims] 1. A detachable battery pack for an electric vehicle, comprising a plurality of thin plate-shaped batteries. 2. The battery pack is mounted under the floor of an electric vehicle. 3. The battery pack shape and interface are standardized. 4. The charging time is reduced by exchanging a charged battery with an empty or low remaining battery. 5. When a battery pack is replaced, a used battery pack is traded in and a new battery pack is purchased, so that a user can purchase only substantial power.