JPH04299029A - Electric motor vehicle - Google Patents

Abstract

PURPOSE:To use a quick charger while mounting an automotive charger on a vehicle by using the charger also as a separate disposition type. CONSTITUTION:A main battery box 3 containing one or more main cells 4, and an automotive charger 7 detachably provided in the box 3 and electrically connected to the cells 4, are provided. A first plug 5 for connecting a separate type quick charger is provided at the cell 4, and a second plug 9 for connecting an external AC power source is provided at the charger 7.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric vehicles, and more particularly to electric vehicles equipped with an on-vehicle charger.

0002

BACKGROUND ART Conventionally, when charging a main battery as a power source of an electric vehicle, a separate charger 30 for high-speed charging as shown in FIG. 8 has been used in most cases. However, such a separate charger 30 is not suitable for use in a vehicle, and the places where it can be charged are extremely limited. (For example, see Japanese Patent Laid-Open No. 57-201719, etc.).

0003

[Problem to be Solved by the Invention] However, since the on-board charger installed in the above-mentioned car with a charger is built into the car body and is difficult to remove, it is difficult to use it as a separate charger. It was difficult to use it for other cars. In addition, since the charger for the above-mentioned car with a charger was connected to a household AC power source, it took a long time to charge. An electric vehicle that can use a stationary charger has been long-awaited.

0004

[Object of the Invention] The present invention has been made in view of the problems of the prior art, and its purpose is to enable the on-vehicle charger to be used separately, and to enable the on-vehicle charger to remain installed in the vehicle. However, the aim is to provide an electric vehicle that can use a separate charger for fast charging.

[0005]

[Means for solving the problems] The electric vehicle of the present invention includes:
The vehicle includes a main battery box housing one or more main batteries, and an on-vehicle charger that is detachably attached to the main battery box and electrically connected to the main battery. The main battery is provided with a first plug for connection to a separate charger for high-speed charging, and the in-vehicle charger is provided with a second plug for connection to an external AC power source. This configuration attempts to achieve the above-mentioned purpose.

[0006]

[Operation] Since the on-vehicle charger is detachably installed in the main battery box, it is easy to remove it. A separate charger for fast charging can be connected to the first plug. Furthermore, an external AC power source can be connected to the second plug.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to FIGS. 1 to 7.

FIG. 1 shows an electric vehicle 1 according to an embodiment of the present invention. A main battery box 3 is mounted and fixed on the body 2 of this electric vehicle 1. A total of ten main batteries 4 are stored inside the main battery box 3, and one of these
Although the zero main batteries 4 are not shown here, they are actually connected in series. These main batteries 4 are connected to a first plug 5 for connecting to a separate charger for high-speed charging.
The main battery 4 is electrically connected to an on-vehicle charger 7 via a charging plug 8. The on-vehicle charger 7 is provided with a second plug 9 for connection to a household AC power source as an external AC power source. Here, the first plug 5 and the second plug 9 are provided outside the vehicle in a desired state. Therefore, in this embodiment, a separate charger and an external AC power source can be easily connected to these plugs 5 and 9.

FIG. 2 shows a charging circuit diagram in this embodiment. In this figure, the positive electrode of the main battery 4 is connected to the positive terminal of the first plug 5 via a diode 11 for preventing backflow. The positive terminal of the main battery 4 is connected to the positive terminal of the charging plug 8 via the relay switch 12, and the negative terminal of the charging plug 8 is connected to the positive terminal of the charging plug 8.
It is connected to the negative electrode of the main battery 4. Further, a relay coil 13 is inserted between the positive terminal and the negative terminal of the first plug 5, and the negative terminal of the first plug 5 is connected to the negative electrode of the main battery 4. Here, the relay coil 13 and the relay switch 12 constitute a relay that detects whether charging is being performed via the first plug 5. That is, when a separate charger for high-speed charging is connected to the first plug 5 and the main battery 4 is being charged via the first plug 5, the relay coil 13 is energized and the relay is activated. The switch 12 is opened to prevent the main battery 4 from being charged from the on-vehicle charger 7 via the charging plug 8. On the other hand, if a separate charger for high-speed charging is not connected to the first plug 5,
Since the relay coil 13 is not energized, the relay switch 12 is closed, and the main battery 4 is charged from the on-vehicle charger 7 via the charging plug 8.

FIG. 3 shows the interior of the vehicle with the rear door open, and shows the vehicle charger 7 attached to the main battery box 3. Here, the attachment of the on-vehicle charger 7 to the main battery box 3 and the vehicle body 2 will be explained. On the rear end surface of the main battery box 3, there is a main battery box reinforcing stay 14 whose central part of the cross section protrudes toward the rear of the vehicle body, as shown in FIG.
Two main battery box reinforcing stays 14 are fixed at a predetermined interval, and the main battery box reinforcing stays 14 are provided with elongated holes 15 for mounting the on-vehicle charger 7 as shown in FIG. Correspondingly, the front end surface of the on-vehicle charger 7 is provided with mounting screws 16, 16 as shown in FIGS. 4 and 6. The on-vehicle charger 7 is detachably attached to the main battery box 3 by hooking the screws 16 into the elongated holes 15. In addition, on the four corners of the bottom of the on-board charger 7, there are
As shown in the figure, a leg 17 having an L-shaped cross section is provided.
Correspondingly, as shown in FIGS. 4 and 7, the floor panel of the vehicle body 2 is provided with two stays 19 on each side, which are rotatable around a support shaft 18 (in FIG. , only the two on the left are shown, but there are actually two on the right.) A recess 20 is formed in the floor panel portion where the foot 17 is placed so that the foot 17 engages therein, and the foot 17 is placed in the recess 20. The legs 17 are fixed to the floor panel by stays 19. Therefore, in this example,
The on-vehicle charger 7 can be easily removed from the main battery box 3 by simply rotating the stay 19 around the support shaft 18 to release the fixation of the legs 17, lifting the on-board charger 7 a little and pulling it toward you. It has become.

As explained above, according to this embodiment,
Even if the in-vehicle charger 7 is mounted on the vehicle body and electrically connected to the main battery 4, simply connecting the separate charger for high-speed charging to the first plug 5 will allow the separate charger to be connected to the main battery 4. Charging can be performed using a charger, and charging using the in-vehicle charger 7 can be easily performed anywhere by connecting a household AC power source to the second plug 9 via a connection cable or the like. Moreover, since the in-vehicle charger 7 itself can be easily removed from the main battery box 3 without using any tools, it can be used for other purposes, for example, as a separate charger for charging other electric vehicles. can be used.

0012

[Effects of the Invention] As explained above, according to the present invention,
A separate high-speed charging charger can be connected to the first plug, so even if the in-vehicle charger is mounted on the vehicle and connected to the main battery, the separate high-speed charger can be connected to the first plug. It is possible to charge the battery, and since an external AC power source can be connected to the second plug, if a household AC power source is used as the external AC power source, charging using the on-vehicle charger can be easily carried out anywhere. provides an unprecedented and excellent electric vehicle in which the on-vehicle charger can be easily removed, so that the on-vehicle charger can also be used as a separate charger for charging other electric vehicles. be able to.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing the configuration of a charging circuit in the embodiment of FIG. 1;

FIG. 3 is a diagram showing the interior of the vehicle with the rear door open.

FIG. 4 is a view from above of the on-vehicle charger attached to the main battery box.

FIG. 5 is a diagram showing an elongated hole for attaching an on-vehicle charger provided in the main battery box reinforcing stay.

FIG. 6 is a diagram showing mounting screws provided on the on-vehicle charger.

FIG. 7 is a diagram showing a leg portion of the on-vehicle charger.

FIG. 8 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

3 Main battery box 4 Main battery 5 First plug 7 In-vehicle charger 9 Second plug

Claims (1)

[Claims] Claim 1: A main battery box containing one or more main batteries, and an on-vehicle charger detachably installed in the main battery box and electrically connected to the main battery,
A first battery for connecting a separate charger for high-speed charging to the main battery.
An electric vehicle characterized in that the on-vehicle charger is provided with a second plug for connecting to an external AC power source.