JPH10147153A - Electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a degree of freedom of a layout for a battery by curving a suspension arm projectingly upward. SOLUTION: In an electric vehicle 10, a rear axle 12 is supported by means of a center wishbone suspension arm 11 which is curved so as to be protruded upward, and below a chassis 13, a plurality of batteries 14 are mounted. Especially, the suspension arm 11 is set so that its curvature is gradually increased toward the rear axle 12 side. The one end 11a of the suspension arm 11 is supported freely rotationally on the chassis 13 side, while the other end 11b is connected to the central part, of the rear axle 12 via a universal joint 15. Therefore, the suspension arm 11 does not interfere with a mounting space 17 for the batteries because of its curved shape when the suspension arm 11 is oscillated vertically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electric vehicle, and more particularly, to an electric vehicle having a rear axle supported by a center wishbone suspension arm and a battery mounted below a chassis.

[0002]

2. Description of the Related Art Conventionally, batteries and related parts have been
2. Description of the Related Art There is an electric vehicle which is arranged in an empty space without changing the type of a vehicle body or a suspension of a conventional vehicle equipped with an internal combustion engine. FIG. 2 shows such an electric vehicle 1. In this electric vehicle 1, the rear axle 3 is supported by the center wishbone suspension arm 2, and a plurality of batteries 5 are mounted below the chassis 4. In FIG. 2, reference numeral 6 denotes a rear wheel.

[0003]

In the conventional electric vehicle 1, since the center wishbone suspension arm 2 swings up and down, it is necessary to secure a swing space. For this reason, the mounting space of the battery 5 has been narrowed by this space. Therefore, the degree of freedom of the layout of the battery 5 is reduced, and the number of mounted batteries is limited. This also caused a loss of balance between the front and rear of the vehicle.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is possible to increase the degree of freedom in battery layout, increase the number of mounted batteries, and improve the balance between the front and rear of a vehicle body. An object of the present invention is to provide an electric vehicle capable of performing the following.

[0005]

In order to achieve the above object, according to the present invention, in an electric vehicle having a rear axle supported by a center wishbone suspension arm and a battery mounted below a chassis, the suspension arm is moved upward. It is configured to be curved so as to protrude.

[0006]

Embodiments of an electric vehicle according to the present invention will be described below in detail with reference to the accompanying drawings. FIG.
1 shows an embodiment of an electric vehicle according to the present invention. In the electric vehicle 10 of the present embodiment, a rear axle 12 is supported by a center wishbone suspension arm 11 which is curved so as to protrude upward, and a plurality of batteries 14 are mounted below a chassis 13.

[0007] In particular, the suspension arm 11 is set so that its curvature gradually increases toward the rear axle 12 side. One end 11a of the suspension arm 11 is rotatably supported on the chassis 13 side, and the other end 11b is provided at the center of the rear axle 12 at the universal joint 1
5 are connected. In FIG. 1, 16
Is a rear wheel.

In this embodiment, the suspension arm 11
Swings up and down, the suspension arm does not interfere with the battery mounting space 17 due to its curved shape. For this reason, the battery mounting space 17 can be secured sufficiently large to the rear side of the vehicle body.

Therefore, the degree of freedom of the layout for mounting the battery 14 can be increased, and the number of mounted batteries can be increased. In addition, since the batteries 14 can be arranged evenly across the front and rear of the vehicle body, the balance between the front and rear of the vehicle body can be improved.

[0010]

As described above, according to the electric vehicle of the present invention, the rear axle is supported by the center wishbone suspension arm and the battery is mounted below the chassis. The following effect can be obtained because the projection is curved.

That is, according to the present invention, with the above-described structure, a sufficiently large battery mounting space can be secured up to the vicinity of the rear axle on the rear side of the vehicle body.
Therefore, the degree of freedom of the layout for mounting the battery can be increased, and the number of mounted batteries can be increased. In addition, since the batteries can be arranged evenly across the front and rear of the vehicle body, the balance between the front and rear of the vehicle body can be improved. In addition, the number of auxiliary devices arranged at the lower portion of the chassis can be increased.

[Brief description of the drawings]

FIG. 1 is a sectional view conceptually showing one embodiment of an electric vehicle according to the present invention.

FIG. 2 is a sectional view conceptually showing one embodiment of a conventional electric vehicle.

[Explanation of symbols]

 Reference Signs List 10 electric vehicle 11 center wishbone suspension arm 12 rear axle 13 chassis 14 battery 15 universal joint 16 rear wheel

Claims (1)

[Claims] 1. An electric vehicle in which a rear axle is supported by a center wishbone suspension arm and a battery is mounted below a chassis, wherein the suspension arm is curved so as to protrude upward.