JPH10129276A - Battery fixing structure for electric vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fill batteries in the lateral direction by narrowing the distance among the batteries, to reduce the number of parts, assembling man-hours and cost. SOLUTION: Pressing members 13 for pressing the upper ends of batteries 12, sharing stoppers 18 fixed to a battery tray 16 along the direction perpendicular to the pressing members 13, and relay members 20 for connecting the pressing members 13 to the sharing stoppers 18 are provided, upper regulating plate parts 30 and side regulating plate parts 31 facing the upper surfaces 24 and the side surfaces 27 of the batteries 12 are provided on the pressing members 13, the side regulating plate part 31 is arranged between side surfaces of two mutually adjacent batteries 12, and two batteries 12 arranged along the longitudinal direction are pressed by the common pressing member 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery fixing structure for an electric vehicle which is suitable for a case where a plurality of batteries are arranged and installed.

[0002]

2. Description of the Related Art An electric vehicle 1 as shown in FIG.
And a battery 4 shown in FIGS. 9 and 10 is disposed on the lower surface side of a low intermediate portion 3 which is located in the middle of the body frame 2 in the front-rear direction. FIG. 9 is a plan view showing a conventional battery fixing structure for an electric vehicle, and FIG.
FIG. 3 is a cross-sectional view taken along line AA of FIG. In the conventional battery fixing structure, a lateral stopper 5 along the longitudinal direction of the battery 4 (see FIG. 11) and a longitudinal stopper 6 along a direction perpendicular to the longitudinal direction of the battery 4 (see FIG. 12).
Are disposed on the battery tray 7 and the pressing members 8 for individually pressing the upper portions of the batteries 4 are used.

[0003] The flanges 5a and 6a of the horizontal stopper 5 and the vertical stopper 6 are fixed on the battery tray 7 by spot welding or the like, and a plurality of batteries positioned and arranged on the battery tray 7 are arranged. 4
Is screwed into the nut 10 fixed to the inner surface side with the bolt 9 inserted through the through hole 8b at the lower end of both legs 8a of each holding member 8 in alignment with the through hole 5b formed in the upper end plate of the lateral stopper 5. The holding member 8 is fixed on the battery tray 7 by stopping both ends of the holding member 8 at the corresponding lateral stoppers 5.

The plurality of batteries 4 fixed on the battery tray 7 are mounted on the electric vehicle 1 by mounting the battery tray 7 to a predetermined position of the vehicle body frame 2 via a mounting member (not shown). .

[0005]

However, in the above-described conventional battery fixing structure, since the lateral stopper 5 is disposed between the adjacent batteries 4 and 4, the distance between the batteries 4 and 4 is increased, and There is a disadvantage that the distance between the batteries 4 and 4 cannot be narrowed in the directions.
On the other hand, since the individual pressing members 8 are required, the number of required parts and the number of assembling steps are large, and the cost is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the related art, and has as its object to reduce the distance between batteries and to pack the batteries in the horizontal direction. Another object of the present invention is to provide a battery fixing structure for an electric vehicle, which can reduce the number of assembling steps and cost.

[0007]

In order to achieve the above object, the present invention provides a battery fixing structure for an electric vehicle for arranging and fixing a plurality of batteries on a battery tray. A holding member for holding, a stopper fixed to the battery tray along a direction intersecting the holding member, and a relay member for connecting the holding member to the stopper, wherein the holding member has an upper surface of a battery. And an upper regulating plate portion and a side regulating plate portion facing each other, and the side regulating plate portion is disposed between the side surfaces of the adjacent batteries.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric vehicle battery fixing structure according to an embodiment of the present invention will be described with reference to the drawings by taking as an example a case where two batteries are arranged in a longitudinal direction and three batteries are arranged in a transverse direction orthogonal to the longitudinal direction. This will be described in detail. FIG. 1 is a plan view showing a main part of an electric vehicle battery fixing structure according to an embodiment of the present invention, and FIG. 2 is a partially enlarged front view of FIG.

In the battery fixing structure for an electric vehicle according to this embodiment, a holding member 13 for holding the upper edge of the battery 12, a dual-purpose stopper 18 fixed to the battery tray 16 and serving as a stopping function for stopping the holding member 13, and a holding member A stopper 19 disposed in parallel with the member 13 and a stud bolt 20 as a relay member for connecting the holding member 13 to the dual-purpose stopper 18 are provided.

The battery 12 includes two battery groups 22 arranged three by three. Each battery 12
Has a convex portion 23 at the center of the upper surface, and the terminal 25 projects upward from a flat upper surface near both ends of the convex portion 23.

The pressing member 13 is a basic member 14 having an upper regulating plate 30 and a side regulating plate 31 attached to a long upper surface 24 and a long side surface 27 along the longitudinal direction of the battery 12, respectively (see FIG. 3). , As well as a combination member 15 (see FIG. 4) formed by combining two batteries. A side regulating plate portion 31 is disposed between the long side surfaces 27 of the adjacent batteries 12. The portion 32 projects outside the short side surface 28 along a direction perpendicular to the longitudinal direction of the battery 12.

The holding member 13 is connected to the battery 12.
When the cross section provided with the upper regulating plate portion 30 and the side regulating plate portion 31 facing the long upper surface 24 and the long side surface 27 in the longitudinal direction is used as the L-shaped basic member 14, the batteries 12 are arranged next to each other. Not left and right battery 12
As shown in FIG. 3, as shown in FIG. 3, the upper regulating plate 30 has through-holes 33 at the protruding portions 32 at both ends and the intermediate portion.

[0013] The holding member 13 is a combination member.
When used as 5, the two basic members 14 are combined back to back, and the side regulating plates 31 are fixed to each other by spot welding or the like, and have a T-shaped cross section. Are arranged along the longitudinal direction, and as shown in FIG.
Has a through hole 33 at a portion of one upper regulating plate portion 30 and a substantially central portion of the other upper regulating plate portion 30.

The dual-purpose stopper 18 is located at a position below both the protruding portions 32 of each holding member 13 and at an intermediate position therebetween.
At a position between the battery groups 22, 22 arranged one by one along a direction perpendicular to each holding member 13, as shown in FIG. And a flange 37 provided on the longitudinal edges of both side plates 39, the cross section of which is hat-shaped, a stopping function for stopping the plurality of pressing members 13, and the battery group 22. It also has a vertical positioning function.

A plurality of through holes 40 are formed in the upper end plate 38 of the grooved portion 36 in accordance with the arrangement interval of the pressing members 13, and are disposed concentrically in the respective through holes 40, and the nuts are provided on the back side. 41, the flange 37 is fixed on the battery tray 16 by spot welding, and the end of the battery 12 rests on the flange 37.
As shown in FIG.
, The battery group 22 is positioned in the vertical direction.

The stoppers 19 are arranged at both ends of each of the three battery groups 22 along the longitudinal direction of the battery 12, and have a groove-shaped portion 46 and a flange 47 similarly to the combined stopper 18, and have a hat cross section. A flange 47 is fixed on the battery tray 16 and one flange 47
The end of the battery 12 is placed on the upper side, and as shown in FIG. 1, one side plate 48 faces the lower part of the long side surface 27 of the battery 12 to position the battery 12 in the lateral direction.

The stud bolt 20 as a relay member is
As shown in FIG. 6, male threads 20
a, 20b, which are inserted through the through-hole 33 of the holding member 13 and the through-hole 40 of the dual-purpose stopper 18, and screw the lower male screw portion 20a to the nut 41 fixed to the dual-purpose stopper 18, and the upper male screw The nut 53 is screwed and fastened to the portion 20b to connect the holding member 13 to the dual-purpose stopper 18.

An assembling method according to the above-described battery fixing structure for an electric vehicle will be described. Battery tray 1
6 in advance at the predetermined location.
Is fixed. After screwing the male screw portion 20a at the lower end into each nut 41 and implanting each stud bolt 20, the six batteries 12 are positioned and arranged, and while the stud bolt 20 is inserted through the corresponding through hole 33, the holding member 13 The basic member 14 is arranged from above in the longitudinal direction to the upper edge of the left and right ends of the battery 12, and the combination member 15 is arranged between the rows of the batteries 12. Next, the nut 53 is screwed into the male screw portion 20b at the upper end and tightened.

It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. For example, the number of the batteries 12 constituting the battery group 22 may be two or four or more, and the present invention is applicable to the case where the number of the battery groups 22 is three or more. 12
May be used in common.

[0020]

According to the present invention, there is provided a pressing member for pressing an upper edge of a battery, a stopper fixed to a battery tray along a direction intersecting the pressing member, and a relay member for connecting the pressing member to the stopper. The pressing member is provided with an upper regulating plate portion and a side regulating plate portion facing the upper surface and the side surface of the battery, respectively. Since only the side regulating plate portion is interposed between the batteries, there is an effect that the interval between the batteries can be narrowed and the batteries can be packed in the lateral direction. Further, since a plurality of batteries arranged in the longitudinal direction can be pressed by the common pressing member, the number of required parts and the number of assembling steps can be reduced, and the cost can be reduced. Further, the holding member includes a basic member including an upper regulating plate portion and a side regulating plate portion, and a combining member formed by combining two basic members in a back-to-back manner and fixing them together. By commonly used to fix multiple batteries that match,
The common use of the basic members can be achieved, and the cost and the number of assembly steps can be further reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of a battery fixing structure for an electric vehicle according to an embodiment of the present invention.

FIG. 2 is a partially enlarged front view of FIG. 1;

FIG. 3 is a perspective view showing a basic member of the pressing members used in the electric vehicle battery fixing structure according to the embodiment of the present invention.

FIG. 4 is a perspective view showing a combination member of the pressing members used in the electric vehicle battery fixing structure according to the embodiment of the present invention.

FIG. 5 is a perspective view showing a dual-purpose stopper used in the electric vehicle battery fixing structure according to the embodiment of the present invention.

FIG. 6 is a side view showing a pre-assembly relay member used in the electric vehicle battery fixing structure according to the embodiment of the present invention.

FIG. 7 is a perspective view illustrating an example of an electric vehicle.

FIG. 8 is a perspective view showing an example of a body frame of the electric vehicle.

FIG. 9 is a plan view showing a conventional battery fixing structure for an electric vehicle.

FIG. 10 is a sectional view taken along the line AA of FIG. 9;

FIG. 11 is a perspective view showing a lateral stopper used in a conventional battery fixing structure for an electric vehicle.

FIG. 12 is a perspective view showing a vertical stopper used in a conventional battery fixing structure for an electric vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Battery 13 Holding member 14 Basic member 15 Combination member 16 Battery tray 18 Dual-purpose stopper 19 Stopper 20 Stud bolt (relay member) 22 Battery group 24 Long upper surface 27 Long side surface 28 Short side surface 30 Upper regulating plate portion 31 Side regulating plate portion 32 Projection

Claims (3)

[Claims] 1. A battery fixing structure for an electric vehicle for arranging and fixing a plurality of batteries on a battery tray, wherein the pressing member presses an upper edge of the battery, and the pressing member extends along a direction intersecting the pressing member. A stopper fixed to the battery tray and a relay member for coupling the pressing member to the stopper are provided, and the pressing member has an upper regulating plate portion and a side regulating plate portion facing the upper surface and the side surface of the battery, respectively. A battery fixing structure for an electric vehicle, wherein the side regulating plate portion is disposed between side surfaces of adjacent batteries. 2. The electric vehicle battery fixing structure according to claim 1, wherein a plurality of batteries arranged in a longitudinal direction can be pressed by a common pressing member. Fixed structure. 3. The battery fixing structure for an electric vehicle according to claim 1, wherein the pressing member includes a basic member including the upper regulating plate portion and the side regulating plate portion.
A battery fixing structure for an electric vehicle, comprising: a combination member in which the basic members of the book are combined back to back and fixed to each other, and the combination member is commonly used for fixing a plurality of adjacent batteries. .