JPH08115712A - Battery holding structure - Google Patents

Abstract

PURPOSE: To provide battery holding structure capable of firmly positioning and fixing a battery even if the difference in level exists in the battery itself which is housed in a battery box. CONSTITUTION: A central holding bar 50 is threadably attached to locking pins 25a-25f which are protruded upward from a center frame 16 against a battery line arranged within a battery box. A left holding bar is engaged to a left straight frame of an inner frame 14, a right holding bar is engaged to a right straight frame, then they are fastened with nuts. The battery line is elastically, firmly fixed by elastic members 58a, 58b, (66a, 66b).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery holding structure, and more particularly to a battery holding structure suitable for fixing and holding individual batteries in a battery box provided in an electric vehicle. .

[0002]

2. Description of the Related Art An electric vehicle represented by an electric vehicle is generally driven by a storage battery (battery). Therefore, a battery box is attached to the vehicle body, and a large number of batteries are stored in this battery box. Since a battery, for example, a lead acid battery, has a considerable weight, a battery box generally used in an electric vehicle needs to be constructed to be sturdy.

As shown in FIG. 18, in a battery box 1 according to the prior art, a total of 10 batteries 2 are arranged in parallel, 5 in each, and the batteries 2 in each row are arranged.
The straight bars 3a and 3b whose both ends are bent are arranged with respect to each other, a plurality of studs 4a and 4b are inserted into the straight bars 3a and 3b, and the bottom of the battery box 1 is tightened with nuts to tighten each row. The battery 2 is positioned and held. That is, the tightening force on the studs 4a, 4b is applied to the batteries 2 to prevent the displacement of the individual batteries 2 in each row.

According to another conventional technique, as shown in FIG. 19, a row of batteries 5 is covered with an inner cover 6, and the inner cover 6 is covered with a battery box lid 7. The battery box lid 7 and the battery box 8 are tightened using bolts and nuts. Inside the inner cover 6, there is provided a projecting piece 9 that enters a gap between adjacent batteries, and the projecting piece 9 is configured to prevent the batteries 5 from moving in the column direction.

[0005]

However, in the battery 2 composed of the conventional lead-acid battery as described above, it is several mm.
It was confirmed that there was variation in the height direction within the range. Therefore, even if the battery 2 is positioned and fixed by the straight bars 3a and 3b shown in FIG. 18, the straight bars 3a and 3b which are not high enough to directly contact the battery have no tightening force on the battery. ,
Eventually, there is a problem that the battery without height moves and abuts the adjacent battery in shock while the electric vehicle is running.

Moreover, as shown in FIG. 19, even though the inner cover 6 and the projecting piece 9 are provided on the inner cover 6, since the lid 7 and the battery box 8 are directly tightened, they are individually tightened. It has been pointed out that it is difficult to position the battery of the above, and there is a slight gap between the batteries in the row, so that the battery moves during traveling, and as a result, the battery itself is damaged. There is.

The present invention has been made to overcome the above-mentioned inconvenience, and even if there is a difference in height among a plurality of batteries, the individual batteries are sufficiently fixed with a pressing force, As a result, it is an object of the present invention to provide a battery holding structure capable of securely holding the battery in the battery box and preventing the battery itself from moving.

Another object of the present invention is to provide a battery holding structure which has an extremely simple structure and can be manufactured at low cost.

[0009]

In order to achieve the above object, the present invention provides a battery box for accommodating at least two rows of a plurality of batteries, wherein the battery box is provided upright between the rows of the plurality of batteries. A center frame and holding means for pressing the respective batteries are provided, and the holding means comprises a center holding means, a first end holding means and a second end holding means, and the center holding means is provided. The means engages with the locking pin planted in the center frame to hold the center side end of each battery forming both battery rows, and the first end holding means forms one battery row. The outer end of each battery is held, and the second end holding means holds the outer end of each battery constituting the other battery row.

Here, the battery box has first and second end side frames, and each end side frame is provided with a first locking pin row and a second locking pin row. First
The first end holding means is engaged with the first locking pin row of the end side frame to hold the battery outer end of each battery row, and the second end frame of the second end side frame is held. It is preferable to engage the stop pin row with the second end holding means to hold the outer end of each battery of the other battery row.

A plurality of locking pins are provided upright on the center frame, and the central holding means is composed of a holding bar defining a plurality of holes for engaging the plurality of locking pins. Has an elastic body that is pressed against the central end of each of the batteries that form the two battery rows.

Further, the elastic body of the holding bar is composed of a leg portion made of rubber or metal having a predetermined thickness provided on the holding bar, and the leg portion is formed with a plurality of slits along the longitudinal direction. ing.

Moreover, a plurality of locking pins are provided upright on the center frame, and the center holding means has a set of swingable rockable plates that are respectively engaged with the plurality of locking pins. The respective swing plates may hold the end portions on the center side of the respective batteries forming the two battery rows.

Further, the central holding means has a central holding body,
The oscillating plate may be rotatably held by the hinge mechanism with respect to the central holding body, and the central holding body has a tongue engaging with a battery held at the end thereof. Is preferably used as a detent when tightening the central holding body.

[0015]

Operation: Two rows of battery rows, each of which is composed of a plurality of batteries, are housed on both sides of the center frame which constitutes the battery box. A central holding means is engaged with the locking pin of the center frame, and the central holding means presses and holds the central side end portion of each battery constituting the battery row, and the first end holding means and the second end portion. The holding means firmly holds both outer ends of each battery.

[0016]

The preferred embodiments of the battery holding structure according to the present invention will now be described in detail with reference to the accompanying drawings.

A battery box in which the battery holding structure of the present invention is incorporated will be schematically described with reference to FIG. In the figure, the battery box 10 is a box outer plate 12
The inner frame 14 and the center frame 16 are basically included. The box outer plate 12 includes a bottom plate 18,
The front wall 20a, the rear wall 20b, the left wall 20c, and the right wall 20d are basically configured. The inner frame 14 is
Front straight frame 22a, rear straight frame 2
2b, left straight frame 22c, right straight frame 22d, and respective straight frames 22a to
Corner frame 2 that connects adjacent corners of 22d
4a to 24d. In this case, the locking pins 25a to 25 are equally spaced over the corner frame 24a, the left straight frame 22c, and the corner frame 24b.
f, the locking pins 27a to 27f are provided upright at equal intervals over the corner frame 24d, the right straight frame 22d, and the corner frame 24c.

The center frame 16 is formed by connecting two half frames 26a and 26b. The straight frames 22a to 22d and the corner frames 24a to 24d are, for example, assembled with each other and then fixed by spot welding or the like to be formed in a rectangular shape. In FIG. 1, reference numerals 28a and 28b denote support frames for fixing the battery box 10 to the body frame of the electric vehicle.

The center frame 16 will be described in detail with reference to FIGS. 2 and 3.

In FIG. 2, the half frame 26a constituting the center frame 16 has a plurality of triangular hole portions 32a punched out on one side of the central bent portion 30a and a rectangular shape on the other side. A plurality of holes 32b are punched out. In the half frame 26b, a plurality of relatively large rectangular hole portions 32c are formed by punching on one side, and triangular hole portions 32d are formed by punching on the other side on the lower side around the bent portion 30b. There is. As can be easily understood from Fig. 2, the half frame 2
6b is a shape obtained by rotating the half frame 26a by 180 °, and both have a point-symmetrical relationship. This is because there is an advantage that it can be created with one mold. Therefore, if the half frames 26a and 26b are folded in two around the bent portions 30a and 30b, and then the joints are integrally joined by welding, the center frame 16 is integrally formed. It will be. In this case, as shown in FIG.
The center frame 16 has an inverted U-shaped cross section, and the height of the center frame 16 is selected to be substantially the same as the height of the battery.

At the end of the half frame 26a, a pair of flanges 34a, 34b extending in different directions from each other.
And a flange 36 bulging downward in FIG. 3 is also provided at the bottom of the half frame 26a. The flanges 34a and 34b are connected to the front straight frame 22a of the inner frame 14 shown in FIG. 1 by welding or the like, and the flange 36 is the box outer plate 12 described above.
It is fixed to the bottom portion 18 by welding or the like (see FIG. 3).
It goes without saying that the half frame 26b is also provided with flanges corresponding to the flanges 34a and 34b, and a flange corresponding to the flange 36.

Next, in the present embodiment, the inverted U-shaped top portion of the center frame 16, that is, the bent portions 30a, 30.
Locking pins 38a to 38f are provided on b at predetermined intervals. Preferably, the locking pins 38a to 38f are fixed to the center frame 16 by spot welding or the like.

FIG. 4 is a vertical sectional view showing a state in which the center frame 16 constructed as described above is fixed to the inner frame 14 arranged in the box outer plate 12,
FIG. 5 is a vertical cross-sectional view of the battery box 10 shown in FIG.

Here, lower heat insulating materials 40, 40 are laid on the upper surface of the bottom plate 18 of the box outer plate 12, and the inner frame 14
The side heat insulating materials 42, 42 are attached to the inside of the. In FIG. 5, the left side heat insulating material 42 defines an exhaust passage 44 between itself and the inner frame 14. The inner frame cut-and-raised portion indicated by reference numeral 46 is a processed portion for attaching the side heat insulating material 42 at its end portion.

A central heat insulating material 48 is also attached to the center frame 16. At the time of filling the central heat insulating material, the center frame 16 is provided with the plurality of holes 32 a to 3 already described.
2d is provided, the holes 32a to 32d are provided.
The central heat insulating material 48 may be pushed in by utilizing the above, and the central heat insulating material 48 may be pressed against the triangular hole portions 32a and 32d and the rectangular hole portions 32b and 32c. As a result, the lower part and side parts of the box outer plate 12 are thermally insulated, and the inner frame 14 is thermally insulated at its central part. As shown in FIG. 5, a slit 49 having a width of several mm is provided between the bottom plate 18 of the box outer plate 12 and the lower heat insulating material 40 between the batteries to be described later. These slits 49 are utilized as passages for passing cooling air to the battery.

Next, a detailed description will be given of the battery holding structure according to the present invention for fixedly positioning a plurality of batteries housed in the battery box 10 having the above-mentioned structure and having a slight difference in the height direction. .

6 and 7 show a straight bar type battery holding structure. A metal having a length substantially the same as the length of the center frame 16 and having rich elastic force defining holes 54a to 54f corresponding to the locking pins 38a to 38f provided on the center frame 16. The holding bar 50 in the center of the
2 is formed so as to bulge upward in the figure, and the central portion 5
2, the leg portions 56a, 56b extend in opposite directions, and the leg portions 56a, 56b are provided with elastic members 58a, 58b made of synthetic rubber, for example, with an adhesive or the like having a thickness of about 8 mm. It is installed by. The central holding bar 50 is provided with triangular bulges 60a and concaves 60b for increasing rigidity from the central portion 52 to the legs 56a and 56b.
A plurality of them are formed at equal intervals along the axis of.

8 and 9 show the left holding bar 62 which engages with the locking pins 25a to 25f which are planted on the left straight frame 22b constituting the inner frame 14. As shown in FIG.
As is clear from FIG. 8, the left holding bar 62 is made of a metal plate body in which the battery holding portion 64 and the locking portion 68 are formed by being bent, and the lower surface and the side surface of the battery holding portion 64 are made of synthetic rubber. Elastic member 66
a and 66b are arranged at a right angle. Locking holes 70a to 70f into which the locking pins 25a to 25f fit are inserted in the locking portions 68 that are bent from the battery pressing portion 64 and extend downward.
70f is provided. In addition, in order to increase the strength of the left holding bar 62, like the center holding bar 50, a triangular bulging portion 72 is bulged along the longitudinal direction of the left holding bar 62. Locking pin 2 planted in the right straight frame 22d constituting the inner frame 14.
Since the right holding bar 80 engaged with 7a to 27f is configured to be substantially symmetrical with the left holding bar 62,
Detailed description thereof will be omitted.

Using the central holding bar 50, the left holding bar 62, and the right holding bar 80 as described above, the battery box 10
The action of fixing the battery to the will be described.

FIG. 10 is an overall assembly sectional view of the battery box 10 according to the present embodiment, in which an air duct 81 is attached to the lower surface of the bottom plate 18 of the box outer plate 12, and the left wall 20c.
The cross flow fan 82 is attached to the right wall 20d, and the exhaust port 88 including the exhaust blade 84 and the hood 86 is attached to the right wall 20d. In the inner frame 14 divided into two by the center frame 16, the battery rows 9 are spread over the left and right two rows.
0a, 90b are stored, and these battery rows 90a,
A band-shaped heat insulating material 92 that also serves as a packing is attached to the upper clearance of 90b. The lid 9 is attached to the upper part of the strip-shaped heat insulating material 92.
4 is covered. Inside the lid 94, the upper heat insulating material 9
6 is provided.

By the way, in this embodiment having the above-mentioned structure, first, the locking pin 38a of the center frame 16 is provided.
To 38f are fitted with the holes 54a to 54f of the central holding bar 50, and nuts 98 are respectively screwed into the distal ends of the locking pins 38a to 38f exposed upward from the central holding bar 50 to tighten them. . On the other hand, the left straight frame 22c
The locking holes 70a to 70f of the left holding bar 62 are fitted into the locking pins 25a to 25f of the locking pin 25a to
The nut 100 is screwed into the tip of 5f and tightened. Similarly, the right holding bar 80 is screwed into the locking pins 27a to 27f, and the nut is screwed into the tip portion thereof.

As described above, when the nut 98 is tightened with respect to the central holding bar 50, the battery rows 90a and 90b are connected.
The inner ends of each of these are elastically fastened by elastic members 58a and 58b fixed to the legs 56a and 56b. On the other hand, when the nut 100 is tightened, the battery row 9
0a of the individual battery outer corners are elastic members 66a,
It will be clamped by 66b, and horizontal movement will be blocked by the elastic member 66b.
Similarly, by tightening the right holding bar 80 to the battery row 90b as well, a tightened state similar to that of the battery row 90a can be obtained.

Thus, even if the battery array 90a,
Even if there is a difference in the height direction among the individual batteries that form 90b, the leg portions 56a, 5 of the central holding bar 50,
The elastic members 58a and 58b fixed to 6b and the elastic members 66a of the left holding bar 62 and the right holding bar 80 achieve the pressing in the height direction and prevent the displacement in the horizontal direction by this pressing action. it can.
The battery box 10 assembled in this way is
The support frames 28a and 28b fix the vehicle body frames 110a and 110b using a plurality of bolts 112.

As described above, the battery box 10 becomes very heavy when a plurality of lead storage batteries are stored. Therefore, it is necessary to firmly hold the battery box 10 on the vehicle body frames 110a and 110b. In this case, in order to prevent the bolt 112 from falling off, the bolt drop prevention stay 1 is attached to the battery box 10.
20a and 120b are provided on the diagonal line of the battery box 10 (see FIG. 11). As described above, the drop prevention stays 120a and 120b are attached to the battery box 1
Since the battery box 10 is arranged on the diagonal line of 0, even if the battery box 10 is about to drop off, the rotational force generated by the dropout stay 120 is arranged on the diagonal line.
Canceled by a and 120b. For this reason, the strength of the fall prevention stays 120a and 120b itself can be set to be smaller than that of the conventional one, and therefore the stay 12 is not so much.
0a and 120b can be strongly retained without making them large.

Therefore, in FIG. 10, when it is necessary to cool the individual batteries forming the battery rows 90a and 90b during traveling, the cross flow fan 82 is started. The cross flow fan 82 pressurizes the sucked air and sends it to the air duct 81 as indicated by an arrow. The air that has passed through the air duct 81 passes through the bottom plate 18 of the box outer plate 12 and passes through the slit 49 to blow the air to the battery, as shown by the arrow. After cooling the front and rear sides and both side surfaces of the battery rows 90a and 90b, this air becomes a substantially horizontal flow, flows to the left side in FIG. 10, reaches the exhaust passage 44, and then through the exhaust vanes 84. It is discharged from the hood 86 to the outside. In this case, as described above, the battery rows 90a and 90b are not connected to the central holding bar 5.
0, the left holding bar 62, and the right holding bar 80 are fixed to the elastic members 58a, 58b, 66a, and 66b, respectively, so that the central portion in the longitudinal direction and the left and right ends are firmly held. In addition, even if the electric vehicle has fine or large vibrations, its position is firmly held, and in particular, the elastic members 58a, 58b, 58b,
There is an effect that it is absorbed by 66a and 66b and is avoided from the inconvenience such as displacement of some batteries. In addition, the center holding bar 5 can be easily understood from the figure.
Since the 0, the left holding bar 62, and the right holding bar 80 can be easily formed by press working, the manufacturing unit price of the battery box 10 itself does not rise so much.

FIG. 12 shows a second embodiment of the battery holding structure according to the present invention. In the second embodiment, the elastic members 58a, 58b, 66a, 66 of the first embodiment described above are used.
Instead of b, the central holding bar, the left holding bar, and the right holding bar themselves are provided with elastic functions. That is, FIGS. 12 and 13 show the center retention bar 200, with the legs 20 extending in opposite directions from the center section 202.
4a and 204b are extended. The legs 204a, 20
4b has its ends formed as curved portions 205a and 205b. As can be easily understood from FIG. 12, the leg portion 204a is provided with a plurality of slits 206a at substantially equal intervals, while the leg portion 204b is also provided with slits 206b. Locking holes 208a to 38f into which the locking pins 38a to 38f protruding from the center frame 16 are inserted into the central portion 202 at a predetermined distance.
208f (only 208c and 208f are shown in the figure) is provided.

14 and 15 show the inner frame 14
Locking pin 2 protruding from the left straight frame 22c
5a shows a left retaining bar 210 engaging 5a-25f. FIG.
As can be easily understood from FIG. 4, the left holding bar 210 once extends substantially vertically upward from the horizontally extending locking portion 212, and then extends horizontally. Have. The pressing portion 214 has a leg portion 21.
6 is provided so as to extend slightly obliquely downward, and a curved portion 218 is formed at the tip thereof. The holding portion 214 has a locking pin 25 protruding upward from the left straight frame 22c of the inner frame 14.
Locking holes 220a to 220f that engage with a to 25f are provided at a predetermined interval, while the leg 216 has a plurality of slits 222 at the same intervals as the slits 206a and 206b of the central holding bar 200. It is provided. Since the right holding bar 223 is formed symmetrically with the left holding bar 210, detailed description thereof will be omitted.

In the above structure, the center holding bar 200 is attached to the locking pins 38a to 38f of the center frame 16.
Engage the locking holes 208a-208f of the nut 9
Tighten it with 8. Similarly, the locking holes 220a to 220f of the left holding bar 210 are fitted to the locking pins 25a to 25f protruding from the left straight frame 22c, and the nuts 100 are tightened. Right holding bar 22
For 3 as well, the tightening operation is similarly performed. As a result, the leg portions 204a and 204b separated by the slits 206a and 206b by a predetermined distance firmly hold the central ends of the battery rows 90a and 90b adjacent to each other by their elastic force, while the leg portions 204a and 204b respectively hold the battery rows 90a and 90b. The side portions separated from each other are the leg portions 216 of the left holding bar 210,
The right holding bar 223 is elastically held by the legs. Compared to the first embodiment, the second embodiment does not use the elastic members 58a, 58b, 66a, 66b, so that the manufacturing cost can be further reduced.

16 and 17 show the third embodiment. In this embodiment, a hinge mechanism is used to hold the central portion of each battery forming the battery rows 90a and 90b. Therefore, in particular, even if the heights of the batteries in the battery rows 90a and 90b are different, it is possible to sufficiently absorb the difference in the heights and hold the individual batteries.

FIG. 16 shows a holding structure 300 having the hinge mechanism. The holding structure 300 includes a central holding body 302.
And a first oscillating body 304 and a second oscillating body 306 which are locked to the central holding body 302 by a hinge structure. The central holder 302 has a horizontal portion 30.
8, the first vertical portion 310, and the first vertical portion 31
A second vertical portion 312, which is slightly longer than zero and is formed in parallel with the first vertical portion 310 and integrally with the horizontal portion 308. The horizontal portion 308 is formed with a first bending portion 314a and a second bending portion 314b that bend downward along the longitudinal direction of the horizontal portion 308.
A locking hole 316 for inserting any one of the locking pins 38a to 38f of the center frame 16 in a horizontal portion is formed between the 4a and the second curved portion 314b. A first tongue piece 318a and a second tongue piece 318b extend vertically downward at both ends of the second vertical portion 312. As shown in FIG. 17, the first oscillating body 304
Has a horizontal portion 320, and is provided with inclined portions 322a and 322b that descend from the horizontal portion 320 in mutually opposite directions. Horizontal part 320 and the inclined part 3
22a and 322b are provided with rising portions 324a and 324b extending vertically upward integrally with the rising portions 324a and 324b, and tongue pieces 326a and 326b facing each other in the horizontal direction are provided. ing. The tongue pieces 326a and 326b are fitted to the curved bottom portion of the first curved portion 314a provided on the central holding body 302. The second oscillating body 306 is also formed in the same manner as the first oscillating body 304, and a detailed description thereof will be omitted. Therefore, the first oscillating body 304 and the second oscillating body 306 are engaged with the first bending portion 314a and the second bending portion 314b of the tongue pieces 326a and 326b to center the bottom of the bending portion. It will be readily appreciated that it is rockable, as indicated by the arrow at 17.

In the above structure, first, the locking holes 316 of the holding structure 300 are inserted into the locking pins 38a to 38f of the center frame 16 with respect to the battery rows 90a and 90b provided in parallel. And nut 98
If the first rocking body 304 is screwed to any one of the locking pins 38a to 38f, the first rocking body 304 is mutually connected to the center frame 1.
6 will be bridged to the end of the battery installed side by side, and since the first swinging body 304 is swingable around the first bending portion 314a, the battery row 90a , 90b, there is a difference in the height direction between the individual batteries, but it can be sufficiently absorbed and the batteries can be positioned and fixed firmly. At this time, the left end portion and the right end portion of the battery rows 90a and 90b may be fixed by selectively selecting the left holding bar and the right holding bar of the first and second embodiments described above, respectively. . Then, the screwing action of the nut 98 tends to rotate the holding structure 300.
Since 18b comes into contact with the side wall of the adjacent battery, a detent action is performed.

As described above, the use of the holding structure 300 utilizing the hinge mechanism has an advantage that batteries having more steps can be fixed to each other and sufficiently more than the holding bars shown in the first and second embodiments. is there.

[0043]

As described above, according to the present invention, even if there is a step in the height direction between the batteries constituting the battery row housed in the battery box, it is possible to sufficiently prevent it. Can be positioned and held at. Therefore, for example, when this battery box is mounted on an electric vehicle, the individual batteries or battery rows do not move during traveling, and there is an advantage that it is possible to avoid the inconvenience that the batteries themselves are damaged by mutual contact of the batteries. is there.

Moreover, as shown in each of the embodiments, since this holding structure has an extremely simple structure, there is no concern that the manufacturing cost will be increased so much.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a battery box to which a battery holding structure according to the present invention is applied.

FIG. 2 is a development view of a center frame incorporated in FIG.

3 is a perspective view with a part of the center frame shown in FIG. 2 omitted.

FIG. 4 is a vertical cross-sectional explanatory view of the battery box shown in FIG.

5 is a vertical cross-sectional explanatory view showing a state where a heat insulating material is inserted in the battery box shown in FIG.

FIG. 6 is a partially omitted perspective explanatory view of a central holding bar of the first embodiment constituting the battery holding structure.

FIG. 7 is a plan view of the center holding bar shown in FIG.

FIG. 8 is a perspective view with a part of the left holding bar omitted according to the first embodiment of the present invention.

9 is a partially omitted plan view of the left holding bar shown in FIG. 8. FIG.

FIG. 10 is a vertical cross-sectional view of the battery box in which the battery holding structure of the present embodiment is mounted.

FIG. 11 is an explanatory plan view of an arrangement state of a battery drop-out prevention stay incorporated in the present embodiment.

FIG. 12 is a partially omitted perspective explanatory view of a second embodiment of the battery holding structure of the present invention.

13 is a plan view of the center holding bar shown in FIG.

FIG. 14 is a perspective view with a part of the left holding bar of the second embodiment omitted.

FIG. 15 is a plan view of the left holding bar shown in FIG.

FIG. 16 is a perspective explanatory view of a battery holding structure according to a third embodiment of the present invention.

17 is an exploded perspective view of the battery holding structure shown in FIG.

FIG. 18 is a perspective view illustrating a battery holding structure according to a conventional technique.

FIG. 19 is a perspective explanatory view of a battery holding structure according to another conventional technique.

[Explanation of symbols]

10 ... Battery box 12 ... Box outer plate 14 ... Inner frame 16 ... Center frame 50 ... Center holding bar 56a, 56b, 204a, 204b ... Leg part 58a, 58b, 66a, 66b ... Elastic member 62, 210 ... Left holding bar 90a , 90b
... Battery row 110a, 110b ... Body frame 200 ... Central holding bar 300 ... Holding structure 302 ... Central holding body 304, 306 ... Oscillating body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masami Fukagawa 1-4-1 Chuo, Wako-shi, Saitama Stock Research Institute Honda Technical Research Institute

Claims (8)

[Claims] 1. A battery box for accommodating at least two rows of a plurality of batteries, the battery box having a center frame erected between the rows of the plurality of batteries and a holding means for pressing the respective batteries. The holding means comprises a central holding means, a first end holding means and a second end holding means, and the central holding means engages with a locking pin implanted in the center frame. Hold the central end of each battery forming both battery rows, the first end holding means holds the outer end of each battery forming one battery row, and the second end holding means. Holds the outer end of each battery that constitutes the other battery row. 2. The structure according to claim 1, wherein the battery box has first and second end side frames, and each end side frame has a first locking pin row and a second engaging pin row. A stop pin row, and a first end holding means is engaged with the first locking pin row of the first end side frame to hold each battery outer end of one battery row, A battery holding structure, characterized in that a second end holding means is engaged with a second locking pin row of the second end side frame to hold an outer end of each battery of the other battery row. 3. The structure according to claim 1, wherein a plurality of locking pins are provided upright on the center frame, and the center holding means defines a plurality of holes for engaging the plurality of locking pins. A battery holding structure comprising a holding bar, wherein the holding bar has an elastic body that is pressed against the central end of each of the batteries forming the two battery rows. 4. The battery holding structure according to claim 3, wherein the elastic body of the holding bar is a rubber material provided on the holding bar and having a predetermined thickness. 5. The structure according to claim 3, wherein the elastic body of the holding bar is made of metal legs, and the legs have a plurality of slits along the longitudinal direction. Battery holding structure. 6. The structure according to claim 1, wherein a plurality of locking pins are provided upright on the center frame, and the center holding means is attached to each of the plurality of locking pins. The battery holding structure, characterized in that it has the oscillating plate and holds the central side end of each battery constituting the two battery rows by the oscillating plate. 7. The structure according to claim 6, wherein the central holding means has a central holding body, and the swing plate is swingably held by the hinge mechanism with respect to the central holding body. And battery holding structure. 8. The structure according to claim 7, wherein the central holding body has a tongue for engaging a battery held at the end thereof.
The battery holding structure, wherein the tongue piece is used as a detent when tightening the central holding body.