JPH0992261A - Lead-acid battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a cut out part on the upper surface of a cover, and project a fastening terminal from the vertical surface of the cut out part to lower the height of a lead-acid battery. SOLUTION: A terminal post 27 is fixed to a cover 30 in the position shifted from a cut off part 33, and a cell chamber 24a is formed in the lower part of the terminal post and the cut off part 33. A rib or a spacer is arranged between an electrode group 25 inside the cell chamber 24a and the inner wall of a battery container short side surface 20.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to lead-acid batteries, and more particularly to
The present invention relates to a monoblock lead storage battery in which a notch is formed on the upper surface of a lid and a faston terminal is projected from a vertical surface of the notch.

[0002]

2. Description of the Related Art A lead-acid battery of this type is shown in FIGS. In the figure, 1 is a lead storage battery, 2 is a notch formed on the upper surface of the lid 3 from one short side surface 4 to both long side surfaces 5, and 6 is a flat plate terminal protruding horizontally from a vertical surface 7 of the notch 2. Faston terminal). This battery 1 is often mounted on a motorcycle in particular, but at this time, the one-touch coupler 8 connected to the vehicle side wire harness is mounted on the notch 2. Therefore, the size of the cutout 2 is set to the size of the coupler 8, and in the small battery 1, the cutout 2 extends over the two-cell chambers 10 and 10 'as shown in FIG. Since the rising position of the terminal pole 11 is below the cutout 2, it is necessary to raise the lid 12 by the height L of the cutout 2. In order to solve this, as shown in the schematic view of FIG.
3 a to 13 b are formed by a partition wall 14 a that divides the battery in the longitudinal direction into two and a partition wall 14 b that divides the direction orthogonal to the partition wall 14 a into three, and in each of the cell chambers 13 a to 13 f. The stored pole groups are connected in series to each other, and terminal poles (not shown) are provided in the cell chambers 13c and 13f opposite to the cell chambers 13a and 13d in which the notches 16 are formed. The present inventors have proposed a lead storage battery in which a pair of flat plate terminals 15 are drawn toward the notch 16. (See JP-A-6-163028)

[0003]

However, the inter-cell connecting portion 17 of FIG. 6 is formed by raising intermediate poles from the straps 18a and 18b and resistance welding these intermediate poles to each other. Since it is below the projection surface of the cutout 16, the battery had to be raised by the height dimension of the intermediate pole of the inter-cell connection portion 17.

The present invention has been made in view of the above problems, and it is an object of the present invention to make it unnecessary to elevate the battery by the height dimension of the inter-cell connecting portion (intermediate pole). That is, it is to provide a lead storage battery having a low height.

[0005]

In order to achieve the above object, the present invention has a notch 33 formed in the upper surface of a lid 30.
The cell chambers 24a to 24f have flat plate terminals 38a and 38b which horizontally project from the vertical surface 39 of the notch 33.
Partition walls 23, 34 provided in parallel with the short side surfaces 20, 31
In the lead storage battery divided by, the terminal pole 27 is attached to the lid 30 at a position separated from the notch 33, and one cell chamber 24a is provided below the terminal pole 27 and the notch 33. A rib 29 or a spacer is arranged between the pole group 25 in the cell chamber 24a and the inner wall of the battery case short side surface 20.

[0006]

Since the terminal pole 27 penetrates the lid 30 at the position away from the notch 33 and the inter-cell connection is made by the partition wall 23 at the position away from the notch 33, the notch 33 and the strap 26a, It is possible to almost eliminate the gap between 26b.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a cross-sectional view of an essential part showing an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a plan view of the battery of FIG. 2 with a lid removed. In the figure, 19 is a box-shaped battery case surrounded by a pair of short side surfaces 20, a pair of long side surfaces 21, and a bottom surface 22.
It is divided into 6 cell chambers 24a to 24f by 3, and the leftmost cell chamber 24a is wider than the other cell chambers 24b to 24f. Reference numeral 25 denotes an electrode group in which a positive electrode plate and a negative electrode plate are laminated with a separator interposed therebetween, which are housed in the cell chambers 24a to 24f, respectively. The pole group 25 has straps 26a and 26b for connecting pole plates of the same polarity to each other at the upper portion, and the pole group 25 is housed in the cell chambers 24a and 24f at both ends.
A terminal pole post 27 rises from one strap 26a, and an intermediate pole post 28 rises from the other strap 26b. Further, from both straps 26a and 26b of the pole group 25 housed in the intermediate cell chambers 24b to 24e,
The intermediate pole 28 is standing up in each case. Then, the intermediate polar columns 28 of different polarities in the adjacent cell chambers are separated from each other by the partition wall 2
3 are connected through through holes (not shown), and the respective pole groups 25 are connected in series.

Reference numeral 29 denotes a rib projecting from the inner wall of the short side surface 20 at the left end of the battery case 19, which presses the pole group 25 from the side surface,
It prevents the pole group 25 from wobbling and prevents the active material from falling off. Reference numeral 30 is a lid that closes the upper surface of the battery case 19, and has a notch 33 cut out from the left short side surface 31 to both long side surfaces 32 on the upper surface, and around the lower surface and the battery case 1
The partition wall 34 provided to face the partition wall 23 of 9 is welded to the upper edge of the battery case 19.

The lid 30 above the leftmost cell chamber 24a comprises a notch 33 and a portion where the notch 33 is not formed. The rib 2 is provided in the cell chamber 24a below the projection surface of the notch 33.
9, the pole group 25 is housed in the cell chamber 24a below the projection surface in the portion where the notch 33 is not formed. And
The terminal pole post 27 rising from the strap 26a of the pole group 25 is inserted into the through hole 35 formed in the lid 30 at the upper portion thereof, and the resin 37 is provided around the flange 36 formed in the middle portion.
Is attached. The upper end of the resin 37 and the lid 30 are welded and integrated.

Reference numerals 38a and 38b denote flat plate terminals. As shown in FIG. 2, one flat plate terminal 38a passes from the upper portion of the terminal pole 27 to the vertical surface 39 of the lid 30 having the notch 33 formed therein. Then, the other flat plate terminal 38b is projected from the vertical surface 39, passes through the inside of the lid from the upper end of the terminal pole 27 rising from the cell chamber 24f at the right end, and reaches the vertical surface 39.
It projects from the vertical surface 39. Although the rib 29 is arranged in the cell chamber 24a below the notch 33 in the present embodiment, a spacer may be used instead of the rib 29.

[0011]

As described above, according to the present invention, since the notch is not formed above the terminal pole and the cell-to-cell connecting portion, it is not necessary to make the battery high, and the lead storage battery having a low height is not required. Can be provided.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing the entire battery of FIG.

FIG. 3 is a plan view of the battery of FIG. 2 with a lid removed.

FIG. 4 is a perspective view showing a lead storage battery and a one-touch coupler according to the present invention.

FIG. 5 is a vertical cross-sectional view showing a conventional embodiment.

FIG. 6 is an explanatory diagram showing another conventional embodiment.

[Explanation of symbols]

 19 Battery Case 20 Short Sides of Battery Case 24a to 24f Cell Chamber 25 Electrode Group 27 Terminal Pole 29 Rib 30 Lid 31 Short Side of Lid 33 Notch 34 Lid Partition 38a, 38b Flat Terminal 39 Notch Vertical Face

Claims (1)

[Claims] 1. A notch is formed on an upper surface of a lid, and a flat plate terminal horizontally projecting from a vertical surface of the notch is provided, and a cell chamber is partitioned by a partition wall provided in parallel with a short side surface. In the lead storage battery, the terminal pole is attached to the lid at a position separated from the notch, and one cell chamber is provided below the terminal pole and the notch, and a pole group and a battery case in the cell chamber are provided. A lead storage battery characterized in that a rib or a spacer is arranged between the inner wall of the short side surface.