JPH11312512A - Sealed lead-acid battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealed type lead-acid battery with 24 V of specification voltage. SOLUTION: A battery jar is partitioned into twelve chambers comprising four rows × three columns by partition walls, and group of electrode is inserted into the respection chambers. In the group of electrode, a negative pole 6 is prewelded to negative electrodes 5 in the group of electrode located in the first row of the first column, and a positive pole 7 is welded beforehand to positive electrodes 4 in the group of electrode located in the 4th row of the first column. Holes are drilled in advance in welded parts 8 of the partitioning walls 11 of the battery jar, and the respective groups are welded by a resistance- welding method via the holes to connect the twelve groups in series.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed lead-acid battery.

[0002]

2. Description of the Related Art Conventionally, the specification of a sealed lead-acid battery has been as shown in FIG. That is, since the nominal voltage of a lead storage battery is 2 V, a 2 V battery (a) using a single battery, a 6 V battery (b) in which two single batteries are connected in series, and a 6 Batteries (c, d) of 12V specification connected in series have been generally used.

However, the operating voltage of equipment such as an uninterruptible power supply using a sealed lead-acid battery is often 48V. That is, when the above-mentioned sealed lead-acid battery is used for a device of 48V specification, a battery of 2V specification requires 24 hours.
Pcs, 8 for 6V battery, 4 for 12V battery
Need to be connected in series. In order to connect a plurality of these batteries in series, it is necessary to connect the negative electrode terminal 6 and the positive electrode terminal 7 of the completed battery with a lead wire or the like. Since a large number of batteries are connected in series and used as described above, 1) it is troublesome to attach lead wires, and 2) a large number of negative electrode terminals 6 and positive electrode terminals 7.
There is a danger of short-circuiting due to exposed 3)
Since a battery case is required for each battery, there is a lot of wasted space, the installation area is large, and 4) the cost is high.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to provide a 24 V
An object of the present invention is to provide a low-cost sealed lead-acid battery that can be easily attached to a lead wire, has a low risk of a short circuit, can have a small installation area, and can be manufactured at low cost by developing a battery having specifications.

[0005]

In order to solve the above-mentioned problems, the present invention relates to a sealed lead-acid battery of 24V specification, wherein a battery case is divided into 12 rooms of 4 rows × 3 columns by partition walls, An electrode group is inserted into each chamber, and one electrode of the electrode group in the first row and first column and one electrode of the electrode group in the fourth row and first column are connected to either the positive terminal or the negative terminal. Are connected in series, one electrode of the electrode group in each row is connected in series with the other electrode of the electrode group in each adjacent column, and one electrode of the electrode group in the first row and third column is The electrode of one electrode group of the second row and the first column is connected to the other electrode of the electrode group of the third row and the first column. Connected in series, the third
The electrode of one electrode group in the third row and the third column is connected in series with the other electrode of the electrode group in the fourth row and the third column.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 is a schematic diagram of a sealed lead-acid battery of 24V specification which is an embodiment of the present invention, and FIG. 1 is a model diagram of the inside of the battery. As shown in FIG. 2, this embodiment has a structure in which a negative electrode terminal 9 and a positive electrode terminal 10 are attached to an upper lid 2. The battery case 1 is made of a synthetic resin and is divided into a total of 12 chambers as shown in FIG. 1, and a hole is previously formed in the partition 11 of the battery case. That is, the structure is such that twelve unit cells are connected in series inside the battery via the holes. The method of connecting the cells is described below.

[0007] A group of electrodes for producing the positive electrode 4 and the negative electrode 5 via a separator is inserted into each chamber of the battery case 1. As shown in FIG. 1, these electrode groups have a negative electrode pole 6 on the negative electrode 5 of the electrode group in the first row and the first column, and a positive electrode on the positive electrode 4 of the electrode group in the fourth row and the first column. The pole pole 7 is welded in advance. And FIG.
As shown in the figure, the current collector of the positive electrode 4 or the negative electrode 5 and the strap 3 are made of a lead alloy. These are welded by a resistance welding method in a state where pressure is applied through the perforated portion of the partition wall 11 of the battery case to bring the straps 3 into contact with each other to form a welded portion 8.

The positive electrode 4 of the electrode group in the first row and the first column, the negative electrode 5 of the electrode group in the first row and the second column, and the positive electrode 4 of the electrode group in the first row and the second column
And the electrode group negative electrode 5 in the first row and the third column are sequentially welded through the partition wall by resistance welding. By the same means, as shown in FIG. 1, the second row, the third row, and the fourth row are also welded through the partition walls by resistance welding. Next, the positive electrode 4 of the electrode group in the first row and the third column, the negative electrode 5 of the electrode group in the second row and the third column, the positive electrode 4 of the electrode group in the second row and the first column, and the third row Negative electrode 5 of electrode group in row, third
The positive electrode 4 of the electrode group in the third row and the third column and the negative electrode 5 of the electrode group in the fourth row and the third column are also welded by resistance welding through the partition walls 11 between the battery cases. After the twelve electrode groups are connected in series by the above-mentioned means, the upper lid 2 is heat-welded, and the positive electrode pole 7 and the positive electrode terminal 10 and the negative electrode pole 6 and the negative electrode terminal 9 are welded to each other.
The sealed lead-acid battery of 4V specification is completed.

[0009]

As described above, in the sealed lead-acid battery according to the present invention, the battery case 1 is divided into 12 parts by the partition walls, the electrode plates are inserted into each, and each electrode is inserted through the hole of the partition wall 11 of the battery case. By connecting the series of plates by welding,
This is to produce a sealed lead-acid battery with specifications. When the present invention is used, 1) work such as mounting is facilitated as compared with a conventional sealed lead-acid battery, and 2) the number of terminals exposed to the outside is small, so that there is little danger of short-circuiting.
3) Since the number of battery containers can be reduced to one, there is such a feature that wasted space can be reduced. Further, the negative terminal 6 and the positive terminal 7
Since there is no need to connect these in series with external lead wires or the like, it is excellent in that cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a model diagram of a main part of a sealed storage battery of 24V specification according to the present invention.

FIG. 2 is a schematic view of a sealed lead-acid battery of 24V specification of the present invention.

FIG. 3 is a model diagram of a main part of a conventional sealed lead-acid battery.

[Explanation of symbols]

1: battery case, 2: top cover, 3: strap, 4: positive electrode, 5:
Negative electrode, 6: negative electrode pole, 7: positive electrode pole, 8: weld, 9:
Negative electrode terminal, 10: positive electrode terminal, 11: partition of battery case.

Claims (1)

[Claims] 1. A sealed lead-acid battery of 24V specification, wherein a battery case is divided into 12 chambers of 4 rows × 3 columns by partition walls, and an electrode plate group is inserted in each chamber, and One electrode of the electrode group in the column and one electrode of the electrode group in the fourth row and the first column are connected to either the positive terminal or the negative terminal, and one electrode of the electrode group in each row is adjacent. One of the electrode groups in the first row and the third column is connected in series with the other electrode of the electrode group in the second row and the third column. The electrode of one electrode plate group in the second row and the first column is
The electrode of one electrode group in the third row and the third column is connected in series with the other electrode of the electrode group in the fourth row and the third column. A sealed lead-acid battery characterized in that: