JPS63187553A - Sealed lead storage battery - Google Patents

Abstract

PURPOSE:To make the total thickness thin without decreasing the capacity of a unit cell by providing a fastening connection tool between a pair of upper and lower center sections and providing a coupling/fixing section between outer periphery sections of both cases. CONSTITUTION:Reinforcing ribs 15, 16 are formed along gaps of multiple unit cells 3 aligned and stored on plane sections of both cases 1, 2, and a fastening connection tool 17 is provided between them. Therefore, the plate thickness of the cases 1, 2 can be made thin as much as possible by the reinforcement effect of these reinforcing ribs 15, 16, and the fastening connection tool 17 can be fastened strongly. In addition, in both flanges 1A, 1B, a coupling/fixing section 18 of both cases 1, 2 is formed at the opposite edge section in the extension direction of the reinforcing ribs 15, 16, thereby the coupling can be strongly maintained without being loosened by the reinforcement effect of the reinforcing ribs 15, 16, and the fixing can be firmly made. Accordingly, the total thickness including the plate thickness of both cases can be made thin without decreasing the capacity of the unit cell.

Description

[Detailed Description of the Invention] In the field of industrial application, Moku Bomei uses a small seal 'FSi battery which applies a group L1- from the outside 815 to the polar membrane eT inside the single cell placed in the case. It is.

Conventional Technology In the field of small secondary batteries, small sealed lead-acid batteries have been developed to meet the demands of new applications as power sources for headphone sofreo players, compact F-disk players, color LCD televisions, etc. .

A conventional sealed lead acid battery will be explained below.

FIG. 9 is a vertical cross-sectional view of a conventional small seal 1:1 storage battery, in which a small cell 21 packed in a fine film-like battery case is sandwiched between an upper case 22 and a lower case 23, and When sandwiching the two cases 22 and 23, a cushion material 24 that provides cushioning properties is interposed between the cell 21 and the case 22. In order to fix the upper case 22 and the lower case 23, flanged edges 22^ and 23A are integrally connected outward from the outer periphery of these cases 22 and 23. I decided to spot weld or secure the edges between the edges 22A and 23^. In 7), the 21 cell batteries inside were fixed.
It was fixed by clamping it in place.

However, in this conventional +llt structure, the upper case 22 and the lower case 23 are connected via the edges 22A and 23B.
Since the edges were fixed, a space corresponding to the amount of protrusion of the edges 22^ and 23B was required around the entire circumference, and there was a limit to how small the edges could be made in plan. Furthermore, since the cell 21 packed in a thin film-like container is a soft bag, it does not have the strength to apply a group pressure to the electrode plates inside. Both cases 22 and 23CfF need to be held in contact with each other.
Since it was necessary to reduce 2η, both cases 22.
There was a limit to reducing the total thickness of the sealed lead-acid battery including 23 plates t7. In addition, both cases 22.23
When welding is used to fix the 111 through the edges 22^ and 23^, sparks during welding fly into the interior, and this heat tends to cause problems such as melting of the film of the 111 battery 21.

Kibu and Akira solved these conventional problems and developed a total of 1 sealed lead-intoxicated battery including plate I9 of both cases.
'7 A sealed lead-accented battery that has a thinner thickness, a planar external dimension that is as small as possible, and that does not cause trouble on the cell side at t7+1 in both cases? The purpose is to provide

To achieve this objective, the sealed lead-tin battery of the present invention provides a solution to the problem.
A joint is provided between the center portions of a pair of seven-door cases, and a fitting and fixing portion is provided between the outer peripheries and edges of both cases.

With this configuration, both the cases on the ground and the bottom can be fitted in q ways at lIx mating and fixing parts, and fixation between the outer peripheral edges can be made as (jλ,
Therefore, by tightening the connecting tool, the center parts can be fixed. Therefore, even if both cases are made of extremely thin wood, if external pressure is applied to the battery, it will be difficult for the central part of these cases to bulge due to deformation. The total thickness can be made thinner without reducing the capacity.Also, since the outer periphery of the fitting and fixing part is exposed in two grooves, both sides can be thinned.
The flange-like edge on the outer periphery of the base is 7+:<, and the outer diameter and r-measure are small.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 8.

Reference numeral 1 denotes an upper case having a rectangular shape in plan view, and a flange 1A is integrally provided at a right angle downward from the outer peripheral edge of the upper case. Reference numeral 2 denotes a lower case which is rectangular in plan view, and seven flange 2Δ are integrally arranged at right angles upward from the outer peripheral edge of the lower case. Both cases 1.2+4, flange 1
A, 2A! , the 1\j method is set so that it fits into i. In a tii:li pond backed by an upper tank, a plurality of them (three in the example) are arranged on a plane and housed in both cases 1°2. Cushion material 4 that has a+ property between it and the cell 3
is sandwiched between both cases 1 and 2 from below -V. This cushion shrine 4 is made of one piece, and has long holes 5 formed in two places in the center of the cushion for passing a guard bolt (= J-ke connector (to be described later)). Up to 6 tons. Two of them are installed in the center of the lower case 2 between the three cells 3, and the upper end is spot welded to the inner surface of the lower case 2. The upper end can freely come into contact with the inner surface of the upper case 1 through the elongated hole 5, and the tightening screw 8 passed through the through hole 7 formed in the upper case 1 (
The central part of the upper case 1 is fixed to the support 16 by screwing into the screw 80 formed on the support 6.

These supports 6 and tightening (Jcl screws 8, etc.) constitute an example of the connecting tool 17 for 1 hour.On the opposite side of the flange 1△ of the upper case 1, there is a claw on the opposite side of the 10J
jJ, and a stopper 11 are formed. 9 In other words, at multiple locations in the lateral direction on the tip (lower pant) side of the flange 1A, claws 10 whose ends are inward are formed by cutting inward, and these claws 10 are It has elasticity based on 44 qualities. and LR of the row of pawl 10, and pawl 10.
Arc-shaped stoppers 11 that protrude inward in plan view are formed at a plurality of locations between the two by pressing inward from the incisions. Flange 2 of the upper case 2
A hole 12 corresponding to the wind 10 and into which the pawl 10 can be freely engaged is formed in the flange 2A of one of the lamps A facing opposite to each other. These flanges IA.

2A), both cases), 2t due to claws 10 and holes 12, etc.
C constitutes an example of the fitting fixing part 18 provided between the outer peripheral edges. When the wind 10 engages with the hole 12, the tip (upper end surface) 2a of the flange 2A is connected to the stopper 1.
It is configured so as to come into contact with the lower surface of 1.

13 i; L If A lead wire for taking out electricity from the battery 3, it comes out from a notch 14 formed between the flanges IA and 2A of both cases 1.2. Two reinforcing ribs 15 and 16 are formed on the flat surfaces of both cases 1 and 2. fffi along the gap between the three I11 batteries 3 arranged on a plane.
-J, sea urchin, prominent in f11. Further, the fitting fixing portion 1 is attached to the opposite side in the extending direction of the reinforcing ribs 15 and 16.
8 is formed. The branch 6 is spot welded onto the reinforcing rib 16 formed on the lower case 2,
Further, the Ω through hole 7 is formed in a reinforcing rib 15 formed on the upper case 1.

The assembly work for the sealed lead-acid battery of this embodiment constructed as described above will be described below. First, the three batteries 3 are assembled by wiring between the various terminals and connecting two lead wires 13 from both #A terminals. , and the support +6 are placed in the lower case 2, and the lead wire 13 is led out from the notch 14 formed in the flange 2A. Then, a small piece of cushioning material 4 is placed on -L of the lJi battery 3. As shown by the solid line from the imaginary line in FIGS. 1 and 2, from the top of the lower case 2, move both sides 1A.

Fit 2A. At that time, the cushioning material 4 is elastically deformed at 1- of the cell 3, and the upper case 1 is strongly pressed so that the flange 1A of the upper case 1 is aligned with the solid line in Figure 1.
The claw 10 provided in the flange 2A of the case 2 is engaged with the C slotted hole 12. The maximum amount of fitting due to such pressure is achieved when the lower surface of the stopper 11 comes into contact with the tip 2a of the flange 2A! ! -1, thereby allowing the pawl 10 to be properly engaged with the hole 12, and preventing more than the necessary pressing force from being applied to the unit cell 3. In the fixed state due to such engagement, sufficient external [[ is added to the cell 3, but the plates η of both cases 1 and 2
Since the center part will be bulging and deformed when it is bent as far as possible, the center part is fixed by screwing the tightening screw 8 into the screw hole 9 provided in the support column 6. This completes the sealed lead acid battery.

As described above, according to this embodiment, in the gaps between the plurality of 91 single cells 3 built in as 11 on the flat surface of both cases 1. 1') by forming reinforcing ribs 15 and 16, and by providing a tightening chain R3 shell 17 between these reinforcing ribs 15 and 16, due to the reinforcing effect of these reinforcing ribs 15 and 16,
In addition to making the boards in cases 1 and 2 as young as possible,
When tightening, the connecting member 17 can be strongly reddened. Furthermore, in both 7 langes 1A and 1B, reinforcing ribs 15.1
The fitting fixing part 1 of both cases 1 and 2 is placed on the opposite side in the extending direction of 6.
8, the reinforcing effect of these reinforcing ribs 15 and 16 allows the fitting to be strongly maintained without loosening, and the fixing can be firmly performed.

Effects of the Invention The present invention has a structure in which both the upper and lower cases are made of wood with extremely thin plate thickness, and the upper and lower cases are made of extremely thin wood, and the inner parts are tightened between the central parts of the upper and lower cases. Even if an extra 1 ton is added to the cell side, it is possible to prevent bulges from deformation in the center of these cases. - The thickness of the talus can be made smaller. In addition, the fitting and fixing part allows the outer peripheral edge to be fixed with two pieces of Φ, and the conventional brim-shaped edge A.
! - Since it can be unscrewed, the external dimensions can be reduced and troubles caused by sparks during spot welding, for example, can be eliminated. Due to these features, the sealed lead acid battery can be made smaller in diameter, thinner, and smaller overall.

Roughly tightening uses a branch that is the same as the inner surface of one case and can freely come into contact with the inner surface of the other case, and a tightening C-shaped screw that can be freely screwed through the screw hole formed in the column of the other case. By constructing this branch, the distance between the middle surfaces of both cases can be covered by 4-regular a-1, the total thickness can be kept constant, and the tightening with the tightening screw can be done by Koto r: Monkey.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional side view of the connecting portion of a sealed lead acid battery according to an embodiment of the present invention, and Figure 2 is a vertical side view of the l111 bottom assembly.
Figure 3 is a longitudinal cross-sectional side view of the fixed part of the same stopper δIS.
Figure 4 is a surface view of a sealed lead-acid battery.
Fig. 5 is a back view of the same, Fig. 6 is a view in the direction of arrow A compared to Fig. 4, Fig. 7 is a view in the direction of arrow 13, Fig. 8 is a view in the direction of arrow C, and Fig. 9 is a view of the conventional It is a side view of a sealed lead acid battery. 1... Upper case, 1A... Flange, 2... Lower case, 2A... Flange, 2a... Tip, 3...
Single battery, 4...Kutsushimi material, 6...Strut, 7.
...Opening hole, 8...N mounting screw, 9...Ladle hole, 1
0...Claw, 11...Stopper, 12...Hole, 1
5.16... Reinforcement rib, 17... Tightening is the connecting part, 1
8... Fitting fixed foot part. Agent Yoshihiro Moriki ≦Figure 7! Figure 1 Figure f 1 ψ ＼ ζN

Claims (1)

[Claims] 1. A pair of upper and lower cases that sandwich a plurality of cells is provided, a tightening connector is provided between the center portions of these cases, and a fitting fixing portion is provided between the outer peripheral edges of these cases. Sealed lead acid battery. 2. A patent claim in which the tightening connector is composed of a support that is fixed to the inner surface of one case and can come into contact with the inner surface of the other case, and a tightening screw that can be screwed into the screw hole of the support that can be inserted through the screw hole of the other case. A sealed lead-acid battery according to item 1.