JP2515063Y2 - Small sealed lead acid battery lid - Google Patents

Description

[Detailed description of the device]

[0001]

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

[0002]

2. Description of the Related Art As a conventional lid for a small sealed lead acid battery,
Partitioned on the back side of the lid with a partition wall crossing the width direction of the lid
A plurality of cell chambers arranged in the longitudinal direction of the lid, and
On the outside of the exhaust valve unit which is disposed in a central portion of Futaitadakikabe corresponding to the cell chamber of the respective i.e. the partition Setsukabe orthogonal and to該Se
It is known that an adhesive groove for accommodating and binding the ear group connection strap portion of the electrode plate group is provided on the back surface of the lid top wall in parallel to the arrangement direction of the chamber and the exhaust valve portion. . Using the lid, the storage battery is assembled in the following manner, that is, the back surface of the storage battery is faced upward, the adhesive groove is filled with an adhesive, and then a lead storage battery electrode plate group is incorporated into the battery case. Upside down,
A small sealed lead-acid battery is assembled by inserting the ear group connecting strap portion of the electrode plate group into the adhesive groove and burying and binding the strap portion in the adhesive groove.

[0003]

In the conventional small sealed lead-acid battery lid, as described above, the ear group connecting strap portion of the electrode plate group is inserted and filled in the adhesive groove filled with the adhesive. In the process of, the adhesive in the adhesive groove overflows,
Assemble a good small sealed lead-acid battery, which tends to cause problems such as depositing on the back surface of the outer periphery of the exhaust valve portion inside and further contaminating the exhaust valve portion and hindering the operation of the normally closed valve. Is not obtained, which causes inconvenience such as production loss. The present invention is to solve such a problem.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a lid for a small sealed lead acid battery which solves the above-mentioned conventional inconvenience and ensures a good assembly of a small sealed lead acid battery.
The length of the lid is divided by a partition wall that crosses the width direction of the lid.
A plurality of cell chambers arranged side by side are arranged, and each cell is
A plurality of exhaust valve parts are arranged in the central part of the lid top wall corresponding to the chamber.
And the ear group connection strut of the electrode group on the back side of the lid top wall.
An adhesive groove for accommodating and binding the cap portion is provided on the outside of the exhaust valve portion.
Arrangement of the cell chamber and the exhaust valve portion orthogonal to the cut wall
For a small sealed lead-acid battery lid that is installed parallel to the direction.
And, of both side walls provided along the length direction of the adhesive groove,
The inner wall adjacent to the exhaust valves portion and forming higher than the outer <br/> sidewall adjacent the peripheral side wall of the lid, the peripheral side of the outer side wall and the lid
A surplus adhesive receiving groove is provided between the wall and the parallel to the adhesive groove.

[0005]

The function of the present invention is to fill the adhesive groove with the adhesive with the back surface of the lid facing upward, and then insert the inverted ear plate connecting strap portion of the electrode plate group into the adhesive groove. It is embedded and bonded in the filling adhesive, but along the length of the adhesive groove.
Of the side walls provided I, side walls among adjacent the exhaust valves portion
Since the is formed higher than the outer side wall adjacent the peripheral side wall of the lid, with the insertion of the ear group connecting strap, case any excess in the filling adhesive of the adhesive in the groove, the adhesives, Overflowing over the lower outer wall, the outer wall and the lid
Is provided in parallel with the adhesive groove between the peripheral side wall in the longitudinal direction of
Since it is received in the excess adhesive receiving groove, it does not overflow beyond the inner wall having a higher height, and as a result, the adhesive is deposited on the outer peripheral back surface of the exhaust valve portion or It is prevented from flowing into the exhaust valve portion and obstructing the valve operation.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings. In the drawings, reference numeral 1 shows a lid for a small sealed lead acid battery for 6 cells of the present invention. The lid 1 has a casing-shaped composition including an oblong lid top wall 1a and a rectangular peripheral side wall 1b fitted around the periphery of a battery case on the outer periphery thereof and having a fitting groove that is airtightly bonded with an adhesive. It is formed on a resin molding lid. In the illustrated example, the
On the back surface of the lid 1, the width of the lid 1 corresponding to the 6-cell battery case
It is partitioned by a partition wall 5 that traverses in the direction of the length of the lid 1.
6 cell chambers are arranged side by side, and 6 cells are arranged in the center of the lid 1.
Six exhaust valve parts 2 are arranged corresponding to each cell chamber.
The exhaust valve 2 includes a through hole 2a penetrating the lid top wall 1a, a cylindrical body 2b protruding on the inner and outer surfaces of the lid top wall 1a on the outer periphery of the through hole 2a, and an outer end portion of the cylindrical body 2b. It consists of a normally closed valve 2c made of a rubber cap-like cap that is fitted airtightly by elasticity. On the outside of the exhaust valves 2, wherein the back surface of the lid top wall 1a
The cell chamber and the exhaust valve section are arranged at right angles to the partition wall 5.
An adhesive groove 4 for accommodating the ear group connection strap portion 3 (see FIG. 2) of the electrode plate group is formed parallel to the installation direction . More specifically, the arrangement of the adhesive groove 4 was formed as follows. That is, among the 6 cell chambers formed on the back surface of the lid , at the locations corresponding to the middle 4 cell chambers, the width direction of the lid 1 of each exhaust valve portion 2 is
The adhesive grooves 4 and 4 are provided on both sides of the
At the location corresponding to each cell chamber, the adhesive groove 4 is formed only on one side of each exhaust valve portion 2. Further, the lid on the back surface of the top wall 1a, the partition walls 5, 5, ... the length direction of each phase for binding to the partition wall abuts hermetically partitioning the inside the container into six cells chamber Tonariru The adhesive grooves 4 and 4 are alternately arranged on the left and right so as to be partitioned alternately, and on the side not partitioned by the partition wall 5, the adhesive grooves 4 and 4 adjacent to each other in the length direction are connected to each other. The right and left are formed alternately. Thus, the lid is installed in the battery case.
Each of the lead-acid battery electrode plate groups, which protrudes on both sides of each and is alternately connected to the cathode ear group and the anode ear group connected in series with a strap, is turned upside down, and the respective shades arranged on the left and right sides thereof are inverted. , The strap portions in which the positive electrode ear groups are connected in series are formed on the rear surface of the lid 1 on the left and right, respectively, in the corresponding adhesive grooves 4, 4, ...
Used to be inserted inside. The above is no different from the conventional lid, but according to the present invention, the lid 1 of each exhaust valve portion 2 is
Of both side walls 4a, 4b provided along the length direction of each adhesive groove 4 formed on only one side or both sides in the width direction of the
Then, the height of the inner wall 4a adjacent to the exhaust valve unit 2 is
With higher than an outer side wall 4b adjacent to the peripheral side wall 1b lid 1, the peripheral side in the longitudinal direction of the outer side wall 4b and the lid 1
A surplus adhesive receiving groove 6 is provided between the wall 1b and the adhesive groove 4 in parallel with the adhesive groove 4.
Is formed.

In order to assemble and manufacture a sealed lead acid battery using the above-mentioned sealed lead acid battery lid of the present invention, the lid is placed on a mounting table or the like with the back surface facing upward, as in the conventional case.
An appropriate amount of adhesive a is filled in each of the adhesive grooves 4, and then 6 electrode plate groups are preliminarily incorporated in the 6-cell battery case 7 and projecting on both sides thereof and arranged alternately, cathode ear groups and anode ear groups. , Are connected in series with straps, the battery case 7 is turned upside down, and the negative and positive ear group connecting strap portions 3, 3, ..., which are alternately arranged on both sides of the battery case 7, are inserted into the filling adhesive a. Embed and bond inside. On the other hand, at the same time, the lower end of the peripheral side wall of the battery case 7 is fitted into the fitting groove of the peripheral side wall 1b of the lid 1 via the adhesive a, and left in this state to solidify the adhesive to form a small seal. Finished assembling the lead acid battery. In this case, when the ear group connecting strap portion 3 is inserted into the adhesive groove 4, even if the filling adhesive a in the adhesive groove 4 is excessively filled, the outer wall 4b of the adhesive groove 4 is Since it is formed lower than the inner wall 4a, the excess adhesive overflows beyond the outer wall 4b and flows into the excess adhesive receiving groove 6 on the outer side thereof, so that the inner wall 4a Overflow to the exhaust valve 2 side is prevented. Therefore, all the above-mentioned conventional inconveniences are eliminated, and a good quality small sealed lead acid battery can be manufactured without manufacturing loss.

Preferably, the excess adhesive receiving groove 6 is shown in FIG.
As shown in (4), it is preferable to form the groove deeper than the adhesive groove 4 because the receiving capacity of the surplus connecting agent can be increased. In the illustrated embodiment, the receiving groove 6 is adjacent to the inner wall surface of the peripheral side wall 1b having the fitting groove of the lid, and the inner wall surface and the lid top wall 1.
It is formed by surrounding by a long frame wall 6a protruding to the back surface of a, and the adhesive groove 4 is a rectangular shape that projects from one side wall of the frame wall 6a and the back surface of the lid top wall and surrounds the exhaust valve portion 2. 1 is formed by being surrounded by one side wall of the surrounding frame 8 and the partition wall 5.

[0009]

As described above, according to the present invention, the adhesive groove for inserting and binding the ear group connecting strap portion of the electrode plate group provided outside the exhaust valve provided in the central portion of the lid top wall is provided. The exhaust
Adjacent the inner wall adjacent to the valve to the peripheral side wall in the length direction of the lid.
The height of the outer wall and the lid is higher than that of the outer wall in contact with the outer wall.
Since the lid has a surplus adhesive receiving groove formed in parallel with the adhesive groove in the direction side wall, the ear group connecting strap portion of the electrode plate group is inserted into the adhesive groove filled with the adhesive. When the filling amount of the adhesive is excessive, the excess amount overflows beyond the outer wall having the lower height of the adhesive groove and is received in the excess adhesive receiving groove on the outer side thereof. Therefore, it is possible to prevent the excess adhesive from overflowing to the exhaust valve side, and therefore, the excess adhesive deposits on the back surface of the outer periphery of the exhaust valve or contaminates the exhaust valve, thereby hindering the valve operation. It is possible to smoothly assemble a high quality small sealed lead acid battery without manufacturing loss. Further, in this case, when the receiving groove is formed deeper than the adhesive groove, the receiving capacity of the surplus adhesive can be increased, which is advantageous.

[Brief description of drawings]

FIG. 1 is a back view of a small sealed storage battery lid according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

[Explanation of symbols]

1 lid 1a lid top wall
1b Peripheral side wall 2 Exhaust valve part 3 Ear group connection strap part 4 Adhesive groove 4a Inner side wall
4b Outer wall 6 Excessive adhesive receiving groove

Claims (2)

(57) [Scope of utility model registration request] 1. A partition which crosses the width direction of the lid on the back surface of the lid.
A plurality of cell chambers separated by a wall and arranged in the length direction of the lid
Inside the top wall of the lid, which is arranged corresponding to each cell chamber
A plurality of exhaust valve parts are arranged in the central part, and the back surface of the lid top wall
Adhesive for accommodating and binding the ear group connection strap part of the electrode plate group
A groove on the outside of the exhaust valve section, which is orthogonal to the partition wall, and
The cell chamber and the exhaust valve section are provided in parallel with each other.
In a small sealed lead-acid battery lid, the length direction of the adhesive groove
Inside of both side walls provided along the side adjacent to the exhaust valve section
The wall is formed higher than the outer wall adjacent to the peripheral side wall of the lid and parallel to the adhesive groove between the outer wall and the peripheral side wall of the lid.
And a lid for a small sealed lead acid battery, which is provided with an excess adhesive receiving groove. 2. The lid for a small sealed lead acid battery according to claim 1, wherein the excess adhesive receiving groove is formed deeper than the adhesive groove.