JPH04127960U - Small sealed lead acid battery lid - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] When assembling a small sealed lead-acid battery, insert the ear group connecting strap part of the electrode plate group into the adhesive groove provided on the back side of the lid for the small sealed lead-acid battery, and apply the adhesive. Prevent excess adhesive pre-filled in the groove from overflowing to the exhaust valve provided in the center of the lid, contaminating the exhaust valve, and obstructing the operation of the exhaust valve. To provide a lid for a small-sized sealed lead-acid battery, which allows the small-sized sealed lead-acid battery to be assembled smoothly and satisfactorily. [Structure] Exhaust valve part 2 provided in the center of the front wall 1a of the lid 1
The inner wall 4a of the adhesive groove provided on the outside is formed higher than the outer wall 4b, and an excess adhesive receiving groove 6 is formed on the outside of the outer wall.
It is formed by forming.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a lid for a small sealed lead acid battery.

0002

[Conventional technology]

As a conventional lid for small sealed lead-acid batteries, the outside of the exhaust valve part installed in the center of the top wall of the lid. Located on the side, the ear group connecting strap part of the electrode plate group is accommodated and tied to the back side of the top wall of the lid. It is known to have adhesive grooves for this purpose. Using the lid, do the following: Assemble the battery, i.e., with the lid facing upward, fill the adhesive groove with adhesive. After that, turn the battery case with the lead-acid battery plate group inside it upside down and remove the corresponding plate group. Insert the ear group connecting strap part into the adhesive groove, and bury the strap part in the adhesive groove. Assemble a small sealed lead-acid battery by attaching and tying.

0003

[Problem that the idea aims to solve]

In the conventional small sealed lead-acid battery lid, as described above, the lid is filled with adhesive. In the process of inserting and filling the ear group connecting strap portion of the electrode plate group into the adhesive groove, The adhesive in the adhesive groove overflows and accumulates on the back surface of the lid around the outer circumference of the exhaust valve inside the groove, causing further damage. This may cause problems such as contaminating the exhaust valve and interfering with the operation of the normally closed valve. , it is difficult to assemble a small sealed lead-acid battery, resulting in manufacturing losses and other inconveniences. bring about a combination. The purpose of this invention is to solve such problems.

0004

[Means to solve the problem]

The present invention solves these conventional disadvantages and enables the assembly of small sealed lead-acid batteries. This is related to a small sealed lead-acid battery lid that guarantees Located on the outside, the ear group connecting strap part of the electrode plate group is housed and tied to the back surface of the top wall of the lid. In a lid for a small sealed lead-acid battery having an adhesive groove, the inner wall of the adhesive groove is removed from the outside. The outer wall is formed higher than the side wall, and a surplus adhesive receiving groove is provided on the outside of the outer wall. Ru.

[0005]

[Effect]

The lid of the present invention was filled with adhesive into the adhesive groove with its back side facing upward. After that, insert the ear group connecting strap part of the upside-down electrode plate group into the adhesive groove, and connect the filling connection. The adhesive groove is embedded in an adhesive and bonded, but the adhesive groove is shaped in advance so that its inner wall is higher than its outer wall. Since the ear group connecting strap part is inserted, the adhesive groove is filled with adhesive. If there is excess adhesive, the adhesive will spill over the lower outer wall. The inner wall of the taller side is received in the excess adhesive receiving groove on the outside thereof. As a result, the adhesive does not overflow beyond the exhaust valve area, and as a result, the adhesive is deposited on the back surface of the outer periphery of the exhaust valve part. Otherwise, it is prevented from flowing into the exhaust valve section and obstructing the valve operation.

[0006]

【Example】

Next, embodiments of the present invention will be described based on the accompanying drawings. In the drawings, reference numeral 1 indicates a lid for a small sealed lead-acid battery for 6 cells according to the present invention. The lid 1 is long The rectangular lid top wall 1a and its outer periphery are fitted onto the periphery of the battery case and are airtightly bonded with an adhesive. Formed on a box-shaped synthetic resin molded lid consisting of a rectangular circumferential wall 1b having a fitting groove. has been done. In the illustrated example, six cells corresponding to six-cell battery cases are placed in the center of the lid 1. Six exhaust valve parts 2 are provided corresponding to the cell chambers. The exhaust valve 2 penetrates the lid top wall 1a. A through hole 2a to pass through and a cylindrical body protruding from the inner and outer surfaces of the lid top wall 1a on the outer periphery of the through hole 2a. 2b and a rubber cap shaped airtightly fitted to the outer end of the cylindrical body 2b. and a normally closed valve 2c. On the outside of the exhaust valve section 2, there is a back surface of the lid top wall 1a. An adhesive groove 4 for accommodating the ear group connecting strap portion 3 (see FIG. 2) of the electrode plate group is formed in the electrode plate group. . More specifically, the adhesive grooves 4 were arranged as follows. In other words, there is a shape on the back side of the lid. In the locations corresponding to the middle four cell chambers among the six cell chambers formed, each exhaust valve is The adhesive grooves 4, 4 are arranged on both sides of the part 2, and the areas corresponding to the two cell chambers at both ends thereof. Now, the adhesive groove 4 is formed only on one side of each exhaust valve part 2. Furthermore, the lid top wall 1a On the back side, there is a partition wall that contacts and airtightly connects the partition wall that partitions the inside of the battery case into six cell chambers. 5. and on the side not partitioned by the partition wall 5, the adhesive grooves 4, 4 adjacent to each other in the longitudinal direction are formed alternately on the left and right sides of the bonding grooves that communicate with each other. Thus, the lid is placed on both sides of each of the six lead-acid battery plate groups assembled in the battery case. The protruding and alternately arranged cathode ears and anode ears are connected in series with straps. The device was turned upside down, and the negative and anode ears placed on the left and right sides were connected in series. The strap portion is attached to the corresponding adhesive grooves 4, 4, formed on the left and right sides of the back surface of the lid 1. ...used to be inserted within. The above is the same as the conventional lid, but according to the present invention, there is a lid on the outside of each exhaust valve 2. The exhaust valve 2 side of each adhesive groove 4 formed on only one side or on both sides, that is, the inner wall surface 4a is formed to have a height higher than its outer wall 4b, and a surplus adhesive is received on the outside of the adhesive groove 4. It is characterized by having a receiving groove 6 formed therein.

[0007] Assemble and manufacture sealed lead-acid batteries using the lid for sealed lead-acid batteries of the present invention. To make a new product, place the lid on a mounting table with the back side facing up, as in the conventional case. Fill each adhesive groove 4 with an appropriate amount of adhesive a, and then place 6 electrode plates in a 6-cell battery case 7 in advance. and a strut with cathode ear groups and anode ear groups arranged alternately and protruding on both sides. After connecting the battery case 7 in series with a Insert the negative and anode ear group connecting strap parts 3, 3, ..., respectively, and bury them in the filling adhesive a. Enter and conclude. Meanwhile, at the same time, the lower end of the circumferential wall of the battery case 7 is fitted into the circumferential wall 1b of the lid 1. It is fitted into the matching groove with adhesive a, and left in this state to solidify the adhesive. Completed assembly of sealed lead-acid batteries. In this case, when the ear group connecting strap part 3 is inserted into the adhesive groove 4, the adhesive Even if the filling adhesive a in the groove 4 is excessively filled, the outer wall 4b of the adhesive groove 4 is formed lower than the inner wall 4a, so the excess exceeds the outer wall 4b. Since the excess adhesive overflows and flows into the excess adhesive receiving groove 6 on the outside thereof, the inner wall 4a is Overflowing to the exhaust valve portion 2 side is prevented. Therefore, the above-mentioned conventional disadvantages All problems are eliminated, and high-quality small sealed lead-acid batteries can be manufactured without production loss.

[0008] Preferably, the surplus adhesive receiving groove 6 is deeper than the adhesive groove 4, as shown in FIG. It is preferable to form the groove in a groove because it increases the capacity for receiving excess connecting agent. In the embodiment shown in the drawings, the receiving groove 6 is formed on the inner wall surface of the peripheral side wall 1b having the fitting groove of the lid. Surrounded by a longitudinal frame wall 6a that protrudes adjacently to the inner wall surface and the back surface of the lid top wall 1a. The adhesive groove 4 is formed by protruding from one side wall of the frame wall 6a and the back surface of the lid top wall. The exhaust valve part 2 is surrounded by one side wall of a rectangular surrounding frame 8 and the partition wall 5. The figure shows what was formed.

[0009]

[Effect of the idea]

In this way, according to the present invention, the exhaust valve is located outside the exhaust valve provided in the center of the top wall of the lid. Insert the inner wall of the adhesive groove into which the ear group connecting strap part of the electrode plate group is inserted and fastened. a lid that is formed higher than the outer wall and has an excess adhesive receiving groove formed on the outside of the adhesive groove; Therefore, insert the ear group connecting strap part of the electrode plate group into the adhesive groove filled with adhesive. If the amount of adhesive is excessive when the adhesive is inserted, the excess amount will be reduced The excess adhesive overflows over the outer wall on the other side and is received in the excess adhesive receiving groove on the outer side. This can prevent excess adhesive from overflowing to the exhaust valve side, and therefore prevent the excess adhesive from overflowing to the exhaust valve side. deposits on the back surface of the outer periphery of the exhaust valve, or contaminates the exhaust valve and obstructs valve operation. High-quality small sealed lead-acid batteries can be assembled smoothly and without manufacturing loss. It has the following effects. In this case, when forming the receiving groove deeper than the adhesive groove, excess adhesive This is advantageous because it can increase the receiving capacity of .

[Brief explanation of drawings]

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

FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1;

[Explanation of symbols]

1 Lid 1a Lid top wall
1b Circumferential wall 2 Exhaust valve part 3 Ear group connection strap part 4 Adhesive groove 4a Inner wall
4b Outer wall 6 Surplus adhesive receiving groove

Claims (2)

[Scope of utility model registration request] Claim 1: An adhesive groove is provided on the back surface of the lid top wall, located outside the exhaust valve provided in the center of the lid top wall, for accommodating and binding the ear group connecting strap portion of the electrode plate group. A lid for a small sealed lead-acid battery comprising: an inner wall of the adhesive groove being formed higher than an outer wall; and an excess adhesive receiving groove provided on the outside of the outer wall. 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.