JPH0728698Y2 - Lead acid battery case - Google Patents

Description

TECHNICAL FIELD The present invention relates to a case for a lead storage battery, particularly a small sealed lead storage battery.

2. Description of the Related Art Conventionally, as shown in FIG. 4, a battery lid and a terminal which have been conventionally used for a lead storage battery case are provided with a hole penetrating the inside and the outside of the battery lid 1 and inserting the terminal plate 3 therethrough. Further, the wall of the battery lid 1 is wrapped and held by the claws 3 ', and the cabinet 2 is inserted inside the lid to fix the terminal plate 3.

Further, the unit cell and the terminal board 3 are electrically connected to each other by providing separate parts such as the lead wire 12 and the like.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In a conventional battery case, a terminal plate is inserted through a through hole provided in the battery lid, and the terminal plate is bent and fixed to the battery lid. In addition, the number of work steps and the number of parts are reduced because of the conduction between each terminal plate and the small sealed lead battery, which is the unit cell, and the anode plate and the cathode plate, and through the parts for insulating the unit battery and each terminal plate. There was a drawback that the cost increased due to the increase.

Further, the outer dimension of the battery case requires a dimension including a dimension of the unit cell and the dimension of the battery case plus a space for accommodating the above-mentioned other component, and thus there is a drawback that it is difficult to downsize.

An object of the present invention is to solve the above-mentioned conventional drawbacks and to fix a terminal plate and conduct electricity to a small sealed lead battery with a simple structure, and to provide a low-cost and small battery case. .

Means for Solving the Problems The battery case of the present invention comprises a side surface notch for inserting a terminal plate on a side surface of a battery lid, and an opening for exposing a terminal plate on a top surface for electrically connecting the terminal plate and a device to be used. And are provided respectively. Further, a terminal plate receiving portion integrally provided in the opening is provided, and a wall and a notch for engaging a terminal plate provided on a side facing the side surface notch of the terminal plate receiving portion are provided. , There is a groove between the terminal board receiving part and the front side of the battery cover.
They are provided in two locations, each being line-symmetric.

Further, one or a plurality of small sealed lead batteries fixed in advance to the back surface of the battery cover with lead or the like respectively connected to the anode terminal and the cathode terminal of both ends of the small sealed lead battery and the terminal board exposing opening are inserted. A substantially L-shaped terminal plate having a terminal portion to be locked and a folded portion connected to the terminal portion is inserted into the opening for exposure from the battery side surface notch portion, and is provided on the wall and the notch facing the side surface notch portion. It is engaged and locked in place by the folded-back portion that has entered the groove.

In addition, a protrusion for preventing the terminal plate from coming off is provided on the back side of the side surface cutout portion of the battery lid. The distance between the protrusion and the wall is set to be 0.1 to 0.2 mm longer than the distance between the terminal plate concave portion and its opposite side.

Action With the above structure, the terminal plate can be easily fixed and conduction with the lead storage battery can be performed without using a separate component.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a completed view of the battery case of the present invention, and FIG. 2 is fixing a small sealed lead battery to the battery lid, and after mounting the terminal plate, the lead part of the terminal plate and the small sealed lead acid battery positive electrode plate and negative electrode plate. Fig. 3 is a perspective view when and are spot-welded, and Fig. 3 is a perspective view in which the terminal plate is inserted into the battery lid.

In FIG. 3, the folded portion 3c is provided in the groove 6 provided between the terminal plate receiving portion 13 and the front side surface of the battery lid, from the side surface notch portion 5 of the battery lid 1 in which the small sealed lead battery 4 is fixed with an adhesive. Insert the terminal plate 3 in the state of being inserted. The terminal plate 3 is inserted until the recess provided in the terminal portion 3b hits the wall 7. At this time, the two convex portions adjacent to the concave portion of the terminal portion 3b enter the notches 8. Further, after the terminal portion 3b is inserted over the protrusion 9 and inserted, the protrusion 9 prevents the terminal plate 3 from falling off.

In FIG. 2, a small sealed lead-acid battery 4 having one side of a rectangular main surface as an anode plate and the opposite side of the rectangular surface as a cathode plate is mounted on a battery cover with terminals of opposite polarities facing each other.

The lead portion 3a of the terminal plate 3 attached to the battery lid 1 and the positive electrode plate 14 and the negative electrode plate 15 of the lead battery are in contact with each other only by inserting them into the battery lid, and by spot welding or soldering The anode plate 14 and the cathode plate 15 are electrically connected to the anode terminal 16 and the cathode terminal 17, and a potential difference can be supplied from each terminal to the equipment used.

Further, FIG. 1 is completed by welding the battery lid and cabinet 2 prepared in FIG.

According to the present invention, by using a pair of positive and negative L-shaped terminal plates without using separate parts such as lead wires, the fixing and the conduction between the terminal plates and the small sealed lead-acid battery can be achieved. With a simple structure, it is possible to provide a low-cost and small-sized battery case.

[Brief description of drawings]

FIG. 1 is a completed perspective view of a small sealed lead battery case in an embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views thereof.
FIG. 4 is a perspective view of a conventional storage battery. 1 ... Battery lid, 2 ... Cabinet, 3 ... Terminal board, 3a
...... Lead part, 3b ...... Terminal part, 3c ...... Folded part, 4 ...
… Small sealed lead-acid battery, 5 …… side cutout, 6 …… groove,
7 ... wall, 8 ... notch, 9 ... protrusion, 10,11 ... distance, 12 ... lead wire, 13 ... terminal plate receiver, 14 ... battery anode plate, 15 ... battery Cathode plate, 16 ... Anode terminal plate, 17 ...
… Cathode terminal plate.

Claims (2)

[Scope of utility model registration request] 1. A case for a lead storage battery, which comprises a battery cover having an anode and a cathode terminal plate and a box-shaped cabinet and is used to pack a unit cell or an assembled battery of a lead storage battery, wherein the battery cover has terminals on its side surface. A side surface notch for inserting a board, an opening for exposing a terminal board for making an electrical connection with a device to be used, a terminal board receiving portion integrally provided in the opening, and a terminal board receiving portion of the terminal board receiving portion. A wall and a notch for engaging a terminal plate provided on the side facing the side surface notch, and a groove provided between the terminal plate receiving portion and the front side surface of the battery cover are provided at two positions in line symmetry. And a unit cell or assembled battery of the lead storage battery fixed to the back surface of the battery lid with an adhesive or the like, and lead portions respectively connected to anode terminals and cathode terminals of both ends of the unit cell or assembled battery. Enter the terminal board exposure opening A substantially L-shaped terminal plate having a terminal portion to be locked and a folded portion connected to the terminal portion is provided, and the terminal portion of the substantially L-shaped terminal plate is exposed from the side surface cutout portion of the lid. Lead-acid battery case inserted into the opening for use, engaged with the wall and the notch facing the side notch, and locked at a predetermined position by the folded-back portion that has entered the groove. . 2. The lead-acid battery case according to claim 1, wherein a protrusion for preventing the terminal plate from coming off is provided on the back side of the side cutout portion of the battery lid.