JPS6271167A - Manufacture of side terminal type lead-storage battery - Google Patents

Abstract

PURPOSE:To improve the work efficiency and make the strength of the connection between an electrode pole and a terminal fixture constant by making the electrode pole provided to a set of plates and a terminal fixture provided at the outside of an electrolytic tank into contact with each other through a side wall of the electrolytic tank and connecting them together by resistance welding. CONSTITUTION:When molding an electrolytic tank 2 made of synthetic resin, a terminal fixture 1 is cast in so that its protruding surface 1a becomes flush with the inner surface of the side wall 3 of the electrolytic tank 2. An electrode pole 6 is provided to a set of plates 4 which consist of multiple positive plates and negative plates bound together with straps 5. The electrode pole 6 is brought into contact with the protruding part 1a of the terminal fixture 1 and the contact is resistance-welded by placing a pair of electrodes 11 of a resistance welder on both sides of the contact, to connect the terminal fixture 1 to the set of plates 4 of a side terminal type lead-storage battery. Thus welding process is made easy so that it can be automated and the strength of the connection can be made constant without uneveness.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application 1 The present invention relates to a method for manufacturing a side coo-mill type lead-acid battery.

[Prior Art] In the conventional manufacturing method of this type, as shown in FIG. The projecting portion 1a of the terminal fitting 1 is exposed to the inner surface of the battery case 2 through the battery case 2. On the other hand, a group of electrode plates 4 is installed in the battery case 2, and a hole 7 for an additional lead reservoir in a pole column 6 planted in the strap 5 of the electrode group 4 is connected to a terminal metal fitting exposed inside the side wall 3. Add the tip 8) aligned with the protruding portion 1a of 1, melted by a burner, etc., and insert it into the Kl reservoir hole 7, and set the pole +t6.
and the terminal fitting 1 were connected.

[While the invention is trying to solve the problem': (t+:i) In the above-mentioned conventional method of manufacturing li! When injecting the lead 8 into the hole 7, do not overflow the lead 8 from the lead reservoir hole 7 by tilting the battery case 2 sideways. , there was a problem that the injection work was troublesome.Also, when the molten lead 8 was brought into contact with the protrusion 1a of the terminal metal 01 and the two were connected, the pole +1
6 and Q: 1: There was a problem in that it was desirable to maintain a certain level of strength at the connection part with the hanging fitting 1.

An object of the present invention is to maintain a pole pole and a terminal fitting with constant strength.
The purpose of this invention is to propose a method for manufacturing a side terminal type hook storage battery that can be connected.

[Means for Solving the Problems] The present invention will be described with reference to FIG. 1 showing an embodiment thereof.A group of electrode plates 5 is arranged inside a battery case 2, and the electrode plates 5 are arranged inside a battery case 2. ! T
5) A method for manufacturing a lead-acid terminal lead-acid battery, in which the upper pole 6 (provided on the pole 6) and the terminal fitting 1 disposed outside the battery case 2 are connected. and the terminal fitting 1 are connected by resistance welding with one or both of them brought into contact with the phase n through the side wall of the battery case 2.

[Saku Kawa] Like the book L! 17 and the terminal fitting 1 are connected by resistance welding, it is possible to increase the strength of the connection part and to avoid a certain amount of stress at the connection part. , can be easily performed.

[Example 1 Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

FIG. 1 is an explanatory diagram of an example of implementing the manufacturing method of the present invention. To explain the manufacturing method of the present invention with reference to the figure, first, a synthetic resin battery case 2 is molded. Terminal fitting 1
take over. This terminal fitting 1 has a screw hole 1b exposed on the outside.
and a protrusion 1a that protrudes inward, and the protrusion 1a is positioned flush with the inner surface of the side wall 3 of the battery case 2.

Further, a plurality of anode plates and cathode plates are connected by straps 5 to form an electrode plate group 4. Next, pole 4 is attached to the electrode plate group 4.
16 is installed in step 4) to form a unit cell structure 9, and the unit cell structure 9 is loaded into each unit cell tank 10 of the battery case 2. Adjacent Li battery assemblies 9 on the back side of the cell assemblies 9 loaded in each cell tank 10 are connected by an inter-cell connection portion (not shown), and the cell assemblies 9 at both ends are connected to each other using the pole posts 6. Connect with metal fitting 1. The pole (16) is connected to the terminal fitting 1 by placing a pair of electrodes 11 of a resistance welding machine (not shown) at an outer position of the pole column 6 and an outer position of the terminal fitting 1.
This is done by bringing the protruding portion 1a of the pole 6 into contact with the pole column 6, and resistance welding the contact portion.

At this time, it is preferable that a protrusion 12 be provided on the electrode 11 that contacts the pole column 6, and that the protrusion 12 concentrates the initial current to increase the amount of heat generated.

Resistance welding between the terminal fitting 1 and the pole post 6 is performed by welding the protrusion 1a of the terminal fitting 1 and the protrusion 6a formed on the pole post 6 within the thick part of the side wall 3 of the battery case 2, as shown in FIG. Alternatively, as shown in No. 31, the terminal fitting 1 does not have a protruding part and the terminal is placed on the same plane as the outer surface of the side wall 3 of the battery case 2. The metal fitting 1 and the protruding portion 6a of the pole post 6 may be brought into contact with each other.

[Effect of the invention 1 As described above, according to the present invention, the pole pole and the terminal fitting are connected by resistance welding, so there is no need to lay down the battery case and perform welding as in the conventional method. In addition, the welding work can be easily performed and the welding work can be easily automated.Furthermore, the strength of the joint can be increased and the strength can be kept constant.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of an example of implementing the '7J manufacturing method of the present invention, and Fig. 2 a3 J: and Fig. 3 are cross-sectional views showing deformation of the melt 1a position in the manufacturing method of the present invention. Figure, 4th
Figure t is a four side view showing a conventional manufacturing method. 1... Terminal fitting, 2... Battery case, 4... Pole plate Y,
0...Polar pillar. Figure 3 1θ Figure 2 Figure 4

Claims (1)

[Scope of Claims] A side terminal type manufactured by arranging a group of electrode plates inside a battery case, and connecting a pole column provided on the group of electrode plates and a terminal fitting arranged outside the battery case. In the method for manufacturing a lead-acid battery, the pole pole and the terminal fitting are connected by resistance welding with one or both of them penetrating the side wall of the battery case and in contact with each other. A method of manufacturing a side terminal type lead-acid battery.