CN201274305Y - Plastic protection cushion for lead acid accumulator through-hole welding - Google Patents

Abstract

The utility model discloses a plastic protective gasket for lead-acid accumulator through-wall welding, which is a circular slice (1), wherein, a step (3) is arranged on the periphery of an inner ring hole (2) of the circular slice (1); the shapes and the sizes of the circular slice (1), the inner ring hole (2) and the step (3) on the periphery of the inner ring hole (2) are determined according to the shape and the size of a partition wall welding hole of an accumulator slot as well as the thickness of the partition wall. The utility model has simple structure, low cost and convenient operation, prevents the hair side of a perforated hole and the melting plastic from being directly mixed with the cross section of the through-wall welding in the process of the through-wall welding, increases the welding area, reduces the resistance welding, and meanwhile, prevents unqualified flying lead products by the through-wall welding.

Description

A kind of lead acid accumulator through-wall welding protects pad with plastics

Technical field

The utility model relates to the accessory of storage battery, the plastics protection pad that particularly a kind of lead acid accumulator through-wall welding is used.

Background technology

Through-wall welding is an extremely important link of lead acid accumulator assembling, through-wall welding with manually stride bridge welding and compare and have an enormous advantage.Adopt the battery of through-wall welding, current path is short, and resistance is little, helps improving the heavy-current discharge performance of battery, and consumption is plumbous few, and cost is low.Yet through-wall welding is by punching the wall welding hole in advance on battery cell plastics partition wall, passing a kind of mode that weld in the partition wall hole again.When carrying out the partition wall punching, meeting residual plastic burr on the periphery in hole, and the big electric current that passes through during through-wall welding further melts because of thermal effect can make the plastics of through-wall welding hole periphery, the plastics of this plastics burr and fusing can be mixed in the through-wall welding welded section, and bonding area is reduced, and solder joint resistance increases, directly have influence on the effect of battery through-wall welding, and then have influence on the performance of whole battery, and serious fly lead also can cause the battery through-wall welding time, cause defective products.

Summary of the invention

The purpose of this utility model is: provide a kind of lead acid accumulator through-wall welding to protect pad with plastics, by in the through-wall welding hole, laying this plastics protection pad in advance, the plastics that melt when avoiding punching burr and through-wall welding directly are mingled with in the middle of the welded section of through-wall welding, increase bonding area, reduce to weld resistance, can prevent that through-wall welding from flying the plumbous defective products that produces simultaneously.

Technical solution of the present utility model is: this plastics protection pad is a kind of ring-like lamellar body of PVC plastic material of ability higher temperature, and at the interior annular distance outer periphery step of ring-like lamellar body, step and through-wall welding hole are used.

A kind of lead acid accumulator through-wall welding of the present utility model is with in the plastics protection pad, and the shape and size of annular distance and external stairs thereof are determined according to shape, size and the partition wall thickness in battery case partition wall through-wall welding hole in the plastics protection pad that through-wall welding is used.

Before through-wall welding connects, in advance the battery case partition wall is punched, punch position is determined the position of weldment according to through-wall welding; After the punching, lay plastics protection pad in the same side in each through-wall welding hole, carry out utmost point group then and go into shell, adjust again the weldment position, assurance coincide to face of weld center and protection pad endoporus center to weldment, butt welding electrode position and the through-wall welding of adjusting the through-wall welding machine at last connect technological parameter, carry out through-wall welding and connect; The air-tightness that battery after through-wall welding connects wears long after the heat-sealing of the Non-Destructive Testing of wall solder joint and groove lid detects, and guarantees that through-wall welding connects reliably, does not collaborate through the through-wall welding hole between each monomer.

The beneficial effects of the utility model:

1, use this plastics protection pad, the plastics burr that produce in the time of can stopping the partition wall punching avoid the plastics burr directly to be mingled with in the middle of the welded section, guarantee welding quality.

2, this protection pad material is the PVC plastics, compares the battery case material, the temperature that ability is higher, when battery when through-wall welding connects, can not make the plastic molting of through-wall welding hole periphery because of the thermal effect of electric current.

3, through-wall welding is connected under the situation that the plastics that do not have plastics burr or fusing are mingled with, and is favourable to improving welding effect, can fully guarantee the conductive area that through-wall welding connects, and reduces the generation that flies plumbous defective products.

4, acidproof, heat insulation, the sealing of this plastics protection pad, simple in structure, easy to operate, with low cost.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1 ring slice, 2 interior annular distances, 3 steps.

Embodiment

As shown in Figure 1, this plastics protection pad is ring-like lamellar body 1, at the interior annular distance 2 outer periphery steps 3 of ring-like lamellar body 1.

A kind of lead acid accumulator through-wall welding described in the utility model protects pad with plastics, and the shape and size of ring slice 1, interior annular distance 2 and external stairs 3 thereof are determined according to shape, size and the thickness in battery case partition wall hole.

Before through-wall welding connects, in advance the battery case partition wall is punched, punch position is determined the position of weldment according to through-wall welding; After the punching, lay plastics protection pad in the same side in each through-wall welding hole, carry out utmost point group then and go into shell, adjust again the weldment position, assurance coincide to face of weld center and protection pad endoporus center to weldment, butt welding electrode position and the through-wall welding of adjusting the through-wall welding machine at last connect technological parameter, carry out through-wall welding and connect; The air-tightness that battery after through-wall welding connects wears long after the heat-sealing of the Non-Destructive Testing of wall solder joint and groove lid detects, and guarantees that through-wall welding connects reliably, does not collaborate through the through-wall welding hole between each monomer.

Claims (1)

1. the plastics protection pad used of a lead acid accumulator through-wall welding, it is characterized in that: this protection pad is ring-like lamellar body (1), at interior annular distance (2) the outer periphery step (3) of ring-like lamellar body (1).

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