JPS5831330Y2 - Substrate for battery electrode plates - Google Patents

Description

[Detailed Description of the Invention] Conventionally, electrode substrates incorporated as electrodes for automobile batteries have been made by casting, punching, etc., but especially when manufactured by punching, it is possible to manufacture extremely thin substrates.
The thin board uses a relatively soft material such as a lead plate as the punched cable material, and consists of a lattice plate with a flat lattice frame made from the very thin plate and a flat plate extending outward from the lattice frame. In order to punch out and form a piece with a shaped lug 2,
In particular, the mechanical strength of the ears is weak, and when the electrode plates stretch during filling with active material, assembly of battery electrode plates, and charging/discharging,
The ears are susceptible to deformation, especially at their bases.

The present invention provides a substrate for battery electrode plates that eliminates the above-mentioned drawbacks, and includes a flat lattice frame 1b of the lattice plate 1 and a flat lattice frame 1b of the lattice plate 1;
In a battery electrode plate substrate consisting of a flat plate-shaped tab 2 provided extending outward from b, the lattice frame 1b side and the plate-shaped tab 2 side are straddled, and the imaginary boundary line a is It is formed by bending at least one orthogonal protrusion 3.

An unconventional embodiment will now be described with reference to the accompanying drawings.

In the drawing, reference numeral 1 indicates a thin lattice plate punched from a thin blank lead plate. It consists of a lattice frame 1b, and has flat camphor-like ears 2 projecting vertically upward on its upper edge 1 side, and these are punched out at one time from a thin lead plate to form a lattice substrate.

The substrate is easily bent by external pressure along the illustrated imaginary edge a in the boundary region between the lattice frame 1b and the plate-like ears 2.

According to the present invention, at least one protrusion 3 is bent to extend over the surface of the lattice frame 1b and the surface of the plate-like ears 2, that is, beyond the boundary line a, and perpendicular thereto.

In the embodiment shown in the first figure, three parallel protrusions 3, 3.3 are bent.

In such a case, even if pressure is applied from the top surface when filling the active material,
It does not bend easily and does not bend due to shocks applied during assembly as a battery electrode plate group or during use.

FIG. 3 shows a modified example, in which a protrusion surrounding frame 4 surrounding the four sides of the flat lattice frame 1b is bent at the center in the radial direction, thereby improving the bending strength of the grid frame 1b. An unconventional method was applied to the board, and a part of the upper protruding frame 4a of the protruding frame 4 was extended and introduced into the plane of the protruding plate-shaped tab 2 so as to be perpendicular to the boundary line a. It is formed on a U-shaped frame having two parallel protrusions 3, 3 of the present invention, and these parallel protrusions 3, 3 are
Together with a separate protrusion 3 similar to that shown in Fig. 1, this serves to prevent the plate-shaped lug 2 from bending from the base of the border line a, and at the same time, it has the effect described in detail below. Have both.

In other words, in the case where the protruding ridges 4 are provided by bending on the flat lattice frame 1b surface of the baffle board, the outer surface along the ridges of the ridges 4 (the frozen part is relatively thin, and the retention is However, according to the present invention, a part of the upper side frame 4a can be bent vertically at the outer edge indicated by the imaginary mark b along the upper side bar 4a of the projecting frame 4 that extends horizontally. It is formed on a U-shaped frame extending in two areas of the ears, and is provided with vertical parallel protrusions 3, 3 directly facing the imaginary line b, that is, the horizontally extending outer edge. Prevents bending.

In addition, in Fig. 3, the parallel protrusions 3.3 of the U-shaped frame are
The upper side frame 4a extends along the upper side of the lattice plate 1.
It is configured in a longitudinal direction with an extension part 3a perpendicular to the extension line of
The extension portion 3a is connected to a short upper side frame 4a' provided below the long upper side frame 4a, thereby improving the bending strength of the upper side surface of the uneven board lattice frame 1.

In this way, according to the present invention, the lattice plate 1 spans the flat chanter frame 1b surface and the flat plate-like ears 2 that extend outwardly from this surface, and faces the imaginary boundary line a. Since at least one orthogonal protrusion 3 is bent and formed, it has the effect of reliably preventing the plate-shaped selvage 2 from being bent for a long time from the base.

[Brief explanation of the drawing]

Figure 1 shows an example of the actual rod of the present invention, and Figure 2 shows ■
Figure 3 shows a slope view of the main part of the pond. 1... Lattice plate, 1b... Flat lattice ridge, 2... Flat plate-like ears, a... Boundary rug, 3
...Protrusion.

Claims (1)

[Scope of utility model registration request] In a battery electrode plate substrate consisting of a flat lattice frame 1b of a lattice plate 1 and a flat plate-shaped lug 2 extending outward from the lattice frame 1b, the lattice frame 1b side and the plate-shaped lug 2 side are A substrate for a battery electrode plate, which is formed by bending at least one protrusion 3 extending over the imaginary boundary line a.