FI59309B - ACKUMULATOR SPECIELLT EN FLERCELLIG BLYACKUMULATOR - Google Patents

Description

E25r * l M / 11) ANNOUNCEMENT C O 7 Π Ο jSTjf <11) UTLÄCONINGSSKMFT O? SV? C (45) PnL-iiLLi ^ y Jn> ... tiy LO jc andJl ^ T ^ (51) K ».ik? /Int.a.3 H 01 M 10/16 FINLAND —FINLAND (11) Ρκ» « Ηιώι «« - Η «· ηβ« ΛΛη | 2211/71 (22) Htk «mltpWvl - Araeknlnjidif 06.08.71 ^ '(23) Alkupllvft —GlMglMtcdaf 06.08.71 (41) Tullut | ulklMkal - Bllvlt offuntltf 09.02.72

Patent I * Rakiatari Board of Directors „...... ...,,. , _ · (44) Nlhtivikslpanon And Hearing | -

Patint · och njlltantynlun 'AmAkin utlagd och utl. * Kriftan publkarad 31.03.8l (32) (33) (31) atuolkaya — Bajlrd prtorltat 08.08.70

Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) P 2039 ^ 70.1 (71) Varta Aktiengesellschaft, Frankfurt / Main, DE; Gundelhardtstrasse 72, 6233 Kelkheim / Taunus, Federal Republic of Germany-Förbundsrepubliken Tysk-land (DE) (72) Hans-Georg Lindenberg, Hannover-Stöcken, Siegfried Prause, Berenbostel,

The present invention relates to a battery, in particular to a multicellular lead-acid battery having a flexible housing with a flexible housing and transverse baffles and ribs are formed in the partitions to secure the groups of plates.

A problem in the manufacture of batteries, especially starter batteries, is the attachment of disk groups to the group housing. Due to the necessary manufacturing tolerances, the placement of the plate groups takes place in the so-called using push separators. The fitting of the plate groups then takes place by hand, whereby the compression pressure used varies greatly depending on the worker concerned. In addition, it is possible that the insulators will tear or be damaged. In addition, the disk array is not always in the same position in each cell, but must be corrected afterwards to allow the battery cover to be replaced.

To overcome the disadvantages of this method, various methods for attaching plate groups have been proposed in the past. For example, it is known to dip the lower ends of the plates in plastic and glue them in place when placing them in the ribs of the slurry space. However, this procedure promotes the formation of sludge bridges or short circuits in the housing. It is further known to prevent the plates from oscillating in mechanical vibrations by means of wedges glued to the wide side of the cells and adapted to be pressed against the edge of the plate.

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However, all of these methods are complex and uncertain and, above all, unsuitable for the automatic assembly and manufacture of batteries.

In the transition from hard rubber or the hitherto little resilient plastic used as a block housing material to flexible plastics such as polypropylene, there have been even greater difficulties in securing sheet groups by thrust differences because block housings made of these resilient materials stretch at the top and deform.

The object of the present invention is to obviate the drawbacks of these known methods and to provide a battery in which the plate groups are automatically attached to a group housing made of flexible plastic material.

According to the invention, this is realized in such a way that the ribs for fastening the plate groups are oblique flexible ribs formed in the lower part of the group housing between the stop ribs. To illustrate the invention, an example thereof is shown in Figures 1 and 2.

Figure 1 shows a cross-section of a battery according to the invention, while Figure 2 shows it from above.

In the lower part of the cell 1 of the group housing, thin flexible, oblique spring ribs are made between the stop ribs 6 arranged in the end and partition walls 3 of the group housing.

The spring ribs 2 provided with chamfers 4 stand approximately vertically at the bottom of the group housing. In order for the spring ribs 2 to flex flexibly to the sides when the plate groups are inserted and to form a strong holder for the plate groups, the spring ribs 2 form a gentle angle 21, 22 with the end and partition walls 3 of the group housing. When the plate groups are pushed into place, the spring ribs 2 are placed in the space 7, which in each case is formed by two stop ribs 6. In order to ensure vertical installation and prevent lateral movement of the plate groups Thus, the spring ribs arranged on one end or partition wall 3 have opposite slopes and the longitudinal forces generated due to the elastic effect of the ribs 2 when the plate groups are inserted into the cell 1 are canceled.

The battery according to the invention is suitable for automatic assembly

Claims (3)

3 59309 and the disc groups remain firmly in place. At the top, the plate groups are held in place by pole bridges and connectors, while at the bottom, the plate groups are fixed in place by means of spring ribs according to the invention. Since the spring ribs 2 are arranged in the lower part of the group housing, the bottom of the group housing receives the generated stresses without the thin-walled group housing made of flexible plastic material deforming and without the welding of the housing cover becoming difficult. A battery, in particular a multi-cell lead-acid battery, the group housing of which is made of flexible plastic, such as polypropylene, with transverse baffles and ribs formed on the end and partition walls for fastening the plate groups, characterized in that the ribs for fixing the plate groups are at the bottom of the group housing oblique elastic ribs (2) formed between. Battery according to Claim 1, characterized in that the flexible ribs (2) have chamfers (4 ·). Battery according to Claims 1 and 2, characterized in that the thickness of the flexible rib (2) decreases away from the base. Battery according to one or more of the preceding claims 1 to 3, characterized in that the angles (21, 22) formed by the flexible ribs (2) in each cell with the end and cell partitions (3) always open towards the nearest side wall (8, 9). .