DE2158414A1 - SELF-SUPPORTING HOUSING FOR ACCUMULATORS - Google Patents

Description

Registration number. 6FP 199-DT 6233 Kelkheim, November 22nd, 1971

6P-Fri / Mar

21584H

VARTA AKTIENGESELLSCHAFT, 6 Frankfurt / Main

Self-supporting housing for accumulators

The invention relates to a self-supporting housing for accumulators, especially for accumulators with containers made of blown plastic.

To get the voltages or capacities required for the various To have areas of application available, accumulators must often be combined to form larger associations. With starter batteries, this happens, for example, by placing several cells together in a battery box. Used in this you either have single housings inserted into the battery boxes or the production of the individual housings is avoided by using multiple boxes made of acid-proof material, whose compartments are used to accommodate the individual cells and whose partition walls seal the cells against one another.

The listed possibilities for the composition of the individual elements have many disadvantages. The manufacture of the battery boxes requires relatively expensive equipment, the boxes take up space and reduce that for the items Available usable space. A preformed box does not allow the battery unit to be enlarged. The boxes must therefore can be manufactured in different sizes as required, which increases the costs considerably.

In order to eliminate these disadvantages, individual accumulators are strung together and connected to one another. The main problem is in doing so, the accumulator housing in a simple and rati

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onelle way of assembling non-shifting.

There are already devices for clamping battery housings known in which the housings are held together by brackets engaging in grooves. These grooves are on each two opposite outer sides of the battery housing and may have a slope, see above that a self-locking connection is created, which can be established or released by lightly tapping the bracket.

There are also devices for attaching accumulator cells known, in which the battery housing on one side with ribs with dovetail-shaped cross-sections and on de; r opposite Side have grooves with corresponding cross-sections. To attach two battery housings, the Ribs of a battery housing inserted into the corresponding grooves of the other.

These designs all have the disadvantage that the individual Accumulator housings for inclusion in a cell group require a different construction than for individual use. This requires higher manufacturing costs. Also, not very many cases can be strung together, as the Ribs or clamps can no longer withstand the weight of such a cell structure.

Also the use of single cells with electrically conductive cell housings is not possible.

Battery containers are also used as cell carriers made of wood with insulators made of hard rubber and / or plastic. This type is advantageous with variable carrier length and width for accumulators of different types and capacities. These containers however, must always be produced for the respective number and dimensions of the individual cells.

In the case of large production batches, based on certain uniform

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Cell types can also be advantageously molded battery containers Manufacture from plastic. Because of the relatively expensive injection molding tools, however, there is a slight possibility of variation not possible in the length of the container.

The object is to develop a device which avoids the above disadvantages and allows any number Accumulators cannot be shifted against each other to form a larger - ^ - Combine unit without a special structural design of the battery housing is required.

This object is achieved according to the invention in that the housing has two half-shells open on one side, that optionally U-shaped intermediate pieces are arranged between these half-shells and that the half-shells and the intermediate pieces are joined together by tensioning devices to form a solid association.

The more detailed structure of the self-supporting housing according to the invention is shown in more detail below with reference to FIGS.

Figures 1 and 2 show embodiments in perspective of the housing according to the invention for two or three batteries. Figure 3 shows the individual half-shells and spacers in an exploded perspective view.

In Figure 4, two self-supporting housings for six accumulators each are joined together to form a larger association.

Figures 5 to 8 show a side, front and top view and a section parallel to the bottom of an arrangement according to the invention according to FIG. 4. The half-shells 1 and the intermediate pieces 2, which are made of foamed plastic, preferably of polyurethane, have thickenings 3 for guiding clamping means. These clamping means are preferably designed as steel bolts 4 with threads on at least one end. Each clamping device is

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but also tensioning straps in question, in this case the guide means are to be interpreted accordingly. Two of these self-supporting housings are connected to one another via connecting pieces 6 *. According to the invention such a dressing can also be made, in- * the half-shells 1 and intermediate pieces 2 with intermediate walls running parallel to the outer walls 11, 21 are used.

The half-shells 1 and intermediate pieces 2 can have smooth, abutting edges with seals placed in between, but they can also, as shown in FIG. 8, indentations and engaging therein Have protrusions. This creates a vessel that is tight to the outside.

If several housings according to the invention are put together to form a larger association, it is advantageous to combine the individual housings to be fixed in a common floor box. For this purpose, 1 projections are located near the bottom on the end faces of the half-shells 5 provided. The projections on the longitudinal sides of the half-shells 1 and intermediate pieces 2 can also be used for fastening.

The widths of the half-shells and spacers are designed so that that they are assembled into a housing according to the invention according to the respective number and size of accumulators can be. The housings of the individual accumulators do not need to have any special construction. Preferably be Batteries with housings made of blown plastic, for example Polyethylene, used. As for an association of any size, a corresponding number of only three different individual parts is required, only three tools are required for production.

- patent claims -

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Claims (6)

Registration number. 6FP 199-DT 6233 Kelkheim, den 6P-Fri / Mar 21584U Claims M .; Self-supporting housing for accumulators, in particular for Batteries with containers made of blown plastic, characterized in that there are two open on one side Half-shells (1) has that, if necessary, U-shaped spacers (2) are arranged between these half-shells (1) are and that the half-shells (1) and the intermediate pieces (2) are joined together by clamping means to form a solid association are. 2. Self-supporting housing for accumulators according to claim 1, characterized in that the half-shells (1) and the Intermediate pieces (2) made of foamed plastic, for example polyurethane. 3. Self-supporting housing for accumulators according to claims 1 and 2, characterized in that the half-shells (1) and the intermediate pieces (2) have intermediate walls running parallel to the outer walls (11, 21). 4. Self-supporting housing for accumulators according to the claims 1 to 3, characterized in that the half-shells (1) and the intermediate pieces (2) have thickenings (3) for guiding the clamping devices. 5. Self-supporting housing for accumulators according to claims 1 to 4, characterized in that the clamping means are threaded steel bolts (4) at least at one end. 309822/0570 - ² - 21584 U 6. Self-supporting housing for Akkxamul ators according to the claims 1 to 5, characterized in that the half-shells (1) have projections (5) on the end faces at floor level. 309822/0570 Lee r side