DE8332780U1 - BATTERY MULTIPLE GALVANIC ELEMENTS - Google Patents

Description

. '.PATENT AGENCIES' /

• ^: ···· "* ^{; <} · * ·" luipLViNG. ALEX STENG ER Kaleer-Frledrich-Ring 70 DIPL.-ING. WOLFRAM WATZKE

D-4000 DÜSSELDORF 11 DIPL.-ING. H E I N Z J. RING EUROPEAN PATENT ATTORNEYS

Un «« rZd * Mt! 24 536 date, ιi |. November 1983

Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG, Bontkirchener Str. 1, 5790 Brilon 2

Battery made up of a number of galvanic elements

The invention relates to a battery composed of a plurality of galvanic batteries Elements with unlike end contacts, a housing cover, electrical conductor elements connecting the end contacts as well as two different battery contacts.

Such batteries are electrical for the power supply operated devices are required and should be able to be used and exchanged as a compact unit in them.

In known batteries of the type mentioned above, support elements made of a plastic injection molding compound, which are open on one side, have been used as housing envelopes to accommodate, for example, three monocells, but such plastic carriers do not provide sufficient protection for the batteries and their wiring against short circuits, contamination and falling out of the plastic carrier. so that they are only conditionally suitable for compact installation in electrically operated devices.

Furthermore, housings made of plastic injection molding compound, consisting of two half-shells for accommodating eight mignon cells, have become known, but in which the contacting of the individual cells with one another in the housing is quite complex.

Finally, from the German utility model 78 06 and the German patent application 28 08 963 a battery is the The type mentioned at the outset is known in which a plurality of galvanic elements in an electrically conductive plastic housing

Telephone (OZU) 572131 ■ Telex: 85SS429ftatvd. TelegiinmaäresK: Rlemrafent! Postal check account Cologne (BLZ 37010050) 227610-503

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are incorporated with a permanently elastic casting compound. Apart from the fact that such housing due to their 3 size unä electrical conductor properties not for installation are suitable in electrically operated devices, the manufacturing process, in particular the introduction of the permanently elastic Potting compound after wiring, extremely expensive, so that the batteries known there only for External attachment to an item of clothing or a machine, particularly suitable for underground mining are.

Proceeding from this, the invention is based on the object a battery of the type mentioned above as an easy-to-manufacture compact battery for replaceable installation in devices create, whereby all components should be housed safely and space-saving; Furthermore, it should be a simple, secure location and secure contact Can be installed in an electrically operated device.

As a technical solution, it is proposed that the galvanic elements and the conductor elements completely from one uniform, solid plastic compound are encased and battery contact elements are arranged in the outer surface of the plastic compound are.

The invention is therefore based on the basic idea of having a plurality of galvanic elements together with all of the contact elements a single plastic mass to enclose on all sides and space-filling and the battery contact elements on the surface of this To arrange plastic mass, so that a uniform compact plastic block is formed from a uniform material, the is used as a whole in the intended receptacle of an electrically operated device.

Touch in a practical embodiment of the invention the galvanic elements with each other, so that their accommodation in a confined space is permitted where the individual galvanic elements are in different levels within the Plastic compound are located and thus high stiffnesses with a minimum of space requirements with the lowest possible plastic compound required can be achieved and there is also space for a protected accommodation of the battery contact elements »

In a preferred embodiment of the invention, retaining elements are molded into the outer surface of the plastic compound , so that the finished compact battery can be easily inserted and exchanged with complementary retaining elements in the intended recess of the electrically operated device to be equipped with complementary retaining elements.

According to a further embodiment of the invention, there are recesses provided in the outer surface of the plastic compound for laterally contact-free accommodation of the battery contact elements, so that the latter are resiliently movable within these recesses or can be bent out of them.

A according to the invention arranged in the outer surface of the plastics material resilient tolerance compensating element provides ^(! Always for a tight fit of the compact battery in the recess provided an electrically powered device.

According to a further embodiment of the invention, the Battery contact elements designed in their spring properties so that they also serve as tolerance compensation, and on the resilient Tolerance compensation element can be dispensed with.

A battery according to the invention is produced in that the galvanic elements inserted into a pixel element, with one another wired and also provided with the battery contact elements. This unit is in a mold half, e.g. a Injection molding machine, inserted so that the galvanic elements

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and especially the B & tteriekontaktelemente in the gen ^ .u correct Position. A second mold half is then connected to the first to form a closed cavity and subsequently become the built-in parts are encapsulated with a plastic compound, e.g. polyurethane, encapsulated or foamed. The contact surfaces of the battery contact elements must be kept free. After demoulding the battery contact elements bent into their end position if necessary.

Preferably, three so-called baby cells are arranged in a battery, in particular primary cells from the lithium system, with which a battery capacity of around 5 Ah and 8.4 V voltage can be achieved «

A compact battery according to the invention has the advantage of being more optimal Use of space, low outer wall thickness, low tool and manufacturing costs as well as simpler, more exchangeable and safer Possibility of assembly, in particular simple handling, when inserting an electrical into the battery recess provided for this purpose operated device.

Further details, features and advantages of the subject matter of the invention will become apparent from the following description of the to-J accompanying drawing, in which a preferred Ausführungsfoir.1 a battery according to the invention has been illustrated. In the drawing show:

1 shows a battery in front view C;

Fig. 2 the same battery in section along the line II-II according to FIG. 1;

3 shows the same battery in side view A according to FIGS. 1 and 2 as well

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FIG. 4 the same battery in side view B according to FIG. 1 and 2.

Three galvanic elements 1 are in a slight angular position to one another, that is to say in different planes, in contact with one another within a uniform, solid plastic compound 2 made of polyurethane and are completely embedded on all sides. End contacts 3, 4 of the galvanic elements 1 with a different name are connected by electrical | Conductor elements 5 conductive, permanently with one another, or with two | unlike battery contacts 6,7 connected, as in the fig.;? 1 to 3 has been shown in dashed lines. The battery contacts of the same name 6, 7 can also be connected directly to the corresponding end contacts of the same name ~ 5, h without conductor elements 5. The battery contact elements 6, 7 are laterally contactless inside., Half of recesses 8 and 9 of the outer surface 10 of the plastic compound 2 and can - according to FIG. 2 - rest there resiliently or be lifted out of the recess to make contact.

A resilient tolerance compensation element 11 likewise arranged in the outer surface 10 of the plastic compound 2 consists, for example, of a self-adhesive foam strip. The spring travel of the battery contact elements within the recesses in the surface 10 is preferably approximately 2 mm. Specifically, r the battery contact elements can be designed in its spring property so J that they also serve as a tolerance compensation and can be dispensed with § the tolerance compensation element. 11

Fixing elements 12, 13 in the outer surface 10 of the plastic, material compound 2, preferably on the front sides of the battery, allow the same to be precisely inserted into a corresponding recess, not shown in the drawing, of the electrically operated device to be equipped, with a preferred one asymmetrical arrangement or design of the holding _members% wherein the battery contact elements 6,7 can be correspondingly asymmetrically arranged in the surface 10 12,13 prevents Polvertauschung when connecting the battery.

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List of reference symbols

1 galvanic elements

2 plastic compound

3 end contacts

4 end contacts

5 ladder elements

6 battery contact element

7 battery contact element

8 recess

9 recess

surface

11 Tolerance compensation element

12 pixel elements

13 pixel elements

A side view B side view C front view

Claims (6)

■ I «■ * t ·« r r r 1, Swrt NTAN WÄLTE 'DIPL.-ING, ALEX STENGER Kaiser-Friedrich-Ring 70 DIPL.-ING. WOLFRAM WATZtCE D-4000 DÜSSELDORF 11 DIPL.-ING. HEINZ J. RING UnserZeiAen: 24 536 Date: December 27, 1983 Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG revised claims 1. Battery made up of a plurality of galvanic elements (1) with end contacts (3, 4) of the same name, a casing covering, the end contacts (3, 4) connecting electrical conductor elements -, (5) and two different battery contact elements (6,7), characterized in that the galvanic elements (1) and the conductor elements (5) are completely encased by a uniform, solid plastic compound (2) and the battery contact elements in the outer Surface (10) of the plastic compound (2) are arranged. 2. Battery according to claim 1, characterized in that the galvanic elements (i) touch each other. 3. Battery according to claim 1 or 2, characterized in that Holding elements (12, 13) for fixing the battery in a device recess in the outer surface (10) of the plastic compound () (2) are molded. 4. Battery according to one of claims 1 to 3, characterized by Recesses (8, 9) in the outer surface (10) of the plastic compound (2) for laterally contactless reception of the Battery contact elements (6,7). 5. Battery according to one of claims 1 to 4, characterized by one in the outer surface (10) of the Kunststoff.nasse (2) arranged spring-elastic tolerance compensation element L. (11) for backlash-free plaguing of the battery in a device acceptance. R / SCH / td • «■ III It ₁ Telephone (Olli) 57 21 31 Telex: S5 86 429 ty te f. Tflc ^ rirtimidre »» WiinpjUnt j Po «I check kon Io Cologne (BLZ 370 IMSO) JJ76 10- 503 • * I I I 6. Battery according to one of claims 1 to 5, characterized by an arrangement of the galvanic elements (1) in different levels and arrangement of the battery _{contact elements (6,7) in the galvanic elements (1) thereby formed 3} enlarged inter mediate spaces. R / SCH / td