DE377925C - Flashlight battery - Google Patents

Description

877925

Flashlight batteries with individually replaceable element cells are known. Alan came to this measure for the reason that it was both cumbersome and awkward damaging shedding of the cells with the envelope in abandonment, as well as a Easy voltage test of the individual cells or their exchangeability at any time enable the battery casing that can be slid over the ίο cells for longer periods of use to be able to.

However, it has been shown that these known constructions in terms of installation the contact springs and insulation as well as the slide-on battery casing cause manufacturing costs that are too high, and that, furthermore, these facilities are mostly improperly handled by the layman, whereby Short-circuit occurs and the battery ao is discharged.

These evils are addressed by the subject matter of the invention eliminated by eliminating the previous fixed or sliding battery casing and starting this a contact frame is used, in which the element cells surrounded by an insulating layer are placed individually or can be removed from it. This gives the opportunity to open the individual cells at any time easy to check for tension. Furthermore, this construction has compared to the batteries with the casing significant advantage that the battery has a significantly lower weight, which is shown in Considering the high postal charges for shipping the batteries, this is a not insignificant one Saving money.

The drawing represents various embodiments of a flashlight battery according to the nature of the invention, namely show: Fig. ι and 2 a battery and the contact frame, which consists of two upper and two lower insulating plates which carry the contact springs and which are placed on the opposite Ends are connected to one another by metal strips;

Fig. 3 and 4 are horizontal sections along the lines AB and CD of Fig. 1, and

Fig. 5 is a section along line EF of Fig. 2;

Fig. 6 shows a battery with a contact frame similar to the previous one which the contact springs have a modified shape and position, while

Fig. 7 an element cell with the insulating sleeve and

Fig. 8 show the latter alone in section;

Fig. 9 is a battery with a contact frame made from a five-part insulating strip is assembled and has a special cover plate at the top;

Fig. 10 shows the contact frame in a vertical longitudinal section;

Figs. 11 and 12 show the same in horizontal sections along the lines GH and JK and

Fig. 13 in cross section along line Λ ^τ -0;

Fig. 14 illustrates, on a smaller scale, the five-part insulating strip for the Manufacture of the contact frame.

In the embodiment shown in Figs. 1 to 5, the contact frame consists of two upper insulating plates α and b

S77925

as well as two lower insulating plates c and d. The two pairs of plates a, b and c, d are connected at the ends by a metal strip e and f, the ends of which are used to supply the electric current and the part between the pairs of plates is surrounded by insulating material . In the insulating plate a three contact springs g are attached, which on

ίο the underside of the plate are designed like a bracket and are used to clamp the coal cores h with omission of the usual caps. In the insulating plate c three curved contact springs i are attached, which are against the slightly inwardly curved bottom of the zinc electrodes; (Fig. 7) so that the element cells inserted in the contact frame are held firmly in place. In order to isolate the individual zinc electrodes / from each other, they are covered with a jacket / ¹ (Fig. 8) made of celluloid, paper or other material, the upper edge of which is bent inwards over the edge of the zinc electrode / so that when the latter is put in the frame af no short circuit can occur. The left-hand contact spring g is connected to the middle contact spring i and the middle contact spring g is connected to the right-hand contact spring i by insulated conductor wires k , as can be seen in FIGS. 3 and 4. With the upper insulating plate b and g of the right side spring contact is a contact strip associated with the usual in the lamp housing the switching mechanism can be brought into engagement, while the free end Z f ¹ of the metal strip produces the, connection to the incandescent nipple.

The embodiment shown in Fig. 6 differs from the previous one only in terms of the arrangement and shape of the contact springs. The middle element cell j ¹ is mounted opposite to the two outer ones, whereby the number of contact springs is reduced. The left-hand contact spring g, which comes into contact with the carbon core h , comes into contact with its free end ² with the incandescent lamp nipple, while the two contact springs g, g ¹ connect the zinc and carbon poles. Furthermore, the lower end of the metal strip / is formed into a contact spring f ² , while its upper end f ¹ is touched by the switching mechanism on the lamp housing.

The embodiment shown in Figs. 9 to 14 relates to a battery ^ whose contact frame, for example, consists of a rectangular bent, five-part insulating strip 0 in connection with an upper cover plate b . The insulating strip 0 is provided with correspondingly deep incisions o ¹ at the bending points in order to be able to easily produce the rounding of the soap frames due to the shape of the commercially available lamp housings. The two outer ends of the insulating strip 0 form the double bottom of the frame, which was created in the two previous versions by the plates c and d , while the middle part of the strip 0, which replaces the plate α , the plate b by means of the ^ accordingly bent Ends p ¹ and p ^{2 of} the contact springs ρ holds. A contact strip p is provided between the middle and the right-hand cell p-, which is fastened at the top in the strip 0 and at the bottom in the two ends of the strip 0 lying on top of one another, while these two ends are held together on the 'opposite side' by a clamp q . Furthermore, a contact spring r is attached to the bottom part of the strip 0.

In this embodiment it is necessary to place the left-hand cell / ¹ with the carbon core h downwards and the other two cells p- with the latter facing upwards in the contact framework frame eh a, I.

It goes without saying that in addition to the contact frame frames shown in the figures and contact springs there are even more design options for these parts, and it would therefore lead too far to explain all of these possible embodiments.

The basic idea of the invention consists in a one-part or multi-part, open on both sides Frame that contains the contact springs for switching the individual visible element cells and the examination of the latter within the framework itself as well as their interchangeability Easily made possible at any time.

Claims (1)

Patent claim: Flashlight battery with individually replaceable element cells surrounded by insulating sleeves, characterized in that the element cells are visibly stored in a one-part or multi-part frame (af), (b, 0) which is open on both sides and which contains the contact frame, the element cells (/) with their ends are clamped between the contact springs and can be exchanged laterally. 1 sheet of drawings.