DE1869740U - CABLE RELEASED, ESPECIALLY FOR ELECTRIC TEMPERATURE SENSORS. - Google Patents

Description

'' RA.807 559-1B.12B2

(§> mst <§>. QÜeisse 5502 Langberg (Rhid), the 26th of life 1960

O ·· ΓΛ / ΐη · Bökenbusch 41 _._ /,

) ipl.-Phys. (jBfwyen ^ MJetsse Telephone i3i9 JWsse / te

Consulting patent engineers

To the

German Patent Office

8 mianelia 2

Zweibrüekenstrasse 12

(rebrauehsrntisteranmeldting J 8469/21 c G-m - W.H. Joens & Co,

Strain relief for solder connections »

The fire concerns a Yorricntung for strain relief τοη cables that are connected to one another by soldering or to connections of electrical components

So far it was common practice to use the transition points between connecting lines and internal wiring of electrical devices, insofar as they are subject to mechanical loads, with special requirements fastening elements such as Sehellen, union nuts with conical pressure pieces or the like. To be provided. In many cases, these fastening elements do not only cause considerable damage Extension of the assembly time but also a not insignificant complication of the entire structure. In addition, you can Often times, do not attach appropriate clamping locks of the known type to smaller structural units at all.

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The usual "LotStützpunkt" also help in this regard no remedy, as they also have to be fastened separately Metal parts exist and their attachment has similar disadvantages with regard to spatial design and assembly. In addition, the usual soldering lugs and the like are subjected to bending stresses on the connecting lines and are therefore to be dimensioned particularly large in order to provide sufficient strain relief to be effective.

The firing is based on the task without additional fasteners For each individual soldering point, a transmission of tensile forces that occur to the "housing, chassis or the like" enable.

Based on the known arrangements of electrical conductor wires, which is inserted through an opening in a wall and "soldered" behind the opening to an electrical conductor The innovation is that the solder bump is attached to the Wall is applied for the purpose of strain relief. The solder bump then acts as a thief of the wire and absorbs occurring Tensile forces on.

A supply line for electrical temperature sensors can be designed in such a way that the actual sensor is connected to a strain relief part via metal parts and the transition points to the thicker supply wires absorb any tensile stresses that may arise in the strain relief part. - ^;

With the arrangement in which ähnlieh as in normal Lüsterklem- \ men to be connected to two lead wires from each other coaxially opposite sides in a bore of an insulating Verbindungsk ^ öpers are introduced, the invention can advanta- 'way in such a way be realized in that the Yerbindungs-

body has an externally accessible recess into which the lead wires protrude and that a soldering bead producing the connection of the lead wires in the recess "on both sides rests against the wall of the connecting body. As a result, tensile forces from "both directions" are released from the solder bead recorded. The arrangement according to the particular advantage that the recesses also provide a shape for the solder bump takes place, which facilitates the soldering process.

Some embodiments of the innovation are in the pictures shown and described below:

Fig. 1 shows a strain-relieved cable bushing near the innovation,

Fig. 2 shows a resistance thermometer with four connections and a cable bushing according to Fig. 1.

Figs. 3 and 4 show lead-through elements as they are e.g. can be used for connections to larger housings.

Fig. 5 and β show the application of the innovation for connecting lines to printed circuits.

The cylindrical body 1 Fig. 1 of the implementation is with four holes 2 as well as four from the outer surface of each one of the holes 2 penetrating recesses 3 provided. In the recesses 3 meet the ends of the to be connected, Ansehrußlinien introduced from both sides in the bores 2 4 or resistance wires 5 together and are through the G-round the recesses filling solder balls β connected.

In the embodiments according to Fig. 3 and 4 are to be connected Wire ends in a transverse direction to the line Recess 7, against the side walls of which see the solder bump 8 are supported in both Zugriehtungen. Training according to Fig. 4 also contains a further development of the control than here on the bottom of the recess 7 for relief of the soldering process metallizations 9 are provided.

In the embodiment according to FIGS. 5 and 6, a detail of a printed circuit is indicated schematically in cross section or in elevation. A support frame 10 of the Sehaltungsplatte 11 here forms a support surface 12, which at the erforderliehen points with holes 13 for receiving the A; ohlußdrähte _S is provided a fourteenth Solder beads 15 establish the connection with the contact tracks 16 and, according to the invention, have a tension-relieving effect by resting on the support surface 12.

The new design of a strain relief is possibly even in an interrupted line at such points it makes sense to take up any tensile stress are suitable.

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Claims (5)

A.807 559 * 18, 12, 62 protection claims 1) Cable with strain relief, especially for electrical temperature sensors, in which the electrical lead wires are inserted through an opening in a wall and behind the Opening are soldered to an electrical conductor, characterized in that the solder bead (8.15 »16) on the wall for the purpose of strain relief. 2) supply line according to claim 1, characterized in that the actual sensor with a strain relief part (1) over Metal parts (5) is connected and in the strain relief part (1) the transition points (6) to the thicker lead wires (4) absorb any tensile stresses that may arise. 3) supply line according to claim 2, characterized in that the The strain relief part (1) has an externally accessible recess (3) into which the lead wires (4, 5) protrude and that the connection of the lead wires (4,5) producing solder bump (6) in the recess (3) on both sides of the Wall of the strain relief part (1) rests. 4) supply line according to claim!, Characterized in that a Strain relief part several parallel holes for the introduction of lead wires and a slit-shaped crossing the holes Has recess (7) for receiving the solder balls (8) (Fig. 3 and 4). -6- -β- 5) supply line naen claim. 4, characterized in that the Ziag relief part at the bottom of the recess (7) örülieh. is metallized »