LU85415A1 - COAXIAL CABLE PLUG - Google Patents

Description

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The invention relates to coaxial cable plugs, in particular for airfield lighting cables, from a plug or mating connector sheath into which a cable with a pressed-on contact pin or a pressed-on contact sleeve is inserted.

The area of application is the connection of coaxial cables and especially of airfield lighting cables with or without shielding.

In known cable connectors, the assembled cable with pressed-on contact pin or pressed-on contact sleeve is usually wrapped with a rubber-like plastic made of sulfonated polyethylene (Kypalon; trademark from Du Pont), inserted into a plug or mating connector shape and usually at a temperature of 130 ° C Vulcanized for 10 minutes. This system applies to cables with or without shielding. Only cables insulated with butyl neoprene rubber can be assembled using this method. Vulcanization can only take place in the factory on fixed cable lengths.

According to another process, the ready-made

Cable with pressed contact pin or pressed contact.) Sleeve a plug or mating plug made of HypalonVi 'pushed on with the help of silicone grease. The inner diameter of the cable receptacle is slightly smaller than that of the. Cable. So the connector or mating connector exercises on the

Cables a pressure that ensures a permanent seal that increases the effect of the silicone grease. In this method, however, a differently dimensioned connector or mating connector must be used for spring cable type, which can only be used for cables without shielding.

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The invention has for its object to eliminate the disadvantages of the known cable connector and to allow simple and quick assembly of the coaxial cable connector in particular on the construction site.

To solve this problem, the coaxial cable connector is characterized in that a potting cavity is formed in the rear part of the connector or mating connector sheath, into which the assembled cable with a pressed-on contact pin or a pressed-on contact sleeve is inserted.

Advantageous developments of the cable connector according to the invention are specified in the subclaims.

The invention is explained below with reference to the drawing. Show it·.

1 shows a longitudinal section through a coaxial connector according to the invention with a contact pin.

FIG. 2 shows a longitudinal section through the counterpart according to the invention of the coaxial connector from FIG. 1 with a contact sleeve;

Fig. 3 shows the connection of the cable shield with an earth conductor.

The insulating outer jacket of the cable is designated by the reference number 1 in all figures. This is followed by the cable shield 2, which consists, for example, of copper or brass tape and which is connected to the earth conductor 10 in the manner shown in FIG. 3 by pressing on a longitudinally slotted sleeve 12. If the cable shield 2 consists of copper wire or a copper wire braid or a copper wire spinning, then the connection to the earth conductor 10 is made by a closed sleeve 12.

The cable shield 2 is separated from the conductor 4 by an insulating jacket 3. Either a contact pin 5 (FIG. 1) or a contact sleeve 6 (FIG. 2) is pressed onto the conductor 4.

The assembled cable consisting of parts 1 to 5, 10 and 12 (FIG. 1) or 1 to 4, 6, 10 and 12 (FIG. 2) is inserted into the rear part of the connector sleeve 7 (FIG. 1) or the mating connector sleeve 7 (Fig. 2) inserted. The plug parts of the sleeve 7, through which the contact pin 5 or the contact sleeve 6 are pushed, are provided with a projection (FIG. 1) or a correspondingly shaped recess (FIG. 2).

In the rear part of the shell 7, a potting space 8 is formed, which is conical towards the plug-in part in order to avoid air pockets when the potting compound (usually a casting resin) is introduced. The potting space 8 is delimited at the top in the cylindrical part of the plug by an elongated filling opening 11. This enables the cast resin molding material to be poured and vented properly.

The inner surfaces of the potting space are preferably roughened, which ensures good adhesion between the cast resin and the connector shell or the mating connector shell and thus a tight connection.

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In the rear part of the sheath 7, a grommet 9 is also attached, through which the cable is guided so as to close. The grommet enables the insertion of cables with different diameters (approx. 10 to 18 mm).

The spout 9 also has a further, initially closed passage to. Piercing the earth conductor 10.

. The insulating sheaths 1 and 3 consist of insulating materials that form tight-fitting connections with the sealing compounds. For example, "the following materials are used: butyl and neoprene rubber, VPS, PVC and suiforiented polyethylene (Hypalon). When using insulating sleeves made of VPS, a tight-fitting connection between the cast resin molding material and the insulating jacket is achieved with the help of a self-welding tape the other cable sheaths ensure that the casting resin adheres perfectly to the sheaths without special precautions.

Copper or brass tape or copper wire braid or copper wire wrapping can be used as shield 3.

The cable plug according to the invention have the advantage that they can be installed quickly and easily on the construction site and are versatile in use. In particular, the cable connectors according to the invention are successfully used in wing lighting cables with or without shielding. For example, the cable connector according to the invention can be used for an airfield lighting cable with the following characteristics: cross section 6 mm 2 / AWG 3; Voltage up to 5 kV; Regulation FAA-L-323.

Claims (6)

5 1. · Coaxial cable connector, in particular for airport lighting cables, from a plug or mating connector sleeve into which a cable with a pressed-on contact pin or a pressed-on contact sleeve is inserted, characterized in that in the rear part of the connector or Mating connector sleeve (7) into which the pre-assembled cable (1, 2, 3, 4) with pressed contact pin (5) or pressed contact sleeve (6) is inserted, a potting space (8) is formed. 2. Plug according to claim 1, characterized in that the inputs of the connector or mating connector cover (7) are closed with grommets (9) and the casting chamber (8} is poured out with casting resin. 3. Plug according to claim 1 or 2, characterized in that the potting space (8) is conical towards the plug part. 4. Plug according to one of claims 1 to 3 », characterized in that the potting cavity (S) is delimited at the top in the cylindrical part of the plug by an elongated filler opening (11). 5. Plug according to one of claims 1 to 4, characterized in that the inner surfaces of the potting cavity (8) are roughened. 6. Plug according to one of claims 1 to 5, characterized in that a pressed-on longitudinally slotted sleeve (12) is provided for connection to a conductor (10) in copper or brass band shields (2). I, 6 Ψ * 7 · connector according to one of Claims 1 to 5 », characterized in that, in the case of shielding by a copper wire or by a copper wire wrapping, a pressed-on, closed sleeve is provided for connection to an I conductor (Ί0) , | ί ·· ** 6 iii jS »Ι r! f: | i i · 1 «