DE8109532U1 - Connector for a coaxial cable - Google Patents

Abstract

1. Connection device for a co-axial cable with an outer casing (10), having a contractible first section (11) for fastening to the exposed shield (22) of the co-axial cable (10), a second section to accommodate an insert (17) and, on the back next to the first section (11), a further contractible section (14) which can be fastened to the outer casing of the co-axial cable (16), characterized in that in a plug-type connector, the insert (17) which is fastened to the second section (12) before the end of the cable is inserted into the connector is made of insulating material and has a spring contact device on the inside of the outer casing (10) to make contact with the cable core (20), and in that the outer casing has, on the front end, a third section (13) which projects above the insert (17) to enclose one of the parts of the connector (18, 28) which protrudes co-axially from the insert (17).

Description

The invention relates to a connector for a coaxial cable, with an outer sleeve which can be constricted first section for attachment to the exposed shield of the coaxial cable, a second section for receiving and fastening an insert part and a third section for enclosing has a plug part projecting coaxially from the insert part.

The usual connectors for coaxial cables, e.g.

10 antenna cables, consist of several screw parts that unscrewed for assembly on the coaxial cable. The rear screw part is e.g. The cable jacket is pushed and on the front screw part, the insulation is stripped and on a section

15 of its length with the shield exposed coaxial * - * kaböl ieingeöteökt / so that .the cable core in

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ginsätzteil included- are käfiftj wMhriM the Ab? Sähirmüng comes into contact with a shielding coat of the first SdhifäUbteiis. Durdh rüdkwärtiges ÄUfsdhräüfaeh the second SdhräUbteüs to the first Sdhraübteil er> follows the Festklemmühg of äteckverbitlders to the cables coat _t The assembly of such connectors is time * ¹ raübendi further disadvantage is / that occurs only insufficient clamping of to the coaxial cable through the two screw parts / so that the connector can be stripped relatively easily from the cable end. Since the connector consists of several loose parts / some of these parts can fall off or get lost during assembly *

Also known are connectors with a metallic outer sleeve / which is deformed with crimping pliers and is pressed against the exposed shield of the cable. The outer sleeve contains an insert part / of the front end of which protrudes a plug or socket, and the rear end for inserting the The core of the coaxial cable is used. In such a connector is due to the firm contact pressure between the shield and the deformed outer sleeve, a secure contact between the outer sleeve and the shield manufactured, but the strength of the mechanical connection between the outer sleeve and the coaxial cable is often insufficient. Another disadvantage is that the outer sleeve is primarily on the "shielding of the coaxial cable is attached, which in turn does not have a very high strength and a mechanical tear crack

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The task lies with the invention to create connector detf type mentioned above; the on the one hand, a safe workout between the outer hats and the cable shielding ensures j without the Kabeiabsöhirmüng mechanically in an impermissible manner claim / and on the other hand ensure a firm mechanical attachment of the outer sleeve to the coaxial cable performed

In order to achieve this object, the invention provides that the outer sleeve in its rear area an-r adjoining the first section, a collar that is enlarged in diameter compared to the first section has fourth region which can be clamped onto the outer jacket of the coaxial cable.

The substantially cylindrical outer sleeve has two stepped areas that fit onto the end of the coaxial cable be pushed on, the narrower area surrounding the shielding and the wider area surrounding the cable jacket. As a result of the gradation of the first and fourth sections, there is between the two sections a shoulder against which the front edge of the cable jacket when the coaxial cable is pushed into the connector bumps. It is ensured that the cable ^ jacket cannot be pushed into the narrower first section of the outer sleeve at all ^ After the Cable sheaths were pushed forward to the Arischlagstelle is, the »constriction of the first and fourth takes place

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Äbsöhni & bs, with the first Äbsöhnitt of the ÄÜßenhülse is pressed firmly against the shield and the ätt ^ fourth section bordering firmly on the cable jacket ^ · In the event of a tensile load on the connector, the fourth section engaging the cable sheath decreases der Aüßenhüise the main part of the traction on> so that the shielding is neither damaged nor its contact runs to the also constricted first section »

In an advantageous development of the invention, the iQ first and the fourth portion are vefformt by squeezing the formation of creases, said pinching · ^ fold of both portions - as seen in front view are offset from each other by an angle. The individual sections can be squeezed off during assembly of the connector on the coaxial cable with a conventional pinching or crimping tool, the sections being squeezed one after the other. However, it is more advantageous to use crimping or crimping pliers whose jaws have stepped areas so that both 20 sections can be deformed in a single crimping process by a single tool.

According to an advantageous development of the invention the first and fourth sections are polygonal deformed, the edges of these sections - seen in front view - offset at an angle to one another -are. Due to this polygonal deformation, the Qüetsch forces relatively evenly over the circumference of the Cable sheath and shield distributed. To carry out Squeezing pliers can be used to remove the deformation

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are> their tools or »jaws two hiriteaf have varying, jointed recesses / which a stepped polygon for joint-pressed jaws * Shaped opening result- »

in the following will be made with reference to the drawings an exemplary embodiment of the invention is explained in more detail *

It shows

Figure 1 is a longitudinal section through a Köaxiaistecker /

Figlir 1 is a side view of the stripped end 10 of a coaxial cable for attachment to the

Connector part of Figure 1,

Figure 3 shows a section along the line III-III of Figure 1,

Figure 4 shows a section along the line IV-IV of Figure 1 /

FIG. 5 shows a longitudinal section through a plug socket which is the counterpart to the plug part of Figure 1 forms,

-Figure 6-. A section along the line VIrVI of the Figure 5,

Figure 7 is a perspective view of a crimping ■ pliers for deforming the connector /

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Figure 8 shows a connector socket with the crimping pliers has been deformed according to Figure 7 and

Figure 9 shows a plug part that with the crimping pliers after. Figure 7 has been deformed.

The connector shown in Figure 1 is a plug part, i.e. a part that is connected to a connector socket cooperates or is inserted into the connector socket. The connector socket can at the end of a coaxial cable or on a housing, e.g. an amplifier, an antenna splitter or the like.

The plug part has an outer sleeve 10 which, one behind the other, has a first section 11 for receiving the shield 15 of the coaxial cable 16, a second section 12 in which the insert part 17 is attached, and a third section 13 which protrudes freely from the insert part 17 Connector pin 18 surrounds at a distance. The insert 17 consists of a plastic body with a, he axial bore in which the rear end of the connector pin 18 is attached. Terminal legs 19, which are located in the continuous axial bore of the insert part 17, protrude to the rear from the plug pin 18. The core 20 of the coaxial cable 16 stripped at its front end is inserted between the terminal legs 19 so that a secure contact between the core 20 and the plug pin 18 is welded. To get the M 17 ^: in

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to hold the outer sleeve 10, is the jacket of the Outer sleeve in the second section 12 at two opposite points 21 punctiform pressed.

The coaxial cable 16 has a shielding 22 which coaxially surrounds the cable core 20 and is made of a braid or a conductive foil. Between the cable core 20 and the shield 22 there is a (not shown) Insulation layer. The shield 22 is a cable sheath 23 made of a relatively strong plastic surround.

When the end of the coaxial cable is stripped according to FIG exposed. On an adjoining second length, the shield 22 is exposed, so that the cable core 20 protrudes in the axial direction beyond the shield 22 and the shield 22 in turn protrudes with respect to the front end of the cable jacket 23.

When the cable core 20 is sliced in, the exposed section of the shield 22 becomes the first section 11 the outer sleeve 10 is inserted.

The cylindrical section is connected to the rear end of the first section 11 via an inclined annular shoulder 24 fourth section 14 to / whose diameter is about Thickness of the cable jacket 23 is greater than that of the first section 11. When inserting the end of the Coaxial cable 16 in the outer sleeve 10 therefore pushes the

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Front edge of the cable jacket 23 against the annular shoulder 24. In this state, the cable core 20 is between the terminal legs 13 and the shield 22 in the area of the first section 11 of the outer sleeve 10. Subsequently, the areas "11 and 14 of the outer sleeve 10 are squeezed together _y so that in each of these B3rich two pinch folds 25 and 26. The pinch folds 25 and 26 in the areas 11 and 14 are, as FIGS. 3 and 4 show, offset from one another by 90 °.

FIGS. 5 and 6 show a plug socket which can be coupled to the plug part of FIG. The outer sleeve 10 'has the four different sections 11, 12, 13, 14, the two adjacent Sections 11 and 12 have the same diameter. In The mounting sleeve 28 is attached to the axial bore of the insert part 17 and is exposed to the front from the insert part 17 protrudes and is arranged coaxially in the third section of the outer sleeve 10 '. The version 28 is used for receiving the connector pin 18 from FIG. 1, while the third section 13 of the connector part from FIG. 1 fits into the third section 13 of the plug part of FIG. To increase the clamping effect can the third section 13 contain an inserted annular spring part.

The coaxial cable 16 is also stripped in the device according to FIG. 5 in the manner shown in FIG. 2 / so that the cable shell 20 is exposed in a first section / the insulation 22 ^; The cable sheath 23 encloses the part of the coaxial cable.

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In the embodiment of Figure 5, the Ab-? Sections 11 and 14 of the outer sleeve 10 'after the insertion? · set the end of the coaxial cable deformed polygonally as shown in FIG. The type of deformation of the metal outer sleeve depends on the type of deform tool used. A hexagonal deformation is particularly useful, as shown in FIG. Here are cue edges of the two hexagons, which are from the sections 11 and are formed, offset from one another, so that the hexagons are arranged "on gaps".

The crimping pliers 30 shown in Figure 7 is used for the simultaneous deformation of the sections 11 and 14. Die Jaws 31 and 32 of the crimping pliers 30 are trapezoidal Wells 33, which are in the closed state of the

Add jaws 31, 32 to a hexagonal shape. Longitudinal the troughs 33 are divided into two sections 34. 35, which have different depths and are through a shoulder 36 are separated from each other. When using the crimping pliers shown in Figure 7 for The outer sleeves 10 'and 10 shown in FIGS. 8 and 9 are deformed by the two rear sleeves Sections 11 and 14 of the outer sleeves 10 and 10 'from an originally round shape to a now six-

Squeezed 2 ~ angular cross-sectional shape, whereby the wall of the metal sleeve in the ÄbttcLnitt 11 in firm contact with the shield and in the section 14 in firm contact with the jacket of the coaxial cable 16 comes.

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Claims (3)

EXPECTATIONS 1. Connector for a coaxial cable, with an outer sleeve which has a constrictable first section for fastening to the exposed shielding of the coaxial cable, a second section for receiving and fastening an insert part and a third section for enclosing a connector part projecting coaxially from the insert part, characterized in that the rear area of the outer sleeve (10, 10 ¹ ) adjoins the first section (11) and has a fourth area (14) which is larger in diameter than the first section (11) and which can be constricted and which is located on the outer jacket (23 ) of the coaxial cable s (16) can be clamped. 2. Connector according to claim 1, characterized ί draws the first and fourth sections ι (11,14) by squeezing with the formation of squeezing fold (25,26) or pinch edges are deformed, whereby j this - seen from the front - at an angle to (are offset from one another. 3. Connector according to claim 1 or 2, characterized in that the first and the fourth Section (11,14) are polygonally deformed, with the edges of these sections - seen in front view - are offset from one another by an angle. It Il III 1 II ' I 41 II ti suffered t I It IIII Il II ₁ I. \, ',! l' ll 'f.' II. ' ¹ Il 'Wed *