AU690207B2

AU690207B2 - Coaxial plug connector having a support for the inner conductor

Info

Publication number: AU690207B2
Application number: AU16138/95A
Authority: AU
Inventors: Edgard Acke; Reginald Leeman
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 1994-03-29
Filing date: 1995-03-28
Publication date: 1998-04-23
Anticipated expiration: 2015-03-28
Also published as: DE9405333U1; AU1613895A; EP0675566B1; EP0675566A2; DE59502861D1; EP0675566A3

Description

1- Coaxial plug connector having a support for the inner conductor The invention relates to a coaxial plug connector having an inner conductor which is arranged coaxially in an outer conductor sleeve and is in the form of a pin or socket, and having at least one insulating material body which is provided in the outer conductor sleeve in order to support and centre the inner conductor.

Such a coaxial plug connector is known from DE-GM 86 06 983. In the case of this plug connector, the insulating material body comprises a part which rests on the inner conductor and completely encloses the inner conductor in an annular manner, having webs which project 15 in the form of a star in the radial direction and are supported on the inner wall of the outer conductor sleeve. In this way, the inner conductor is centred and supported in the outer conductor sleeve. However, the inner conductor is not fixed in the axial direction in 20 the insulating material body.

In the case of other known coaxial plug connectors, which are used as cable plugs or as couplers to a cable connection and are formed from an outer conductor O sleeve, an inner conductor with a support and a crimping sleeve for the cable connection, the inner conductor of the connector is fastened, for example soldered, to the inner conductor of the stripped cable and is pushed, with the coaxial cable, into the complete plug. In this case, the inner conductor of the plug is pushed without any additional axial fastening into an insulating material body which is used for supporting and centring within the outer conductor sleeve.

The invention is based on the object, in the case of a coaxial plug connector of the type mentioned initially, of creating in a simple manner axial fixing of the inner conductor in the insulating material body which is used for supporting and centring in the outer I--~ii 2 conductor sleeve.

This object is achieved according to the invention, in the case of a coaxial plug connector of the type mentioned initially, in that the insulating material body has at least one transverse wall which is constructed with a through-opening for the insertion of the inner conductor, in that a plurality of radially sprung latching elements which surround the inner conductor are provided in the region of the through-opening on that side of the transverse wall which faces away from the insertion side of the inner conductor, and in that the inner conductor is constructed with a step on its outer circumference such that the latching elements snap into the step when the inner conductor is pushed through the 15 transverse wall of the insulating material body, and fix the inner conductor axially in the insulating material body.

S. In the case of such a coaxial plug connector, the insulating material body is constructed such that the inner conductor can be pushed into the insulating material body or, instead of this, the insulating material body can possibly be pushed onto the inner conductor and, in the pushed-in state, the inner conductor is not only supported and centred in the outer conductor sleeve by the insulating material body, but is also fixed in the axial direction. This axial fixing is in this case carried out without any additional assembly processes and handling operations, automatically, while the inner conductor is being pushed into the insulating material body or while the insulating material body is being pushed onto the inner conductor, the latching elements on the transverse wall of the insulating material body snapping into the step on the outer circumference of the inner conductor when the inner conductor is pushed through the transverse wall. In this way, simple axial fixing of the inner conductor in the insulating material body is ensured. Since the transverse wall of the insulating material body can be constructed to be a relatively thin wall, a supporting body which has 3 a relatively small amount of material and scarcely has any adverse effect on the homogeneity of the RF line is also obtained, with the inner conductor additionally being fixed axially.

In the case of a coaxial plug connector according to the invention, it is particularly advantageous if a circumferential flank is formed on the outer circumference of the inner conductor, on one side of the step, which flank rises against the insertion direction of the inner conductor and falls at right angles to the longitudinal direction of the inner conductor on the side facing the step. The flank, which rises against the O insertion direction of the inner conductor, allows the inner conductor to be pushed into the insulating material 15 body easily, clicking while the inner conductor is being pushed in indicating that the flank, which has an arrowshaped cross-section and is like a barb, has been overcome and thus making it possible to identify that the inner conductor has been pushed in sufficiently far and correctly, and that the latching elements have been snapped into the step in the inner conductor.

Further advantageous refinements of the subject matter of Claim 1 are specified in the other subclaims.

Exemplary embodiments of a coaxial plug connector according to the invention are described in more detail in the following text and are illustrated in the drawing, in which: Fig. 1 shows a coaxial plug connector, which is constructed as a cable plug, partially in longitudinal section, Fig. 2 shows a coaxial plug connector, which is constructed as a housing coupler with a cable connection, likewise partially in longitudinal section, Fig. 3 shows a detail III from Figs. 1 and 2, Fig. 4 shows a partially cut-away insulating material body for supporting and centring an inner conductor of the coaxial plug connector in an outer conductor sleeve, Fig. 5 shows a side view of the end of the 4 insulating material body, Fig. 6 shows an inner conductor, which is constructed as a socket, partially in longitudinal section and Fig. 7 shows an inner conductor, which is constructed as a plug, likewise partially in longitudinal section.

The coaxial plug connectors in Figures 1 and 2 in principle have the same fundamental construction and are provided, for example, for plug connectors of the order of magnitude 1.6/5.6. The cable plug 1 in Fig. 1 has an outer conductor sleeve 2 with an outer threaded sleeve 3, and an inner outer-conductor socket 4 on one end as well as an outer crimping tube 5 for the cable connection, and 15 an inner outer-conductor connecting stub 6 at the other end. Two insulating material bodies 8 and 9 are fixed between a diameter step 7 and the outer-conductor connecting stub 6, in order to support and centre the inner conductor 10 in the outer conductor sleeve 2. The inner conductor 10, which is constructed here as a plug according to Fig. 7, has a plug region 11, which is in the form of a pin, and a plug region 12, whose diameter is stepped a plurality of times and which is in the form of a socket, for the insertion of the inner conductor of a coaxial cable. As well as details which are of no more 4: interest here on the outer circumference of the inner S" conductor 10, a circumferential groove 13 is provided as a diameter step in the course of the plug region 12, which is in the form of a socket. In addition, a circumferential flank 14 is formed on the outer circumference of the inner conductor 10, on one side of the step 13, which flank 14 rises against the subsequent insertion direction, which is indicated by an arrow 15, of the inner conductor 10 and falls at right angles to the longitudinal direction of the inner conductor on the side facing the step 13. The inner conductor 10 is pushed into the two insulating material bodies 8 and 9 and is fixed in the outer conductor sleeve 2 in the axial direction by the insulating material body 9, which is I 5 constructed as a supporting disc and comprises a sleeve or socket.

The external diameter of the insulating material body 9 corresponds, in the same way as the insulating material body 8, to the internal diameter of the outer conductor sleeve 2 between the diameter step 7 and the outer-conductor connecting stub 6 and has at least one transverse wall 16, which is constructed with a throughopening 17 for the insertion of the inner conductor The transverse wall is provided in the region of one end of the insulating material body 9 here and is constructed conically, when seen in cross-section, the cone being L directed outwards. The transverse wall 16 can be constructed to be relatively thin, for example like a 15 membrane. Radially sprung latching elements 18, which are located outside the insulating material body 9, are provided here in the region of the through-opening 17 on that side of the transverse wall 16 which faces away from the insertion side of the inner conductor 10. For this purpose, the transverse wall 16 has a short tubular attachment 19, which has a plurality of slots in the axial direction of the coaxial plug connector. This attachment 19 is provided with three longitudinal slots 20, each separated by an arc of 1200, which form circular arc segments 21. These circular arc segments *are each constructed with an inner shoulder 22, which is S"directed towards the inner conductor, at their free end, so that the latching elements 18 are formed by the circular arc segments 21 and the inner shoulders 22.

When the inner conductor 10 is being inserted into the insulating material body 9, which is already located, for example, in the outer conductor sleeve 2, and when the inner conductor is being pushed through the transverse wall 16 of this insulating material body, the latching elements 18 initially spring outwards while being pushed onto the flank 14 and, after overcoming the flank, then snap inwards into the step 13, with a click. In consequence, the inner conductor 10 is axially fixed Ln the insulating material body 9, with adequate strength, cl 6 irrespective of the coaxial cable fastening. It is possibly also possible, instead of the indicated process, to push the insulating material body, in the form of a loose individual part, onto the inner conductor in the reverse manner, then to insert it into the outer conductor sleeve 2, and finally to fit the crimping tube 5 of the plug connector on the outer conductor sleeve 2.

The axial fixing of an inner conductor 10a, which is constructed according to Fig. 6 as a socket, in a coaxial plug connector, which is constructed according to Fig. 2 as a housing coupler 30 with a cable connection, is carried out in the same manner. The housing coupler 30 is likewise constructed from an outer conductor sleeve 2a with an outer threaded element 3a, an outer 15 crimping tube 5 for the cable connection and an inner :....outer-conductor connecting stub 6, and from two insulating material bodies 8 and 9 in order to support and centre the inner conductor 10a in the outer conductor sleeve 2a. The inner conductor 10a is constructed in the form of a socket at both ends here, but otherwise it is provided with a step 13 and a rising flank 14, in the same way as the inner conductor 10, with respect to axial fixing by the insulating material body 9. The insulating material bodies 8 and 9, which are also used for the cable plug 1, can be used in unchanged form as insulating material bodies for the inner conductor. conucor

Claims

1. Coaxial plug connector including an inner conductor which is arranged coaxially in an outer conductor sleeve and is in the form of a pin or socket, at least one insulating material body which is provided in the outer conductor sleeve in order to support and centre the inner conductor, the insulating material body having at least one transverse wall which is constructed with a through-opening for the insertion of the inner conductor, a plurality of radially sprung latching elements which surround the inner conductor provided in the region of the through-opening on that side of the transverse wall which faces away from the insertion side of the inner conductor, the inner conductor having a step on its outer circumference such that the latching elements snap into the step when the inner conductor is pushed through the transverse wall of the insulating material body, and fix the inner conductor axially in the insulating material body. S

2. Coaxial plug connector according to Claim 1, whereby the insulating material 15 body comprises a supporting disc.

3. Coaxial plug connector according to Claim 1, whereby the insulating material S"body comprises a sleeve or socket.

4. Coaxial plug connector according to Claim 1 or 2, whereby the external •diameter of the insulating material body is equal to the internal diameter of the outer 2o conductor sleeve.

5. Coaxial plug connector according to any one of Claims 1 to 4, whereby the transverse wall is provided in the region of one end of the insulating material body.

6. Coaxial plug connector according to any one of the preceding claims, characterized in that the transverse wall is constructed corically. S 25

7. Coaxial plug connector according to Claim 6, whereby the cone of the :transverse wall is directed outwards.

8. Coaxial plug connector according to one of the preceding claims, whereby the transverse wall is arranged and constructed such that the latching elements are located outside the insulating material body.

9. Coaxial plug connector according to any one of the preceding claims, whereby the transverse wall of the insulating material body has a tubular attachment which has a plurality of slots in the axial direction of the coaxial plug connector, wherein said tubular attachment also has circular arc segments, which are produced by the longitudinal slots, said circular arc segments being constructed as latching elements.

10. C axial plug connector according to Claim 9, whereby the circular arc segments are constructed with an inner shoulder which is directed towards the inner conductor, on each of their ends.

11. Coaxial plug connector according to Claim 9 or 10, whereby the tubular Sattachment is provided with three longitudinal slots, each separated by an arc of 120o. IN:\LIBpp]O0836:SEC L

12. Coaxial plug connector according to any one of the preceding claims, whereby the inner conductor has a circumferential groove for the latching elements, as a step on its outer circumference.

13. Coaxial plug connector according to any one of the preceding claims, whereby a circumferential flank is formed on the outer circumference of the inner conductor, on one side of the steps, which flank rises against the insertion direction of the inner conductor and falls at right angles to the longitudinal direction of the inner conductor on the side facing the step.

14. Coaxial plug connector substantially as herein described with reference to Figs. 1 to 7. DATED this Sixteenth Day of February 1998 Siemens Aktiengesellschaft Patent Attorneys for the Applicant

15 SPRUSON FERGUSON *C C :a a [N:'LIBppl00836:SEC COAXIAL PLUG CONNECTOR HAVING A SUPPORT FOR THE INNER CONDUCTOR Abstract Coaxial plug connector having a support for the inner conductor. An insulating material body is provided in order to support and centre the inner conduc- tor (10, 10a) of a coaxial plug connector 30) in the outer conductor sleeve 2a). This insulating material body has at least one transverse wall which is constructed with a through-opening (17) for the insertion 'o of the inner conductor and, in the region of the through- opening, radially sprung latching elements (18) which snap into a step (13) of the inner conductor when the inner conductor is pushed through the transverse wall In consequence, the inner conductor is fixed i5 axially in the insulating material body with s adequate strength.