HK1099967B - Coaxial plug-in connector - Google Patents

Description

Coaxial plug connector

Technical Field

The invention relates to a coaxial plug connector, in particular an N-type coaxial plug connector, having a coaxial plug and a housing connection, wherein the housing connection has a cylindrical housing forming an outer conductor, which has a coaxial cable-side end and a plug-in side end.

Background

The coaxial plug connector comprises a coaxial plug and a coaxial housing coupling which are plugged together and connected to one another so as to form a coaxial plug contact. For the connection of a plug and a socket on a so-called N-type coaxial plug connector, the socket has a thread on its outer circumference. The plug is provided with a locking sleeve which also has a thread on its inner circumference. In order to connect the N-plug and the N-socket, the two are plugged together, and the locking sleeve of the N-plug is screwed with its internal thread onto the external thread of the N-socket. Such a connection of N-type coaxial plug connectors is known for a long time, which makes it possible to achieve a good and safe HF contact (high-frequency contact) between plug and socket. However, the following disadvantages are often found: in order to connect the plug and the socket, the screwing action must be performed manually and with considerable effort. For example, in the case of a use in which a plurality of coaxial plug and socket connections must be made, the manual operation is cumbersome and the time consumption is greatly increased.

Disclosure of Invention

The purpose of the invention is: a housing connection and a coaxial plug-in connection are simplified with respect to their opening and closing function, wherein the functional reliability and the transmission of HF signals are still to be maintained.

To this end, the invention provides a coaxial plug connector with a coaxial plug and a housing coupling, wherein the housing coupling has a cylindrical housing forming an outer conductor, which has a coaxial-cable-side end and an insertion-side end; wherein, a groove which is annularly surrounded is designed on the inner wall of the housing at the end adjacent to the insertion side, and the groove forms a locking edge; wherein the coaxial plug includes a cylindrical outer conductor housing portion forming an outer conductor, the outer conductor housing portion having an insertion-side end portion and a coaxial-cable-side end portion, characterized in that: the coaxial plug has a locking sleeve surrounding the outer conductor housing portion, the locking sleeve being axially movable relative to the outer conductor housing portion; the coaxial plug has a spring which is supported with its one end on the outer conductor housing part and with its other end on the locking sleeve, so that the locking sleeve is biased in the direction of the coaxial-cable-side end of the outer conductor housing part; the locking sleeve is provided with an axial slot at the insertion-side end thereof, forming elastic locking tongues, wherein the locking tongues each have a radially outwardly projecting locking edge at the insertion-side end thereof for engaging into the locking edge of the groove of the housing coupling; and the coaxial plug has a unlocking sleeve which surrounds the locking sleeve and can be moved axially relative to the locking sleeve, wherein the locking sleeve has a radially outwardly projecting ramp which rises in the direction of the end on the coaxial cable side and cooperates with a correspondingly chamfered groove on the inner side of the unlocking sleeve, so that a movement of the unlocking sleeve in the direction of the end on the coaxial cable side relative to the locking sleeve causes the locking tongues of the locking sleeve to bend radially inwards.

According to the invention, a housing coupling of the above-mentioned type is specified as follows: an annular groove is formed on the inner wall of the end of the housing adjacent to the insertion side.

The advantages are that: a coaxial plug can be selectively fixed to the housing coupling and can be fixed by a resilient locking member which can be fitted in a groove of the housing.

According to a preferred embodiment, an insertion-side end of the groove, which forms the locking edge, is at a distance of 2.8mm to 3.0mm, in particular 2.9mm, from the insertion-side end of the housing coupling.

Advantageously, the outer shell has a thread on its outer circumference for engagement with an internal thread of a locking sleeve of a conventional coaxial plug. In this way, the housing coupling can optionally also be connected to a conventional, standard coaxial plug with a screw lock.

According to the invention, a coaxial plug connector of the type described above is specified as follows: the housing coupling is designed as described above.

The advantages are that: the coaxial plug-in can be closed and released again simply, quickly and safely without the need for operating the screw connection.

According to the invention, the coaxial plug comprises a cylindrical outer conductor housing part which forms the outer conductor and which has an insertion-side end and a coaxial-cable-side end, wherein a locking sleeve is provided which surrounds the outer conductor housing part and can be moved axially relative to the outer conductor housing part. A spring is provided which is supported with its one end on the outer conductor housing part and with its other end on the locking sleeve, so that the locking sleeve is biased in the direction of the coaxial-cable-side end of said outer conductor housing part. The locking sleeve is provided with an axial slot at its insertion-side end, forming elastic locking tongues, wherein the locking tongues each have a radially outwardly projecting locking edge at their insertion-side end for snapping into a locking edge of a groove of the housing coupling. Furthermore, a locking sleeve is provided, which surrounds the locking sleeve and is axially displaceable relative to the locking sleeve, wherein the locking sleeve has a ramp surface which projects radially outward and rises in the direction of the coaxial cable end and which cooperates with a correspondingly beveled groove on the inner side of the locking sleeve in such a way that a displacement of the locking sleeve relative to the locking sleeve in the direction of the coaxial cable end causes the locking tongues of the locking sleeve to bend radially inward.

Advantageously, a stop for the locking sleeve is provided at the end of the outer conductor housing part on the coaxial cable side, which stop limits the axial movement of the locking sleeve in the direction of the end of the outer conductor housing part on the coaxial cable side.

Drawings

The present invention will be described in detail below with reference to the accompanying drawings. The attached drawings show that:

fig. 1 shows a preferred embodiment of the housing coupling according to the invention in a partially sectioned side view;

FIG. 2 is a cross-sectional view of a coaxial plug mated with the housing coupler of FIG. 1;

fig. 3 is a cross-sectional view of the housing coupler of fig. 1 and the coaxial plug of fig. 2 in a plugged-together condition.

Detailed Description

Fig. 1 shows a preferred embodiment of an N-shell coupling 100 designed according to the invention for a coaxial plug connector, having a cylindrical shell 10 forming an outer conductor, which has a coaxial-cable-side end 12, a plug-in-side end 14 and an external thread 16 on its outer circumference. Further, the housing coupling 100 further includes: an inner conductor 18, an insulator 20, a weld socket 22, a hex nut 24, a fluted disc 26 and an O-ring 28.

This N-shell coupling 100 is of standard design with the following exceptions: at its insertion-side end 14, a locking edge 30 is formed on the inner periphery of the housing 10 by an annular circumferential groove 34 on the inner side of the housing 10. The groove 34 is formed on the insertion-side end portion 14 by cutting the standardized inner periphery of the housing 10. This design deviating from the standard on the inner circumference of the housing 10 at the plug-in end 14 is designed in such a way that its function is not affected at all when a conventional, lock-sleeve-equipped coaxial plug connector is plugged in, so that a standard, internally threaded N-coaxial plug with a lock sleeve can also be fastened to the housing coupling shown in fig. 1.

Furthermore, by the construction of the housing coupling 100 proposed by the present invention, it is also possible to plug in a specially designed coaxial plug of that quick-lock type. This particular coaxial plug has a locking element which engages behind the locking edge 34 and acts in cooperation with the locking edge 34 to establish a mechanically secure connection between the housing coupling and the coaxial plug connector.

A coaxial plug connector 200 of this particular design is shown, for example, in fig. 2, and comprises: a cylindrical outer conductor housing portion 36 forming an outer conductor, an inner conductor 38, an insulator portion 40, a locking sleeve 42, a release sleeve 44, and a compression ring 46. The outer conductor housing part 36 has an insertion-side end 48 and a coaxial-cable-side end 50. The locking sleeve 42 encases the outer conductor housing portion 36. A spring 52 is provided, which is supported with its one end on the outer conductor housing part 36 and with its other end on the locking sleeve 42, so that the locking sleeve 42 is biased in the direction of the coaxial-cable-side end 50 of the outer conductor housing part 36. A stop in the form of a pressure ring 46 for the locking sleeve 42 is provided at the coaxial-cable-side end 50 of the outer conductor housing part 36, which stop limits the axial movement of the locking sleeve 42 in the direction of the coaxial-cable-side end 50 of the outer conductor housing part 36. The locking sleeve 42 is provided with an axial slot at its insertion-side end 48, so that a resilient locking spring 54 is formed. The locking tongues 54 each have a radially outwardly projecting locking edge 56 at their insertion-side end. The unlocking sleeve 44 surrounds the locking sleeve 42 and is axially movable relative to the locking sleeve 42. The locking sleeve 42 has a ramp 58 which projects radially outward and rises in the direction of the coaxial-cable-side end 50 and which interacts with a correspondingly beveled groove 60 on the inner side of the unlocking sleeve 44 in such a way that a displacement of the unlocking sleeve 44 relative to the locking sleeve 42 in the direction of the coaxial-cable-side end 50 enables a radially inward bending of the locking tongues 54 of the locking sleeve 42.

Fig. 3 shows the manner of action of the interlocking mechanism between the housing coupling 100 and the coaxial plug connector 200, wherein functionally identical parts are denoted by the same reference numerals as used in fig. 1 and 2, so that reference can be made to the preceding description in relation to fig. 1 and 2 for their explanation. In the inserted state, the locking spring 54 engages with the locking edge 56 behind the locking edge 34 of the groove 34. This achieves an interlocking grip between the housing coupling 100 and the coaxial plug connector 200 without a screw connection having to be produced for this purpose. Instead, only the coaxial plug connector 200 is pushed onto the housing coupling 100. By means of the ramp-shaped design of the locking edge 56, this locking edge can automatically slide past the locking edge 30, wherein the locking spring 54 is resiliently bent radially inward and engages in the groove 34. To release this mechanical locking connection again, a unlocking sleeve 44 is applied. For this purpose, the unlocking sleeve 44 is moved relative to the locking sleeve 42, i.e. relative to the outer conductor housing part 36, in the direction of the coaxial-cable-side end 50 of the coaxial plug connector 200. The chamfered groove 60 thus slides over the chamfer 58 of the locking sleeve 42, thereby bending the locking tongues 54 radially inwards. This leads to the following results: the locking edge 56 is released from engagement with the locking edge 30, so that the coaxial plug connector 200 can be pulled out of the housing coupling 100.

The coaxial plug connector 200, which is adapted to the housing coupling 100 according to the invention, is designed as follows:

the coaxial plug 200 is used for a coaxial plug connector, in particular for an N-type coaxial plug, wherein the coaxial plug connector 200 comprises a cylindrical outer conductor housing part 36 forming an outer conductor, which has an insertion-side end 48 and a coaxial-cable-side end 50, characterized in that: a locking sleeve 42 is provided which surrounds the outer conductor housing part 36 and is axially displaceable relative to the outer conductor housing part 36; a spring 52 is also provided, which is supported with its one end on the outer conductor housing part 36 and with its other end on the locking sleeve 42, so that the locking sleeve 42 is biased in the direction of the coaxial-cable-side end 50 of the outer conductor housing part 36; the locking sleeve 42 is provided with an axial slot at its insertion-side end 48, forming resilient locking tongues 54, wherein the locking tongues 54 each have a radially outwardly projecting locking edge 56 at their insertion-side end; a release sleeve 44 is provided, which surrounds the locking sleeve 42 and is axially displaceable relative to the locking sleeve 42, wherein the locking sleeve 42 has a ramp 58, which projects radially outward and rises in the direction of the coaxial-cable-side end 50, and which cooperates with a correspondingly beveled groove 60 on the inner side of the release sleeve 44 in such a way that a displacement of the release sleeve 44 relative to the locking sleeve 42 in the direction of the coaxial-cable-side end 50 causes the locking tongues 54 of the locking sleeve 42 to bend radially inward.

The coaxial plug connector 200 as described in the preceding paragraph, characterized in that: a stop 46 for the locking sleeve 42 is formed on the coaxial-cable-side end 50 of the outer conductor housing part 36, which stop limits the axial displacement of the locking sleeve 42 in the direction of the coaxial-cable-side end 50 of the outer conductor housing part 36.

Claims (5)

1. Coaxial plug connectors (100, 200) having a coaxial plug (200) and a housing coupling (100), wherein the housing coupling (100) has a cylindrical housing (10) forming an outer conductor, which has a coaxial-cable-side end (12) and a plug-in-side end (14); wherein, a circumferential groove (34) is formed on the inner wall of the housing (10) adjacent to the insertion end (14), said groove forming a locking edge (30); wherein the coaxial plug (200) comprises a cylindrical outer conductor housing part (36) forming the outer conductor, which has an insertion-side end (48) and a coaxial-cable-side end (50),

the method is characterized in that:

the coaxial plug (200) has a locking sleeve (42) which surrounds the outer conductor housing part (36) and can be moved axially relative to the outer conductor housing part (36);

the coaxial plug has a spring (52) which is supported with one end on the outer conductor housing part (36) and with its other end on the locking sleeve (42) in such a way that the locking sleeve (42) is biased in the direction of the coaxial-cable-side end (50) of the outer conductor housing part (36);

the locking sleeve (42) is provided with an axial slot at its insertion-side end (48) in order to form elastic locking tongues (54), wherein the locking tongues (54) each have a radially outwardly projecting locking edge (56) at their insertion-side end for engaging into the locking edge (30) of the groove (34) of the housing coupling (100); and

the coaxial connector has a unlocking sleeve (44) which surrounds the locking sleeve (42) and can be moved axially relative to the locking sleeve (42), wherein the locking sleeve (42) has a radially outwardly projecting ramp (58) which rises in the direction of the coaxial-cable-side end (50) and interacts with a correspondingly chamfered groove (60) on the inner side of the unlocking sleeve (44) in such a way that a movement of the unlocking sleeve (44) relative to the locking sleeve (42) in the direction of the coaxial-cable-side end (50) causes the locking tongues (54) of the locking sleeve (42) to bend radially inward.

2. The coaxial plug connector (100, 200) according to claim 1, wherein: one insertion-side end of the groove (34) forming the locking edge (30) is at a distance of 2.8mm to 3.0mm from the insertion-side end (14) of the housing coupling (100).

3. The coaxial plug connector (100, 200) according to claim 2, wherein: one insertion-side end of the groove (34) forming the locking edge (30) is at a distance of 2.9mm from the insertion-side end (14) of the housing coupling (100).

4. Coaxial plug connector (100, 200) according to one of claims 1 to 3, characterized in that: the housing (10) is provided with a thread (16) on its outer circumference for engagement with an internal thread of a stop sleeve of a conventional coaxial plug.

5. The coaxial plug connector (100, 200) according to claim 1, wherein: the coaxial plug connector is an N-type coaxial plug connector.