CN217983995U

CN217983995U - Radio frequency connector

Info

Publication number: CN217983995U
Application number: CN202222315081.7U
Authority: CN
Inventors: 沙奔; 邵晓红; 王志伟
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-06
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a shielded connector technical field's radio frequency connector aims at solving the shielding effect between the signal transmission passageway among the prior art relatively poor, signal transmission's the lower problem of stability. The plug comprises a plug and a socket matched with the plug; the plug comprises a first outer conductor, wherein a first dielectric body and a first inner conductor sleeved in the first dielectric body are arranged in the first outer conductor; the socket comprises a second outer conductor, a second dielectric body and a second inner conductor sleeved in the second dielectric body are arranged in the second outer conductor, a butt joint port is arranged at the front end of the second outer conductor, and a metal elastic element is arranged on the circumferential inner wall of the butt joint port; the invention is suitable for the use environment with dense transmission signals, can achieve the effect of improving the stability of signal transmission, can also avoid the port of the connector from being interfered by external electromagnetic waves, and simultaneously can also prevent the electromagnetic waves generated by the port from radiating and leaking to the outside without interfering other ports.

Description

Radio frequency connector

Technical Field

The utility model relates to a shielded connector technical field specifically is to relate to a radio frequency connector.

Background

With the rapid development of the communication industry, in order to improve the space utilization rate and save the cost, the installation requirements for the integration and the densification of communication components are more and more, so that the phenomenon of electromagnetic mutual interference among signal transmission channels is inevitably caused, the problems of disorder, error identification, signal failure and the like of transmission signals are easily caused, and in practical application, the greater safety accidents are easily caused when signal identification errors or signal failure and the like occur in the signal transmission of railways, airplanes and the like.

However, in the current rf connector, the shielding effect between the signal transmission channels is poor in the signal transmission process, and the stability of signal transmission is low.

Disclosure of Invention

An object of the utility model is to overcome not enough among the prior art, provide a radio frequency connector, it is relatively poor to solve the shielding effect between the signal transmission passageway of current radio frequency connector, and signal transmission's the lower problem of stability.

In order to solve the technical problem, the utility model discloses an adopt following technical scheme to realize:

the utility model provides a radio frequency connector, include: the plug and the socket matched with the plug;

the plug comprises a first outer conductor, wherein a first dielectric body and a first inner conductor sleeved in the first dielectric body are arranged in the first outer conductor;

the socket comprises a second outer conductor, a second dielectric body and a second inner conductor sleeved in the second dielectric body are arranged in the second outer conductor, a butt joint port is arranged at the front end of the second outer conductor, and metal elastic elements are arranged on the circumferential inner wall of the butt joint port;

when the plug is in butt joint with the socket, the front end of the first outer conductor is inserted into the butt joint port and the metal elastic element generates elastic deformation so that the metal elastic element is in close contact with the outer wall of the first outer conductor, and the butt joint port, the metal elastic element and the first outer conductor are electrically connected in sequence.

Furthermore, a plug interface is arranged at the front end of the first outer conductor; when the plug is in butt joint with the socket, the second medium body is inserted into the plug interface.

Furthermore, a first connecting hole is formed in the front end of the second inner conductor; when the plug is in butt joint with the socket, the first inner conductor is inserted into the first connecting hole, so that the electrical connection with the second inner conductor is completed.

Furthermore, a plurality of first grooves which are distributed along the circumferential direction of the second inner conductor in sequence are formed in the front end of the second inner conductor, and the first grooves penetrate through the hole wall of the first connecting hole along the radial direction of the second inner conductor, so that a first elastic deformation part is formed between every two adjacent first grooves.

Further, a first reed is arranged in the butt joint port and sleeved on the second medium body; when the plug is in butt joint with the socket, the first reed is inserted into the plug interface along with the second medium body.

Furthermore, a plurality of second grooves which are sequentially distributed along the circumferential direction of the first reed are formed in the front end of the first reed, and the second grooves penetrate through the first reed along the radial direction of the second inner conductor, so that a second elastic deformation part is formed between every two adjacent first grooves.

Furthermore, a bulge is radially arranged on the outer wall of the front end of the second elastic deformation part, and a movable ring groove is formed in the circumferential outer wall of the front end of the second medium body;

when the first reed is inserted into the interface, the protrusion is extruded by the interface to drive the second elastic deformation part to generate elastic deformation, so that the first reed can be in close contact with the first outer conductor.

Furthermore, the rear end of the second outer conductor is provided with a connector, a second reed is arranged in the connector, a plurality of third grooves which are sequentially distributed along the circumferential direction of the second reed are formed in the front end of the second reed, and the third grooves penetrate through the second reed along the radial direction of the second reed, so that a third elastic deformation part is formed between every two adjacent third grooves.

Furthermore, the rear end of the second inner conductor is provided with a second connecting hole, the rear end of the second inner conductor is provided with a plurality of fourth grooves which are sequentially distributed along the circumferential direction of the second inner conductor, and the fourth grooves radially penetrate through the hole wall of the second connecting hole along the second inner conductor so that a fourth elastic deformation part is formed between every two adjacent fourth grooves.

Furthermore, the metal elastic element is an annular spring, and a limiting ring groove matched with the annular spring is formed in the circumferential inner wall of the butt joint.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model applies radial pressure to the metal elastic element when the first outer conductor is inserted into the butt joint port, so that the metal elastic element generates elastic deformation, thereby achieving stable connection between the second outer conductor and the first outer conductor and improving the stability of signal transmission; in addition, the metal elastic elements arranged in the circumferential direction can absorb and reflect electromagnetic fields to achieve the purpose of shielding, so that the port of the connector is prevented from being interfered by external electromagnetic waves, and meanwhile, the electromagnetic waves generated by the port cannot be radiated and leaked to the outside, and other ports are not interfered;

2. the utility model discloses a set up first reed not only make first outer conductor inside and outside both sides all realize being connected with second outer conductor, further improve signal transmission's effect, form dual shielding effect with metal elastic element cooperation even more, make the connector show the improvement to outside electromagnetic interference shielding nature, and reduce the leakage of the electromagnetic wave that itself produced by a wide margin, reduce the interference to other transmission channels;

3. the utility model provides the connection of the outer conductor with the radial deviation floating amount by matching the second elastic deformation part with the metal elastic element, so that the plug and the socket can still keep good signal transmission even if the plug and the socket are deviated after being butted, thereby improving the stability;

4. the utility model discloses a set up first elastic deformation portion, make first inner conductor insert behind the first connecting hole of second inner conductor front end, even if radial skew has taken place, first elastic deformation portion also will produce elastic deformation, hugs closely on first inner conductor outer wall to signal transmission's stability has been ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a cross-sectional view of a receptacle of a radio frequency connector according to an embodiment of the present invention;

FIG. 2 is a schematic view of the receptacle of the RF connector of FIG. 1;

fig. 3 is a cross-sectional view of a plug of a radio frequency connector according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a state when the plug and the socket are mated;

in the figure: 1. a plug; 11. a first outer conductor; 111. an interface; 12. a first dielectric body; 13. a first inner conductor; 2. a socket; 21. a second outer conductor; 211. a butt joint port; 212. a connection port; 22. a second dielectric body; 221. a movable ring groove; 23. a second inner conductor; 231. a first connection hole; 232. a first groove; 233. a first elastic deformation portion; 234. a second connection hole; 235. a fourth groove; 236. a fourth elastically deformable portion; 24. a metal elastic element; 25. a first reed; 251. a second groove; 252. a second elastic deformation section; 253. a protrusion; 26. a second reed; 261. a third groove; 262. and a third elastic deformation part.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The first embodiment is as follows:

as shown in fig. 1,2 and 3, the embodiment of the present invention provides a radio frequency connector, a plug 1 and a socket 2 adapted to the plug 1; the plug 1 comprises a first outer conductor 11, wherein a first dielectric body 12 and a first inner conductor 13 sleeved in the first dielectric body 12 are arranged in the first outer conductor 11; the socket 2 comprises a second outer conductor 21, a second dielectric body 22 and a second inner conductor 23 sleeved in the second dielectric body 22 are arranged in the second outer conductor 21, a butt joint port 211 is arranged at the front end of the second outer conductor 21, and a metal elastic element 24 is arranged on the circumferential inner wall of the butt joint port 211; when the plug 1 is mated with the socket 2, the front end of the first outer conductor 11 is inserted into the mating interface 211 and the metal elastic element 24 is elastically deformed, so that the metal elastic element 24 is tightly contacted with the outer wall of the first outer conductor 11, and the mating interface 211, the metal elastic element 24 and the first outer conductor 11 are electrically connected in sequence.

It should be noted that the first outer conductor 11, the second outer conductor 21, the first inner conductor 13, and the second inner conductor 23 are made of conductive metal materials, such as brass, beryllium copper, phosphor bronze, or other copper alloys, and can be adjusted accordingly according to practical applications, and are not limited in particular. The first dielectric body 12 and the second dielectric body 22 are preferably made of PTFE teflon material, and serve to provide positioning and guiding functions for the first inner conductor 13 and the second inner conductor 23, so that they are relatively fixed in the first outer conductor 11 and the second outer conductor 21, but not limited thereto, LCP liquid crystal polymer, PEEK, or other materials with similar functions may be used, and are not limited specifically here.

Specifically, when the first outer conductor 11 is inserted into the mating interface 211, it applies radial pressure to the metal elastic element 24, so that it is elastically deformed, and thus the second outer conductor 21 and the first outer conductor 11 are stably connected through the metal elastic element 24, which improves the stability of signal transmission. In addition, the metal elastic element 24 arranged circumferentially can absorb and reflect electromagnetic fields to achieve the purpose of shielding, so that external electromagnetic interference on the port of the connector is avoided, electromagnetic waves generated by the port cannot be radiated and leaked to the outside, and other ports cannot be interfered.

In this embodiment, the metal elastic element 24 is an annular spring, a limit ring groove adapted to the annular spring is arranged in the butt joint 211, and the annular spring is sleeved in the limit ring groove to complete limit fixation; but not limited thereto, the metal elastic element 24 may be a V-shaped elastic sheet or a leaf spring.

In this embodiment, as shown in fig. 4, the front end of the first outer conductor 11 is provided with a socket 111; when the plug 1 is mated with the receptacle 2, the second dielectric body 22 is inserted into the insertion port 111.

Through inserting second dielectric body 22 to interface 111 in, can carry out inside and outside dual spacing to first outer conductor 11 to this steadiness that can improve second inner conductor 23 and first inner conductor 13 and connect has promoted the signal transmission effect.

In this embodiment, the first spring plate 25 is arranged in the butt joint port 211, and the first spring plate 25 is sleeved on the second medium body 22; when the plug 1 is mated with the receptacle 2, the first spring pieces 25 are inserted into the insertion port 111 together with the second dielectric member 22.

The arrangement of the first spring 25 not only enables the inner side and the outer side of the first outer conductor 11 to be connected with the second outer conductor 21, further improves the signal transmission effect, but also forms a dual shielding effect by matching with the metal elastic element 24, so that the electromagnetic interference shielding performance of the connector to the outside is obviously improved, the leakage of electromagnetic waves generated by the connector is greatly reduced, and the interference to other transmission channels is reduced.

In this embodiment, the front end of the first spring 25 is provided with a plurality of second grooves 251 sequentially distributed along the circumferential direction of the first spring 25, and the second grooves 251 penetrate through the first spring 25 along the radial direction of the second inner conductor 23, so that a second elastic deformation portion 252 is formed between each two adjacent first grooves 232.

Specifically, the second elastic deformation portion 252 provides a radial offset floating amount for the connection of the outer conductors in cooperation with the metal elastic element 24, so that even if the plug 1 and the socket 2 are offset after being butted, good signal transmission can still be maintained between the first outer conductor 11 and the second outer conductor 21, and the stability is improved.

In this embodiment, a protrusion 253 is radially disposed on an outer wall of a front end of the second elastic deformation portion 252, and a movable ring groove 221 is disposed on an outer wall of a front end circumference of the second dielectric body 22; when the first spring 25 is inserted into the socket 111, the protrusion 253 is pressed by the socket 111 to drive the second elastic deformation portion 252 to generate elastic deformation, so that the first spring 25 can be in close contact with the first outer conductor 11.

The second elastic deformation portion 252 is bent toward the inside of the movable ring groove 221 after being elastically deformed, so as to have a certain movable space, and the protrusion 253 is preferably wedge-shaped, so that the first spring 25 can be smoothly inserted into the socket 111.

In this embodiment, a connection port 212 is disposed at the rear end of the second outer conductor 21, a second spring 26 is disposed in the connection port 212, a plurality of third grooves 261 are disposed at the front end of the second spring 26 and sequentially distributed along the circumferential direction of the second spring 26, and the third grooves 261 penetrate through the second spring 26 along the radial direction of the second spring 26, so that third elastic deformation portions 262 are formed between each two adjacent third grooves 261.

Similarly, the connection port 212 and the second spring 26 cooperate to achieve stable connection, and the third elastic deformation portion 262 enables the rear end of the socket 2 to have the effect of radial offset floating amount after connection.

Example two:

as shown in fig. 1 and 2, the present embodiment provides an rf connector, which is different from the first embodiment in that a first connection hole 231 is formed on the front end of the second inner conductor 23; when the plug 1 is mated with the socket 2, the first inner conductor 13 is inserted into the first connection hole 231, thereby completing the electrical connection with the second inner conductor 23.

And set up first connecting hole 231, can make the area of contact after second inner conductor 23 and the first inner conductor 13 are connected bigger, ensured signal transmission's stability.

In this embodiment, the front end of the second inner conductor 23 is provided with a plurality of first grooves 232 sequentially distributed along the circumference of the second inner conductor 23, and the first grooves 232 radially penetrate through the hole wall of the first connecting hole 231 along the second inner conductor 23, so that a first elastic deformation portion 233 is formed between each two adjacent first grooves 232.

Specifically, by providing the first elastic deformation portion 233, after the first inner conductor 13 is inserted into the second inner conductor 23, even if a radial deviation occurs, the first elastic deformation portion 233 will also generate elastic deformation, so as to cling to the outer wall of the first inner conductor 13, thereby ensuring the stability of signal transmission.

In this embodiment, a second connection hole 234 is formed at the rear end of the second inner conductor 23, a plurality of fourth grooves 235 are formed at the rear end of the second inner conductor 23 and sequentially distributed along the circumferential direction of the second inner conductor 23, and the fourth grooves 235 radially penetrate through the hole wall of the second connection hole 234 along the second inner conductor 23, so that a fourth elastic deformation portion 236 is formed between every two adjacent fourth grooves 235.

Specifically, by providing the fourth elastic deformation portion 236, the rear end of the second inner conductor 23 also has a radial offset floating amount after connection, and the connection effect is improved.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A radio frequency connector, comprising: the plug comprises a plug (1) and a socket (2) matched with the plug (1);

the plug (1) comprises a first outer conductor (11), wherein a first dielectric body (12) and a first inner conductor (13) sleeved in the first dielectric body (12) are arranged in the first outer conductor (11);

the socket (2) comprises a second outer conductor (21), a second dielectric body (22) and a second inner conductor (23) sleeved in the second dielectric body (22) are arranged in the second outer conductor (21), a butt joint port (211) is arranged at the front end of the second outer conductor (21), and a metal elastic element (24) is arranged on the circumferential inner wall of the butt joint port (211);

when the plug (1) is butted with the socket (2), the front end of the first outer conductor (11) is inserted into the butt joint port (211) and the metal elastic element (24) is elastically deformed, so that the metal elastic element (24) is in close contact with the outer wall of the first outer conductor (11), and the butt joint port (211), the metal elastic element (24) and the first outer conductor (11) are sequentially electrically connected.

2. The radio frequency connector according to claim 1, wherein a plug interface (111) is provided on a front end of the first outer conductor (11); when the plug (1) is butted with the socket (2), the second dielectric body (22) is inserted into the insertion port (111).

3. The radio frequency connector according to claim 1, wherein a first connection hole (231) is provided on a front end of the second inner conductor (23); when the plug (1) is butted with the socket (2), the first inner conductor (13) is inserted into the first connecting hole (231), so that the electrical connection with the second inner conductor (23) is completed.

4. The radio frequency connector according to claim 3, wherein a plurality of first grooves (232) are formed in the front end of the second inner conductor (23) and sequentially distributed along the circumferential direction of the second inner conductor (23), and the first grooves (232) penetrate through the hole wall of the first connecting hole (231) along the radial direction of the second inner conductor (23), so that a first elastic deformation portion (233) is formed between each two adjacent first grooves (232).

5. The radio frequency connector according to claim 2, wherein a first spring (25) is arranged in the butt joint port (211), and the first spring (25) is sleeved on the second dielectric body (22); when the plug (1) is butted with the socket (2), the first reed (25) is inserted into the jack (111) along with the second medium body (22).

6. The radio frequency connector according to claim 5, wherein the front end of the first spring (25) is provided with a plurality of second grooves (251) which are sequentially distributed along the circumferential direction of the first spring (25), and the second grooves (251) penetrate through the first spring (25) along the radial direction of the second inner conductor (23), so that a second elastic deformation part (252) is formed between each two adjacent first grooves (232).

7. The radio frequency connector according to claim 6, wherein a protrusion (253) is radially arranged on an outer wall of a front end of the second elastic deformation portion (252), and a movable ring groove (221) is formed on an outer wall of a circumferential direction of a front end of the second dielectric body (22);

when the first reed (25) is inserted into the socket (111), the protrusion (253) is extruded by the socket (111) to drive the second elastic deformation part (252) to generate elastic deformation, so that the first reed (25) can be in close contact with the first outer conductor (11).

8. The radio frequency connector according to claim 1, wherein a connection port (212) is formed at a rear end of the second outer conductor (21), a second spring plate (26) is arranged in the connection port (212), a plurality of third grooves (261) are formed at a front end of the second spring plate (26) and sequentially distributed along a circumferential direction of the second spring plate (26), and the third grooves (261) penetrate through the second spring plate (26) along a radial direction of the second spring plate (26), so that a third elastic deformation portion (262) is formed between every two adjacent third grooves (261).

9. The radio frequency connector according to claim 8, wherein a second connection hole (234) is formed in a rear end of the second inner conductor (23), a plurality of fourth grooves (235) are formed in the rear end of the second inner conductor (23) and sequentially distributed along a circumferential direction of the second inner conductor (23), and the fourth grooves (235) penetrate through a hole wall of the second connection hole (234) along a radial direction of the second inner conductor (23), so that a fourth elastic deformation portion (236) is formed between every two adjacent fourth grooves (235).

10. The radio frequency connector according to any one of claims 1 to 9, wherein the metal elastic element (24) is an annular spring, and a limiting ring groove adapted to the annular spring is arranged on a circumferential inner wall of the butt joint port (211).