Butt joint structure of coaxial cable and connector

Abstract

The utility model discloses a butt joint structure of a coaxial cable and a connector, which comprises a base, a plurality of mounting cavities are arranged in the base, the inner walls of the mounting cavities are fixedly connected with a plurality of circumferentially distributed connecting pieces, and one ends, close to each other, of the plurality of connecting pieces are jointly and fixedly connected with a fixing ring; the coaxial terminal comprises a terminal grounding end and a terminal signal end, and after the coaxial terminal is installed in the installation cavity, the fixing ring isolates the terminal grounding end and the terminal signal end; the cable comprises a cable grounding end and a cable signal end; when the coaxial terminal is inserted in the cable butt joint, the isolation signal end of the fixing ring is in butt joint with the grounding end. According to the utility model, reliable signal transmission under expected electrical performance can be satisfied; meanwhile, the fixing ring isolates butt joint of the signal end and butt joint of the grounding end, a good signal shielding effect is achieved, and finally high-speed signal transmission between the coaxial cable assembly and the PCB provided with the connector is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and in particular relates to a docking structure for a coaxial cable and a connector. Background Technology

[0002] In modern communication technology, electronic equipment, and industrial automation, coaxial cables serve as an important signal transmission medium, widely used for signal transmission between various devices. To ensure effective connection between coaxial cables and equipment, connectors are typically used to reliably interface the coaxial cables with other devices or circuit boards.

[0003] In high-frequency transmission, with increasingly higher signal frequencies and contact densities, the mating section between the coaxial cable and the connector can become a source or channel of electromagnetic interference, thus affecting signal quality and even causing mutual interference between devices. To address these issues, we propose a mating structure for the coaxial cable and connector. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] A mating structure for a coaxial cable and a connector, comprising:

[0006] The base has multiple mounting cavities, and multiple circumferentially distributed connectors are fixedly connected to the inner wall of the mounting cavities. The ends of the multiple connectors that are close to each other are fixedly connected to a fixing ring.

[0007] The coaxial terminal includes a ground terminal and a signal terminal, and after the coaxial terminal is installed into the mounting cavity, the fixing ring isolates the ground terminal and the signal terminal.

[0008] Cables, which include the cable grounding terminal and the cable signal terminal;

[0009] When the cable is connected to the coaxial terminal, the signal end of the cable and the signal end of the terminal are connected to each other to complete the signal end connection, and the ground end of the cable and the ground end of the terminal are connected to each other to complete the ground end connection. The fixing ring isolates the signal end connection and the ground end connection.

[0010] As a preferred embodiment of the above technical solution, the cable further includes an isolation ring pad located between the cable grounding end and the cable signal end. The outer diameter of the isolation ring pad is adapted to the inner diameter of the cable grounding end, and the inner diameter of the isolation ring pad is adapted to the outer diameter of the cable signal end.

[0011] As a preferred embodiment of the above technical solution, the annular inner wall of the mounting cavity is provided with a plurality of circumferentially distributed grooves, the grooves and the connectors are staggered and adapted to the terminal grounding end and the grooves.

[0012] As a preferred embodiment of the above technical solution, the outer diameter of the fixing ring is adapted to the inner diameter of the cable grounding end, and the inner diameter of the mounting cavity is adapted to the outer diameter of the cable grounding end.

[0013] As a preferred embodiment of the above technical solution, a guide hole is provided on the inner wall of the fixed cavity near the cable end, and the inner diameter of the guide hole forms a guide cavity that is compatible with the signal end of the cable.

[0014] The beneficial effects of this utility model are as follows:

[0015] When the cable assembly is inserted into the connector, the inner surface of the cable grounding terminal contacts and slides against the retaining ring, guiding the connection. After the cable assembly and connector are connected, the upper signal contact piece of the terminal signal end elastically deforms, and the signal contact surface of the signal contact piece connects with the outer conductive surface of the cable signal end to achieve signal terminal connection; similarly, the upper grounding contact piece of the terminal grounding end elastically deforms, and the grounding contact surface of the grounding contact piece connects with the outer surface of the cable grounding end to achieve grounding terminal connection. The separate connection of the signal terminal and the grounding terminal in both types of terminals can meet the reliable signal transmission under the desired electrical performance; at the same time, the retaining ring isolates the signal terminal connection and the grounding terminal connection, providing good signal shielding, ultimately realizing high-speed signal transmission between the coaxial cable assembly and the PCB board with the connector installed. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the docking structure of a coaxial cable and connector in one embodiment.

[0017] Figure 2 The diagram shown is a front view of the base in a coaxial cable and connector docking structure according to an embodiment.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the base in a coaxial cable and connector docking structure according to an embodiment;

[0019] Figure 4 The diagram shown is a cross-sectional view of the docking structure of a coaxial cable and connector in the embodiment, in the state before docking.

[0020] Figure 5 The diagram shown is a cross-sectional view of the mating structure of a coaxial cable and a connector in an embodiment, in the case of a properly mated state.

[0021] 1. Base; 11. Connector; 12. Retaining ring; 13. Groove; 121. Fixing cavity; 122. Guide hole; 2. Cable; 21. Cable grounding end; 22. Cable signal end; 211. Limiting groove; 212. Outer surface; 213. Inner surface; 221. Outer guide surface; 3. Coaxial terminal; 31. Terminal grounding end; 32. Terminal signal end; 311. Grounding contact piece; 321. Signal contact piece; 3111. Grounding contact surface; 3211. Signal contact surface. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Example

[0024] like Figure 1 As shown, a docking structure for a coaxial cable and a connector is provided. The docking structure of the present invention includes a base 1, a cable 2, and a coaxial terminal 3. The cable 2 is a component at the end of the cable assembly, and the base 1 and the coaxial terminal 3 are components at the end of the connector.

[0025] like Figure 2 , Figure 3 and Figure 4 As shown, the base 1 has multiple mounting cavities, and multiple circumferentially distributed connectors 11 are fixedly connected to the inner wall of the mounting cavity. The ends of the multiple connectors 11 that are close to each other are fixedly connected to a fixing ring 12. The coaxial terminal 3 includes a terminal grounding terminal 31 and a terminal signal terminal 32, and the cable 2 includes a cable grounding terminal 21 and a cable signal terminal 22.

[0026] According to the configuration requirements of the coaxial terminal 3, the base 1 is provided with multiple matching mounting cavities; the fixing ring 12 has the function of isolating the terminal signal end 32 of the coaxial terminal 3 from the terminal grounding end 31; the cable grounding end 21 is provided with multiple sets of limiting grooves 211.

[0027] like Figure 4 and Figure 5As shown, when the cable assembly is inserted into the connector, the inner surface 213 of the cable grounding terminal 21 contacts and slides with the retaining ring 12, achieving a guiding effect for docking. After the cable assembly and connector are docked, the upper signal contact piece 321 of the terminal signal terminal 32 elastically deforms, and the signal contact surface 3211 of the signal contact piece 321 connects with the outer guide surface 221 of the cable signal terminal 22 to achieve signal terminal docking; after the upper grounding contact piece 311 of the terminal grounding terminal 31 elastically deforms, the grounding contact surface 3111 of the grounding contact piece 311 connects with the outer surface 212 of the cable grounding terminal 21 to achieve grounding terminal docking; the separate docking of the signal terminal and the grounding terminal in the two types of terminals can meet the reliable signal transmission under the desired electrical performance; at the same time, the retaining ring 12 isolates the signal terminal docking and the grounding terminal docking, playing a good signal shielding role, and finally realizing high-speed signal transmission between the coaxial cable assembly and the PCB board on which the connector is installed.

[0028] like Figure 4 As shown, cable 2 also includes an isolation ring gasket, which is located between the cable grounding end 21 and the cable signal end 22. The outer diameter of the isolation ring gasket matches the inner diameter of the cable grounding end 21, and the inner diameter of the isolation ring gasket matches the outer diameter of the cable signal end 22. By setting the isolation ring gasket, not only can the signals of the cable grounding end 21 and the cable signal end 22 be shielded at the splicing end, but it also plays a good role in limiting and fixing the cable signal end 22 in the inner cavity of the cable grounding end 21, further ensuring the stability of subsequent connection.

[0029] The annular inner wall of the mounting cavity has multiple circumferentially distributed grooves 13. The grooves 13 and the connector 11 are staggered and adapted to the terminal grounding end 31 and the grooves 13. By setting the grooves 13, the terminal grounding end 31 in the coaxial terminal 3 can be easily locked, thereby assisting in the installation and positioning of the coaxial terminal 3.

[0030] The outer diameter of the retaining ring 12 matches the inner diameter of the cable grounding terminal 21, and the inner diameter of the mounting cavity matches the outer diameter of the cable grounding terminal 21. When the cable 2 and the coaxial terminal 3 are inserted and connected, the cable grounding terminal 21 is inserted between the outer wall of the retaining ring 12 and the inner wall of the mounting cavity, achieving good guidance and stable installation.

[0031] A guide hole 122 is provided on the inner wall of the fixed cavity 121 near the end of the cable 2. The inner diameter of the guide hole 122 forms a guide cavity and is adapted to the cable signal end 22. The guide hole 122 is provided to assist in pre-guiding the connection between the cable signal end 22 and the terminal signal end 32.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A mating structure for a coaxial cable and a connector, characterized in that, include: The base (1) has multiple mounting cavities, and multiple circumferentially distributed connectors (11) are fixedly connected to the inner wall of the mounting cavity. The ends of the multiple connectors (11) that are close to each other are fixedly connected to a fixing ring (12). The coaxial terminal (3) includes a terminal grounding terminal (31) and a terminal signal terminal (32). After the coaxial terminal (3) is installed in the mounting cavity, the fixing ring (12) isolates the terminal grounding terminal (31) and the terminal signal terminal (32). Cable (2), cable (2) includes a grounding terminal (21) and a signal terminal (22); When the cable (2) is connected to the coaxial terminal (3), the cable signal end (22) and the terminal signal end (32) are connected to complete the signal end connection, the cable ground end (21) and the terminal ground end (31) are connected to complete the ground end connection, and the fixing ring (12) isolates the signal end connection and the ground end connection.

2. The mating structure of a coaxial cable and connector according to claim 1, characterized in that, The cable (2) also includes an isolation ring pad, which is located between the cable grounding end (21) and the cable signal end (22). The outer diameter of the isolation ring pad is adapted to the inner diameter of the cable grounding end (21), and the inner diameter of the isolation ring pad is adapted to the outer diameter of the cable signal end (22).

3. The mating structure of a coaxial cable and connector according to claim 1, characterized in that, The annular inner wall of the mounting cavity is provided with multiple circumferentially distributed grooves (13). The grooves (13) and the connectors (11) are staggered and are adapted to the terminal grounding end (31) and the grooves (13).

4. The mating structure of a coaxial cable and connector according to claim 1, characterized in that, The outer diameter of the fixing ring (12) is adapted to the inner diameter of the cable grounding end (21), and the inner diameter of the mounting cavity is adapted to the outer diameter of the cable grounding end (21).

5. The mating structure of a coaxial cable and connector according to claim 1, characterized in that, The fixing ring (12) has a fixing cavity (121) in the middle. The inner wall of the fixing cavity (121) near the cable (2) has a guide hole (122). The inner diameter of the guide hole (122) forms a guide cavity and is adapted to the cable signal end (22).

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