Radio frequency cable connector with simple structure

Abstract

The utility model relates to the technical field of radio frequency cable connectors, in particular to a radio frequency cable connector with a simple structure, which comprises a cable main body and a connector outer conductor, the cable main body comprises a cable outer conductor, a cable medium is arranged in the cable outer conductor, the connector outer conductor comprises a cable leading-in end and a cable leading-out end, and the cable leading-out end is connected with the cable main body. The cable leading-in end and the cable leading-out end are fixedly connected, the outer wall of the cable leading-out end is detachably connected with a connecting guide sleeve, the cable leading-in end and the cable leading-out end are internally provided with a cable outer conductor guide hole and a cable medium guide hole respectively, and the sizes of a cable inner conductor, a medium and an outer conductor are combined with the connector for sharing. Compared with the prior art, parts are greatly reduced, the production efficiency is improved, the processing cost is reduced, a plurality of structures are combined, only the cable medium diameter and the electrical compensation ring groove on the transmission line have step transformation, the structure is simplified, and the electrical performance consistency of the assembled connector is better.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency cable connectors, and particularly relates to a radio frequency cable connector with a concise structure. Background Technique

[0002] A radio frequency cable connector, as the name implies, is a connector used to transmit radio frequency signals. It is usually installed on a cable or device and serves as a separable element for electrical connection of a transmission line system. A radio frequency connector has the common feature of a "separable element" of a connector. At the same time, its "transmission line system" specifically refers to a microwave transmission system. Common structural forms of transmission lines include coaxial lines, and the main mode of a coaxial line is TEM wave;

[0003] For existing radio frequency cable connectors, generally one or more non-metallic media are used to support the inner conductor inside. The added support will bring about impedance changes, and one or more levels of steps need to be designed for impedance matching, which inevitably complicates the overall structure. Furthermore, the electrical performance consistency of the assembled connector will become worse, and the overall processing cost will increase. Summary of the Invention

[0004] The purpose of the utility model is to provide a radio frequency cable connector with a concise structure, which has the characteristics of greatly reducing the component composition, improving the production efficiency, reducing the processing cost, and having a concise structure.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A radio frequency cable connector with a concise structure, including a cable main body and a connector outer conductor. The cable main body includes a cable outer conductor. A cable dielectric is arranged inside the cable outer conductor, and a cable inner conductor is arranged inside the cable dielectric. The connector outer conductor includes a cable inlet end and a cable outlet end, and the cable inlet end and the cable outlet end are fixedly connected. A connecting guide sleeve is detachably connected to the outer wall of the cable outlet end. Cable outer conductor guide holes and cable dielectric guide holes are respectively arranged inside the cable inlet end and the cable outlet end, and a plurality of soldering exhaust holes are arranged on the outer wall of the cable inlet end.

[0006] To facilitate the assembly of the cable, as a preferred radio frequency cable connector with a concise structure of the utility model, the diameter of the cable dielectric matches the diameter of the cable dielectric guide hole.

[0007] To facilitate the assembly of the connecting guide sleeve, as a preferred radio frequency cable connector with a concise structure of the utility model, the inner diameter of the connecting guide sleeve is in interference fit with the outer diameter of the cable outlet end.

[0008] To allow the cable inner conductor to pass through the connecting guide sleeve, as a preferred radio frequency cable connector with a concise structure of the utility model, an electrical compensation ring groove is penetrated and arranged on one side of the connecting guide sleeve.

[0009] In order to facilitate the assembly and connection of the guide sleeve, as an optimized radio frequency cable connector with a concise structure of the present utility model, a groove with an annular structure is provided on the outer wall of the cable inlet end.

[0010] In order to make the connection guide sleeve more stable after assembly, as an optimized radio frequency cable connector with a concise structure of the present utility model, the number of the grooves is one or more, and when there are multiple grooves, they are arranged in a staggered tooth shape.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The sizes of the inner conductor, dielectric, and outer conductor of the cable are combined and shared with the connector, which greatly reduces the component composition, improves the production efficiency, reduces the processing cost, and combines multiple structures. There are only steps at the diameter of the cable dielectric and the electrical compensation ring groove on the transmission line, and the structure is concise, making the electrical performance consistency of the assembled connector better. Description of the Drawings

[0013] Figure 1 It is a sectional view of the overall assembly of the present utility model;

[0014] Figure 2 It is a schematic diagram of the sectional structure of the overall disassembly of the present utility model;

[0015] Figure 3 It is a schematic diagram of the state where the cable dielectric is not cut during the assembly of the present utility model;

[0016] Figure 4 It is a schematic diagram of the state where the cable dielectric is cut during the assembly of the present utility model;

[0017] Figure 5 It is a structural diagram of the outside of the outer conductor of the connector of the present utility model.

[0018] In the figure: 1. Cable main body; 2. Connector outer conductor; 3. Cable outer conductor; 4. Cable dielectric; 5. Cable inner conductor; 6. Cable inlet end; 7. Cable outlet end; 8. Connection guide sleeve; 9. Cable outer conductor guide hole; 10. Cable dielectric guide hole; 11. Electrical compensation ring groove; 12. Solder exhaust hole; 13. Groove. Detailed Embodiment

[0019] Please refer to Figures 1 to 5, A radio frequency cable connector with a compact structure, comprising a cable body 1 and a connector outer conductor 2. The cable body 1 includes a cable outer conductor 3. Inside the cable outer conductor 3, there is a cable dielectric 4, and inside the cable dielectric 4, there is a cable inner conductor 5. The connector outer conductor 2 includes a cable inlet end 6 and a cable outlet end 7. The cable inlet end 6 and the cable outlet end 7 are fixedly connected. The outer wall of the cable outlet end 7 is detachably connected with a connection guide sleeve 8. Inside the cable inlet end 6 and the cable outlet end 7, there are respectively provided a cable outer conductor guide hole 9 and a cable dielectric guide hole 10. On the outer wall of the cable inlet end 6, there are provided a plurality of soldering exhaust holes 12.

[0020] In this embodiment: Before assembling the cable body 1 and the connector outer conductor 2, it is necessary to pre-process the cable body 1. As Figure 3 shown, cut and chamfer the cable body 1. Specifically, cut and strip the outer wall of the cable outer conductor 3. The stripping length is the matching dimension between the cable body 1 and the connector outer conductor 2. The length between the cutting position and the cable inner conductor 5 is the protruding length of the connector inner conductor;

[0021] During assembly, as Figure 3 shown, assemble the cable body 1 and the connector outer conductor 2. The cable body 1 is introduced from the cable inlet end 6 and exported from the cable outlet end 7. The diameter of the cable dielectric 4 matches the diameter of the cable dielectric guide hole 10. Further, solder at the corresponding position to weld the cable outer conductor 3 and the connector outer conductor 2. Design the soldering exhaust holes 12 at a position close to the bottom of the welding surface, which is convenient for controlling the amount of solder and preventing the defect of incomplete soldering at the bottom. The plurality of soldering exhaust holes 12 not only play the role of exhausting gas during soldering, making the solder more fluid, but also ensure the continuity between the connector and the inner wall of the cable outer conductor 3, forming a solder column in the holes to increase the welding strength;

[0022] Subsequently, cut off the process margin of the cable dielectric 4. After cutting, the end face of the dielectric should be flush with the end face of the cable outlet end 7 of the connector. The effect after cutting is as Figure 4 shown;

[0023] Assemble the connection guide sleeve 8 on the outer wall of the cable outlet end 7. The inner diameter of the connection guide sleeve 8 and the outer diameter of the cable outlet end 7 are in interference fit. On the outer wall of the cable inlet end 6, there is a groove 13 with an annular structure, arranged in an alternating tooth shape. During press-fitting, the volume of the plastically deformed part can be accumulated in the groove 13, preventing the press-fitting from being incomplete due to chip accumulation and making the accuracy after press-fitting more stable; during soldering, the soldering exhaust holes 12 at the bottom will accumulate solder, and the groove 13 also provides an overflow space for the solder, facilitating the control of the soldering process. After assembly, as Figure 1As shown in the figure, the sizes of the inner conductor, dielectric, and outer conductor of the cable are combined and shared with the connector, which greatly reduces the component composition, improves production efficiency, and reduces processing costs. There are only step changes at the diameter of the cable dielectric 4 and the electrical compensation ring groove 11 on the transmission line. The structure is streamlined, making the electrical performance and consistency of the assembled connector better.

[0024] As a technical optimization scheme of the present utility model, the diameter of the cable dielectric 4 matches the diameter of the cable dielectric guide hole 10.

[0025] In this embodiment: The diameter of the cable dielectric 4 matches the diameter of the cable dielectric guide hole 10, which is convenient for cable assembly.

[0026] As a technical optimization scheme of the present utility model, the inner diameter of the connecting bushing 8 and the outer diameter of the cable outlet end 7 are in interference fit.

[0027] In this embodiment: The inner diameter of the connecting bushing 8 and the outer diameter of the cable outlet end 7 are in interference fit, so as to facilitate the assembly of the connecting bushing 8.

[0028] As a technical optimization scheme of the present utility model, an electrical compensation ring groove 11 is provided through one side of the connecting bushing 8.

[0029] In this embodiment: An electrical compensation ring groove 11 is provided through one side of the connecting bushing 8. After the cable is assembled, there are only step changes at the diameter of the cable dielectric 4 and the electrical compensation ring groove 11 on the transmission line. The structure is streamlined, saving costs.

[0030] As a technical optimization scheme of the present utility model, a groove 13 with an annular structure is provided on the outer wall of the cable inlet end 6.

[0031] In this embodiment: A groove 13 with an annular structure is provided on the outer wall of the cable inlet end 6, making the accuracy more stable after the connecting bushing 8 is press-fitted. The groove 13 also provides an overflow space for the solder.

[0032] As a technical optimization scheme of the present utility model, the number of the grooves 13 is one or more. When there are multiple grooves, they are arranged in a staggered tooth shape.

[0033] In this embodiment: The number of the grooves 13 is one or more. When there are multiple grooves, they are arranged in a staggered tooth shape. During press-fitting, the volume of the plastically deformed part can be accumulated in the groove 13, preventing the press-fitting from being incomplete due to chip accumulation and making the accuracy more stable after press-fitting.

[0034] Working principle: Assemble the cable body 1 with the outer conductor 2 of the connector. The cable body 1 is introduced from the cable inlet end 6 and led out from the cable outlet end 7. The diameter of the cable dielectric 4 matches the diameter of the cable dielectric guide hole 10. Further, solder is applied at the corresponding positions, and the outer conductor 3 of the cable is welded to the outer conductor 2 of the connector. The position of the solder exhaust hole 12 is designed near the bottom of the welding surface to facilitate the control of the solder amount and prevent the defect of incomplete welding at the bottom. The multiple solder exhaust holes 12 not only play the role of welding exhaust, making the solder more fluid, but also ensure the continuity between the connector and the inner wall of the outer conductor 3 of the cable, forming solder columns in the holes to increase the welding strength;

[0035] Subsequently, cut off the process allowance of the cable dielectric 4. After cutting, the end face of the dielectric should be flush with the end face of the cable outlet end 7 of the connector;

[0036] Assemble the connection guide sleeve 8 on the outer wall of the cable outlet end 7, where the inner diameter of the connection guide sleeve 8 has an interference fit with the outer diameter of the cable outlet end 7. A groove 13 with an annular structure is provided on the outer wall of the cable inlet end 6, arranged in a staggered tooth shape. During press-fitting, the volume of the plastically deformed part can be accumulated in the groove 13 to prevent incomplete press-fitting caused by chip accumulation and make the accuracy after press-fitting more stable; during soldering, the solder will accumulate at the bottom solder exhaust hole 12, and the groove 13 also provides an overflow space for the solder, facilitating the control of the welding process.

[0037] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A radio frequency cable connector with a simplified structure, comprising a cable body (1) and a connector outer conductor (2), characterized in that: The cable body (1) comprises a cable outer conductor (3), a cable medium (4) is arranged inside the cable outer conductor (3), a cable inner conductor (5) is arranged inside the cable medium (4), the connector outer conductor (2) comprises a cable lead-in end (6) and a cable lead-out end (7), the cable lead-in end (6) and the cable lead-out end (7) are fixedly connected, the outer wall of the cable lead-out end (7) is detachably connected with a connecting guide sleeve (8), the cable lead-in end (6) and the cable lead-out end (7) are respectively provided with a cable outer conductor guide hole (9) and a cable medium guide hole (10), and the outer wall of the cable lead-in end (6) is provided with a plurality of solder exhaust holes (12).

2. The radio frequency cable connector with a simplified structure according to claim 1, characterized in that: The diameter of the cable medium (4) matches the diameter of the cable medium guide hole (10).

3. The simplified radio frequency cable connector according to claim 1, characterized in that: The inner diameter of the connecting guide sleeve (8) and the outer diameter of the cable lead-out end (7) are interference fit.

4. The simplified radio frequency cable connector according to claim 1, characterized in that: An electrical compensation ring groove (11) is formed through one side of the connecting guide sleeve (8).

5. The simplified radio frequency cable connector according to claim 1, characterized in that: The outer wall of the cable lead-in end (6) is provided with a groove (13) of an annular structure.

6. The simplified radio frequency cable connector according to claim 5, characterized in that: The number of the grooves (13) is one or more, and when there are a plurality of grooves (13), they are arranged in a staggered tooth shape.

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