A high coaxiality RF connector

By combining the female connector's connecting plate with the male connector's insertion slot, along with the design of the snap-fit ​​protrusion and positioning groove, and utilizing the elasticity of the torsion spring shaft and the adjusting bushing of the disassembly component, the problem of loosening after repeated insertion and removal of traditional RF connectors is solved. This achieves a connector structure with high coaxiality, improving the stability of signal transmission and the ease of maintenance.

CN224288810UActive Publication Date: 2026-05-26ZHENJIANG SHENGCHAO ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG SHENGCHAO ELECTRONICS CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional RF connectors are prone to loosening after repeated insertion and removal, causing the coaxiality between the male and female connectors to gradually deviate from its initial precise state, affecting the consistency and reliability of signal transmission.

Method used

The design incorporates a female connector plate that engages with the male connector's insertion slot. By combining the corresponding snap-fit ​​protrusions and positioning slots, the connection is maintained securely using the elasticity of the torsion spring shaft. Furthermore, the adjustment sleeve of the disassembly component engages with the external thread, enabling precise connection and convenient disassembly of the male and female connectors.

Benefits of technology

It effectively prevents displacement or deformation of the inner and outer conductors caused by frequent plugging and unplugging, maintains stable coaxiality, ensures the consistency and reliability of signal transmission, and reduces maintenance costs and equipment downtime.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a high coaxiality radio frequency connector, including a male and a female connector. The female connector has three sets of connecting plates on its outer periphery, and the male connector has three sets of insertion slots on its outer periphery that mate with the connecting plates. A disassembly component for separating the male and female connectors is located beside the insertion slots. The female connector is inserted into the insertion slot of the male connector via the connecting plates, completing the coaxial connection between the male and female connectors. This utility model, through the cooperation between the connecting plates of the female connector and the insertion slots of the male connector, and the correspondence between the fastening protrusions and the positioning slots, makes the connection between the male and female connectors more precise, effectively preventing displacement or deformation of the inner and outer conductors caused by frequent insertion and removal, maintaining stable coaxiality, and ensuring signal transmission consistency and reliability.
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Description

Technical Field

[0001] This utility model relates to a high coaxiality radio frequency connector. Background Technology

[0002] Radio frequency (RF) connectors play a crucial role in many fields such as modern communications and electronic equipment, enabling efficient transmission of RF signals.

[0003] Traditional RF connectors often rely on simple plugging and unplugging motions to secure the connection between the male and female connectors. However, frequent plugging and unplugging of RF connectors can cause mechanical stress on the inner and outer conductors of the connector.

[0004] During insertion and removal, uneven force or incorrect insertion / removal angle may cause slight displacement or deformation of the inner and outer conductors, thereby disrupting coaxiality. This can lead to loosening after repeated insertions and removals, causing the coaxiality between the male and female connectors to gradually deviate from its initial precise state, affecting the consistency and reliability of signal transmission.

[0005] Therefore, a high coaxiality RF connector is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a high coaxiality radio frequency connector to solve the problem mentioned in the background art that traditional radio frequency connectors are prone to loosening after repeated insertion and removal, causing the coaxiality between the male and female connectors to gradually deviate from the initial precise state.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high coaxiality radio frequency connector, including a male and a female connector, wherein the female connector has three sets of connecting plates on its outer periphery, and the male connector has three sets of insertion slots on its outer periphery that mate with the connecting plates. A disassembly component for separating the male and female connectors is provided beside the insertion slots.

[0008] The female connector is inserted into the male connector's slot via a connecting plate, thus completing the coaxial connection between the male and female connectors.

[0009] Preferably, the tail end of the connecting buckle plate is connected to the female head via a torsion spring shaft, and the tail end of the connecting buckle plate is arc-shaped.

[0010] The front end of the connecting plate is provided with a fastening protrusion, and the front end of the fastening protrusion is provided in a smooth arc shape.

[0011] Preferably, the insertion groove includes a guide groove that cooperates with the connecting buckle plate, and a positioning groove that cooperates with the buckling protrusion is provided at the tail end of the guide groove.

[0012] Preferably, an adjustment groove is provided at the tail end of the insertion slot, and the adjustment groove is provided with an external thread.

[0013] Preferably, the disassembly component includes an adjusting bushing disposed in the adjusting groove. The adjusting bushing is located at the tail end of the insertion groove and is connected to three sets of abutment plates via a connecting shaft plate. The three sets of abutment plates are located at the tail end of the guide groove.

[0014] Preferably, an internal thread is provided on the inner circumferential side of the adjusting bushing, and the internal thread and the external thread are mutually engaged.

[0015] Preferably, the cross-sectional shape of the abutment plate is triangular, so that the front end of the abutment plate fits with the fastening protrusion.

[0016] Preferably, the width of the adjusting groove is greater than the width of the adjusting sleeve, so that the adjusting sleeve can move in the adjusting groove via a thread.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention achieves a more precise connection between the male and female connectors through the cooperation of the female connector's connecting plate and the male connector's insertion slot, as well as the correspondence between the fastening protrusion and the positioning slot. The connection between the two is effectively prevented from displacement or deformation of the inner and outer conductors caused by frequent plugging and unplugging through the linear guiding effect of the insertion slot, maintaining coaxiality stability and ensuring signal transmission consistency and reliability.

[0019] The guide groove design facilitates the insertion and guidance of the connector plate, making the insertion and removal operation smoother, reducing the difficulty of insertion and removal, and reducing damage to the connector caused by improper operation.

[0020] The design of the torsion spring shaft at the end of the connecting plate utilizes the elasticity of the torsion spring to ensure a tight fit between the connecting plate and the insertion slot, thereby improving the stability of the connection.

[0021] The device is designed with a disassembly mechanism. By adjusting the bushing and the external thread, rotating the bushing allows the abutment plate to press against the connecting plate, releasing the engagement between the buckle protrusion and the positioning groove. This easily separates the male and female heads, facilitating disassembly and maintenance, and reducing maintenance costs and equipment downtime.

[0022] This structure reduces coaxiality damage caused by improper insertion and removal, thereby extending the connector's lifespan, reducing replacement frequency, and lowering long-term operating costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0025] Figure 3 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the male connector structure according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the adjusting groove structure according to an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the disassembly component structure according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of the female head structure according to an embodiment of the present utility model;

[0030] Figure 8 This is a schematic diagram of the connecting buckle structure of an embodiment of the present utility model.

[0031] In the diagram: 1. Male head; 11. Insertion groove; 111. Guide groove; 112. Positioning groove; 12. Adjustment groove; 13. External thread; 2. Female head; 21. Connecting buckle plate; 22. Torsion spring shaft; 23. Snap-fit ​​protrusion; 3. Disassembly part; 31. Adjusting bushing; 32. Connecting shaft plate; 33. Abutment plate; 34. Internal thread. Detailed Implementation

[0032] To address the problem of traditional RF connectors becoming loose after repeated insertions and removals, causing the coaxiality between the male and female connectors to gradually deviate from its initial precise state, this invention provides a high coaxiality RF connector. The technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] Please see Figure 1-8 This utility model provides a high coaxiality radio frequency connector, including a male connector 1 and a female connector 2. The outer periphery of the female connector 2 is provided with three sets of connecting fasteners 21. The tail end of the connecting fastener 21 is connected to the female connector 2 through a torsion spring shaft 22, and the tail end of the connecting fastener 21 is arc-shaped. The front end of the connecting fastener 21 is provided with a fastening protrusion 23, and the front end of the fastening protrusion 23 is rounded arc-shaped.

[0034] The male connector 1 has three sets of insertion slots 11 on its outer periphery that mate with the connecting fastener 21. Each insertion slot 11 includes a guide slot 111 that mates with the connecting fastener 21, and a positioning slot 112 that mates with the fastening protrusion 23 at the end of the guide slot 111. An adjustment slot 12 is located at the end of the insertion slot 11, and an external thread 13 is provided in the adjustment slot 12. A disassembly component 3 for separating the male connector 1 and the female connector 2 is provided on the side of the insertion slot 11. The disassembly component 3 includes an adjustment bushing 31 disposed in the adjustment slot 12. The adjustment bushing 31 is connected to three sets of abutment plates 33 via a connecting shaft plate 32 at the end of the insertion slot 11, and the three sets of abutment plates 33 are located at the end of the guide slot 111. An internal thread 34 is provided on the inner periphery of the adjustment bushing 31, and the internal thread 34 mates with the external thread 13. The abutment plate 33 has a triangular cross-sectional shape so that its front end engages with the snap-fit ​​protrusion 23. The width of the adjusting groove 12 is greater than the width of the adjusting sleeve 31 so that the adjusting sleeve 31 can move in the adjusting groove 12 via threads.

[0035] The female connector 2 is inserted into the insertion slot 11 side of the male connector 1 via a connecting buckle 21, thereby completing the coaxial connection between the male connector 1 and the female connector 2.

[0036] The working principle of the high coaxiality RF connector provided by this utility model is as follows: The three sets of connecting plates 21 on the outer periphery of the female connector 2 are aligned with the three sets of insertion slots 11 on the outer periphery of the male connector 1, and then the female connector 2 is inserted towards the male connector 1. During insertion, the engaging protrusions 23 of the connecting plates 21 abut against the front end of the insertion slots 11 of the male connector 1. The engaging protrusions 23, under force, undergo elastic rotation through the torsion spring shaft 22.

[0037] When the female connector 2 is inserted to a certain extent, the front end of the connecting plate 21, the engaging protrusion 23, reaches the positioning groove 112 at the tail end of the guide groove 111. Under the elastic force of the torsion spring shaft 22, the connecting plate 21 buckles inward, so that the engaging protrusion 23 is embedded in the positioning groove 112, thereby realizing a firm connection between the female connector 2 and the male connector 1, completing the coaxial connection between the male connector 1 and the female connector 2, and ensuring the coaxiality of the inner conductor and the outer conductor.

[0038] During disassembly: Rotate the adjusting sleeve 31. Since the internal thread 34 on the inner circumference of the adjusting sleeve 31 and the external thread 13 at the adjusting groove 12 cooperate with each other, rotating the adjusting sleeve 31 will cause the adjusting sleeve 31 to move towards the female head 2 in the adjusting groove 12.

[0039] As the adjusting bushing 31 moves, the three sets of abutment plates 33 connected by the connecting shaft plate 32 gradually move towards the tail end of the guide groove 111 and press against the tail end of the connecting buckle plate 21. Under the pressing action of the abutment plate 33, the connecting buckle plate 21 overcomes the elastic force of the torsion spring shaft 22 and rises, causing the buckling protrusion 23 to disengage from the positioning groove 112.

[0040] Once all the latching protrusions 23 of the connecting plates 21 have disengaged from the positioning grooves 112, the female head 2 can be pulled out from the insertion groove 11 side of the male head 1, thus separating the male head 1 from the female head 2. The separation process will not damage the coaxiality of the connector.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high coaxiality radio frequency connector, characterized in that: The device includes a male connector (1) and a female connector (2) for radio frequency connectors. The female connector (2) has three sets of connecting plates (21) on its outer periphery. The male connector (1) has three sets of insertion slots (11) that cooperate with the connecting plates (21) on its outer periphery. A disassembly part (3) for separating the male connector (1) and the female connector (2) is provided on the side of the insertion slots (11). The female head (2) is inserted into the insertion slot (11) side of the male head (1) through the connecting buckle plate (21) to complete the coaxial connection between the male head (1) and the female head (2).

2. The high coaxiality RF connector according to claim 1, characterized in that: The tail end of the connecting buckle plate (21) is connected to the female head (2) through the torsion spring shaft (22), and the tail end of the connecting buckle plate (21) is arc-shaped. The front end of the connecting plate (21) is provided with a fastening protrusion (23), and the front end of the fastening protrusion (23) is provided in a smooth arc shape.

3. A high coaxiality RF connector according to claim 2, characterized in that: The insertion slot (11) includes a guide slot (111) that cooperates with the connecting buckle plate (21), and a positioning slot (112) that cooperates with the buckling protrusion (23) is provided at the tail end of the guide slot (111).

4. A high coaxiality RF connector according to claim 3, characterized in that: An adjustment groove (12) is provided at the tail end of the insertion groove (11), and an external thread (13) is provided at the adjustment groove (12).

5. A high coaxiality RF connector according to claim 4, characterized in that: The disassembly component (3) includes an adjusting bushing (31) disposed in the adjusting groove (12). The adjusting bushing (31) is located at the tail end of the insertion groove (11) and is connected to three sets of abutment plates (33) via a connecting shaft plate (32). The three sets of abutment plates (33) are located at the tail end of the guide groove (111).

6. A high coaxiality RF connector according to claim 5, characterized in that: An internal thread (34) is provided on the inner circumference side of the adjusting bushing (31), and the internal thread (34) and the external thread (13) are mutually engaged.

7. A high coaxiality RF connector according to claim 5, characterized in that: The cross-sectional shape of the abutment plate (33) is triangular, so that the front end of the abutment plate (33) fits with the fastening protrusion (23).

8. A high coaxiality RF connector according to claim 5, characterized in that: The length of the adjusting groove (12) is greater than the length of the adjusting sleeve (31) so that the adjusting sleeve (31) can move at the adjusting groove (12) through the internal thread.