A radio frequency coaxial connector

Abstract

This application relates to the field of radio frequency (RF) connector technology, and more particularly to an RF coaxial connector. An RF coaxial connector includes a connector housing, a first locking assembly, and a second locking assembly. The first and second locking assemblies secure a cable within the connector housing. The first locking assembly includes a six-jaw clamp and a threaded sleeve. One end of the six-jaw clamp is threadedly connected to the connector housing, and the other end is used to clamp the cable. The threaded sleeve is fixedly connected to the six-jaw clamp via a first connecting assembly. When the six-jaw clamp is subjected to pressure from the threaded sleeve, it tightens inward to lock the cable. The second locking assembly is disposed on the threaded sleeve and also used to lock the cable. This application helps improve the stability of RF connectors and cables under dynamic load conditions.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency connector technology, and in particular to a radio frequency coaxial connector. Background Technology

[0002] Currently in the semiconductor industry, high-power cable assemblies (including RF connectors and cables) are widely used for interconnection between RF power supplies and adapters; RF coaxial connectors, in conjunction with transmission medium cables, enable RF signal interconnection between devices. With the increasing power of devices and the growing complexity of operating conditions, the reliability requirements for RF coaxial connectors are becoming increasingly stringent.

[0003] However, traditional connectors are prone to performance degradation under dynamic load conditions, especially under frequent dragging or torsion conditions. For example, under dragging stress, insufficient clamping force can cause the connector to detach from the cable, or insufficient torsional strength of the connector can cause the cable shielding braid to break, resulting in signal transmission interruption. Therefore, traditional RF connectors and cables have poor stability under dynamic load conditions. Utility Model Content

[0004] To improve the stability of RF connectors and cables under dynamic load conditions, this application provides an RF coaxial connector.

[0005] This application provides an RF coaxial connector, which adopts the following technical solution: An RF coaxial connector includes a connector housing, a first locking assembly, and a second locking assembly. The first and second locking assemblies secure a cable within the connector housing. The first locking assembly includes a six-jaw clamp and a threaded sleeve. One end of the six-jaw clamp is fixedly connected to the connector housing via a threaded connection, and the other end of the six-jaw clamp is used to clamp the cable. The threaded sleeve is fixedly connected to the six-jaw clamp via a first connecting assembly. When the six-jaw clamp is subjected to pressure from the threaded sleeve, the six-jaw clamp tightens inward to lock the cable. The second locking assembly is disposed on the threaded sleeve and is used to lock the cable.

[0006] By adopting the above technical solution, the cable and the RF coaxial connector are locked together using the first locking component and the second locking component, which can effectively reduce the probability of cable loosening and falling off, and ensure a stable connection between the RF coaxial connector and the cable; the six-jaw clamp tightens inward under the pressure of the threaded sleeve to lock the cable, which can reliably fix the cable; the dual-stage locking mechanism enhances the connection stability under dynamic load, effectively reducing the probability of cable falling off under dragging or twisting conditions.

[0007] Optionally, the first connecting component includes an external thread, an internal thread, and an internal cone. The external thread is disposed on the surface of the six-jaw clamp near one end of the connector housing. The internal thread is disposed on the inner wall of the threaded sleeve near one end of the six-jaw clamp. The threaded sleeve is disposed on the six-jaw clamp. The threaded sleeve is fixedly connected to the six-jaw clamp by the threaded locking of the external thread and the internal thread. The internal cone is disposed on the inner wall of the threaded sleeve and is used to press against the six-jaw clamp so that the six-jaw clamp is tightened inward to lock the cable.

[0008] By adopting the above technical solution, the threaded sleeve and the six-jaw clamp are fixedly connected by the thread locking of the external and internal threads. At the same time, the inner cone abuts against the six-jaw clamp to tighten it inward, thereby effectively locking the cable and ensuring that the cable is stably locked in the connector housing.

[0009] Optionally, the external thread on the six-jaw clamp includes a first thread and a second thread arranged along the same axis; the first thread is used for threaded connection with the connector housing, and the second thread is used for threaded connection with the threaded sleeve.

[0010] By adopting the above technical solution, the external thread includes a first thread and a second thread, which enables the six-jaw clamp to be firmly connected to the connector housing and the threaded sleeve respectively, achieving reliable assembly and contributing to the overall structural stability and effective cable locking.

[0011] Optionally, the second locking assembly includes a first clamp, a second clamp, and a bolt. The threaded sleeve has a mounting groove at one end away from the six-jaw clamp for placing the first clamp and the second clamp. The first clamp and the second clamp are used to abut against the cable. Both the first clamp and the second clamp have a first threaded hole. The side wall of the mounting groove has a second threaded hole for communicating with the first threaded hole. The bolt passes through the second threaded hole and locks into the first threaded hole.

[0012] By adopting the above technical solution, the second locking assembly, composed of the first clamping plate, the second clamping plate, and the bolt, can further lock the cable. The second locking assembly and the first locking assembly form an axial complementary locking, which improves the connection stability between the cable and the connector. The mounting groove provides an installation position for the first clamping plate and the second clamping plate, ensuring the compactness of the structure. The bolt passes through the second threaded hole on the side wall of the mounting groove and locks with the first threaded hole on the first clamping plate and the second clamping plate, so that the first clamping plate and the second clamping plate can firmly press against the cable.

[0013] Optionally, the six-jaw clamp includes a fixing part and a clamping part. The external thread is provided on the fixing part. The fixing part is used to fix and connect with the connector housing and the threaded sleeve. The clamping part is used to clamp the cable. The clamping part includes six jaw clips. Each jaw clip has multiple first protrusions on its inner side to increase axial and radial friction.

[0014] By adopting the above technical solution, the external thread is set on the fixing part of the six-jaw clamp, which can fix the fixing part to the connector housing and the threaded sleeve; the clamping part is composed of 6 jaw clamps and can clamp the cable; multiple first protrusions are provided on the inner side of each jaw clamp to increase axial and radial friction, thereby enhancing the locking effect on the cable.

[0015] Optionally, the claw clamp is provided with a guide plate on the side near the threaded sleeve, the guide plate is provided with a first inclined surface on the side near the threaded sleeve, and the inner cone is provided with a second inclined surface on the side near the first inclined surface. When the threaded sleeve moves toward the six-jaw clamp, the second inclined surface abuts against the first inclined surface, so that the guide plate abuts against the cable.

[0016] By adopting the above technical solution, a guide plate is provided on the side of the claw clamp near the threaded sleeve. The guide plate has a first inclined surface and the inner cone has a second inclined surface. When the threaded sleeve moves towards the six-jaw clamp, the second inclined surface can be pressed against the first inclined surface, thereby pressing the guide plate against the cable, which effectively improves the locking effect on the cable.

[0017] Optionally, both the first and second clamping pieces are provided with N second protrusions, where N is an integer greater than or equal to 2, and the second protrusions are used to increase axial and radial friction.

[0018] By adopting the above technical solution, at least two second protrusions are provided on the first and second clamps of the RF coaxial connector, which can increase the axial and radial friction between the cable and the first and second clamps, so that the second locking component can better lock the cable.

[0019] Optionally, the bolt is a countersunk head hex bolt.

[0020] By adopting the above technical solution, using internal hexagon countersunk bolts allows the bolt head to be recessed into the connector, preventing the bolt head from protruding and affecting the installation space or causing collision damage. At the same time, it facilitates tool operation and achieves reliable locking of the cable by the second locking component.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. By using the first and second locking components to secure the cable to the RF coaxial connector, the probability of cable loosening and detachment can be effectively reduced, ensuring a stable connection between the RF coaxial connector and the cable. The six-jaw clamp tightens inward under the pressure of the threaded sleeve to lock the cable, reliably securing it. The second locking component, composed of the first clamp, the second clamp, and the bolt, can further tighten the cable. The second locking component and the first locking component form an axial complementary locking mechanism, improving the connection stability between the cable and the connector. The dual-stage locking mechanism synergistically enhances the connection stability under dynamic loads, effectively reducing the probability of cable detachment under dragging or torsion conditions. 2. The external thread is set on the fixing part of the six-jaw clamp, which can fix the fixing part to the connector housing and the threaded sleeve. The clamping part consists of 6 jaws and can clamp the cable. Multiple first bosses are provided on the inner side of each jaw to increase axial and radial friction, thereby enhancing the locking effect on the cable. The first and second clamps of the RF coaxial connector are provided with at least two second bosses, which can increase the axial and radial friction between the cable and the first and second clamps, so that the second locking assembly can better lock the cable. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 These are exploded images of embodiments of this application; Figure 3 This is a perspective view of the six-jaw wire clamp in the embodiments of this application; Figure 4 This is a cross-sectional view of an embodiment of this application; Figure 5 This is an exploded view of the second locking component in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures: 1. Connector housing; 2. First locking assembly; 3. Second locking assembly; 4. Cable; 5. Six-jaw clamp; 6. Threaded sleeve; 7. First connecting assembly; 8. External thread; 9. Internal thread; 10. Internal cone; 11. First thread; 12. Second thread; 13. First threaded hole; 14. Second threaded hole; 15. First clamping piece; 16. Second clamping piece; 17. Bolt; 18. Resettling groove; 19. Fixing part; 20. Clamping part; 21. Jaw clamping piece; 22. First boss; 23. Guide piece; 24. First inclined surface; 25. Second inclined surface; 26. Second boss. Detailed Implementation

[0024] The following is a further detailed description of this application.

[0025] This application discloses an RF coaxial connector.

[0026] Reference Figures 1-2The core of the RF coaxial connector in this embodiment includes a connector housing 1, a first locking component 2, and a second locking component 3. The first locking component 2 and the second locking component 3 are sequentially arranged along the axial direction of the cable 4 and work together to securely lock the cable 4 within the inner cavity of the connector housing 1. This innovative dual-stage locking mechanism significantly improves the connector's resistance to torsion and axial clamping force on the cable 4 under dynamic loads, preventing the cable 4 from loosening and affecting signal transmission stability. Specifically, through the dual action of the first locking component 2 and the second locking component 3, a sufficiently stable fixing force can be formed on the cable 4 in both the axial and radial directions.

[0027] Among them, such as Figures 2-3 As shown, the first locking assembly 2 includes a six-jaw clamp 5 and a threaded sleeve 6. The six-jaw clamp 5 includes a fixing part 19 and a clamping part 20. The fixing part 19 of the six-jaw clamp 5 is provided with an external thread 8, which is threadedly connected to the corresponding thread inside the connector housing 1 to achieve a fixed connection with the connector housing 1. The clamping part 20 of the six-jaw clamp 5 is used to clamp the cable 4. The clamping part 20 of the six-jaw clamp 5 includes six jaw clips 21 evenly distributed circumferentially. The jaw clips 21 can open slightly outward in their natural state to facilitate the insertion of the cable 4. Each jaw clip 21 has multiple first protrusions 22 on its inner side, which are intended to increase the contact area with the surface of the cable 4 and improve the friction, thereby better fixing the cable 4 in the axial and radial directions.

[0028] Specifically, the external thread 8 on the six-jaw clamp 5 includes a first thread 11 and a second thread 12 arranged along the same axis; the first thread 11 is used for threaded connection with the connector housing 1, and the second thread 12 is used for threaded connection with the threaded sleeve 6; so that the six-jaw clamp 5 is securely connected to the connector housing 1 and the threaded sleeve 6 respectively, achieving reliable assembly, which is beneficial to the overall structural stability and the effective locking of the cable 4.

[0029] Reference Figures 3-4The threaded sleeve 6 is fixedly connected to the six-jaw clamp 5 via the first connecting assembly 7. When the six-jaw clamp 5 is subjected to pressure from the threaded sleeve 6, it tightens inward to lock the cable 4. The first connecting assembly 7 includes an external thread 8 on the fixing part 19 of the six-jaw clamp 5, an internal thread 9 on the inner wall of the threaded sleeve 6 near the end of the six-jaw clamp 5, and an inner cone 10 fixed to the inner wall of the threaded sleeve 6. The threaded locking achieves the initial fixation between the threaded sleeve 6 and the six-jaw clamp 5. Since the inner cone 10 is located on the inner wall of the threaded sleeve 6, when the threaded sleeve 6 moves axially along the six-jaw clamp 5, the inner cone 10 will gradually approach the six-jaw clamp 5. The jaw clip 21 on the six-jaw clamp 5 has a guide plate 23 on the side near the threaded sleeve 6. The guide plate 23 has a first inclined surface 24 on the side near the threaded sleeve 6, and the inner cone 10 has a second inclined surface 25 on the side near the first inclined surface 24. When the threaded sleeve 6 moves toward the six-jaw clamp 5, the second inclined surface 25 abuts against the first inclined surface 24. Due to the effect of the inclined surface, the guide plate 23 will gradually move toward the cable 4, thereby causing the six-jaw clamp 5 to tighten inward, and finally locking the cable 4.

[0030] The combination logic and effect of the first locking component 2 are remarkable. The threaded connection between the six-jaw clamp 5 and the connector housing 1 ensures the basic fixed position of the six-jaw clamp 5. The threaded sleeve 6 connects to the six-jaw clamp 5 through the first connecting component 7 and generates axial pressure. The inclined structure causes the six-jaw clamp 5 to tighten inward, thereby forming a strong clamping force on the cable 4 in the radial direction. Multiple first protrusions 22 further enhance this clamping effect, preventing the cable 4 from sliding axially, effectively securing the cable 4 firmly from two dimensions.

[0031] Reference Figure 5The second locking assembly 3 is located at the end of the threaded sleeve 6 away from the six-jaw clamp 5. The second locking assembly 3 includes a first clamping piece 15, a second clamping piece 16, and a bolt 17. An annular mounting groove 18 is provided at the end of the threaded sleeve 6 away from the six-jaw clamp 5. During assembly, the first clamping piece 15 and the second clamping piece 16 are engaged circumferentially along the cable 4 and placed together into the mounting groove 18. Both the first clamping piece 15 and the second clamping piece 16 have first threaded holes 13, and corresponding second threaded holes 14 are provided on the side wall of the mounting groove 18. During assembly and locking, the bolt 17 passes through the second threaded holes 14 sequentially from the outside to the inside and is screwed into the corresponding first threaded holes 13. The pressure generated by tightening the bolt 17 causes the first clamping piece 15 and the second clamping piece 16 to move radially inward within the mounting groove 18, thereby clamping the cable 4. The inner surfaces of both the first clamping plate 15 and the second clamping plate 16 are provided with multiple second protrusions 26. These second protrusions 26 can significantly increase the axial and radial frictional resistance between the clamping plate and the cable 4 when the clamping plate clamps the cable 4, thereby enhancing the clamping reliability and resisting axial slippage and torsion under dynamic loads. The bolt 17 is a countersunk head bolt 17. The countersunk head design effectively reduces the overall height after assembly and avoids interference with external space.

[0032] The combination logic and effect of the second locking assembly 3 are remarkable. The clamping structure, composed of the first clamping piece 15, the second clamping piece 16, and the bolt 17, directly applies a strong radial clamping force to the cable 4. This design effectively disperses the axial stress applied to the cable 4 under dragging or torsional conditions, and in particular prevents axial slippage of the cable 4 relative to the connector housing 1, thereby significantly improving the stability of the entire connector under dynamic load conditions.

[0033] The implementation principle of this application embodiment is as follows: Screw the external thread 8 on the fixing part 19 of the six-jaw clamp 5 into the corresponding threaded interface of the connector housing 1 to complete the initial positioning and fixation of the six-jaw clamp 5 and the housing. Then, insert the end of the cable 4 into the clamping part 20 of the six-jaw clamp 5, positioning it within the six circumferentially evenly distributed jaw pieces 21. Place the threaded sleeve 6 around the six-jaw clamp 5, aligning its internal thread 9 with the second thread 12 of the external thread 8 of the six-jaw clamp 5. Tighten the threaded sleeve 6 to move it along the axial direction of the six-jaw clamp 5. During this process, the second inclined surface 25 of the inner cone 10 of the inner wall of the threaded sleeve 6 gradually contacts and abuts against the first inclined surface 24 of the guide piece 23 in the jaw piece 21. Under the constraint of the conical surface of the inner cone 10, the axial thrust of the threaded sleeve 6 is efficiently and synchronously converted into a uniform radial centripetal force acting on all six jaw pieces 21, driving the six jaw pieces 21 to synchronously and uniformly contract radially inward.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A radio frequency coaxial connector, characterized in that, The connector includes a connector housing (1), a first locking assembly (2), and a second locking assembly (3). The first locking assembly (2) and the second locking assembly (3) lock the cable (4) inside the connector housing (1). The first locking assembly (2) includes a six-jaw clamp (5) and a threaded sleeve (6). One end of the six-jaw clamp (5) is fixedly connected to the connector housing (1) by a threaded connection, and the other end of the six-jaw clamp (5) is used to clamp the cable (4). The threaded sleeve (6) is fixedly connected to the six-jaw clamp (5) by a first connecting assembly (7). When the six-jaw clamp (5) is subjected to pressure from the threaded sleeve (6), the six-jaw clamp (5) tightens inward to lock the cable (4). The second locking assembly (3) is disposed on the threaded sleeve (6) and is used to lock the cable (4).

2. The radio frequency coaxial connector according to claim 1, characterized in that, The first connecting component (7) includes an external thread (8), an internal thread (9), and an internal cone (10). The external thread (8) is disposed on the surface of the six-jaw clamp (5) at one end near the connector housing (1). The internal thread (9) is disposed on the inner wall of the threaded sleeve (6) at one end near the six-jaw clamp (5). The threaded sleeve (6) is disposed on the six-jaw clamp (5). The threaded sleeve (6) is fixedly connected to the six-jaw clamp (5) by the threaded locking of the external thread (8) and the internal thread (9). The internal cone (10) is disposed on the inner wall of the threaded sleeve (6). The internal cone (10) is used to abut against the six-jaw clamp (5) so that the six-jaw clamp (5) is tightened inward to lock the cable (4).

3. The radio frequency coaxial connector according to claim 2, characterized in that, The external thread (8) on the six-jaw clamp (5) includes a first thread (11) and a second thread (12) arranged along the same axis; the first thread (11) is used for threaded connection with the connector housing (1), and the second thread (12) is used for threaded connection with the threaded sleeve (6).

4. The radio frequency coaxial connector according to claim 1, characterized in that, The second locking assembly (3) includes a first clamping piece (15), a second clamping piece (16), and a bolt (17). The threaded sleeve (6) is provided with a placement groove (18) for placing the first clamping piece (15) and the second clamping piece (16) at one end away from the six-jaw clamp (5). The first clamping piece (15) and the second clamping piece (16) are used to abut against the cable (4). The first clamping piece (15) and the second clamping piece (16) are each provided with a first threaded hole (13). The side wall of the placement groove (18) is provided with a second threaded hole (14) for communicating with the first threaded hole (13). The bolt (17) passes through the second threaded hole (14) and locks with the first threaded hole (13).

5. The radio frequency coaxial connector according to claim 2, characterized in that, The six-jaw clamp (5) includes a fixing part (19) and a clamping part (20). The external thread (8) is provided on the fixing part (19). The fixing part (19) is used to fix and connect with the connector housing (1) and the threaded sleeve (6). The clamping part (20) is used to clamp the cable (4). The clamping part (20) includes 6 jaw clips (21). Each jaw clip (21) has multiple first bosses (22) on its inner side to increase axial and radial friction.

6. The radio frequency coaxial connector according to claim 5, characterized in that, The claw clamp (21) is provided with a guide plate (23) on the side near the threaded sleeve (6). The guide plate (23) is provided with a first inclined surface (24) on the side near the threaded sleeve (6). The inner cone (10) is provided with a second inclined surface (25) on the side near the first inclined surface (24). When the threaded sleeve (6) moves toward the six-jaw clamp (5), the second inclined surface (25) abuts against the first inclined surface (24) so ​​that the guide plate (23) abuts against the cable (4).

7. The radio frequency coaxial connector according to claim 4, characterized in that, The first clamping piece (15) and the second clamping piece (16) are each provided with N second protrusions (26), where N is an integer greater than or equal to 2, and the second protrusions (26) are used to increase axial and radial friction.

8. The radio frequency coaxial connector according to claim 4, characterized in that, The bolt (17) is a countersunk head hex bolt (17).

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