Phase-adjustable radio frequency connector

Abstract

The utility model provides a phase-adjustable radio frequency connector. The phase-adjustable radio frequency connector is connected with a cable, the cable sequentially comprises an outer skin, a metal braid layer and a cable core from outside to inside, the phase-adjustable radio frequency connector comprises an interface outer conductor, a welding cup body and a center conductor, a first through cavity is formed in the interface outer conductor in a penetrating mode, and a second through cavity is formed in the welding cup body in a penetrating mode; the interface outer conductor is in threaded meshing connection with the welding cup body, the center conductor is arranged in a first through cavity of the interface outer conductor, and the cable extends into a second through cavity; the metal braid layer extends and protrudes out of the sheath, and the wire core extends and protrudes out of the metal braid layer; the metal braid layer is connected with the welding cup body, and the wire core is connected with the central conductor. According to the phase-adjustable radio frequency connector, the interface outer conductor and the welding cup main body are in meshed connection, and the position distance between the interface outer conductor and the welding cup main body is adjusted through rotation, so that the effect of quickly and accurately adjusting the phase value is achieved.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and specifically to an adjustable phase radio frequency connector. Background Technology

[0002] In the current RF connector industry, phase-stable cable assemblies represent a huge market with a wide range of applications.

[0003] Stable phase cables are particularly suitable for high-precision applications in harsh climates, such as phased array radar deployed in high-altitude areas. Due to the extreme temperature difference between day and night in high-altitude areas, the temperature variation range exceeds the range that ordinary cables can withstand, resulting in a large phase change. This causes a certain time delay in the received signal. Of course, it also requires that the cable assembly itself be assembled in a way that ensures that the phase difference between each group meets the requirements.

[0004] The phase matching process for cable assemblies is complex and more difficult to manufacture than conventional assemblies. Furthermore, the phase matching assembly is greatly affected by the length of the cable assembly, requiring high precision and is time-consuming and labor-intensive. Chinese invention patent application number 202310767055.4 discloses a phase-stable RF cable assembly and an assembly method for relative phase consistency, providing a phase adjustment solution. However, the connector structure of this solution is relatively complex, placing high demands on production and assembly.

[0005] Therefore, researching a novel adjustable phase radio frequency connector has become an urgent problem for those skilled in the art. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this application provides an adjustable phase radio frequency connector, which achieves precise phase matching of the stable phase cable by adjusting the spacing between components.

[0007] Specifically, this application provides an adjustable phase RF connector for connecting to a cable. The cable includes, from the outside to the inside, an outer sheath, a metal braided layer, and a wire core. The adjustable phase RF connector includes an outer interface conductor, a solder cup body, and a center conductor. A first cavity is formed inside the outer interface conductor, and a second cavity is formed inside the solder cup body. The outer interface conductor and the solder cup body are threadedly engaged. The center conductor is located in the first cavity of the outer interface conductor, and the cable extends into the second cavity. The metal braided layer extends beyond the outer sheath, and the wire core extends beyond the metal braided layer. The metal braided layer is connected to the solder cup body, and the wire core is connected to the center conductor.

[0008] In one alternative implementation, the center conductor is fixedly connected to the inner wall of the outer conductor of the interface via an insulating element.

[0009] In one alternative implementation, the adjustable phase RF connector further includes a positioning cylinder located within a first cavity, the outer peripheral surface of the positioning cylinder being interference-fitted with the inner wall of the outer conductor of the interface, and one end of the positioning cylinder abutting against an insulating element.

[0010] In one alternative implementation, the adjustable phase RF connector further includes a housing threaded sleeve that fits onto the outer surface of one end of the interface outer conductor.

[0011] In one alternative implementation, the outer surface of the interface conductor is recessed to form a snap-fit ​​groove, the inner wall of the outer casing threaded sleeve is formed with a limiting groove, a C-ring is sleeved in the snap-fit ​​groove, and the outer periphery of the C-ring is accommodated in the limiting groove.

[0012] In one alternative implementation, one end of the outer conductor of the interface is provided with an external thread, and one end of the welding cup body is provided with an internal thread, with the external thread and the internal thread engaging and connecting.

[0013] In one alternative implementation, the welding cup body has a through-hole that extends from the outer surface of the welding cup body to the second cavity and connects to the metal braided layer. The welding cup body is then filled with solder through the through-hole to weld with the metal braided layer.

[0014] In one alternative implementation, the outer conductor, the welding cup body, the center conductor, and the outer sleeve are arranged coaxially.

[0015] The technical solution provided by the aforementioned implementation method has at least the following beneficial effects:

[0016] (1) The adjustable phase RF connector of this application is connected by the meshing of the outer conductor of the interface and the solder cup body. By rotating to adjust the position distance between the two, the phase value can be adjusted quickly and accurately.

[0017] (2) This application can adjust the phase value without cutting the cable or disassembling the connector, which greatly improves the phase matching efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0020] Figure 2 A cross-sectional view of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0021] Figure 3 An exploded view of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0022] Figure 4 A schematic diagram of the structure of the interface outer conductor and solder cup body of the adjustable phase radio frequency connector provided in one embodiment of this application;

[0023] Figure 5 A schematic diagram of the solder cup body of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0024] Figure 6 A schematic diagram of the adjustment spacing position of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0025] Figure 7 A schematic diagram of the structure of the center conductor and cable of an adjustable phase radio frequency connector provided in one embodiment of this application;

[0026] Figure 8 This is a schematic diagram of the housing threaded sleeve of an adjustable phase radio frequency connector provided in one embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Cable; 101. Outer sheath; 102. Metal braided layer; 103. Core; 2. Interface outer conductor; 201. First through cavity; 202. Clip groove; 203. External thread; 3. Welding cup body; 301. Second through cavity; 302. Internal thread; 303. Welding hole; 4. Center conductor; 401. Annular groove; 402. Claw part; 5. Insulating component; 6. Positioning cylinder; 7. Outer shell threaded sleeve; 701. Limiting groove; 702. Beveled part; 8. C-ring. Detailed Implementation

[0029] The technical solutions of the embodiments of this application 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 application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0031] Furthermore, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure as shown in the attached drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the structure.

[0032] The traditional process of matching phases in stable phase cables is quite time-consuming and labor-intensive, with low efficiency and poor accuracy.

[0033] The common process prior to this application was to first perform phase matching tests on the connecting cables. If the phases between each group could not match, the connectors of the cables would be removed and the cables would be cut short.

[0034] However, because the metal braided mesh of the phase-stabilized cable is very dense and quite thick, manual cutting is extremely time-consuming and labor-intensive, and the accuracy of manual cutting is very poor. If it is cut too short and the phase matching value does not meet the requirements, the entire component will have to be scrapped, resulting in waste.

[0035] This application addresses the problems of the prior art by providing an adjustable phase radio frequency connector that eliminates the need for cable cutting or connector disassembly. By connecting to a test device to observe values, the length of the components can be adjusted simultaneously by adjusting the spacing between the components, thereby achieving a phase value that meets the specifications.

[0036] For details, please refer to Figures 1 to 8 One embodiment of this application provides an adjustable phase radio frequency connector, which is connected to a cable to form a cable assembly, and can achieve precise and rapid adjustment of the phase value of the cable.

[0037] The cable 1 includes, from the outside to the inside, an outer sheath 101, a metal braided layer 102, and a wire core 103. According to conventional technology, an insulation layer is usually provided between the metal braided layer 102 and the wire core 103.

[0038] Combination Figures 1 to 3 and Figure 7 As shown in the figure, the adjustable phase RF connector in this application includes an outer interface conductor 2, a solder cup body 3 and a center conductor 4. The outer interface conductor 2 has a first through cavity 201 inside, and the solder cup body 3 has a second through cavity 301 inside.

[0039] In this application, the outer conductor 2, the welding cup body 3, and the center conductor 4 are all made of conductive materials.

[0040] The outer conductor 2 is threadedly engaged with the welding cup body 3, the center conductor 4 is disposed in the first cavity 201 of the outer conductor 2, and the cable 1 extends into the second cavity 301; the metal braided layer 102 extends out of the outer sheath 101, and the wire core 103 extends out of the metal braided layer 102; the metal braided layer 102 is connected to the welding cup body 3, and the wire core 103 is connected to the center conductor 4.

[0041] Combination Figure 6 As shown, the outer conductor 2 and the welding cup body 3 are connected by a threaded engagement. The outer conductor 2 or the welding cup body 3 can be rotated to adjust the positional distance a between them. By changing the size of the distance a, the total length of the cable assembly can be changed to achieve the phase value that meets the specifications.

[0042] Combination Figure 2 and Figure 3 As shown, in one embodiment, the central conductor 4 is fixedly connected to the inner wall of the outer conductor 2 via an insulating member 5.

[0043] Specifically, the outer surface of the center conductor 4 is provided with an annular groove 401, the center of the insulating member 5 is sleeved in the annular groove 401, and the outer peripheral surface of the insulating member 5 is connected to the inner wall of the outer conductor 2 of the interface.

[0044] In this embodiment, the center of the insulating member 5 is provided with a through hole that matches the annular groove 401, and the outer peripheral surface of the insulating member 5 is adapted to the inner wall of the first through cavity 201, so that the insulating member 5 can be sleeved on the central conductor 4 and fixed in the first through cavity 201.

[0045] Specifically, the insulating component 5 can be made of an elastic insulating material. The insulating component 5 is embedded in the first through cavity 201 in an interference fit manner, so that the connection between the insulating component 5 and the outer conductor 2 of the interface is not easy to loosen, so as to stabilize the position of the center conductor 4.

[0046] Combination Figure 2 and Figure 3 As shown, the adjustable phase RF connector also includes a positioning cylinder 6, which is located in the first cavity 201. The outer peripheral surface of the positioning cylinder 6 is interference-fitted with the inner wall of the interface outer conductor 2, and one end of the positioning cylinder 6 abuts against the insulating member 5.

[0047] By tightly fitting the positioning cylinder 6 with the first cavity 201 of the outer conductor 2, and by abutting the insulating member 5, the positioning cylinder 6 can position the insulating member 5, preventing the center conductor 4 from moving into the RF connector due to the reaction force when plugged into the external connector during use, and avoiding adverse compression of the wire core 103 due to the rearward movement of the center conductor 4.

[0048] Specifically, the positioning cylinder 6 is hollow inside, and its exterior is matched and interference-fitted with the inner wall of the first through cavity 201.

[0049] Combination Figure 2 and Figure 7 As shown, in one embodiment, one end of the center conductor 4 is provided with a claw portion 402, and the wire core 103 is inserted into the claw portion 402. The claw portion 402 and the wire core 103 are movably connected to provide relative displacement space between the center conductor 4 and the wire core 103 when the outer conductor 2 and the welding cup body 3 are relatively displaced.

[0050] Combination Figure 1 and Figure 2 As shown in the figure, the adjustable phase RF connector in this application also includes a housing screw sleeve 7, which is sleeved on the outer surface of one end of the interface outer conductor 2.

[0051] The outer sleeve 7 is a connecting component used to mate the cable assembly with the outside. Its exterior can be configured as a hexagonal screw sleeve structure, and its interior is through.

[0052] Combination Figure 2 and Figure 3 As shown, in order to assemble the outer casing sleeve 7 with the outer interface conductor 2, in one embodiment, the outer surface of the outer interface conductor 2 is recessed to form a snap-fit ​​groove 202, the inner wall of the outer casing sleeve 7 is formed with a limiting groove 701, the snap-fit ​​groove 202 is fitted with a C-shaped ring 8, and the outer periphery of the C-shaped ring 8 is accommodated in the limiting groove 701.

[0053] The C-ring 8 is a conventional, open, deformable snap-fit ​​component. Under external pressure, its inner diameter can be reduced, and it will return to its large inner diameter shape after the external force is removed.

[0054] During assembly, the inner diameter of the C-ring 8 can be expanded first and then fitted onto the snap-fit ​​groove 202. Then, the C-ring 8 is squeezed and the outer shell threaded sleeve 7 is fitted onto the outer conductor 2. When the C-ring 8 moves to the limiting groove 701 inside the outer shell threaded sleeve 7, it is not squeezed by the inner wall of the outer shell threaded sleeve 7. The C-ring 8 expands again to fit between the snap-fit ​​groove 202 and the limiting groove 701. At this time, the connection between the outer shell threaded sleeve 7 and the outer conductor 2 is realized.

[0055] Combination Figure 8 As shown, to facilitate the insertion of the C-ring 8 during connection, the inner edge of the open end of the outer casing threaded sleeve 7 facing the outer conductor 2 is provided with a beveled portion 702. After compression, the C-ring 8 can be more smoothly inserted into the interior of the outer casing threaded sleeve 7 through the beveled portion 702.

[0056] Combination Figure 4 and Figure 5 As shown in this application, one end of the outer conductor 2 of the interface is provided with an external thread 203, and one end of the welding cup body 3 is provided with an internal thread 302. The external thread 203 and the internal thread 302 are engaged and connected.

[0057] To ensure the stability of the cable assembly after phase adjustment, thread-locking adhesive can be applied to the meshing joint of the external thread 203 and the internal thread 302. This adhesive will secure the external thread 203 and the internal thread 302 together after phase adjustment, preventing them from loosening and affecting the phase.

[0058] Combination Figure 2 , Figure 3 and Figure 5 As shown, in one embodiment, the welding cup body 3 is provided with a welding hole 303. The welding hole 303 extends from the outer surface of the welding cup body 3 to the second cavity 301 and is connected to the metal braided layer 102. The welding cup body 3 is filled with solder through the welding hole 303 to weld with the metal braided layer 102.

[0059] The welding hole 303 facilitates the welding of the metal braided layer 102 of the cable 1 to the welding cup body 3.

[0060] In this application, the outer conductor 2, the welding cup body 3, the center conductor 4, and the outer sleeve 7 are coaxially arranged. When the outer conductor and the welding cup body 3 move relative to each other, the center conductor 4, the cable 1, etc. can be moved synchronously.

[0061] The adjustable phase RF connector provided in this application is used as follows:

[0062] Insert the cable 1 into the welding cup body 3, and inject solder into the connection position between the welding cup body 3 and the metal braided layer 102 through the welding hole 303 to fix the welding cup body 3 and the cable 1 in place; assemble the center conductor 4, the outer sleeve 7 and the interface outer conductor 2.

[0063] Apply thread-locking adhesive to the surface of the internal thread 302 or the external thread 203, and connect the interface outer conductor 2 and the welding cup body 3 to engage and connect them.

[0064] The adjustable phase RF connector is quickly plugged into the phase testing instrument. By adjusting the positional distance 'a' between the outer conductor 2 and the solder cup body 3, the total length of the cable assembly is changed to achieve the phase value that meets the specifications, thus completing the phase adjustment. After the thread locking adhesive cures, the outer conductor 2 and the solder cup body 3 become difficult to move, achieving precise phase adjustment and fixation.

[0065] The technical solutions provided by the embodiments of this application have been described in detail above. Specific embodiments have been used to explain the principles and implementation methods of this application. The above description is only for the purpose of helping to understand the method and core mechanism of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An adjustable phase radio frequency connector for connecting to a cable, wherein the cable comprises, from the outside to the inside, an outer sheath, a metal braided layer, and a wire core, characterized in that: The adjustable phase RF connector includes an outer interface conductor, a solder cup body, and a center conductor. The outer interface conductor has a first through cavity, and the solder cup body has a second through cavity. The outer conductor of the interface is threadedly connected to the main body of the welding cup, the center conductor is disposed in the first through cavity of the outer conductor of the interface, and the cable extends into the second through cavity; The metal braided layer extends beyond the outer sheath, and the wire core extends beyond the metal braided layer; the metal braided layer is connected to the welding cup body, and the wire core is connected to the center conductor.

2. The adjustable phase RF connector according to claim 1, characterized in that: The central conductor is fixedly connected to the inner wall of the outer conductor of the interface through an insulating component.

3. The adjustable phase RF connector according to claim 2, characterized in that: The outer surface of the central conductor is provided with an annular groove, the center of the insulating component is sleeved in the annular groove, and the outer peripheral surface of the insulating component is connected to the inner wall of the outer conductor of the interface.

4. The adjustable phase RF connector according to claim 2, characterized in that: The adjustable phase RF connector further includes a positioning cylinder located within the first through cavity. The outer peripheral surface of the positioning cylinder is interference-fitted with the inner wall of the outer conductor of the interface, and one end of the positioning cylinder abuts against the insulating member.

5. The adjustable phase RF connector according to claim 4, characterized in that: One end of the central conductor is provided with a claw portion, and the wire core is inserted into the claw portion.

6. The adjustable phase RF connector according to claim 5, characterized in that: The adjustable phase RF connector also includes a housing threaded sleeve, which is fitted onto the outer surface of one end of the interface outer conductor.

7. The adjustable phase RF connector according to claim 6, characterized in that: The outer surface of the interface conductor is recessed to form a snap-fit ​​groove, and the inner wall of the outer shell threaded sleeve is formed with a limiting groove. A C-shaped ring is sleeved in the snap-fit ​​groove, and the outer periphery of the C-shaped ring is accommodated in the limiting groove.

8. The adjustable phase RF connector according to claim 1, characterized in that: One end of the outer conductor of the interface is provided with an external thread, and one end of the welding cup body is provided with an internal thread. The external thread and the internal thread are engaged and connected.

9. The adjustable phase RF connector according to claim 8, characterized in that: The welding cup body has a through-hole, which extends from the outer surface of the welding cup body to the second cavity and connects to the metal braided layer. The welding cup body is filled with solder through the welding hole to weld with the metal braided layer.

10. The adjustable phase RF connector according to claim 6, characterized in that: The outer conductor of the interface, the welding cup body, the central conductor, and the outer shell screw sleeve are arranged coaxially.

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