Phase-adjustable cable assembly
By introducing a threaded connection structure of phase adjustment nut and lock nut into the connection assembly of the RF cable assembly, the phase adjustment of the component during use is achieved, the problem of inconsistent electrical length of the cable assembly is solved, and the reliability and accuracy of the component are improved.
Patent Information
- Application Number
- CN202421715308.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When used, the electrical length inconsistent due to factors such as ambient temperature and bending, affecting the accuracy and distance resolution of the phased array radar.
An adjustable phase cable assembly is designed to allow the assembly to adjust phase by adjusting the nut during use, thereby achieving consistency of electrical length by introducing a threaded connection structure of the phase adjustment nut and lock nut into the connection assembly.
This design allows components to be debugged and phased on site during use, solves the problem of inconsistent electrical lengths of cable assemblies during use, and improves the reliability and accuracy of RF cable assemblies.
Smart Images
Figure CN222802153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable assemblies, in particular to a phase-adjustable cable assembly. Background Art
[0002] Recently, the requirements for weapon systems have become increasingly higher, and phased array radars have been widely used. Special requirements have been put forward for both the in-band fluctuation of the amplitude and phase of a single-channel receiver and the amplitude and phase consistency between multiple receivers. Therefore, the amplitude inconsistency between receivers will affect the antenna's directivity diagram, thereby affecting the accuracy and angle. It also affects the simultaneous addition of multiple received signals, widening the main lobe of the useful signal and thus affecting the distance resolution. Therefore, phased array radars not only require low loss, low standing wave, and high reliability for cable components, but also put forward new requirements for cable phase consistency and stability.
[0003] Therefore, before and during the assembly of RF cable assemblies, the components are required to have precise electrical lengths. There are many factors that affect the phase of the cable assembly, including the mechanical length of the cable, the dielectric constant of the insulator, the ambient temperature, and the bending of the cable.
[0004] In order to ensure the consistency of electrical length between components of the same model, RF cable components must be matched during assembly. Usually, the mechanical length of the components is accurately cut, assembled and tested to match them one by one.
[0005] However, there are inevitable environmental temperatures and bending conditions during the manufacturing and transportation of cables. During the manufacturing and transportation of products, the components need to be coiled to facilitate production, transportation, and packaging, but the cables must be unfolded when in use. Therefore, the traditional method of ensuring electrical length consistency during the manufacturing process cannot fully guarantee the length consistency during use. The longer the component length, the more obvious the phase inconsistency. The original cable components require production personnel to disassemble the connectors at the wiring site, recalculate the phase difference, and perform secondary phase matching. At this time, a component that can be debugged and matched on site is needed.
[0006] Therefore, the utility model proposes a phase-adjustable cable assembly. Utility Model Content
[0007] The purpose of the utility model is to solve the shortcomings in the prior art and to provide a phase-adjustable cable assembly.
[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a phase-adjustable cable assembly, comprising a cable, wherein connecting assemblies are arranged at the connecting points of both ends of the cable;
[0009] The connecting assembly includes a first connecting nut, a first outer conductor is arranged at the bottom of the first connecting nut, a first retaining spring is arranged between the first connecting nut and the insulating protective sleeve, a first center conductor is arranged at the bottom of the first outer conductor, a phase adjustment nut is arranged at the bottom of the first center conductor, a second locking nut is arranged at the bottom of the phase adjustment nut, and a welding body is arranged at the bottom of the second locking nut.
[0010] As a preferred implementation, a third outer conductor is rotatably connected inside the phase-adjusting nut, a second retaining spring is provided between the phase-adjusting nut and the third outer conductor, and a tailstock is provided at the bottom of the welding body.
[0011] The beneficial effect of adopting the above further solution is that the third outer conductor and the second clamping spring are the connecting mechanism of the phase-adjusting connector.
[0012] As a preferred embodiment, an outer wall of the cable is provided with an insulating protective sleeve, and the diameter of the insulating protective sleeve is matched with the diameter of the tailstock and the first connecting nut.
[0013] The beneficial effect of adopting the above further solution is that the outer wall of the cable is protected by the insulating protective sleeve to prevent the cable from being damaged during use.
[0014] As a preferred embodiment, an insulator is embedded and installed in the first connecting nut, a first locking nut is arranged on the first center conductor, and a second outer conductor and a second center conductor are arranged in sequence in the phase adjustment nut.
[0015] The beneficial effect of adopting the above further solution is that the insulator is mainly suitable for the insulating support device of the first central conductor, the first locking nut and the phase adjustment nut.
[0016] As a preferred implementation, the connection between the first outer conductor and the second outer conductor is an elastic connection of the beryllium copper expansion joint of the second outer conductor, and the second outer conductor and the third outer conductor are an interference fit structure.
[0017] The beneficial effect of adopting the above further solution is that the first outer conductor and the second outer conductor are elastically connected through the beryllium copper expansion joint on the second outer conductor, and the second outer conductor and the third outer conductor are an interference fit structure, allowing a longitudinal displacement of 8.2 mm.
[0018] As a preferred implementation manner, the first center conductor and the second center conductor are a two-body plug-in structure.
[0019] The beneficial effect of adopting the above further solution is that a longitudinal displacement of 8.2 mm is allowed by forming a two-body mating structure between the first center conductor, the connecting assembly, and the second center conductor and the cable.
[0020] As a preferred implementation manner, the second locking nut, the phase adjustment nut, the first locking nut and the first outer conductor are threadedly connected.
[0021] The beneficial effect of adopting the above further solution is: through the threaded connection between the second locking nut, the phase adjustment nut, the first locking nut and the first outer conductor, the phase of the component can be adjusted by moving the threaded connection up and down.
[0022] As a preferred implementation, the first connecting nut and the first retaining spring are a phase-adjusting connector connection structure.
[0023] The beneficial effect of adopting the above further solution is: the connection mechanism of the phase-adjusting connector is achieved through the first connecting nut and the first retaining spring.
[0024] Compared with the prior art, the advantages and positive effects of the utility model are:
[0025] In the utility model, the elastic connection of the beryllium copper expansion joint on the first outer conductor and the second outer conductor is achieved. At this time, the second outer conductor and the third outer conductor are formed into an interference fit structure, allowing a longitudinal displacement of 8.2 mm in length. The first center conductor, the first connecting nut, the second center conductor and the insulator are formed into a two-body plug-in structure, allowing a longitudinal displacement of 8.2 mm in length. The insulator mainly supports the first center conductor, the second center conductor and the insulator, and the first connecting nut and the first retaining spring are the connecting structures of the phase-adjusting connector. Therefore, the device can be used for on-site debugging of the phase-matching components. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a front view of a phase-adjustable cable assembly of the utility model;
[0027] Figure 2 This is a structural diagram of a connecting component in a phase-adjustable cable component of the utility model;
[0028] Figure 3 This is a front view of a connecting component in a phase-adjustable cable component of the utility model;
[0029] Figure 4 It is a cross-sectional view of a connecting component in a phase-adjustable cable component of the utility model.
[0030] Reference numerals
[0031] 1. Connecting assembly; 11. First connecting nut; 12. Insulator; 13. First outer conductor; 14. First retaining spring; 15. First center conductor; 16. First locking nut; 17. Phase adjustment nut; 18. Second outer conductor; 19. Second center conductor; 110. Third outer conductor; 111. Second retaining spring; 112. Second locking nut; 113. Welding body; 114. Tail stock;
[0032] 2. Cable;
[0033] 3. Insulating protective cover. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] like Figure 1-4 As shown, the utility model provides a technical solution: a phase-adjustable cable assembly, comprising a cable 2, wherein a connecting assembly 1 is arranged at the connection points of both ends of the cable 2; the connecting assembly 1 comprises a first connecting nut 11, a first outer conductor 13 is arranged at the bottom of the first connecting nut 11, a first retaining spring 14 is arranged between the first connecting nut 11 and the insulating protective sleeve 3, a first central conductor 15 is arranged at the bottom of the first outer conductor 13, a phase-adjusting nut 17 is arranged at the bottom of the first central conductor 15, a second locking nut 112 is arranged at the bottom of the phase-adjusting nut 17, a welding body 113 is arranged at the bottom of the second locking nut 112, a third outer conductor 110 is rotatably connected inside the phase-adjusting nut 17, a second retaining spring 111 is arranged between the phase-adjusting nut 17 and the third outer conductor 110, a tailstock 114 is arranged at the bottom of the welding body 113, an insulating protective sleeve 3 is arranged on the outer wall of the cable 2, and the diameter of the insulating protective sleeve 3 is the same as that of the tailstock. The diameters of the seat 114 and the first connecting nut 11 are adapted to each other, an insulator 12 is embedded in the first connecting nut 11, a first locking nut 16 is arranged on the first center conductor 15, a second outer conductor 18 and a second center conductor 19 are arranged in sequence in the phase-adjusting nut 17, and the first outer conductor 13 is elastically connected to the beryllium copper expansion joint on the second outer conductor 18. At this time, the second outer conductor 18 and the third outer conductor 110 are in an interference fit structure, allowing a longitudinal displacement of 8.2 mm in length, and a two-body plug-in structure is formed between the first center conductor 15, the first connecting nut 11, the second center conductor 19, and the insulator 12, allowing a longitudinal displacement of 8.2 mm in length, the insulator 12 mainly supports the first center conductor 15, the second center conductor 19 and the insulator 12, and the first connecting nut 11 and the first retaining spring 14 are the connection structures of the phase-adjusting connector, which solves the technical problems of the components for on-site debugging and matching.
[0036] Further, such as Figure 2-Figure 3As shown: the second retaining spring 111 and the second locking nut 112 are limit nuts for fixing the phase-adjusting nut 17 to move downward infinitely, the first locking nut 16 is a limit nut for fixing the phase-adjusting nut 17 to move upward infinitely, the second locking nut 112, the phase-adjusting nut 17, the first locking nut 16, and the first outer conductor 13 are threadedly connected, and the phase of the component is adjusted by moving up and down through the threaded connection.
[0037] Working principle:
[0038] like Figure 1-4 As shown, the elastic connection between the first outer conductor 13 and the beryllium copper expansion joint on the second outer conductor 18 is performed. At this time, the second outer conductor 18 and the third outer conductor 110 are in an interference fit structure, allowing a longitudinal displacement of 8.2 mm. The first center conductor 15, the first connecting nut 11, the second center conductor 19, and the insulator 12 are in a two-body plug-in structure, allowing a longitudinal displacement of 8.2 mm. The insulator 12 mainly supports the first center conductor 15, the second center conductor 19, and the insulator 12, and the first connecting nut 11 and the first retaining spring 14 are the connection structures of the phase-adjusting connector, and the second retaining spring 111 and the second locking nut 112 is a limit nut for the fixed phase-adjusting nut 17 to move downward infinitely, the first locking nut 16 is a limit nut for the fixed phase-adjusting nut 17 to move upward infinitely, the second locking nut 112, the phase-adjusting nut 17, the first locking nut 16, and the first outer conductor 13 are threaded connections, and the phase of the component is adjusted by moving up and down through the threaded connection. In the above, the component completes the initial phase matching work in the manufacturing process. When the component coil is opened, when the phase is matched for the second time, there is no need to disassemble the connector. The phase matching can be completed by adjusting the phase-adjusting nut 17. When the phase is short, adjust it to the connecting nut end, and when the phase is long, adjust it to the tail stock 114 end, and adjust it by 0.045mm≈1°.
[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A phase-adjustable cable assembly, comprising a cable (2), characterized in that: Connecting components (1) are provided at the connection points at both ends of the cable (2); The connection assembly (1) comprises a first connection nut (11), a first outer conductor (13) is arranged at the bottom of the first connection nut (11), a first retaining spring (14) is arranged between the first connection nut (11) and the insulating protective sleeve (3), a first center conductor (15) is arranged at the bottom of the first outer conductor (13), a phase adjustment nut (17) is arranged at the bottom of the first center conductor (15), a second locking nut (112) is arranged at the bottom of the phase adjustment nut (17), and a welding body (113) is arranged at the bottom of the second locking nut (112).
2. The phase-adjustable cable assembly according to claim 1, characterized in that: The interior of the phase-adjusting nut (17) is rotatably connected to a third outer conductor (110), a second retaining spring (111) is provided between the phase-adjusting nut (17) and the third outer conductor (110), and a tailstock (114) is provided at the bottom of the welding body (113).
3. The phase-adjustable cable assembly according to claim 1, characterized in that: An outer wall of the cable (2) is provided with an insulating protective sleeve (3), and the diameter of the insulating protective sleeve (3) is compatible with the diameters of the tailstock (114) and the first connecting nut (11).
4. The phase-adjustable cable assembly according to claim 1, characterized in that: An insulator (12) is embedded in the first connecting nut (11), a first locking nut (16) is arranged on the first central conductor (15), and a second outer conductor (18) and a second central conductor (19) are arranged in sequence in the phase adjustment nut (17).
5. The phase-adjustable cable assembly according to claim 1, characterized in that: The connection between the first outer conductor (13) and the second outer conductor (18) is an elastic connection of the beryllium copper expansion joint of the second outer conductor (18), and the second outer conductor (18) and the third outer conductor (110) are an interference fit structure.
6. The phase-adjustable cable assembly according to claim 1, characterized in that: The first center conductor (15) and the second center conductor (19) are two-body plug-in structures.
7. The phase-adjustable cable assembly according to claim 1, characterized in that: The second locking nut (112), the phase adjustment nut (17), the first locking nut (16) and the first outer conductor (13) are threadedly connected.
8. The phase-adjustable cable assembly according to claim 1, characterized in that: The first connecting nut (11) and the first clamping spring (14) form a phase-adjusting connector connection structure.