CN212257914U

CN212257914U - Phase-adjustable cable connector

Info

Publication number: CN212257914U
Application number: CN202021354625.5U
Authority: CN
Inventors: 曹刚
Original assignee: Nanjing Arance Electronics Co ltd
Current assignee: Nanjing Arance Electronics Co ltd
Priority date: 2020-07-11
Filing date: 2020-07-11
Publication date: 2020-12-29
Anticipated expiration: 2030-07-11

Abstract

The utility model discloses a cable connector of adjustable looks. The connector is used for a coaxial cable and comprises a welding sleeve, an outer conductor, a central conductor and a screw sleeve. The welding sleeve is sleeved at the tail end of the coaxial cable and is connected with the outer conductor of the coaxial cable in a welding mode. The outer conductor is mounted on the welding sleeve through the tail sleeve. The center conductor is arranged in the center of the outer conductor through an insulator and is connected with the axis conductor of the coaxial cable. The screw sleeve is arranged on the outer conductor, is coaxial with the central conductor and forms a plug together with the central conductor. A gasket cavity is arranged between the outer conductor and the welding sleeve. The gasket cavity is internally provided with a plurality of mutually overlapped gaskets for adapting the phase. The utility model discloses only need quantity or the thickness of the gasket of adjustment gasket intracavity can realize the purpose of phase matching, moreover the utility model discloses a under the structure, the gasket of adjustment gasket intracavity is very convenient, has improved radio frequency cable subassembly production efficiency greatly to it is extravagant to reduce.

Description

Phase-adjustable cable connector

Technical Field

The utility model relates to a radio frequency coaxial cable.

Background

The rapid development of radar technology and the continuous expansion of application fields require certain phase matching precision between each radio frequency component in phase matching systems such as antenna arrays and phased array radars. In order to ensure the phase consistency requirement among the assemblies, the phase matching requirement is provided for the processing of the radio frequency cable assembly. The important factor for determining the phase consistency of the radio frequency cable assemblies is the electrical length, and the phase matching of the two radio frequency cable assemblies indicates that the electrical lengths of the two radio frequency cable assemblies are consistent, theoretically: the parts of the joint are processed on a precise numerical control machine tool, and the errors of the parts produced in the same batch in the length direction are very small, so that the cable components can keep consistent phases under the same test state at the same temperature and humidity as long as the lengths of the cables of the two components keep consistent mechanical length and the dielectric constants of the insulators are consistent.

In the prior art, in the phase matching manufacturing process of the radio frequency cable assembly, the requirements on the cable cutting, welding and other processes are extremely high, the purpose of phase matching is achieved by repeatedly trimming, and once the trimming length is too short, the cable can only be replaced again for debugging and matching, so that great waste is caused.

Disclosure of Invention

The utility model discloses the problem that will solve: in the prior art, in the phase matching manufacturing process of the radio frequency cable assembly, the requirements on the cable cutting, welding and other processes are extremely high, the purpose of phase matching is achieved by repeatedly trimming, and once the trimming length is too short, the cable can only be replaced again for debugging and matching, so that great waste is caused.

In order to solve the above problem, the utility model discloses a scheme as follows:

according to the utility model discloses an adjustable phase cable connector, this connector is used for coaxial cable, including welding set, outer conductor, centre conductor and swivel nut; the welding sleeve is sleeved at the tail end of the coaxial cable and is connected with the outer conductor of the coaxial cable in a welding mode; the outer conductor is arranged on the welding sleeve through a tail sleeve; the center conductor is arranged in the center of the outer conductor through an insulator and is connected with the axis conductor of the coaxial cable; the threaded sleeve is arranged on the outer conductor; the screw sleeve and the central conductor are coaxial and form a plug together with the central conductor; a gasket cavity is arranged between the outer conductor and the welding sleeve; and a plurality of mutually overlapped gaskets for adapting the phase are arranged in the gasket cavities.

Furthermore, according to the phase-adjustable cable connector of the present invention, an outer convex ring is disposed at the front end of the welding sleeve; the outer convex ring is provided with a front end surface at the front end of the coaxial cable, and a clamping step is formed at the rear part of the outer convex ring; the tail sleeve is sleeved on the welding sleeve and is clamped behind the outer convex ring through a clamping step formed behind the outer convex ring.

Furthermore, according to the phase-adjustable cable connector of the utility model, the tail sleeve is provided with an external thread part; the outer conductor is a hollow conductor, the front section is provided with a central conductor installation cavity, the rear section is provided with an internal thread part, an intermediate cavity is arranged between the central conductor installation cavity and the internal thread part, the intermediate cavity and the central conductor installation cavity are separated by an internal convex ring, and the intermediate cavity is provided with an annular gasket surface on the internal convex ring; the outer conductor is fixed with the tail sleeve in a threaded engagement mode through the internal thread part and the external thread part on the tail sleeve.

Further, according to the utility model discloses an adjustable looks cable connector, evagination ring are located middle intracavity for form the gasket chamber between the preceding terminal surface of evagination ring and the annular gasket face.

Further, according to the phase-adjustable cable connector of the present invention, the insulator is disposed in the center conductor mounting cavity; the center conductor is arranged at the center of the insulator, so that the center conductor and the outer conductor are coaxial and are insulated and separated by the insulator.

Further, according to the phase-adjustable cable connector of the present invention, a shaft hole is formed in the center of the rear end of the center conductor; the central conductor is connected with the axial conductor of the coaxial cable through an axial head inserted into the axial hole; the axle center head is a part of the axle center conductor exposed at the tail end and protruding out of the front end face.

Further, according to the phase-adjustable cable connector of the present invention, the outer conductor is provided with an annular groove; the threaded sleeve is connected with the outer conductor through a C-shaped snap ring clamped in the annular groove.

Furthermore, according to the phase-adjustable cable connector of the present invention, the threaded sleeve is provided with a plug cavity with an opening at the front end; the central conductor extends forwards in the plugging cavity and forms a plugging needle head in the plugging cavity; the plug-in needle and the screw sleeve have the same axle center.

The technical effects of the utility model are as follows: the utility model discloses in the phase place matching manufacturing process of radio frequency cable subassembly, the quantity or the thickness of the gasket that only needs the adjusting shim intracavity can realize the purpose of phase place matching, moreover the utility model discloses a under the structure, the gasket of adjusting shim intracavity is very convenient, has improved radio frequency cable subassembly production efficiency greatly to it is extravagant to reduce.

Drawings

Fig. 1 is a schematic half-sectional view along the axis of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic half-sectional view of a weld sleeve portion along an axis according to an embodiment of the present invention.

Fig. 3 is a schematic half-sectional view along the axis of the screw sleeve and the welding sleeve tail sleeve hidden in the embodiment of the present invention.

Wherein 101 is a shaft center conductor, 102 is an

outer layer conductor

102, 103 is an insulating layer, and 104 is an insulating sheath; 111 is a shaft center, 112 is a welding sleeve, 113 is an outer convex ring, 114 is a welding part, 115 is a front end face, 121 is an outer conductor, 122 is a central conductor installation cavity, 123 is an inner threaded part, 124 is an inner convex ring, 125 is a middle cavity, 126 is an annular gasket face, 129 is an annular groove, 131 is a tail sleeve, 132 is an outer threaded part, 133 is a gasket, 134 is an insulator, 141 is a central conductor, 142 is a shaft center hole, 143 is a plug pin, 151 is a screw sleeve, 152 is a plug cavity, and 159 is a C-shaped snap ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2, and 3, a phase-adjustable cable connector for a coaxial cable includes a solder sleeve 112, an outer conductor 121, a tail sleeve 131, an insulator 134, a center conductor 141, and a threaded sleeve 151. The coaxial cable is a four-layer coaxial structure and comprises a shaft center conductor 101, an outer layer conductor 102, an insulating layer 103 and an insulating sheath 104. The axial conductor 101 is located at the innermost layer and is covered by an insulating layer 103, an outer conductor 102 is located outside the insulating layer 103, and an insulating sheath 104 is located outside the outer conductor 102. The core conductor 101 and the outer conductor 102 are insulated and isolated by an insulating layer 103.

The solder sleeve 112 is fitted over the end of the coaxial cable and is connected to the outer conductor 102 of the coaxial cable by soldering, and more specifically, the solder sleeve 112 is soldered to the outer conductor 102 by the solder of the soldering portion 114. The front end of the welding sleeve 112 is provided with an outer convex ring 113. The outer ring 113 has a front end surface 115 at the front end of the coaxial cable, and a locking step is formed at the rear. The tail sleeve 131 is sleeved on the welding sleeve 112 and clamped behind the outer convex ring 113 through a clamping step formed behind the outer convex ring 113. The tail sleeve 131 is provided with an external thread part 132. The external thread portion 132 is provided with an external thread. A shaft head 111 is provided at the tip of the shaft conductor 101. The axial head 111 is a portion of the axial conductor 101 of the coaxial cable exposed at the end and protruding from the distal end surface 115.

The outer conductor 121 is a hollow conductor having a central conductor mounting cavity 122 at a front section and an internally threaded portion 123 at a rear section, an intermediate cavity 125 between the central conductor mounting cavity 122 and the internally threaded portion 123, the intermediate cavity 125 and the central conductor mounting cavity 122 being separated by an internal collar 124, and the intermediate cavity 125 having an annular gasket surface 126 on the internal collar 124. The internal thread portion 123 is provided with an internal thread. The outer conductor 121 is mounted on the welding sleeve 112 via the tail sleeve 131, and specifically, the outer conductor 121 is fixed to the tail sleeve 131 in a threaded engagement with an external thread 132 on the tail sleeve 131 via an internal thread 123. The outer male ring 113 is positioned within the intermediate cavity 125 such that a shim cavity between the outer conductor 121 and the weld nest 112 is formed between the front face 115 of the outer male ring 113 and the annular shim face 126. The gasket cavity is provided with a plurality of mutually overlapped gaskets 133 for phase adaptation.

The center conductor 141 is disposed at the center of the outer conductor 121 via an insulator 134, and more specifically, the insulator 134 is disposed in the center conductor mounting cavity 122 of the outer conductor 121. Center conductor 141 is centered on insulator 134 such that center conductor 141 and outer conductor 121 are coaxial and are insulated from each other by insulator 134. The center conductor 141 is connected to the axial center conductor 101 of the coaxial cable, specifically, the center of the rear end of the center conductor 141 is provided with an axial center hole 142, and the center conductor 141 is connected to the axial center conductor 101 of the coaxial cable through an axial center head 111 inserted into the axial center hole 142. The spacer 133 is an annular piece having a center hole, and when the axial conductor 101 is connected to the center conductor 141, the axial head 111 passes through the center hole of the spacer 133 and is naturally insulated and isolated from the edge of the center hole by a gap. The hub head 111 also passes through the central aperture of the inner collar 124 and is naturally insulated from the spacing between the edges of the central aperture.

The threaded sleeve 151 is mounted on the outer conductor 121. Specifically, the outer conductor 121 is provided with an annular groove 129; the threaded sleeve 151 is connected to the outer conductor 121 by a C-shaped snap ring 159 captured in the annular groove 129. The screw sleeve 151 is provided with a socket cavity 152 with an open front end. The center conductor 141 extends forwardly of the connector cavity 152 and forms a connector pin 143 within the connector cavity 152. The connector pin head 143 is coaxial with the threaded sleeve 151 such that the threaded sleeve 151 is coaxial with the center conductor 141 and forms a connector with the center conductor 141.

The working principle of the phase adjustment in the embodiment is as follows: the outer conductor 121 and the coaxial cable are connected in a threaded engagement mode between the outer conductor 121 and the tail sleeve 131, so that the outer conductor 121 is quite convenient to disassemble, and after the outer conductor 121 and the coaxial cable are disassembled, the gasket 133 can be placed in the middle cavity 125 and then assembled with the coaxial cable into a whole. If the cable phase requires the cable to change length, only the number or thickness of the shims 133 in the shim cavity needs to be adjusted.

Claims

1. A phase adjustable cable connector for a coaxial cable, comprising a solder sleeve (112), an outer conductor (121), a center conductor (141), and a threaded sleeve (151); the welding sleeve (112) is sleeved at the tail end of the coaxial cable and is connected with the outer conductor (102) of the coaxial cable in a welding mode; the outer conductor (121) is arranged on the welding sleeve (112) through a tail sleeve (131); a central conductor (141) is arranged in the center of the outer conductor (121) through an insulator (134) and is connected with the axial center conductor (101) of the coaxial cable; the screw sleeve (151) is arranged on the outer conductor (121); the screw sleeve (151) and the central conductor (141) are coaxial and form a plug together with the central conductor (141); a gasket cavity is arranged between the outer conductor (121) and the welding sleeve (112); the gasket cavity is internally provided with a plurality of mutually overlapped gaskets (133) for phase adaptation.

2. Phase-adjustable cable connector according to claim 1, wherein the front end of the welding sleeve (112) is provided with an external protruding ring (113); the front end of the coaxial cable is provided with a front end surface (115) by the outer convex ring (113), and a clamping step is formed at the rear part of the outer convex ring; the tail sleeve (131) is sleeved on the welding sleeve (112) and is clamped behind the outer convex ring (113) through a clamping step formed behind the outer convex ring (113).

3. Phase-adjustable cable connector according to claim 2, wherein the tail sleeve (131) is provided with an external thread portion (132); the outer conductor (121) is a hollow conductor, the front section is provided with a central conductor installation cavity (122), the rear section is provided with an internal thread part (123), an intermediate cavity (125) is arranged between the central conductor installation cavity (122) and the internal thread part (123), the intermediate cavity (125) and the central conductor installation cavity (122) are separated by an inner convex ring (124), and the intermediate cavity (125) is provided with an annular gasket surface (126) on the inner convex ring (124); the outer conductor (121) is fixed to the tail sleeve (131) by a threaded engagement between the female screw (123) and a male screw (132) on the tail sleeve (131).

4. Phase-tunable cable connector according to claim 3, wherein the male ring (113) is located in the intermediate cavity (125) such that a gasket cavity is formed between the front end face (115) of the male ring (113) and the annular gasket face (126).

5. The phase tunable cable connector of claim 3, wherein the insulator (134) is disposed within the center conductor mounting cavity (122); the central conductor (141) is arranged in the center of the insulator (134) so that the central conductor (141) and the outer conductor (121) are coaxial and are insulated and separated by the insulator (134).

6. Phase-adjustable cable connector according to claim 1, wherein the center of the rear end of the center conductor (141) is provided with a center hole (142); a center conductor (141) connected to a center conductor (101) of the coaxial cable via a center head (111) inserted into a center hole (142); the axial head (111) is a portion of the axial conductor (101) exposed at the end and protruding from the front end surface (115).

7. Phase-adjustable cable connector according to claim 1, wherein the outer conductor (121) is provided with an annular groove (129); the threaded sleeve (151) is connected to the outer conductor (121) by a C-shaped snap ring (159) captured within the annular groove (129).

8. Phase-adjustable cable connector according to claim 1, wherein the threaded sleeve (151) is provided with a socket cavity (152) open at the front end; the central conductor (141) extends forwards in the plug cavity (152) and forms a plug needle head (143) in the plug cavity (152); the inserting needle head (143) and the screw sleeve (151) are coaxial.