CN216903371U

CN216903371U - Wiring connector with welding-free anti-vibration structure for inner conductor

Info

Publication number: CN216903371U
Application number: CN202220229823.1U
Authority: CN
Inventors: 胡新玲; 李伟锋
Original assignee: Shaanxi Citic Electromechanical Co ltd
Current assignee: Shaanxi Citic Electromechanical Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-07-05
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a wiring connector with an inner conductor having a welding-free anti-vibration structure, which comprises an outer conductor, wherein an insulating medium is arranged between the outer conductor and the inner conductor; the inner conductor comprises a central conductor and a locking sleeve; an inner hole is formed in the right end of the central conductor along the central axis, a bulge is arranged on the inner wall of the inner hole, and external threads are arranged on the periphery of the inner hole; the center of the inner cavity of the locking sleeve is provided with an internal thread, an inclined plane positioned outside the central conductor at the raised position and a guide hole. The cable core wire is inserted into the inner hole in the central conductor and then is contacted with the protrusion, so that electrical conduction is realized, under the action of external force, the internal thread on the locking sleeve is meshed with the external thread on the central conductor, the locking sleeve moves leftwards, the excircle circumference of the right end of the central conductor is tightened by the inclined plane on the locking sleeve, so that the protrusion on the central conductor clamps the cable core wire, and the electrical conduction and mechanical fastening of the cable core wire and the inner conductor of the electric connector are realized. The fastening mode of the utility model has strong vibration resistance, stable performance, high reliability and convenient and quick connection.

Description

Wiring connector with welding-free anti-vibration structure for inner conductor

Technical Field

The utility model belongs to the technical field of electric connectors, and particularly relates to a wiring connector with an inner conductor having a welding-free anti-vibration structure.

Background

At present, according to different cable structures, different use places and different installation sites, a plurality of ways for connecting cables in the electric connector are provided, and various ways are widely applied to the industry, and good electrical performance, mechanical performance and environmental resistance are obtained in practical application.

At present, the most connection mode of the cable core wire and the inner conductor of the electric connector is a welding structure, the welding structure has stable performance and high reliability, but the mode is not suitable for outdoor operation and field installation, and welding can not be realized because power supplies and special equipment are often lacked outdoors and on the field, and the soldering tin wire can not be melted without the power supplies and the special equipment. Secondly, the connection structure is convenient and reliable, the connection mode is convenient and reliable, the outer circumference of the inner conductor of the electric connector is generally extruded by a tool to be physically deformed so as to achieve the connection of the cable core wire and the inner conductor of the electric connector, and the shape of the inner conductor can be permanently deformed and irreversible, so that the electrical performance of a product is influenced to a certain extent; the cable core wire is inserted into the tail hole of the inner conductor with certain elastic function in the electric connector, and the connection between the cable core wire and the tail hole of the inner conductor is realized through elastic contact. The solution to the problem of outdoor installation of such thicker cables or applications in vibration environments is particularly urgent.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the wiring connector with the inner conductor having the welding-free anti-vibration structure, and the connector has the characteristics of no need of special tools, professional operation and welding, quick installation, convenient operation, high production efficiency, strong anti-vibration performance and high reliability no matter the connector is operated in a factory or outdoors.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a wiring connector with an inner conductor having a welding-free and vibration-resistant structure comprises an outer conductor 22, an inner conductor 20 arranged at the center of an inner cavity of the outer conductor 22, and an insulating medium 21 arranged between the outer conductor 22 and the inner conductor 20, wherein a cable 15 is connected with the right end of the inner conductor 20;

the inner conductor 20 comprises a central conductor 1 and a locking sleeve 8 sleeved at the right end of the central conductor 1;

an inner hole 4 is formed in the right end of the central conductor 1 along the central axis, a protrusion 5 which is in contact with a cable core 16 is arranged on the inner wall of an outlet of the inner hole 4, an external thread 2 is arranged on the peripheral circumference of the inner hole 4 of the central conductor 1, a first end face 3 is arranged at the left end of the external thread 2, and a groove 6 is axially arranged on the right end face of the central conductor 1, so that the inner hole 4 has elasticity in the radial direction;

an inner thread 9, an inclined plane 10 and a guide hole 11 are sequentially arranged in the center of an inner cavity of the locking sleeve 8 from left to right, wherein the inner thread 9 is meshed with an outer thread 2 on the central conductor 1, the inclined plane 10 is positioned outside the central conductor 1 at the position of the protrusion 5, the outer side of the right end of the locking sleeve 8 is a second end face 12, and the outer side of the left end of the locking sleeve is a third end face 14.

Preferably, the cable 15 includes a cable core 16, an insulator 17, a shielding layer 19, and a fourth end surface 18 disposed on the left side of the insulator 17.

Preferably, the outer side of the left end of the central conductor 1 is provided with a tool groove 7, and the periphery of the locking sleeve 8 is provided with a wrench groove 13, so that external force can be conveniently applied.

Preferably, the inner wall of the outlet of the inner hole 4 of the central conductor 1 is provided with at least one protrusion 5, and the inner cavity of the locking sleeve 8 is provided with at least one inclined surface 10, so as to facilitate the clamping of the cable core.

Because the cable core 16 on the cable 15 of the utility model is inserted into the inner hole 4 in the central conductor 1 and then contacts with the bulge 5, the electrical conduction is realized, under the action of external force, the internal thread 9 on the locking sleeve 8 is meshed with the external thread 2 on the central conductor 1, along with the continuous meshing of the two sections of matching threads, the locking sleeve 8 gradually moves leftwards, the excircle circumference at the right end of the central conductor 1 is tightened by the inclined plane 10 on the locking sleeve 8, so that the bulge 5 on the central conductor 1 clamps the cable core 16 from the radial circumference, and the electrical conduction and the mechanical fastening of the cable core 16 and the inner conductor 20 of the electric connector are realized. The fastening mode has the advantages of strong vibration resistance, stable electrical performance, no need of welding equipment or professional personnel, simple structure, convenient operation and easy production.

Drawings

Fig. 1 is a front sectional view of the present invention.

Fig. 2 is a schematic structural diagram of the center conductor of the present invention.

Fig. 3 is a schematic structural view of the locking sleeve of the present invention.

Fig. 4 is a schematic structural view of the cable of the present invention.

Fig. 5 is a schematic view of the installation of the inner conductor and the cable core of the present invention.

Fig. 6 is a schematic view of the locking of the inner conductor to the cable core of the present invention.

In the figure: 1 is a central conductor, 2 is an external thread, 3 is a first end face, 4 is an inner hole, 5 is a protrusion, 6 is a groove, 7 is a tool groove, 8 is a locking sleeve, 9 is an internal thread, 10 is an inclined plane, 11 is a guide hole, 12 is a second end face, 13 is a wrench groove, 14 is a third end face, 15 is a cable, 16 is a cable core wire, 17 is an insulator, 18 is a fourth end face, 19 is a shielding layer, 20 is an inner conductor, 21 is an insulating medium, and 22 is an outer conductor.

Detailed Description

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

Referring to fig. 1, a wire connector having an inner conductor with a solderless anti-vibration structure includes an outer conductor 22, an inner conductor 20 disposed at the center of an inner cavity of the outer conductor 22, and an insulating medium 21 disposed between the outer conductor 22 and the inner conductor 20, wherein a cable 15 is connected to a right end of the inner conductor 20.

Referring to fig. 6, the inner conductor 20 includes a center conductor 1 and a locking sleeve 8 fitted around a right end of the center conductor 1.

Referring to fig. 2, the central conductor 1 includes, the left end outside is provided with tool groove 7, the right-hand member of central conductor 1 is opened along the central axis has hole 4, be provided with arch 5 with 16 contacts of cable conductor on the export inner wall of hole 4, be provided with external screw thread 2 on the peripheral circumference that lies in hole 4 on the central conductor 1, the left end of external screw thread 2 is provided with first terminal surface 3, central conductor 1 is provided with groove 6 along the axial from the right-hand member face.

Referring to fig. 3, the locking sleeve 8 includes an inner cavity center provided with an internal thread 9, an inclined plane 10 and a guide hole 11 in sequence from left to right, wherein the internal thread 9 is engaged with the external thread 2 on the central conductor 1, the inclined plane 10 is located outside the central conductor 1 at the position of the protrusion 5, the outer side of the right end of the locking sleeve 8 is a second end surface 12, the outer side of the left end is a third end surface 14, and a wrench groove 13 is provided on the periphery circumference.

Referring to fig. 4, the cable 15 includes a cable core 16, an insulator 17, a shielding layer 19, and a fourth end surface 18 provided on the left side of the insulator 17.

The working principle of the utility model is as follows:

referring to fig. 5, the locking sleeve 8 and the central conductor 1 have the same central axis and are located on the periphery of the right end of the central conductor 1, when an external force pushes the cable 15, the cable core 16 enters the inner hole 4 through the guide hole 11, in addition, the central conductor 1 is provided with the groove 6 along the axial direction from the right end face, so that the inner hole 4 has certain elasticity in the radial direction, the cable core 16 is in close contact with the protrusion 5, the electric conduction is realized, the cable 15 is continuously pushed at the moment, when the fourth end face 18 and the second end face 12 are overlapped, the cable core 16 is inserted in place, and the installation of the inner conductor 20 and the cable core 16 is completed. If an external force acts on the tool groove 7 and the wrench groove 13 at the same time, the external thread 2 is meshed with the internal thread 9, the locking sleeve 8 gradually moves leftwards along with the continuous meshing of the two sections of matched threads, and referring to fig. 6, when the third end face 14 is overlapped with the first end face 3, the excircle circumference of the right end of the central conductor 1 is tightened by the inclined face 10, so that the bulge 5 clamps the cable core 16 from the radial circumference, and the electrical conduction and the mechanical fastening of the cable core 16 and the inner conductor 20 of the electric connector are realized. Referring to fig. 1, the connection of the terminal connector having the inner conductor of the utility model with a solderless anti-vibration structure to the cable is accomplished by passing the inner conductor 20, to which the cable core 16 is attached and fastened, from the outer conductor 22 of the electrical connector along the central axis from right to left and into the insulating medium 21.

The fastening mode of the cable core wire does not need special equipment or special tools or welding, and has the advantages of convenient and quick connection, strong vibration resistance, reliable connection, stable performance and high efficiency.

Claims

1. A wiring connector with an inner conductor having a welding-free anti-vibration structure comprises an outer conductor (22), an inner conductor (20) arranged in the center of an inner cavity of the outer conductor (22), and an insulating medium (21) arranged between the outer conductor (22) and the inner conductor (20), wherein the right end of the inner conductor (20) is connected with a cable (15);

the method is characterized in that: the inner conductor (20) comprises a central conductor (1) and a locking sleeve (8) sleeved at the right end of the central conductor (1);

an inner hole (4) is formed in the right end of the central conductor (1) along the central axis, a protrusion (5) which is in contact with a cable core wire (16) is arranged on the inner wall of an outlet of the inner hole (4), an external thread (2) is arranged on the peripheral circumference of the inner hole (4) of the central conductor (1), a first end face (3) is arranged at the left end of the external thread (2), and a groove (6) is axially arranged on the central conductor (1) from the right end face, so that the inner hole (4) has elasticity in the radial direction;

internal thread (9), inclined plane (10) and guiding hole (11) have set gradually from a left side to a right side in lock sleeve (8) inner chamber center, and wherein external screw thread (2) meshing on internal thread (9) and central conductor (1), inclined plane (10) are located central conductor (1) outside protruding (5) position department, and the outside of lock sleeve (8) right-hand member is second terminal surface (12), and the left end outside is third terminal surface (14).

2. A wiring connector with a solderless anti-vibration structure of an inner conductor according to claim 1, characterized in that the cable (15) comprises a cable core (16), an insulator (17), a shielding layer (19), and a fourth end face (18) is arranged at the left side of the insulator (17).

3. The connector for connecting wires with solder-free and vibration-resistant structure of inner conductor according to claim 1, wherein the central conductor (1) is provided with a tool groove (7) at the outside of the left end, and the locking sleeve (8) is provided with a wrench groove (13) at the periphery for applying external force.

4. A connector for connecting wires with solder-free and vibration-resistant structure of inner conductor according to claim 1, wherein the inner wall of the outlet of the inner hole (4) of the central conductor (1) has at least one protrusion (5), and the inner cavity of the locking sleeve (8) has at least one inclined surface (10).