Cable connector

Abstract

The utility model discloses a cable connector, which comprises a socket body, a terminal assembly accommodated in the socket body, a cable backwards extending out of the socket body and a metal riveting piece, the socket body is provided with a fixing hole backwards extending and penetrating through the rear end face, and the rear end of the terminal assembly is positioned in the fixing hole. The front end of the cable is connected to the rear end of the terminal assembly, and the riveting piece is riveted to the joint of the terminal assembly and the cable. The cable connector further comprises an elastic plastic plug arranged on the periphery of the riveting piece in a sleeving mode, and at least part of the plastic plug is inserted into the fixing hole so as to fill the gap between the socket body and the riveting piece. A plastic plug is assembled to a riveting piece and then assembled to a socket body, so that a gap between the socket body and the riveting piece is reduced, and when a cable is shaken, the shaking of a terminal assembly is remarkably reduced, thereby improving the coaxiality.

Description

Technical Field

[0001] The utility model relates to an automobile connector, in particular to a cable connector with good coaxiality. Background Art

[0002] FAKRA (FachkreisAutomobil) coaxial cable connector is a high-frequency connector system specially designed for the automotive industry to achieve high-frequency signal transmission in automotive electronic systems. FAKRA connectors are commonly used in GPS navigation systems, satellite radios, antennas and other in-vehicle communication and entertainment systems that require high-frequency signal transmission. The FAKRA connector system mainly includes FAKRA connectors, FAKRA Inline connectors, coaxial cables and PCB board connectors. These components work together to ensure reliable data transmission in the complex electronic environment of the car.

[0003] However, after the finished product is assembled, since the tail size of the connector plastic shell is larger than the wire clamp size, and there is a tolerance between the semi-finished terminal and the plastic shell, when the cable is shaken, the terminal will shake inside the plastic shell, which will also affect the coaxiality.

[0004] Therefore, it is hoped to provide a new cable connector to overcome the above defects. Utility Model Content

[0005] The utility model aims to provide a cable connector with a plastic plug, wherein the plastic plug can reduce the shaking of the terminal when the cable is rotated, thereby improving the coaxiality problem.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a cable connector, comprising a socket body, a terminal assembly accommodated in the socket body, a cable extending backward from the socket body, and a metal rivet, the socket body is provided with a fixing hole extending backward through the rear end surface of the socket body, the rear end of the terminal assembly is located in the fixing hole, the front end of the cable is connected to the rear end of the terminal assembly, and the rivet is riveted to the connection between the terminal assembly and the cable. The cable connector also includes an elastic plastic plug sleeved on the outer periphery of the rivet, and the plastic plug is at least partially inserted into the fixing hole to fill the gap between the socket body and the rivet.

[0007] In a preferred embodiment, the plastic plug is provided with an annular main body and a stopper protruding outward from the rear end outer edge of the main body, the main body is inserted into the fixing hole, and the stopper abuts against the rear end surface of the socket body.

[0008] In a preferred embodiment, the plastic plug is provided with a cutting groove which penetrates the main body and the stopper portion along the axial direction to form a non-closed loop peripheral wall.

[0009] In a preferred embodiment, the plastic plug is provided with a groove formed by depression from the inner wall surface, the thickness of the peripheral wall at the groove is smaller than the thickness of the peripheral wall at other positions, and the groove extends axially and is arranged corresponding to the cutting groove.

[0010] In a preferred embodiment, the socket body is provided with an insertion hole that penetrates forward through the front end face of the socket body, the insertion hole is connected to the fixing hole, the terminal assembly includes an inner conductive terminal, an outer conductive terminal, an inner insulator and an outer insulator, the inner insulator is located between the inner conductive terminal and the outer conductive terminal to separate the inner conductive terminal from the outer conductive terminal, and the outer insulator is sleeved on the outer side of the outer conductive terminal and inserted into the fixing hole.

[0011] In a preferred embodiment, the external conductive terminal is provided with an external contact arm located at the front end and an external connecting portion located at the rear end, the external contact arm protrudes into the plug hole, the external connecting portion extends into the fixing hole and is connected to the cable, and the rivet is riveted to the external connecting portion and the cable.

[0012] In a preferred embodiment, the cable includes a conductor, an insulator, a metal braided layer and an insulating sheath, the rear end of the inner conductive terminal is connected to the conductor, the insulator wraps the conductor, the braided layer is between the insulator and the insulating sheath, and the front end of the braided layer is clamped and fixed between the external connection part and the rivet.

[0013] In a preferred embodiment, the riveting member is provided with a front riveting portion and a rear riveting portion connected front and back, the front riveting portion is riveted to the outer connecting portion and the braided layer, and the rear riveting portion is riveted to the insulating outer sheath of the cable.

[0014] In a preferred embodiment, the socket body is provided with a top wall, a bottom wall and two side walls surrounding the plug-in hole and the fixing hole, and the side wall is provided with a hollow opening that passes through the side wall laterally, and the hollow opening is connected to the fixing hole; the cable connector also includes a positioning piece, and the positioning piece is inserted from the hollow opening and fixed on the socket body.

[0015] In a preferred embodiment, the outer insulator is provided with an annular front positioning groove and a rear positioning groove, the front positioning groove and the rear positioning groove are separated front and back, the side wall is provided with an elastic stop arm extending into the fixing hole, the positioning piece passes through the hollow opening and is buckled in the front positioning groove, and the stop arm is clamped in the rear positioning groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the cable connector also includes an elastic plastic plug sleeved on the outer periphery of the rivet, and the plastic plug is at least partially inserted into the fixing hole to fill the gap between the socket body and the rivet; the plastic plug is assembled to the rivet and then assembled to the socket body, thereby reducing the gap between the socket body and the rivet, and when the cable is shaken, the shaking of the terminal assembly is significantly reduced, thereby improving the coaxiality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a cable connector in a preferred embodiment of the utility model.

[0018] Figure 2 yes Figure 1 A partially exploded view of the cable connector is shown.

[0019] Figure 3 yes Figure 1 A side view of the cable connector is shown.

[0020] Figure 4 yes Figure 3 A cross-sectional view of a cable connector is shown.

[0021] Figure 5 yes Figure 2 A three-dimensional schematic diagram of a plastic plug in a cable connector is shown. DETAILED DESCRIPTION

[0022] See also Figures 1 to 5 As shown, a preferred embodiment of the utility model discloses a cable connector 100, which is mainly used in high-frequency connector systems in the automotive industry to realize high-frequency signal transmission in automotive electronic systems. The cable connector 100 includes a socket body 10, a terminal assembly 20 accommodated in the socket body 10, a cable 30 extending backward from the socket body 20, and a metal rivet 40. The cable 30 is connected to the rear end of the terminal assembly 20, and the rivet 40 is riveted to the connection between the terminal assembly 20 and the cable 30.

[0023] See also Figure 2 and Figure 4 As shown, the socket body 10 is a front-to-back through structure, which is provided with a plug hole 101 penetrating forward through the front end face of the socket body 10 and a fixing hole 102 extending backward through the rear end face of the socket body 10, and the plug hole 101 is connected to the fixing hole 102. The front end of the terminal assembly 20 is located in the plug hole 101, and the rear end of the terminal assembly 20 is located in the fixing hole 102, and the front end of the cable 30 is received in the fixing hole 102 and connected to the rear end of the terminal assembly 20.

[0024] The socket body 10 is also provided with a top wall 11, a bottom wall 12, two side walls 13 and a positioning member 14 surrounding the plug hole 101 and the fixing hole 102. The top wall 11 is provided with a locking arm (not numbered) to lock the docking connector to prevent accidental unplugging and bring potential safety hazards. One of the side walls 13 is provided with a hollow opening 130 that passes through the side wall 13 laterally. The hollow opening 130 is connected to the fixing hole 102. The positioning member 14 is inserted from the hollow opening 130 and fixed on the socket body 10.

[0025] The terminal assembly 20 includes an inner conductive terminal 21, an outer conductive terminal 22, an inner insulator 23 and an outer insulator 24. The inner conductive terminal 21 and the inner insulator 23 are received in the outer conductive terminal 22, and the inner insulator 23 is sleeved on the outer side of the inner conductive terminal 21, that is, the inner insulator 23 is between the inner conductive terminal 21 and the outer conductive terminal 22 to separate the inner conductive terminal 21 and the outer conductive terminal 22.

[0026] The inner conductive terminal 21 is a long strip extending forward and backward and is provided with an inner contact arm (not numbered) at the front end and an inner connecting portion (not numbered) at the rear end. The inner contact arm is located in the inner insulator 23, and the inner connecting portion is riveted together with the conductor 31 of the cable 30 to achieve electrical connection. The outer conductive terminal 22 is a tubular structure extending forward and backward made by a drawing molding process and is provided with an outer contact arm 221 at the front end and an outer connecting portion 222 at the rear end; the outer contact arm 221 surrounds the outer side of the inner insulator 23 and protrudes into the plug hole 101, and the outer connecting portion 222 extends into the fixing hole 102 and is connected to the cable 30.

[0027] The outer insulator 24 is sleeved on the outer side of the outer conductive terminal 22 and inserted into the fixing hole 102. The outer insulator 24 is provided with an annular front positioning groove 241 and a rear positioning groove 242 located on the outer surface, and the front positioning groove 241 and the rear positioning groove 242 are spaced apart from each other. The side wall 13 is provided with an elastic stop arm 131 extending into the fixing hole 102. The positioning member 14 passes through the hollow opening 130 and is buckled in the front positioning groove 241. The stop arm 131 is engaged in the rear positioning groove 242 to facilitate the locking and locking positioning, thereby preventing the terminal assembly 20 from being separated from the socket body 10. At the same time, the outer conductive terminal 22 protrudes forward from the outer insulator 24, and the plug-in hole 101 is provided with a protrusion 103 located on the inner wall, and the protrusion 103 is abutted against the front end surface of the outer insulator 24 backward to prevent the terminal assembly 20 from moving forward.

[0028] The rivet 40 is riveted to the outer connection part 222 and the cable 30. The cable 30 includes a conductor 31, an insulator 32, a metal braided layer 33 and an insulating outer skin 34. The inner connection part of the inner conductive terminal 21 is connected to the conductor 31, the insulator 32 wraps the conductor 31, the braided layer 33 is between the insulator 32 and the insulating outer skin 34, and the front end of the braided layer 33 is clamped and fixed between the outer connection part 222 and the rivet 40. The rivet 40 is provided with a front riveted part 41 and a rear riveted part 42 connected front and back, the front riveted part 41 is riveted to the outer connection part 222 and the braided layer 33, and the rear riveted part 42 is riveted to the insulating outer skin 34 of the cable 30.

[0029] Combination Figure 5 As shown, the cable connector 100 further includes an elastic plastic plug 50 sleeved on the outer periphery of the rivet 40, and the plastic plug 50 is at least partially inserted into the fixing hole 102 to fill the gap between the socket body 10 and the rivet 40. The plastic plug 50 is assembled to the rivet 40 and then assembled to the socket body 10, thereby reducing the gap between the socket body 10 and the rivet 40. When the cable 30 is shaken, the shaking of the terminal assembly 20 is significantly reduced, thereby improving the coaxiality.

[0030] Specifically, the plastic plug 50 is provided with an annular main body 51 and a stopper 52 protruding outward from the outer edge of the rear end of the main body 51. The main body 51 is inserted into the fixing hole 102, and the stopper 52 is against the rear end surface of the socket body 10. The plastic plug 50 is also provided with a cutting groove 53 axially penetrating the main body 51 and the stopper 52 and a groove 54 formed by the inner wall surface to form a non-closed loop peripheral wall, which is convenient for the deformation of the plastic plug 50 to be inserted into the fixing hole 102 of the socket body 10 to form a stable fixation. The peripheral wall thickness at the groove 54 is less than the peripheral wall thickness at other positions. The groove 54 extends axially and is arranged corresponding to the cutting groove 53, so that the plastic plug 50 has a larger deformation angle.

[0031] In the utility model, the cable connector 100 also includes an elastic plastic plug 50 sleeved on the outer periphery of the rivet 40, and the plastic plug 50 is at least partially inserted into the fixing hole 102 to fill the gap between the socket body 10 and the rivet 40; the plastic plug 50 is assembled to the rivet 40 and then assembled to the socket body 10, thereby, the gap between the socket body 10 and the rivet 40 is reduced, and when the cable 30 is shaken, the shaking of the terminal assembly 20 is significantly reduced, thereby improving the coaxiality.

[0032] In summary, the above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and description of the present invention should still fall within the scope of the present invention.

Claims

1. A cable connector, comprising a socket body, a terminal assembly received in the socket body, a cable extending backward from the socket body, and a metal rivet, wherein the socket body is provided with a fixing hole extending backward through a rear end surface of the socket body, the rear end of the terminal assembly is located in the fixing hole, the front end of the cable is connected to the rear end of the terminal assembly, and the rivet is riveted to the connection between the terminal assembly and the cable; characterized in that: The cable connector further comprises an elastic plastic plug sleeved on the outer periphery of the rivet, and the plastic plug is at least partially inserted into the fixing hole to fill the gap between the socket body and the rivet.

2. The cable connector according to claim 1, wherein: The plastic plug is provided with an annular main body and a stopper protruding outward from the rear end outer edge of the main body, the main body is inserted into the fixing hole, and the stopper abuts against the rear end surface of the socket body.

3. The cable connector according to claim 2, wherein: The plastic plug is provided with a cutting groove which penetrates the main body and the stopper along the axial direction to form a non-closed loop peripheral wall.

4. The cable connector according to claim 3, wherein: The plastic plug is provided with a groove formed by depression from the inner wall surface, the peripheral wall thickness at the groove is smaller than the peripheral wall thickness at other positions, and the groove extends axially and is arranged corresponding to the cutting groove.

5. The cable connector according to claim 1, wherein: The socket body is provided with an insertion hole which penetrates forward through the front end surface of the socket body, and the insertion hole is connected to the fixing hole. The terminal assembly includes an inner conductive terminal, an outer conductive terminal, an inner insulator and an outer insulator. The inner insulator is disposed between the inner conductive terminal and the outer conductive terminal to separate the inner conductive terminal and the outer conductive terminal. The outer insulator is sleeved on the outer side of the outer conductive terminal and inserted into the fixing hole.

6. The cable connector according to claim 5, wherein: The external conductive terminal is provided with an external contact arm at the front end and an external connecting portion at the rear end, the external contact arm protrudes into the plug hole, the external connecting portion extends into the fixing hole and is connected to the cable, and the rivet is riveted to the external connecting portion and the cable.

7. The cable connector according to claim 6, wherein: The cable includes a conductor, an insulator, a metal braided layer and an insulating sheath. The rear end of the inner conductive terminal is connected to the conductor. The insulator wraps the conductor. The braided layer is between the insulator and the insulating sheath. The front end of the braided layer is clamped and fixed between the external connection part and the rivet.

8. The cable connector according to claim 7, wherein: The riveting member is provided with a front riveting portion and a rear riveting portion connected front and back, the front riveting portion is riveted to the outer connecting portion and the braided layer, and the rear riveting portion is riveted to the insulating outer sheath of the cable.

9. The cable connector according to claim 5, wherein: The socket body is provided with a top wall, a bottom wall and two side walls surrounding the plug-in hole and the fixing hole, and the side wall is provided with a hollow opening that passes through the side wall laterally, and the hollow opening is connected to the fixing hole; the cable connector also includes a positioning piece, which is inserted from the hollow opening and fixed on the socket body.

10. The cable connector according to claim 9, wherein: The outer insulator is provided with an annular front positioning groove and a rear positioning groove, the front positioning groove and the rear positioning groove are spaced front and back, the side wall is provided with an elastic stop arm extending into the fixing hole, the positioning piece passes through the hollow opening and is buckled in the front positioning groove, and the stop arm is clamped in the rear positioning groove.

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