Fakra wire end socket connector

Abstract

The utility model discloses a Fakra wire end socket connector, which comprises an inner conductor, an inner insulator, an outer conductor, a butt joint seat, a cable and an insulating ring, the inner conductor is accommodated in the inner insulator, the outer conductor is sleeved outside the inner insulator, and the butt joint seat is provided with an outer plug hole for accommodating the outer conductor. The cable sequentially comprises a conductive core wire, an inner insulating layer, a metal shielding layer and an insulating sheath from inside to outside, the upper end of the conductive core wire is exposed out of the inner insulating layer, the upper end of the inner insulating layer is exposed out of the metal shielding layer, the upper end of the metal shielding layer is exposed out of the insulating sheath, the conductive core wire is riveted with the inner conductor, and the metal shielding layer is electrically connected with the outer conductor. And the insulating ring is sleeved outside the upper end of the inner insulating layer and separates the conductive core wire from the metal shielding layer. According to the Fakra wire end socket connector, the top of the cable is sleeved with the insulating ring, so that the conductive core wire and the metal shielding layer of the cable can be separated, and short circuit between the inner conductor and the outer conductor is avoided.

Description

Technical Field

[0001] The utility model relates to a Fakra wire-end socket connector. Background Art

[0002] The main application fields of electrical connectors include transportation, communication, network, IT, medical, household appliances, military electronic products, etc. The rapid development of product technology level and the rapid growth of its market in the application fields strongly drive the development of electrical connector technology. So far, electrical connectors have developed into a series of and specialized products with complete product categories, rich variety specifications, diverse structural forms, detailed professional directions, obvious industry characteristics, and standardized standard systems.

[0003] The Fakra connector is a standard connector in the existing automotive electronics industry. In order to meet the generality, the interface standard of the connector is standardized. The existing FAKRA socket connector generally includes components such as an inner conductor, an inner insulator, an outer conductor, an outer insulator, and a cable. The inner insulator is between the inner conductor and the outer conductor. The inner insulator is provided with a central jack, and the inner conductor is provided with an inner docking portion located in the inner jack; the outer insulator is provided with an outer jack, and the outer conductor is provided with an outer docking portion located in the outer jack. The cable includes a conductive core wire, an inner insulating layer, a metal shielding layer, and an insulating outer skin from the inside out. The inner conductor is riveted to the conductive core wire of the cable, and the outer conductor is riveted to the metal shielding layer. When the metal shielding layer is riveted, its braided wires are prone to looseness, and some braided wires will extend upward and accidentally touch the conductive core wire, resulting in a short circuit between the inner conductor and the outer conductor, affecting the normal use of the Fakra connector. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a Fakra wire-end socket connector that avoids short circuit between the inner conductor and the outer conductor.

[0005] To achieve the foregoing purpose, the utility model adopts the following technical solution: A Fakra wire-end socket connector, which includes an inner conductor, an inner insulator, an outer conductor, an insulating housing, and a cable. The inner insulator houses the inner conductor, the outer conductor is sleeved outside the inner insulator, the insulating housing is provided with an outer insertion hole for housing the outer conductor, and further includes an insulating ring. The cable includes a conductive core wire, an inner insulating layer, a metal shielding layer, and an insulating outer skin from the inside out. The upper end of the conductive core wire exposes the inner insulating layer, the upper end of the inner insulating layer exposes the metal shielding layer, and the upper end of the metal shielding layer exposes the insulating outer skin. Among them, the conductive core wire is riveted to the inner conductor, and the metal shielding layer is electrically connected to the outer conductor; the insulating ring is sleeved outside the upper end of the inner insulating layer and separates the conductive core wire from the metal shielding layer.

[0006] Further, it further includes a support ring sleeved outside the metal shielding layer of the cable, and the insulating ring is supported on the support ring.

[0007] Further, an everted layer is provided at the top of the metal shielding layer and is everted and sleeved outside the support ring. The outer conductor is riveted to the support ring, and the everted layer is clamped between the support ring and the outer conductor.

[0008] Further, the inner conductor includes a first inner conductor and a second inner conductor arranged front and back. The upper part of the second inner conductor is inserted and connected to the first inner conductor, and the lower part of the second inner conductor is riveted to the conductive core wire.

[0009] Further, the inner insulator includes a first inner insulator and a second inner insulator. The first inner insulator accommodates the first inner conductor, and the second inner insulator is injection-molded at the connection of the first inner conductor and the second inner conductor and is sleeved with the rear end of the first inner insulator.

[0010] Further, the outer conductor includes a first outer conductor and a second outer conductor arranged front and back. The first outer conductor includes a butt joint tube and an outer connection tube arranged front and back. The butt joint tube is located in the outer insertion hole and surrounds the first inner insulator. The second outer conductor includes a main body part, and the main body part is sleeved outside the second inner insulator and is welded and connected to the outer connection tube.

[0011] Further, the second outer conductor includes a riveting part extending downward from the main body part. The riveting part is sleeved outside the cable and is riveted to the support ring to be electrically connected to the metal shielding layer.

[0012] Further, it further includes a first insulating shell sleeved outside the first outer conductor and an inner sealing ring clamped between the first outer conductor and the first insulating shell. The inner sealing ring abuts against the butt joint tube forward, and the docking seat is sleeved outside the first insulating shell.

[0013] Further, it further includes a second insulating shell, and the second insulating shell is formed by covering the outside of the second outer conductor.

[0014] Further, it further includes a secondary buckle. The docking seat includes a top wall, a bottom wall and two opposite side walls connecting the top wall and the bottom wall. A notch communicating with the outer insertion hole is provided at the rear end of the bottom wall, and two buckle holes are provided on the side wall at upper and lower intervals. The secondary buckle is inserted upward on the docking seat and fills the notch, and convex blocks are provided on the outer side surface of the secondary buckle and are respectively clamped with the buckle holes.

[0015] The Fakra terminal socket connector of the present utility model can separate the conductive core wire and the metal shielding layer of the cable by sleeving an insulating ring on the top of the cable, thereby avoiding short - circuit between the inner conductor and the outer conductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a perspective view of the Fakra terminal socket connector of the present utility model.

[0017] Figure 2 It is a perspective view of the Fakra terminal socket connector of the present utility model from another angle.

[0018] Figure 3 It is a sectional view of the Fakra terminal socket connector of the present utility model.

[0019] Figure 4 Similar to Figure 3 For the convenience of observation, some elements located on the outside are omitted.

[0020] Figure 5 It is an exploded perspective view of the Fakra terminal socket connector of the present utility model.

[0021] Figure 6 It is an exploded perspective view of the Fakra terminal socket connector of the present utility model from another angle.

[0022] Figure 7 It is a schematic perspective combination diagram of the first inner conductor, the second inner conductor and the cable of the Fakra terminal socket connector of the present utility model connected together.

[0023] Figure 8 It is a partial exploded perspective view of the Fakra terminal socket connector of the present utility model, without showing the docking seat and the second insulating housing.

[0024] Figure 9 It is Figure 4 An enlarged view of part A in

[0025] Figure 10 It is an exploded perspective view of the Fakra terminal socket connector of the present utility model, showing the exploded perspective view of the docking seat and the second insulating housing separated from other elements.

[0026] Figure 11 It is a perspective view of the docking seat of the Fakra terminal socket connector of the present utility model.

[0027] Figure 12 It is Figure 4 An enlarged view of part B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Please refer to Figures 1 to 9As shown in the figure, the present utility model discloses a Fakra wire-end socket connector 100 for plugging with a Fakra plug (not shown). It includes a first inner conductor 11, a second inner conductor 12, a first inner insulator 21, a second inner insulator 22, an insulating rear plug 23, a first outer conductor 31, a second outer conductor 32, an outer conductor cover 33, a first insulating housing 41, a second insulating housing 42, an inner sealing ring 43, an outer sealing ring 44, a docking seat 51, a secondary buckle 52, a cable 60, a support ring 70 and an insulating ring 80. Among them, the first inner conductor 11 and the second inner conductor 12 together form an inner conductor, the first outer conductor 31 and the second outer conductor 32 together form an outer conductor, and the first inner insulator 21 and the second inner insulator 22 together form an inner insulator; the first insulating housing 41 and the second insulating housing 42 together form an insulating housing. The Fakra wire-end socket connector is generally composed of an inner conductor, an inner insulator, an insulating housing and a docking seat 51 from the inside to the outside in sequence, and the following is a specific description.

[0029] The first inner conductor 11 extends horizontally forward and backward, and it includes an inner docking portion 112 at the front end and an inner connection portion 114 at the rear end. The front end of the inner docking portion 112 has a petal-shaped structure for the central terminal (not shown) of the Fakra plug (not shown) to insert.

[0030] The second inner conductor 12 extends vertically. The upper part of the second inner conductor 12 is fixedly connected to the inner connection portion 114, and the lower part is riveted to the conductive core wire 61 of the cable 60. The upper part of the second inner conductor 12 includes a rear wall 121 and a pair of clamping pieces 124 that bend forward from the left and right side edges of the rear wall 121. The inner connection portion 114 of the first inner conductor 11 is inserted backward between the pair of clamping pieces 124 and fixed. The rear wall 121 is provided with a through hole 122 that penetrates the rear wall 121 from front to back, and the inner connection portion 114 and the through hole 122 are aligned front and back. The lower part of the second inner conductor 12 includes a riveting piece 125 that is connected to the bottom edge of the rear wall 121 and bends forward at both left and right ends for riveting the cable 60.

[0031] The first inner insulator 21 is sleeved outside the first inner conductor 11. The first inner insulator 21 is provided with a central hole 210 that penetrates the first inner insulator 21 from front to back, and the first inner conductor 11 is received in the central hole 210. The first inner insulator 21 includes a docking column 211 at the front part, a connection column 212 at the rear part, and an intermediate column 213 that connects the docking column 211 and the connection column 212. The outer diameter of the intermediate column 213 is larger than the outer diameters of the docking column 211 and the connection column 212. The central hole 210 sequentially penetrates the docking column 211, the intermediate column 213 and the connection column 212, and a part of the first inner conductor 11 extends backward out of the connection column 212 to be connected to the second inner conductor 12.

[0032] The second inner insulator 22 is injection-molded on the outer side of the connection between the first inner conductor 11 and the second inner conductor 12, and is sleeved together with the rear end of the first inner insulator 21.

[0033] The insulating rear plug 23 is in the shape of a nail, and includes a cover body 231 and a column 232 extending forward from the cover body 231. The insulating rear plug 23 is fixed to the inside of the second inner insulator 22 from the rear side of the second inner insulator 22, and its column 232 is inserted forward into the through hole 122 of the second inner conductor 12 to position the second inner conductor 12 and prevent the second inner conductor 12 from moving downward, so as to avoid the problem that when the cable 60 is pulled, the second inner conductor 12 is dragged downward to cause poor contact or even no contact between the second inner conductor 12 and the first inner conductor 11. Wherein, an avoidance groove 233 is provided on the front end face of the column 232, and the avoidance groove 233 can avoid the first inner conductor 11 to prevent interference between the column 232 and the first inner conductor 11. The setting of the avoidance groove 233 can reduce the size of the connector 100 in the front-back direction and reduce the overall volume of the connector 100. The insulating rear plug 23 is entirely arranged in the second inner insulator 22, and its rear side is limited by the outer conductor cover 33, that is, the cover body 231 of the insulating rear plug 23 is clamped and fixed between the second inner insulator 22 and the outer conductor cover 33 to prevent the insulating rear plug 23 from falling off.

[0034] Please refer to Figures 5 to 6 As shown, the first outer conductor 31 is formed by a stamping and drawing process and is a tubular structure hollow in the front and back. The first outer conductor 31 is sleeved on the outside of the first inner insulator 21, and includes a butt joint pipe 311 and an outer connection pipe 312 connected front and back. The inner diameter and outer diameter of the butt joint pipe 311 are larger than the inner diameter and outer diameter of the outer connection pipe 312. The inner diameter of the butt joint pipe 311 is larger than the outer diameter of the butt joint column 211 of the first inner insulator 21 and surrounds the periphery of the butt joint column 211. An inner insertion hole 313 is formed between the butt joint pipe 311 and the butt joint column 211. A number of slits (not labeled) extending in the front and back directions are provided at the front edge of the butt joint pipe 311, and the number of slits (not labeled) are arranged at intervals along the circumference of the butt joint pipe 311, so that the butt joint pipe 311 can be elastically reduced and opened.

[0035] The second outer conductor 32 includes a main body portion 321 and a riveting portion 322 extending downward from the main body portion 321. The main body portion 321 is fixedly connected to the first outer conductor 31 and is disposed around the outside of the second inner insulator 22. An opening 320 that opens rearward is provided at the rear end of the main body portion 321, and it includes a top wall 3211, a front wall 3212 that bends and extends downward from the front end of the top wall 3211, and two side walls 3213 that bend and extend downward from the left and right ends of the top wall 3211. The front wall 3212 and the two side walls 3213 are integrally connected to the riveting portion 322 respectively. The front wall 3212 is provided with a fixing hole 3215 for inserting and fixing the outer connection tube 312 of the first outer conductor 31. Further, the inner wall of the fixing hole 3215 and the outer connection tube 312 are connected together by laser welding. The riveting portion 322 is riveted on the cable 60.

[0036] The outer conductor cover 33 is fixedly attached to the second outer conductor 32 forward to cover the opening 320 of the second outer conductor 32. Further, the peripheral edge of the outer conductor cover 33 is also fixedly connected to the top wall 3211 and the two side walls 3213 by laser welding.

[0037] The first insulating housing 41 has a hollow structure in the front and rear. It is sleeved on the first outer conductor 31. The inner sealing ring 43 is sleeved on the front end of the outer connection tube 312 of the first outer conductor 31 and abuts against the rear end of the docking tube 311 forward. The inner sealing ring 43 is squeezed between the outer wall of the outer connection tube 312 and the inner wall of the first insulating housing 41 to eliminate the gap between the first outer conductor 31 and the first insulating housing 41 and achieve the waterproof function. An annular groove 410 is provided near the rear end of the first insulating housing 41 for engaging with the secondary buckle member 52.

[0038] Please refer to Figure 10 and Figure 11 As shown, the docking seat 51 is a hollow housing structure in the front and rear. It includes an outer insertion hole 510, a top wall 511, a bottom wall 512, and two opposite side walls 513 connecting the top wall 511 and the bottom wall 512. The docking seat 51 is sleeved on the outside of the first insulating housing 41 and abuts against the second outer conductor 32 rearward. The first insulating housing 41 is suspended in the outer insertion hole 510. The outer sealing ring 44 is sleeved on the first insulating housing 41 and is squeezed between the first insulating housing 41 and the docking seat 51 to eliminate the gap between the first insulating housing 41 and the docking seat 51 and achieve the waterproof function. A notch 514 communicating with the outer insertion hole 510 is provided at the rear end of the bottom wall 512. Two buckle holes 515 spaced apart vertically are respectively formed on the two side walls 513.

[0039] The second insulating housing 42 is formed by overmolding on the outside of the second outer conductor 32 to seal the connection between the second outer conductor 32 and the cable 60.

[0040] The secondary buckle member 52 is inserted upward into the docking seat 51 and fills the notch 514 of the docking seat 51. The left and right outer sides of the secondary buckle member 52 are respectively provided with bumps 521 that are respectively snap-connected to the buckle holes 515, and the inner side is provided with an arc-shaped step 522. The step 522 is snap-locked with the groove 410 of the first insulating housing 41 to limit the front-back movement of the first insulating housing 41. With such a setting, the secondary buckle member 52 assembles the first insulating housing 41 and the docking seat 51 together.

[0041] Reference Figure 4 And in combination with Figure 12 As shown, the cable 60 sequentially includes a conductive core wire 61, an inner insulating layer 62, a metal shielding layer 63, and an insulating outer skin 64 from the inside to the outside. The top of the cable 60 is in a multi-layer stepped shape. Specifically, the conductive core wire 61 is located in the middle and at the top, followed by the inner insulating layer 62, then the metal shielding layer 63, and the bottom layer is the insulating outer skin 64, that is, the upper end of the metal shielding layer 63 exposes the insulating outer skin 64, the upper end of the inner insulating layer 62 exposes the metal shielding layer 63, and the upper end of the conductive core wire 61 exposes the inner insulating layer 62. The riveting piece 125 at the lower end of the second inner conductor 12 is riveted to the conductive core wire 61. The support ring 70 is sleeved outside the metal shielding layer 63. The top of the metal shielding layer 63 is also provided with an outward-turning layer 631 that is folded back outside the support ring 70. The riveting portion 322 of the second outer conductor 32 is riveted to the support ring 70. The outward-turning layer 631 is clamped between the riveting portion 322 and the support ring 70, so that the second outer conductor 32 is electrically connected to the metal shielding layer 63.

[0042] The insulating ring 80 is sleeved outside the upper end of the inner insulating layer 62 of the cable 60, supported on the support ring 70, and disposed inside the second inner insulator 22. The insulating ring 80 can vertically separate the conductive core wire 61 from the metal shielding layer 63, so that even if the braided wire of the metal shielding layer 63 extends upward abnormally during the riveting of the riveting portion 322, it will not contact the conductive core wire 61. Therefore, the insulating ring 80 can prevent the conductive core wire 61 from making electrical contact with the metal shielding layer 63, thereby avoiding a short circuit between the second inner conductor 12 and the second outer conductor 32, that is, avoiding a short circuit between the inner conductor and the outer conductor.

[0043] By sleeving the insulating ring 80 on the top of the cable 60, the Fakra cable end socket connector 100 of the present invention can separate the conductive core wire 61 of the cable 60 from the metal shielding layer 63, thereby avoiding a short circuit between the inner conductor and the outer conductor and ensuring the normal use of the Fakra cable end socket connector 100.

[0044] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those of ordinary skill in the art will realize that various improvements, additions, and substitutions are possible without departing from the scope and spirit of the present invention disclosed by the appended claims.

Claims

1. A Fakra line-end socket connector, comprising an inner conductor, an inner insulator, an outer conductor, a docking seat and a cable, wherein the inner insulator accommodates the inner conductor, the outer conductor is sleeved outside the inner insulator, and the docking seat is provided with an outer plug hole for accommodating the outer conductor, characterized in that: It also includes an insulating ring. The cable includes a conductive core wire, an inner insulating layer, a metal shielding layer and an insulating outer skin from the inside to the outside. The upper end of the conductive core wire exposes the inner insulating layer, the upper end of the inner insulating layer exposes the metal shielding layer, and the upper end of the metal shielding layer exposes the insulating outer skin. The conductive core wire is riveted to the inner conductor, and the metal shielding layer is electrically connected to the outer conductor. The insulating ring is sleeved outside the upper end of the inner insulating layer and separates the conductive core wire from the metal shielding layer.

2. The Fakra line end socket connector according to claim 1, characterized in that: It also includes a supporting ring, which is sleeved on the outside of the metal shielding layer of the cable, and the insulating ring is supported on the supporting ring.

3. The Fakra line end socket connector according to claim 2, characterized in that: An outward-turned layer sleeved outside the support ring is provided on the top of the metal shielding layer. The outer conductor is riveted to the support ring, and the outward-turned layer is clamped between the support ring and the outer conductor.

4. The Fakra line end socket connector according to claim 2, characterized in that: The inner conductor comprises a first inner conductor and a second inner conductor which are arranged front and back, the upper portion of the second inner conductor is plug-connected with the first inner conductor, and the lower portion of the second inner conductor is riveted with the conductive core wire.

5. The Fakra line end socket connector according to claim 4, characterized in that: The inner insulator comprises a first inner insulator and a second inner insulator, the first inner insulator accommodates the first inner conductor, and the second inner insulator is injection molded at the connection between the first inner conductor and the second inner conductor and sleeved with the rear end of the first inner insulator.

6. The Fakra line end socket connector according to claim 5, characterized in that: The outer conductor includes a first outer conductor and a second outer conductor arranged in front and back, the first outer conductor includes a butt tube and an outer connecting tube arranged in front and back, the butt tube is located in the outer plug hole and surrounds the first inner insulator, and the second outer conductor includes a main body, the main body is sleeved outside the second inner insulator and is welded to the outer connecting tube.

7. The Fakra line end socket connector according to claim 6, characterized in that: The second outer conductor includes a riveted portion extending downward from the main body portion, wherein the riveted portion is sleeved outside the cable and riveted to the supporting ring to be electrically connected to the metal shielding layer.

8. The Fakra line end socket connector according to claim 6, characterized in that: It also includes a first insulating shell sleeved outside the first outer conductor and an inner sealing ring sandwiched between the first outer conductor and the first insulating shell, the inner sealing ring abuts against the docking tube forward, and the docking seat is sleeved on the outside of the first insulating shell.

9. The Fakra line end socket connector according to claim 8, characterized in that: It also includes a second insulating shell, which is molded around the outside of the second outer conductor.

10. The Fakra line end socket connector according to claim 9, characterized in that: It also includes a secondary snap-on component, and the docking seat includes a top wall, a bottom wall, and two opposite side walls connecting the top wall and the bottom wall. The rear end of the bottom wall is provided with a notch that passes through the external plug-in hole, and the side wall is provided with two snap-on holes spaced apart from each other up and down. The secondary snap-on component is inserted upward onto the docking seat and fills the notch, and the outer side surface of the secondary snap-on component is provided with a protrusion that is snap-connected one by one with the snap-on holes.

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