Fakra wire end socket connector

Abstract

The utility model discloses a Fakra wire end socket connector. The Fakra wire end socket connector comprises a first inner conductor, a second inner conductor, a first inner insulator, an outer conductor, a butt joint seat and a cable, the butt joint seat is provided with an outer plug hole, and the outer conductor comprises a first outer conductor and a second outer conductor which are manufactured separately and then assembled together in a laser welding mode. The first outer conductor comprises a butt joint pipe and an outer connecting pipe which are connected front and back, the butt joint pipe is located in the outer plugging hole, and the second outer conductor is connected between the outer connecting pipe and the cable. The Fakra wire end socket connector has the advantages that the structure and the manufacturing process of the outer conductor are simple, the operation is more convenient, the production efficiency is improved, the Fakra wire end socket connector is more suitable for batch production, the assembly of the connector is more convenient, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a Fakra socket connector, in particular to a Fakra line end socket connector with an outer conductor. Background Art

[0002] The main application fields of electrical connectors include transportation, communications, networks, IT, medical treatment, home appliances, military electronic products, etc. The rapid development of product technology in the application fields and the rapid growth of the market have strongly driven the development of electrical connector technology. So far, electrical connectors have developed into a series of professional products with a complete range of products, rich varieties and specifications, diverse structural types, subdivided professional directions, obvious industry characteristics, and standardized standard systems.

[0003] The Fakra connector is an existing standard connector in the automotive electronics industry. In order to meet the universality, 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, a metal elastic ring, an outer insulator and a cable. The inner insulator is between the inner conductor and the outer conductor. The rear ends of the inner conductor and the outer conductor are riveted to the cable respectively. The inner insulator is provided with a central plug hole, the outer insulator is provided with an outer plug hole, the inner conductor is provided with an inner docking portion located in the inner plug hole, and the outer conductor is provided with an outer docking portion located in the outer plug hole. Among them, the outer conductor is assembled after mechanical processing or integrally formed by die casting, and then the internal elastic ring is assembled into the outer conductor, which increases the product assembly process and also increases the cost of the product, including the cost of mechanical processing parts and die casting. Utility Model Content

[0004] The utility model aims to provide a Fakra line-end socket connector with simple structure and manufacturing process.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a Fakra line end socket connector, which includes a first inner conductor, a second inner conductor, a first inner insulator, an outer conductor, a docking seat and a cable, the first inner conductor includes an inner docking part and an inner connecting part connected front and back, the second inner conductor is connected between the inner connecting part and the cable, the first inner insulator is provided with a central hole for accommodating the first inner conductor, the docking seat is provided with an outer plug hole, the outer conductor includes a first outer conductor and a second outer conductor that are separately manufactured and then assembled together by laser welding, the first outer conductor is sleeved on the outer side of the first inner insulator, the first outer conductor includes a docking tube and an outer connecting tube connected front and back, the docking tube is located in the outer plug hole and surrounds the first inner insulator, an inner plug hole is formed between the docking tube and the first inner insulator, and the second outer conductor is connected between the outer connecting tube and the cable.

[0006] As a further improvement, the second outer conductor is provided with a fixing hole for the outer connecting tube to be inserted and fixed, and the inner wall of the fixing hole and the outer connecting tube are laser welded.

[0007] As a further improvement, the second outer conductor includes a main body and a riveted portion extending downward from the main body, the fixing hole is provided in the main body, and the riveted portion is riveted to the cable.

[0008] As a further improvement, the main body includes a top wall, a front end wall bent downward from the front end of the top wall, and two side end walls bent downward from the left and right ends of the top wall, the front end wall or the side end wall is integrally connected to the riveted portion, and the fixing hole is opened in the front end wall.

[0009] As a further improvement, the first outer conductor is formed by a stamping and drawing process and has a tubular structure that is hollow at the front and back, and the inner diameter and outer diameter of the butt tube are larger than the inner diameter and outer diameter of the external connecting tube.

[0010] As a further improvement, a plurality of slits extending forward and backward are provided on the front edge of the butt-joint pipe, and the slits are arranged at intervals along the periphery of the butt-joint pipe.

[0011] A further improvement includes a second inner insulator and a second insulating shell, wherein the second inner insulator is injection molded at the connection between the first inner conductor and the second inner conductor and is sleeved together with the rear end of the first inner insulator, and the second insulating shell is overmolded on the outside of the second outer conductor.

[0012] A further improvement includes a first insulating shell sleeved on the outside of the first outer conductor and an inner sealing ring squeezed between the first outer conductor and the first insulating shell, wherein the inner sealing ring abuts against the butt joint tube forward.

[0013] A further improvement includes a secondary snap-on component, wherein the first insulating shell is provided with an annular groove, 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, the side wall is provided with two snap-on holes spaced apart up and down, the secondary snap-on component is inserted upward into the docking seat and fills the notch, 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, and the inner side is provided with an arc-shaped step, and the step is locked with the groove.

[0014] A further improvement includes a support ring and an insulating ring. The cable includes a conductive core wire, an inner insulating layer, a metal shielding layer and an insulating outer sheath from the inside to the outside. At the upper end of the cable, the lower end of the second inner conductor and the conductive core wire are riveted together, the support ring sleeve is arranged on the metal shielding layer, the lower end of the second outer conductor is riveted to the support ring, the insulating ring sleeve is arranged on the inner insulating layer, and is buried in the second inner insulator.

[0015] The outer conductor of the Fakra line-end socket connector of the utility model comprises a first outer conductor and a second outer conductor which are separately manufactured and then assembled together by laser welding. The first outer conductor is sleeved on the outer side of the first inner insulator. The first outer conductor comprises a butt-joint tube and an outer connecting tube connected front and rear. The butt-joint tube is located in the outer plug-in hole and surrounds the first inner insulator. An inner plug-in hole is formed between the butt-joint tube and the first inner insulator. The second outer conductor is connected between the outer connecting tube and the cable. With such a design, the structure and manufacturing process of the outer conductor are relatively simple, the operation is more convenient, the production efficiency is improved, and it is more suitable for mass production, which makes the assembly of the connector more convenient and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of the Fakra line-end socket connector of the present invention.

[0017] Figure 2 It is a three-dimensional view of the Fakra line-end socket connector of the present invention from another angle.

[0018] Figure 3 It is a cross-sectional view of the Fakra line-end socket connector of the present utility model.

[0019] Figure 4 and Figure 3 Similarly, some components located outside are omitted for ease of observation.

[0020] Figure 5 It is a three-dimensional exploded view of the Fakra line-end socket connector of the present invention.

[0021] Figure 6 This is a three-dimensional exploded view of the Fakra line-end socket connector of the present invention from another angle.

[0022] Figure 7 The present invention is a three-dimensional combined schematic diagram of a first inner conductor, a second inner conductor and a cable of the Fakra line-end socket connector connected together.

[0023] Figure 8 This is a partial exploded perspective view of the Fakra line-end socket connector of the present invention, without showing the docking seat and the second insulating housing.

[0024] Fig. 9 for Figure 4 Enlarged view of point A in the middle.

[0025] Fig.10 It is a three-dimensional diagram of the first outer conductor of the Fakra line end socket connector of the present invention.

[0026] Fig.11 It is a three-dimensional view of the first outer conductor of the Fakra line-end socket connector of the present invention from another angle.

[0027] Fig.12 It is a three-dimensional diagram of the second outer conductor of the Fakra line end socket connector of the present invention.

[0028] Fig.13 It is a perspective exploded view of the Fakra line-end socket connector of the present invention, showing the docking seat and the second insulating housing separated from other components.

[0029] Fig.14 It is a three-dimensional diagram of the docking seat of the Fakra line-end socket connector of the present invention.

[0030] Fig.15 for Figure 4 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0031] See also Figures 1 to 9 As shown, the utility model discloses a Fakra line-end socket connector 100, which is used for plugging with a Fakra plug (not shown), and includes a first inner conductor 11, a second inner conductor 12, a first inner insulator 21, a second inner insulator 22, an insulating back plug 23, a first outer conductor 31, a second outer conductor 32, an outer conductor cover 33, a first insulating shell 41, a second insulating shell 42, an inner sealing ring 43, an outer sealing ring 44, a docking seat 51, a secondary clip 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 inner insulator 21 and the second inner insulator 22 together form an inner insulator, the first outer conductor 31 and the second outer conductor 32 together form an outer conductor, and the first insulating shell 41 and the second insulating shell 42 together form an insulating shell. The Fakra line-end socket connector generally includes an inner conductor, an inner insulator, an outer conductor, an insulating shell and a docking seat 51 from the inside to the outside, which will be described in detail below.

[0032] The first inner conductor 11 extends horizontally front to back and includes an inner docking portion 112 at the front end and an inner connecting portion 114 at the rear end. The front end of the inner docking portion 112 is a petal-shaped structure for inserting a center terminal (not shown) of a Fakra plug (not shown).

[0033] The second inner conductor 12 extends up and down, the upper part of the second inner conductor 12 is fixedly connected to the inner connecting part 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 are bent and extended forward from the left and right side edges of the rear wall 121. The inner connecting part 114 of the first inner conductor 11 is inserted backward and fixed between the pair of clamping pieces 124. The rear wall 121 is provided with a through hole 122 that penetrates the rear wall 121 front and back, and the inner connecting part 114 and the through hole 122 are aligned front and back. The lower part of the second inner conductor 12 includes a rivet pressing piece 125 that is connected to the bottom edge of the rear wall 121 and has left and right ends that are bent and extended forward, and is used for riveting the cable 60.

[0034] The first inner insulator 21 is sleeved on the outside of 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. The first inner conductor 11 is received in the central hole 210. The first inner insulator 21 includes a docking post 211 located at the front, a connecting post 212 located at the rear, and an intermediate post 213 connecting the docking post 211 and the connecting post 212. The outer diameter of the intermediate post 213 is larger than the outer diameters of the docking post 211 and the connecting post 212. The central hole 210 penetrates the docking post 211, the intermediate post 213, and the connecting post 212 in sequence. The first inner conductor 11 partially extends backward from the connecting post 212 to be connected to the second inner conductor 12.

[0035] The second inner insulator 22 is injection molded outside 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 .

[0036] 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 second inner insulator 22 from the rear side of the second inner insulator 22, and the 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 of poor contact or even no contact between the second inner conductor 12 and the first inner conductor 11 when the cable 60 is pulled and dragging the second inner conductor 12 downward. Among them, the front end surface of the column 232 is provided with an avoidance groove 233, which can avoid the first inner conductor 11 and avoid interference between the column 232 and the first inner conductor 11. The setting of the avoidance groove 233 can reduce the front-to-back dimensions of the connector 100 and reduce the overall volume of the connector 100. The insulating rear plug 23 is completely disposed 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.

[0037] Please combine Figure 10 to Figure 11As shown, the first outer conductor 31 is formed by a stamping and drawing process, and is a tubular structure with a hollow front and back. The first outer conductor 31 is sleeved on the outside of the first inner insulator 21, and includes a butt joint tube 311 and an outer connecting tube 312 connected front and back. The inner diameter and outer diameter of the butt joint tube 311 are larger than the inner diameter and outer diameter of the outer connecting tube 312. The inner diameter of the butt joint tube 311 is larger than the outer diameter of the butt joint post 211 of the first inner insulator 21, and surrounds the outer periphery of the butt joint post 211. An inner plug hole 313 is formed between the butt joint tube 311 and the butt joint post 211. The front edge of the butt joint tube 311 is provided with a plurality of slits (not numbered) extending front and back, and the plurality of slits (not numbered) are arranged at intervals along the periphery of the butt joint tube 311, so that the butt joint tube 311 can be elastically shrunk and opened.

[0038] Please combine Fig.12 As shown, the second outer conductor 32 includes a main body 321 and a rivet portion 322 extending downward from the main body 321. The main body 321 and the first outer conductor 31 are fixedly connected together and are arranged around the outer side of the second inner insulator 22. The rear end of the main body 321 is provided with an opening 320 open to the rear, and includes a top wall 3211, a front end wall 3212 bent downwardly from the front end of the top wall 3211, and two side end walls 3213 bent downwardly from the left and right ends of the top wall 3211. The front end wall 3212 and the two side end walls 3213 are respectively connected to the rivet portion 322 as a whole. The front end wall 3212 is provided with a fixing hole 3215 for the outer connecting tube 312 of the first outer conductor 31 to be inserted and fixed. Further, the inner wall of the fixing hole 3215 and the outer connecting tube 312 are connected together by laser welding. The rivet portion 322 is riveted to the cable 60.

[0039] The outer conductor cover 33 is fixed forwardly to the second outer conductor 32 to cover the opening 320 of the second outer conductor 32 . Furthermore, the periphery of the outer conductor cover 33 is fixedly connected to the top wall 3211 and the two side end walls 3213 by laser welding.

[0040] The first insulating housing 41 is a hollow structure with a front and a rear portion, which is sleeved outside the first outer conductor 31. The inner sealing ring 43 is sleeved on the front end of the outer connecting tube 312 of the first outer conductor 31 and abuts against the rear end of the butt tube 311. The inner sealing ring 43 is squeezed between the outer wall of the outer connecting 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 to achieve a waterproof function. The first insulating housing 41 is provided with an annular groove 410 near the rear end for clamping with the secondary clamp 52.

[0041] Please combine Fig.13 and Fig.14As shown, the docking seat 51 is a shell structure with a front and rear hollow, which includes an external plug-in 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 shell 41 and is back against the second outer conductor 32. The first insulating shell 41 is suspended in the external plug-in hole 510. The outer sealing ring 44 is sleeved on the first insulating shell 41 and is squeezed between the first insulating shell 41 and the docking seat 51 to eliminate the gap between the first insulating shell 41 and the docking seat 51 to achieve a waterproof function. A notch 514 that penetrates the external plug-in hole 510 is provided at the rear end of the bottom wall 512, and two buckle holes 515 spaced apart from each other are respectively opened on the two side walls 513.

[0042] The second insulating shell 42 is molded over the outside of the second outer conductor 32 to achieve sealing at the connection between the second outer conductor 32 and the cable 60 .

[0043] The secondary snap fastener 52 is inserted upwardly into the docking seat 51 and fills the gap 514 of the docking seat 51. The left and right outer sides of the secondary snap fastener 52 are respectively provided with protrusions 521 that are snapped together with the snap holes 515 one by one, and the inner side is provided with an arc-shaped step 522, which is snapped together with the groove 410 of the first insulating shell 41 to limit the forward and backward movement of the first insulating shell 41. In this way, the secondary snap fastener 52 assembles the first insulating shell 41 and the docking seat 51 together.

[0044] Combination Fig.15 As shown, the cable 60 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, and then the metal shielding layer 63. The bottom layer is the insulating outer skin 64, that is, the upper end of the metal shielding layer 63 is exposed to the insulating outer skin 64, the upper end of the inner insulating layer 62 is exposed to the metal shielding layer 63, and the upper end of the conductive core wire 61 is exposed to the inner insulating layer 62. The riveting sheet 125 at the lower end of the second inner conductor 12 and the conductive core wire 61 are riveted together, the support ring 70 is sleeved outside the metal shielding layer 63, and the top of the metal shielding layer 63 is also provided with an outer folded layer 631 that is folded back and sleeved outside the support ring 70, the riveted portion 322 of the second outer conductor 32 is riveted on the support ring 70, and the outer folded layer 631 is clamped between the riveted portion 322 and the support ring 70, so that the second outer conductor 32 is electrically connected to the metal shielding layer 63.

[0045] The insulating ring 80 is sleeved outside the upper end of the inner insulating layer 62 of the cable 60, supported on the supporting ring 70, and disposed in the second inner insulator 22. The insulating ring 80 can separate the conductive core wire 61 from the metal shielding layer 63 up and down, and even if the braided wire of the metal shielding layer 63 is abnormal and extends upward during the riveting of the riveting part 322, it will not contact the conductive core wire 61. Therefore, the insulating ring 80 can prevent the conductive core wire 61 from being in electrical contact with the metal shielding layer 63, thereby preventing the second inner conductor 12 from being short-circuited with the second outer conductor 32, that is, preventing the inner conductor from being short-circuited with the outer conductor.

[0046] The first outer conductor 31 and the second outer conductor 32 of the Fakra line-end socket connector 100 of the present invention adopt a two-piece structure, which are separately manufactured and then assembled together by laser welding to form an outer conductor. With such a design, the structure and manufacturing process of the outer conductor are relatively simple, and the operation is more convenient, which improves production efficiency and is more suitable for mass production, making the assembly of the connector more convenient and reducing production costs.

[0047] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A Fakra line-end socket connector, comprising a first inner conductor, a second inner conductor, a first inner insulator, an outer conductor, a docking seat and a cable, wherein the first inner conductor comprises an inner docking portion and an inner connecting portion connected front and back, the second inner conductor is connected between the inner connecting portion and the cable, the first inner insulator is provided with a central hole for accommodating the first inner conductor, and the docking seat is provided with an outer plug hole, characterized in that: The outer conductor includes a first outer conductor and a second outer conductor which are separately manufactured and then assembled together by laser welding. The first outer conductor is sleeved on the outer side of the first inner insulator. The first outer conductor includes a butt-joint tube and an outer connecting tube connected front and back. The butt-joint tube is located in the outer plug hole and surrounds the first inner insulator. An inner plug hole is formed between the butt-joint tube and the first inner insulator. The second outer conductor is connected between the outer connecting tube and the cable.

2. The Fakra line end socket connector according to claim 1, characterized in that: The second outer conductor is provided with a fixing hole for the outer connecting tube to be inserted and fixed, and the inner wall of the fixing hole and the outer connecting tube are laser welded.

3. The Fakra line end socket connector according to claim 2, characterized in that: The second outer conductor includes a main body and a riveted portion extending downward from the main body, the fixing hole is provided in the main body, and the riveted portion is riveted to the cable.

4. The Fakra line end socket connector according to claim 3, characterized in that: The main body includes a top wall, a front end wall bent downward from the front end of the top wall, and two side end walls bent downward from the left and right ends of the top wall. The front end wall or the side end wall is integrally connected to the riveted part, and the fixing hole is opened in the front end wall.

5. The Fakra line end socket connector according to claim 1, characterized in that: The first outer conductor is formed by a stamping and drawing process and is a tubular structure with front and back hollows. The inner diameter and outer diameter of the butt joint tube are larger than the inner diameter and outer diameter of the outer connecting tube.

6. The Fakra line-end socket connector according to claim 1, characterized in that: A plurality of slits extending forward and backward are formed on the front edge of the butt joint pipe, and the slits are arranged at intervals along the periphery of the butt joint pipe.

7. The Fakra line-end socket connector according to claim 1, characterized in that: The second insulator is injection molded at the connection between the first inner conductor and the second inner conductor and is connected to the rear end of the first inner insulator. Socket Together, the second insulating shell is overmolded on the outside of the second outer conductor.

8. The Fakra line-end socket connector according to claim 1, characterized in that: It also includes a first insulating shell sleeved on the outside of the first outer conductor and an inner sealing ring squeezed between the first outer conductor and the first insulating shell, and the inner sealing ring abuts against the butt joint tube forward.

9. The Fakra line end socket connector according to claim 8, characterized in that: It also includes a secondary snap-on component, the first insulating shell is provided with an annular groove, 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, the side wall is provided with two snap-on holes spaced apart from each other up and down, the secondary snap-on component is upwardly plugged into the docking seat and fills the notch, the outer side surface of the secondary snap-on component is provided with a protrusion that is snap-connected to the snap-on holes one by one, and the inner side is provided with an arc-shaped step, and the step is locked with the groove.

10. The Fakra line end socket connector according to claim 7, characterized in that: It also includes a support ring and an insulating ring. The cable includes a conductive core wire, an inner insulating layer, a metal shielding layer and an insulating outer sheath from the inside to the outside. At the upper end of the cable, the lower end of the second inner conductor and the conductive core wire are riveted together, the support ring sleeve is arranged on the metal shielding layer, the lower end of the second outer conductor is riveted to the support ring, the insulating ring sleeve is arranged on the inner insulating layer, and is buried in the second inner insulator.

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