Elbow cable connector and manufacturing method thereof

Abstract

The invention discloses an elbow cable connector and a manufacturing method thereof. The elbow cable connector comprises a cable assembly, and the cable assembly comprises an L-shaped bending head, a tubular outer conductor, an insulator, an inner conductor, a cable and a rear cover. The bending head and the rear cover are formed by metal materials in a die-casting mode, the outer conductor forwards penetrates through the bending head to be fixed, the insulator is located in the outer conductor, the inner conductor is located in the insulator, and the rear cover covers the rear end face of the bending head and forwards abuts against the tail end of the outer conductor. In the manufacturing method, the outer conductor forwards passes through the fixing hole, and the tail end of the outer conductor is fixed in the bending head; then the insulator is inserted into the outer conductor from back to front, then the inner conductor and the cable are installed to the bending head, and finally the rear cover is installed to the containing groove of the bending head, so that the rear end of the bending head is sealed. According to the invention, the outer conductor and the bending head are manufactured in different molding modes, so that the overall strength can be improved, and the manufacturing is convenient.

Description

[Technical field]

[0001] The invention relates to an elbow cable connector and a manufacturing method thereof. [Background technology]

[0002] For the prior art, please refer to Chinese utility model patent No. CN217281302U, which discloses a terminal assembly and a connector. The terminal assembly includes: an insulator, which is L-shaped and has a first insulator portion extending along a first direction and a second insulator portion extending along a second direction perpendicular to the first direction; a terminal, which is fixed in the insulator; and a shielding shell, which is L-shaped and installed on the outside of the insulator, wherein the shielding shell is assembled from a plurality of shell parts, and at least one of the plurality of shell parts is a stamping part, so that the stamping-formed shell parts in the shielding shell are easy to form, thereby reducing the manufacturing cost and the size of the connector. However, such connectors are not strong enough for automotive applications or industrial applications.

[0003] Thus, it is desirable to design an improved cable connector. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an elbow cable connector and a manufacturing method thereof, which can improve the overall strength and facilitate manufacturing.

[0005] To solve the above problems, the present invention may adopt the following technical solutions: an elbow cable connector, comprising a cable assembly, wherein the cable assembly comprises an L-shaped bending head, a tubular outer conductor, an insulator, an inner conductor, a cable and a back cover; the bending head and the back cover are formed by die-casting of metal materials, the outer conductor passes forward through the bending head and is fixed, the insulator is located in the outer conductor, the inner conductor is located in the insulator, and the back cover covers the rear end face of the bending head and presses forward against the end of the outer conductor.

[0006] In order to solve the above problems, the present invention can adopt the following technical solutions: a method for manufacturing an elbow cable connector, the elbow cable connector includes a cable assembly and a shell sleeved outside the cable assembly, the cable assembly includes a tubular outer conductor, an insulator, an inner conductor, an L-shaped bending head, a cable and a back cover, the bending head and the back cover are formed by die-casting of metal materials; the manufacturing method comprises: a first step, installing the outer conductor to the bending head, the bending head is provided with a fixing hole penetrating forward and a receiving groove penetrating downward and backward, the outer conductor passes through the fixing hole forward and its end is fixed in the bending head The first step is to insert the insulator into the outer conductor from back to front, the insulator is provided with an extension portion extending to the receiving groove, and the extension portion is provided with a positioning groove; the second step is to install the inner conductor and the cable to the bending head, the inner conductor is inserted into the insulator from back to front, the inner conductor is provided with a tail portion extending to the positioning groove, the cable is arranged in the receiving groove of the bending head, the wire core of the cable is placed in the positioning groove and is electrically connected to the tail portion; the fourth step is to install the back cover to the receiving groove of the bending head, so as to seal the rear end of the bending head.

[0007] Compared with the prior art, the outer conductor and the bending head of the present invention are manufactured by different molding methods, which can improve the overall strength and facilitate manufacturing.

Brief Description of the Drawings

[0008] Figure 1 It is a stereoscopic view of the elbow cable connector of the present invention.

[0009] Figure 2 yes Figure 1 Cross-sectional view along dashed line AA.

[0010] Figure 3 yes Figure 1 A partially disassembled stereogram.

[0011] Figure 4 yes Figure 3 A stereogram from another angle.

[0012] Figure 5 yes Figure 4 , wherein the positioning member, the lower waterproof ring and the fixing member are removed.

[0013] Figure 6 yes Figure 3 A stereoscopic image of further disassembly, in which the positioning parts, lower waterproof ring and fixing parts are removed.

[0014] Figure 7 yes Figure 6 A stereogram from another angle.

[0015] Figure 8 yes Figure 7 A three-dimensional view of the cable assembly after being assembled in the first housing.

[0016] Fig. 9 yes Figure 7 A three-dimensional diagram of the front waterproof ring after the first shell is further disassembled.

[0017] Fig.10 yes Figure 7 A three-dimensional image of the cable assembly being disassembled.

[0018] Fig.11 yes Fig.10 A three-dimensional diagram of the inner and outer conductors after assembly with the bending head.

[0019] Fig.12 yes Fig.11 A stereogram from another angle.

[0020] Fig.13 yes Fig.11 A three-dimensional view of the middle insulator after installation.

[0021] Fig.14 yes Fig.13 A three-dimensional view of the inner conductor and cable after installation.

[0022] Fig.15 yes Fig.14 A three-dimensional view of the bent portion of the middle insulator after being bent.

[0023]

Component Symbol Description

[0024]

[0025]

[0026] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0027] Ginseng Figure 1-8 As shown, the present invention is an elbow cable connector 100, which is a waterproof Fakra cable connector in a specific embodiment. The connector 100 includes a cable assembly 10, a first housing 20, a second housing 30, and a front waterproof ring 42 and a lower waterproof ring 43 for waterproofing.

[0028] Ginseng Figure 1-8 and Fig.10As shown, the cable assembly 10 includes an outer conductor 11, an inner conductor 13 and a cable 15 connected to the inner conductor 13. The inner and outer conductors constitute a plug connector 101, and the cable 15 is bent and extended from the plug connector 101, so that the plug connector 101 and the cable 15 form an L-shaped structure. The specific structure and assembly method will be described below. The first shell 20 is sleeved outside the plug connector 101, and the second shell 30 is sleeved outside the cable 15. The two are fixed to each other to form a complete shell 20A. The first and second shells have mounting surfaces 221 and 321 that are matched and fixed to each other. The cable 15 passes through the mounting surfaces 221 and 321 obliquely. Figure 2 The first and second shells are formed separately and tilted to each other for easy assembly and fixation. The first shell 20 is made of an insulating material and has light transmittance, such as PBT-I-GF30 with a light transmittance of 90%. The second shell 30 is made of an insulating material and has no light-conducting property; the first and second shells are conveniently fixed by laser spot welding. More specifically, the first and second shells are respectively provided with flanges 23 and 33 around a circle, such as Figure 5 As shown, the laser beam A hits the flange 23 of the first shell, and the light-transmitting material of the first shell 20 allows the laser beam to pass through. The second shell 30 can absorb the laser and generate heat, so that the second shell and the first shell are fused to each other and fixed after cooling. In this way, the flanges 22 and 32 are fixed by laser spot welding, which can meet the holding and waterproofing functions. In specific operations, the width of the laser spot welding can be about 0.5 mm.

[0029] The first shell 20 includes a base 22 and a tubular docking portion 21 extending horizontally from the base. The base is provided with a rear end face 221 tilted downward. For the convenience of description, the direction of connector docking is the front, and other positions are relative. The second shell 30 is a roughly rectangular tubular structure, which is provided with an upper end face 321 tilted upward. The rear end face 221 of the base and the upper end face 31 of the second shell form the mounting surfaces 221, 321. The rear end face 221 is set at a 45-degree angle with the docking portion 21. The base 22 is provided with the above-mentioned flange 23 at the edge of its rear end face 221 to widen its mounting surface, and the second shell 30 is provided with the above-mentioned flange 33 at the edge of its upper end face 321 to widen its mounting surface. The flanges 23, 33 of the first and second shells are abutted and fixed to each other. From the front to the back, the flange is a rectangular structure.

[0030] The first housing 20 is provided with a locking arm 24 extending backward from the front end of the docking portion 21 thereof and an arch bridge portion 25 spanning across the base, and the locking arm 24 passes through the arch bridge portion 25 backward. Figure 3-4, a positioning member 41 is installed on the base 22. A stop recess 241 is provided on the lower surface of the locking arm 24, and a stop gap 242 is formed between the locking arm 24 and the docking portion 21. The positioning member 41 can cooperate with the stop recess 241 and the stop gap 242 to achieve a locking effect. The positioning member 41 is provided with mounting arms 411 located on both sides thereof and a crossbeam 412 located at the front end thereof. The positioning member 41 is installed in the housing 20A by snapping the mounting arms 411 in the mounting holes 222 provided in the base. When the positioning member 411 is not docked, the crossbeam 412 abuts against the stop recess 241 to prevent the positioning member 41 from improperly moving forward. During docking, the docking connector presses downward on the locking arm 24, and at the same time, it presses downward on both sides of the beam 412, causing the beam 412 to move downward and disengage from the stop recess 241. The user moves the positioning member 41 forward so that the beam 412 is accommodated in the stop gap 242. In this way, the locking arm 24 cannot move downward, preventing the locking arm from moving downward improperly after docking, thereby preventing the locking action from failing.

[0031] Combination Figure 7-9 The first shell 20 is provided with a through hole 26 that passes through the front and back and a mounting cavity 27 that passes through its rear end face 221. The plug connector 101 is inserted into the through hole 26, and the bending head 14 is fixed in the mounting cavity 27. Fixed ribs 145 are provided on both sides of the bending head, which are correspondingly fixed in the fixing recess 28 provided in the bending head 14. The specific structure of the bending head 14 will be described below. At the same time, the front waterproof ring 42 is installed near the front of the through hole 26, and the front waterproof ring 42 can also be integrally formed in the first shell 30 by injection molding. After the docking connector is inserted, the front waterproof ring 42 can perform waterproofing between the two connectors. The front waterproof ring 42 is provided with mounting ribs 421 extending forward and backward, which cooperate with the mounting recess 261 in the through hole 26 to prevent the front waterproof ring 42 from rotating and moving. A lower waterproof ring 43 is further provided between the second shell 30 and the cable 15, and a fixing member 44 is fastened to a buckle block 34 provided on the outer side of the second shell through its card hole 441 to fix them together. The fixing member 44 is installed at the lower end of the second shell 30 to fix the cable 15, the lower waterproof ring 43 and the second shell 30 together.

[0032] Ginseng Figure 10-11 As shown, the cable assembly 10 includes a tubular outer conductor 11, an insulator 12, an inner conductor 13, an L-shaped bending head 14, a cable 15 and a back cover 16. The bending head 14 and the back cover 16 are made of conductive materials and have a shielding function. Figure 12-15 As shown, the manufacturing method of the cable assembly 10 is generally as follows.

[0033] In the first step, the outer conductor 11 is mounted on the bending head 14. The bending head 14 is provided with a fixing hole 141 extending forward and a receiving groove 142 extending downward and backward. The outer conductor 11 passes through the fixing hole 141 forward and its end is fixed in the bending head 14. The outer conductor 11 is provided with a plurality of elastic fingers 111 protruding outward near its front end and a convex ring 112 at its rear end. After the outer conductor 11 passes through the fixing hole 141, its convex ring abuts against the rear end of the fixing hole, and the inner wall surface of the fixing hole is provided with a plurality of notches 143 for the elastic fingers 111 to pass through one by one.

[0034] In the second step, the insulator 12 is inserted into the outer conductor 11 from the back to the front. The insulator 12 is provided with an extension portion 121 extending to the receiving groove 142 , and the extension portion 121 is provided with a positioning groove 122 .

[0035] The third step is to install the inner conductor 13 and the cable 15 to the bending head 14. In this embodiment, the tail 131 of the inner conductor 13 bent and extended at the rear end and the wire core 151 of the cable 15 are first connected together by riveting, and then assembled together to the bending head 14, wherein the inner conductor 13 is inserted forward into the insulator 12, and the tail 131 of the inner conductor is located in the positioning groove 122. Among them, the end of the cable 15 includes the wire core 151, the insulating layer 152 and the shielding layer 153 exposed in sequence, and the outermost side is covered with an outer insulating layer 154, wherein a metal ring 155 can be set outside the braided layer 153, and the front end of the braided layer is bent and welded to increase the strength of the cable, so the braided layer 153 can exist alone, or it can be wrapped with a metal ring outside to form a high-strength braided layer. The receiving groove 142 is stepped, matching the exposed end of the cable 15. The lower end of the bending head 14 extends downward with a support portion 144, which has a shape matching that of half of the cable. The braided layer 153 is located at the support portion 144, and the insulating layer 152 is placed in the receiving groove 142. Of course, in this step, the inner conductor 13 can also be inserted into the insulator 12, and then the cable 15 is connected to the tail 131 of the inner conductor 13. Then, the bending portion 123 provided on the insulator 12 is bent and buckled into the positioning groove 122 of the insulator 12, thereby fixing the tail 131 and the wire core 151.

[0036] The fourth step is to install the rear cover 16 into the receiving groove 142 of the bending head 14, thereby sealing the rear end of the bending head. The rear cover 16 is pressed forward against the convex ring 112 of the outer conductor 11. Finally, a metal ring 17 can be added. The metal ring 17 is riveted and sleeved at the junction of the cable 15 and the bending head 14 by arc bending to enhance the pulling strength of the cable. Fig.10 and Fig.15As shown, the bending head 14 and the rear cover 16 are both die-cast parts. The front side of the rear cover 16 is provided with a structure that cooperates with the receiving groove 142 and the positioning groove 122 to completely cover the bending head 14. The die-cast form of the bending head 14 and the rear cover 16 increases the strength and also achieves a complete shielding effect. Figure 2 As shown, the rear cover 16 abuts forward against the rib 112 of the outer conductor 11 to prevent the outer conductor from shifting backward. In the present invention, the outer conductor 11 and the bending head 14 are manufactured and assembled separately. Such a separate structure can ensure that the outer conductor has a complex structure of elastic arms and can also ensure that the die-cast bending head has sufficient strength.

[0037] 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 patent of the present invention.

Claims

1. An elbow cable connector, comprising a cable assembly, wherein the cable assembly comprises an L-shaped bending head, a tubular outer conductor, an insulator, an inner conductor, a cable and a rear cover; characterized in that: The bending head and the rear cover are formed by die-casting of metal materials, the outer conductor passes forward through the bending head and is fixed, the insulator is located in the outer conductor, the inner conductor is located in the insulator, and the rear cover covers the rear end face of the bending head and presses forward against the end of the outer conductor.

2. The elbow cable connector according to claim 1, characterized in that: The bending head is provided with a fixing hole extending forward and a receiving groove extending downward and backward. The outer conductor is provided with a plurality of elastic fingers protruding outward near its front end and a convex ring at its rear end. After the outer conductor passes through the fixing hole, its convex ring abuts against the rear end of the fixing hole, and the inner ring of the fixing hole is provided with a plurality of notches for the elastic fingers to pass through one by one, and the rear cover is pressed forward against the convex ring.

3. The elbow cable connector according to claim 2, characterized in that: The insulator is provided with an extension portion extending to the receiving groove, the extension portion is provided with a positioning groove, the inner conductor is provided with a tail portion extending to the positioning groove, the cable is arranged in the receiving groove of the bending head, and the wire core of the cable is placed in the positioning groove and electrically connected to the tail portion.

4. The elbow cable connector according to claim 3, characterized in that: The rear cover is fixed in the receiving groove of the bending head.

5. A method for manufacturing an elbow cable connector, the elbow cable connector comprising a cable assembly and a housing sleeved outside the cable assembly, the cable assembly comprising a tubular outer conductor, an insulator, an inner conductor, an L-shaped bending head, a cable and a back cover, the bending head and the back cover are formed by die-casting of a metal material, characterized in that: The manufacturing method comprises: The first step is to install the outer conductor to the bending head, wherein the bending head is provided with a fixing hole extending forward and a receiving groove extending downward and backward, and the outer conductor passes through the fixing hole forward and its end is fixed in the bending head; The second step is to insert the insulator into the outer conductor from the back to the front, wherein the insulator is provided with an extension portion extending to the receiving groove, and the extension portion is provided with a positioning groove; The third step is to install the inner conductor and the cable to the bending head, wherein the inner conductor is inserted into the insulator from the back to the front, the inner conductor is provided with a tail portion extending to the positioning groove, the cable is arranged in the receiving groove of the bending head, and the core of the cable is placed in the positioning groove and electrically connected to the tail portion; The fourth step is to install the rear cover to the receiving groove of the bending head, so as to seal the rear end of the bending head.

6. The manufacturing method according to claim 5, characterized in that: The insulator is provided with a bending portion; between the third step and the fourth step, the bending portion is bent and buckled into the positioning groove of the insulator, thereby fixing the tail portion and the wire core.

7. The manufacturing method according to claim 6, characterized in that: The bending head is provided with a support portion extending downward, and the end of the cable comprises the exposed wire core, the insulating layer and the shielding layer in sequence, and the shielding layer is placed in the support portion.

8. The manufacturing method according to claim 7, characterized in that: The cable is sheathed with a metal ring, and the metal ring sheaths the support part and the shielding layer therein.

9. The manufacturing method according to claim 5, characterized in that: The outer conductor is provided with a plurality of elastic fingers protruding outward near its front end, and a convex ring is provided at its rear end; after the outer conductor passes through the fixing hole, its convex ring abuts against the rear end of the fixing hole, and the inner ring of the fixing hole is provided with a plurality of notches for the elastic fingers to pass through one by one.

10. The manufacturing method according to claim 5, characterized in that: The rear cover is pressed forward against the convex ring.

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