High-conductivity and stable charging wire

Abstract

The utility model discloses a high conductivity and stable charging wire, which comprises a cable, a first connector and a second connector, the first connector and the second connector are arranged at two ends of the cable, the first connector at least comprises an insulating shell and a terminal arranged in the insulating shell, the terminal is fixed and conducted with a PCB (printed circuit board) in a welding manner, the PCB is fixed and conducted with the cable in a welding manner, and the second connector is connected with the cable in a welding manner. The rear end of the terminal is provided with a first pin and a second pin which are bent downwards and distributed in parallel, and the PCB is provided with a first annular bonding pad and a second annular bonding pad corresponding to the first pin and the second pin. And the first pin and the second pin are respectively inserted into the first welding hole of the first annular bonding pad and the second welding hole of the second annular bonding pad from top to bottom, and are welded and fixed through soldering tin, so that stable connection between the terminal and the PCB can be ensured, and meanwhile, the high conduction performance can be enhanced, so that the terminal has extremely strong market competitiveness.

Description

Technical field:

[0001] The utility model relates to the technical field of charging cable products, in particular to a high-conductivity and stable charging cable. Background technology:

[0002] A charging cable is a tool used to connect a power adapter and electronic products to charge the electronic products, while a data cable can also charge electronic products, so it can be considered a charging cable.

[0003] The data cable generally includes a cable and a first connector and a second connector arranged at both ends of the cable, wherein the first connector at least includes an insulator, a terminal arranged in the insulator, and a metal shell wrapped and fixed to the outside of the insulator, the terminal is welded and fixed to the PCB board and is conductive, and the PCB board is welded and fixed to the cable and is conductive, thereby achieving electrical conductivity between the cable and the first connector.

[0004] However, each terminal has only one solder foot, which is generally attached to the pad of the PCB board and then fixed and connected by soldering. This structure has the problem of unstable soldering structure and unsatisfactory conduction performance. For example, a type-c data cable connector disclosed in the invention patent with the authorization announcement number CN110581405B also has this technical problem.

[0005] In view of this, the inventor proposes the following technical solution. Utility model content:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a highly conductive and stable charging cable.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: a highly conductive and stable charging cable includes a cable and a first connector and a second connector arranged at both ends of the cable, wherein the first connector at least includes an insulating shell and a terminal arranged in the insulating shell, the terminal is welded and fixed to the PCB board and is conductive, and the PCB board is welded and fixed to the cable and is conductive, thereby making the cable and the first connector electrically conductive, a first pin and a second pin that are bent downward and distributed in parallel are provided at the rear end of the terminal, a first annular pad and a second annular pad are provided at positions of the PCB board corresponding to the first pin and the second pin, the first pin and the second pin are respectively inserted into the first welding hole of the first annular pad and the second welding hole of the second annular pad from top to bottom, and are fixed by soldering.

[0008] Furthermore, in the above technical solution, the terminal includes a main body, a contact portion bent at the front end of the main body and in a V shape, a baffle bent at the front end of the contact portion and parallel to the main body, and the first pin bent at the rear end of the main body and the second pin punched out along the rear end of the main body and extending downward.

[0009] Furthermore, in the above technical solution, a V-shaped window is provided on the insulating shell, the contact portion of the terminal extends out of the insulating shell through the window, and the contact portion is also in contact with the inner wall of the window, the baffle and the main body are abutted against the inner side of the window, and the insulating shell has a space-avoiding groove for pressing the contact portion downward.

[0010] Furthermore, in the above technical solution, a curved elastic arm with a raised upper end is formed on the insulating shell, and a convex portion protruding upward is provided on the curved elastic arm, and the convex portion is located at the front side of the window.

[0011] Furthermore, in the above technical solution, the insulating shell includes a bottom shell and a top cover which is covered and fixed on the bottom shell, and a limiting accommodating groove for accommodating and limiting the position of the PCB board is arranged in the top cover.

[0012] Furthermore, in the above technical solution, a positioning column is arranged in the top cover, a positioning groove adapted to the positioning column is arranged in the bottom shell, and a positioning hole is arranged on the PCB board, and the positioning column passes through the positioning hole and is embedded in the positioning groove for positioning.

[0013] Furthermore, in the above technical solution, an SR head is further arranged between the cable and the insulating shell, and the outside of the SR head is provided with a plurality of bending grooves distributed horizontally and vertically for enhancing the anti-swing performance.

[0014] Furthermore, in the above technical solution, the SR head end is also provided with a tensile sheet and a slot located on the rear side of the tensile sheet; the lower end of the rear side of the top cover and the upper end of the rear side of the bottom shell are both embedded in the slot, and the tensile sheet is placed inside the top cover and the bottom shell.

[0015] Furthermore, in the above technical solution, limiting ribs are formed on both sides of the insulating shell, and an inclined guide surface is also provided at the front end of the limiting rib.

[0016] Furthermore, in the above technical solution, a limiting column is arranged in the top cover, and a positioning groove adapted to the limiting column is arranged in the bottom shell, and the limiting column and the limiting groove are embedded in each other for limiting.

[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the terminal in the utility model is provided with a first pin and a second pin which are bent downward and distributed in parallel, and the first pin and the second pin are respectively inserted into the first welding hole of the first annular pad and the second welding hole of the second annular pad from top to bottom, and fixed by soldering, thereby not only ensuring a stable connection between the terminal and the PCB board, but also enhancing the high conduction performance, making the utility model extremely competitive in the market. Description of the drawings:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional exploded view of the utility model;

[0020] Figure 3 It is the front view of the utility model;

[0021] Figure 4 yes Figure 3 Section view along AA direction;

[0022] Figure 5 yes Figure 3 Cross-sectional view along BB direction;

[0023] Figure 6 It is an internal structure diagram of the first connector in the utility model;

[0024] Figure 7 It is a three-dimensional diagram of the top cover in the utility model;

[0025] Figure 8 It is a three-dimensional diagram of the terminal in the utility model;

[0026] Fig. 9 It is a stereogram of the terminal in the utility model from another perspective. Specific implementation method:

[0027] The utility model is further described below in conjunction with specific embodiments and drawings.

[0028] See Figure 1-9 As shown, a highly conductive and stable charging cable includes a cable 1 and a first connector 2 and a second connector 3 arranged at both ends of the cable 1, wherein the second connector 3 can be a TYPE-C connector.

[0029] The first connector 2 at least includes an insulating shell 21 and a terminal 22 arranged in the insulating shell 21. The terminal 22 is welded and fixed to the PCB board 23 and is connected, and the PCB board 23 is welded and fixed to the cable 1 and is connected, so that the cable 1 and the first connector 2 are electrically connected. The rear end of the terminal 22 is provided with a first pin 221 and a second pin 222 that are bent downward and distributed in parallel. The PCB board 23 is provided with a first annular pad 231 and a second annular pad 232 at positions corresponding to the first pin 221 and the second pin 222. The first pin 221 and the second pin 222 are respectively inserted into the first welding hole 233 of the first annular pad 231 and the second welding hole 234 of the second annular pad 232 from top to bottom, and are fixed by soldering. That is to say, the terminal 22 in the utility model is provided with a first pin 221 and a second pin 222 which are bent downward and distributed in parallel. The first pin 221 and the second pin 222 are respectively inserted from top to bottom into the first welding hole 233 of the first annular pad 231 and the second welding hole 234 of the second annular pad 232, and are fixed by soldering. This not only ensures that the terminal 22 forms a stable connection with the PCB board 23, but also enhances the high conduction performance, making the utility model extremely competitive in the market.

[0030] The specific structure of the terminal 22 is as follows:

[0031] The terminal 22 includes a main body 223, a V-shaped contact portion 224 bent at the front end of the main body 223, a baffle 225 bent at the front end of the contact portion 224 and parallel to the main body 223, a first pin 221 bent at the rear end of the main body 223, and a second pin 222 punched and formed along the rear of the main body 223 and extending downward. The second pin 222 is larger at the top and smaller at the bottom. The specific assembly structure of the terminal 22 and the insulating shell 21 is as follows: a V-shaped window 211 is provided on the insulating shell 21, and the contact portion 224 of the terminal 22 extends out of the insulating shell 21 through the window 211, and the contact portion 224 also fits against the inner wall of the window 211, thereby achieving surface contact, which can ensure that the contact portion 224 is not easily damaged, and the baffle 225 and the main body 223 are against the inner side of the window 211, thereby ensuring that the contact portion 224 cannot completely extend out of the insulating shell 21, thereby ensuring the quality of the contact portion 224. The insulating shell 21 has a clearance groove 212 for the contact portion 224 to press down, so that after the contact portion 224 contacts the mating connector, the contact portion 224 can be pressed down to form an outward elastic force, thereby ensuring the stability of the conductive connection.

[0032] The insulating shell 21 is formed with a curved elastic arm 213 with a protruding upper end, and the curved elastic arm 213 is provided with a convex portion 214 protruding upward, and the convex portion 214 is located in front of the window 211. The convex portion 214 of the curved elastic arm 213 is pressed against the mating connector to enhance the plugging and unplugging force, thereby improving the stability of the conductive connection.

[0033] The insulating shell 21 is a two-piece structure, specifically: the insulating shell 21 includes a bottom shell 201 and a top cover 202 covering and fixed on the bottom shell 201, a limiting column 206 is arranged in the top cover 202, and a positioning groove 205 adapted to the limiting column 206 is arranged in the bottom shell 201, and the limiting column 206 is embedded and limited in the limiting groove 207. The bottom shell 201 and the top cover 202 can also be glued, fixed by ultrasonic fusion, fastened by a buckle structure, or fastened by locking screws.

[0034] The top cover 202 is provided with a limiting accommodating groove 203 for accommodating and limiting the PCB board 23. The PCB board 23 is pressed into the limiting accommodating groove 203 and is limited by the limiting accommodating groove 203, and a positioning column 204 is provided in the top cover 202, and a positioning groove 205 adapted to the positioning column 204 is provided in the bottom shell 201, and the PCB board 23 is provided with a positioning hole 235, and the positioning column 204 passes through the positioning hole 235 and is embedded and positioned with the positioning groove 205, thereby stably locking the PCB board 23 inside the insulating shell 21.

[0035] An SR head 4 is also provided between the cable 1 and the insulating shell 21. The SR head 4 is provided with a plurality of bending grooves 41 distributed horizontally and vertically for enhancing the anti-swing performance. By adding the SR head 4, the anti-swing performance can be enhanced and the service life of the product can be improved. Among them, the end of the SR head 4 is also provided with a tensile sheet 42 and a card slot 43 located at the rear side of the tensile sheet 42; the rear lower end of the top cover 202 and the rear upper end of the bottom shell 201 are both embedded in the card slot 43, and the tensile sheet 42 is placed in the top cover 202 and the bottom shell 201, thereby achieving good anti-pulling ability and improving the service life of the product.

[0036] The insulating shell 21 is formed with limiting ribs 215 on both sides, and an inclined guide surface 216 is also provided at the front end of the limiting rib 215 .

[0037] To sum up, the terminal 22 in the utility model is provided with a first pin 221 and a second pin 222 which are bent downward and distributed in parallel. The first pin 221 and the second pin 222 are respectively inserted into the first welding hole 233 of the first annular pad 231 and the second welding hole 234 of the second annular pad 232 from top to bottom, and are fixed by soldering. This not only ensures that the terminal 22 forms a stable connection with the PCB board 23, but also enhances the high conduction performance, making the utility model extremely competitive in the market.

[0038] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A highly conductive and stable charging cable, comprising a cable (1) and a first connector (2) and a second connector (3) arranged at both ends of the cable (1), wherein: The first connector (2) comprises at least an insulating shell (21) and a terminal (22) arranged in the insulating shell (21), the terminal (22) is welded and fixed to a PCB board (23) and is electrically connected, and the PCB board (23) is welded and fixed to a cable (1) and is electrically connected, thereby making the cable (1) and the first connector (2) electrically connected, and is characterized in that: The terminal (22) is provided with a first pin (221) and a second pin (222) bent downward and arranged in parallel at the rear end, and the PCB board (23) is provided with a first annular pad (231) and a second annular pad (232) at positions corresponding to the first pin (221) and the second pin (222), and the first pin (221) and the second pin (222) are respectively inserted into the first welding hole (233) of the first annular pad (231) and the second welding hole (234) of the second annular pad (232) from top to bottom, and are fixed by soldering.

2. A highly conductive and stable charging cable according to claim 1, characterized in that: The terminal (22) comprises a main body (223), a V-shaped contact portion (224) bent at the front end of the main body (223), a baffle (225) bent at the front end of the contact portion (224) and parallel to the main body (223), the first pin (221) bent at the rear end of the main body (223), and the second pin (222) punched and formed along the rear of the main body (223) and extending downward.

3. A highly conductive and stable charging cable according to claim 2, characterized in that: A V-shaped window (211) is provided on the insulating shell (21); the contact portion (224) of the terminal (22) passes through the window (211) and extends out of the insulating shell (21), and the contact portion (224) is also in contact with the inner wall of the window (211); the blocking piece (225) and the main body (223) are against the inner side of the window (211); and a clearance groove (212) is provided in the insulating shell (21) for pressing the contact portion (224) downward.

4. A highly conductive and stable charging cable according to claim 3, characterized in that: The insulating shell (21) is formed with a curved elastic arm (213) with a protruding upper end, and the curved elastic arm (213) is provided with a convex portion (214) protruding upward, and the convex portion (214) is located at the front side of the window (211).

5. A highly conductive and stable charging cable according to any one of claims 1 to 4, characterized in that: The insulating shell (21) comprises a bottom shell (201) and a top cover (202) which covers and is fixed on the bottom shell (201); a limiting accommodating groove (203) for accommodating a PCB board (23) and limiting the position of the PCB board (23) is arranged in the top cover (202).

6. A highly conductive and stable charging cable according to claim 5, characterized in that: The top cover (202) is provided with a positioning column (204), the bottom shell (201) is provided with a positioning groove (205) adapted to the positioning column (204), and the PCB board (23) is provided with a positioning hole (235), and the positioning column (204) passes through the positioning hole (235) and is embedded in the positioning groove (205) for positioning.

7. A highly conductive and stable charging cable according to claim 6, characterized in that: An SR head (4) is also provided between the cable (1) and the insulating shell (21), and the outside of the SR head (4) is provided with a plurality of bending grooves (41) distributed horizontally and vertically for enhancing anti-swing performance.

8. A highly conductive and stable charging cable according to claim 7, characterized in that: The end of the SR head (4) is also provided with a tensile sheet (42) and a slot (43) located at the rear side of the tensile sheet (42); the rear lower end of the top cover (202) and the rear upper end of the bottom shell (201) are both embedded in the slot (43), and the tensile sheet (42) is placed inside the top cover (202) and the bottom shell (201).

9. A highly conductive and stable charging cable according to any one of claims 1 to 4, characterized in that: The insulating shell (21) is formed with limiting convex ribs (215) on both sides, and the front end of the limiting convex rib (215) is also provided with an inclined guide surface (216).

10. A highly conductive and stable charging cable according to claim 5, characterized in that: A limiting column (206) is arranged in the top cover (202), and a positioning groove (205) adapted to the limiting column (206) is arranged in the bottom shell (201), and the limiting column (206) and the limiting groove (207) are embedded and limited.

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