Cable connector assembly and method of making same

Abstract

This invention relates to the field of cable connection technology, and discloses a cable connector assembly and its manufacturing method. The cable connector assembly includes a cable and a connector. The cable core has a power line, a ground line, and a signal line. The signal line is located on one half of the core, and the ground line is located on the other half, separated from the ground line by the power line. The core is sequentially covered with a metal braided layer and an outer sheath. The connector circuit board has a first pad, a second pad, and a third pad, with the second and third pads respectively located on opposite sides of the first pad. When the cable ends are stripped of the outer sheath and metal braided layer for wiring, the power line is located between the ground line and the signal line. The power line is soldered to the first pad, the ground line is soldered to the second pad, and the signal line is soldered to the third pad. This invention improves the soldering reliability and manufacturing yield of the cable and connector, and avoids problems such as core wire compression damage, short circuits, and breakage.

Description

Technical Field

[0001] This invention relates to the field of cable connection technology, and in particular to a cable connector assembly and its manufacturing method. Background Technology

[0002] In the field of electronic product charging, with the development of electronic products, the requirements for charging cables are becoming increasingly stringent, making cable structure designs more and more complex, and consequently, the manufacturing complexity of chargers has increased exponentially. Existing charging cables typically include multiple core wires such as power wires, signal wires, and ground wires. Due to differences in the number and position of each core wire, the complexity of wire processing varies greatly when soldering the cable to the charger connector, resulting in significantly different manufacturing yields.

[0003] Currently, before soldering cables to connectors, the core wires are typically arranged in a specific order within a carrier. Then, methods such as laser etching are used to remove the insulation from each core wire to expose the conductor. Afterward, the core wires are soldered to the connector. However, as the number of core wires in cables increases and they become intertwined, improper arrangement during cable handling can lead to risks during soldering. Problems such as core wire compression and insulation damage, short circuits, and core wire breakage can easily occur in the soldering area. Summary of the Invention

[0004] Based on the above, the purpose of this invention is to provide a cable connector assembly and its manufacturing method, which can improve the welding reliability and manufacturing yield between the cable and the connector, and avoid problems such as core wire extrusion, short circuits and breakage.

[0005] To achieve this objective, the embodiments of the present invention adopt the following technical solutions: Cable connector assembly, including: The cable has a core portion comprising a power line, a ground line, and a signal line. The signal line is located on one half of the core portion, and the ground line is located on the other half of the core portion. The signal line and the ground line are separated by the power line. The core portion is covered with a metal braided layer, and the metal braided layer is covered with an outer sheath. A connector includes a circuit board having a first pad, a second pad, and a third pad. The second pad is located on one side of the first pad, and the third pad is located on the other side of the first pad. When the cable is laid up after the outer sheath and the metal braid layer are stripped from the end of the cable, the power line is located between the ground line and the signal line. The power line is soldered to the first pad, the ground line is soldered to the second pad, and the signal line is soldered to the third pad.

[0006] In some possible implementations, the cable further includes a combined ground wire, which is formed by twisting several metal wires from the metal braided layer at the end of the cable with the ground wire, and the combined ground wire is located on the side away from the signal line; the combined ground wire is soldered to the second pad.

[0007] In some possible implementations, the second pad, the first pad, and the third pad are arranged sequentially at intervals along the width of the circuit board.

[0008] In some possible implementations, the first pad, the second pad, and the third pad are all disposed on the top surface of the circuit board; or, the first pad, the second pad, and the third pad are all disposed on the bottom surface of the circuit board; or, some of the first pad, the second pad, and the third pad are disposed on the top surface of the circuit board, and some of the pads are disposed on the bottom surface of the circuit board.

[0009] In some possible implementations, the wire core is provided with at least two power lines, and the circuit board is provided with at least two first pads, each first pad being soldered to at least one of the power lines; and / or, The core portion of the wire is provided with at least two signal lines, and the circuit board is provided with at least two third pads, each of the third pads being soldered to at least one of the signal lines.

[0010] In some possible implementations, when the cable is soldered to the circuit board, the bending path of the signal line is greater than that of the power line, and the bending path of the signal line is greater than that of the ground line.

[0011] In some possible implementations, the power line includes a first conductor and a first insulating layer covering the first conductor; the signal line includes a second conductor and a second insulating layer covering the second conductor; and the ground wire is formed by stranding several tinned hard copper wires.

[0012] In some possible implementations, the material of the metal braided layer is pure copper or a copper-silver alloy.

[0013] A method for manufacturing a cable connector assembly according to any of the above schemes includes: The position of the connector is fixed. The circuit board of the connector is provided with a first pad, a second pad and a third pad. The second pad is located on one side of the first pad and the third pad is located on the other side of the first pad. The cable is placed in a direction perpendicular to the width of the circuit board, with the ground wire of the cable located on the side closer to the second pad and the signal wire located on the side closer to the third pad. The cable is then fixed in position using the first clamp. Remove the outer sheath from the cable end, turn it inside out or remove the metal braided layer from the cable end, so that the ground wire and the signal wire are respectively arranged on both sides of the power wire; then use the second clamp to fix the position of the power wire, the ground wire and the signal wire; Remove the insulation layer from the ends of the power line and the signal line, solder the power line to the first pad, solder the ground line to the second pad, and solder the signal line to the third pad.

[0014] In some possible implementations, the outer sheath of the cable end is stripped, and the metal braided layer of the cable end is turned outward or removed, so that the ground wire and the signal wire are respectively arranged on both sides of the power wire; then, the positions of the power wire, the ground wire, and the signal wire are fixed using a second clamp, and the insulation layer of the power wire end and the signal wire end is stripped; the power wire is soldered to the first pad, the ground wire is soldered to the second pad, and the signal wire is soldered to the third pad. Specifically: Remove the outer sheath from the cable end, turn the metal braided layer of the cable end outward, and pick out several metal wires from the metal braided layer of the cable end and twist them together with the ground wire inside the cable to form a combined ground wire; arrange the combined ground wire and the signal wire on both sides of the power line respectively; then use the second clamp to fix the positions of the power line, the combined ground wire and the signal wire; Remove the insulation layer from the ends of the power line and the signal line, solder the power line to the first pad, solder the combined ground line to the second pad, and solder the signal line to the third pad.

[0015] Beneficial effects of the embodiments of the present invention: Since ground wires typically consist of multiple metal conductors, their surface becomes relatively rough after tinning, making them prone to damage when squeezed against other core wires. Signal wires, used for signal transmission, are usually thinner and more fragile, easily damaged by compression from other core wires. Therefore, in this embodiment of the invention, the signal wires are arranged on one half of the core area, and the ground wires on the other half. This allows the weakest signal wires to be kept away from the relatively rough ground wires during wiring, preventing damage from compression. Simultaneously, on the connector's circuit board, second and third pads are respectively positioned on either side of the first pad. Power lines are soldered to the first pad, ground lines to the second pad, and signal lines to the third pad. This arrangement maximizes the distance between the ground and signal lines, preventing interference and compression between them. Furthermore, placing the ground wire on the outermost edge of the core wire array during cable routing avoids damage to other core wires caused by the ground wire squeezing, and also prevents short circuits with other core wires during ground wire soldering. Conversely, placing the signal wire on the other outermost edge of the core wire array allows it to avoid other core wires, reducing the risk of damage or breakage from squeezing. It also increases the bending path of the signal wire when connecting to the connector, maximizing its buffer zone and ensuring it won't easily break under mechanical stress testing. Therefore, this invention significantly improves the soldering reliability and manufacturing yield between the cable and connector, ensuring a stable connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the cable connector assembly provided in an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of the cable connector assembly provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the connector structure provided in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the cable provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the projection of the cross-section of the combined ground wire provided in the embodiment of the present invention onto the cross-section of the cable.

[0017] In the picture: 1. Cable; 11. Power cord; 12. Ground wire; 13. Signal wire; 14. Metal braided layer; 15. Outer sheath; 16. Combined ground wire; 2. Connector; 21. Circuit board; 211. First pad; 212. Second pad; 213. Third pad; 22. Connector. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 like Figures 1 to 5As shown, this embodiment of the invention provides a cable connector assembly, including a cable 1 and a connector 2. One end of the cable 1 is soldered to a circuit board 21 on the connector 2 to achieve an electrical connection between the cable 1 and the connector 2. The core of the cable 1 is provided with a power line 11, a ground line 12, and a signal line 13. The power line 11 carries the main current of the cable 1, the signal line 13 is used for dynamically adjusting voltage and current and transmitting protocol signals, and the ground line 12 is used for safety protection, voltage reference, and electrostatic discharge. In this embodiment, the signal line 13 is located on one half of the core, and the ground line 12 is located on the other half, separated from the ground line 12 by the power line 11. The core is also covered with a metal braided layer 14, which serves as electromagnetic shielding, mechanical protection, and grounding safety protection. The metal braided layer 14 is covered with an outer sheath 15 to protect it, effectively preventing the cable 1 from moisture, mechanical damage, and light and chemical corrosion, thus improving the service life of the cable 1. The connector 2 in this embodiment also includes a plug-in component 22. The circuit board 21 is fixed inside the plug-in component 22 and electrically connected to the plug-in component 22. The plug-in component 22 is used for electrical connection with external components to be plugged in. The circuit board 21 is provided with a first solder pad 211, a second solder pad 212, and a third solder pad 213. The second solder pad 212 is located on one side of the first solder pad 211, and the third solder pad 213 is located on the other side of the first solder pad 211. Before soldering the cable 1 to the circuit board 21, the outer sheath 15 and the metal braided layer 14 at the end of the cable 1 need to be stripped to expose the core wires, and the core wires need to be arranged in a certain order to facilitate wiring operations. Specifically, in this embodiment, during cable routing, the power line 11 is positioned in the middle, the ground line 12 is positioned on one side of the power line 11, and the signal line 13 is positioned on the other side of the power line 11. This ensures that the power line 11 corresponds to the position of the first pad 211, the ground line 12 corresponds to the position of the second pad 212, and the signal line 13 corresponds to the position of the third pad 213. In this embodiment, the power line 11 is soldered to the first pad 211, the ground line 12 is soldered to the second pad 212, and the signal line 13 is soldered to the third pad 213, thus achieving physical fixation and electrical connection between the cable 1 and the connector 2.

[0023] Since the ground wire 12 usually consists of multiple metal conductors, its surface is relatively rough after being tinned, and it is easy to damage other core wires when squeezed together; while the signal wire 13 is used to transmit signals, and it is usually relatively thin (such as 0.2mm-0.4mm in diameter) and fragile, and is very easy to be squeezed and damaged by other core wires. Therefore, in this embodiment, the signal line 13 is arranged on one half of the core area, and the ground line 12 is arranged on the other half of the core area. This allows the signal line 13, which has the lowest strength, to be kept away from the relatively rough ground line 12 during wiring, thus avoiding the ground line 12 from squeezing and damaging the signal line 13. At the same time, on the circuit board 21 of the connector 2, the second pad 212 and the third pad 213 are respectively set on both sides of the first pad 211, so that the power line 11 is soldered to the first pad 211, the ground line 12 is soldered to the second pad 212, and the signal line 13 is soldered to the third pad 213. In this way, the ground line 12 and the signal line 13 are arranged on both sides of the power line 11, maximizing the distance between the ground line 12 and the signal line 13, and avoiding interference and squeezing between the ground line 12 and the signal line 13. Furthermore, by placing the ground wire 12 on the outermost side of the core wire array during wiring, it avoids damage to other core wires caused by the ground wire 12 pressing against them, and also avoids the risk of short circuits with other core wires when the ground wire 12 is soldered and soldered. Conversely, placing the signal wire 13 on the other outermost side of the core wire array allows it to avoid other core wires, reducing the risk of damage or breakage from pressure from other core wires. It also facilitates a larger bend path when connecting the signal wire 13 to the connector 2. Therefore, this embodiment significantly improves the soldering reliability and manufacturing yield between the cable 1 and the connector 2, ensuring a stable connection between them.

[0024] Optionally, in this embodiment, when the cable 1 is soldered to the circuit board 21, the bending path of the signal line 13 is greater than that of the power line 11, and the bending path of the signal line 13 is greater than that of the ground line 12. By increasing the bending path of the signal line 13, this embodiment enables the signal line 13 to generate a maximum buffer zone, ensuring that the signal line 13 will not easily break due to external forces when facing mechanical stress testing.

[0025] Furthermore, the cable 1 also includes a combined ground wire 16. The combined ground wire 16 is formed by twisting several metal wires picked out from the metal braided layer 14 with the ground wire 12 after the outer sheath 15 is stripped from the end of the cable 1. The combined ground wire 16 is located on the side away from each signal wire 13. In this embodiment, when arranging the core wires of the cable 1, the power line 11 is arranged in the middle, the combined ground wire 16 is arranged on one side of the power line 11, and the signal wire 13 is arranged on the other side of the power line 11. This ensures that the power line 11 corresponds to the position of the first pad 211, the combined ground wire 16 corresponds to the position of the second pad 212, and the signal wire 13 corresponds to the position of the third pad 213. In this embodiment, the power line 11 is soldered to the first pad 211, the combined ground wire 16 is soldered to the second pad 212, and the signal wire 13 is soldered to the third pad 213, thus achieving physical fixation and electrical conduction between the cable 1 and the connector 2.

[0026] In this embodiment, several metal wires are picked out from the metal braided layer 14 of the cable 1 and twisted together with the ground wire 12 to form a combined ground wire 16. On the one hand, this helps to reduce the diameter of the ground wire 12 inside the cable 1, so that the cable 1 has a more rounded outer contour and is easier to manufacture. On the other hand, the combined ground wire 16 has a relatively large diameter and high strength, which can increase the welding area between the ground wire 12 and the connector 2, improve the connection strength between the two, prevent the ground wire 12 from breaking during welding, and ensure the reliability of the connection between the ground wire 12 and the connector 2. Since the combined ground wire 16 is formed by twisting several metal wires together with the ground wire 12, its surface becomes rougher after being tinned. This makes it easier to damage other core wires when squeezed. Therefore, in this embodiment, the combined ground wire 16 and each signal wire 13 are arranged on both sides of the power line 11, maximizing the distance between the combined ground wire 16 and the signal wire 13. This keeps the weakest signal wire 13 away from the strongest combined ground wire 16, thus avoiding the combined ground wire 16 from squeezing and damaging the signal wire 13. Furthermore, when arranging the wires, the combined ground wire 16 is placed on the outermost side of the core wire array. This not only avoids the combined ground wire 16 squeezing and damaging other core wires, but also avoids the risk of short circuits with other core wires when the combined ground wire 16 is soldered and tinned.

[0027] In some embodiments, the first pad 211, the second pad 212, and the third pad 213 are all disposed on the top surface of the circuit board 21. This allows the power line 11, the combined ground line 16, and the signal line 13 to all be connected to the top surface of the circuit board 21, ensuring a large distance between the combined ground line 16 and the signal line 13, resulting in cleaner wiring and easier soldering. In other embodiments, the first pad 211, the second pad 212, and the third pad 213 are all disposed on the bottom surface of the circuit board 21. This allows the power line 11, the combined ground line 16, and the signal line 13 to all be connected to the bottom surface of the circuit board 21, ensuring a large distance between the combined ground line 16 and the signal line 13, while also improving wiring neatness and soldering convenience. Of course, in other embodiments, some of the first pad 211, the second pad 212, and the third pad 213 can be disposed on the top surface of the circuit board 21, and some pads can be disposed on the bottom surface of the circuit board 21, also ensuring a large distance between the combined ground line 16 and the signal line 13.

[0028] Furthermore, in this embodiment, the second pad 212, the first pad 211, and the third pad 213 are arranged sequentially at intervals along the width direction of the circuit board 21, and are all located at one end of the circuit board 21 near the cable 1. This arrangement ensures that when the cable 1 is soldered to the circuit board 21, the combined ground wire 16, power line 11, and signal line 13 are also arranged sequentially along the width direction of the circuit board 21, resulting in neater wiring and easier soldering.

[0029] Optionally, the core of cable 1 is provided with at least two power lines 11, and the circuit board 21 is provided with at least two first pads 211, wherein the number of power lines 11 is not less than the number of first pads 211. During soldering, each first pad 211 is soldered to at least one power line 11. Specifically, the number of power lines 11 can be two, three, four, five, etc., depending on the usage requirements of cable 1. Optionally, the core of cable 1 is provided with at least two signal lines 13, and the circuit board 21 is provided with at least two third pads 213, wherein the number of signal lines 13 is not less than the number of third pads 213. During soldering, each third pad 213 is soldered to at least one signal line 13. Specifically, the number of signal lines 13 can be two, three, four, five, etc., depending on the usage requirements of cable 1.

[0030] Exemplarily, the core portion of this embodiment is provided with four power lines 11, two signal lines 13, and one ground line 12. A second pad 212, two first pads 211, and two third pads 213 are sequentially arranged along the width direction of the circuit board 21. Each pair of power lines 11 is soldered to one first pad 211, and each signal line 13 is soldered to one third pad 213. The ground line 12 is twisted together with several metal wires protruding from the metal braided layer 14 to form a combined ground line 16, which is soldered to the second pad 212. This makes the cable connector assembly compact and reliable in use. Optionally, the power lines 11 include a first conductor and a first insulating layer covering the first conductor; the signal lines 13 include a second conductor and a second insulating layer covering the second conductor; and the ground line 12 is formed by twisting together several tinned hard copper strands (the internal structures of the power lines 11, signal lines 13, and ground line 12 are not shown in the figure). To facilitate differentiation of the core wires in cable 1 and improve the connection efficiency of cable 1, two of the four power wires 11 have pink first insulation layers, and the other two have purple first insulation layers; of the two signal wires 13, one has white second insulation layers, and the other has green second insulation layers. Specifically, refer to... Figure 4 As shown in the embodiment, the four power lines 11 are arranged in a cross shape in the core, located at the top, bottom, left, and right positions of the core, respectively. The two signal lines 13 are respectively located on the top and bottom sides of the right power line 11, and the ground line 12 is located on the bottom side of the left power line 11.

[0031] Optionally, the metal braided layer 14 is made of pure copper or a copper-silver alloy, which improves the shielding performance of the metal braided layer 14 and effectively prevents external interference or leakage of internal electromagnetic waves from affecting other equipment during signal transmission. Furthermore, the metal wires in the metal braided layer 14 are twisted together with the ground wire 12 to form a combined ground wire 16, which effectively improves the conductivity of the combined ground wire 16. Optionally, the outer sheath 15 is made of TPU (thermoplastic polyurethane elastomer). As the first protective barrier of the cable 1, the outer sheath 15, made of TPU material, increases the overall strength of the cable 1 and resists corrosion, moisture, ultraviolet radiation, and other external environmental erosion, effectively protecting the cable 1 from damage.

[0032] Example 2 This embodiment provides a method for manufacturing a cable connector assembly, used to manufacture the cable connector assembly in Embodiment 1. The method includes the following steps: S1. Fix the position of connector 2, wherein the circuit board 21 of connector 2 is provided with a first pad 211, a second pad 212 and a third pad 213, and the second pad 212 is located on one side of the first pad 211 and the third pad 213 is located on the other side of the first pad 211. In this step, the position of connector 2 is fixed. Specifically, a carrier or a welding clamp can be used to fix connector 2. This embodiment does not limit the method, as long as the position of connector 2 can be fixed to prevent movement during the welding process between connector 2 and cable 1. Optionally, the circuit board 21 in this embodiment is provided with two first pads 211, one second pad 212, and two third pads 213, and the second pad 212, the two first pads 211, and the two third pads 213 are arranged sequentially at intervals along the width direction of circuit board 21.

[0033] S2. Place cable 1 in a direction perpendicular to the width of circuit board 21, and place ground wire 12 in cable 1 on the side closer to the second pad 212 and signal wire 13 on the side closer to the third pad 213. Then use the first clamp to fix the position of cable 1. Optionally, in this embodiment, the core of cable 1 is provided with four power lines 11, two signal lines 13, and one ground line 12. (See reference) Figure 4 In the direction shown, during this step, when placing cable 1, cable 1 is rotated according to the distribution of the exposed core wires on the end face of cable 1, so that the four power wires 11 in cable 1 are respectively positioned at the top, bottom, left, and right of the core, while the two signal wires 13 are positioned in the right half of cable 1, and the ground wire 12 is positioned in the left half of cable 1, so that during wiring, the signal wires 13 correspond to the third pad 213, and the ground wire 12 corresponds to the second pad 212. Optionally, in this embodiment, the first clamp is provided with a wire groove and a clamping mechanism, and cable 1 is... Figure 4 The cable 1 is placed in the groove as shown in the figure. The clamping mechanism can clamp the cable 1 to fix its position and prevent it from rotating.

[0034] S3. Strip the outer sheath 15 from the end of cable 1, and turn it outward or remove the metal braided layer 14 from the end of cable 1 to expose all the core wires inside the end of cable 1; then, arrange the positions of each core wire so that the power wire 11 is in the middle position, and the ground wire 12 and signal wire 13 are arranged on both sides of the power wire 11; after the arrangement is completed, use the second clamp to fix the positions of the power wire 11, ground wire 12 and signal wire 13. Optionally, in this embodiment, the four power lines 11 are located in the middle, the ground line 12 is located on one side of the four power lines 11, and the two signal lines 13 are located on the other side of the power lines 11. Optionally, in this embodiment, the second clamp has multiple parallel-arranged core wire slots, each core wire being respectively engaged in its corresponding core wire slot, thereby separating the core wires in a certain order and maintaining a certain distance, thus effectively avoiding interference between the wires and ensuring the safety and reliability of the welding operation.

[0035] S4. After fixing each core wire, strip the insulation layer from the end of each core wire, solder the power wire 11 to the first pad 211, solder the ground wire 12 to the second pad 212, and solder the signal wire 13 to the third pad 213. This completes the reliable connection between the cable 1 and the connector 2.

[0036] In this step, an automatic wire stripping mechanism can be used to remove the insulation layer of each core wire, or the insulation layer at the end of each core wire can be removed manually. Specifically, the first insulation layer at the end of the four power lines 11 is stripped to expose the first conductor inside; the second insulation layer at the end of the two signal lines 13 is stripped to expose the second conductor inside; then, the four first conductors are soldered in pairs to the two first pads 211, the ground line 12 is soldered to the second pad 212, and the two second conductors are soldered one-to-one to the two third pads 213.

[0037] Example 3 This embodiment provides another method for manufacturing a cable connector assembly, used to manufacture the cable connector assembly in Embodiment 1, wherein the grounding wire between cable 1 and connector 2 is a combined grounding wire 16. The method for manufacturing the cable connector assembly provided in this embodiment also includes steps S1-S4, wherein steps S1 and S2 are the same as in Embodiment 2, and steps S3 and S4 are different from those in Embodiment 2. This embodiment will not repeat the identical steps S1 and S2, but will only describe steps S3 and S4.

[0038] In this embodiment, steps S3 and S4 are specifically performed as follows: S3. Strip the outer sheath 15 from the end of cable 1, exposing the inner metal braided layer 14; in the metal braided layer 14 at the end of cable 1, on the side closest to the ground wire 12 (i.e. Figure 5(From the left half of the cable) several metal wires are picked out and twisted together with the ground wire 12 inside the cable 1 to form a combined ground wire 16. The combined ground wire 16 is placed outside the metal braid layer 14 and is positioned furthest from the signal wire 13. Then, the remaining metal braid layer 14 at the end of the cable 1 is turned outward or removed, so that all the core wires inside the cable 1 are exposed. After that, the positions of each core wire are arranged, with the power wire 11 in the middle, the combined ground wire 16 on one side of the power wire 11, and the signal wire 13 on the other side of the power wire 11. After the arrangement is completed, the positions of the power wire 11, the combined ground wire 16, and the signal wire 13 are fixed using a second clamp. Optionally, in this embodiment, the four power lines 11 are located in the middle, the combined ground wire 16 is located on one side of the four power lines 11, and the two signal lines 13 are located on the other side of the power lines 11. Optionally, in this embodiment, the second clamp has multiple parallel core wire slots, and each core wire and combined ground wire 16 is respectively engaged in the corresponding core wire slot, thereby separating the core wires and combined ground wire 16 in a certain order and maintaining a certain distance, thus effectively avoiding interference between wires and ensuring the safety and reliability of the welding operation.

[0039] S4. After securing each core wire, strip the insulation layer from the end of the power line 11 and the end of the signal line 13. Solder the power line 11 to the first pad 211, solder the combined ground wire 16 to the second pad 212, and solder the signal line 13 to the third pad 213. This completes the reliable connection between the cable 1 and the connector 2.

[0040] In this step, an automatic wire stripping mechanism can be used to remove the insulation layer of each core wire, or the insulation layer at the end of each core wire can be removed manually. Specifically, the first insulation layer at the end of the four power lines 11 is stripped to expose the first conductor inside; the second insulation layer at the end of the two signal lines 13 is stripped to expose the second conductor inside; then, the four first conductors are soldered in pairs to the two first pads 211, the combined ground wire 16 is soldered to the second pad 212, and the two second conductors are soldered one-to-one to the two third pads 213.

[0041] In this step, if each core wire is soldered to its corresponding pad simultaneously, the heat will be too concentrated, which can easily burn the conductor's outer sheath. Therefore, this embodiment preferably uses two or more soldering operations. For example, when the combined ground wire 16 is relatively thick, since it conducts more heat, the combined ground wire 16 can be soldered first, and then each power line 11 and each signal line 13 can be soldered simultaneously. When both the combined ground wire 16 and the power line 11 are relatively thick, they can be soldered in three stages: first the combined ground wire 16, then each power line 11, and finally each signal line 13.

[0042] The method for manufacturing the cable connector assembly provided in this embodiment increases the welding area between the ground wire 12 and the connector 2 by creating a combined ground wire 16, thereby improving the connection strength and preventing the ground wire 12 from breaking during welding, ensuring the reliability of the connection between the ground wire 12 and the connector 2. By arranging the combined ground wire 16 and the signal wire 13 on both sides of the power line 11, the combined ground wire 16 avoids squeezing damage to the signal wire 13. Furthermore, since the combined ground wire 16 is located on the outermost side of the core wire array, the risk of short circuits with other core wires during soldering of the combined ground wire 16 is avoided. Each signal wire 13 is located on the other outermost side of the core wire array, increasing the bending path when connecting the signal wire 13 to the connector 2, thus maximizing the buffer zone of the signal wire 13. When facing mechanical stress testing, this ensures that the signal wire 13 will not easily break due to external forces. This embodiment effectively improves the quality stability of the cable connector assembly and avoids the phenomenon of poor electrical performance caused by damage to the core wires during welding.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cable connector assembly, characterized in that, include: The cable has a core portion comprising a power line, a ground line, and a signal line. The signal line is located on one half of the core portion, and the ground line is located on the other half of the core portion. The signal line and the ground line are separated by the power line. The core portion is covered with a metal braided layer, and the metal braided layer is covered with an outer sheath. A connector includes a circuit board having a first pad, a second pad, and a third pad. The second pad is located on one side of the first pad, and the third pad is located on the other side of the first pad. When the cable is laid up after the outer sheath and the metal braid layer are stripped from the end of the cable, the power line is located between the ground line and the signal line. The power line is soldered to the first pad, the ground line is soldered to the second pad, and the signal line is soldered to the third pad.

2. The cable connector assembly according to claim 1, characterized in that, The cable also includes a combined ground wire, which is formed by twisting several metal wires out of the metal braided layer at the end of the cable with the ground wire, and the combined ground wire is located on the side away from the signal line; the combined ground wire is soldered to the second pad.

3. The cable connector assembly according to claim 1, characterized in that, The second pad, the first pad, and the third pad are arranged sequentially at intervals along the width of the circuit board.

4. The cable connector assembly according to claim 1, characterized in that, The first pad, the second pad, and the third pad are all disposed on the top surface of the circuit board; or, the first pad, the second pad, and the third pad are all disposed on the bottom surface of the circuit board; or, some of the first pad, the second pad, and the third pad are disposed on the top surface of the circuit board, and some of the pads are disposed on the bottom surface of the circuit board.

5. The cable connector assembly according to claim 1, characterized in that, The core portion of the wire is provided with at least two power lines, and the circuit board is provided with at least two first pads, each first pad being soldered to at least one of the power lines; and / or The core portion of the wire is provided with at least two signal lines, and the circuit board is provided with at least two third pads, each of the third pads being soldered to at least one of the signal lines.

6. The cable connector assembly according to claim 1, characterized in that, When the cable is soldered to the circuit board, the bending path of the signal line is longer than that of the power line, and the bending path of the signal line is longer than that of the ground line.

7. The cable connector assembly according to claim 1, characterized in that, The power line includes a first conductor and a first insulating layer covering the first conductor; the signal line includes a second conductor and a second insulating layer covering the second conductor; the ground wire is formed by twisting together several tin-plated hard copper strands.

8. The cable connector assembly according to claim 1, characterized in that, The material of the metal braided layer is pure copper or a copper-silver alloy.

9. A method for manufacturing a cable connector assembly according to any one of claims 1-8, characterized in that, include: The position of the connector is fixed. The circuit board of the connector is provided with a first pad, a second pad and a third pad. The second pad is located on one side of the first pad and the third pad is located on the other side of the first pad. The cable is placed in a direction perpendicular to the width of the circuit board, with the ground wire of the cable located on the side closer to the second pad and the signal wire located on the side closer to the third pad. The cable is then fixed in position using the first clamp. Remove the outer sheath from the cable end, turn it inside out or remove the metal braided layer from the cable end, so that the ground wire and the signal wire are respectively arranged on both sides of the power wire; then use the second clamp to fix the position of the power wire, the ground wire and the signal wire; Remove the insulation layer from the ends of the power line and the signal line, solder the power line to the first pad, solder the ground line to the second pad, and solder the signal line to the third pad.

10. The method for manufacturing a cable connector assembly according to claim 9, characterized in that, The outer sheath of the cable end is stripped, and the metal braided layer of the cable end is turned outward or removed, so that the ground wire and the signal wire are respectively arranged on both sides of the power wire; then, the second clamp is used to fix the position of the power wire, the ground wire, and the signal wire, and the insulation layer of the power wire end and the signal wire end is stripped; the power wire is soldered to the first pad, the ground wire is soldered to the second pad, and the signal wire is soldered to the third pad. Specifically: Remove the outer sheath from the cable end, turn the metal braided layer of the cable end outward, and pick out several metal wires from the metal braided layer of the cable end and twist them together with the ground wire inside the cable to form a combined ground wire; arrange the combined ground wire and the signal wire on both sides of the power line respectively; then use the second clamp to fix the positions of the power line, the combined ground wire and the signal wire; Remove the insulation layer from the ends of the power line and the signal line, solder the power line to the first pad, solder the combined ground line to the second pad, and solder the signal line to the third pad.

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