Stable connector for optimizing flat cable

Abstract

The utility model discloses a stable connector for optimizing a flat cable. The stable connector comprises a plug assembly, a circuit board, a rubber plug and a cable, a first embedded groove is formed in the rear end of the plug assembly, a connecting terminal extending to the rear end of the plug assembly is arranged on the plug assembly, and the connecting terminal is welded to a circuit board; the front end of the circuit board is provided with a first embedded part matched with the first embedded groove, and the rear end of the circuit board is provided with a second embedded part; a second embedded groove matched with the second embedded part is formed in the rubber plug; the cable comprises two rows of core wire groups adapted to different interfaces, each row of core wire group comprises at least two pairs of high-speed signal wire groups, and each pair of high-speed signal wire groups comprises two parallel high-speed communication core wires and two ground wires arranged on the two sides of the high-speed communication core wires in parallel respectively. According to the utility model, the stability of the core wire can be effectively protected, short circuit is avoided, the production efficiency is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a stable connector with optimized cabling. Background Technology

[0002] The Type-C interface is a brand-new connection standard that offers significant improvements over the traditional USB interface in terms of data transfer speed, charging speed, applicability, and power consumption. For example... Figure 1 In the Type-C interface pinout diagram, each pin has a specific number and function. The VBUS pin is responsible for transmitting power, the GND pin is used for grounding, the DP and DM pins are used for data transmission, the SBU1 and SBU2 pins support bidirectional audio signal transmission, and the CC1 and CC2 pins are used to determine the interface function and implement charging support.

[0003] Currently, Type-C connectors have the following shortcomings: 1. Such as Figure 2 As shown, in Type-C interfaces, the GND pin is generally located on both sides. When assembling conventional single-ground-wire 4112 structured cables, the ground wire 4112 is usually placed above or below the two core wires. Therefore, before soldering the cable to the circuit board, the ground wire 4112 must be pulled out from the top or bottom and inserted into the plug above / below the core wires. This inevitably causes the ground wire 4112 to be pressed adjacent to the top / bottom of the core wires. After soldering, the ground wire generates high temperatures, which can easily burn the insulation layer between adjacent core wires, leading to short circuits, withstand voltage failures, and other problems. Secondly, the current positioning of the wires by the plugs is not reasonable. The cable routing process is limited by the plug structure and requires a significant amount of time, affecting production efficiency. Thirdly, a fixture is needed for positioning and assisting in soldering the cables, which is inconvenient. Furthermore, the connection between the circuit board and the plug after soldering relies solely on the core wires and the solder joint, easily leading to a weak connection and resulting in misaligned plugs after soldering. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a stable connector with optimized wiring, which can effectively protect the stability of the core wire, avoid short circuits, reduce the process flow, improve production efficiency, and reduce manufacturing costs.

[0005] To achieve the above objectives, this utility model provides a stable connector with optimized cabling, comprising: a plug assembly, a circuit board, a rubber plug, and a cable;

[0006] A first recessed groove is formed at the rear end of the plug assembly, and a connection terminal extending to the rear end of the plug assembly is provided on the plug assembly, the connection terminal being soldered to the circuit board.

[0007] The front end of the circuit board is provided with a first embedded part that matches the first embedded groove, and the rear end of the circuit board is provided with a second embedded part.

[0008] A second inlay groove matching the second inlay portion is provided on the rubber stopper, and placement groove groups are respectively provided on the upper and lower sides of the second inlay groove;

[0009] The cable includes two rows of core wire groups adapted to different interfaces. Each row of core wire groups includes at least two pairs of high-speed signal wire groups. Each pair of high-speed signal wire groups includes two parallel high-speed communication core wires and two ground wires arranged in parallel on both sides of the high-speed communication core wires. After the two rows of core wire groups are connected to the corresponding placement slots, the core wires are arranged in a straight line and the ground wires will not press against other core wires. The two rows of core wire groups are soldered to the circuit board.

[0010] Furthermore, two symmetrically arranged first plug-in blocks are provided at the middle position of the second embedded part, and the second embedded groove is provided with a first plug-in slot that matches the first plug-in blocks. By designing the cooperation between the first plug-in blocks and the first plug-in slots, the connection between the circuit board and the rubber plug can be made more secure; this avoids the plug being crooked and poor after the core wire is soldered due to a weak connection between the circuit board and the rubber plug, thus improving production quality.

[0011] Furthermore, a first alignment groove is formed between the two first insertion blocks, and a first alignment post is formed between the first insertion grooves to match the first alignment groove. This creates a good positioning structure and improves assembly efficiency.

[0012] Furthermore, the placement slot assembly includes several placement slots, each slot including an arc-shaped wrapping portion for wrapping the core wire assembly and a first protrusion for restricting the core wire assembly. The first protrusion has a first guiding slope on its upper side to guide the core wire assembly into the assembly. Two first protrusions are provided, close to each other, to restrict the core wire assembly. The arc-shaped wrapping portion wraps the core wire, and the first protrusion, positioned above the arc-shaped wrapping portion, restricts the core wire to prevent it from falling off or shifting, facilitating subsequent welding and gluing processes, effectively improving production stability and thus product quality. The first guiding slope facilitates the insertion of the core wire into the arc-shaped wrapping portion, improving production efficiency.

[0013] Furthermore, the rear end of the rubber stopper extends to form a connecting end, and a reinforcing part is provided between the connecting ends. A transition section is formed between the reinforcing part and the placement groove assembly. The transition section supports the cable and, together with the placement groove assembly, forms a good supporting and snap-fit ​​platform, ensuring the core wire assembly is placed stably after installation, preventing it from easily falling off or shifting. This facilitates subsequent welding and gluing processes. The connecting end and the reinforcing part create a symmetrical jaw structure at the rear end of the rubber stopper, effectively increasing the structural rigidity between the gluing block and the rubber stopper during gluing, thus securing the core wire assembly and making the connection more stable.

[0014] Furthermore, concave circular grooves are formed at both ends of the transition portion. These circular grooves form an arc-shaped support area to separate the ground wire from other signal lines, creating sufficient spacing to further protect the signal lines and prevent short circuits caused by the ground wire burning the signal line's sheath during soldering.

[0015] Furthermore, it also includes a glue-filling block for fixing the plug and the cable. The glue-filling block is formed by integrally molding two rows of core wires inserted into the plug through casting. After the cable is inserted into the corresponding placement slot as required, the cable and the plug are placed inside the molding machine. The molding machine injects glue into the connection between the cable and the plug to form a glue-filling block, which can further reinforce the cable, prevent cable misalignment, and avoid problems such as misaligned or defective plugs, thereby improving production quality.

[0016] Furthermore, it also includes tinplate, which encloses the rear end of the plug assembly, the front end of the cable, the circuit board, and the rubber stopper. The tinplate further protects the circuit board, reducing the risk of breakage, and also forms a good shielding layer, improving the connector's performance.

[0017] Furthermore, the circuit board has arc-shaped positioning recesses on both sides, and a positioning post matching the positioning recess is provided on the inner side of the tinplate. The positioning post and the positioning recess cooperate to secure the circuit board in the tinplate, which can play a positioning role, prevent it from shifting, facilitate installation, reduce the probability of plug misalignment, and improve production quality.

[0018] Furthermore, it also includes an outer casing that encloses the aforementioned tinplate and cables, with the cables positioned at the ends of the casing. The outer casing further protects the internal components from damage.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. This utility model uses a novel cable with ground wires arranged side-by-side on two sets of high-speed signal lines. That is, it adopts a double ground wire structure arranged side-by-side on both sides of the high-speed signal lines. When wiring with the rubber plug, the ground wire closest to the ground wire hole can be randomly wired into the hole, and the ground wire on the other side can be cut off and discarded. In this way, the ground wire does not need to be routed above or below the high-speed signal line. When the ground wire is soldered, even if the ground wire is heated to a high temperature, it will not burn the insulation layer of the adjacent high-speed signal line, thereby reducing the risk of short circuits, withstand voltage failures and other adverse phenomena, and effectively improving poor electrical performance.

[0021] 2. The plug assembly and the rubber plug are provided with a first inner cavity groove and a second inner cavity groove. The corresponding circuit board is provided with a first embedded part and a second embedded part to cooperate with each other. During assembly, they can be plugged into each other to form a stable rigid structure, which makes the connection of the three more secure. This avoids quality problems such as the plug being crooked or poor after the core wire is soldered due to the weak connection, and effectively improves the quality of the product.

[0022] 3. Several placement grooves are set on the rubber stopper, forming an arc-shaped wrapping part for wrapping the core wire, a first protrusion for snapping the core wire, and a first guiding slope for introducing the core wire. This allows for quick and regular wiring of the cable without the need for complex threading, achieving rapid wiring and fixing, reducing threading preparation time, streamlining the process, improving production efficiency, and reducing manufacturing costs. Attached Figure Description

[0023] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is the pin definition diagram for the Type-C interface;

[0025] Figure 2 This is a diagram showing the current state of the existing wiring.

[0026] Figure 3 This is a structural schematic diagram of a stable connector with optimized cabling according to this utility model;

[0027] Figure 4 yes Figure 3 A schematic diagram of the decomposition process;

[0028] Figure 5 This is a schematic diagram of the plug assembly of this utility model;

[0029] Figure 6This is a schematic diagram of the circuit board structure of this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the rubber stopper of this utility model;

[0031] Figure 8 This is another schematic diagram of the rubber stopper of this utility model;

[0032] Figure 9 This is a cross-sectional schematic diagram of the cable of this utility model;

[0033] Figure 10 This is a front view of the rubber stopper of this utility model;

[0034] Figure 11 This is a schematic diagram of the rubber plug and cable assembly of this utility model;

[0035] Figure 12 This is a schematic diagram of the tinplate structure of this utility model.

[0036] The diagram includes:

[0037] 1. Plug assembly; 11. Connecting terminal; 12. First recessed groove; 13. Second arc; 2. Circuit board; 21. First recessed part; 22. First arc part; 23. Second recessed part; 24. First plug block; 25. First alignment groove; 26. Positioning recess; 3. Rubber plug; 31. Second recessed groove; 32. First plug groove; 33. First alignment post; 34. Placement slot assembly; 341. Placement slot; 3411. Arc-shaped wrapping part; 3412. First protrusion; 3413. First guide slope 342. Grounding trough; 343. First high-speed signal trough; 344. Second trough; 35. Connecting end; 36. Reinforcing part; 37. Transition part; 38. Reinforcing rib; 39. Round groove; 4. Cable; 41. Core wire group; 411. High-speed signal wire group; 4111. High-speed communication core wire; 4112. Ground wire; 412. Second core wire; 5. Injection block; 6. Tinplate; 61. Positioning post; 62. Snap-on post; 63. Snap-on groove; 64. Upper shell; 65. Lower shell; 7. Outer shell. Detailed Implementation

[0038] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0041] Please see Figures 3 to 12 The present invention provides a stable connector with optimized cabling, comprising: a plug assembly 1, a circuit board 2, a rubber plug 3, and a cable 4;

[0042] like Figures 3 to 5 As shown, a connecting terminal 11 extending to the rear end of the plug assembly 1 is provided on the plug assembly 1. A total of two rows of connecting terminals 11 are provided on the plug assembly 1. The connecting terminals 11 are soldered to the circuit board 2. A first recessed groove 12 is formed at the rear end of the plug assembly 1. The first recessed groove 12 is disposed between the two rows of connecting terminals 11. A first recessed part 21 matching the first recessed groove 12 is provided at the front end of the circuit board 2. During assembly, the first recessed part 21 can be directly inserted into the first recessed groove 12, so that the two rows of connecting terminals 11 can be soldered to the corresponding soldering positions at the front end of the circuit board 2. Preferably, a first arc part 22 is provided on the side edge of the connection between the first recessed part 21 and the circuit board 2 body. Similarly, the ends of the two side walls of the first recessed groove 12 of the plug assembly 1 are also provided with second arc parts 13 matching the first arc part 22. The use of arc structure can make the connection between the two more compact.

[0043] like Figure 6As shown, a second embedded part 23 is provided at the rear end of the circuit board 2; a second embedded groove 31 matching the second embedded part 23 is provided on the rubber plug 3. During assembly, the second embedded part 23 is fully inserted into the second embedded groove 31 to fix the two together. In order to further improve the accuracy of the insertion and make the connection between the two more secure, in this embodiment, two symmetrically arranged first plug-in blocks 24 are provided at the middle position of the second embedded part 23. The second embedded groove 31 is provided with a first plug-in slot 32 matching the first plug-in block 24. A first alignment groove 25 is formed between the two first plug-in blocks 24, and a first alignment post 33 matching the first alignment groove 25 is formed between the first plug-in slots 32. Thus, the first plug-in block 24 cooperates with the first plug-in slot 32, and the first alignment groove 25 cooperates with the first alignment post 33 to achieve a triple positioning and insertion connection. This makes the connection between the circuit board 2 and the rubber plug 3 more secure and prevents the plug from being crooked after the core wire is soldered. This effectively improves the product quality and the assembly efficiency of the circuit board 2 and the rubber plug 3.

[0044] like Figure 7 As shown, the cable 4 includes multiple sets of two rows of core wire groups 41 adapted to different interfaces. Placement slot groups 34 are respectively provided on the upper and lower sides of the second embedded slot 31. Each placement slot group 34 includes several placement slots 341. Each placement slot 341 includes an arc-shaped wrapping portion 3411 for wrapping the core wire group 41 and a first protrusion 3412 for restricting the core wire group 41. The upper side of the first protrusion 3412 is provided with a first guiding slope 3413 to guide the core wire group 41 into the cable. There are two first protrusions 3412, which are close to each other, for the core wire group 41... To restrict the wires, the core wires of the two rows of core wire groups 41 are inserted into the corresponding placement slots 341 according to the Type-C protocol and then soldered to the circuit board 2; the arc-shaped wrapping part 3411 is used to wrap the core wires, and the first protrusion 3412 is set above the arc-shaped wrapping part 3411 to restrict the core wires so that they do not fall off or shift, which facilitates the subsequent soldering and glue injection processes, effectively improving the stability of production and thus improving the quality of products. The first guide slope 3413 facilitates the insertion of the core wires into the arc-shaped wrapping part 3411, which can improve production efficiency.

[0045] Preferably, such as Figures 9 to 11As shown, each row of core wire groups 41 includes at least two pairs of high-speed signal wire groups 411 and several second core wires 412. Each pair of high-speed signal wire groups 411 includes two parallel high-speed communication core wires 4111 and two ground wires 4112 respectively arranged on both sides of the high-speed communication core wires 4111. Similarly, the placement slot 341 can be divided into a ground wire slot 342, a first high-speed signal slot 343 and several second wire slots 344. The number of second core wires 412 and second wire slots 344 can be set according to different functional requirements, which will not be elaborated further. In this embodiment, two high-speed communication core wires 4111 and two ground wires 4112 are wrapped side by side to form a high-speed signal line group. During use, the ground wire 4112 no longer needs to be wrapped around the top / bottom of the high-speed communication core wire 4111. Specifically, taking the 20-pin Type-C female interface of this embodiment as an example, in the current Type-C specification protocol, the interfaces on the left and right sides of the first row of circuit board 2 are A1, A2, and A3, and A10, A11, and A12, respectively. The corresponding connected core wires are ground wire 4112 and two high-speed communication core wires 4111 (TX1+ and TX1-), and two high-speed communication core wires 4111 (RX2- and RX2+) and ground wire 4112. The interfaces on the left and right sides of the second row are B1, B2, and B3, and B10, B11, and B12, respectively. The corresponding connected core wire is ground wire 4112. The system includes two high-speed communication cores 4111 (RX1+ and RX1-), two high-speed communication cores 4111 (TX2- and TX2+), and a ground wire 4112. These are used to achieve high-speed signal reception and reception for USB 3.0 and to implement the ground wire 4112 function. Based on this, in this embodiment, ground wires 4112 are directly placed on both sides of the high-speed signal line group 411. When routing the four wires parallel to each other on the same straight line with the rubber plug 3, only the ground wire 4112 closest to the placement slot 341 for wrapping the ground wire 4112 needs to be selected and inserted into the slot 341. The remaining ground wire 4112 can be directly cut off and discarded. This way, the ground wire 4112 does not need to be routed around the high-speed line group during routing, thus avoiding the high temperature during soldering of the ground wire 4112 damaging the insulation layer of the high-speed communication cores 4111, thereby improving the stability of the line. Other interfaces can be connected to the corresponding cores according to the Type-C protocol standard.

[0046] To improve the connection between the plug 3 and the cable 4, this embodiment also includes a glue injection block 5. The glue injection block 5 is formed by casting two rows of core wire groups 41 after they are inserted into the plug 3. Specifically, a connecting end 35 extends from the rear end of the plug 3, and a reinforcing part 36 is provided between the connecting ends 35. A transition part 37 is formed between the reinforcing part 36 and the placement groove group 34. The transition part 37 can support the cable 4 and, together with the placement groove group 34, forms a good support and snap-fit ​​platform, so that the core wire group 41 can be placed in a stable state after installation, and is not easy to fall off or shift. When the cable 4 is inserted into the corresponding placement groove 341 as required, the cable 4 and the plug 3 are placed inside the molding machine. The molding machine injects glue into the connection between the cable 4 and the plug 3 to form the glue injection block 5.

[0047] Furthermore, two sets of reinforcing ribs 38 are provided on the transition section 37. The reinforcing ribs 38 are arranged in a triangular shape. The upper end of the reinforcing ribs 38 is a flat surface, which can be used to support the abandoned ground wire 4112. Finally, the reinforcing ribs 38 are fixed to the flat surface by an adhesive injection block.

[0048] Preferred, such as Figure 8 As shown, concave grooves 39 are formed at both ends of the transition portion 37. The grooves 39 are concave from the transition portion 37 toward the connecting ends 35 at both ends, forming an arc-shaped support area. This is used to separate the ground wire 4112 from other signal wires, creating sufficient spacing to further protect the signal wires and prevent the ground wire 4112 from burning the outer sheath of the signal wires during soldering, which could cause short circuits or other problems.

[0049] like Figure 12 As shown, to increase the structural rigidity and EMI shielding function of the connector, a tinplate 6 is also included. The tinplate 6 encloses the rear end of the plug assembly 1, the front end of the cable 4, the circuit board 2, and the rubber plug 3. The tinplate 6 further protects the circuit board 2, reducing the risk of breakage. Simultaneously, the tinplate 6 forms a good shielding layer, improving the connector's performance. Preferably, arc-shaped positioning recesses 26 are provided on both sides of the circuit board 2. The tinplate 6 includes an upper housing 64 and a lower housing 65. Inside both the upper housing 64 and the lower housing 65, there is a positioning post 61 that matches the positioning recess 26. At the ends of the two positioning posts 61, there are matching fastening posts 62 and fastening grooves 63, respectively. Thus, the upper housing 64 and the lower housing 65 are fastened together through the cooperation of the fastening posts 62 and fastening grooves 63. Finally, the connection between the upper housing 64 and the lower housing 65 can be welded to seal it, further enhancing the protection of the internal components.

[0050] To enhance aesthetics, structural rigidity, and other functions, and to meet customer needs, this embodiment also includes an outer casing 7. The outer casing 7 encloses the aforementioned tinplate 6 and the cable 4, with the cable 4 attached to the end of the outer casing 7. The outer casing 7 further protects the internal components from damage, and various patterns (such as engraving or printing) can be applied to its outer surface to meet customer requirements.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A stable connector with optimized cabling, characterized in that, include: The plug assembly (1), circuit board (2), rubber plug (3), and cable (4); A first recessed groove (12) is formed at the rear end of the plug assembly (1), and a connection terminal (11) extending to the rear end of the plug assembly (1) is provided on the plug assembly (1), and the connection terminal (11) is soldered to the circuit board (2). The front end of the circuit board (2) is provided with a first embedded part (21) that matches the first embedded groove (12), and the rear end of the circuit board (2) is provided with a second embedded part (23). A second inlay groove (31) matching the second inlay part (23) is provided on the rubber stopper (3), and placement groove groups (34) are respectively provided on the upper and lower sides of the second inlay groove (31); The cable (4) includes two rows of core wire groups (41) adapted to different interfaces. Each row of core wire groups (41) includes at least two pairs of high-speed signal wire groups (411). Each pair of high-speed signal wire groups (411) includes two parallel high-speed communication core wires (4111) and two ground wires (4112) respectively arranged on both sides of the high-speed communication core wires (4111). The two rows of core wire groups (41) are soldered to the circuit board (2).

2. The stable connector for optimized cabling according to claim 1, characterized in that, Two symmetrically arranged first plug-in blocks (24) are provided in the middle position of the second embedded part (23), and the second embedded groove (31) is provided with a first plug-in groove (32) that matches the first plug-in blocks (24).

3. A stable connector for optimized cabling according to claim 2, characterized in that, A first alignment groove (25) is formed between the two first plug-in blocks (24), and a first alignment post (33) matching the first alignment groove (25) is formed between the first plug-in grooves (32).

4. A stable connector for optimized cabling according to claim 1, characterized in that, The placement slot group (34) includes a plurality of placement slots (341). Each placement slot (341) includes an arc-shaped wrapping portion (3411) for wrapping the core wire group (41) and a first protrusion (3412) for restricting the core wire group (41). The upper side of the first protrusion (3412) is provided with a first guide slope (3413) for guiding the core wire group (41) to enter. There are two first protrusions (3412) that are close to each other to restrict the core wire group (41).

5. A stable connector for optimized cabling according to claim 1, characterized in that, The rear end of the rubber stopper (3) extends to form a connecting end (35), and a reinforcing part (36) is provided between the connecting ends (35) for connection. A transition part (37) is formed between the reinforcing part (36) and the placement groove assembly (34).

6. A stable connector with optimized cabling according to claim 5, characterized in that, The transition portion (37) has concave round grooves (39) formed at both ends.

7. A stable connector for optimized cabling according to claim 1, characterized in that, It also includes a glue injection block (5) for fixing the rubber plug (3) and the cable (4), wherein the glue injection block (5) is formed by casting after two rows of core wire groups (41) are inserted into the rubber plug (3).

8. A stable connector with optimized cabling according to claim 7, characterized in that, It also includes a tinplate (6) that encloses the rear end of the plug assembly (1), the front end of the cable (4), the circuit board (2), and the rubber plug (3).

9. A stable connector for an optimized ribbon cable according to claim 8, characterized in that, The circuit board (2) has arc-shaped positioning recesses (26) on both sides, and a positioning post (61) matching the positioning recesses (26) is provided on the inner side of the tinplate (6).

10. A stable connector with optimized cabling according to claim 8, characterized in that, It also includes an outer shell (7), which encloses the aforementioned tinplate (6) and cable (4), with the cable (4) provided at the end of the outer shell (7).

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