Wire-to-wire connector
By designing a complementary cylindrical structure and external thread connection between the first and second insulating bases, combined with a sealing structure, the problem of decreased conductivity and waterproof performance of wire-to-wire connectors during use was solved, achieving stable connection and waterproof effect, and improving the reliability and safety of the connector.
Patent Information
- Application Number
- CN202520302045.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-25
AI Technical Summary
After a period of use, the mating parts of traditional wire-to-wire connectors may become loose, leading to a decrease in electrical conductivity and waterproof performance, which affects usability and safety.
The design employs a first insulating base and a second insulating base, utilizing the complementary first and second semi-cylinders to form a cylinder, and combining them with external threads. This is then fixed together by an external nut, combined with a sealing structure, to achieve a stable conductive connection and a waterproof sealing effect.
It improves the stability of the mating conduction and waterproof performance, ensuring the long-term reliability and safety of the connector. It has a simple structure, low investment cost, and is easy to use and maintain.
Smart Images
Figure CN223927758U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric connector, especially line to line connector. BACKGROUND
[0002] Line to line connector is a kind of electrical connector for connecting between wire and wire, mainly used to realize the transmission of electricity and signal.Line to line connector is widely used in automobile, communication, consumer electronics, data processing, industrial machinery and other wide fields.For example, in the automobile industry, line to line connector is used to connect various systems of automobile, to ensure the stable transmission of electrical signal;In the field of communication, they are used to connect different communication equipment, to ensure the smooth transmission of signal.With the improvement of application requirements, the requirements of line to line connector for conduction and waterproof are higher, and the line to line connector used by traditional plug and play mainly uses interference fit of plug-in part to obtain plug-in force and waterproof, but after a period of use, the fit is loose, which greatly reduces the performance of electrical conduction and waterproof, and affects use and safety. SUMMARY
[0003] The utility model aims at providing a kind of line to line connector, improves plug-in conduction stability and waterproof performance.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] Line to line connector, it has:
[0006] First insulating seat, the plug-in end of the first insulating seat has protruding first half cylinder, first insertion hole and first outer tooth are provided on the first half cylinder;
[0007] First insertion pin, the first insertion pin is positioned on the first insulating seat, and the first insertion pin has first needle stem that protrudes from the plug-in end of the first insulating seat, first needle stem and first half cylinder protrude in the same direction and form parallel relationship;
[0008] First conduction pipe, the first conduction pipe is positioned on the first insulating seat, and the first conduction pipe extends into the first insertion hole of the first half cylinder;
[0009] Second insulating seat, the plug-in end of the second insulating seat has protruding second half cylinder, second insertion hole and second outer tooth are provided on the second half cylinder;
[0010] Second insertion pin, the second insertion pin is positioned on the second insulating seat, and the second insertion pin has second needle stem that protrudes from the plug-in end of the second insulating seat, second needle stem and second half cylinder protrude in the same direction and form parallel relationship;
[0011] Second conduction pipe, the second conduction pipe is positioned on the second insulating seat, and the second conduction pipe extends into the second insertion hole of the second half cylinder;
[0012] When the first insulating seat and the second insulating seat are mated, the first needle rod of the first pin is inserted into the second conductive tube in the second insertion hole to form a conductive connection; the second needle rod of the second pin is inserted into the first conductive tube in the first insertion hole to form a conductive connection; the first semi-cylinder and the second semi-cylinder complement each other to form a cylinder, and the first external thread and the second external thread combine to form an external thread, which is used to assemble the external nut, so that the first insulating seat and the second insulating seat are fixed together, and the joint of the external nut with the first insulating seat and the second insulating seat is respectively provided with a sealing structure.
[0013] The above-mentioned solution is further described as follows: the first insulating seat is provided with a radially outwardly protruding first annular edge, which is located at the root of the first semi-cylinder. The first annular edge is used to support the corresponding end of the outer nut, and a first sealing ring is embedded between the first annular edge and the corresponding end of the outer nut; the second insulating seat is provided with a radially outwardly protruding second annular edge, the outer diameter of which is smaller than the inner diameter of the outer nut. A convex retaining ring is provided at the end of the outer nut away from the first insulating seat. The retaining ring engages with the second annular edge, and a second sealing ring is embedded between the second annular edge and the retaining ring; when the outer nut connects the first insulating seat and the second insulating seat together by a threaded connection, the first sealing ring and the second sealing ring are compressed to achieve a waterproof seal.
[0014] The above solution is further provided with a guide limiting structure at the joint between the first semi-cylinder and the second semi-cylinder; the guide limiting structure includes a guide rib on the first semi-cylinder and a guide rib groove on the second semi-cylinder; when the first insulating seat and the second insulating seat are connected, the guide rib is inserted into the guide rib groove.
[0015] The above solution is further described as follows: the first insulating base is cylindrical, and the solder ends of the first pin and the first conductive tube extend parallel to each other from one end of the first insulating base away from the plug-in end; a first U-shaped wire-connecting groove is provided on the solder end of the first pin, and a second U-shaped wire-connecting groove is provided on the solder end of the first conductive tube, and the first U-shaped wire-connecting groove and the second U-shaped wire-connecting groove are arranged opposite to each other.
[0016] The above scheme is further described as follows: the second insulating base is cylindrical, and the solder ends of the second pin and the second conductive tube extend parallel to each other from one end of the second insulating base away from the plug-in end; a third U-shaped wire-connecting groove is provided on the solder end of the second pin, and a fourth U-shaped wire-connecting groove is provided on the solder end of the second conductive tube, and the third U-shaped wire-connecting groove and the fourth U-shaped wire-connecting groove are arranged opposite to each other.
[0017] A further improvement in the above scheme is that the first conductive tube is also provided with a first elastic gripper, which is used to hold the second needle bar.
[0018] A further improvement in the above scheme is that the second conductive tube is also provided with a second elastic gripper, which is used to hold the first needle bar.
[0019] This utility model has a scientific and reasonable structure with low investment cost. When the first insulating seat and the second insulating seat are connected, the first pin and the second conductive tube form a conductive connection, and the second pin and the first conductive tube form a conductive connection. Furthermore, the first and second semi-cylinders complement each other to form a cylinder and combine to form an external thread for assembling the external nut. The external nut holds the first and second insulating seats together, ensuring good connection stability. In addition, the joints between the external nut and the first and second insulating seats are respectively provided with sealing structures to achieve waterproof sealing, providing good self-protection. The insertion, use, and maintenance are simple, improving practicality. Attached Figure Description
[0020] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Appendix Figure 2 for Figure 1 Schematic diagram of the structural breakdown of the embodiment;
[0022] Appendix Figure 3 This is a schematic diagram of the docking structure between the first insulating base and the second insulating base;
[0023] Appendix Figure 4 for Figure 3 A schematic diagram of the first insulating base and the second insulating base after docking in an embodiment;
[0024] Appendix Figure 5 for Figure 1 Cross-sectional view of the assembled internal structure of the embodiment;
[0025] Appendix Figure 6 This is a schematic diagram of the first insulating base structure;
[0026] Appendix Figure 7 This is a schematic diagram of the second insulating base structure. Detailed Implementation
[0027] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.
[0028] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] See Figure 1 , 2 Figures 3, 4, 5, 6, and 7 are schematic diagrams of a preferred embodiment of this utility model. This utility model relates to a wire-to-wire connector, suitable for conductive connections between wires in automotive, medical, and wire harness applications. It includes: a first insulating seat 1 and a second insulating seat 4 that are mutually connected, and an outer nut 7 that secures the first insulating seat 1 and the second insulating seat 4 together.
[0030] The first insulating base 1 has a protruding first semi-cylinder 11 at its insertion end, on which a first insertion hole 111 and a first external thread 112 are provided. A first pin 2 is positioned on the first insulating base 1 and has a first needle rod 21 extending from the insertion end of the first insulating base. The first needle rod 21 and the first semi-cylinder 11 protrude in the same direction and are arranged side-by-side. A first conductive tube 3 is positioned on the first insulating base 1 and extends into the first insertion hole 111 of the first semi-cylinder. In this embodiment, there are multiple first pins 2 and first conductive tubes 3, each connected to a corresponding wire. Furthermore, the first insulating base 1 is cylindrical, and the solder ends of the first pin 2 and the first conductive tube 3 extend parallel to each other from the end of the first insulating base 1 away from the plug end. At the same time, a first U-shaped wire-connecting groove 22 is provided on the solder end of the first pin 2, and a second U-shaped wire-connecting groove 31 is provided on the solder end of the first conductive tube 3. The first U-shaped wire-connecting groove and the second U-shaped wire-connecting groove are arranged opposite to each other. This structural design facilitates wiring and soldering, effectively prevents short circuits, and improves practicality.
[0031] The second insulating base 4 has a protruding second semi-cylinder 41 at its insertion end, on which a second insertion hole 411 and a second external thread 412 are provided. A second pin 5 is positioned on the second insulating base 4, and the second pin 5 has a second pin shaft 51 extending from the insertion end of the second insulating base. The second pin shaft 51 and the second semi-cylinder 41 protrude in the same direction and are arranged side-by-side. A second conductive tube 6 is positioned on the second insulating base 4 and extends into the second insertion hole 411 of the second semi-cylinder. In this embodiment, there are multiple second pins 5 and multiple second conductive tubes 6, each connected to a corresponding wire. The number of second pins 5 matches the number of first conductive tubes 3, and the number of second conductive tubes 6 matches the number of first pins 2. Furthermore, the second insulating base 4 is cylindrical, and the solder ends of the second pin 5 and the second conductive tube 6 extend parallel to each other from the end of the second insulating base 4 away from the plug end. A third U-shaped wire-connecting groove 52 is provided on the solder end of the second pin 5, and a fourth U-shaped wire-connecting groove 61 is provided on the solder end of the second conductive tube 6. The third U-shaped wire-connecting groove and the fourth U-shaped wire-connecting groove are arranged opposite to each other. This structural design facilitates wiring and soldering, effectively prevents short circuits, and improves practicality.
[0032] Figure 1 ,2 As shown in Figures 3, 4, and 5, when the first insulating base 1 and the second insulating base 4 are mated, the first pin shank 21 of the first pin is inserted into the second conductive tube 6 in the second insertion hole 411 to form a conductive connection; the second pin shank 51 of the second pin is inserted into the first conductive tube 3 in the first insertion hole 111 to form a conductive connection. The first semi-cylinder 11 and the second semi-cylinder 41 complement each other to form a cylinder, and the first external thread 112 and the second external thread 412 combine to form an external thread, which is used to assemble the external nut 7, so that the first insulating base 1 and the second insulating base 4 are fixed together, preventing the first insulating base 1 and the second insulating base 4 from separating and improving the stability of the connection. The external nut 7 and the joint of the first insulating base 1 and the second insulating base 4 are respectively provided with sealing structures to achieve waterproof sealing, improve performance, and meet the needs of wire connection in various occasions.
[0033] In this embodiment, the first insulating seat 1 has a radially outwardly protruding first annular flange 12 located at the root of the first semi-cylinder 11. The first annular flange 12 is used to support the corresponding end of the outer nut 7, and a first sealing ring 81 is embedded between the first annular flange 12 and the corresponding end of the outer nut 7. The second insulating seat 4 has a radially outwardly protruding second annular flange 42, the outer diameter of which is smaller than the inner diameter of the outer nut 7. A protruding retaining ring 71 is provided at the end of the outer nut 7 away from the first insulating seat 1. The retaining ring 71 engages with the second annular flange 42, and a second sealing ring 82 is embedded between the second annular flange 42 and the retaining ring 71. When the outer nut 7 is threaded to fix the first insulating seat 1 and the second insulating seat 4 together, the first sealing ring 81 and the second sealing ring 82 are compressed to achieve a waterproof seal. The structure is simple, easy to use, and has low investment cost. In implementation, the outer nut 7 is movably sleeved on the second insulating seat 4 for easy disassembly and assembly and to prevent loss.
[0034] Figure 2 , 3 As shown in Figures 6 and 7, in this embodiment, a guide limiting structure is provided at the joint between the first semi-cylinder 11 and the second semi-cylinder 41. This guide limiting structure includes a guide rib 113 on the first semi-cylinder 11 and a guide rib groove 413 on the second semi-cylinder 41. When the first insulating seat 1 and the second insulating seat 4 are mated, the guide rib 113 is inserted into the guide rib groove 413. The shape and size of the guide rib 113 and the guide rib groove 413 are matched. Through the cooperation of the guide rib 113 and the guide rib groove 413, not only is the insertion guide provided, but the structural integrity and stability of the joint between the first semi-cylinder 11 and the second semi-cylinder 41 are also increased, improving the plug-in and plug-out usability of the connector.
[0035] In this embodiment, the first conductive tube 3 is further provided with a first elastic gripper 32, which is used to hold the second needle bar 51; the second conductive tube 6 is further provided with a second elastic gripper 62, which is used to hold the first needle bar 21. This structure further increases the conductivity and insertion stability, and improves the connector's plug-in and plug-out usability.
[0036] This utility model has a scientific and reasonable structure with low investment cost. When the first insulating seat and the second insulating seat are connected, the first pin and the second conductive tube form a conductive connection, and the second pin and the first conductive tube form a conductive connection. Furthermore, the first and second semi-cylinders complement each other to form a cylinder and combine to form an external thread for assembling the external nut. The external nut holds the first and second insulating seats together, ensuring good connection stability. In addition, the joints between the external nut and the first and second insulating seats are respectively provided with sealing structures to achieve waterproof sealing, providing good self-protection. The insertion, use, and maintenance are simple, improving practicality.
[0037] While the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention should not be limited to the same structure and operation as described above and the accompanying drawings. For those skilled in the art, many equivalent improvements and variations can be made to the above embodiments through logical analysis, reasoning or limited experiments without exceeding the concept and scope of the present invention, but these improvements and variations should all fall within the scope of protection claimed by the present invention.
Claims
1. A wire-to-wire connector characterized by, Have: The first insulating seat (1), the plug end of the first insulating seat (1) has a protruding first half cylinder (11), and the first half cylinder (11) is provided with a first insertion hole (111) and a first outer tooth (112); The first pin (2) is positioned on the first insulating seat (1), and the first pin (2) has a first pin stem (21) protruding from the plug end of the first insulating seat, the first pin stem (21) protrudes in the same direction as the first half cylinder (11) and forms a parallel relationship; The first conducting tube (3) is positioned on the first insulating seat (1), and the first conducting tube (3) extends into the first insertion hole (111) of the first half cylinder; The second insulating seat (4), the plug end of the second insulating seat (4) has a protruding second half cylinder (41), and the second half cylinder (41) is provided with a second insertion hole (411) and a second outer tooth (412); The second pin (5) is positioned on the second insulating seat (4), and the second pin (5) has a second pin stem (51) protruding from the plug end of the second insulating seat, the second pin stem (51) protrudes in the same direction as the second half cylinder (41) and forms a parallel relationship; The second conducting tube (6) is positioned on the second insulating seat (4), and the second conducting tube (6) extends into the second insertion hole (411) of the second half cylinder; When the first insulating seat (1) and the second insulating seat (4) are connected, the first pin stem (21) of the first pin is inserted into the second conducting tube (6) in the second insertion hole (411) to form a conducting connection; the second pin stem (51) of the second pin is inserted into the first conducting tube (3) in the first insertion hole (111) to form a conducting connection; the first half cylinder (11) and the second half cylinder (41) complementarily form a cylinder, and the first outer tooth (112) and the second outer tooth (412) are combined into an external thread, which is used for assembling an external nut (7), so that the first insulating seat (1) and the second insulating seat (4) are fixedly connected together, and the external nut (7) is provided with a sealing structure on the combined part of the first insulating seat (1) and the second insulating seat (4) respectively.
2. The wire-to-wire connector of claim 1, wherein, The first insulating seat (1) is provided with a radially outwardly protruding first ring (12), which is located at the root of the first half cylinder (11), and the first ring (12) is used to support the corresponding end of the external nut (7), and a first sealing ring (81) is embedded between the first ring (12) and the corresponding end of the external nut (7); the second insulating seat (4) is provided with a radially outwardly protruding second ring (42), the outer diameter of the second ring (42) is smaller than the inner hole diameter of the external nut (7), and an internally protruding snap ring (71) is provided at one end of the external nut (7) away from the first insulating seat (1), the snap ring (71) is connected with the second ring (42), and a second sealing ring (82) is embedded between the second ring (42) and the snap ring (71); when the external nut (7) is connected by threads to fix the first insulating seat (1) and the second insulating seat (4) together, the first sealing ring (81) and the second sealing ring (82) are extruded to achieve waterproof sealing.
3. The wire-to-wire connector of claim 1, wherein, The combination part of the first half cylinder (11) and the second half cylinder (41) is provided with a guide limiting structure, which comprises a guide rib (113) on the first half cylinder (11) and a guide rib groove (413) on the second half cylinder (41); when the first insulating seat (1) and the second insulating seat (4) are butted, the guide rib (113) is inserted into the guide rib groove (413) in sequence.
4. The wire-to-wire connector of claim 1, wherein, The first insulating seat (1) is cylindrical, and the welding wire end of the first pin (2) and the first conducting tube (3) is parallelly extended from one end of the first insulating seat (1) away from the plug-in end.
5. The wire-to-wire connector of claim 1, wherein, The second insulating seat (4) is cylindrical, and the welding wire end of the second pin (5) and the second conducting tube (6) is parallelly extended from one end of the second insulating seat (4) away from the plug-in end.
6. The wire-to-wire connector of claim 4, wherein, A first U-shaped wire clamping groove (22) is arranged on the welding wire end of the first pin (2), a second U-shaped wire clamping groove (31) is arranged on the welding wire end of the first conducting tube (3), and the first U-shaped wire clamping groove and the second U-shaped wire clamping groove are arranged opposite to each other.
7. The wire-to-wire connector of claim 5, wherein, A third U-shaped wire clamping groove (52) is arranged on the welding wire end of the second pin (5), a fourth U-shaped wire clamping groove (61) is arranged on the welding wire end of the second conducting tube (6), and the third U-shaped wire clamping groove and the fourth U-shaped wire clamping groove are arranged opposite to each other.
8. The wire-to-wire connector of claim 1, wherein, The first conducting tube (3) is further provided with a first elastic clamping jaw (32), which is used for clamping the second pin rod (51).
9. The wire-to-wire connector of claim 1, wherein, The second conducting tube (6) is further provided with a second elastic clamping jaw (62), which is used for clamping the first pin rod (21).