A multi-contact coaxial connector

Abstract

The utility model provides a kind of multi-contact coaxial connector, including coaxial setting insulating positioning member, several terminals, support piece, cable and cover piece in outermost part, cable one end is equipped with several conductors, and the at least part of several terminals is connected on insulating positioning member in annular array, and the other end extends to cable and is connected with several conductors one by one, and support piece is connected between the connecting place of terminal and conductor and insulating positioning member;Adopt split type structure, by step assembly and secondary injection molding process, reduce the mold complexity and manufacturing precision requirement, improve product yield and production efficiency, reduce production cost;Terminal is clamped and fixed on insulating positioning member, and the connecting place of terminal and conductor is filled and coated by support piece, ensure the reliable insulation and structural integrity between multiple terminals, enhance the anti-plug stress and mechanical strength, improve the long-term use reliability and electrical safety of connector.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a multi-contact coaxial connector. Background Technology

[0002] Connectors, as a key component widely used in electronic devices and communication systems, are responsible for transmitting high-frequency signals and ensuring signal integrity. In existing technologies, connectors are mostly manufactured using a monolithic molding process, integrating the insulator and conductive terminals through a single injection or molding process. This process offers advantages such as high efficiency and low cost for connectors with simple structures. However, with the development of electronic devices towards higher density and multi-functionality, the demand for multi-contact coaxial connectors is increasing, requiring connectors to accommodate multiple terminals to achieve simultaneous transmission and isolation of multiple signals. The monolithic molding process reveals significant shortcomings when dealing with such complex structures: First, the mold setting accuracy requirements are extremely high; even slight deviations can lead to inaccurate terminal positioning or uneven insulation spacing, affecting electrical performance. Second, material flow is difficult to control during injection molding, easily resulting in defects such as material shortages, porosity, or uneven filling, reducing insulation strength and product consistency. These problems lead to low manufacturing yield, increased production costs, and limit the application of multi-contact connectors in demanding scenarios. Therefore, there is an urgent need for a coaxial connector solution that can balance multi-contact setup, ease of manufacturing, and structural stability. Utility Model Content

[0003] (1) Technical problems to be solved This utility model provides a multi-contact coaxial connector, which aims to solve the problems of high difficulty in integral molding manufacturing.

[0004] (2) Technical solution This utility model provides a multi-contact coaxial connector, including an insulating positioning member, several terminals, a support member, a cable, and a cover member sleeved on the outermost side. One end of the cable is provided with several wires, and at least a portion of the several terminals are connected to the insulating positioning member in a circular array. The other end extends to the cable and is connected to the several wires one by one. The support member is connected between the connection point of the terminals and the wires and the insulating positioning member.

[0005] Furthermore, the outer peripheral wall of the insulating positioning member is provided with a plurality of annularly arrayed grooves, and a boss is formed between adjacent grooves, and a plurality of terminals are disposed in the plurality of grooves.

[0006] Furthermore, the depth of the groove is greater than the thickness of the terminal.

[0007] Furthermore, the two side walls of the groove are provided with a first snap-fit ​​groove formed by mutual retraction, the depth of the first snap-fit ​​groove corresponding to the thickness of the terminal, so that the terminal is snapped into the first snap-fit ​​groove.

[0008] Furthermore, a snap-fit ​​block extends from the end of the terminal away from the wire, and the groove is provided with a second snap-fit ​​groove corresponding to the snap-fit ​​block.

[0009] Furthermore, the end of the insulating positioning member away from the cable is a smooth, curved portion.

[0010] Furthermore, the terminal snapped into the groove smoothly transitions with the smooth portion, and the boss at least partially retracts inward to smoothly transition with the smooth portion.

[0011] Furthermore, the support member includes a support portion and an insulating portion with a larger diameter. The support portion is inserted into the insulating positioning member, so that the insulating portion is snapped into the end of the support member and fills and covers the connection between the terminal and the wire.

[0012] Furthermore, the portion of the terminal located in the insulating part is bent inward to form a bent portion.

[0013] Furthermore, the cover simultaneously covers the connection between the support and the insulating positioning member, as well as the wire.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: Adopting a split structure, the connector is decomposed into independent components such as insulating positioning parts, terminals, support parts, cables, and covers. Through step-by-step assembly and secondary injection molding processes, the complexity of molds and the requirements for manufacturing precision are significantly reduced. This avoids material defects and uneven molding problems commonly found in integral molding, thereby effectively improving product yield and production efficiency, and reducing production costs. The terminals are precisely snapped and fixed on the insulating positioning parts, and the connection between the terminals and the wires is filled and covered by the support parts, ensuring reliable insulation and structural integrity between multiple terminals, enhancing resistance to insertion and extraction stress and mechanical strength, and improving the long-term reliability and electrical safety of the connector. The connector mating process is optimized. The smooth part and boss structure of the insulating positioning parts guide alignment, reducing friction and jamming during mating, improving operational smoothness and user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3This is a schematic diagram of the connection of the support component of this utility model.

[0018] Figure 4 This is a schematic diagram of the terminal and wire connection of this utility model.

[0019] Figure 5 This is a schematic diagram showing the connection between the insulating positioning component and the support component of this utility model.

[0020] Figure 6 This is a cross-sectional view of the insulation portion of this utility model.

[0021] Figure 7 A sectional view of the cover of this utility model.

[0022] Figure 8 This is a schematic diagram illustrating the connection between the insulating positioning component and the terminal of this utility model. Figure 1 .

[0023] Figure 9 This is a schematic diagram illustrating the connection between the insulating positioning component and the terminal of this utility model. Figure 2 .

[0024] Figure 10 This is a schematic diagram showing the connection between the snap-fit ​​block and the second snap-fit ​​groove of this utility model.

[0025] Figure 11 This diagram illustrates the connection between the smooth part, the boss, and the terminal in this utility model. Figure 1 .

[0026] Figure 12 This diagram illustrates the connection between the smooth part, the boss, and the terminal in this utility model. Figure 2 .

[0027] Reference numerals: 1-Insulating positioning component, 11-Groove, 111-First snap-fit ​​groove, 112-Second snap-fit ​​groove, 12-Boss, 13-Smoothing part, 14-Support groove, 2-Terminal, 21-Snap-fit ​​block, 22-Bending part, 3-Support component, 31-Support part, 32-Insulating part, 4-Cable, 41-Wire, 5-Cover component. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] like Figure 1-4As shown, this utility model provides a multi-contact coaxial connector, including an insulating positioning component 1, six terminals 2, a support component 3, a cable 4, and a cover component 5 sleeved on the outermost side, all coaxially assembled and connected. One end of the cable 4 has six exposed wires 41. The front parts of the six terminals 2 are arranged in a circumferential ring array on the outer peripheral wall of the insulating positioning component 1, and the rear parts extend towards the cable 4 and are welded to the six wires 41 one by one, while maintaining an electrical distance between them. The support component 3 is connected between the connection point of the terminals 2 and the wires 41 and the insulating positioning component 1, serving the dual functions of structural support and insulation wrapping.

[0030] During the manufacturing process, the insulating positioning component 1 and the terminal 2 are formed independently. First, the front part of the six terminals 2 is fixed in a ring array on the outer peripheral wall of the insulating positioning component 1, and the rear part is welded to the wire 41 one by one. Then, the support component 3, which wraps around the welding part and provides structural support, is formed through a secondary injection molding process. Finally, the cover 5 is fitted on the outermost part of the entire component, and all components are arranged coaxially to ensure a compact structure and stable electrical performance.

[0031] In existing technologies, most connectors adopt a one-piece molding process. However, when dealing with connectors with more complex structures, such as those with multiple connection terminals 2, extremely high requirements are placed on mold precision, material flow, and molding control. If the one-piece molding process continues to be used, problems such as high manufacturing difficulty and low yield will inevitably occur. In order to solve this problem, this application disassembles the entire connector into multiple components, including the insulating positioning component 1, terminals 2, support component 3, cable 4, and cover component 5. Through separate manufacturing, orderly assembly, and injection molding, reliable production of connectors with complex structures and a large number of terminals is achieved. This setting not only improves product yield and manufacturing efficiency, but also enhances the electrical safety and structural stability of the connector.

[0032] Specifically, such as Figure 3-6As shown, in one embodiment of this utility model, the support member 3 includes an integrally formed support portion 31 and an insulating portion 32. The support portion 31 is a cylindrical structure, and the insulating portion 32 is a cylindrical structure with a larger diameter, forming a stepped shoulder structure. The insulating positioning member 1 has a support groove 14 at its center corresponding to the support portion 31. The opening of the support groove 14 faces rearward. Correspondingly, after the terminals 2 and the wires 41 are welded together, the support member 3 is integrally formed by a secondary injection molding process. The support portion 31 is inserted into the support groove 14, so that the insulating portion 32 is engaged with the rear side of the insulating positioning member 1. At the same time, the insulating portion 32 fills and wraps the connection between the terminals 2 and the wires 41, so that the six sets of terminals 2 and wires 41 can be insulated from each other. In addition, the insertion and cooperation of the support portion 31 and the support groove 14 provides additional longitudinal support for the entire connector, significantly enhancing the mechanical strength and stability of the overall structure.

[0033] Furthermore, such as Figure 6-7 As shown, the portion of terminal 2 near the conductor 41 and corresponding to the insulation portion 32 is bent inward in the radial direction to form a bend 22. This effectively reduces the radial distance of the guide axis of terminal 2, and also reduces the overall radius formed by the six terminals 2. This structural arrangement is due to the limited diameter of the cable 4 and the limited radius formed by the six exposed conductors 41. The inward bending of terminal 2 allows the end of terminal 2 to contact the conductor 41, meeting the connection requirements for stable welding. On the other hand, the reduction in the radius of the terminal 2 allows the radius of the insulation portion 32 used to fill and wrap the connection between terminal 2 and conductor 41 to be reduced simultaneously. Ultimately, the radius of the insulation portion 32 is comparable to the radius of the insulation positioning member 1, which facilitates the smooth installation and assembly of the cover member 5.

[0034] Specifically, such as Figure 7 As shown, in one embodiment of this utility model, the sleeve length of the cover 5 is precisely matched and set so that it can simultaneously cover the snap-fit ​​joint between the insulating part 32 and the insulating positioning part 1, as well as the exposed wire 41 at the end of the cable 4. This structural setting not only strengthens the stability and reliability of the electrical connection through full-coverage protection and effectively avoids interference from the external environment on the connection part, but also tidies up the external structure of the product and further improves the overall assembly aesthetics.

[0035] Specifically, such as Figure 8-10As shown in one embodiment of this utility model, the outer peripheral wall of the insulating positioning member 1 is provided with six grooves 11 arranged in a circumferential annular array. Correspondingly, six protrusions 12 are naturally formed between adjacent grooves 11, and the front parts of the six terminals 2 are correspondingly disposed in the grooves 11. This structural arrangement allows the six terminals 2 on the insulating positioning member 1 to maintain the necessary spacing in the circumferential direction through the physical separation of the grooves 11, thereby achieving reliable insulation between them. On the other hand, the grooves 11 provide precise positioning and wrapping for the terminals 2, making the connection more stable. When the connector and socket are inserted, this can effectively enhance the insertion and extraction stress resistance of the terminals 2 and prevent them from loosening or falling off. In addition, the grooves 11 can also serve as a material escape structure, so that the insulating positioning member 1 avoids deformation, shrinkage and other problems during injection molding, thereby improving the molding quality.

[0036] Furthermore, such as Figure 8-10 As shown, the radial depth of the groove 11 is set to be greater than the radial thickness of the terminal 2. Correspondingly, the height of the boss 12 is also greater than the radial thickness of the terminal 2. This structural arrangement makes the boss 12 form a protruding isolation structure due to its height advantage when the terminal 2 is assembled at the bottom of the groove 11. This significantly increases the creepage distance between adjacent terminals 2 along the insulating surface, effectively suppressing the risk of insulation failure such as leakage and flashover on the insulating surface under the action of an electric field, thereby reliably ensuring the insulation stability and safety of electrical equipment.

[0037] Furthermore, such as Figure 8-10 As shown, the bottom of the two side walls of the groove 11 is provided with two first snap-fit ​​grooves 111 formed by mutual receding and moving away from each other. The depth of the first snap-fit ​​groove 111 corresponds to the thickness of the terminal 2, so that the terminal 2 can be stably snapped into the first snap-fit ​​groove 111. At the same time, the end of the terminal 2 away from the wire 41 extends forward with a snap-fit ​​block 21 with a smaller thickness. The front end of the groove 11 is provided with a second snap-fit ​​groove 112 that matches the snap-fit ​​block 21. This structure, through the multi-directional snap-fit ​​layout of "first snap-fit ​​grooves 111 on both sides + second snap-fit ​​groove 112 at the front end", enables all three sides of the terminal 2 to form an engagement limit with the groove 11, which greatly improves the connection stability between the terminal 2 and the insulating positioning member 1, effectively avoids problems such as loosening or displacement of the terminal after assembly, and ensures the long-term reliability of the electrical connection.

[0038] Specifically, such as Figure 11-12As shown in the figure, in one embodiment of this utility model, the end of the insulating positioning member 1 away from the cable 4 is a hemispherical smooth part 13. This hemispherical end allows the connector and socket to be naturally guided to align during the insertion process through the arc surface, reducing mechanical friction and jamming, and making the insertion action smoother and more fluid. At the same time, as can be seen from the figure, the outer wall of the terminal 2, which is engaged in the groove 11, and the outer wall of the smooth part 13 form a continuous and smooth transition. More importantly, the height of the boss 12 is still higher than the outer wall of the terminal 2 at this time. This height difference creates a precise gap between adjacent bosses 12 that is adapted to the conductive parts of the socket. This allows the conductive parts on the socket corresponding to the terminal 2 to be smoothly inserted into the gap along the smooth part 13. The boss 12 can limit the positioning to ensure accurate alignment and form a tight and stable conductive contact with the terminal 2. Thus, while improving the convenience of insertion, it fully guarantees the reliability of the electrical connection.

[0039] Furthermore, such as Figure 11-12 As shown, it should be noted that the height difference structure of the boss 12 will bring a problem. The boss 12 will also form a stepped height difference with the outer wall of the smooth part 13. This height difference structure makes the insulating positioning member 1 prone to jamming due to the step obstruction during the insertion of the socket, affecting the smoothness of the insertion. In order to solve this problem, the outer wall of the front part of the boss 12 gradually shrinks inward and naturally connects with the outer wall of the smooth part 13 to form a smooth transition. This improvement eliminates the step obstruction on the insertion path, completely avoids the risk of jamming, and ensures that the insertion action of the connector and the socket is always smooth and reliable.

[0040] The innovation of this utility model lies in: First, this invention adopts a split structure, disassembling the connector into independent components such as insulating positioning parts, terminals, support parts, cables, and covers. Through step-by-step assembly and secondary injection molding processes, the complexity of molds and the requirements for manufacturing precision are significantly reduced. This avoids material defects and uneven molding problems commonly found in integral molding, thereby effectively improving product yield and production efficiency, and reducing production costs. Second, split manufacturing allows for precise snap-fit ​​and fixation of terminals on the insulating positioning parts. The support parts fill and cover the connection points between terminals and wires, ensuring reliable insulation and structural integrity between multiple terminals, enhancing resistance to insertion and extraction stress and mechanical strength, and improving the long-term reliability and electrical safety of the connector. Furthermore, this design optimizes the connector mating process. The smooth part and boss structure of the insulating positioning parts guide alignment, reducing friction and jamming during mating, improving operational smoothness and user experience. Simultaneously, the full-coverage protection of the covers further strengthens the sealing and environmental adaptability of the electrical connection, preventing external factors from interfering with the connection points. Overall, this invention simplifies the manufacturing process, improves product consistency, and expands the scope of application while ensuring the high performance of multi-contact coaxial connectors, providing a reliable connection solution for high-density electronic devices.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-contact coaxial connector, characterized in that, The device includes an insulating positioning element (1) arranged coaxially, several terminals (2), a support element (3), a cable (4), and a cover element (5) sleeved on the outermost side. One end of the cable (4) is provided with several wires (41). At least a portion of the several terminals (2) are connected to the insulating positioning element (1) in a ring array. The other end extends to the cable (4) and is connected to the several wires (41) one by one. The support element (3) is connected between the connection point of the terminals (2) and the wires (41) and the insulating positioning element (1).

2. The multi-contact coaxial connector according to claim 1, characterized in that, The outer peripheral wall of the insulating positioning member (1) is provided with a plurality of annular array grooves (11), and a boss (12) is formed between adjacent grooves (11). A plurality of terminals (2) are disposed in a plurality of grooves (11).

3. The multi-contact coaxial connector according to claim 2, characterized in that, The depth of the groove (11) is greater than the thickness of the terminal (2).

4. A multi-contact coaxial connector according to claim 3, characterized in that, The groove (11) has two side walls with a first snap-fit ​​groove (111) formed by mutual retraction. The depth of the first snap-fit ​​groove (111) corresponds to the thickness of the terminal (2), so that the terminal (2) is snapped into the first snap-fit ​​groove (111).

5. A multi-contact coaxial connector according to claim 3, characterized in that, The terminal (2) extends from the end away from the wire (41) with a snap-fit ​​block (21), and the groove (11) is provided with a second snap-fit ​​groove (112) corresponding to the snap-fit ​​block (21).

6. A multi-contact coaxial connector according to claim 2, characterized in that, The end of the insulating positioning member (1) away from the cable (4) is a smooth part (13) with an arc surface.

7. A multi-contact coaxial connector according to claim 6, characterized in that, The terminal (2) snapped into the groove (11) smoothly transitions with the smooth portion (13), and the boss (12) at least partially retracts inward to smoothly transition with the smooth portion (13).

8. A multi-contact coaxial connector according to claim 1, characterized in that, The support member (3) includes a support portion (31) and an insulating portion (32) with a larger diameter. The support portion (31) is inserted into the insulating positioning member (1), so that the insulating portion (32) is snapped into the end of the support member (3) and fills and covers the connection between the terminal (2) and the wire (41).

9. A multi-contact coaxial connector according to claim 8, characterized in that, The portion of the terminal (2) disposed on the insulating part (32) is bent inward to form a bent portion (22).

10. A multi-contact coaxial connector according to claim 1, characterized in that, The cover (5) covers the connection between the support (3) and the insulating positioning member (1) and the wire (41) at the same time.

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