High-performance circular connector

Abstract

The high-performance circular connector comprises a socket assembly and a plug assembly, the socket assembly comprises a socket shell and a pin assembly, an insertion cavity is formed in the socket shell, and the pin assembly is arranged in the insertion cavity; the plug assembly comprises a plug shell, a jack assembly and a connecting nut, one end of the plug shell wraps the jack assembly, the connecting nut is rotationally connected to the plug shell, a connecting gap is formed between the connecting nut and the outer surface of the plug shell, and the plug shell can extend into the insertion cavity so that the pin assembly can be connected with the jack assembly; and the socket shell extends into the connecting gap and is in threaded connection with the connecting nut. The technical scheme of the utility model aims to optimize the structure of the connector, so that the connector is lighter, supports rapid plugging and unplugging, is convenient to use, and also has an anti-misplug design and an anti-vibration effect.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-performance circular connector. Background Technology

[0002] Currently, circular connectors are widely used in industrial automation, aerospace, and military equipment, where reliability and environmental adaptability are crucial. However, existing connectors still have the following shortcomings: their structural design lacks optimization, resulting in large size; insufficient foolproof design leads to the risk of mis-mating; they lack reliable vibration and torsion resistance structures, easily causing poor contact, and their maintenance is inconvenient. These problems affect the long-term stability and efficiency of the connectors. Utility Model Content

[0003] The main purpose of this utility model is to provide a high-performance circular connector, which aims to optimize the connector structure, making it lighter, supporting quick insertion and removal, convenient to use, and also featuring anti-misinsertion design and vibration resistance.

[0004] To achieve the above objectives, this utility model proposes a high-performance circular connector, comprising:

[0005] A socket assembly, comprising a socket housing and a pin assembly, wherein an insertion cavity is formed inside the socket housing, and the pin assembly is disposed within the insertion cavity;

[0006] A plug assembly includes a plug housing, a socket assembly, and a connecting nut. One end of the plug housing covers the socket assembly. The connecting nut is rotatably connected to the plug housing and forms a connection gap with the outer surface of the plug housing. The plug housing can extend into the insertion cavity to connect the pin assembly and the socket assembly. The socket housing extends into the connection gap and is threadedly connected to the connecting nut.

[0007] In one possible implementation, the insertion cavity wall is provided with a plurality of snap-fit ​​grooves in the circumferential direction, and the plug housing surface is provided with a plurality of snap-fit ​​strips correspondingly.

[0008] In one possible implementation, the spacing between any two adjacent snap-fit ​​slots is not the same.

[0009] In one possible implementation, a retaining ring is protruding from the surface of the plug housing, and a retaining groove is formed on the inner wall of the connecting nut corresponding to the retaining ring, the retaining groove being engaged with the retaining ring.

[0010] In one possible implementation, the plug assembly further includes a sleeve and a tail cap, the sleeve being connected to one end of the plug housing away from the socket assembly, and the tail cap being connected to the sleeve.

[0011] This utility model's technical solution ensures signal stability through precise matching of pins and sockets, and employs a dual-locking mechanism of threaded connection and snap-fit ​​engagement to resist vibration. A unique foolproof structure (asymmetrical snap-fit ​​groove and matching snap-fit ​​strip) ensures a unique insertion angle, preventing damage from incorrect insertion. The rear sleeve and cap combination provides cable fixation and sealing protection. The overall structure supports blind insertion, facilitates maintenance, and is suitable for various harsh environments, meeting the requirements of high-frequency insertion / removal, lightweight design, quick and easy use, space saving, and long-term stable connection under extreme climates. Attached Figure Description

[0012] To more clearly illustrate the technical solutions 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the socket assembly of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of an embodiment of the plug assembly of this utility model;

[0015] Figure 3 This is an exploded view of an embodiment of the high-performance circular connector of this utility model;

[0016] Figure 4 This is a cross-sectional view of an embodiment of the high-performance circular connector of this utility model.

[0017] Explanation of icon numbers:

[0018] 1. Socket housing; 11. Insertion cavity; 12. Snap-fit ​​groove; 2. Pin assembly; 3. Plug housing; 31. Snap-fit ​​strip; 32. Retaining ring; 4. Socket assembly; 5. Connecting nut; 51. Connecting gap; 52. Retaining groove; 6. Sleeve; 7. Tail cap.

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] Reference Figures 1 to 4This utility model proposes a high-performance circular connector, including a socket assembly and a plug assembly. The socket assembly includes a socket housing 1 and a pin assembly 2. An insertion cavity 11 is formed inside the socket housing 1, and the pin assembly 2 is disposed in the insertion cavity 11. The plug assembly includes a plug housing 3, a socket assembly 4, and a connecting nut 5. One end of the plug housing 3 covers the socket assembly 4. The connecting nut 5 is rotatably connected to the plug housing 3 and forms a connection gap 51 with the outer surface of the plug housing 3. The plug housing 3 can extend into the insertion cavity 11 to connect the pin assembly 2 and the socket assembly 4. The socket housing 1 extends into the connection gap 51 and is threadedly connected to the connecting nut 5.

[0022] Understandably, the socket assembly is a fixed end, with its socket housing 1 being an outer metal or rigid plastic shell, and an internal insertion cavity 11. The pin assembly 2 is a metal conductive pin fixed within the insertion cavity 11, i.e., the male contact. The plug assembly is a pluggable end, with one end of its plug housing 3 enclosing a socket assembly 4, i.e., the female contact, and the other end used for connecting cables. The connecting nut 5 is rotatably fitted onto the plug housing 3, leaving an annular gap between it and the housing.

[0023] The plug housing 3 with the socket assembly 4 at the front end is inserted into the insertion cavity 11 of the socket housing 1, so that the pin is electrically connected to the socket. The outer wall of the socket housing 1 will be embedded in the connection gap 51 reserved in the plug assembly. The connecting nut 5 is rotated to engage with the thread on the socket housing 1, so as to achieve mechanical fixation and prevent loosening.

[0024] The above settings ensure high performance, the threaded connection provides high reliability, vibration and tensile strength, and the precise fit of the pins / sockets ensures low contact resistance and signal stability. The design of the plug housing 3 covering the socket assembly 4 and the connection gap 51 greatly optimizes the spatial layout, reduces the overall size of the connector, and saves space. It is quick and convenient to use, and disassembly and installation are very flexible.

[0025] Reference Figures 1 to 2 In one embodiment of this utility model, the wall of the insertion cavity 11 is provided with a plurality of snap-fit ​​grooves 12 in the circumferential direction, and the surface of the plug housing 3 is provided with a plurality of snap-fit ​​strips 31 correspondingly.

[0026] Understandably, multiple longitudinal grooves are machined on the annular inner wall of the insertion cavity 11, and corresponding protruding snap-fit ​​strips 31 are provided on the outer surface of the plug housing 3, with their number and spacing matching the snap-fit ​​grooves 12. This design serves two purposes: firstly, it acts as a guide, allowing the snap-fit ​​strips 31 to slide along the snap-fit ​​grooves 12 when the plug is inserted, ensuring precise alignment of the pins and sockets and preventing damage to the contacts due to incorrect insertion—a key feature of blind-insertion designs; secondly, it resists torsion and rotation, as the engagement of the snap-fit ​​strips 31 with the grooves prevents relative rotation of the plug housing 3 during thread tightening, avoiding cable twisting. The threaded connection of the connecting nut 5 only bears the axial tightening force, while the torsional stress is distributed by the snap-fit ​​structure, improving durability.

[0027] Reference Figures 1 to 2 In one embodiment of this utility model, the spacing between any two adjacent snap-fit ​​slots 12 is not the same.

[0028] Understandably, within the socket insertion cavity 11, the center distance between any two adjacent locking slots 12 is not equal, forming non-uniformly spaced locking slots 12. Correspondingly, the position of the locking strip 31 on the plug housing 3 must strictly match the asymmetrical distribution of the socket locking slots 12. The non-uniformly spaced locking slots 12 define a unique insertion angle. The plug can only be inserted when the locking strip 31 of the plug is completely aligned with the locking slot 12 of the socket. If the user attempts to insert at an incorrect angle, the locking strip 31 will be physically blocked due to the mismatch in spacing.

[0029] The above settings prevent mis-insertion and avoid contact damage due to incorrect angle, especially for high-density connectors with dense pinholes; quick positioning allows operators to confirm the correct insertion direction through tactile feedback without visual alignment.

[0030] Reference Figures 3 to 4 In one embodiment of this utility model, a fixing ring 32 is protruding on the surface of the plug housing 3, and a fixing groove 52 is opened on the inner wall of the connecting nut 5 corresponding to the connecting ring, and the fixing groove 52 is engaged with the fixing ring 32.

[0031] Understandably, the retaining ring 32 is a radially protruding annular or segmented flange on the outer surface of the plug housing 3, located near the end of the socket assembly 4. A corresponding annular groove is machined on the inner wall of the connecting nut 5, the depth of which matches the protrusion height of the retaining ring 32. The retaining ring 32 is embedded in the retaining groove 52, allowing the connecting nut 5 to rotate freely around the plug housing 3, but axial displacement is restricted, preventing the nut from falling off.

[0032] The engagement between the retaining ring 32 and the retaining groove 52 prevents the connecting nut 5 from shifting axially along the plug housing 3 or falling off during insertion and removal, maintaining structural integrity. The connecting nut 5 can rotate independently to achieve threaded locking with the socket housing 1, while the plug housing 3 and the internal socket assembly 4 remain fixed, preventing cable twisting. In a vibrating environment, the engagement between the retaining ring 32 and the groove acts as a secondary safety measure for the threaded connection, preventing the nut from accidentally retracting.

[0033] Reference Figures 2 to 4 In one embodiment of the present invention, the plug assembly further includes a sleeve 6 and a tail cap 7. The sleeve 6 is connected to the end of the plug housing 3 away from the socket assembly 4, and the tail cap 7 is connected to the sleeve 6.

[0034] Understandably, the sleeve 6 is connected to the tail of the plug housing 3, away from the end of the socket assembly 4. Its function is to secure the cable by tightening the nut or clamping mechanism to fix the cable sheath and prevent tensile force from being transmitted to the internal contacts; to buffer stress and disperse the mechanical stress when the cable is bent, protecting the internal solder joints or crimp joints; and to provide a transition seal, forming a sealing base with the tail cap 7. Filler or sealing rings can be placed at the connection. The tail cap 7 is fitted onto the end of the sleeve 6 to restrain the cable and prevent it from unraveling. In addition, the tail cap 7 can be made of electromagnetic shielding material to provide EMI / RFI protection. The sleeve 6 and tail cap 7 can be replaced for different wire diameters or environments. The internal cable can be inspected by unscrewing the tail cap 7 without disassembling the entire plug, which is convenient and quick.

[0035] This utility model's technical solution ensures signal stability through precise matching of pins and sockets, and provides vibration resistance through dual locking of threaded connection and snap-fit ​​engagement. A unique foolproof structure (asymmetric snap-fit ​​groove 12 and matching snap-fit ​​strip 31) ensures a unique insertion angle, preventing damage from incorrect insertion. The rear sleeve 6 and tail cap 7 provide cable fixation and sealing protection. The overall structure supports blind insertion, is easy to maintain, and is suitable for various harsh environments, meeting the requirements of high-frequency insertion and removal, lightweight design, quick and easy use, space saving, and long-term stable connection under extreme climates.

[0036] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-performance circular connector, characterized in that, include: A socket assembly, the socket assembly including a socket housing (1) and a pin assembly (2), wherein an insertion cavity (11) is formed inside the socket housing (1), and the pin assembly (2) is disposed in the insertion cavity (11); The plug assembly includes a plug housing (3), a socket assembly (4), and a connecting nut (5). One end of the plug housing (3) covers the socket assembly (4). The connecting nut (5) is rotatably connected to the plug housing (3) and forms a connection gap (51) with the outer surface of the plug housing (3). The plug housing (3) can extend into the insertion cavity (11) to connect the pin assembly (2) and the socket assembly (4). The socket housing (1) extends into the connection gap (51) and is threadedly connected to the connecting nut (5).

2. The high-performance circular connector according to claim 1, characterized in that, The insertion cavity (11) has a plurality of snap-fit ​​grooves (12) circumferentially arranged on its wall surface, and the plug housing (3) has a plurality of snap-fit ​​strips (31) correspondingly arranged on its surface.

3. The high-performance circular connector according to claim 2, characterized in that, The spacing between any two adjacent snap-fit ​​slots (12) is not the same.

4. The high-performance circular connector according to claim 3, characterized in that, The plug housing (3) has a protruding fixing ring (32) on its surface, and the inner wall of the connecting nut (5) has a fixing groove (52) corresponding to the fixing ring, and the fixing groove (52) is engaged with the fixing ring (32).

5. The high-performance circular connector according to claim 1, characterized in that, The plug assembly further includes a sleeve (6) and a tail cap (7), the sleeve (6) being connected to one end of the plug housing (3) away from the socket assembly (4), and the tail cap (7) being connected to the sleeve (6).

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