Push-pull self-locking connector

Abstract

The push-pull self-locking connector comprises a plug component and a socket component, the plug component comprises an inner shell and an outer shell, the outer shell partially wraps the surface of the inner shell, the inner shell is provided with a connecting end and a wire bunching end, the wire bunching end extends out of the outer shell, a PCB is arranged in the inner shell, a plurality of elastic pieces are arranged on the surface of the connecting end in the circumferential direction, and the elastic pieces are arranged in the outer shell. The outer shell is provided with a plurality of exposed holes corresponding to the elastic pieces, and the inner shell and the outer shell can generate relative displacement so that the elastic pieces can stretch out of / retract into the exposed holes. The socket component comprises a fixing shell and a terminal block, the terminal block is arranged in the fixing shell, a plurality of clamping grooves corresponding to the elastic pieces are formed in the inner wall face of the fixing shell, and the connecting ends can stretch into the fixing shell so that the elastic pieces can be clamped in the clamping grooves. The technical scheme of the utility model aims to realize faster and more labor-saving connection, has a smaller volume, and also has an electromagnetic shielding function.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a push-pull self-locking connector. Background Art

[0002] Connectors are electronic components used to connect two or more circuits of electrical or optical signals to ensure signal transmission and power supply. They play a key role in electronic equipment, computers, communications and power systems.

[0003] Current high-density transmission connectors on the market are large, often rectangular in shape, with conventional pin and socket inserts. This occupies a large space and requires high insertion and removal forces, making them inconvenient. Furthermore, their overall adaptability is limited, failing to meet diverse customer needs, such as EMC shielding compatibility and the need for simpler and more efficient insertion and removal methods. Utility Model Content

[0004] The main purpose of the utility model is to provide a push-pull self-locking connector, which is designed to enable faster and more labor-saving connections, has a smaller volume, and also has an electromagnetic shielding function.

[0005] To achieve the above-mentioned purpose, the present invention provides a push-pull self-locking connector, comprising:

[0006] A plug component comprising an inner shell and an outer shell, the outer shell partially covering the surface of the inner shell, the inner shell having a connection end and a wire harness end, the wire harness end extending outside the outer shell, a PCB board disposed within the inner shell, a plurality of springs circumferentially disposed on the surface of the connection end, the outer shell having a plurality of exposure holes corresponding to the springs, and the inner shell and the outer shell being capable of relative displacement to extend or retract the springs into the exposure holes;

[0007] The socket component includes a fixed shell and a terminal block, the terminal block is arranged inside the fixed shell, the inner wall of the fixed shell is provided with a plurality of slots corresponding to the spring sheet, and the connecting end can extend into the fixed shell so that the spring sheet is engaged with the slot.

[0008] In one embodiment of the present invention, the outer shell, the inner shell and the fixed shell are all cylindrical structures.

[0009] In one embodiment of the present invention, the inner shell includes a connecting tube, a cable clamp and a tail cap which are sequentially connected from the connecting end to the wiring end, and a metal tube is fitted on the inner wall of the connecting tube.

[0010] In an embodiment of the present invention, fixing members are provided inside the inner shell and the fixed shell for fixing the PCB board and the terminal block.

[0011] In an embodiment of the present invention, a grounding spring is further provided on the inner wall of the fixed shell, and the grounding spring can contact the connecting tube.

[0012] In one embodiment of the present invention, a stop washer is provided on the outer surface of the fixing shell.

[0013] The technical solution of the present utility model is to provide a plurality of spring clips on the plug component. In the absence of external force, the spring clips extend out of the exposed holes. When the bundle end is pushed, the inner shell and the outer shell move relative to each other, and the spring clips are compressed by the edges of the exposed holes and retract into these holes. When the connecting end of the plug component is extended into the fixed shell, the spring clips can be engaged with the card slots to achieve a stable connection. When the plug component needs to be removed, it is only necessary to push the inner shell to retract the spring clips into the exposed holes, and then the plug component can be pulled out. This is very convenient. This push-pull self-locking locking method is more efficient than conventional connectors. The built-in PCB and terminal pieces take up less space and the plug-in and pull-out force is also smaller. In addition, the plug component and the socket component are both cylindrical, which is smaller in size than the rectangular and large-volume connectors currently on the market. In addition, the metal cylinder provided inside the inner shell can provide electromagnetic shielding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 It is a cross-sectional view of the utility model;

[0016] Figure 2 This is a schematic diagram of the socket component structure of the utility model;

[0017] Figure 3 This is an exploded view of the socket component of the present utility model;

[0018] Figure 4 This is a schematic diagram of the plug component structure of the utility model;

[0019] Figure 5 This is an exploded view of the plug component of the present invention.

[0020] Description of Figure Numbers:

[0021] 1. Inner shell; 11. Connecting end; 111. Shrapnel; 12. Wire harness end; 13. Connecting tube; 14. Cable clamp; 15. Tail cap; 2. Outer shell; 21. Exposure hole; 3. PCB board; 4. Fixed shell; 41. Slot; 42. Grounding spring; 43. Stop gasket; 5. Terminal block; 6. Metal tube; 7. Fixing part.

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0024] Reference Figures 1 to 5 The present invention proposes a push-pull self-locking connector, including a plug component and a socket component. The plug component includes an inner shell 1 and an outer shell 2. The outer shell 2 is partially covered on the surface of the inner shell 1. The inner shell 1 has a connecting end 11 and a wire harness end 12, and the wire harness end 12 extends out of the outer shell 2. A PCB board 3 is arranged inside the inner shell 1. A plurality of spring clips 111 are circumferentially arranged on the surface of the connecting end 11. The outer shell 2 is provided with a plurality of exposure holes 21 corresponding to the spring clips 111. The inner shell 1 and the outer shell 2 can produce relative displacement to make the spring clips 111 extend out of / retract into the exposure holes 21; the socket component includes a fixed shell 4 and a terminal block 5. The terminal block 5 is arranged inside the fixed shell 4. The inner wall surface of the fixed shell 4 is provided with a plurality of card slots 41 corresponding to the spring clips 111. The connecting end 11 can extend into the fixed shell 4 so that the spring clips 111 are engaged with the card slots 41.

[0025] As can be understood, the plug assembly consists of an inner shell 1 and an outer shell 2. The outer shell 2 covers the inner shell 1. The inner shell 1 has two ends: a connection end 11 for connecting to the socket assembly, and a wire harness end 12 extending from the outer shell 2 for connecting to cables or wires. A PCB 3 is mounted inside the inner shell 1 to provide electrical connections and circuit functionality.

[0026] A plurality of spring clips 111 are provided around the surface of the connecting end 11, and a plurality of exposure holes 21 are opened in the outer shell 2 corresponding to the spring clips 111, and the inner shell 1 and the outer shell 2 can slide relative to each other to a certain extent. In the absence of external force, the spring clips 111 extend out of the exposure holes 21. When the harness end 12 is pushed, the inner shell 1 and the outer shell 2 move relative to each other, and the spring clips 111 are compressed by the edges of the exposure holes 21 and retract into these holes.

[0027] The socket assembly consists of a fixed shell 4 and a terminal block 5, which is mounted inside the fixed shell 4. The inner wall of the fixed shell 4 is provided with multiple slots 41 corresponding to the spring clips 111. When the connecting end 11 of the plug assembly is inserted into the fixed shell 4, the spring clips 111 can engage with these slots 41, achieving a stable connection. To remove the plug assembly, simply push the inner shell 1, causing the spring clips 111 to retract and expose the holes 21, allowing the plug assembly to be pulled out. This is very convenient. Compared with conventional connectors, this push-pull self-locking locking method is more efficient, the built-in PCB and terminal pieces take up less space, and the insertion and removal force is also smaller.

[0028] Reference Figures 1 to 5 In one embodiment of the present application, the outer shell 2, the inner shell 1, and the fixed shell 4 are all cylindrical structures.

[0029] It can be understood that compared to the rectangular, bulky connectors on the market, this embodiment is cylindrical in appearance, the built-in PCB and terminal pieces take up little space, and the overall volume is smaller than the rectangular type. In addition, the cylindrical shape can evenly distribute the externally applied force, reduce structural deformation caused by local force, and improve the overall mechanical strength and stability. The cylindrical design makes the plug and socket smoother, avoids the jamming phenomenon caused by sharp corners or edges, and improves the user experience. The cylindrical structure can achieve a compact layout in a limited space, which is convenient for installation in various devices, especially in situations where high-density connections are required.

[0030] Reference Figure 5 In one embodiment of the present application, the inner shell 1 includes a connecting tube 13, a cable clamp 14 and a tail cap 15 connected in sequence from the connecting end 11 to the wiring end 12, and a metal tube 6 is fitted on the inner wall of the connecting tube 13.

[0031] It can be understood that the connecting tube 13 is used to install the PCB board 3, and the cable clamp 14 and the tail cap 15 are used to bundle and protect the cables, and increase a certain structural strength. The metal tube 6 can provide electromagnetic shielding for the internal components. The electromagnetic shielding can effectively block the interference of external electromagnetic waves on the internal signals, improve the clarity and stability of the signal, and is particularly important in high-frequency signal transmission. Shielding can protect internal sensitive electronic components from the influence of external electromagnetic fields and reduce the possibility of failure and damage. In a complex electromagnetic environment, a good shielding design can enhance the anti-interference ability of the equipment and ensure the normal operation of the equipment in various environments. Shielding can reduce the electromagnetic radiation generated by the equipment itself, help the equipment comply with international electromagnetic compatibility (EMC) standards, and avoid affecting surrounding equipment.

[0032] Reference Figures 3 to 5 In one embodiment of the present application, fixing members 7 are provided inside the inner shell 1 and the fixed shell 4 for fixing the PCB board 3 and the terminal block 5.

[0033] As can be understood, the PCB 3 is the core of the connector, carrying the circuitry and components. The fasteners 7 ensure that the PCB 3 is securely mounted within the inner housing 1, preventing loosening or damage due to vibration or impact during use. The terminal block 5 contacts the PCB 3, and the fasteners 7 securely secure it, ensuring a reliable and secure connection and preventing malfunctions caused by poor contact. The presence of the fasteners 7 disperses stress and enhances the mechanical stability of the entire device. This is particularly true when experiencing physical shock or vibration, effectively preventing the PCB and terminal block 5 from shifting due to external forces, reducing circuit damage or short circuits caused by positional changes.

[0034] Reference Figures 1 to 3 In one embodiment of the present application, a grounding spring 42 is further provided on the inner wall of the fixed shell 4 , and the grounding spring 42 can contact the connecting tube 13 .

[0035] It can be understood that the main function of the grounding spring 42 is to provide an electrical grounding connection, which helps to direct the electrical noise inside the device into the ground, reduce electromagnetic interference (EMI), and ensure the normal operation of the device. Effective grounding can prevent current leakage or static electricity accumulation, thereby protecting the safety of users and equipment and reducing the risk of electric shock. The elastic design of the grounding spring 42 allows it to adapt to small displacements and vibrations when contacting the connecting tube 13, maintaining continuous contact. This design can ensure the stability and reliability of the grounding connection. Through effective grounding, the grounding spring 42 can guide electromagnetic interference (EMI) to the ground, thereby reducing the impact on other electronic components and improving the electromagnetic compatibility of the entire device. Good grounding can improve the quality of signal transmission and reduce signal interference and loss caused by poor grounding.

[0036] Reference Figures 1 to 3 In one embodiment of the present application, a stop gasket 43 is provided on the outer surface of the fixed shell 4.

[0037] As can be understood, the stop washer 43 is used to limit the movement of workpieces such as nuts on the surface of the fixed shell 4, ensuring its stable position and preventing displacement under vibration or impact. It can also reduce friction, reduce wear, and increase the service life of the system. The stop washer 43 is typically made of rubber, polyurethane, or other elastic materials that can provide good cushioning and wear resistance. In addition, the stop washer 43 can effectively disperse the stress applied to the fixed shell 4, reduce the risk of overload, and extend the service life of the equipment.

[0038] The present invention employs a plurality of spring clips 111 disposed on the plug assembly. In the absence of external force, the spring clips 111 extend out of the exposure holes 21. However, when the harness end 12 is pushed, the inner shell 1 and outer shell 2 move relative to each other, compressing the spring clips 111 against the edges of the exposure holes 21 and retracting them. When the connecting end 11 of the plug assembly is inserted into the fixed shell 4, the spring clips 111 engage with the slots 41, securing the connection. To remove the plug assembly, simply push the inner shell 1, retracting the spring clips 111 back into the exposure holes 21, and the plug assembly can be removed conveniently. This push-pull, self-locking locking mechanism is more efficient than conventional connectors, with the built-in PCB and terminal strips occupying less space and requiring less insertion and removal force. Furthermore, both the plug assembly and the socket assembly are cylindrical, making them smaller than the rectangular, bulky connectors currently on the market. Furthermore, the metal cylinder 6 disposed within the inner shell 1 provides electromagnetic shielding.

[0039] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A push-pull self-locking connector, characterized in that: include: A plug component, comprising an inner shell (1) and an outer shell (2), wherein the outer shell (2) is partially covered on the surface of the inner shell (1), the inner shell (1) has a connection end (11) and a wire bundle end (12), and the wire bundle end (12) extends out of the outer shell (2), a PCB board (3) is arranged inside the inner shell (1), a plurality of spring pieces (111) are circumferentially arranged on the surface of the connection end (11), the outer shell (2) is provided with a plurality of exposure holes (21) corresponding to the spring pieces (111), and the inner shell (1) and the outer shell (2) can generate relative displacement to allow the spring pieces (111) to extend out of / retract into the exposure holes (21); A socket component comprises a fixed shell (4) and a terminal block (5); the terminal block (5) is arranged inside the fixed shell (4); a plurality of slots (41) are provided on the inner wall surface of the fixed shell (4) corresponding to the spring pieces (111); and the connecting end (11) can extend into the fixed shell (4) so ​​that the spring pieces (111) are snap-fitted into the slots (41).

2. A push-pull self-locking connector according to claim 1, characterized in that: The outer shell (2), the inner shell (1) and the fixed shell (4) are all cylindrical structures.

3. A push-pull self-locking connector according to claim 2, characterized in that: The inner shell (1) comprises a connecting tube (13), a cable clamp (14) and a tail cap (15) which are sequentially connected from the connecting end (11) to the wire bundle end (12); a metal tube (6) is fitted on the inner wall of the connecting tube (13).

4. A push-pull self-locking connector according to claim 3, characterized in that: The inner shell (1) and the fixed shell (4) are both provided with fixing parts (7) for fixing the PCB board (3) and the terminal block (5).

5. The push-pull self-locking connector according to claim 4, characterized in that: The inner wall of the fixed shell (4) is further provided with a grounding spring (42), and the grounding spring (42) can contact the connecting cylinder (13).

6. A push-pull self-locking connector according to any one of claims 1 to 5, characterized in that: A stop washer (43) is provided on the outer surface of the fixed shell (4).

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