Circular connector

By using a split-design circular connector, the cylindrical shielding component snaps into the insulating shell, solving the problems of high defect rate and high cost in existing technologies, and achieving efficient production and low-cost connector manufacturing.

CN224458697UActive Publication Date: 2026-07-03SHENZHEN FORMAN PRECISION IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN FORMAN PRECISION IND CO LTD
Filing Date
2025-04-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing circular connectors are injection molded as a single unit, which makes them prone to damage to the outer shell or deformation during the manufacturing process, resulting in a high defect rate and high cost, which is not conducive to mass production.

Method used

It adopts a split design, with a cylindrical shielding component and an insulating shell snapped together. The conductive terminal assembly is located inside the cylindrical shielding component. The outer shell structure is formed by decentralized processing instead of integral injection molding, which simplifies the assembly process.

Benefits of technology

It improves production efficiency, reduces production costs, and ensures the stability and reliability of connectors, making them suitable for a variety of application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a circular connector, comprising a conductive terminal assembly, a cylindrical shield, and a first insulating shell. The cylindrical shield has a first cavity, and the first insulating shell has a second cavity. The second cavity accommodates at least a portion of the cylindrical shield, and the cylindrical shield is snapped into the first insulating shell. The conductive terminal assembly is disposed within the first cavity and abuts against the cylindrical shield. By configuring the outer shell of the circular connector as a first insulating shell and a cylindrical shield, this application replaces the method of integrally injection molding the outer shell of the circular connector. This avoids damage to the outer shell of the circular connector during injection molding, improving the production efficiency of the circular connector. Furthermore, the first insulating shell and the cylindrical shield can be processed separately, facilitating subsequent assembly of the circular connector, further improving production efficiency and reducing production costs.
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Description

Technical Field

[0001] This application relates to the field of connector technology, and more particularly to a circular connector. Background Technology

[0002] A connector is an electromechanical component that connects conductors (such as wires, cables, or printed circuit boards) through appropriate mating components to enable the transmission, connection, and disconnection of current or signals. In electronic devices, connectors act as "bridges" between circuits, ensuring their proper functioning and simplifying system assembly and maintenance. Circular connectors, a common type, have a basic cylindrical structure with a circular mating surface. However, circular connectors are typically formed into a single injection-molded shell. Due to their irregular shape, the shell is easily damaged or deformed during injection molding, resulting in a high defect rate. Furthermore, their complex structure leads to higher manufacturing costs, hindering mass production. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a circular connector, aiming to solve the technical problem that the manufacturing cost of circular connectors in the prior art is high, which is not conducive to mass production.

[0004] To address the above problems, this application provides a circular connector, comprising:

[0005] Conductive terminal assembly;

[0006] A cylindrical shielding component, having a first cavity;

[0007] The first insulating shell has a second cavity, which at least accommodates a portion of the cylindrical shielding component;

[0008] The cylindrical shield is snapped into the first insulating shell, and the conductive terminal assembly is disposed in the first cavity and abuts against the cylindrical shield.

[0009] Furthermore, in the circular connector provided in this application, one end of the cylindrical shield is disposed in the second cavity and abuts against the inner wall of the first insulating shell.

[0010] Furthermore, in the circular connector provided in this application, the inner wall of the first insulating shell is provided with a boss, and one end of the cylindrical shield abuts against the boss.

[0011] Furthermore, in the circular connector provided in this application, the cylindrical shielding component includes a first shielding component and a second shielding component;

[0012] The first shielding component and the second shielding component are fastened together along the radial direction of the cylindrical shielding component, and the first shielding component is snapped into the first insulating shell inside the second cavity.

[0013] Furthermore, in the circular connector provided in this application, the side wall of the first insulating shell is provided with a first opening communicating with the second cavity, and the first shielding member is provided with a structural spring piece that snaps into the first opening.

[0014] Furthermore, in the circular connector provided in this application, one end of the first shielding member abuts against the first insulating shell inside the second cavity, and one end of the second shielding member is provided with an extension portion, which abuts against the first insulating shell inside the second cavity.

[0015] Furthermore, in the circular connector provided in this application, the first shielding member is provided with a first protrusion and a first notch, and the second shielding member is provided with a second protrusion and a second notch;

[0016] The first protrusion engages with the second notch, and the first notch engages with the second protrusion.

[0017] Furthermore, in the circular connector provided in this application, the conductive terminal assembly includes:

[0018] The receiving component is located inside the first cavity and abuts against the cylindrical shielding component;

[0019] At least one conductive terminal extends through the housing along the axial direction of the cylindrical shield.

[0020] Furthermore, in the circular connector provided in this application, the receiving member is provided with a third protrusion and a fourth protrusion along the radial direction of the cylindrical shield, and the side wall of the cylindrical shield is provided with a second opening and a third opening communicating with the first cavity;

[0021] The third protrusion and the fourth protrusion are symmetrical in the axial direction. The third protrusion abuts against the cylindrical shield in the second opening, and the fourth protrusion abuts against the cylindrical shield in the third opening.

[0022] Furthermore, in the circular connector provided in this application, the circular connector also includes a second insulating shell;

[0023] The second insulating shell penetrates through the other end of the cylindrical shield and is fastened to the first insulating shell.

[0024] The circular connector provided in this application includes a conductive terminal assembly, a cylindrical shield, and a first insulating shell. The cylindrical shield has a first cavity, and the first insulating shell has a second cavity. The second cavity accommodates at least a portion of the cylindrical shield. The cylindrical shield is snapped into the first insulating shell, and the conductive terminal assembly is disposed within the first cavity and abuts against the cylindrical shield. By configuring the outer shell of the circular connector as a first insulating shell and a cylindrical shield, this application replaces the method of integrally injection molding the outer shell of the circular connector. This avoids damage to the outer shell of the circular connector during injection molding, improving the production efficiency of the circular connector. Furthermore, the first insulating shell and the cylindrical shield can be processed separately, facilitating subsequent assembly of the circular connector, further improving production efficiency and reducing production costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a circular connector provided in an embodiment of this application;

[0027] Figure 2 An exploded view of the circular connector provided in an embodiment of this application;

[0028] Figure 3 A schematic diagram of the structure of the first insulating shell provided in an embodiment of this application;

[0029] Figure 4 A cross-sectional view of the first insulating housing provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the structure of the conductive terminal assembly provided in the embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the structure of the cylindrical shielding component provided in the embodiments of this application;

[0032] Figure 7 A schematic diagram of the structure of the first shielding component provided in the embodiments of this application;

[0033] Figure 8 This is a schematic diagram of the structure of the second shielding component provided in an embodiment of this application.

[0034] Figure label:

[0035] 10. Conductive terminal assembly; 110. Receiving member; 111. Third protrusion; 112. Fourth protrusion; 120. Conductive terminal; 20. Cylindrical shield; 210. First shield; 211. First protrusion; 212. First notch; 213. Second opening; 214. Structural spring; 220. Second shield; 221. Second protrusion; 222. Second notch; 223. Third opening; 224. Extension; 30. First insulating shell; 301. Boss; 3011. First boss; 3012. Second boss; 302. First opening; 40. Second insulating shell. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0038] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] Furthermore, in this application, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific implementation.

[0041] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a circular connector provided in an embodiment of this application; Figure 2 This is an exploded view of a circular connector provided in an embodiment of this application. Figure 1 and Figure 2 As shown, this application provides a circular connector, which includes:

[0042] Conductive terminal assembly 10;

[0043] The cylindrical shield 20 has a first cavity;

[0044] The first insulating outer shell 30 is provided with a second cavity, which at least accommodates a portion of the cylindrical shielding component 20;

[0045] The cylindrical shield 20 is snapped into the first insulating shell 30, and the conductive terminal assembly 10 is disposed in the first cavity and abuts against the cylindrical shield 20.

[0046] In this application, the conductive terminal assembly 10 is the core part of the circular connector, which can be used to realize electrical connection. At the same time, the conductive terminal assembly 10 is disposed in the first cavity of the cylindrical shield 20 and abuts against the cylindrical shield 20, thereby realizing stable transmission of electrical signals.

[0047] The cylindrical shield 20 is a hollow cylindrical structure with a first cavity inside for accommodating the conductive terminal assembly 10. The main function of the cylindrical shield 20 provided in this application is to provide electromagnetic shielding, preventing external electromagnetic interference from affecting the internal conductive terminal assembly 10, and also preventing internal signals from interfering with external signals, thus ensuring the stability and reliability of signal transmission.

[0048] The first insulating shell 30 is an external protective structure with a second cavity for accommodating part of the cylindrical shield 20. The main function of the first insulating shell 30 is to provide mechanical protection to prevent external physical damage from affecting the internal components, while also serving as insulation to prevent electrical short circuits and other problems.

[0049] Specifically, the cylindrical shield 20 and the first insulating shell 30 are connected together by a snap-fit ​​mechanism. Snap-fit ​​is a common mechanical connection method that uses interlocking clips and slots on the two components to achieve a quick and reliable connection, while also being easy to install and providing a certain level of mechanical strength.

[0050] The conductive terminal assembly 10 is disposed in the first cavity of the cylindrical shield 20 and abuts against the cylindrical shield 20, thereby ensuring a good electrical connection between the conductive terminal assembly 10 and the cylindrical shield 20, and also ensuring the stability of signal transmission.

[0051] The circular connector provided in this application includes a conductive terminal assembly 10, a cylindrical shield 20, and a first insulating shell 30. The cylindrical shield 20 has a first cavity, and the first insulating shell 30 has a second cavity. The second cavity at least partially accommodates the cylindrical shield 20. The cylindrical shield 20 is snapped into the first insulating shell 30. The conductive terminal assembly 10 is disposed within the first cavity and abuts against the cylindrical shield 20. By setting the outer shell structure of the circular connector as the first insulating shell 30 and the cylindrical shield 20, this application replaces the use of a single injection-molded outer shell structure. This avoids damage to the outer shell structure during injection molding, improving the production efficiency of the circular connector. Furthermore, the first insulating shell 30 and the cylindrical shield 20 can be processed separately, facilitating subsequent assembly of the circular connector, further improving production efficiency and reducing production costs. In addition, the circular connector provided in this application fully considers the requirements of electromagnetic shielding, insulation protection, and structural compactness, possessing high practicality and reliability, and meeting the requirements of various application scenarios.

[0052] In some embodiments, one end of the cylindrical shield 20 is disposed in the second cavity and abuts against the inner wall of the first insulating shell 30.

[0053] In this embodiment, the cylindrical shield 20 is not completely enclosed by the first insulating shell 30, but only one end of it is located in the second cavity of the first insulating shell 30, which facilitates connection with other components. The contact between one end of the cylindrical shield 20 and the inner wall of the first insulating shell 30 can be achieved through machining precision, which can prevent the cylindrical shield 20 from loosening or shifting due to vibration or external force during use, thereby ensuring the overall structural stability and reliability of the connector.

[0054] In some embodiments, such as Figure 3 and Figure 4 As shown, the inner wall of the first insulating shell 30 is provided with a boss 301, and one end of the cylindrical shield 20 abuts against the boss 301.

[0055] Specifically, a boss 301 is provided on the inner wall of the first insulating shell 30, which can limit the cylindrical shield 20 and prevent the cylindrical shield 20 from axial or circumferential movement during assembly or use. For example, in some connector designs, the cooperation between the boss 301 and the cylindrical shield 20 can prevent the shield from rotating, thereby ensuring the stability and reliability of the connector.

[0056] Meanwhile, the contact between the boss 301 and the cylindrical shield 20 increases the contact area and mechanical stability between them. This tight contact ensures that the cylindrical shield 20 will not loosen when subjected to external forces or vibrations, thereby improving the overall structural strength of the cylindrical connector.

[0057] In this embodiment, rapid assembly can be achieved by the abutment of the boss 301 with the cylindrical shield 20, reducing assembly steps and time. For example, in some designs, the connector assembly can also be completed quickly by the snap-fit ​​or abutment of the boss 301 with the cylindrical shield 20.

[0058] In some embodiments, such as Figure 6 , Figure 7 and Figure 8 As shown, the cylindrical shield 20 includes a first shield 210 and a second shield 220; wherein the first shield 210 and the second shield 220 are fastened together along the radial direction of the cylindrical shield 20, and the first shield 210 is snapped into the first insulating shell 30 in the second cavity.

[0059] In this application, the cylindrical shield 20 adopts a split design, which can be composed of a first shield 210 and a second shield 220, thus facilitating assembly with internal components (such as the conductive terminal assembly 10) and external components (such as the first insulating shell 30). This application also allows for flexible design of the shape, size, and material of the first shield 210 and the second shield 220 according to different application scenarios and requirements. Furthermore, the first shield 210 and the second shield 220 are engaged along the radial direction of the cylindrical shield 20, ensuring a tight fit and forming a complete cylindrical structure.

[0060] Specifically, the fastening between the first shielding component 210 and the second shielding component 220 can take various forms, such as by setting buckles, slots, elastic pieces, etc., so as to ensure that the shielding components will not loosen during use, and at the same time facilitate disassembly and maintenance.

[0061] Meanwhile, the first shielding component 210 engages with the first insulating shell 30 within the second cavity, ensuring a stable connection between the cylindrical shielding component 20 and the first insulating shell 30. The engagement of the first shielding component 210 with the first insulating shell 30 within the second cavity can employ designs such as snap-fits or slots. For example, a slot can be provided on the inner wall of the first insulating shell 30, while a corresponding snap-fit ​​is provided on the first shielding component 210, achieving fixation through the cooperation of the snap-fit ​​and the slot.

[0062] This application improves assembly efficiency, simplifies the assembly process, reduces assembly steps, and increases production efficiency by fastening the first shield 210 and the second shield 220 together along the radial direction of the cylindrical shield 20, with the first shield 210 engaging with the first insulating shell 30 within the second cavity.

[0063] In some embodiments, such as Figure 3 and Figure 7 As shown, the side wall of the first insulating shell 30 is provided with a first opening 302 that connects to the second cavity, and the first shielding member 210 is provided with a structural spring 214, which is inserted into the first opening 302.

[0064] In this application, the side wall of the first insulating shell 30 is provided with a first opening 302, which communicates with the second cavity, thereby providing a snap-fit ​​position for the structural spring piece 214 of the first shield 210 so as to fix the first shield 210 on the first insulating shell 30. At the same time, the first shield 210 is provided with a structural spring piece 214, which is elastic and can deform during the assembly process and return to its original shape after the assembly is completed.

[0065] Specifically, the structural spring 214 provided in this application, after being inserted into the first opening 302 of the first insulating shell 30, can firmly fix the first shield 210 inside the insulating shell, preventing it from shifting or loosening during use. This not only provides a stable mechanical connection but also simplifies the assembly process, improves production efficiency, and reduces manufacturing costs.

[0066] The design of the structural spring 214 allows for a certain degree of deformation during assembly, making it easier to insert the shielding component into the insulating shell. After assembly, the structural spring 214 can return to its original shape and be tightly locked in the opening, ensuring the reliability of the connection. It also has a certain anti-dislodgement function, preventing the shielding component from accidentally falling off even when subjected to external force.

[0067] In some embodiments, such as Figure 3 and Figure 7 As shown, one end of the first shield 210 abuts against the first insulating shell 30 inside the second cavity, and one end of the second shield 220 is provided with an extension 224, which abuts against the first insulating shell 30 inside the second cavity.

[0068] In this application, the inner wall of the first insulating shell 30 is provided with a boss 301. The boss 301 may include a first boss 3011 and a second boss 3012. The first boss 3011 abuts against one end of the first shield 210 and can also abut against the second shield 220. The second boss 3012 can abut against the extension 224, thereby enabling the circular connector to be quickly positioned and fixed during assembly, reducing assembly steps and time. At the same time, due to the stability of the abutment structure, the circular connector does not require additional fixing measures during use. The first boss 3011 can be a circular annular boss, and the second boss 3012 can be a semi-circular annular boss.

[0069] In some embodiments, such as Figure 6 , Figure 7 and Figure 8 As shown, the first shielding member 210 is provided with a first protrusion 211 and a first notch 212, and the second shielding member 220 is provided with a second protrusion 221 and a second notch 222; wherein, the first protrusion 211 is engaged with the second notch 222, and the first notch 212 is engaged with the second protrusion 221.

[0070] In this application, the first shielding member 210 is provided with a first protrusion 211 and a first notch 212, and the second shielding member 220 is provided with a second protrusion 221 and a second notch 222. During the assembly process of the circular connector, the first protrusion 211 engages with the second notch 222, and the first notch 212 engages with the second protrusion 221, achieving a tight connection between the first shielding member 210 and the second shielding member 220, ensuring that they are tightly bonded in the radial direction to form a complete shielding structure. At the same time, after the first shielding member 210 and the second shielding member 220 are engaged by their respective protrusions and notches, they abut against the inner wall of the first insulating shell 30 as a whole, which not only enhances the shielding effect but also provides additional mechanical stability through the abutment.

[0071] In some embodiments, such as Figure 5 As shown, the conductive terminal assembly 10 includes:

[0072] The receiving component 110 is disposed in the first cavity and abuts against the cylindrical shield 20;

[0073] At least one conductive terminal 120 extends through the housing 110 along the axial direction of the cylindrical shield 20.

[0074] In this application, the receiving member 110 is an important component of the conductive terminal assembly 10. It is disposed within the first cavity of the cylindrical shield 20 and abuts against the cylindrical shield 20. The main function of the receiving member 110 is to fix and accommodate the conductive terminal 120, ensuring the stability and correct position of the conductive terminal 120 inside the connector. At the same time, the conductive terminal 120 passes through the receiving member 110 along the axial direction of the cylindrical shield 20, thereby enabling the conductive terminal 120 to achieve electrical connection inside the connector. Furthermore, the fixing effect of the receiving member 110 ensures that the conductive terminal 120 will not shift or loosen during use.

[0075] Specifically, the contact between the housing 110 and the cylindrical shield 20, and the structure of the conductive terminal 120 penetrating the housing 110, together provide mechanical stability, preventing the conductive terminal 120 from loosening due to external force or vibration during use, thereby ensuring the reliability of the connector. Simultaneously, the tight fit between the housing 110 and the cylindrical shield 20 helps enhance the electromagnetic shielding effect of the connector, thereby effectively reducing the impact of electromagnetic interference on signal transmission and improving the performance of the circular connector.

[0076] In some embodiments, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the receiving member 110 is provided with a third protrusion 111 and a fourth protrusion 112 along the radial direction of the cylindrical shield 20. The side wall of the cylindrical shield 20 is provided with a second opening 213 and a third opening 223 that communicate with the first cavity. The third protrusion 111 and the fourth protrusion 112 are symmetrical in the axial direction. The third protrusion 111 abuts against the cylindrical shield 20 in the second opening 213, and the fourth protrusion 112 abuts against the cylindrical shield 20 in the third opening 223.

[0077] In this application, the receiving member 110 is provided with a third protrusion 111 and a fourth protrusion 112 along the radial direction of the cylindrical shield 20. These two protrusions are symmetrically distributed in the axial direction, which helps to ensure the stability and balance of the receiving member 110 inside the cylindrical shield 20. The side wall of the cylindrical shield 20 is provided with a second opening 213 and a third opening 223 that communicate with the first cavity, which can provide a snap-fit ​​position for the protrusions of the receiving member 110, ensuring a tight fit between the receiving member 110 and the cylindrical shield 20, realizing a fixed connection between the receiving member 110 and the cylindrical shield 20, and ensuring that the two will not loosen or shift during use.

[0078] In some embodiments, such as Figure 1 and Figure 2As shown, the circular connector also includes a second insulating shell 40; wherein the second insulating shell 40 passes through the other end of the cylindrical shield 20 and is fastened to the first insulating shell 30.

[0079] In this application, the primary function of the second insulating shell 40 is to provide additional mechanical protection for the connector. The second insulating shell 40 extends through the other end of the cylindrical shield 20 and engages with the first insulating shell 30 to form a complete protective structure, enhancing the overall structural stability of the connector and ensuring reliable connection even under vibration or shock environments. Simultaneously, the second insulating shell 40 provides electrical insulation, ensuring that the connector will not experience electrical short circuits or leakage during use. Furthermore, the second insulating shell 40 and the first insulating shell 30 can be engaged using various methods, such as snap-fit, slot, or threaded connection.

[0080] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circular connector characterized by comprising: include: Conductive terminal assembly (10); The cylindrical shielding component (20) has a first cavity; The first insulating outer shell (30) is provided with a second cavity, the second cavity at least accommodating a portion of the cylindrical shielding member (20); The cylindrical shield (20) is snapped into the first insulating shell (30), and the conductive terminal assembly (10) is disposed in the first cavity and abuts against the cylindrical shield (20).

2. The circular connector according to claim 1, characterized by One end of the cylindrical shield (20) is located in the second cavity and abuts against the inner wall of the first insulating shell (30).

3. The circular connector of claim 2, wherein, The inner wall of the first insulating shell (30) is provided with a boss (301), and one end of the cylindrical shield (20) abuts against the boss (301).

4. The circular connector of claim 1, wherein, The cylindrical shielding component (20) includes a first shielding component (210) and a second shielding component (220); The first shielding member (210) and the second shielding member (220) are fastened together along the radial direction of the cylindrical shielding member (20), and the first shielding member (210) is engaged with the first insulating shell (30) in the second cavity.

5. The circular connector of claim 4, wherein, The first insulating shell (30) has a first opening (302) on its side wall that communicates with the second cavity. The first shield (210) has a structural spring (214) that is inserted into the first opening (302).

6. The circular connector of claim 4, wherein, One end of the first shielding member (210) abuts against the first insulating shell (30) in the second cavity, and one end of the second shielding member (220) is provided with an extension (224), which abuts against the first insulating shell (30) in the second cavity.

7. The circular connector of claim 4, wherein, The first shielding member (210) is provided with a first protrusion (211) and a first notch (212), and the second shielding member (220) is provided with a second protrusion (221) and a second notch (222); The first protrusion (211) engages with the second notch (222), and the first notch (212) engages with the second protrusion (221).

8. The circular connector according to any one of claims 1-7, wherein, The conductive terminal assembly (10) includes: The receiving component (110) is disposed in the first cavity and abuts against the cylindrical shield (20); At least one conductive terminal (120) extends through the housing (110) along the axial direction of the cylindrical shield (20).

9. The circular connector of claim 8, wherein, The receiving member (110) is provided with a third protrusion (111) and a fourth protrusion (112) along the radial direction of the cylindrical shield (20), and the side wall of the cylindrical shield (20) is provided with a second opening (213) and a third opening (223) communicating with the first cavity; The third protrusion (111) and the fourth protrusion (112) are symmetrical in the axial direction. The third protrusion (111) abuts against the cylindrical shield (20) in the second opening (213), and the fourth protrusion (112) abuts against the cylindrical shield (20) in the third opening (223).

10. The circular connector according to any one of claims 1-7, wherein, It also includes a second insulating outer shell (40); The second insulating shell (40) penetrates the other end of the cylindrical shield (20) and is buckled with the first insulating shell (30).