A shielded connector

Abstract

The utility model provides a kind of shielding connector, the shielding connector includes connector body, shielding ring and sleeve component, wherein, load part for carrying cable shield net in cable is equipped on connector body;Shielding ring is sleeved on the connector body, and is configured to the radial pre-fixing of the cable shield net is carried out;Sleeve component is rotatably connected with the connector body, and in the rotation process, the shielding ring is compressed in axial direction, so that the cable shield net is fixed on the load part and is conducted with the connector body.The connector has strong self-adaptive ability, the pre-fixing in installation process, reliable shielding state, can solve the problems in cable shielding and shell conduction of field wiring connector in prior art, such as limited shielding wire specification, shielding layer is easily damaged in installation process, cost control is difficult and shielding state is unreliable.

Description

Technical Field

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

[0002] In practical applications of cable connectors, ensuring conductivity between the cable shield and the connector housing is crucial, especially in scenarios with high electromagnetic shielding requirements. For cable connectors used in field wiring, the process of establishing conductivity between the shield and housing must be simple and reliable to guarantee connection effectiveness and stability.

[0003] Currently, there are various forms of connectors for field wiring to achieve cable shielding and shell conductivity; however, each form has certain limitations.

[0004] (1) Screw-clamping type: such as the connector shielding structure described in patent CN202120059573.7, which uses screws to press the shielding wire twisted into a single strand into the metal frame, and then the metal frame is connected to the housing. However, when dealing with thicker shielding wires, the operation becomes significantly more difficult. Because twisting thicker shielding wires into a single strand is difficult in itself, the subsequent process of inserting them into the clamping frame is also very inconvenient, which makes this structure have a significant defect when adapting to thicker shielding wires;

[0005] (2) Spring contact type: such as the connector with shielded conduction structure described in patent CN202211729980.X, which achieves conduction through the elastic contact between the metal spring inside the sleeve and the shielding wire. However, during the sleeve installation process, the metal spring is prone to rotate with the sleeve, which may cause the shielding wire to shift or be damaged. Moreover, it is not possible to visually determine whether the shielding contact is reliable after the sleeve is installed, which poses a hidden connection risk. In addition, since all parts in the shielded conduction circuit must be conductive, this increases the difficulty of cost control to some extent;

[0006] (3) Compression Ring Type: As described in patent CN202021325679.9, the shielding process involves evenly spreading the cable shielding mesh onto the front housing, then tightening the sleeve. The compression ring inside the sleeve moves axially with the sleeve, thus pressing the shielding mesh onto the front housing. Although the grounding ring and the end face of the front housing have ratchet teeth to prevent relative movement between the compression ring and the front housing and avoid displacement of the shielding mesh, the shielding mesh is not pre-fixed on the front housing when the sleeve is rotated, and its state is unstable. In actual operation, factors such as workers' lack of skill in wiring or lack of responsibility can easily lead to the shielding mesh not properly overlapping with the front housing.

[0007] In summary, existing solutions generally suffer from insufficient adaptability, high operational risks, and reliance on manual labor for reliability. There is an urgent need for a new type of shielded connector that is highly adaptable, can be pre-fixed during installation, and has a reliable shielding state. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a shielded connector to solve the problems existing in the field-made connectors in terms of cable shielding and shell conductivity, such as limited compatibility of shielding wire specifications, easy damage to the shielding layer during installation, difficulty in cost control, and unreliable shielding status.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0010] A shielded connector, comprising:

[0011] The connector body has a carrier portion for carrying the cable shielding mesh in the cable;

[0012] A shielding ring is fitted onto the connector body and configured to radially pre-fix the cable shielding mesh;

[0013] The sleeve component is rotatably connected to the connector body and, during rotation, axially presses against the shielding ring, thereby fixing the cable shielding mesh to the bearing portion and making it conductive to the connector body.

[0014] Furthermore, in the connector body, the end that mates with the shielding ring is the front end. The bearing part is composed of the front section of the connector body, and a guide slope is provided on its free end face. The shielding ring is provided with a pressing slope. The pressing slope and the guide slope cooperate to form a pre-fixed structure, so that the cable shielding mesh can be evenly laid on the bearing part. The inner wall of the sleeve component is provided with a pressing slope. The pressing slope and the guide slope cooperate to press the cable shielding mesh.

[0015] Furthermore, the outer peripheral surface of the bearing portion is a stepped surface, and the outer diameter of the front section is larger than the outer diameter of the rear section; the guide slope is provided on the free end face of the front section.

[0016] Furthermore, the shielding ring is cylindrical, including an annular contact portion and multiple elastic cantilever arms extending axially from the contact portion and divided by several slots. The pressing inclined surface is located on the contact portion, and the free end of the elastic cantilever arm contracts inward to form a minimum inner diameter, which is smaller than the outer diameter of the rear section of the bearing portion, so that the elastic cantilever arm can radially press the cable shielding mesh and make it fit against the rear section of the bearing portion.

[0017] Furthermore, an anti-rotation structure is provided between the shielding ring and the connector body.

[0018] Furthermore, the anti-rotation structure includes a protrusion on the bearing portion and a groove on the shielding ring that mates with the protrusion.

[0019] Furthermore, the groove is a slit.

[0020] Furthermore, the end of the shielding ring away from the clamping slope is provided with an outwardly extending flange for guiding the shielding ring to be installed into the connector body.

[0021] Furthermore, the sleeve component is threadedly connected to the connector body, and the clamping stroke of the sleeve component is adaptively adjusted by the thickness of the cable shielding mesh.

[0022] Furthermore, a dust cover is installed on the connector body.

[0023] Beneficial effects:

[0024] As described above, the shielded connector of this utility model has the following beneficial effects:

[0025] (1) A guide ramp is designed on the bearing part, on which the cable shielding mesh can be laid flat; a pressing ramp designed at the mating point between the shielding ring and the end face of the bearing part can pre-fix the cable shielding mesh onto the guide ramp; the extrusion ramp inside the sleeve component cooperates with the guide ramp to press the cable shielding mesh. Since the thickness of the cable shielding mesh determines the size of the gap between the extrusion ramp and the guide ramp that mates with the bearing part and the sleeve component, it is relatively easy to lay flat on the bearing part regardless of the thickness of the cable shielding mesh or the thickness of the shielding wire, and the sleeve component can reliably press the cable shielding mesh. This design effectively solves the problem that the screw-pressing type in the prior art cannot be adapted to thick-gauge shielding wires.

[0026] (2) The shielding ring is designed with multiple elastic cantilever arms. The free ends of the elastic cantilever arms contract inward to form a minimum inner diameter, which is smaller than the outer diameter of the rear section of the bearing part. The elastic cantilever arms spring open to varying degrees depending on the specifications of the cable shielding mesh. Regardless of the size of the cable shielding mesh, a certain radial clamping force can be provided to protect the cable shielding mesh and maintain its position. Even when the sleeve component does not provide clamping force, the cable shielding mesh and the bearing part can still be kept in contact. This not only solves the problems of easy displacement and damage of the shielding layer in the spring contact type and the unstable state of the shielding mesh in the clamping ring type, but also avoids the accidental situation of the sleeve component not being tightened due to worker carelessness, ensuring reliable grounding.

[0027] (3) The shielding ring is designed with at least one groove, and the connector body is designed with at least one protrusion. When the shielding ring is installed, the protrusion is engaged in the groove to prevent rotation. This prevents the shielding ring from rotating when the sleeve component is tightened, thus preventing the cable shielding mesh from shifting due to rotation and ensuring reliable clamping of the shielding wire. Compared with the prior art, this further improves the reliability of the shielding connection.

[0028] (4) The front end of the shielding ring is designed with a circumferential outward flange, which plays a guiding role when pushing it into the connector body for installation, which facilitates the installation operation of the shielding ring and improves the assembly efficiency.

[0029] (5) The sleeve component is threadedly connected to the connector body, and the clamping stroke of the sleeve component is adaptively adjusted by the thickness of the cable shield. This connection method is easy to operate and can automatically adjust the clamping degree according to the actual thickness of the cable shield, ensuring the stability and reliability of the connection.

[0030] (6) A dust cover is installed on the connector body, which can effectively prevent dust and other impurities from entering the connector, avoid adverse effects on connection performance, and extend the service life of the connector.

[0031] In summary, the shielded connector of this utility model effectively solves a number of problems existing in the prior art through a series of ingenious structural designs, and has significant advantages and practical value.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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 these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the connector in this utility model.

[0035] Figure 2 This is an exploded view of the connector and cable in this utility model.

[0036] Figure 3 This is a structural diagram of the connector body, cable, and shielding ring (the shielding ring is not installed in place at this time).

[0037] Figure 4 This is a structural diagram of the connector body, cable, and shielding ring (the shielding ring is already installed at this point).

[0038] Figure 5 yes Figure 4 Sectional view at point I in the middle.

[0039] Figure 6 This is a schematic diagram of a shielding ring.

[0040] The diagram shows the following markings: 1. Dust cover; 2. Connector body; 21. Bearing part; 211. Protrusion; 212. Guide slope; 3. Shielding ring; 31. Contact part; 311. Pressing slope; 32. Flexible cantilever; 33. Flanged edge; 34. Groove; 4. Sleeve component; 41. Extrusion slope; 5. Cable; 51. Cable shielding mesh. Detailed Implementation

[0041] This utility model discloses a shielded connector. Please refer to [reference needed]. Figures 1 to 6 The connector comprises the following parts:

[0042] Connector body 2: It is provided with a support portion 21 for carrying the cable shielding mesh 51 in the cable 5. The design of the support portion 21 plays a fundamental role in achieving a good shielded connection for the entire connector, and it provides a stable placement position for the cable shielding mesh 51.

[0043] Shielding ring 3: Sleeved on the connector body 2, its main function is to radially pre-fix the cable shielding mesh 51, thereby ensuring that the cable shielding mesh 51 remains stable during subsequent operations and will not shift arbitrarily.

[0044] Sleeve component 4: It is rotatably connected to the connector body 2 and presses the shielding ring 3 axially during rotation, thereby fixing the cable shielding mesh 5 to the bearing part 21 and making it conductive to the connector body 2. Through its rotational pressing action, a reliable connection and conduction between the cable shielding mesh 51 and the connector body 2 is achieved.

[0045] The structure of each part will be described in detail below.

[0046] [Connector Body 2]

[0047] The connector body 2 is the basic structure of the entire shielded connector, and its main function is to provide a stable bearing position for the cable shielding mesh 51. In the connector body 2, the end that mates with the shielding ring 3 is the front end, and its front section is the bearing part 21. The free end face of the bearing part 21 is designed with a guide slope 212 to guide the laying of the cable shielding mesh 5.

[0048] The outer peripheral surface of the bearing portion 21 is stepped, with the outer diameter of the front section being larger than that of the rear section. Specifically, the guide ramp 212 is located on the free end face of the front section. The rear section of the bearing portion 21 is a cylindrical section with a constant outer diameter. This structural design helps guide the laying of the cable shielding mesh 51 and, when the sleeve component 4 is tightened, can better distribute pressure, ensuring the reliability of the connection.

[0049] [Shielding Ring 3]

[0050] The shielding ring 3 is a key component for radial pre-fixing of the cable shielding mesh 51. The shielding ring 3 is cylindrical and includes an annular contact portion 31. The rear of the contact portion 31 consists of multiple elastic cantilever arms 32 evenly spaced along the circumference for clamping the cable shielding layer 51. These elastic cantilever arms 32 are formed by several slots 34, and their free ends taper inward to form a minimum inner diameter. This minimum inner diameter is smaller than the outer diameter of the rear section of the bearing portion 21, allowing the free ends of the elastic cantilever arms 32 to radially press against the cable shielding mesh 51 and conform it to the rear section of the bearing portion 21. This design allows the shielding ring 3 to adaptively adjust according to the specifications of the cable shielding mesh 51, providing a stable radial clamping force, protecting the cable shielding mesh 51 while maintaining its own positional stability. Even when the sleeve component 4 has not yet provided clamping force, it ensures that the cable shielding mesh 51 is connected to the bearing portion 21.

[0051] The shielding ring 3 is provided with a pressing slope 311, which cooperates with the guide slope 212 of the bearing part 21 to form a pre-fixed structure, so that the cable shielding mesh 51 can be evenly laid on the bearing part 21. This pre-fixed structure design further improves the uniformity and stability of the cable shielding mesh 51 laying, laying a good foundation for subsequent pressing and conduction operations.

[0052] The end of the elastic cantilever 32 away from the clamping slope 311 is provided with an outwardly extending flange 33, which is used to guide the shielding ring 3 to be installed to the connector body 2, so as to facilitate the installation operation and improve the assembly efficiency.

[0053] [Sleeve component 4]

[0054] The sleeve component 4 is rotatably connected to the connector body 2, and its inner wall is provided with a pressing bevel 41. During the rotation of the sleeve component 4, the pressing bevel 41 cooperates with the guide bevel 212 of the bearing part 21, which can axially press the shielding ring 3, so that the cable shielding mesh 51 is fixed to the bearing part 21 and connected to the connector body 2. The cooperative work of the pressing bevel 41 and the guide bevel 212 ensures that the cable shielding mesh 51 can be effectively pressed onto the bearing part 21 when the sleeve component 4 rotates, achieving a reliable connection.

[0055] Specifically, the sleeve component 4 is threadedly connected to the connector body 2, and the clamping stroke of the sleeve component 4 is adaptively adjusted by the thickness of the cable shielding mesh 51. This threaded connection method is not only convenient to operate, but also automatically adjusts the clamping stroke according to the thickness of the cable shielding mesh 51, ensuring reliable clamping regardless of the thickness of the cable shielding mesh 51.

[0056] [Dust cover 1]

[0057] The dust cover 1 is installed on the connector body 2. Its function is to prevent dust and other impurities from entering the connector, avoiding adverse effects on the connection performance, thereby extending the service life of the connector and playing a good protective role.

[0058] Next, we will introduce the anti-rotation structure in the connector. To prevent the shielding ring 3 from rotating along with the sleeve component 4 when it is rotated and tightened, an anti-rotation structure is provided between the shielding ring 3 and the connector body 2. The anti-rotation structure includes a protrusion 211 on the bearing part 21 and a groove on the shielding ring 3 that mates with the protrusion 211. This design can effectively prevent the cable shielding mesh 51 from shifting due to rotation, ensuring that the cable shielding mesh 51 is reliably clamped, and further improving the reliability of the shielding connection. Specifically, the groove can be designed separately on the shielding ring 3, or the slot 34 can be used as the groove.

[0059] The assembly process of the connector is then described as follows: During assembly, the cable shielding mesh 51 is first evenly laid on the support part 21, and then the shielding ring 3 is fitted onto the cable shielding mesh 51. At this time, the elastic cantilever 32 of the shielding ring 3 will provide a certain radial clamping force according to the specifications of the cable shielding mesh 51, thereby achieving circumferential pre-fixation of the cable shielding mesh 51. Next, the sleeve component 4 is screwed onto the connector body 2. During the tightening process, the extrusion slope 41 of the inner wall of the sleeve component 4 will cooperate with the guide slope 212 of the support part 21, gradually pressing the shielding ring 3, and finally achieving conductivity between the cable shielding mesh 51 and the connector body 2.

[0060] Throughout the installation process, the guide slope 212 of the bearing part 21, the clamping slope 311 of the shielding ring 3, and the extrusion slope 41 of the sleeve component 4 cooperate with each other to ensure that the cable shielding mesh 5 is evenly laid out and reliably clamped; the elastic cantilever 32 and anti-rotation structure of the shielding ring 3 respectively play the roles of stabilizing and fixing the cable shielding mesh 5 and preventing the cable shielding mesh 51 from shifting; the flange 33 of the shielding ring 3 facilitates the installation operation; the threaded connection between the sleeve component 4 and the connector body 2 realizes the adaptive adjustment of the clamping stroke; and the dust cover 1 provides dust protection for the connector. Through the coordinated work of these structures, the shielded connector of this utility model can efficiently and reliably realize the conduction between the cable shielding mesh 51 and the connector body 2, meeting the needs of practical applications.

[0061] The shielded connector provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and specific implementation of this utility model. The above embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model fall within the protection scope of this utility model.

Claims

1. A shielded connector, characterized in that, include: The connector body (2) is provided with a carrier part (21) for carrying the cable shielding mesh in the cable (5). A shielding ring (3) is fitted onto the connector body (2) and configured to pre-fix the cable shielding mesh (51) radially; The sleeve component (4) is rotatably connected to the connector body (2) and presses the shielding ring (3) axially during rotation, so that the cable shielding mesh (51) is fixed to the bearing part (21) and connected to the connector body (2).

2. The shielded connector according to claim 1, characterized in that, In the connector body (2), the end that cooperates with the shielding ring (3) is the front end. The bearing part (21) is composed of the front section of the connector body (2). A guide slope (212) is provided on its free end face. A pressing slope (311) is provided on the shielding ring (3). The pressing slope (311) and the guide slope (212) cooperate to form a pre-fixed structure, so that the cable shielding mesh (51) can be evenly laid on the bearing part (21). The inner wall of the sleeve component (4) is provided with a pressing slope (41). The pressing slope (41) and the guide slope (212) cooperate to press the cable shielding mesh (51).

3. A shielded connector according to claim 2, characterized in that, The outer peripheral surface of the bearing part (21) is a stepped surface, and the outer diameter of the front section is larger than that of the rear section; the guide slope (212) is provided on the free end surface of the front section.

4. A shielded connector according to claim 3, characterized in that, The shielding ring (3) is cylindrical, including an annular contact portion (31) and multiple elastic cantilever arms (32) extending axially from the contact portion (31) and divided by several slots (34). The pressing inclined surface (311) is located on the contact portion (31). The free end of the elastic cantilever arm (32) contracts inward to form a minimum inner diameter, which is smaller than the outer diameter of the rear section of the bearing portion (21), so that the elastic cantilever arm (32) can radially press the cable shielding mesh (51) and make it fit against the rear section of the bearing portion (21).

5. A shielded connector according to claim 4, characterized in that, An anti-rotation structure is provided between the shielding ring (3) and the connector body (2).

6. A shielded connector according to claim 5, characterized in that, The anti-rotation structure includes a protrusion (211) on the bearing part (21) and a groove on the shielding ring (3) that cooperates with the protrusion (211).

7. A shielded connector according to claim 6, characterized in that, The groove is a slit (34).

8. A shielded connector according to claim 1, characterized in that, The shielding ring (3) has an outwardly extending flange (33) at the end away from the clamping slope (311) to guide the shielding ring (3) to be installed onto the connector body (2).

9. A shielded connector according to claim 1, characterized in that, The sleeve component (4) is threadedly connected to the connector body (2), and the pressing stroke of the sleeve component (4) is adaptively adjusted by the thickness of the cable shield (51).

10. The shielded connector according to claim 1, characterized in that, A dust cover (1) is installed on the connector body (2).

Images