Connector and shielding structure thereof

Abstract

The present disclosure relates to a connector and a shielding structure thereof. The connector shielding structure (100) comprises a shielding substrate (110) and a shielding sleeve (120) connected to the shielding substrate (110), wherein the shielding sleeve body (121) comprises a shielding cover plate (1211) and shielding side plates (1212) located on both sides of the shielding cover plate (1211), and the plurality of elastic arms (122) comprise side elastic arms (1222) extending from the shielding side plates (1212), and the elastic arm abutting portions (1223) of the side elastic arms (1222) of the adjacent shielding sleeves (120) abut against each other to form a shielding net. The present disclosure reduces the cost and enhances the signal stability.

Description

Technical Field

[0001] This disclosure relates to the field of electrical connectors, and more specifically to a connector for differential signal transmission and its shielding structure. Background Technology

[0002] In high-speed signal transmission, differential signal terminals are increasingly widely used. However, due to the increase in signal frequency, crosstalk and electromagnetic interference (EMI) between signals have become key factors affecting signal transmission quality. In existing technologies, specialized connectors are required to suppress these interferences. Typical connectors include a housing with a shield inside to prevent mutual interference between adjacent signal terminals. The shield forms a shielded cavity, and a pair of differential signal terminals are housed within a corresponding shielded cavity. However, mutual signal interference and poor signal stability still exist. Furthermore, during assembly, poor mating joints can easily occur after insertion. To address this, a bulge is added to the surface of the shield to enhance the mating force. However, if the bulge is too small, the grounding connection will be too strong; if the bulge is too large, the assembly will be too tight and difficult.

[0003] Existing connectors suffer from poor shielding and difficult shielding assembly, resulting in high production costs. Utility Model Content

[0004] This disclosure aims to address the aforementioned shortcomings of the prior art by providing a connector and its shielding structure that can reduce costs and enhance signal stability.

[0005] To achieve the above objectives, according to one aspect of this disclosure, a shielding structure for a connector is provided, the shielding structure comprising: a shielding substrate; and a shielding sleeve connected to the shielding substrate, the shielding sleeve comprising a shielding sleeve body and a plurality of elastic arms extending from one end of the shielding sleeve body, each of the elastic arms having a convex elastic arm abutment portion at its free end; wherein the shielding sleeve body comprises a shielding cover plate and shielding side plates located on both sides of the shielding cover plate, the plurality of elastic arms comprising lateral elastic arms extending from the shielding side plates, and the elastic arm abutment portions of adjacent lateral elastic arms of adjacent shielding sleeves abutting against each other to form a shielding mesh.

[0006] In this disclosure, the side elastic arms of adjacent shielding sleeves abut against each other to form a shielding mesh, achieving multiple common ground connections. This effectively prevents the common ground connection from breaking, avoids signal interference between them, and enhances signal stability. Furthermore, the abutting force of the elastic arms strengthens the bonding force, ensuring the stability of the common ground connection. In addition, the U-shaped cross-section of the shielding sleeves facilitates the formation of a more complete and continuous shielding structure, better surrounding and sealing the differential signal terminals, and effectively improving the shielding effectiveness and mechanical stability of the shielding structure.

[0007] Furthermore, the shielding sleeve is snapped onto the shielding substrate, the shielding substrate including a first insertion groove, and each of the shielding side plates having a first insertion protrusion extending toward the shielding substrate and engaging with the first insertion groove on its opposite edge to the shielding cover plate, wherein the plurality of elastic arms also include two or more top surface elastic arms extending from the shielding cover plate and spaced apart from each other.

[0008] The shielding sleeve and shielding substrate are connected via a plug-in structure, avoiding welding and reducing welding processes, thus lowering costs and improving production efficiency. Furthermore, the top elastic arm design increases the contact points between the connector and the mating components. This means that during insertion, the elastic arm can apply pressure more evenly, ensuring connection stability and reliability. This stability is crucial for preventing data loss and signal degradation, especially in high-speed signal transmission. In addition, the elastic arm not only secures the connector but also helps form a continuous shielding layer, enhancing the connector's electromagnetic shielding effect. Moreover, this further design, with the top elastic arm working in conjunction with the side elastic arms, forms a more complete electromagnetic shielding network, effectively reducing the impact of external electromagnetic interference and minimizing crosstalk between signals.

[0009] Furthermore, the shielding substrate further includes a second insertion groove extending along the first direction; each of the shielding side plates further includes a second insertion tab extending toward the shielding substrate along the third direction and cooperating with the second insertion groove, wherein the first insertion tab is disposed on the shielding side plate at one end away from the side elastic arm, and the second insertion tab is disposed on the shielding side plate at one end near the side elastic arm.

[0010] The combined use of the second insertion slot and the second insertion tab enhances the mechanical connection between the shielding sleeve and the shielding substrate. This helps ensure that the shielding sleeve remains in place during connector assembly or when subjected to external forces, preventing loosening or misalignment and thus improving the structural stability of the entire connector system. Furthermore, the second insertion tab, located near the end of the side elastic arm, increases the number of common ground connection points in the shielding structure, improves the distribution of these points, and enhances the reliability of the common ground connection.

[0011] Furthermore, the two opposing inner sidewalls of the first and / or the second insertion slot protrude inward to form an inwardly protruding insertion slot, and the edges of the insertion ends of the first and / or the second insertion slots are provided with guide surfaces.

[0012] The inner protruding insertion groove abuts against the side of the corresponding insertion protrusion through the protrusion of its inner sidewall, which can form a tighter insertion fit, enhance the clamping force on the insertion protrusion, and increase the mechanical strength of the insertion structure.

[0013] The guide surface design allows the interlocking protrusions to smoothly enter the interlocking slots, reducing the difficulty of alignment during assembly.

[0014] Furthermore, the shielding cover is provided with an elongated snap finger, and the snap finger has an inwardly convex snap finger abutment for contacting the shielding layer of the cable.

[0015] The elongated spring-shaped contacts formed within the hollowed-out grooves allow for tight contact with the cable's shielding layer, creating an effective electrical connection and enabling a common ground connection. The inward-convex design of the spring-shaped contact portion further enhances this contact, reducing contact resistance and consequently minimizing energy loss and signal attenuation during signal transmission.

[0016] Furthermore, each of the shielding side plates has an edge opposite to the shielding cover plate with a fitting wing for contacting the shielding substrate. Each of the two shielding side plates of each shielding sleeve has a first insertion protrusion and a fitting wing, wherein the two first insertion protrusions and the two fitting wings are arranged diagonally staggered, such that the first insertion protrusion on the shielding side plate of one shielding sleeve is adjacent to the fitting wing on the adjacent shielding side plate of the other shielding sleeve.

[0017] The bonding wing increases the common ground contact point between the shielding sleeve and the shielding substrate. This diagonal staggered arrangement of the first insertion tab and the bonding wing allows the bonding wing to extend a longer distance along the second direction, which facilitates the forming of the bonding wing, thereby increasing the common ground connection contact surface and improving the overall structural stability of the connector, reducing loosening or misalignment during use.

[0018] Furthermore, the shielding structure also includes: an integrated cable terminal assembly, comprising a cable, a pair of differential signal terminals respectively connected to the two core wires of the cable, and an insulator tongue plate molded integrally with the cable and the differential signal terminals, wherein the insulator tongue plate is provided with positioning protrusions; wherein the shielding cover plate is provided with positioning holes that cooperate with the positioning protrusions.

[0019] The use of integrated cable terminal assemblies enhances electrical continuity, reduces connection points, and lowers the possibility of signal attenuation and crosstalk by molding the cable, differential signal terminals, and insulator tongues into a single unit. The insulator tongues help ensure the relative position between the shielding structure and the differential signal terminals. Positioning protrusions are designed on the insulator tongues, and the shielding cover has corresponding positioning holes. This positioning design further ensures the relative position of the integrated cable terminal assembly and the shielding structure, improving the structural stability and shielding effectiveness of the shielding structure.

[0020] According to one aspect of this disclosure, a shielding structure for a connector is provided, the shielding structure comprising: a shielding substrate including a first insertion slot; and a shielding sleeve connected to the shielding substrate, including a first insertion tab extending toward the shielding substrate and engaging with the first insertion slot, wherein the shielding substrate further includes a soldering hole, and the shielding substrate is soldered to the shielding layer of the cable through the soldering hole.

[0021] The placement of the solder holes ensures a continuous and stable ground connection between the shielding substrate and the cable shielding layer. This continuous ground connection is crucial for reducing signal crosstalk and electromagnetic interference (EMI), especially for high-speed differential signal transmission, where a continuous ground path helps maintain signal integrity.

[0022] Furthermore, the welding hole is a tapered hole with a diameter that gradually increases from the outside to the inside.

[0023] The tapered orifice design helps the solder distribute and fill more evenly during melting. As the solder flows in from the narrower part of the orifice, surface tension causes it to spread along the orifice wall into the wider interior space. This ensures the solder fills the entire orifice and forms a good electrical contact with the cable's shielding layer. Furthermore, the tapered orifice's wider inner and narrower outer structure creates a mechanical anchoring effect on the cable shielding layer after the solder cools and solidifies. The solder adheres firmly to the orifice wall, and the orifice's shape ensures a strong bond between the solder and the orifice wall, thereby enhancing the mechanical connection stability between the shielding and the cable.

[0024] According to another aspect of this disclosure, a connector is provided, including the shielding structure described in any of the foregoing claims.

[0025] The shielding structure disclosed herein can reduce connector costs and improve production efficiency, while also enhancing signal stability. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the shielding structure of a connector according to an embodiment of the present disclosure, wherein multiple shielding structures are stacked together such that differential signal terminal pairs in the shielding structure form an array; Figure 2 yes Figure 1 The shielding structure shown is a three-dimensional exploded view from the first perspective. Figure 3 yes Figure 1 The shielding structure shown is a three-dimensional exploded view from a second perspective. Figure 4a yes Figure 1 A three-dimensional structural diagram of the shielding substrate of the shielding structure shown from a first-view perspective; Figure 4b yes Figure 1 A three-dimensional structural diagram of the shielding substrate of the shielding structure shown from a second perspective; Figure 5a yes Figure 1 The shielding structure shown is a three-dimensional structural diagram of the shielding sleeve from a first-view perspective. Figure 5b yes Figure 1 A three-dimensional structural diagram of the shielding sleeve of the shielding structure shown from a second perspective; Figure 6 This is a partial cross-sectional view of a shielding structure according to an embodiment of the present disclosure, showing a cross-sectional view of an integrated cable terminal assembly; Figure 7 This is a three-dimensional structural schematic diagram of a connector according to an embodiment of the present disclosure; Figure 8 yes Figure 7 The diagram shows an exploded three-dimensional structure of the connector.

[0027] In the picture: Detailed Implementation

[0028] The technical solutions of this disclosure will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of the embodiments. Moreover, it should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the spirit of this disclosure are within the scope of protection of this disclosure.

[0029] In the following detailed description, reference is made to the accompanying drawings, which form a part of this specification, wherein specific embodiments that may implement the present application are illustrated by way of example. In this disclosure, directional terms such as “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” and “rear” are used with reference to the orientation of the described drawings. Since the products, structures, or components of embodiments of this disclosure can be placed in different orientations, these directional terms are used only to illustrate the solutions of this disclosure and are not intended to be limiting. It should be understood that other embodiments may be used, and structural or logical changes may be made without departing from the scope of this disclosure. Therefore, the following detailed description should not be construed as limiting the present disclosure.

[0030] Figure 1 This is a perspective structural schematic diagram of a connector shielding structure 100 according to an embodiment of the present disclosure, showing multiple shielding structures 100 stacked together such that differential signal terminal pairs in these shielding structures 100 form an array. Each shielding structure 100 is connected to a cable 131.

[0031] Figure 2 yes Figure 1 The diagram shown is a three-dimensional exploded view of the shielding structure from a first-view perspective. Figure 3 yes Figure 1 The diagram shows a three-dimensional exploded view of the shielding structure from a second perspective. (See also: [reference needed]) Figure 2 and Figure 3 As can be seen, the shielding structure 100 of the connector disclosed herein includes a shielding substrate 110, a plurality of semi-enclosed shielding sleeves 120, and a plurality of cable terminal integrated assemblies 130. Each cable terminal integrated assembly 130 includes a cable 131, a pair of differential signal terminals 132 connected to the cable 131, and an insulator tongue 133 molded integrally with the cable 131 and the pair of differential signal terminals 132. The cable 131 is preferably a groundless cable. The insulator tongue 133 may be made of insulating plastic, for example. A shielding cavity is formed between the shielding substrate 110 and each semi-enclosed shielding sleeve 120 to accommodate the differential signal terminals 132 and to close them in a circumferential direction surrounding the differential signal terminals 132. Each cable terminal integrated assembly 130 is respectively accommodated in a corresponding shielding cavity.

[0032] Figure 4a and 4b The diagrams show three-dimensional structural views of the shielding substrate 110 from a first viewing angle and a second viewing angle. As can be seen, the shielding substrate 110 is generally planar, extending within a plane defined by a first direction X and a second direction Y perpendicular to the first direction X, where the first direction X corresponds to the insertion direction of the connector and the mating connector. The shielding substrate 110 has multiple sets of common ground connection structures arranged side-by-side along the second direction Y for connection with corresponding shielding sleeves 120 and corresponding cable terminal integrated assemblies 130. Each set of common ground connection structures includes a first insertion slot 111 and a second insertion slot 112 extending along the first direction X, and also includes solder holes 114. The function of these structures will be described in detail later.

[0033] Figure 5a and 5b The three-dimensional structural schematic diagrams of the shielding sleeve 120 are shown from a first viewpoint and a second viewpoint, respectively. The shielding sleeve 120 includes a shielding sleeve body 121 extending along a first direction X and a plurality of elastic arms 122 extending from one end of the shielding sleeve body 121 along the first direction X.

[0034] The shielding sleeve body 121 has a roughly U-shaped cross-section and includes a shielding cover plate 1211 and two shielding side plates 1212 located on both sides of the shielding cover plate 1211. Each shielding side plate 1212 has a first insertion protrusion 1213 extending along a third direction Z toward the shielding substrate 110 for engaging with a corresponding first insertion groove 111 on the shielding substrate 110. The third direction Z is perpendicular to the plane containing the shielding substrate 110 defined by the first direction X and the second direction Y.

[0035] Since the shielding sleeve and the shielding substrate are connected through a plug-in structure, the connection between the two is avoided by welding, which reduces the welding process, lowers costs, and improves production efficiency.

[0036] Furthermore, as can be seen from these figures, these elastic arms 122 include top elastic arms 1221 extending from the shielding cover plate 1211 and side elastic arms 1222 extending from the shielding side plate 1212. The free end of each elastic arm 122 forms an outwardly convex elastic arm abutment portion 1223. In this way, the tails of the four elastic arms (two top elastic arms 1221 and two side elastic arms 1222) converge inward.

[0037] The abutment force of the flexible arm enhances the bonding strength and ensures the stability of the common ground connection.

[0038] See also Figure 2 and Figure 3 As can be seen, multiple semi-enclosed shielding sleeves 120 are connected to the shielding substrate 110 in a one-to-one correspondence with multiple sets of common ground connection structures on the shielding substrate 110. Furthermore, the elastic arm abutting portions 1223 of the adjacent side elastic arms 1222 of the adjacent shielding sleeves 120 abut against each other to form a shielding mesh.

[0039] Because the side elastic arms of adjacent shielding sleeves abut against each other to form a shielding mesh, multiple common ground connections are achieved, effectively preventing the common ground connection from breaking, avoiding signal interference between them, and enhancing signal stability. In addition, the shielding sleeve includes a shielding cover plate and shielding side plates. Thus, the shielding sleeve as a whole has a U-shaped cross-section, which is conducive to forming a more complete and continuous shielding structure. It can better surround and seal the differential signal terminals, and can effectively improve the shielding effectiveness and mechanical stability of the shielding structure.

[0040] See still Figure 5a and 5b As can be seen, two spaced-apart top surface elastic arms 1221 extend from the shielding cover 1211. In embodiments not shown, more top surface elastic arms 1221 may also be provided.

[0041] The top elastic arm design increases the contact points between the connector and mating components (such as another connector). This means that during mating, the elastic arm can apply pressure more evenly, ensuring connection stability and reliability. This stability is crucial for preventing data loss and signal degradation, especially in high-speed signal transmission. Furthermore, the elastic arm not only secures the connector but also helps multiple shielding sleeves form a continuous shielding mesh, enhancing the connector's electromagnetic shielding effect. Additionally, the top elastic arm, in conjunction with the side elastic arms, can form a more complete electromagnetic shielding mesh, effectively reducing the impact of external electromagnetic interference (EMI) and minimizing crosstalk between signals.

[0042] Preferably, the two spaced-apart top surface elastic arms 1221 are respectively arranged facing each other with the pair of differential signal terminals 132. By spaced-apart the top surface elastic arms 1221 and respectively facing the differential signal terminals 132, a more effective shielding can be formed for the differential signal terminals 132.

[0043] See still Figure 5a and 5b As can be seen, each shielding side plate 1212 also includes a second insertion tab 1214 extending along the third direction Z toward the shielding substrate 110 for engaging with the second insertion groove 112 on the shielding substrate 110.

[0044] The combined use of the second insertion slot and the second insertion tab enhances the mechanical connection between the shielding sleeve and the shielding substrate, which helps to ensure that the shielding sleeve remains in its position when the connector is assembled or subjected to external forces, preventing loosening or misalignment, thereby improving the structural stability of the entire connector system.

[0045] As can also be seen from the figure, the first insertion tab 1213 is disposed on the shielding side plate 1212 at one end away from the side elastic arm 1222, and the second insertion tab 1214 is disposed on the shielding side plate 1212 at one end close to the side elastic arm 1222.

[0046] The second plug-in protrusion is located at one end near the side elastic arm, which increases the common ground connection point of the shielding structure, improves the distribution of the common ground connection point, and enhances the reliability of the common ground connection.

[0047] See you again Figure 4a and 4b As can be seen in the illustrated embodiment, the two opposing inner sidewalls of the first insertion groove 111 and the second insertion groove 112 on the shielding substrate 110 protrude inward to form an inwardly protruding insertion groove. In an embodiment not shown, only one of the first insertion groove 111 and the second insertion groove 112 may be configured as an inwardly protruding insertion groove.

[0048] The inner protruding insertion groove on the shielding substrate abuts against the side of the corresponding insertion protrusion on the shielding sleeve through the protrusion of its inner sidewall, which can form a tighter insertion fit, enhance the clamping force on the insertion protrusion, and increase the mechanical strength of the insertion structure.

[0049] See still Figure 4b As can be seen, the edges of the insertion ends of the first insertion slot 111 and the second insertion slot 112 on the shielding substrate 110 are formed with guide surfaces 113. In an embodiment not shown, only one of the first insertion slot 111 and the second insertion slot 112 may be provided with a guide surface 113.

[0050] The guide surface design allows the interlocking protrusions to smoothly enter the interlocking slots, reducing the difficulty of alignment during assembly.

[0051] See also Figure 1 and Figure 2 As can be seen, the second insertion tabs 1214 on the adjacent shielding side plates 1212 of the adjacent shielding sleeves 120 (see...) Figure 5a and 5b They are adjacent to each other and are inserted together into the same common second insertion slot 112 on the shielding substrate 110 (see...). Figure 4a and 4b ).

[0052] The second insertion protrusions of adjacent shielding sleeves are inserted into the same second insertion slot, which can form a stable and continuous common ground path. This optimization of the common ground connection can reduce crosstalk between signals and improve signal integrity and system stability.

[0053] See you again Figure 5a and 5b As can be seen, the shielding cover 1211 has two hollowed-out grooves 1216 extending along the first direction X. A long, narrow spring finger 1217 is formed between the two hollowed-out grooves 1216. The spring finger 1217 has an inwardly protruding spring abutment portion 1218 for contacting the shielding layer 131a of the cable 131 (shown in...). Figure 2 and Figure 6 (Middle) Contact. The shielding layer 131a of cable 131 may be an aluminum foil layer.

[0054] The elongated, spring-shaped contacts formed within the hollowed-out grooves allow for direct and tight contact with the cable's shielding layer, creating an effective electrical connection and achieving efficient grounding. The inward-convex design of the spring-shaped contact portion ensures even tighter contact with the cable's shielding layer, reducing contact resistance and thus minimizing energy loss and signal attenuation during signal transmission.

[0055] See also Figure 5a and 5bAs can be seen, each shielding side plate 1212 has an edge opposite to the shielding cover plate 1211 with a bonding wing 1215 extending outward along the second direction Y. The bonding wing 1215 can be bonded together with the shielding substrate 110 to form a large contact area.

[0056] More specifically, each of the two shielding side plates 1212 of each shielding sleeve 120 has a first insertion protrusion 1213 and a fitting wing 1215, wherein the two first insertion protrusions 1213 and the two fitting wing 1215 are arranged diagonally staggered, as shown in the reference. Figure 2 and 3 As can be seen, this allows the first insertion tab 1213 on one of the two adjacent shielding side plates 1212 of the adjacent shielding sleeve 120 to be adjacent to the fitting wing 1215 on the other along the second direction Y.

[0057] The bonding wing increases the common ground contact point between the shielding sleeve and the shielding substrate. This diagonal staggered arrangement of the first insertion tab and the bonding wing allows the bonding wing to extend a longer distance along the second direction, which facilitates the forming of the bonding wing, thereby increasing the common ground connection contact surface and improving the overall structural stability of the connector, reducing loosening or misalignment during use.

[0058] See you again Figure 4a and 4b See also Figure 2 As can be seen, the welding holes 114 on the shielding substrate 110 are used to weld the shielding layer 131a exposed after the insulation sheath of the cable 131 is removed together.

[0059] Solder balls / solder paste can be inserted into the solder holes to solder the aluminum foil of the shielding sheet and the groundless cable, increasing grounding reliability. The use of a groundless cable, compared to a grounded cable, reduces the space occupied by the cable, enabling connector miniaturization and stable high-speed signal transmission. The placement of the solder holes ensures a continuous and stable common ground connection between the shielding substrate and the cable shielding layer. This continuous common ground connection is crucial for reducing signal crosstalk and electromagnetic interference (EMI), especially for high-speed differential signal transmission; a continuous common ground path helps maintain signal integrity.

[0060] Preferably, from Figure 4b As can be seen, the welding hole 114 is located between the two first insertion slots 111 arranged diagonally on the shielding substrate 110. This optimizes the layout of the common ground connection point between the shielding substrate and the shielding sleeve of the shielding structure, and further improves the shielding effect of the shielding structure.

[0061] Preferably, the welding holes 114 on the shielding substrate 110 are arranged opposite to the spring-loaded contact portions 1218 of the spring-loaded fingers 1217 on the shielding sleeve. This arrangement of the welding holes and spring-loaded contact portions forms a direct and continuous common ground path, enabling multi-faceted common ground connection of the cable and improving the reliability of the common ground connection. Furthermore, the welding of the welding holes to the cable shielding layer provides a solid electrical connection point, while the spring-loaded contact portion ensures stable contact with this welding point; this dual connection mechanism further enhances the reliability of the common ground connection. Moreover, the relative arrangement of the spring-loaded contact portion and the welding holes makes the contact between the shielding sleeve and the shielding substrate tighter, improving the overall mechanical stability of the shielding structure.

[0062] In an embodiment not shown, the welding hole 114 is configured as a tapered hole with a diameter that gradually increases from the outside to the inside (towards the cable direction).

[0063] The tapered hole design facilitates more even distribution and filling of the solder during melting. As the solder flows in from the narrower part of the hole, it diffuses along the hole wall into the wider internal space under the influence of surface tension. This ensures that the solder fills the entire hole and forms a good electrical contact with the cable's shielding layer. Furthermore, the tapered hole's wider inner and narrower outer structure creates a mechanical anchoring effect on the cable's shielding layer after the solder cools and solidifies. The solder adheres firmly to the hole wall, and the hole's shape ensures a strong bond between the solder and the hole wall, thereby enhancing the mechanical connection stability between the shielding sheet and the cable. Therefore, this disclosure achieves a reliable connection between the aluminum foil and the shielding sheet of a groundless cable through a tapered welding hole and pre-placed solder, solving the problems of easy shielding layer detachment and discontinuous conductivity caused by traditional elastic crimping / adhesive bonding, and is particularly suitable for high-frequency signal transmission.

[0064] In an embodiment not shown, the solder hole 114 is further configured with a groove around its periphery. The groove around the solder hole allows the molten solder to fill the groove, forming a mechanical anchoring structure that makes the connection between the shielding substrate and the cable more secure.

[0065] Figure 6 This is a partial cross-sectional view of the shielding structure according to an embodiment of the present disclosure, showing the cross-sectional structure of the integrated cable terminal assembly. It can be seen that the two core wires 131b of the cable 131 are respectively connected to a pair of differential signal terminals 132. See also... Figure 3 and Figure 5b As can be seen, the insulator tongue plate 133 is provided with a positioning protrusion 1339, and the shielding cover plate 1211 is provided with a positioning hole 1219 that cooperates with the positioning protrusion 1339.

[0066] The integrated cable terminal assembly molds the cable 131, differential signal terminal 132, and insulator tongue 133 into a single unit, enhancing electrical continuity, reducing connection points, and lowering the possibility of signal attenuation and crosstalk. Furthermore, the insulator tongue helps ensure the relative position between the shielding structure and the differential signal terminal. Additionally, the insulator tongue 133 is designed with positioning protrusions 1339, and the shielding cover 1211 has corresponding positioning holes 1219. This positioning design further ensures the relative position between the integrated cable terminal assembly and the shielding structure, improving the structural stability and shielding effectiveness of the shielding structure.

[0067] In this embodiment, preferably, the positioning protrusion 1339 and the positioning hole 1219 are rectangular. The rectangular shape can prevent the components from rotating or shifting after assembly, ensuring a stable connection between the integrated cable terminal assembly 130 and the shielding sleeve 120.

[0068] See also Figure 6 As can be seen, the differential signal terminal 132 includes a terminal rear section 1321 and a terminal front section 1322. The terminal rear section 1321 is connected to the core wire 131b of the cable 131, and the terminal front section 1322 extends forward from the terminal rear section 1321 to form a terminal contact surface.

[0069] The insulator tongue 133 includes a front tongue section 1332 and a rear tongue section 1331. The front tongue section 1332 is molded integrally with the front terminal section 1322, exposing the terminal contact surface. The rear tongue section 1331 molds the core wire 131b of the cable 131, the rear terminal section 1321, and the front tongue section 1332 into one piece.

[0070] The dual-segment construction of the insulator tongue plate allows for segmented molding, which improves the reliability of the cable-terminal connection in the integrated cable terminal assembly and ensures the mechanical strength of the entire assembly.

[0071] Figure 7 This is a three-dimensional structural schematic diagram of a connector according to an embodiment of the present disclosure. Figure 8 yes Figure 7 The diagram shows an exploded three-dimensional structure of the connector.

[0072] See Figure 7 and 8The connector disclosed herein includes a shielding structure 100, an insulating core 200, and a connector housing 300. Multiple shielding structures 100 are stacked together, such that the differential signal terminal pairs within these shielding structures 100 form an array. The insulating core 200 includes a first covering insulator 210 and a second covering insulator 220. The first covering insulator 210 is used to mold each shielding structure integrally, and the second covering insulator 220 is used to mold each first covering insulator integrally molded with the shielding structure integrally. The integral insulating core is housed within the connector housing 300, which is provided with cable clamps for securing cables. This connector, employing the shielding structure of this disclosure, combines shielding, securing, and grounding requirements, making it suitable for high-speed differential signal transmission scenarios.

[0073] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from the spirit and scope of this disclosure. Therefore, if such modifications and variations to this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A shielding structure (100) for a connector, characterized in that, The shielding structure (100) includes: Shielding substrate (110); A shielding sleeve (120) is connected to the shielding substrate (110). The shielding sleeve (120) includes a shielding sleeve body (121) and a plurality of elastic arms (122) extending from one end of the shielding sleeve body (121). The free end of each elastic arm (122) forms an outwardly protruding elastic arm abutment (1223). The shielding sleeve body (121) includes a shielding cover plate (1211) and shielding side plates (1212) located on both sides of the shielding cover plate (1211). The plurality of elastic arms (122) includes side elastic arms (1222) extending from the shielding side plates (1212). The elastic arm abutting portions (1223) of the adjacent side elastic arms (1222) of the adjacent shielding sleeves (120) abut against each other to form a shielding mesh.

2. The shielding structure (100) according to claim 1, characterized in that, The shielding sleeve (120) is snapped onto the shielding substrate (110), the shielding substrate (110) includes a first insertion groove (111), and each of the shielding side plates (1212) has a first insertion tab (1213) on its edge opposite to the shielding cover plate (1211) extending toward the shielding substrate (110) and engaging with the first insertion groove (111), wherein the plurality of elastic arms (122) further include two or more top surface elastic arms (1221) extending from the shielding cover plate (1211) and spaced apart from each other.

3. The shielding structure (100) according to claim 2, characterized in that, The shielding substrate (110) also includes a second insertion slot (112). Each of the shielding side plates (1212) further includes a second insertion tab (1214) extending toward the shielding substrate (110) and engaging with the second insertion slot (112). The first insertion tab (1213) is disposed on the shielding side plate (1212) at one end away from the side elastic arm (1222), and the second insertion tab (1214) is disposed on the shielding side plate (1212) at one end close to the side elastic arm (1222).

4. The shielding structure (100) according to claim 3, characterized in that, The two opposing inner sidewalls of the first insertion groove (111) and / or the second insertion groove (112) protrude inward to form an inwardly protruding insertion groove. The edges of the insertion ends of the first insertion slot (111) and / or the second insertion slot (112) are formed with guide surfaces (113).

5. The shielding structure (100) according to any one of claims 1 to 4, characterized in that, The shielding substrate (110) further includes a soldering hole (114), through which the shielding substrate (110) is soldered to the shielding layer (131a) of the cable (131), and / or The shielding cover plate (1211) is provided with a long strip-shaped spring finger (1217), and the spring finger (1217) has an inwardly protruding spring finger abutment (1218) for contacting the shielding layer (131a) of the cable (131).

6. The shielding structure (100) according to any one of claims 2 to 4, characterized in that, Each of the shielding side plates (1212) also has an edge opposite to the shielding cover plate (1211) with a bonding flap (1215) for contacting the shielding substrate (110). Each of the two shielding side plates (1212) of each shielding sleeve (120) has a first insertion protrusion (1213) and a fitting wing (1215), wherein the two first insertion protrusions (1213) and the two fitting wing (1215) are arranged diagonally and alternately, such that the first insertion protrusion (1213) on the shielding side plate (1212) of one shielding sleeve (120) is adjacent to the fitting wing (1215) on the adjacent shielding side plate (1212) of the other shielding sleeve (120).

7. The shielding structure (100) according to any one of claims 1 to 4, characterized in that, Also includes: The integrated cable terminal assembly (130) includes a cable (131), a pair of differential signal terminals (132) respectively connected to two core wires (131b) of the cable (131), and an insulating tongue plate (133) that molds the cable (131) and the differential signal terminals (132) into one piece. The insulator tongue plate (133) is provided with a positioning protrusion (1339). The shielding cover (1211) is provided with a positioning hole (1219) that cooperates with the positioning protrusion (1339).

8. The shielding structure (100) of the connector, characterized in that, The shielding structure (100) includes: The shielding substrate (110) includes a first insertion slot (111). The shielding sleeve (120), connected to the shielding substrate (110), includes a first insertion tab (1213) extending toward the shielding substrate (110) and engaging with the first insertion slot (111). The shielding substrate (110) further includes a welding hole (114), through which the shielding substrate (110) is welded to the shielding layer (131a) of the cable (131).

9. The shielding structure (100) according to claim 8, characterized in that, The welding hole (114) is a tapered hole with the diameter gradually increasing from the outside to the inside.

10. A connector, characterized in that, Includes the shielding structure (100) according to any one of claims 1 to 9.

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