A shielding sheet, cable assembly, and cable connector

Abstract

The application provides a shielding sheet, a cable assembly and a cable connector, and belongs to the field of connecting devices. The shielding sheet comprises a sheet body and a contact structure arranged on the sheet body. The sheet body is provided with a window for forming the contact structure. The contact structure comprises two side limiting bodies which are integrally connected to the side edges of the window and are arranged at intervals. The contact structure further comprises an abutting body which is integrally connected to the window edge where the side limiting bodies are located. The abutting body extends to the opposite side window edge and is integrally connected to the edge. The side limiting body has a vertical extension. The abutting body is located between the two side limiting bodies and has a contact protrusion on the abutting body, which protrudes towards the extension direction of the vertical extension and is used for contacting the cable shielding layer. The cable assembly comprises the shielding sheet. The cable connector comprises the cable assembly. The application solves the technical problem of poor contact quality between the cable shielding layer and the shielding sheet in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of connection devices, and in particular relates to a shielding sheet, a cable assembly, and a cable connector. Background Technology

[0002] High-speed cable connectors are mainly used in fields with extremely high requirements for signal integrity, anti-interference ability and transmission rate, such as large communication equipment and ultra-high performance servers.

[0003] Chinese invention patent application CN119070085A discloses a connector, which is a high-speed cable connector. The connector includes a housing and multiple sheet-like terminal modules mounted within the housing. Each terminal module includes an insulator and multiple pairs of differential terminals disposed within the insulator. Shielding sheets are provided on both sides of the insulator. The shielding sheets provide shielding for the conductive core and differential terminals of the cable stripped from the shielding layer. To ensure good shielding performance, the shielding sheets and the cable shielding layer need to be electrically connected to each other.

[0004] Regarding the specific structure for the conduction between the shielding sheet and the cable shielding layer, the solution provided by this invention patent is to integrally machine a clamping plate with a U-shaped groove on both sides of the shielding sheet, and to clamp the clamping plate onto the outside of the cable shielding layer during assembly. The area on the clamping plate at the bottom of the U-shaped groove has less material, making it difficult to fold it from the shielding sheet to a completely vertical angle. If this area is tilted, the edge is prone to contacting the cable shielding layer and cutting it.

[0005] Another Chinese invention patent application, CN120341656A, discloses a cable connector. This connector features a rigid lower contact structure on one shielding plate that contacts the cable shielding layer, and a highly elastic upper grounding spring and two side grounding springs on the other shielding plate that also contact the cable shielding layer. Furthermore, the upper and side grounding springs, along with the lower contact structure, can surround the same location around the cable. While this design provides a relatively large contact area between the upper and side grounding springs and the cable shielding layer, preventing damage, the relatively low rigidity of these springs limits the application of sufficient contact pressure to the cable on the corresponding sides. This prevents the cable surface from conforming to its shape, resulting in a small contact area between the upper and side grounding springs and the cable shielding layer, thus affecting the reliability and stability of the contact between the cable shielding layer and the shielding plate. Summary of the Invention

[0006] The purpose of this invention is to provide a shielding sheet to solve the technical problem of poor contact quality between the cable shielding layer and the shielding sheet in the prior art.

[0007] Another object of the present invention is to provide a cable assembly to solve the same technical problem.

[0008] Another object of the present invention is to provide a cable connector to solve the same technical problem.

[0009] To achieve the above objectives, the technical solution for the shielding sheet provided by this invention is as follows: A shielding sheet includes a sheet body and a contact structure disposed on the sheet body for contacting and communicating with a cable shielding layer. The sheet body has a window for forming the contact structure. The contact structure includes two side limiting bodies integrally connected to one side edge of the window and arranged at intervals, and an abutment body integrally connected to the window edge where the side limiting bodies are located. The abutment body extends to the opposite side edge of the window and is integrally connected to the edge. The side limiting bodies have vertical extension portions that are perpendicular to the sheet body of the shielding sheet and are used to clamp cables from both sides respectively. The abutment body is located between the two limiting bodies and has a contact protrusion that protrudes in the direction of the vertical extension portion for contacting the cable shielding layer.

[0010] The beneficial effects are as follows: The shielding sheet provided by this invention is an improvement over the prior art. This solution features abutment bodies connected to both sides of the window on the shielding sheet, with contact protrusions on these abutment bodies to contact the cable shielding layer. The abutment bodies are simply supported beam structures with high rigidity, providing sufficient contact pressure when in contact with the cable shielding layer. Furthermore, the extension direction of the abutment bodies is the same as the cable's direction, therefore the area of ​​the abutment body in contact with the cable shielding layer has no sharp edges, making it less likely to cut the cable shielding layer. In summary, this solution allows the shielding sheet to contact the cable shielding layer using highly rigid abutment bodies without cutting the cable shielding layer, thereby improving the reliability and stability of the contact between the cable shielding layer and the shielding sheet, and ultimately improving the contact quality between the two.

[0011] As a further improvement, the position of the contact protrusion corresponds to the position of the vertical extension, so that the contact protrusion and the two vertical extensions can be distributed circumferentially around the cable at the same position during use.

[0012] The beneficial effects are: when the side limiting body is engaged with both sides of the cable, the cable will be squeezed and contracted in the left and right direction, while expanding slightly in the up and down direction. The contact protrusion of the abutment body can provide strong constraint in the up and down direction, limiting the expansion of the cable in the up and down direction. This causes the cable itself to deform according to its shape, increasing the contact area between the cable shielding layer and the side limiting body and the abutment body, further enhancing the contact reliability and stability between the cable shielding layer and the shielding sheet, and improving the contact quality.

[0013] As a further improvement, the contact protrusion is positioned biased towards one end of the abutment body, which is the end of the abutment body near the side limiting body.

[0014] The beneficial effect is that this arrangement allows the contact protrusion to be close to the side limiting body, thus facilitating the alignment of the vertical extension of the side limiting body with the contact protrusion.

[0015] As a further improvement, a partition seam is provided on the edge of the window between the side limiting body and the abutment body to separate the two.

[0016] The beneficial effects are: this solution allows the side limiting body and the abutment body to be separated, and it also allows the contact protrusion on the abutment body to be closer to the edge of the window, thus achieving the corresponding setting of the contact protrusion and the vertical extension.

[0017] As a further improvement, the side limiting body also has a coplanar extension that is directly connected to the edge of the window and is coplanar with the sheet body. The vertical extension is connected to the end of the coplanar extension by a vertical bending structure, and there is a gap between the coplanar extension and the abutment body.

[0018] The beneficial effects are: after setting the coplanar extension, on the one hand, the vertical extension can be moved away from the edge of the window, thereby realizing the setting of the vertical extension and the contact protrusion; on the other hand, when the vertical extension is subjected to force, the force is transmitted to the coplanar extension, causing the coplanar extension to undergo a small-amplitude torsional deformation, thereby providing a certain amount of deformation capacity to the side limit body to adapt to different models and sizes of cables within a certain range.

[0019] As a further improvement, the surface on the side limiting body that comes into contact with the cable shielding layer is an inclined surface, and the inclined surfaces of the two limiting bodies are combined to form a flared guide structure for guiding the cable to be inserted.

[0020] The beneficial effects are: on the one hand, the edge cable can be inserted, and on the other hand, after the cable is inserted between the two limiting bodies, the inclined plane can be used to gradually tighten the cable.

[0021] To achieve the above objectives, the technical solution for the cable assembly provided by this invention is as follows: A cable assembly includes an insulator, a cable embedded in the insulator, and a first shielding plate and a second shielding plate respectively fixed on both sides of the insulator. The first shielding plate includes a plate body and a contact structure disposed on the plate body for contacting and communicating with the cable shielding layer. The plate body is provided with a window for forming the contact structure. The contact structure includes two side limiting bodies integrally connected to one side edge of the window and arranged at intervals, and an abutment body integrally connected to the window edge where the side limiting bodies are located. The abutment body extends to the opposite side edge of the window and is integrally connected to the edge. The side limiting bodies have vertical extension portions perpendicular to the plate body of the shielding plate and for clamping the cable from both sides respectively. The abutment body is located between the two limiting bodies and has a contact protrusion protruding in the direction of the vertical extension portion for contacting the cable shielding layer. The second shielding plate is provided with a contact platform for abutting against the cable shielding layer.

[0022] The beneficial effects are as follows: The cable assembly provided by this invention is an improvement upon existing technology. This solution features abutment bodies connected to both sides of the window on the shielding sheet, with contact protrusions on these bodies to contact the cable shielding layer. The abutment bodies are simply supported beam structures with high rigidity, providing sufficient contact pressure when in contact with the cable shielding layer. Furthermore, the extension direction of the abutment bodies is the same as the cable's direction, thus eliminating sharp edges in the area where they contact the cable shielding layer, making it less likely to cut the shielding layer. In summary, this solution allows the shielding sheet to contact the cable shielding layer using highly rigid abutment bodies without cutting it, thereby improving the reliability and stability of the contact between the cable shielding layer and the shielding sheet, and ultimately improving the contact quality.

[0023] As a further improvement, the position of the contact protrusion corresponds to the position of the vertical extension, so that the contact protrusion and the two vertical extensions can be distributed circumferentially around the cable at the same position during use.

[0024] The beneficial effects are: when the side limiting body is engaged with both sides of the cable, the cable will be squeezed and contracted in the left and right direction, while expanding slightly in the up and down direction. The contact protrusion of the abutment body can provide strong constraint in the up and down direction, limiting the expansion of the cable in the up and down direction. This causes the cable itself to deform according to its shape, increasing the contact area between the cable shielding layer and the side limiting body and the abutment body, further enhancing the contact reliability and stability between the cable shielding layer and the shielding sheet, and improving the contact quality.

[0025] As a further improvement, the contact protrusion is positioned biased towards one end of the abutment body, which is the end of the abutment body near the side limiting body.

[0026] The beneficial effect is that this arrangement allows the contact protrusion to be close to the side limiting body, thus facilitating the alignment of the vertical extension of the side limiting body with the contact protrusion.

[0027] As a further improvement, a partition seam is provided on the edge of the window between the side limiting body and the abutment body to separate the two.

[0028] The beneficial effects are: this solution allows the side limiting body and the abutment body to be separated, and it also allows the contact protrusion on the abutment body to be closer to the edge of the window, thus achieving the corresponding setting of the contact protrusion and the vertical extension.

[0029] As a further improvement, the side limiting body also has a coplanar extension that is directly connected to the edge of the window and is coplanar with the sheet body. The vertical extension is connected to the end of the coplanar extension by a vertical bending structure, and there is a gap between the coplanar extension and the abutment body.

[0030] The beneficial effects are: after setting the coplanar extension, on the one hand, the vertical extension can be moved away from the edge of the window, thereby realizing the setting of the vertical extension and the contact protrusion; on the other hand, when the vertical extension is subjected to force, the force is transmitted to the coplanar extension, causing the coplanar extension to undergo a small-amplitude torsional deformation, thereby providing a certain amount of deformation capacity to the side limit body to adapt to different models and sizes of cables within a certain range.

[0031] As a further improvement, the surface on the side limiting body that comes into contact with the cable shielding layer is an inclined surface, and the inclined surfaces of the two limiting bodies are combined to form a flared guide structure for guiding the cable to be inserted.

[0032] The beneficial effects are: on the one hand, the edge cable can be inserted, and on the other hand, after the cable is inserted between the two limiting bodies, the inclined plane can be used to gradually tighten the cable.

[0033] As a further improvement, the position of the contact platform corresponds to the position of the contact protrusion on the first shielding plate, so that the contact platform and the contact protrusion can be located on opposite sides of the same position on the cable during use.

[0034] The beneficial effect is that this solution allows the contact platform and the contact protrusion to squeeze the cable from opposite sides at the same position on the cable, so that the cable can be effectively compressed.

[0035] As a further improvement, the contact platform is an arch-shaped structure with both ends connected to the body of the second shielding plate, and the extension direction of the contact platform is perpendicular to the direction of the cable.

[0036] The beneficial effects are: the contact platform in this solution has sufficient rigidity, and because the arch bridge structure can deform to a certain extent, it also has a certain degree of elasticity, which makes it easy to adapt to different models and sizes of cables within a certain range.

[0037] To achieve the above objectives, the technical solution for the cable connector provided by this invention is as follows: A cable connector includes a housing, within which a cable assembly is installed. The cable assembly includes an insulator, a cable embedded in the insulator, and a first shielding plate and a second shielding plate respectively fixed to both sides of the insulator. The first shielding plate includes a plate body and a contact structure disposed on the plate body for contacting and communicating with the cable shielding layer. The plate body is provided with a window for forming the contact structure. The contact structure includes two side limiting bodies integrally connected to one side edge of the window and arranged at intervals, and an abutment body integrally connected to the window edge where the side limiting bodies are located. The abutment body extends to the opposite side edge of the window and is integrally connected to that edge. The side limiting bodies have vertical extension portions perpendicular to the plate body of the shielding plate and for clamping the cable from both sides respectively. The abutment body is located between the two limiting bodies and has a contact protrusion protruding in the direction of the vertical extension portion for contacting the cable shielding layer. The second shielding plate is provided with a contact platform for abutting against the cable shielding layer.

[0038] The beneficial effects are as follows: The cable connector provided by this invention is an improvement upon existing technology. This solution features abutment bodies on the window of the shielding sheet, with both sides connected to the window's edges. Contact protrusions are provided on these abutment bodies to contact the cable shielding layer. The abutment bodies are simply supported beam structures with high rigidity, providing sufficient contact pressure when in contact with the cable shielding layer. Furthermore, the extension direction of the abutment bodies is the same as the cable's direction; therefore, the area of ​​the abutment body in contact with the cable shielding layer lacks sharp edges, making it less likely to cut the cable shielding layer. In summary, this solution allows the shielding sheet to contact the cable shielding layer using highly rigid abutment bodies without cutting the cable shielding layer, thereby improving the reliability and stability of the contact between the cable shielding layer and the shielding sheet, and ultimately improving the contact quality.

[0039] As a further improvement, the position of the contact protrusion corresponds to the position of the vertical extension, so that the contact protrusion and the two vertical extensions can be distributed circumferentially around the cable at the same position during use.

[0040] The beneficial effects are: when the side limiting body is engaged with both sides of the cable, the cable will be squeezed and contracted in the left and right direction, while expanding slightly in the up and down direction. The contact protrusion of the abutment body can provide strong constraint in the up and down direction, limiting the expansion of the cable in the up and down direction. This causes the cable itself to deform according to its shape, increasing the contact area between the cable shielding layer and the side limiting body and the abutment body, further enhancing the contact reliability and stability between the cable shielding layer and the shielding sheet, and improving the contact quality.

[0041] As a further improvement, the contact protrusion is positioned biased towards one end of the abutment body, which is the end of the abutment body near the side limiting body.

[0042] The beneficial effect is that this arrangement allows the contact protrusion to be close to the side limiting body, thus facilitating the alignment of the vertical extension of the side limiting body with the contact protrusion.

[0043] As a further improvement, a partition seam is provided on the edge of the window between the side limiting body and the abutment body to separate the two.

[0044] The beneficial effects are: this solution allows the side limiting body and the abutment body to be separated, and it also allows the contact protrusion on the abutment body to be closer to the edge of the window, thus achieving the corresponding setting of the contact protrusion and the vertical extension.

[0045] As a further improvement, the side limiting body also has a coplanar extension that is directly connected to the edge of the window and is coplanar with the sheet body. The vertical extension is connected to the end of the coplanar extension by a vertical bending structure, and there is a gap between the coplanar extension and the abutment body.

[0046] The beneficial effects are: after setting the coplanar extension, on the one hand, the vertical extension can be moved away from the edge of the window, thereby realizing the setting of the vertical extension and the contact protrusion; on the other hand, when the vertical extension is subjected to force, the force is transmitted to the coplanar extension, causing the coplanar extension to undergo a small-amplitude torsional deformation, thereby providing a certain amount of deformation capacity to the side limit body to adapt to different models and sizes of cables within a certain range.

[0047] As a further improvement, the surface on the side limiting body that comes into contact with the cable shielding layer is an inclined surface, and the inclined surfaces of the two limiting bodies are combined to form a flared guide structure for guiding the cable to be inserted.

[0048] The beneficial effects are: on the one hand, the edge cable can be inserted, and on the other hand, after the cable is inserted between the two limiting bodies, the inclined plane can be used to gradually tighten the cable.

[0049] As a further improvement, the position of the contact platform corresponds to the position of the contact protrusion on the first shielding plate, so that the contact platform and the contact protrusion can be located on opposite sides of the same position on the cable during use.

[0050] The beneficial effect is that this solution allows the contact platform and the contact protrusion to squeeze the cable from opposite sides at the same position on the cable, so that the cable can be effectively compressed.

[0051] As a further improvement, the contact platform is an arch-shaped structure with both ends connected to the body of the second shielding plate, and the extension direction of the contact platform is perpendicular to the direction of the cable.

[0052] The beneficial effects are: the contact platform in this solution has sufficient rigidity, and because the arch bridge structure can deform to a certain extent, it also has a certain degree of elasticity, which makes it easy to adapt to different models and sizes of cables within a certain range. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the cable connector in this invention; Figure 2 This is a schematic diagram of the cable assembly in one embodiment of the cable connector of the present invention; Figure 3 This is a schematic diagram of the structure of the insulator and signal terminals in one embodiment of the cable connector of the present invention; Figure 4 This is a schematic diagram of the structure of the insulator, signal terminal, and cable in one embodiment of the cable connector of the present invention; Figure 5 This is a schematic diagram of the structure of the second shielding plate in one embodiment of the cable connector of the present invention; Figure 6 This is a side view of the second shielding plate in one embodiment of the cable connector of the present invention; Figure 7 This is a schematic diagram of the structure of the first shielding plate in one embodiment of the cable connector of the present invention; Figure 8 This is a side view of the first shielding plate in one embodiment of the cable connector of the present invention; Figure 9 This is a schematic diagram of the structure of the first shielding plate from another perspective in one embodiment of the cable connector of the present invention; Figure 10 for Figure 9 Enlarged view of point B in the middle; Figure 11 for Figure 2 Enlarged view of point A in the middle; Figure 12 This is a partial structural diagram of the first shielding plate in another embodiment of the cable connector of the present invention; Figure 13 This is a partial cross-sectional view of the cable assembly in one embodiment of the cable connector of the present invention.

[0054] Explanation of reference numerals in the attached figures: 1. Outer shell; 2. Cable assembly; 21. Insulator; 211. Receiving groove; 212. Through space; 22. Cable; 221. Insulating sheath; 222. Cable shielding layer; 223. Conductive core; 23. Signal terminal; 24. First shielding plate; 241. Window; 242. Side limiting body; 2421. Coplanar extension; 2422. Vertical extension; 243. Abutment body; 2431. Contact protrusion; 244. Spacing space; 245. Separating seam; 25. Second shielding plate; 251. Contact platform; 3. Shielding cylinder. Specific Implementation

[0055] The present invention will be further described in detail below with reference to the embodiments.

[0056] Specific embodiments of the cable connector provided by this invention: See appendix Figure 1 The cable connector includes a housing 1, a cable assembly 2 and a shielding cylinder 3 installed inside the housing 1.

[0057] See appendix Figure 2 The cable assembly 2 includes an insulator 21, a cable 22, a signal terminal 23, and a first shielding plate 24 and a second shielding plate 25 respectively disposed on both sides of the insulator 21.

[0058] See appendix Figure 3 and attached Figure 4 The insulator 21 has a sheet-like structure. The signal terminals 23 are fixed in the insulator 21 by injection molding and arranged in a row. Two adjacent signal terminals 23 form a differential pair for transmitting differential signals. A receiving groove 211 is provided on one side of the insulator 21 at the position corresponding to each differential pair. The cable 22 is placed in the receiving groove 211. The insulation 221 and the cable shielding layer 222 at the end of the cable 22 are peeled off to expose two conductive cores 223. The two conductive cores 223 are respectively welded to the two signal terminals 23 in the same differential pair. A part of the insulation 221 and all of the cable shielding layer 222 of the cable 22 located in the receiving groove 211 are not peeled off.

[0059] The insulator 21 has a through space 212 extending along its thickness between the location where the signal terminal 23 is set and the location where the receiving groove 211 is set. The conductive core 223 of the cable 22 and the welding point of the signal terminal 23 are located in the through space 212. The area of ​​the cable 22 located in the through space 212 will have its insulation 221 peeled off, exposing the cable shielding layer 222.

[0060] Each of the two shielding plates has a structure at the corresponding position of the through space 212 of the insulator 21 for contacting and conducting with the cable shielding layer 222. The structure on the first shielding plate 24 is a contact structure that can contact three sides of the cable shielding layer 222, and the structure on the second shielding plate 25 is a contact platform 251 that can contact one side of the cable shielding layer 222. These structures, while making contact and conducting with the cable shielding layer 222, also constrain the cable 22.

[0061] See appendix Figure 5 and attached Figure 6The corresponding structure on the second shielding sheet 25 is a contact platform 251 protruding from its body. The surface of the contact platform 251 is flat and contacts the cable shielding layer 222. The contact platform 251 is integrally machined from the body of the second shielding sheet 25 by stamping. Both ends of the contact platform 251 are integrally connected to the body, while its sides are separate. The middle part of the contact platform 251 is a platform portion parallel to the body, and the platform portion extends obliquely to both ends. Both ends of the contact platform 251 are connected to the body, forming an overall arched structure. Its extension direction is perpendicular to the direction of the cable 22. The contact platform 251 is essentially a simply supported beam structure with high rigidity, providing a relatively stable contact surface with the cable shielding layer 222. In other embodiments, the contact platform 251 can also be a platform with a bulging structure that contacts the body on all four sides.

[0062] See appendix Figure 7 Appendix Figure 8 Appendix Figure 9 Appendix Figure 10 and appendix Figure 11 The contact structure on the first shielding sheet 24 is also integrally processed from the corresponding sheet body by stamping. The sheet body of the first shielding sheet 24 is provided with a window 241 for forming the contact structure at the position of the contact structure. The contact structure includes two side limiting bodies 242 integrally connected to one side edge of the window 241 and arranged at intervals, and also includes an abutment body 243 integrally connected to the edge of the window 241 where the side limiting body 242 is located. The abutment body 243 extends to the opposite side edge of the window 241 and is integrally connected to the edge.

[0063] The side limiting body 242 has a vertical extension 2422 perpendicular to the shielding sheet and used to clamp the cable 22 from both sides. The abutment body 243 is located between the two limiting bodies 242 and has a contact protrusion 2431 protruding in the extending direction of the vertical extension 2422 for contacting the cable shielding layer 222. In a preferred embodiment, the contact protrusion 2431 corresponds to the vertical extension 2422 so that the contact protrusion 2431 and the two vertical extensions 2422 are located at the same position on the cable 22 and distributed circumferentially around the cable 22. This arrangement allows the cable 22 to be constrained at the same position, enhancing the contact effect between the cable shielding layer 222 and the shielding sheet.

[0064] Both ends of the abutment 243 are connected to the sheet body, and it is essentially a simply supported beam structure with strong rigidity, providing sufficient contact pressure when in contact with the cable shielding layer 222. Moreover, the surface of the abutment 243 that contacts the cable shielding layer 222 is its wide surface (the surface perpendicular to the thickness direction), which provides a large contact area when in contact with the cable shielding layer 222. Furthermore, since the extension direction of the abutment 243 is the same as the direction of the cable 22, there are no sharp edges on the abutment 243 that could easily cut the cable shielding layer 222.

[0065] The contact protrusion 2431 on the abutment 243 is specifically an arched section bent into an arch shape on the abutment 243, while the rest of the abutment 243 is a straight section that is coplanar with the sheet. The arched section can expand and deform under pressure, so although the abutment 243 has high rigidity, it also has a certain degree of elastic deformation capability, allowing it to adapt to different sizes and types of cables 22 within a certain range. In other embodiments, the contact protrusion 2431 can also be a bulge stamped onto the abutment 243. In this embodiment, the abutment 243 lacks elastic deformation capability but has even higher rigidity.

[0066] Two side retainers 242 clamp the cable 22 from both sides using their respective vertical extensions 2422. The side of the side retainer 242 that contacts the cable shielding layer 222 is its narrow side (parallel to the thickness direction). While clamping the cable 22, the side retainer 242 is also in communication with the cable shielding layer 222. Although the side retainer 242 is a cantilever structure, because the clamping force between the side retainer 242 and the cable 22 is perpendicular to the thickness direction of the side retainer 242, the side retainer 242 has a large moment of inertia in the direction of the clamping force. This makes the side retainer 242 less prone to bending deformation in the direction of force, so the side retainer 242 also has a certain rigidity and can provide sufficient contact pressure when in contact with the cable shielding layer 222.

[0067] Compared with the prior art, the first shielding plate 24 in this solution uses the contact protrusion 2431 on the abutment body 243 and the vertical extension 2422 on the side limiting body 242 to contact the cable shielding layer 222. The contact protrusion has no sharp edge contact with the cable shielding layer 222, which makes it less likely to cut the cable shielding layer 222. At the same time, the rigidity of the two structures is high, which can provide greater contact pressure, thereby enhancing the contact reliability and stability between the cable shielding layer 222 and the shielding plate, and improving the contact quality between the cable shielding layer 222 and the shielding plate.

[0068] In some embodiments, see Appendix Figure 12The side limiting body 242 may only include a vertical extension 2422, which is connected to the edge of the window 241 by a vertical bending structure. To separate the side limiting body 242 from the abutment body 243, and to bring the contact protrusion 2431 on the abutment body 243 closer to the edge of the window 241, a further embodiment may provide a separating slit 245 between the side limiting body 242 and the abutment body 243 on the edge of the window 241 to separate them. However, this embodiment would make the side limiting body 242 too rigid and too close to the edge of the window 241, preventing the vertical bending portion and the contact protrusion 2431 from being positioned correctly.

[0069] In some embodiments, the side limiting body 242 further has a coplanar extension 2421, which is directly connected to the edge of the window 241 and is coplanar with the sheet body of the first shielding sheet 24. The vertical extension 2422 is connected to the end of the coplanar extension 2421 by a vertical bending structure. A gap space 244 is left between the coplanar extension 2421 and the abutment body 243.

[0070] After setting the coplanar extension 2421, on the one hand, the vertical extension 2422 can be moved away from the edge of the window 241, thereby realizing the setting of the vertical extension 2422 corresponding to the contact protrusion 2431; on the other hand, when the vertical extension 2422 is subjected to force, the force is transmitted to the coplanar extension 2421, causing the coplanar extension 2421 to undergo a small-amplitude torsional deformation, thereby providing a certain amount of deformation capacity to the side limit body 242, so as to adapt to different models and sizes of cables 22 within a certain range.

[0071] The side of the vertical extension 2422 that contacts the cable shielding layer 222 can be a vertical surface. In a preferred embodiment, the contact surface is an inclined surface. The inclined surfaces of the two limiting bodies 242 are combined to form a flared guide structure for guiding the cable 22 to be inserted. On the one hand, the edge of the cable 22 can be inserted. On the other hand, after the cable 22 is inserted between the two limiting bodies 242, the inclined surface can gradually tighten the cable 22.

[0072] In a preferred embodiment, the position of the contact protrusion 2431 corresponds to the position of the vertical extension 2422, so that during use, the contact protrusion 2431 and the two vertical extensions 2422 can be located on the three sides of the cable 22 at the same position. To achieve this purpose, and to avoid the coplanar extension 2421 of the side limiting part becoming too long and reducing rigidity, in a further embodiment, the contact protrusion 2431 can be biased towards one end of the abutment 243, and this end is the end of the abutment 243 closer to the side limiting body 242.

[0073] At the same time, the position of the contact platform 251 corresponds to the position of the contact protrusion 2431 on the first shielding plate 24, so that when in use, the contact platform 251 and the contact protrusion 2431 can be located on opposite sides of the same position of the cable 22. Combined with the position of the side limiting part, the cable shielding layer 222 has strong rigid constraints around the same position.

[0074] During assembly, please refer to the appendix. Figure 13 When the side limiting body 242 is engaged with both sides of the cable 22, the cable 22 will be compressed and contracted in the left-right direction, while expanding slightly in the up-down direction. The contact protrusion 2431 and contact platform 251 of the abutment body 243 can provide strong compressive force in the up-down direction, limiting the expansion of the cable 22 in the up-down direction. Under the constraint of all four sides, the cable 22 itself will undergo conformal deformation, and its outer contour will no longer be a regular circle, but will adaptively approach the shape of the space enclosed by the contact platform 251, the side limiting body 242 and the abutment body 243. In this way, the cable shielding layer 222 has a large contact area with the contact platform 251, the side limiting body 242 and the abutment body 243, thereby further enhancing the contact reliability and stability between the cable shielding layer 222 and the shielding sheet, and improving the contact quality.

[0075] Existing technologies do not provide highly rigid four-sided constraints. For example, in Chinese invention patent application CN119070085A, the corresponding positions of the clips on the two side shielding plates need to be staggered by a certain distance to avoid interference during assembly. Therefore, the cable cannot be constrained on all four sides at the same position, and there will always be an opening on one side. When the cable is pressed on other sides, it is easy to deform towards that opening side, resulting in pressure attenuation on other sides. It is difficult for the cable shielding layer to achieve a tighter fit with the clips, which is detrimental to the conductivity stability and reliability of the cable shielding layer and shielding plates. In Chinese invention patent application CN120341656A, although the positions of the side grounding spring claw and the upper grounding spring claw are corresponding, the contact positions between the side grounding spring claw and the cable are staggered. Therefore, strictly speaking, it is not a four-sided constraint. Moreover, both the upper and side grounding spring claws are cantilever structures with poor rigidity, which cannot provide sufficient constraint force.

[0076] In other embodiments of this solution, the contact platform 251, the side limiting body 242, and the abutment body 243 can be slightly offset by a certain distance, which can still improve the contact quality between the cable shielding layer 222 and the shielding sheet compared to the prior art.

[0077] Specific embodiments of the cable assembly provided by this invention: The structure of this cable assembly is the same as that of the cable assembly in the cable connector described above, and will not be repeated here.

[0078] Specific embodiments of the shielding sheet provided by the present invention: The structure of this shielding plate is the same as that of the first shielding plate in the aforementioned cable connector, and will not be described again. It should be noted that when this shielding plate is used, another shielding plate on the same cable assembly as this shielding plate may not have a contact plate, but may have other forms of structure to contact the cable shielding layer, such as a spring claw structure.

[0079] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shielding sheet, comprising a sheet body and a contact structure disposed on the sheet body for making contact and conducting with a cable shielding layer (222), wherein the sheet body is provided with a window (241) for forming the contact structure, characterized in that, The contact structure includes two side limiting bodies (242) integrally connected to one side edge of the window (241) and spaced apart, and also includes an abutment body (243) integrally connected to the edge of the window (241) where the side limiting bodies (242) are located. The abutment body (243) extends to the opposite side edge of the window (241) and is integrally connected to the edge. The side limiting body (242) has a vertical extension (2422) perpendicular to the sheet of the shielding sheet and used to clamp the cable (22) from both sides respectively. The abutment body (243) is located between the two limiting bodies (242) and has a contact protrusion (2431) protruding in the direction of extension of the vertical extension (2422) for contacting the cable shielding layer (222).

2. The shielding sheet according to claim 1, characterized in that, The position of the contact protrusion (2431) corresponds to the position of the vertical extension (2422) so that the contact protrusion (2431) and the two vertical extensions (2422) can be distributed circumferentially around the cable (22) at the same position during use.

3. The shielding sheet according to claim 2, characterized in that, The contact protrusion (2431) is provided at one end of the abutment (243), which is the end of the abutment (243) near the side limiter (242).

4. The shielding sheet according to any one of claims 1-3, characterized in that, A partition seam (245) is provided on the edge of the window (241) between the side limiting body (242) and the abutment body (243) to separate the two.

5. The shielding sheet according to any one of claims 1-3, characterized in that, The side limiting body (242) also has a coplanar extension (2421) that is directly connected to the edge of the window (241) and is coplanar with the sheet body. The vertical extension (2422) is connected to the end of the coplanar extension (2421) by a vertical bending structure. There is a gap space (244) between the coplanar extension (2421) and the abutment (243).

6. The shielding sheet according to any one of claims 1-3, characterized in that, The side limiting body (242) has a beveled surface for contacting the cable shielding layer (222), and the beveled surfaces of the two limiting bodies (242) are combined to form a flared guide structure for guiding the cable (22) to be inserted.

7. A cable assembly comprising an insulator (21), a cable (22) embedded in the insulator (21), and a first shielding plate (24) and a second shielding plate (25) respectively fixed on both sides of the insulator (21), characterized in that, The first shielding plate (24) is the shielding plate according to any one of claims 1-6, and the second shielding plate (25) is provided with a contact platform (251) for abutting against the cable shielding layer (222).

8. The cable assembly according to claim 7, characterized in that, The position of the contact platform (251) corresponds to the position of the contact protrusion (2431) on the first shielding plate (24) so ​​that the contact platform (251) and the contact protrusion (2431) can be located on opposite sides of the same position on the cable (22) during use.

9. The cable assembly according to claim 7 or 8, characterized in that, The contact platform (251) is an arch-shaped structure with both ends connected to the body of the second shielding plate (25). The extension direction of the contact platform (251) is perpendicular to the direction of the cable (22).

10. A cable connector, comprising a housing (1), characterized in that, The cable assembly according to any one of claims 7-9 is installed inside the housing (1).

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