Grounding shielding piece and connector

Abstract

The invention provides a grounding shielding piece and a connector, and belongs to the field of connecting devices. The grounding shielding member comprises a shielding main body, the shielding main body is provided with a shielding cavity used for accommodating differential pairs and providing shielding for the differential pairs, one end, corresponding to a press fitting end of a connector, of the shielding main body is provided with grounding fisheyes and grounding sheets, and the grounding fisheyes and the grounding sheets can be used for providing shielding between adjacent differential pairs. The grounding fisheye is used for being pressed on a printed board, and the grounding sheet is used for being inserted into a grounding plate of the connector and being conducted with the grounding plate. The connector comprises the grounding shielding piece. Part of the grounding fisheyes are replaced by the grounding sheets, so that the structures of the grounding shielding piece and the printed board are simplified under the condition that the shielding effect is not affected.

Description

Technical Field

[0001] This invention belongs to the field of connection devices, and in particular relates to a grounding shield and connector. Background Technology

[0002] Differential pairs are commonly used in high-speed connectors to transmit signals. As the signal transmission rate increases, crosstalk between differential pairs worsens. Therefore, it is necessary to configure grounded shields that can surround the differential pairs to reduce crosstalk between them.

[0003] A Chinese invention patent application with publication number CN110098509A and publication date of August 6, 2019 discloses an electrical connector system. The electrical connector system includes paired signal terminals (i.e., signal contacts), a grounding shield (i.e., plug shield), and a housing. The housing includes an insulating front housing and a conductive rear housing. The differential pair and the grounding shield are both inserted into the front housing, and the grounding shield is in contact with the rear housing. Both the differential pair and the grounding shield are provided with fisheyes that pass through the housing and are used for pressing with a printed circuit board. The grounding shield is C-shaped and includes three side plates. Each side plate is provided with a grounding fisheye. The grounding fisheye on the grounding shield needs to be pressed with the printed circuit board to achieve grounding, and it can also provide shielding for the signal fisheyes on the signal terminals.

[0004] The printed circuit board (PCB) used to mount the aforementioned electrical connector system needs to have holes for the fisheyes, and the PCB also needs to be designed with traces that are conductively connected to the fisheyes at these holes. The aforementioned grounding shield has a large number of grounding fisheyes. On the one hand, each grounding fisheye needs to be aligned with its corresponding hole on the PCB, and the difficulty of positioning increases with the number of grounding fisheyes. On the other hand, a large number of grounding fisheyes also leads to a larger number of holes and traces on the PCB, resulting in a complex PCB structure, difficult trace arrangement, and consequently increased design and manufacturing costs.

[0005] The above problems can be avoided by directly reducing the number of grounding fisheyes on the grounding shield. However, the grounding fisheyes also serve to shield the signal fisheyes. Therefore, directly reducing the number of grounding fisheyes on the grounding shield will lead to magnetic leakage at the location where the grounding fisheyes are removed, which will increase crosstalk between differential pairs and is not conducive to high-speed signal transmission. Summary of the Invention

[0006] The purpose of this invention is to provide a connector that solves the technical problem of complex grounding shield and printed circuit board structure caused by the large number of fisheyes on the grounding shield in the existing connectors. The purpose of this invention is to provide a grounding shield to solve the above-mentioned technical problems.

[0007] To achieve the above objectives, the technical solution for the connector provided by this invention is as follows: A connector includes an insulating shell, a ground plane, and differential pairs and a grounding shield mounted on the insulating shell. The grounding shield includes a shielding body having a shielding cavity capable of accommodating and shielding the differential pairs. One end of the shielding body corresponding to the press-fit end of the connector is provided with a grounding eye and a grounding plate. Both the grounding eye and the grounding plate can provide shielding between adjacent differential pairs. The grounding eye passes through the ground plane and can be press-fitted onto a printed circuit board. The grounding plate is inserted into a corresponding common ground hole provided on the ground plane and is in communication with the ground plane.

[0008] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. The shielding body also includes a connecting plate, which is connected between the two side plates on the side away from the base plate. The connecting plate, the side plates, and the base plate together form a frame structure.

[0009] As a further improvement, the connecting plate is located at the end of the shielding body that corresponds to the press-fit end of the connector. The end face of the insulating shell that corresponds to the press-fit end of the connector is provided with mounting holes that penetrate the insulating shell for inserting the base plate and side plate. The end face of the insulating shell that corresponds to the press-fit end of the connector is also provided with a limiting groove that does not penetrate the insulating shell for embedding the connecting plate. The bottom surface of the limiting groove is used to position the assembly of the grounding shield.

[0010] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. One side plate is provided with only a grounding fisheye, and the other side plate is provided with only a grounding plate.

[0011] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. The base plate is also provided with a grounding fisheye and a grounding plate.

[0012] The beneficial effects are as follows: This connector is an improvement upon existing technology. In this connector, some of the grounding fisheyes on the grounding shield are replaced with grounding plates. The grounding plates provide shielding and conduction with the ground plane, but are not pressed into the printed circuit board. Therefore, this grounding shield simplifies its structure while maintaining good shielding performance. The positioning difficulty of the grounding fisheyes during press-fitting is reduced, improving assembly efficiency. Furthermore, reducing the number of grounding fisheyes on the grounding shield allows for fewer holes and traces on the printed circuit board, simplifying its structure and reducing manufacturing costs.

[0013] To achieve the above objectives, the technical solution of the grounding shield provided by this invention is as follows: A grounding shield includes a shielding body having a shielding cavity for accommodating and shielding differential pairs. One end of the shielding body corresponding to the press-fit end of a connector is provided with a grounding fisheye and a grounding plate. Both the grounding fisheye and the grounding plate are used to provide shielding between adjacent differential pairs. The grounding fisheye is used for press-fitting onto a printed circuit board, and the grounding plate is used for inserting into the ground plane of the connector and communicating with the ground plane.

[0014] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. The shielding body also includes a connecting plate, which is connected between the two side plates on the side away from the base plate. The connecting plate, the side plates, and the base plate together form a frame structure.

[0015] As a further improvement, the connecting plate is located at one end of the shielding body that corresponds to the press-fit end of the connector. The connecting plate can be embedded into the limiting groove on the insulating shell and positioned and engaged with the bottom surface of the limiting groove.

[0016] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. One side plate is provided with only a grounding fisheye, and the other side plate is provided with only a grounding plate.

[0017] As a further improvement, the shielding body includes a base plate and two side plates vertically connected to both sides of the base plate. The base plate and the side plates form the shielding cavity. The base plate is also provided with a grounding fisheye and a grounding plate.

[0018] The beneficial effects are as follows: This grounding shield is an invention that replaces some of the grounding fisheyes with grounding plates. The grounding plates provide shielding and conduction with the grounding plate, but are not pressed into the printed circuit board (PCB). Therefore, this grounding shield simplifies its structure while maintaining good shielding performance. The difficulty of positioning the grounding fisheyes during press-fitting is reduced, improving assembly efficiency. Furthermore, reducing the number of grounding fisheyes on the grounding shield allows for fewer holes and traces on the PCB, simplifying its structure and reducing manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the mating state of the connector and the adapter connector in Embodiment 1 of the connector of the present invention; Figure 2 This is a schematic diagram of the overall structure of the connector in Embodiment 1 of the connector of the present invention; Figure 3This is a partial structural schematic diagram of the connector in Embodiment 1 of the connector of the present invention; Figure 4 This is a schematic diagram of the grounding shield in Embodiment 1 of the connector of the present invention; Figure 5 This is a schematic diagram of the insulating shell structure in Embodiment 1 of the connector of the present invention; Figure 6 This is a partial structural schematic diagram of the insulating shell in Embodiment 1 of the connector of the present invention; Figure 7 This is a schematic diagram of the conductive plate structure in Embodiment 1 of the connector of the present invention; Figure 8 A schematic diagram of a connector without a grounding plate; Figure 9 A partial structural diagram of a connector without a grounding plate; Figure 10 A schematic diagram of a grounding shield without a grounding plate; Figure 11 A schematic diagram of the conductive plate in a connector without a grounding plate; Figure 12 This is a near-end crosstalk curve between two differential pairs measured at the adapter connector end in Embodiment 1 of the connector of the present invention. Figure 13 This is a near-end crosstalk curve between partial oblique differential pairs measured at the adapter connector end in Embodiment 1 of the connector of the present invention; Figure 14 This is a near-end crosstalk curve between two differential pairs measured at the connector end in Embodiment 1 of the connector of the present invention. Figure 15 This is a near-end crosstalk curve between partial oblique differential pairs measured at the connector end in Embodiment 1 of the connector of the present invention; Figure 16 This is a diagram showing the far-end crosstalk curves between partially opposite differential pairs in Embodiment 1 of the connector of the present invention; Figure 17 This is a diagram showing the far-end crosstalk curves between some oblique differential pairs in Embodiment 1 of the connector of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Adaptor connector; 2. Housing; 21. Insulating shell; 211. Base; 212. Guide section; 213. Accommodation space; 214. Terminal mounting hole; 2141. Main hole section; 2142. Insertion groove; 2143. Bevel; 215. Shielding mounting hole; 216. Limiting groove; 217. Stop platform; 22. Conductive plate; 221. Alternating hole; 222. Common ground hole; 23. Shielding mesh; 3. Grounding shield; 31. Shielding body; 311. Base plate; 312. Side plate; 313. Connecting plate; 314. Riveting seam; 315. Inner protrusion; 316. Stepped surface; 317. Protrusion; 32. Grounding piece; 321. Raised part; 33. Side fisheye; 331. Press-fit part; 332. Fisheye shoulder; 34. Front fisheye; 4. Signal fisheye. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments.

[0022] Specific embodiment 1 of the connector provided by the present invention: See appendix Figure 1 Appendix Figure 2 and appendix Figure 3 The connector includes a housing 2, signal terminals, and a grounding shield 3. One end of the connector is a mating end for mating with an adapter connector 1, and the other end is a pressing end for pressing onto a printed circuit board. The signal terminals are arranged in pairs, with each pair forming a differential pair, and the differential pairs are arranged in a matrix on the housing.

[0023] The connector is inserted and removed in a front-to-back direction, with the mating end being its front end and the press-fit end being its rear end. For ease of description, in this embodiment, the front-to-back direction is taken as the third direction, and the arrangement direction of the differential pair is taken as the first direction and the second direction. Both the first direction and the second direction are perpendicular to the third direction and are perpendicular to each other. In addition, the first direction is also the arrangement direction of the two signal terminals in the same differential pair.

[0024] One end of the signal terminal is a contact end for making contact with the signal contact of the adapter connector 1 to transmit signals, and the other end of the signal terminal is provided with a signal fisheye 4, so that the signal terminal can be press-fitted onto the printed circuit board through the signal fisheye 4.

[0025] Each differential pair is equipped with a grounding shield 3, see Appendix Figure 4The grounding shield 3 includes a shielding body 31, a grounding fisheye, and a grounding plate 32. The shielding body 31 includes a base plate 311 and side plates 312 respectively perpendicularly disposed on both sides of the base plate 311. The base plate 311 and the two side plates 312 are C-shaped when cut by a plane perpendicular to the insertion / removal direction. The grounding fisheye and the grounding plate 32 are integrally integrated at the rear end of the shielding body 31. Specifically, the base plate 311 has two grounding fisheyes, one side plate 312 has one grounding fisheye, and there is only one grounding plate 32 located on the other side plate 312.

[0026] The outer shell 2 includes an insulating shell 21, a conductive plate 22, and a shielding mesh 23. The shielding mesh 23 is located inside the insulating shell 21, and the conductive plate 22 is located outside the insulating shell 21. A groove is provided on the rear side of the insulating shell 21, and the conductive plate 22 is embedded in the groove.

[0027] See appendix Figure 2 and in conjunction with the appendix Figure 5 and attached Figure 6 The insulating shell 21 includes a base 211 and guide portions 212 vertically disposed on both sides of the base 211. The space enclosed by the guide portions 212 and the base 211 is a receiving space 213 for inserting the adapter connector 1. The guide portions 212 are used to guide the adapter connector 1 during the insertion process. The base 211 of the insulating shell 21 is provided with terminal mounting holes 214 for inserting signal terminals and shield mounting holes 215 for inserting grounding shield 3.

[0028] After the signal terminal is inserted into the terminal mounting hole 214, it is interference-fitted with the hole wall, thereby fixing the signal terminal relative to the insulating shell 21. At the same time, the contact end of the signal terminal is located in the receiving space 213, and the signal fisheye 4 of the signal terminal extends from the rear end of the insulating shell 21 for easy pressing with the printed circuit board. The terminal mounting hole 214 includes a main hole portion 2141 and a plug groove 2142. The plug groove 2142 is located on the opposite two side holes of the main hole portion 2141. A bevel 2143 is provided between the groove opening of the plug groove 2142 and the side wall of the main hole portion 2141. After the part of the signal terminal adjacent to the signal fisheye 4 is inserted into the plug groove 2142, it is interference-fitted with the groove wall of the plug groove 2142.

[0029] The grounding shield 3 is provided with a protrusion. After the shielding body 31 of the grounding shield 3 is installed into the shield mounting hole 215, the protrusion can be used to make an interference fit with the hole wall of the shield mounting hole 215, thereby fixing the grounding shield 3 relative to the insulating shell 21. Since the contact area between the protrusion and the hole wall of the shield mounting hole 215 is small, the resistance during the installation process can be reduced and the ease of assembly can be improved.

[0030] The shielding mounting hole 215 is a C-shaped hole whose shape matches the overall shape of the base plate 311 and the side plate 312. The base plate 311 and the side plate 312 can be inserted through the shielding mounting hole 215 from back to front. After assembly, the front ends of the base plate 311 and the side plate 312 are located in the receiving space 213, and the rear ends of the base plate 311 and the side plate 312 are located in the shielding mounting hole 215. At the same time, the grounding fisheye and the grounding plate 32 are exposed on the rear side of the insulating shell 21.

[0031] The grounding fisheye on the side plate 312 of the grounding shield 3 forms a side fisheye 33, which is aligned with the center of the grounding plate 32, the side fisheye 33, and the two signal fisheyes 4 corresponding to the same differential pair. Furthermore, the distance from the grounding plate 32 to its adjacent signal fisheye 4 is equal to the distance from the side fisheye 33 to its adjacent signal fisheye 4. During use, the grounding plate 32 and the side fisheye 33 provide shielding in the first direction, preventing crosstalk between differential pairs in that direction. The two grounding fisheyes on the base plate 311 form a front fisheye 34, which are aligned with the corresponding two signal fisheyes 4 in the second direction, thus providing shielding between differential pairs in the second direction.

[0032] See appendix Figure 2 and in conjunction with the appendix Figure 7 The conductive plate 22 is installed on the rear side of the base 211 of the insulating shell 21. The conductive plate 22 is provided with a clearance hole 221 for avoiding the signal fisheye 4. The conductive plate 22 is also provided with a common ground hole 222 for the front fisheye 34, the side fisheye 33 and the grounding plate 32 to pass through and make contact.

[0033] Both the front fisheye 34 and the side fisheye 33 include a press-fit portion 331 for insertion into a hole on the printed circuit board and a fisheye shoulder 332 for insertion into a corresponding common ground hole 222. The fisheye shoulder 332 is interference-fitted with the hole wall of the corresponding common ground hole 222, thereby enabling the front fisheye 34 and the side fisheye 33 to make contact and conduction with the conductive plate 22. The grounding piece 32 is also interference-fitted with the hole wall of the corresponding common ground hole 222, and both ends of the grounding piece 32 in the second direction are provided with arc-shaped protrusions 321 to facilitate the assembly of the grounding piece 32 with the corresponding common ground hole 222. The end of the grounding piece 32 does not protrude from the rear side of the conductive plate 22 to avoid gaps between the conductive plate 22 and the printed circuit board when the connector is press-fitted onto the printed circuit board.

[0034] The conductive plate 22 enables all front fisheyes 34, side fisheyes 33 and grounding plates 32 to be grounded and conduction, and also provides all-round shielding, which helps to further enhance the shielding effect.

[0035] During the assembly of the connector, each signal terminal is first assembled onto the insulating shell 21, then each grounding shield 3 is assembled onto the insulating shell 21 from back to front, and finally the conductive plate 22 is assembled.

[0036] In use, the grounding fisheyes are press-fitted into the corresponding holes on the printed circuit board (PCB), while the grounding plate 32 is not pressed into the PCB. Therefore, the PCB does not need to have corresponding holes or traces at the positions corresponding to the grounding plate 32. Compared with the prior art, the structure of the PCB is simpler, and the design and manufacturing difficulty and cost of the PCB are also lower. Since the grounding plate 32 replaces some of the grounding fisheyes in this embodiment, the number of grounding fisheyes is reduced while maintaining a good shielding effect. The positioning difficulty of the grounding fisheyes during the press-fitting process is reduced, and the assembly efficiency is improved.

[0037] In this embodiment, the differential pairs are sparsely arranged in the first direction and densely arranged in the second direction. Therefore, the signal fisheyes 4 of two adjacent differential pairs in the second direction can share the front fisheye 34 between the two differential pairs. However, the signal fisheyes 4 of two adjacent differential pairs in the first direction cannot share the side fisheye 33. The reason is that if the side fisheye 33 between the two differential pairs is shared, the distance from the side fisheye 33 to the corresponding signal fisheyes 4 of the two differential pairs will be large, which will be difficult to meet the shielding requirements. Therefore, the differential pairs need to be shielded separately on both sides in the first direction, which is the side fisheye 33 and the grounding plate 32 in this embodiment.

[0038] To reduce the number of grounding fisheyes, some grounding fisheyes can be removed instead of grounding plate 32. See Appendix for this solution. Figure 8 Appendix Figure 9 Appendix Figure 10 and attached Figure 11 After testing, compared with the solution without grounding plate 32, the present invention can suppress crosstalk spikes at 13GHz after setting grounding plate 32.

[0039] Appendix Figure 12 -Appendix Figure 17 These are the test data for crosstalk under two conditions: with and without grounding plate 32. The red line represents the relationship between power gain and frequency when grounding plate 32 is not set, and the blue line represents the relationship between power gain and frequency when grounding plate 32 is set.

[0040] Figure 12 This is a near-end crosstalk curve between partially aligned differential pairs measured at the end of adapter connector 1 after the connector is mated with adapter connector 1. Figure 13 This is a near-end crosstalk curve between differential pairs of a partially oblique pair, measured at the end of adapter connector 1 after the connector is mated with adapter connector 1. Figure 14This is a near-end crosstalk curve between partially aligned differential pairs measured at the connector end after the connector and adapter connector 1 are mated. Figure 15 This is a near-end crosstalk curve between differential pairs of a partially oblique pair, measured at the connector end after the connector and adapter connector 1 are mated. Figure 16 This is a graph showing the far-end crosstalk between partially aligned differential pairs after the connector and adapter connector 1 are mated. Figure 17 This is a graph showing the far-end crosstalk curves between some obliquely paired differential pairs after the connector and adapter connector 1 are mated. The "positive pair" above refers to two adjacent differential pairs directly opposite each other in the first direction, while the "oblique pair" refers to two adjacent differential pairs obliquely opposite each other. As indicated by the red arrow in the graph, at 13GHz, the crosstalk between positively paired differential pairs without grounding plate 32 has a noticeable spike, while the crosstalk spike disappears after grounding plate 32 is installed.

[0041] In this embodiment, a side fisheye 33 is still retained, mainly because: firstly, at least one side plate 312 between two adjacent differential pairs in the first direction needs to be directly connected to the grounding conductor on the printed circuit board to shorten the return path and ensure a good common ground shielding effect; secondly, the grounding plate 32 is not connected to the printed circuit board, so there is a gap between the grounding plate 32 and the printed circuit board, which will affect the shielding effect. The retained side fisheye 33 can be connected to the printed circuit board to make up for the lack of shielding effect caused by the gap between the grounding plate 32 and the printed circuit board.

[0042] In this embodiment, see Appendix Figure 4 The shielding body 31 also includes a connecting plate 313, which is connected between the two side plates 312 on the side edges away from the bottom plate 311, and the connecting plate 313 is located at the rear of the side plates 312, with the rear edge of the connecting plate 313 flush with the rear edge of the side plates 312.

[0043] The connecting plate 313, together with the base plate 311 and the side plate 312, forms a frame structure, which enhances the structural strength of the shielding body 31 and prevents deformation of the shielding body 31 during assembly and use. The shielding body 31 is integrally processed from metal sheet through processes such as cutting, stamping and bending. The shielding body 31 has a riveting seam 314 that forms a ring around it, and the riveting seam 314 is located at the center of the base plate 311 in the first direction.

[0044] A limiting groove 216 adapted to the shape of the connecting plate is provided on the rear side of the base 211 of the insulating shell 21. The limiting groove 216 is connected between the two ends of the shield mounting hole 215. During the assembly process, the connecting plate 313 of the shield body 31 is inserted into the limiting groove 216 from back to front, and is stopped and limited by the bottom surface of the limiting groove 216. The limiting groove 216 not only allows the connecting plate 313 to be embedded into the insulating shell 21, but also positions the grounding shield 3 during the assembly process, improving the convenience of the assembly operation.

[0045] The shielding body 31 has an outward or inward protrusion at its rear end to form a forward-facing stepped surface. The insulating shell 21 has a stop 217 that mates with the stepped surface. The stop 217, in conjunction with the stepped surface, can stop and limit the grounding shield during assembly, thus achieving positioning after the grounding shield is assembled. In this embodiment, the shielding body 31 has an inward protrusion 315 located at the position where the grounding plate 32 and the side fisheye 33 are located on the side plate 312. The inward protrusion 315 protrudes inward toward the side plate 312, forming a stepped surface 316 on the inner surface of the side plate 312.

[0046] See appendix Figure 2 The outer casing 2 also includes a conductive shielding mesh 23, which is either a conductor or a plastic coated or electroplated with a conductive layer. The shielding mesh 23 is disposed within the receiving space 213 and is attached to the base 211 of the insulating shell 21. The shielding mesh 23 has shielding holes through which grounding shielding components 3 pass, and the grounding shielding components 3 are in close contact with the corresponding shielding holes via protrusions 317 on their sides. The shielding mesh 23 allows all grounding shielding components 3 to share a common ground and provides omnidirectional shielding, improving the shielding effect of the differential pair.

[0047] In other embodiments, one of the grounding fisheyes on the base plate 311 can be replaced with a grounding plate 32, while the other grounding fisheye remains. This further reduces the number of grounding fisheyes on the grounding shield 3, while ensuring that the grounding shield 3 has enough grounding fisheyes to press against the printed circuit board, guaranteeing sufficient holding force between the grounding fisheyes and the grounding shield 3. Furthermore, for the installation stability of the grounding shield 3, the grounding fisheyes and grounding plates 32 on the grounding shield 3 can be arranged alternately along the rear edge of the grounding shield.

[0048] In other embodiments, the two signal terminals in the same differential pair can also be arranged obliquely, that is, the center line connecting the two signal terminals is arranged at an angle to both the first direction and the second direction. In this case, the side fisheye 33 and the grounding plate 32 still need to be set on the extension line of the center line connecting the two signal terminals.

[0049] In other embodiments, the number and position of the side fisheyes 33 and the grounding plates 32 can be changed as needed. For example, two side fisheyes 33 or two shielding plates can be provided on a side plate 312. This arrangement can refer to the arrangement of the grounding fisheyes on the grounding shield 3 in the prior art, and will not be described in detail here.

[0050] Specific embodiment 2 of the connector provided by the present invention: This embodiment is based on Embodiment 1. The difference between Embodiment 1 and Embodiment 1 is that in this embodiment, the grounding plate is only inserted into the corresponding common ground hole on the conductive plate, and does not make contact with the hole wall of the common ground hole for conduction. In this embodiment, the grounding plate does not participate in the common ground connection, but after testing, the grounding plate can still play a shielding role.

[0051] Specific embodiment 3 of the connector provided by the present invention: This embodiment is based on Embodiment 1, but differs in that the connecting plate is located at the front of the side plate and is situated in the receiving space after assembly. In this embodiment, the connecting plate only serves to reinforce the grounding shield and does not block or limit the base of the insulating shell. Furthermore, due to the change in the position of the connecting plate, the grounding shield in this embodiment needs to be inserted into the base of the insulating shell from the insertion end towards the pressing end. Moreover, for ease of insertion, no inner or outer protrusion is provided in this embodiment.

[0052] Specific embodiment 4 of the connector provided by the present invention: This embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that no connecting plate is provided in this embodiment. Since no grounding fisheye or grounding plate is required on the connecting plate, removing the connecting plate does not affect the shielding effect.

[0053] Specific embodiment 5 of the connector provided by the present invention: This embodiment is based on Embodiment 1, but differs in that a conductive plate is not provided in this embodiment, and the common ground of each grounding shield is achieved through a shielding mesh. In this embodiment, the grounding fisheye and grounding plate do not need to be connected to the conductive plate, therefore, there is no need to provide a fisheye shoulder on the grounding fisheye, nor is there a need to provide a protrusion on the grounding plate.

[0054] Specific embodiment 6 of the connector provided by the present invention: This embodiment is based on Embodiment 1, but the difference is that no shielding net is set in this embodiment.

[0055] Specific embodiments of the grounding shield provided by the present invention: The grounding shield is the grounding shield of any one of embodiments 1-6 of the connector, and will not be described in detail here.

[0056] 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 connector comprising an insulating shell (21), a ground plane, and a differential pair and a ground shield (3) inserted into the insulating shell (21), characterized in that, The grounding shield (3) includes a shielding body (31), which has a shielding cavity capable of accommodating differential pairs and providing shielding for the differential pairs. The shielding body (31) is provided with a grounding fisheye and a grounding plate (32) at one end corresponding to the press-fit end of the connector. Both the grounding fisheye and the grounding plate (32) can provide shielding between adjacent differential pairs. The grounding fisheye passes through the ground plane and can be press-fitted onto the printed circuit board. The grounding plate (32) is inserted into the corresponding common ground hole (222) provided on the ground plane and is in communication with the ground plane.

2. The connector according to claim 1, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. The shielding body (31) also includes a connecting plate (313). The connecting plate (313) is connected between the two side plates (312) on the side edge away from the base plate (311). The connecting plate (313), the side plates (312), and the base plate (311) together form a frame structure.

3. The connector according to claim 2, characterized in that, The connecting plate (313) is located at one end of the shielding body (31) corresponding to the press-fit end of the connector. The insulating shell (21) has mounting holes that penetrate the insulating shell (21) for inserting the base plate (311) and the side plate (312) on the end face corresponding to the press-fit end of the connector. The insulating shell (21) also has a limiting groove (216) that does not penetrate the insulating shell (21) for the connecting plate (313) to be embedded in. The bottom surface of the limiting groove (216) is used to position the assembly of the grounding shield (3).

4. The connector according to claim 1, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. One side plate (312) is provided with only a grounding fisheye, and the other side plate (312) is provided with only a grounding plate (32).

5. The connector according to claim 1, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. The base plate (311) is provided with a grounding fisheye and a grounding plate (32).

6. A grounding shield, characterized in that, Includes a shielding body (31), which has a shielding cavity for accommodating and shielding differential pairs. The shielding body (31) is provided with a grounding eye and a grounding plate (32) at one end corresponding to the press-fit end of the connector. Both the grounding eye and the grounding plate (32) can be used to provide shielding between adjacent differential pairs. The grounding eye is used for press-fitting onto the printed circuit board, and the grounding plate (32) is used for inserting into the common hole (222) on the ground plane of the connector and communicating with the ground plane.

7. The grounding shield according to claim 6, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. The shielding body (31) also includes a connecting plate (313). The connecting plate (313) is connected between the two side plates (312) on the side edge away from the base plate (311). The connecting plate (313), the side plates (312), and the base plate (311) together form a frame structure.

8. The grounding shield according to claim 7, characterized in that, The connecting plate (313) is located at one end of the shielding body (31) corresponding to the press-fit end of the connector. The connecting plate (313) can be embedded into the limiting groove (216) on the insulating shell (21) and positioned and engaged with the bottom surface of the limiting groove (216).

9. The grounding shield according to claim 6, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. One side plate (312) is provided with only a grounding fisheye, and the other side plate (312) is provided with only a grounding plate (32).

10. The grounding shield according to claim 6, characterized in that, The shielding body (31) includes a base plate (311) and two side plates (312) vertically connected to both sides of the base plate (311). The base plate (311) and the side plates (312) form the shielding cavity. The base plate (311) is provided with a grounding fisheye and a grounding plate (32).

Images