A common ground structure for connector mating ends and a connector

Abstract

This invention relates to the field of electrical connector technology, specifically to a common ground structure for connector mating ends and a connector. The common ground structure includes a conductive shell and a grounding spring. The conductive shell has a spring mounting cavity and a terminal clearance hole. One end of the grounding spring has a fixing part fixed in the spring mounting cavity, and the other end has a contact part for conductive contact with an adapter contact. The terminal clearance hole is used to avoid the corresponding signal terminal of the connector's terminal module. The conductive shell also has a shielding conductive part for conductive contact with the shielding sheet of the connector's terminal module. By using the conductive shell to install the grounding springs together, the mating requirements of the adapter connector are met, while the grounding springs are made conductive to each other. In this way, the common ground structure formed by the conductive shell, the grounding springs, and the shielding sheets of each terminal module improves the shielding effect of the connector mating end.

Description

Technical Field

[0001] This invention relates to the field of electrical connector technology, and more specifically to a common ground structure for connector mating ends and a connector. Background Technology

[0002] Existing connectors include an insulated outer housing and several terminal modules mounted on the outer housing. The basic structure of the terminal modules is as follows: Figure 1 As shown, the terminal module includes terminals and an insulator 13 injection molded together. The terminals include signal terminals and ground terminals. The signal terminals are arranged in pairs to form differential pairs. The terminals include a spring-loaded end 111 and a fisheye end 112. The insulator is also provided with a shield 12. One end of the connector spring-loaded end is configured as a mating end for mating with the adapter connector, and the other end of the fisheye end is configured as a crimping end for mating with the printed circuit board. The spring-loaded end of the ground terminal is configured as a ground spring for mating with the ground pin of the adapter connector. The ground pin of the adapter connector is configured as an adapter contact. The ground spring has a contact portion that makes conductive contact with the adapter contact. The ground spring is formed by stamping with a copper strip alloy die.

[0003] When the connector's node density is low and the connector line width is wide, the conventional stamping method of forming grounding springs on the grounding terminals cannot be used for material preparation. Figure 2 and Figure 3 As shown, the spring end of the signal terminal needs to be bent in the spreading area 100. To accommodate the wider spring end of the signal terminal, there is no space for the grounding spring to extend from the grounding terminal. To address this issue, a shielding sheet is typically used to extend the grounding spring. Terminal modules employing this structure include... Figure 4 As shown, shielding plates 12 are provided on both sides of the insulator 13 of the terminal module. A shielding spring end 121 is provided near the end spring end 111 of the shielding plate 12, forming the grounding spring of the connector. If the grounding spring extends from the shielding plate, a bending area will exist at the root of the grounding spring to accommodate the insertion. (See reference...) Figure 5 Each terminal module 1 has a bent portion in the bending area of ​​the shielding spring end 121 of the shielding sheet. Due to the abrupt change in the wiring in the bending area, the shielding effect in this area is poor, which degrades the signal transmission performance. Moreover, since the grounding spring of the shielding sheet is a bent structure that is integrated and the surrounding space is small, it is not possible to install a separate shielding component in the bending area, making it difficult to improve the shielding effect in this area. Summary of the Invention

[0004] The purpose of this invention is to provide a common ground structure for the mating ends of a connector to solve the problem of poor shielding effect at the mating ends of current connectors; the purpose of this invention is also to provide a connector to solve the above-mentioned problems.

[0005] The technical solution of the common ground structure of the connector mating ends of the present invention is as follows:

[0006] A common ground structure for connector mating ends includes a conductive shell and a grounding spring. The conductive shell has a spring mounting cavity and a terminal clearance hole. One end of the grounding spring has a fixing part fixed in the spring mounting cavity and the other end has a contact part for conductive contact with an adapter contact. The terminal clearance hole is used to avoid the corresponding signal terminal of the connector's terminal module. The conductive shell also has a shielding conductive part for conductive contact with the shielding sheet of the connector's terminal module.

[0007] Beneficial effects: By using the terminal clearance holes on the conductive shell to avoid the signal terminals of each terminal module, the conductive shell is placed against the shielding sheet. The conductive shielding part on the conductive shell makes conductive contact with the shielding sheet. The conductive shell enables the shielding sheets of each terminal module to conduct to each other. At the same time, the terminal clearance holes avoid the signal terminals to prevent the signal terminals from conducting to the conductive shell. Furthermore, by setting a grounding spring separately, the installation of the grounding spring and the conductive shell can be carried out independently, without being limited by the narrow space of the connector mating end. The conductive shell is used to install each grounding spring together, which meets the mating requirements of the adapter connector while enabling the grounding springs to conduct to each other. In this way, the conductive shell, together with the grounding spring and the shielding sheet of each terminal module, forms a common ground structure, which improves the shielding effect of the connector mating end.

[0008] Furthermore, the conductive shell has a first side facing the shielding sheet of the terminal module and a second side facing away from the shielding sheet. The spring mounting cavity is a through cavity that passes through the first side and the second side. The spring mounting cavity has an opening on the first side for the grounding spring to pass through the through cavity from the first side. The spring mounting cavity is provided with a stop part that forms a stop engagement with the grounding spring.

[0009] Beneficial effect: It enables the grounding spring and the conductive shell to form a blocking fit in the direction away from the shielding plate, which prevents the grounding spring from being pulled out when the adapter contact is pulled out relative to the grounding spring, and is conducive to the reliable fixing of the grounding spring.

[0010] Furthermore, the grounding spring includes a spring body and a widened portion connected to the spring body. The spring mounting cavity includes a clearance hole for avoiding the spring body. The clearance hole has an assembly groove near the opening on the first side for the widened portion to extend into. The bottom surface of the assembly groove forms a stop portion for blocking and engaging with the widened portion.

[0011] Beneficial effects: The widened part of the grounding spring and the bottom of the assembly groove form a stop fit, which facilitates the forming of the grounding spring and is conducive to reliable stop.

[0012] Furthermore, a mounting protrusion is provided on the widened portion along the thickness direction of the grounding spring, and the mounting protrusion is interference-fitted with the mounting groove, thus forming a fixing portion.

[0013] Beneficial effects: The grounding spring is fixed to the conductive shell by the strong protrusion, which is simple in structure and reliable in fixation.

[0014] Furthermore, the conductive shell is provided with a contact groove into which the grounding claw of the shielding sheet extends, and the groove wall of the contact groove constitutes a shielding conductive part.

[0015] Beneficial effects: The shielding conduction is achieved by setting a contact groove for the grounding claw of the shielding plate to insert, resulting in a stable structure and reliable contact.

[0016] Furthermore, the contact groove is connected to the spring mounting cavity.

[0017] Beneficial effects: Facilitates the processing of contact grooves and allows for a compact layout.

[0018] Furthermore, the contact groove is located on one side of the grounding spring in the thickness direction.

[0019] Beneficial effects: It facilitates the formation of grounding claws on the shielding sheet, and allows the shielding sheet of the terminal module to be positioned above the grounding spring, thus limiting the grounding spring.

[0020] Furthermore, the terminal clearance hole has space for the insertion protrusion of the insulator of the terminal module to be inserted.

[0021] Beneficial effect: Utilizing the insertion protrusion of the insulator into the terminal clearance hole is beneficial for the insulation between the signal terminal and the conductive shell.

[0022] Furthermore, the terminal clearance hole has space for the bent portion at the root of the signal terminal's end clip to enter.

[0023] Beneficial effect: The conductive shell is used to shield the bent part at the root of the bullet tip, thereby improving the shielding effect.

[0024] The technical solution of the connector of the present invention is as follows:

[0025] A connector includes a terminal module. The mating end of the connector is further provided with a common ground structure. The common ground structure includes a conductive shell and a grounding spring. The conductive shell is provided with a spring mounting cavity and a terminal clearance hole. One end of the grounding spring is provided with a fixing part fixed in the spring mounting cavity, and the other end is provided with a contact part for conductive contact with an adapter contact. The terminal clearance hole is used to avoid the corresponding signal terminal of the connector's terminal module. The conductive shell is also provided with a shielding conductive part for conductive contact with the shielding sheet of the connector's terminal module.

[0026] Beneficial effects: By using the terminal clearance holes on the conductive shell to avoid the signal terminals of each terminal module, the conductive shell is placed against the shielding sheet. The conductive shielding part on the conductive shell makes conductive contact with the shielding sheet. The conductive shell enables the shielding sheets of each terminal module to conduct to each other. At the same time, the terminal clearance holes avoid the signal terminals to prevent the signal terminals from conducting to the conductive shell. Furthermore, by setting a grounding spring separately, the installation of the grounding spring and the conductive shell can be carried out independently, without being limited by the narrow space of the connector mating end. The conductive shell is used to install each grounding spring together, which meets the mating requirements of the adapter connector while enabling the grounding springs to conduct to each other. In this way, the conductive shell, together with the grounding spring and the shielding sheet of each terminal module, forms a common ground structure, which improves the shielding effect of the connector mating end.

[0027] Furthermore, the conductive shell has a first side facing the shielding sheet of the terminal module and a second side facing away from the shielding sheet. The spring mounting cavity is a through cavity that passes through the first side and the second side. The spring mounting cavity has an opening on the first side for the grounding spring to pass through the through cavity from the first side. The spring mounting cavity is provided with a stop part that forms a stop engagement with the grounding spring.

[0028] Beneficial effect: It enables the grounding spring and the conductive shell to form a blocking fit in the direction away from the shielding plate, which prevents the grounding spring from being pulled out when the adapter contact is pulled out relative to the grounding spring, and is conducive to the reliable fixing of the grounding spring.

[0029] Furthermore, the grounding spring includes a spring body and a widened portion connected to the spring body. The spring mounting cavity includes a clearance hole for avoiding the spring body. The clearance hole has an assembly groove near the opening on the first side for the widened portion to extend into. The bottom surface of the assembly groove forms a stop portion for blocking and engaging with the widened portion.

[0030] Beneficial effects: The widened part of the grounding spring and the bottom of the assembly groove form a stop fit, which facilitates the forming of the grounding spring and is conducive to reliable stop.

[0031] Furthermore, a mounting protrusion is provided on the widened portion along the thickness direction of the grounding spring, and the mounting protrusion is interference-fitted with the mounting groove, thus forming a fixing portion.

[0032] Beneficial effects: The grounding spring is fixed to the conductive shell by the strong protrusion, which is simple in structure and reliable in fixation.

[0033] Furthermore, the conductive shell is provided with a contact groove into which the grounding claw of the shielding sheet extends, and the groove wall of the contact groove constitutes a shielding conductive part.

[0034] Beneficial effects: The shielding conduction is achieved by setting a contact groove for the grounding claw of the shielding plate to insert, resulting in a stable structure and reliable contact.

[0035] Furthermore, the contact groove is connected to the spring mounting cavity.

[0036] Beneficial effects: Facilitates the processing of contact grooves and allows for a compact layout.

[0037] Furthermore, the contact groove is located on one side of the grounding spring in the thickness direction.

[0038] Beneficial effects: It facilitates the formation of grounding claws on the shielding sheet, and allows the shielding sheet of the terminal module to be positioned above the grounding spring, thus limiting the grounding spring.

[0039] Furthermore, the terminal clearance hole has space for the insertion protrusion of the insulator of the terminal module to be inserted.

[0040] Beneficial effect: Utilizing the insertion protrusion of the insulator into the terminal clearance hole is beneficial for the insulation between the signal terminal and the conductive shell.

[0041] Furthermore, the terminal clearance hole has space for the bent portion at the root of the signal terminal's end clip to enter.

[0042] Beneficial effect: The conductive shell is used to shield the bent part at the root of the bullet tip, thereby improving the shielding effect. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the terminal module with a grounding spring on the terminal in the prior art;

[0044] Figure 2 This is a schematic diagram of the terminal before material spreading in the prior art;

[0045] Figure 3 This is a schematic diagram of the terminal after material spreading in the prior art;

[0046] Figure 4 An exploded view of the terminal module of the grounding spring on the shielding sheet in the prior art;

[0047] Figure 5 This is a schematic diagram of multiple terminal modules assembled together in the prior art.

[0048] Figure 6 This is a schematic diagram of the structure of Embodiment 1 of the connector of the present invention;

[0049] Figure 7 for Figure 6 Exploded view of the main components of the connector;

[0050] Figure 8 for Figure 7 A schematic diagram of the terminal module in the diagram;

[0051] Figure 9 for Figure 7 A schematic diagram of the common-site structure in the diagram;

[0052] Figure 10 for Figure 9 Front view of the grounding spring in the middle;

[0053] Figure 11 for Figure 9 Side view of the grounding spring in the middle;

[0054] Figure 12 for Figure 9 A schematic diagram of the conductive shell in the diagram;

[0055] Figure 13 for Figure 12 A schematic diagram of the partial structure at point A;

[0056] Figure 14 for Figure 9 A cross-sectional view of the common-site structure in the middle;

[0057] Figure 15 for Figure 14 A schematic diagram of the local grounding spring assembly structure;

[0058] Figure 16 for Figure 6 A schematic diagram of the assembly structure of the terminal module and the common ground structure;

[0059] Figure 17 for Figure 16 Schematic diagram of the local grounding claw installation structure at point B;

[0060] Figure 18 for Figure 8 A schematic diagram of the terminal structure.

[0061] In the diagram: 100, Display area; 200, Bending area at the root of the end bullet piece; 1, Terminal module; 11, Terminal; 111, End bullet piece end; 112, Terminal fisheye end; 12, Shielding piece; 121, Shielding spring piece end; 122, Grounding claw; 13, Insulator; 131, Insertion protrusion; 2, Common ground structure; 21, Conductive shell; 211, Terminal clearance hole; 212, Contact groove; 213, Assembly groove; 214, Clearance hole; 22, Grounding spring piece; 221, Reinforced protrusion; 222, Plug-in contact part; 3, Outer fixing shell; 4, Fixing piece. Detailed Implementation

[0062] Embodiment 1 of the connector of the present invention:

[0063] In this embodiment, the connector has a common ground structure at the mating end. The signal terminals of each terminal module pass through the terminal clearance holes on the conductive shell, allowing the conductive shell to abut against the shielding sheet. The shielding conductive part on the conductive shell makes conductive contact with the shielding sheet, enabling the shielding sheets of each terminal module to conduct to each other. At the same time, the terminal clearance holes prevent the signal terminals from conducting to the conductive shell. Furthermore, by separately setting grounding springs, the installation of the grounding springs and the conductive shell can be carried out independently, without being limited by the narrow space at the connector mating end. The conductive shell is used to install the grounding springs together, meeting the mating requirements of the compatible connector while enabling the grounding springs to conduct to each other. In this way, the conductive shell, together with the grounding springs and the shielding sheets of each terminal module, forms a common ground structure, improving the shielding effect of the connector mating end.

[0064] Specifically, if Figure 6-18 As shown, the connector is an orthogonal bendable female connector, which includes several terminal modules 1, a common ground structure 2, an outer fixing shell 3, and a fixing plate 4. The terminal modules 1 are arranged side by side in the left-right direction, and the lower end of each terminal module 1 is fixed to the outer fixing shell 3. The common ground structure 2 is disposed between the terminal modules 1 and the outer fixing shell 3. The upper ends of each terminal module 1 are fixed together by the fixing plate 4. The insertion and removal direction of this connector and the adapter connector is the up-down direction.

[0065] Terminal module 1 includes several differential pairs, an insulator 13, and a shielding plate 12. Each differential pair includes two terminals 11 arranged in pairs. Terminal 11 is a signal terminal. Terminal 11 and the insulator 13 are fixed together by injection molding. Terminal 11 has a spring-loaded end 111 extending downward from the insulator 13 and a fisheye end 112 extending forward from the insulator 13. The spring-loaded end 111 is a signal spring for inserting into the signal pins of the adapter connector. The fisheye end 112 has a fisheye structure. The end of the connector with the signal spring is the mating end, and the end with the fisheye is the crimping end. The thickness direction of the insulator 13 of terminal module 1 is left-right. Each terminal module 1 has a shielding plate 12 on both the left and right sides of the insulator 13.

[0066] The common ground structure 2 refers to the common ground structure of the connector mating end. The common ground structure 2 includes a conductive shell 21 and several grounding springs 22. The grounding springs 22 are separately formed parts. The thickness direction of the grounding springs 22 is the front-to-back direction. The grounding springs 22 include a spring body and a widened part connected to the spring body. The widened part is connected to the upper end of the spring body. The lower end of the spring body has a backward-bent portion. The bent portion has a mating contact portion 222 for contacting the grounding pin of the adapter connector. The mating contact portion 222 constitutes a contact portion for conductive contact with the adapter contact. The width direction of the grounding spring 22 is left and right. The width of the widened part of the grounding spring 22 is greater than the width of the spring body. The spring body is connected to the middle part of the widened part in the width direction. The widened part has a forced mounting protrusion 221 on both sides in the width direction. The forced mounting protrusion 221 is a bulge structure that protrudes backward. The grounding spring 22 is forcibly fixed on the conductive shell 21 by the forced mounting protrusion 221.

[0067] The conductive shell 21 is provided with a spring clip mounting cavity, which is a through cavity running vertically. Each spring clip mounting cavity corresponds one-to-one with a grounding spring clip 22. The upper side of the conductive shell 21 forms the first side facing the shielding plate 12 of the terminal module 1, and the lower side forms the second side facing away from the shielding plate 12. The spring clip mounting cavity includes a through-hole 214 and an assembly groove 213 located near the upper opening of the through-hole 214. The through-hole 214 is a rectangular hole, its size allowing the main body of the grounding spring clip 22 to pass through the conductive shell 21 from top to bottom, avoiding the bent portion at the insertion contact 222 position of the grounding spring clip 22, so that the lower end of the grounding spring clip 22 extends downwards outside the conductive shell 21. The width of the clearance hole 214 is smaller than the width of the widened portion of the grounding spring 22. The left and right side walls of the clearance hole 214 near the upper opening are respectively provided with mounting grooves 213. The groove openings of the mounting grooves 213 face upwards. The portions of the widened portion of the grounding spring 22 that are wider than the main body of the spring are respectively inserted into the two mounting grooves 213. The corresponding forced mounting protrusions 221 are interference-fitted with the mounting grooves 213. The widened portion of the grounding spring 22 and the bottom of the mounting groove 213 form a stop fit. The bottom surface of the mounting groove 213 constitutes a stop part that forms a stop fit with the grounding spring 22 in the spring mounting cavity. The forced mounting protrusions 221 constitute a fixing part that fixes the grounding spring 22 in the spring mounting cavity. The groove opening of the mounting groove 213 and the upper opening of the clearance hole 214 together constitute the entry point of the spring mounting cavity for the grounding spring to pass through from the first side. The grounding spring 22 and the conductive shell 21 form a blocking engagement in the downward direction, which prevents the grounding spring 22 from being pulled out when the matching grounding pin is pulled out relative to the grounding spring 22, thus making the grounding spring 22 more securely fixed.

[0068] The conductive housing 21 is also provided with terminal clearance holes 211. The terminal clearance holes 211 are through holes from top to bottom, allowing the corresponding differential pairs of the terminal module 1 to pass through the conductive housing 21 from top to bottom, so that the signal spring of the terminal 11 corresponds to the grounding spring 22 of the common ground structure 2, so that the signal pins and grounding pins of the adapter connector can be inserted. Each terminal clearance hole 211 has spring mounting cavities on the left and right sides, and the terminal clearance holes are connected to the adjacent mounting grooves 213 of the spring mounting cavities. In this embodiment, the junction of the wiring body of terminal 11 and the end bullet piece 111 is a bent structure so that the wiring body and the end bullet piece 111 are arranged perpendicularly. The area where the bend is located is the bend area 200 at the root of the end bullet piece. The insulator 13 of terminal module 1 has an insertion protrusion 131 located on the periphery of the bend structure. The insertion protrusion 131 protrudes downward from the main body of the insulator 13. When the terminal module 1 and the conductive shell 21 are installed, the insertion protrusion 131 can be inserted into the corresponding terminal clearance hole 211. The bend of the corresponding terminal 11 is also located in the terminal clearance hole 211. By using the insertion protrusion 131 of the insulator 13 to insert into the terminal clearance hole 211, it is beneficial to the insulation between the terminal 11 of terminal module 1 and the conductive shell 21. The conductive shell 21 is used to shield the bend at the root of the end bullet piece 111, shielding the electromagnetic interference generated by the signal transmission in the bend area and improving the shielding effect.

[0069] The conductive shell 21 is also provided with a contact groove 212, with the groove opening facing upwards. The shielding plate 12 is provided with a downward protruding grounding claw 122, the root of which is bent toward the insulator 13. When the terminal module 1 is installed on the conductive shell 21, the grounding claw 122 of the corresponding shielding plate 12 extends into the contact groove 212, and the left and right sides of the corresponding grounding claw 122 contact the left and right side walls of the contact groove 212 respectively. The groove wall of the contact groove 212 constitutes the shielding conductive part of the conductive shell 21 that makes conductive contact with the shielding plate 12 of the terminal module 1 of the connector. Thus, the conductive shell 21 is used to make the corresponding shielding plates 12 of each terminal module 1 mutually conductive, maintaining the continuity of the return flow between the conductive shell 21 and the shielding plate 12, and improving the shielding effect. The contact groove 212 corresponds one-to-one with the spring plate mounting cavity. The contact groove 212 is located behind the avoidance hole 214 and is connected to the corresponding avoidance hole 214. This allows the shielding plate 12 of the terminal module 1 to be positioned above the grounding spring plate 22, thereby limiting the grounding spring plate 22.

[0070] The position, number, and size of the terminal clearance holes 211 on the conductive shell 21, as well as the number and position of the grounding springs 22, are determined according to the arrangement of each terminal module 1. That is, the setting of the conductive shell 21 and the grounding springs 22 is designed to match the installation requirements of the terminal module 1. For each terminal module 1 of the connector in this embodiment, the differential pairs of the same terminal module 1 are corresponding one after the other. Therefore, the differential pairs of each terminal module 1 correspond to a row of terminal clearance holes 211 arranged at intervals on the conductive shell 21. Thus, several terminal modules 1 arranged side by side correspond to several rows of terminal clearance holes 211 distributed in the left and right directions. Since the differential pairs of adjacent end sub-modules 1 are staggered in this embodiment, the adjacent two rows of terminal clearance holes 211 on the conductive shell 21 are also staggered. Each terminal clearance hole 211 has a spring plate mounting cavity on both the left and right sides. The spring plate mounting cavity and the contact groove 212 are arranged in a row. The grounding claws 122 of the two back shields 12 of adjacent end sub-modules 1 are respectively inserted into the two rows of staggered contact grooves 212. The grounding claws 122 of the two opposite shields 12 of adjacent end sub-modules 1 can avoid each other by using their corresponding terminal clearance holes 211. This facilitates the installation of terminal modules 1 with the same specifications.

[0071] The openings of the terminal clearance hole 211, the groove of the contact groove 212, and the groove of the assembly groove 213 are all chamfered to facilitate the insertion of the corresponding parts of the terminal module 1. The conductive shell 21 has limiting protrusions on both its front and rear sides. The outer fixing shell 3 includes a main body and two side walls on the main body. The main body of the outer fixing shell 3 has a portion extending out of the conductive shell 21 to accommodate the grounding spring 22 and a receiving hole for the signal spring. The front and rear side walls each have vertically extending limiting grooves into which the limiting protrusions extend. After the grounding spring 22 is installed on the conductive shell 21, it is then installed together on the outer fixing shell 3. The outer fixing shell 3, in conjunction with each terminal module 1 and the fixing piece 4, ensures the stable assembly of the common ground structure 2. The grounding springs 22 and the conductive shell 21 of the common ground structure 2 are connected to the shielding pieces 12 of each terminal module 1, satisfying the requirements for the grounding spring 22 and improving electromagnetic interference at the connector mating ends, thus enhancing signal transmission performance.

[0072] Embodiment 2 of the connector in this invention:

[0073] This embodiment provides a different spring mounting cavity configuration than Embodiment 1. The difference between this embodiment and Embodiment 1 is that the spring mounting cavity in Embodiment 1 is a through cavity running vertically. In this embodiment, the spring mounting cavity is a downward-facing forced-fit groove, which constitutes the spring mounting cavity. The grounding spring is forcibly fixed in the forced-fit groove from bottom to top.

[0074] Embodiment 3 of the connector in this invention:

[0075] This embodiment provides a different form of stop configuration than Embodiment 1. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the widened portion of the grounding spring forms a stop fit with the bottom surface of the mounting groove, and the bottom surface of the mounting groove constitutes the stop. In this embodiment, the grounding spring does not have a widened portion, and the upper end of the grounding spring has a bent section bent along the thickness direction. The upper side of the conductive shell has a groove for the bent section to be inserted, and the bent section and the bottom of the groove form a stop, with the bottom of the groove constituting the stop.

[0076] Embodiment 4 of the connector in this invention:

[0077] This embodiment provides a different fixing part arrangement than Embodiment 1. The difference between this embodiment and Embodiment 1 is that the widened part in Embodiment 1 has a reinforcing protrusion, which constitutes the fixing part. In this embodiment, the widened part is welded and fixed in the assembly groove.

[0078] Embodiment 5 of the connector in this invention:

[0079] This embodiment provides a different shielding conduction configuration than Embodiment 1. The difference between this embodiment and Embodiment 1 is that, in Embodiment 1, the conductive shell has a contact groove into which the grounding claw of the shielding sheet extends, and the groove wall constitutes the shielding conduction portion. In this embodiment, the shielding sheet has a spring piece, which directly presses against the upper side of the conductive shell, and the part of the conductive shell that contacts the spring piece constitutes the shielding conduction portion.

[0080] Embodiment 6 of the connector in this invention:

[0081] This embodiment provides a different contact groove arrangement than Embodiment 1. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the contact groove and the spring mounting cavity are correspondingly connected. In this embodiment, the contact groove and the spring mounting cavity are spaced apart.

[0082] Embodiment 7 of the connector in this invention:

[0083] This embodiment provides a contact groove arrangement different from that of Embodiment 1. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the contact groove is located on one side of the grounding spring in the thickness direction. In this embodiment, the contact groove is located on one side of the grounding spring in the width direction.

[0084] Embodiment 8 of the connector in this invention:

[0085] This embodiment provides an insulator configuration different from Embodiment 1. The difference lies in that, in Embodiment 1, the insulator of the terminal module has an insertion protrusion, and the terminal clearance hole has space for the insertion protrusion of the terminal module's insulator to be inserted. In this embodiment, however, there is no insertion protrusion, and the insulator of the terminal module is located above the conductive shell.

[0086] Embodiment 9 of the connector in this invention:

[0087] This embodiment provides a different terminal arrangement than Embodiment 1. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the root of the terminal spring tip has a bent portion, and the terminal clearance hole has space for the bent portion at the root of the signal terminal spring tip to enter. In this embodiment, however, the root of the terminal spring tip does not have a bent portion, and the thickness direction of the terminal trace body is consistent with that of the terminal spring tip.

[0088] Embodiment 10 of the connector in this invention:

[0089] This embodiment provides a different common ground structure configuration than Embodiment 1. The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the end of the grounding spring with the insertion contact portion extends out of the conductive shell. In this embodiment, however, the end of the grounding spring with the insertion contact portion is located inside the conductive shell.

[0090] An embodiment of the common ground structure of the connector mating ends in this invention:

[0091] The common ground structure of the connector mating end in this embodiment is the same as the common ground structure in any of the embodiments 1-10 of the connector described above, and will not be repeated here.

[0092] 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 common ground structure for connector mating ends, characterized in that, It includes a conductive shell and a grounding spring. The conductive shell has a spring mounting cavity and a terminal clearance hole. One end of the grounding spring has a fixing part that is fixed in the spring mounting cavity, and the other end has a contact part for conductive contact with the adapter contact. The terminal clearance hole is used to avoid the corresponding signal terminal of the connector's terminal module. The conductive shell also has a shielding conductive part for conductive contact with the shielding sheet of the connector's terminal module.

2. The connector mating end common ground structure according to claim 1, characterized in that, The conductive shell has a first side facing the shielding sheet of the terminal module and a second side facing away from the shielding sheet. The spring mounting cavity is a through cavity that passes through the first side and the second side. The spring mounting cavity has an opening on the first side for the grounding spring to pass through the through cavity from the first side. The spring mounting cavity is provided with a stop part that forms a stop engagement with the grounding spring.

3. The connector mating end common ground structure according to claim 2, characterized in that, The grounding spring includes a spring body and a widened portion connected to the spring body. The spring mounting cavity includes a clearance hole for avoiding the spring body. The clearance hole has an opening near the first side with a mounting groove for the widened portion to extend into. The bottom surface of the mounting groove forms a stop portion for blocking and engaging with the widened portion.

4. The connector mating end common ground structure according to claim 3, characterized in that, The widened part has a forced mounting protrusion along the thickness direction of the grounding spring. The forced mounting protrusion is interference-fitted with the mounting groove, and the forced mounting protrusion constitutes a fixing part.

5. The connector mating end common ground structure according to claim 1, 2, 3, or 4, characterized in that, The conductive shell is provided with a contact groove into which the grounding claw of the shielding sheet extends, and the groove wall forms a shielding conductive part.

6. The connector mating end common ground structure according to claim 5, characterized in that, The contact groove is connected to the spring mounting cavity.

7. The connector mating end common ground structure according to claim 5, characterized in that, The contact groove is located on one side of the grounding spring in the thickness direction.

8. The connector mating end common ground structure according to claim 1, 2, 3, or 4, characterized in that, The terminal clearance hole has space for the insertion protrusion of the insulator of the terminal module to be inserted.

9. The connector mating end common ground structure according to claim 1, 2, 3, or 4, characterized in that, The terminal clearance hole has space for the bent portion at the root of the terminal bullet end of the signal terminal to enter.

10. A connector comprising a terminal module, characterized in that, The connector's mating end is further provided with a common ground structure, which is the common ground structure of the connector mating end as described in any one of claims 1-9.

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