High speed connector with reliable contact double contacts

Abstract

The application provides a high-speed connector with reliable contact double contacts, comprising a male connector and a matched female connector, the male connector comprises a male base and a plurality of male pin assemblies arranged in the male base in a grid shape, the male pin assembly comprises two male pins; the female connector comprises a female base and a plurality of signal differential pairs arranged in the female base in a grid shape, each signal differential pair comprises two female pins, a plurality of male limiting seats are arranged in the male connector; and a plurality of female limiting seats are arranged in the female connector. Compared with the prior art, in the high-speed connector, when matched, the male limiting seats press on the male pins, so that the male contacts contact the female pins, the female limiting seats press on the female pins, so that the female contacts contact the male pins, and the male pins and the female pins form two reliable contact points, which is helpful for stable signal transmission.

Description

Technical Field

[0001] This invention relates to the field of connectors, and in particular to a high-speed connector with reliable dual contacts. Background Technology

[0002] Electronic connectors, also known as circuit connectors or electrical connectors, are conductor devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to the other. An electronic connector is an electrical system that provides a separable interface for connecting two sub-electronic systems. Simply put, a connector is a component used to complete the electrical connection between circuits or electronic devices, acting as a bridge between them. However, in existing electronic connectors, the contact between the female and male pins is unstable, causing interruptions in current signal transmission. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a high-speed connector with reliable dual contacts, ensuring stable contact between the female and male pins and stable current signal transmission.

[0004] The technical solution adopted in this invention is as follows: A high-speed connector with reliable dual contacts includes a male connector and a mating female connector. The male connector includes a male base and a plurality of male pin assemblies arranged in a grid within the male base, each male pin assembly including two male pins. The female connector includes a female base and a plurality of signal differential pairs arranged in a grid within the female base, each signal differential pair including two female pins. The male connector has a plurality of male limiting seats for abutting against corresponding male pins so that the male contacts on the male pins contact the female pins. The female connector has a plurality of female limiting seats for abutting against corresponding female pins so that the female contacts on the female pins contact the male pins.

[0005] Preferably, the male terminal base has multiple male terminal slots extending through its thickness direction. The male terminal slots are arranged in a grid pattern within the male terminal base. Each male terminal slot has an insulating guide seat, and a male terminal contact limiting seat is disposed on the insulating guide seat. Each male terminal pin assembly includes a male terminal shield and two male terminal pins. The male terminal shield is fitted onto the guide seat corresponding to the male terminal slot. The two male terminal pins form a male terminal pin assembly. The male terminal pin assembly is located within the guide seat and fixed to the male terminal shield by a male terminal fixing adhesive seat. Each male terminal pin is divided into a male terminal spring portion, a male terminal elastic portion, a male terminal connecting portion, and a male terminal external portion connected in sequence. The male terminal external portion extends from the bottom of the male terminal base, and the male terminal spring portion extends from the male terminal slot toward the female terminal connector. The male terminal contact is located on the male terminal spring portion, and the male terminal contact limiting seat is aligned with the male terminal elastic portion of each male terminal pin on the insulating guide seat.

[0006] More preferably, the male contact limiting seat includes a male platform portion disposed on an insulating guide seat and a male step portion disposed on the male platform for abutting against the male elastic portion when the male connector and female connector are connected. The height of the male step portion is not less than 0.2 mm, and the distance between the male step portion and the male contact of the male signal terminal is not less than 1.5 mm.

[0007] More preferably, the female end base includes a receiving groove, and the female end base has multiple female end slots through it in its thickness direction, the female end slots being arranged in a grid pattern at the bottom of the receiving groove; the female end connector includes multiple first substrate assemblies and multiple second substrate assemblies, the first substrate assemblies and the second substrate assemblies being laterally spaced apart within the female end base; the signal differential pairs are divided into first signal differential pairs within the first substrate assemblies and second signal differential pairs within the second substrate assemblies; the first substrate assembly includes a first female end substrate, multiple first signal differential pairs longitudinally embedded within the first female end substrate, a first female end hollow shielding sheet disposed on one side of the first female end substrate, and a first female end flat shielding sheet disposed on one side of the first female end hollow shielding sheet, and a female end contact limiting seat is disposed on the first female end hollow shielding sheet. The first female terminal substrate corresponds to each female terminal pin within the first female terminal substrate; the second substrate assembly includes a second female terminal substrate, multiple second signal differential pairs longitudinally embedded within the second female terminal substrate, a second female terminal perforated shielding sheet disposed on one side of the second female terminal substrate, and a second female terminal flat shielding sheet disposed on one side of the second female terminal perforated shielding sheet. A female terminal contact limiting seat is disposed on the second female terminal perforated shielding sheet and corresponds to each female terminal pin within the second female terminal substrate; each female terminal pin within the signal differential pair is divided into a female terminal spring portion, a female terminal elastic portion, a female terminal connecting portion, and a female terminal external portion connected in sequence. The female terminal external portion faces the side of the female terminal substrate, the female terminal spring portion extends into the female terminal slot facing the male terminal connector, the female terminal contact is located on the female terminal spring portion, and each female terminal contact limiting seat is aligned with the female terminal elastic portion of each female terminal pin on the female terminal perforated shielding sheet.

[0008] More preferably, the female contact limiting seat includes a female platform portion and a female step portion disposed on the female platform for abutting against the female elastic portion when the male connector and the female connector are connected. The height of the female step portion is not less than 0.2 mm, and the distance between the female step portion and the female contact is not less than 1.5 mm.

[0009] More preferably, both the male and female external connectors are fisheye-shaped, with the thickness of the male external connector being less than the thickness of the male connector and the thickness of the female external connector being less than the thickness of the female connector.

[0010] Preferably, the first female substrate has a plurality of first accommodating slots for accommodating first signal differential pairs. The first accommodating slots are hollow, and adjacent first accommodating slots are connected by first connecting ribs. The first connecting ribs are provided with first through slots for the first signal differential pairs to pass through. The second female substrate has a plurality of second accommodating slots for accommodating second signal differential pairs. The second accommodating slots are hollow, and adjacent second accommodating slots are connected by second connecting ribs. The second connecting ribs are provided with second through slots for the second signal differential pairs to pass through.

[0011] More preferably, the first female end hollow shielding sheet is provided with a first shielding groove corresponding to the first receiving groove. The two ends of the first shielding groove are respectively formed with two first inner grounding terminals and two first outer grounding terminals. The two first inner grounding terminals face the male connector, and the two first outer grounding terminals face one side of the first female end substrate. The first outer grounding terminals are fisheye-shaped. The second female end hollow shielding sheet is provided with a second shielding groove corresponding to the second receiving groove. The two ends of the second shielding groove are respectively formed with two second inner grounding terminals and two second outer grounding terminals. The two second inner grounding terminals face the male connector, and the two second outer grounding terminals face one side of the second female end substrate. The second outer grounding terminals are fisheye-shaped. The groove walls of the first shielding groove and the second shielding groove are inclined.

[0012] More preferably, the bottom of the male end base is provided with a male end protective sleeve, and the male end protective sleeve is provided with male end protection grooves corresponding to each male end slot; the male end protective sleeve is made of electroplated plastic and has a metal plating layer on the surface.

[0013] More preferably, the female connector further includes a female protective sleeve and a female snap fastener for positioning each female substrate. The female protective sleeve is inserted into the receiving groove, and the female protective sleeve is provided with a plurality of female protective grooves for one end of each signal differential pair having a female external connector protruding. The female protective sleeve is made of electroplated plastic with a metal plating layer on the surface. The female snap fastener is provided with a plurality of female snap grooves that mate with each female substrate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a high-speed connector with reliable dual contacts. Male end limiting seats and female end limiting seats are respectively provided on both sides of the male end pin and the female end pin. When mating, the male end limiting seat presses against the male end pin, so that the male end contact contacts the female end pin, and the female end limiting seat presses against the female end pin, so that the female end contact contacts the male end pin. In this way, the male end pin and the female end pin form two reliable contact points, which helps to stabilize signal transmission. Attached Figure Description

[0015] Figure 1 A schematic diagram of a high-speed connector with reliable dual contacts provided by the present invention. Figure 1 ; Figure 2 A schematic diagram of a high-speed connector with reliable dual contacts provided by the present invention. Figure 2 ; Figure 3 An exploded view of a high-speed connector with reliable dual contacts provided by the present invention; Figure 4 An exploded view of the male connector in a high-speed connector with reliable dual contacts provided by this invention; Figure 5 A schematic diagram of the male connector in a high-speed connector with reliable dual contacts provided by the present invention; Figure 6 A schematic diagram of the male connector pin in a high-speed connector with reliable dual contacts provided by the present invention; Figure 7 An exploded view of the female connector in a high-speed connector with reliable dual contacts provided by this invention; Figure 8 An exploded view of the first substrate assembly in a high-speed connector with reliable dual contacts provided by the present invention; Figure 9 An exploded view of the second substrate assembly in a high-speed connector with reliable dual contacts provided by the present invention; Figure 10 A schematic diagram of the female end pins in a high-speed connector with reliable dual contacts provided by the present invention; Figure 11 This is a schematic diagram of a female end limiting seat in a high-speed connector with reliable dual contacts provided by the present invention; Figure 12 This is a schematic diagram illustrating the mating of male and female pins in a high-speed connector with reliable dual contacts provided by the present invention. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0017] Figures 1 to 12 This is a preferred embodiment of a high-speed connector with reliable dual contacts provided by the present invention. For example... Figures 1 to 12As shown, the high-speed connector includes a male connector 10 and a mating female connector 20. The male connector 10 includes a male base 11 and a plurality of male pin assemblies 12 arranged in a grid within the male base, each male pin assembly 12 including two male pins 121. The female connector 20 includes a female base 21 and a plurality of signal differential pairs 22 arranged in a grid within the female base, each signal differential pair 22 including two female pins 221. The connector 10 has multiple male end limiting seats 13 for abutting against the corresponding male end pin 121 so that the male end contact 12105 on the male end pin 121 contacts the female end pin 221; the female end connector 20 has multiple female end limiting seats 23 for abutting against the corresponding female end pin 221 so that the female end contact 22105 on the female end pin 221 contacts the male end pin 121. In this way, the male end pin and the female end pin form two reliable contact points, which helps to stabilize signal transmission.

[0018] The male terminal base 11 has multiple male terminal slots 111 extending through its thickness direction. These slots are arranged in a grid pattern within the male terminal base 11. Each male terminal slot 111 contains an insulating guide seat 112, and a male terminal contact limiting seat 13 is disposed on the insulating guide seat 112. Each male terminal pin assembly 12 includes a male terminal shielding plate 122 and two male terminal pins 121. The male terminal shielding plate 122 is fitted onto the insulating guide seat 112 corresponding to the male terminal slot 111. The two male terminal pins 121 form a male terminal pin assembly. The male terminal pin assembly is located within the insulating guide seat 112 and fixed to the male terminal shielding plate 122 by a male terminal fixing adhesive seat 123. Each male terminal pin 121 is divided into a male terminal spring portion 12101, a male terminal elastic portion 12102, a male terminal connecting portion 12103, and a male terminal external portion 12104, connected sequentially. The external connector 12104 extends from the bottom of the male base 11, and the male spring portion 12101 extends from the male slot 111 toward the female connector 20. The male contact 12105 is located on the male spring portion 12101. The male contact limiting seat 13 is aligned with the male elastic portion 12102 of each male pin 121 on the insulating guide seat 112. When the male connector 10 mates with the female connector 20, the male spring portion 12101 of the male pin 121 in the male connector 10 deforms and inserts into the female connector 20. The male contact limiting seat 13 presses against the male elastic portion 12102 of the male pin 121, so that the male contact 12105 on the male spring portion 12101 fits against the female elastic portion 22102 on the female pin 221 to form a stable and reliable contact, which helps to stabilize signal transmission. The male end spring portion 1201 is deformed outward relative to the male end elastic portion 1202 to form a protrusion, which is the male end contact 12105.

[0019] The male contact limiting seat 13 includes a male platform portion 131 disposed on an insulating guide seat 112 and a male step portion 132 disposed at the end of the male platform portion 131 for abutting against the male elastic portion 12102 when the male connector and the female connector are mated. The male platform portion and the male step portion are smoothly transitioned. The height of the male step portion 132 is not less than 0.2mm, and the distance between the male step portion 132 and the male contact 12105 is not less than 1.5mm. Thus, when the male connector 10 and the female connector 20 are mated, the male step portion 132 abuts against the male elastic portion 12102, so that the male contact 12105 stably contacts the female pin 221.

[0020] The bottom of the male terminal base 11 is provided with a male terminal protective sleeve 14, and the male terminal protective sleeve 14 is provided with male terminal protective grooves 141 corresponding to each male terminal slot. The top of the male terminal shielding plate 122 forms a top mating part that mates with the female terminal connector 20, and the bottom of the male terminal shielding plate forms two male terminal external grounding terminals that extend out of the male terminal slots. Both male terminal external grounding terminals are fisheye shaped.

[0021] The female end base 21 includes a receiving groove 2101, and a plurality of female end slots 211 are provided through the female end base in its thickness direction. The female end slots 211 are arranged in a grid pattern at the bottom of the receiving groove 2101. The female end connector 20 includes a plurality of first substrate assemblies 24 and a plurality of second substrate assemblies 25, which are laterally spaced apart from each other in the female end base 21. The signal differential pair 22 is divided into a first signal differential pair 2201 located in the first substrate assembly and a second signal differential pair 2202 located in the second substrate assembly. The first substrate assembly 24 includes a first female end substrate 2201. 41. A plurality of first signal differential pairs 2201 longitudinally embedded in the first female end substrate, a first female end hollow shielding sheet 242 disposed on one side of the first female end substrate, and a first female end flat shielding sheet 243 disposed on one side of the first female end hollow shielding sheet; a female end contact limiting seat 23 is disposed on the first female end hollow shielding sheet 242 and corresponds to each female end pin 221 in the first female end substrate 241; the second substrate assembly 25 includes a second female end substrate 251, a plurality of second signal differential pairs 2202 longitudinally embedded in the second female end substrate, a second female end hollow shielding sheet 252 disposed on one side of the second female end substrate 251, and a first female end flat shielding sheet 243 disposed on the first female end hollow shielding sheet 242 and corresponding to each female end pin 221 in the first female end substrate 241; A second female end flat shield 253 is located on one side of the two female end hollow shielding sheets. A female end contact limiting seat 22105 is disposed on the second female end hollow shielding sheet 252 and corresponds to each female end pin 221 in the second female end base 251. Each female end pin 221 in the signal differential pair is divided into a female end spring part 22101, a female end elastic part 22102, a female end connecting part 22103, and a female end external part 22104 connected in sequence. The female end external part 22104 faces the side of the female end base 21. The female end spring part 22101 extends into the female end slot 211 and faces the male end connector 10. The female end contact 22105 is located at the female end. On the spring portion 22101, each female end contact limiting seat 23 aligns with the female end elastic portion 22102 of each female end pin on the female end hollow shield. When the male end connector 10 mates with the female end connector 20, the female end spring portion 22101 of the female end pin 221 in the female end connector 20 deforms and inserts into the male end connector 10. The female end contact limiting seat 23 presses against the female end elastic portion 22102 of the female end pin 221, so that the female end contact 22105 on the female end spring portion 22101 fits against the male end elastic portion 12102 on the male end pin 121, forming a stable and reliable contact, which helps to stabilize signal transmission. The female end spring portion 22101 protrudes outward relative to the female end elastic portion 22102, which is the female end contact 22105. Figure 10 As shown, the angle between the female end spring portion 22101 and the female end external connection portion 22104 in each female end pin 221 is 90 degrees. A section in the female end connecting portion 22103 is inclined. The two ends of the female end connecting portion 22103 are respectively connected to the female end elastic portion 22102 and the female end external connection portion 22104.

[0022] The female contact limiting seat 23 includes a female platform portion 231 and a female step portion 232 disposed on the female platform for abutting against the female elastic portion when the male connector and the female connector are mated. The height of the female step portion 232 is not less than 0.2 mm, and the distance between the female step portion 232 and the female contact 22105 is not less than 1.5 mm. Thus, when the male connector 10 and the female connector 20 are mated, the female step portion 232 abuts against the female contact 22105, so that the female contact 22105 stably contacts the male pin 121.

[0023] Both the male external connector 12104 and the female external connector 22104 are fisheye shaped. The thickness of the male external connector 12104 is less than the thickness of the male connector 12103, and the thickness of the female external connector 22104 is less than the thickness of the female connector 22103. The thickness of the main body of each pin is 0.2mm to ensure the overall rigidity of the connector. The thickness of the male external connector 12104 and the female external connector 22104 is 0.15mm, which allows them to be inserted into smaller PCB vias, improves the via impedance, and thus ensures better signal transmission performance.

[0024] The first female substrate 241 is provided with a plurality of first accommodating slots 2411 for accommodating first signal differential pairs. The first accommodating slots 2411 are hollowed out. Adjacent first accommodating slots are connected by first connecting ribs 2412. The first connecting ribs 2412 are provided with first through slots for the first signal differential pairs to pass through. Each first signal differential pair is inserted into the corresponding first accommodating slot 2411. Except for the positions of each first connecting rib 2412 which are covered, the other positions of the first signal differential pair are in the hollowed-out first accommodating slots 2411. The second female substrate 251 has multiple second accommodating slots 2511 for accommodating second signal differential pairs. These slots are hollowed out, and adjacent slots are connected by second connecting ribs 2512. Each connecting rib 2512 has a through slot for the second signal differential pairs to pass through. Each second signal differential pair is inserted into its corresponding second slot 2511. Except for the positions of the second connecting ribs 2512, the remaining positions of the second signal differential pair are within the hollowed-out second slots 2511. Thus, each female substrate contains a signal differential pair. Except for a few locations where the connecting ribs are made of plastic (to ensure injection molding and mechanical strength), the medium at other locations is air-plastic-air. This aims to reduce crosstalk between signal differential pairs while minimizing the molding difficulty and mechanical strength of the plastic substrate, and simultaneously reducing dielectric loss. Within each signal differential pair, the medium between the two female pins, except for a few locations where the plastic connecting ribs are made of plastic (to ensure injection molding and mechanical strength), is air. This aims to minimize dielectric loss while minimizing the molding difficulty and mechanical strength of the plastic substrate. Both the first and second female substrates are made of plastic.

[0025] The first female end hollow shielding plate 242 is provided with a first shielding groove 2421 corresponding to the first receiving groove 2411. Two first inner grounding terminals 24211 and two first outer grounding terminals 24212 are formed at both ends of the first shielding groove 2421, respectively. The two first inner grounding terminals 24211 face the male connector, and the two first outer grounding terminals 24212 face one side of the first female end substrate 241. The first outer grounding terminals 24212 are fisheye-shaped. The inlet and outlet ends of each first receiving groove 2411 within the first female end substrate 241 form a 90-degree angle. The shape of the first receiving groove 2411 is similar to... The first signal differential pair corresponds to the first shielding groove 2421 and the first receiving groove 2411. When the first female end hollow shielding sheet 242 is attached to one side of the first female end substrate 241, the groove wall of the first shielding groove 2421 extends into the first receiving groove 2411. The two first internal grounding terminals 24211 surround the two sides of the female end spring piece 22101 on the first signal differential pair, and the two first external grounding terminals 24212 are located on both sides of the female end external connection part 22104 on the first signal differential pair. In this way, the first shielding groove 2421 surrounds the signal differential pair located in the first receiving groove 2411, reducing interference.

[0026] The second female end hollow shielding plate 252 is provided with a second shielding groove 2521 corresponding to the second receiving groove 2511. Two second inner grounding terminals 25211 and two second outer grounding terminals 25212 are formed at both ends of the second shielding groove 2521, respectively. The two second inner grounding terminals 25211 face the male connector, and the two second outer grounding terminals 25212 face one side of the second female end substrate 251. The second outer grounding terminals 25212 are fisheye shaped. The inlet and outlet ends of each second receiving groove 2511 within the second female end substrate 251 form a 90-degree angle. The shape of the second shielding groove 2521 corresponds to the shape of the second receiving groove 2511. When the second female end hollow shielding plate 252 is attached to one side of the second female end base plate 251, the groove wall of the second shielding groove 2521 extends into the second receiving groove 2511. The two second inner grounding terminals 25211 surround the two sides of the female end spring piece 22101 on the second signal differential pair, and the two second outer grounding terminals 25212 are located on both sides of the female end outer connection part 22104 on the second signal differential pair. This surrounds the signal differential pair located in the second receiving groove 2511, reducing interference. When the male connector and the female connector are mated, the inner grounding terminals on each female end hollow shielding plate 252 respectively mate with the top mating part of the male end shielding plate on the male connector, and the two female end inner grounding terminals are locked on both sides of the male end shielding plate.

[0027] The walls of the first shielding groove 2421 and the second shielding groove 2521 are inclined, and the angle between the groove wall and the bottom of the groove is 97 degrees, making the entire shielding groove V-shaped. Compared with a 90-degree vertical groove wall, the manufacturing difficulty is reduced while ensuring the shielding effect of the shielding sheet on the signal terminals.

[0028] The female connector 20 also includes a female protective sleeve 26 and a female snap fastener 27 for positioning each female substrate. The female protective sleeve 26 is inserted into the receiving groove 211. The female protective sleeve 26 is provided with a plurality of female protective grooves 261 for one end of each signal differential pair with the female external part protruding. The female snap fastener 27 is provided with a plurality of female snap grooves 271 that cooperate with each female substrate, thereby positioning each female substrate and preventing each female substrate from becoming loose.

[0029] Both the male end protective sleeve 14 and the female end protective sleeve 26 are made of electroplated plastic with a metal plating layer on the surface, which reduces crosstalk.

[0030] In summary, the technical solution of this invention can fully and effectively achieve the above-mentioned objectives. Furthermore, the structure and functional principles of this invention have been fully verified in the embodiments, achieving the expected effects and objectives. Without departing from the principles and essence of this invention, various changes or modifications can be made to the embodiments. Therefore, this invention includes all substitutions within the scope mentioned in the patent application claims, and any equivalent changes made within the scope of this patent application are within the scope of the patent application.

Claims

1. A high-speed connector with reliable dual contacts, comprising a male connector and a mating female connector, wherein the male connector includes a male base and a plurality of male pin assemblies arranged in a grid within the male base, each male pin assembly including two male pins; the female connector includes a female base and a plurality of signal differential pairs arranged in a grid within the female base, each signal differential pair including two female pins, characterized in that: The male connector has multiple male contact limiting seats for abutting against the corresponding male pins so that the male contacts on the male pins contact the female pins; the female connector has multiple female contact limiting seats for abutting against the corresponding female pins so that the female contacts on the female pins contact the male pins.

2. The high-speed connector with reliable dual contacts according to claim 1, characterized in that: The male terminal base has multiple male terminal slots extending through its thickness direction. These slots are arranged in a grid pattern within the male terminal base. Each male terminal slot contains an insulating guide seat, and a male terminal contact limiting seat is disposed on the insulating guide seat. Each male terminal pin assembly includes a male terminal shield and two male terminal pins. The male terminal shield is fitted onto the insulating guide seat corresponding to the male terminal slot. The two male terminal pins form a male terminal pin assembly. The male terminal pin assembly is located within the insulating guide seat and fixed to the male terminal shield by a male terminal fixing adhesive seat. Each male terminal pin is divided into a male terminal spring portion, a male terminal elastic portion, a male terminal connecting portion, and a male terminal external portion connected in sequence. The male terminal external portion extends from the bottom of the male terminal base, and the male terminal spring portion extends from the male terminal slot towards the female terminal connector. The male terminal contact is located on the male terminal spring portion, and the male terminal contact limiting seat is aligned with the male terminal elastic portion of each male terminal pin on the insulating guide seat.

3. The high-speed connector with reliable dual contacts according to claim 2, characterized in that: The male contact limiting seat includes a male platform portion disposed on an insulating guide seat and a male step portion disposed on the platform for abutting against the male elastic portion when the male connector and female connector are connected. The height of the male step portion is not less than 0.2 mm, and the distance between the male step portion and the male contact is not less than 1.5 mm.

4. The high-speed connector with reliable dual contacts according to claim 2, characterized in that: The female end base includes a receiving groove, and the female end base has multiple female end slots through it in its thickness direction. The female end slots are arranged in a grid pattern at the bottom of the receiving groove. The female end connector includes multiple first substrate assemblies and multiple second substrate assemblies. The first substrate assemblies and the second substrate assemblies are laterally spaced apart in the female end base. The signal differential pairs are divided into a first signal differential pair located within a first substrate assembly and a second signal differential pair located within a second substrate assembly. The first substrate assembly includes a first female substrate, multiple first signal differential pairs vertically embedded within the first female substrate, a first female substrate perforated shielding sheet disposed on one side of the first female substrate, and a first female substrate flat shielding sheet disposed on one side of the first female substrate perforated shielding sheet. Female substrate contact limiting seats corresponding to each female substrate pin are disposed on the first female substrate perforated shielding sheet. The second substrate assembly includes a second female substrate, multiple second signal differential pairs vertically embedded within the second female substrate, and a first female substrate perforated shielding sheet disposed on one side of the first female substrate perforated shielding sheet. A second female end hollow shielding sheet on one side of the second female end substrate and a second female end flat shielding sheet on one side of the second female end hollow shielding sheet are provided on the second female end hollow shielding sheet. The female end contact limiting seat corresponding to each female end pin in the second female end substrate is provided on the second female end hollow shielding sheet. Each female end pin in the signal differential pair is divided into a female end spring part, a female end elastic part, a female end connecting part and a female end external part connected in sequence. The female end external part faces the side of the female end base. The female end spring part extends into the female end slot and faces the male end connector. The female end contact is located on the female end spring part. Each female end contact limiting seat is aligned with the female end elastic part of each female end pin on the female end hollow shielding sheet.

5. The high-speed connector with reliable dual contacts according to claim 4, characterized in that: The female contact limiting seat includes a female platform portion and a female step portion disposed on the platform for abutting against the female elastic portion when the male connector and the female connector are connected. The height of the female step portion is not less than 0.2 mm, and the distance between the female step portion and the female contact is not less than 1.5 mm.

6. The high-speed connector with reliable dual contacts according to claim 4, characterized in that: Both the male and female external connectors are fisheye shaped. The thickness of the male external connector is less than the thickness of the male connector, and the thickness of the female external connector is less than the thickness of the female connector.

7. The high-speed connector with reliable dual contacts according to claim 4, characterized in that: The first female substrate has multiple first slots for accommodating first signal differential pairs. The first slots are hollow and adjacent first slots are connected by first connecting ribs. The first connecting ribs are provided with first through slots for the first signal differential pairs to pass through. The second female substrate has multiple second slots for accommodating second signal differential pairs. The second slots are hollow and adjacent second slots are connected by second connecting ribs. The second connecting ribs are provided with second through slots for the second signal differential pairs to pass through.

8. The high-speed connector with reliable dual contacts according to claim 7, characterized in that: The first female end hollow shielding sheet has a first shielding groove corresponding to the first receiving groove. The two ends of the first shielding groove form two first inner grounding terminals and two first outer grounding terminals, respectively. The two first inner grounding terminals face the male connector, and the two first outer grounding terminals face one side of the first female end substrate. The first outer grounding terminals are fisheye-shaped. The second female end hollow shielding sheet has a second shielding groove corresponding to the second receiving groove. The two ends of the second shielding groove form two second inner grounding terminals and two second outer grounding terminals, respectively. The two second inner grounding terminals face the male connector, and the two second outer grounding terminals face one side of the second female end substrate. The second outer grounding terminals are fisheye-shaped. The groove walls of the first shielding groove and the second shielding groove are inclined.

9. The high-speed connector with reliable dual contacts according to claim 2, characterized in that: The bottom of the male end base is provided with a male end protective sleeve, and the male end protective sleeve is provided with male end protection grooves corresponding to the male end slots; the male end protective sleeve is made of electroplated plastic and has a metal plating layer on the surface.

10. The high-speed connector with reliable dual contacts according to claim 4, characterized in that: The female connector also includes a female protective sleeve and a female snap fastener for positioning each female substrate. The female protective sleeve is inserted into the receiving groove. The female protective sleeve is provided with multiple female protective grooves for the end of each signal differential pair with the female external part to extend out. The female protective sleeve is made of electroplated plastic with a metal plating layer on the surface. The female snap fastener is provided with multiple female snap slots that mate with each female substrate.

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