CN-121983819-A - Ultra-high speed electrical connector with shielding

CN121983819ACN 121983819 ACN121983819 ACN 121983819ACN-121983819-A

Abstract

The invention provides a shielded ultra-high-speed electric connector, which comprises an insulating body, a plurality of terminals and a plurality of terminals, wherein the insulating body is provided with a longitudinal slot which is concavely arranged from the top surface and is used for inserting an electronic module, a plurality of terminal grooves are respectively arranged in the longitudinal side walls of two sides of the slot, a foolproof part is arranged in the slot and is used for dividing the insulating body into a power supply area, a low-speed signal area and a high-speed signal area which are positioned at two sides of the foolproof part, the terminals comprise differential signal terminals distributed in the high-speed signal area and other terminals distributed in the high-speed signal area and the power supply area and the low-speed signal area, every two differential signal terminals are adjacent, two grounding terminals are respectively arranged at two sides of every two adjacent differential signal terminals, a terminal module is formed by every two adjacent differential signal terminals and two grounding terminals positioned at two sides of the two differential signal terminals, and a metal shielding structure is arranged around each terminal module.

Inventors

CAI YOUHUA
LIN HAIYAN

Assignees

深圳市兴万联电子有限公司

Dates

Publication Date: 20260505
Application Date: 20260224

Claims (15)

1. A shielded ultra-high speed electrical connector, comprising: The insulation body is provided with a longitudinal slot which is concaved downwards from the top surface and is used for inserting an electronic module, a plurality of terminal slots are respectively arranged in the longitudinal side walls at two sides of the slot, and a fool-proof part is arranged in the slot and is used for separating the insulation body into a power supply and low-speed signal area and a high-speed signal area which are positioned at two sides of the fool-proof part; The plurality of terminals comprise differential signal terminals distributed in a high-speed signal area, other terminals distributed in the high-speed signal area and a power supply and low-speed signal area, every two differential signal terminals are adjacent, two sides of every two adjacent differential signal terminals are respectively provided with a grounding terminal, every two adjacent differential signal terminals and two grounding terminals positioned on two sides of the two differential signal terminals form a terminal module, and the periphery of each terminal module is provided with a metal shielding structure.
2. The ultra-high speed electrical connector with shielding of claim 1, wherein the two differential signal terminals and the two ground terminals of each terminal module are insert molded with an insulating block inserted into the insulating body.
3. The shielded ultra-high speed electrical connector of claim 2, wherein the metallic shield structure extends around each of the terminal modules through both of the ground terminals.
4. The ultra-high speed electrical connector with shielding according to claim 3, wherein each of the terminals comprises a fixed portion, an elastic arm extending upward from the fixed portion, and a solder portion extending downward from the fixed portion to the outside of the bottom of the housing, the upper end of the elastic arm extends upward to form a contact section having a contact portion protruding into the slot, and the metal shielding structure is in contact with the contact section and/or the fixed portion of the ground terminal.
5. The shielded ultra-high speed electrical connector of claim 4, wherein the width of the spring arms of the ground terminals is greater than the width of the spring arms of the differential signal terminals or the width of the fixed portions of the ground terminals is greater than the width of the fixed portions of the differential signal terminals.
6. The ultra-high-speed electrical connector with shielding of claim 4, wherein the metal shielding structure comprises shielding sheets respectively positioned at the inner side and the outer side of the terminal module, and two sides of one shielding sheet penetrate through two grounding terminals of the terminal module and then are combined with two sides of the other shielding sheet to form a surrounding coating structure.
7. The ultra-high-speed electrical connector with shielding of claim 6, wherein the shielding plates on the inner and outer sides of the terminal module are a first shielding plate and a second shielding plate respectively, and the first shielding plate and the second shielding plate are fixed on the insulating block; The two sides of the upper part of the first shielding sheet are outwards bent to form a penetrating sheet I penetrating through the grounding terminal, and the two sides of the lower part of the first shielding sheet are inwards bent to form an elastic supporting sheet; The two sides of the lower part of the second shielding sheet are inwards bent to form a second penetrating sheet penetrating through the grounding terminal, and the upper part of the second shielding sheet is inwards bent to form an elastic pressing sheet; The elastic propping sheets on two sides of the shielding sheet propping the penetrating sheet I penetrating through the grounding terminals on one side of the shielding sheet on the inner side, the elastic propping sheets on two sides of the shielding sheet propping the elastic propping sheets on one side of the shielding sheet on the inner side after penetrating through the two grounding terminals, and the penetrating sheet II on two sides of the shielding sheet contacts with the fixing parts of the grounding terminals.
8. The ultra-high speed electrical connector with shielding of claim 7, wherein the spring arm of the ground terminal has a slot, the first through-tab extends through the slot, the second through-tab extends through the slot and is retained in the slot.
9. The ultra-high speed electrical connector with shielding of claim 6, wherein at least one of the two shielding plates is provided with a wave absorbing ring corresponding to the two differential signal terminals.
10. The ultra-high speed electrical connector with shielding of claim 7, wherein each of the second resilient contact strips extends upwardly to form a spring strip, the spring strip being in contact with an upper end of the contact section of the ground terminal.
11. The ultra-high speed electrical connector with shielding according to claim 7, wherein the insulating block comprises a main board body, two differential signal terminals and two grounding terminals of each terminal module are embedded and fixed in the main board body, a positioning block and side plates positioned at two sides of the positioning block are formed by protruding the inner side of the main board body, positioning grooves are formed in opposite side surfaces of the side plates at two sides, a penetrating piece II of the shielding piece II penetrates through the main board body from the outer side of the main board body to the inner side and stretches into the positioning grooves, and a positioning hole matched with the positioning block is formed in the shielding piece I.
12. The ultra-high-speed electrical connector with shielding according to claim 2, wherein each of the insulating blocks and the two differential signal terminals and the two ground terminals insert-molded with the insulating blocks are positioned in the same terminal slot, and the insulating body is provided with a partition portion at an upper portion in the terminal slot where the two differential signal terminals and the two ground terminals are simultaneously accommodated, the partition portion partitioning the contact sections of the adjacent ground terminals and the differential signal terminals from the contact sections of the adjacent two signal terminals.
13. The shielded ultra-high speed electrical connector of claim 2, wherein the dielectric block is secured to the dielectric body by laser welding.
14. The ultra-high speed electrical connector with shielding of claim 1, wherein the bottom of the housing is provided with a plastic member having a tab extending between each two differential signal terminals.
15. The ultra-high speed electrical connector with shielding of claim 14, wherein said plastic member is coated with a ground shield having contact arms shorting to two ground terminals of each terminal module.

Description

Ultra-high speed electrical connector with shielding Technical Field The invention belongs to the field of connectors, and particularly relates to an ultra-high-speed electric connector with a shield. Background Bus extension connectors (PCIE connectors) with transmission rates from 32Gbps at generation 5 to 64Gbps at generation 6. The upgrade from the 5 th generation to the 6 th generation connector is relatively simple, since the transmission rate is not increased by increasing the operating frequency (the operating frequency is up to 24 GHz), but is increased by changing the NRZ signal to the PAM4 signal. At present, the 7 th generation PCIE transmission rate and operating frequency specification prescribes that the transmission rate is increased to 128Gbps, and the operating frequency is increased to 48GHz at the highest. At such high operating frequencies, the various signal integrity parameters of the connector are critical and the loss and crosstalk requirements are low. The connector design therefore requires a new innovative design to be adopted, with the previous structure being changed according to the performance requirements. Chinese patent No. cn202111470835.X discloses a card edge connector, including insulator, insulator's front end embedding is provided with a plurality of evenly arranged's group B conductive terminal, and insulator rear end embedding is provided with a plurality of evenly arranged's group a conductive terminal, and insulator includes evenly sets up a plurality of group B Pin holes at its inside front side, and a plurality of group a Pin holes have evenly been seted up to insulator's inside rear end, and group a conductive terminal runs through the inboard at corresponding group a Pin hole, and group B conductive terminal runs through the inboard at corresponding group B Pin hole. The inboard of insulator is located and has seted up the draw-in groove between group A Pin hole and the group B Pin hole, and a pair of group B step has been seted up to the front side of insulator's lower extreme, and a pair of group A step has been seted up to the rear side of insulator's lower extreme. The plurality of the group A conductive terminals and the group B conductive terminals can be divided into grounding terminals and signal terminals according to the function, wherein the grounding terminals and the signal terminals are divided into a pair of parts at the left side and the right side, the rest parts are respectively arranged in a pair, the grounding terminals are alternately distributed in pairs, the lower end of the inner side of each grounding terminal is provided with a grounding protruding part, the lower end of the inner side of each signal terminal is provided with a signal protruding part, the length of each signal protruding part is larger than that of each grounding protruding part, the crosstalk among the signal terminals is effectively improved, and the requirements of high-speed signal transmission are met. Every group A conductive terminal all includes group A elastic part, group A horizontal straight portion and group A welding portion, and group A elastic part, group A horizontal straight portion and group A welding portion set gradually from the top down, and every group B conductive terminal all includes group B elastic part, group B horizontal straight portion and group B welding portion, and group B elastic part, group B horizontal straight portion and group B welding portion set gradually from the top down. The outside parcel of the horizontal straight portion of group A has the insulating layer of group A, and the outside parcel of the horizontal straight portion of group B has the insulating layer of group B, and the insulating layer of group A and the insulating layer of group B all adopt Insert Molding's method respectively with the horizontal straight portion of group A and the horizontal straight portion of group B fixed connection to make group A conductive terminal and group A insulating layer and group B conductive terminal and group B insulating layer form an entirety respectively, and the equipment is simple, the structure is firm, with low costs, the yields is high. Although the card edge connector can improve crosstalk between signal terminals, surrounding signal shielding is not performed around every two signal terminals which are a pair, and signal crosstalk still exists between every two signal terminal pairs and adjacent signal terminal pairs, so that stability of signal transmission is affected. Therefore, improvements are needed. Disclosure of Invention The present invention is directed to an ultra-high-speed electrical connector with shielding to solve the above-mentioned problems. In order to achieve the above purpose, the technical scheme used by the invention is as follows: a shielded ultra-high speed electrical connector comprising: The insulation body is provided with a longitudinal slot which is concaved downwards from the top surfac