High-speed electric connector with hole-digging shielding sheet
By employing a perforated shielding design in high-speed electrical connectors, impedance matching and electromagnetic shielding are optimized, solving the problems of impedance reduction and crosstalk increase caused by terminal contact, and achieving low-loss and low-interference transmission of high-speed signals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-05
- Publication Date
- 2026-03-31
AI Technical Summary
High-speed electrical connectors use multi-point elastic contacts at the mating parts, which leads to reduced conductor inductance, reduced impedance, and increased distributed capacitance, affecting the integrity of signal transmission.
The design employs a perforated shielding sheet, including a mating structure with perforations on the straight male shielding sheet and bent female shielding sheet. Combined with air filling and multi-layer shielding cavities, impedance matching and electromagnetic shielding are optimized. The L-shaped and U-shaped structures of the straight male shielding sheet enhance mechanical strength and contact stability.
Precise impedance matching was achieved, distributed capacitance was reduced, crosstalk and electromagnetic interference were suppressed, low-loss and low-interference transmission of high-speed signals was ensured, and the integrity and reliability of signal transmission were improved.
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Figure CN121769591A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of high-speed electrical connector technology, specifically to a high-speed electrical connector with a perforated shielding sheet. Background Technology
[0002] High-speed electrical connectors are precision interconnect devices designed specifically for high-frequency, high-bandwidth, and low-distortion signal transmission between electronic devices. The signal transmission of high-speed electrical connectors is based on differential signaling, which is different from traditional single-ended signal transmission. In differential transmission, a pair of signal lines transmit signals with equal amplitude and opposite polarity. The receiving end reconstructs the original information by calculating the difference between the two signals. This mechanism can significantly suppress common-mode noise, improve anti-interference capability, and facilitate the implementation of standard differential impedance matching.
[0003] In current technologies, when high-speed electrical connectors transmit signals, signal integrity needs to be considered. Signal integrity indicators include loss, crosstalk, impedance, and other indicators. The impedance indicator is the result of the combined effect of structural characteristics, electromagnetic parameter changes, and signal integrity design optimization. In practical applications, the terminal contacts at the mating parts of high-speed electrical connectors are not ideal surface contacts, but rather multi-point elastic contacts. However, the mating force increases the pressure at the terminal contact points, which indirectly increases the effective conductive cross-sectional area of the conductor. Moreover, the structure of the terminal contact section is usually designed to be more robust, which reduces the inductance of the conductor itself, resulting in a decrease in impedance. Furthermore, during mating, the elastic terminals are squeezed and tightly fitted, making the terminal spacing at the mating parts much smaller than that in the non-contact area, which increases the distributed capacitance and further exacerbates the impedance reduction. Therefore, a high-speed electrical connector with a perforated shield is proposed to solve the above problems. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a high-speed electrical connector with a perforated shielding sheet. This design reduces the capacitive impact on mating areas and solves the problem that the terminal contacts at the mating areas of high-speed electrical connectors are not ideal surface contacts but rather multi-point elastic contacts. However, the mating force increases the pressure at the terminal contact points, which indirectly increases the effective conductive cross-sectional area of the conductor. Furthermore, the structure of the terminal contact section is usually designed to be more robust, which reduces the inductance of the conductor itself, resulting in a decrease in impedance. During mating, the elastic terminals are squeezed and tightly fitted, making the terminal spacing at the mating area much smaller than that in the non-contact area, leading to an increase in distributed capacitance and exacerbating the impedance reduction problem.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-speed electrical connector with a perforated shielding sheet, comprising a bent socket disposed on the high-speed electrical connector, wherein a straight plug is disposed on the bent socket; The bent socket includes a substrate assembly, a bent female base is provided on the side of the substrate assembly near the straight plug, a protective sleeve is provided on the substrate assembly, and a buckle is provided on the substrate assembly; The straight plug includes a straight male base, inside which are arranged several pairs of pins and several straight male shielding plates, and the several pairs of pins and several straight male shielding plates are arranged in a rectangular array. The substrate assembly includes several bent female substrates, all of which are mounted on a sheath. Each of the several bent female substrates has a terminal group with one end extending through to the outside. Each of the several bent female substrates is provided with a bent female shielding sheet for electromagnetic shielding.
[0006] Furthermore, the straight male shielding sheet has two holes, and the straight male shielding sheet is divided into upper and lower sections. The upper section has an L-shaped cross-section and a step feature that is narrower at the top and wider at the bottom. The shorter side is no more than one-quarter the length of the longer side. The lower section has a U-shaped cross-section.
[0007] Furthermore, the width of the solid portion between the two holes on the straight male shielding sheet is not less than the width of the contact point of the curved female shielding sheet, and the two holes are symmetrically distributed on the straight male shielding sheet as the contact points of the curved female shielding sheet.
[0008] Furthermore, the bent nut substrate is provided with four positioning posts, and the bent nut shielding sheet is provided with four mating holes, with one end of the positioning post passing through the corresponding mating hole, and the mating hole and the positioning post being interference fit.
[0009] Furthermore, the terminal group includes three pairs of differential signal pairs, and the three pairs of differential signal pairs and the corresponding bent female substrate are an integrated structure after injection molding. The bent female substrate has several elongated regions extending to the surface of the terminal group, and air is filled between the differential signal pairs in two elongated regions.
[0010] Furthermore, the curved base is provided with several shielding plate receiving slots, and each shielding plate receiving slot is embedded with an independent small shielding plate.
[0011] Furthermore, the bent female base is provided with several pairs of signal pin receiving slots and several straight male receiving slots. The several pairs of signal pin receiving slots, the several straight male receiving slots and the several shielding plate receiving slots are all distributed in a rectangular array on the bent female base. Each pair of signal pin receiving slots has a shielding plate receiving slot in the middle and a straight male receiving slot around the periphery of each pair of signal pin receiving slots.
[0012] Furthermore, both sides of the independent small shielding sheet are provided with anti-detachment barbs, and the anti-detachment barbs and the independent small shielding sheet are an integral structure, and the shielding sheet receiving groove is a rectangular blind hole.
[0013] Furthermore, one end of the straight male shielding plate passes through the straight male receiving groove on the bent female base, and the contact of the bent female shielding plate is in contact with the straight male shielding plate. One end of the pin passes through the signal pin receiving groove, and the differential signal in the terminal group is in contact with the end of the pin.
[0014] Compared with the prior art, the present invention provides a high-speed electrical connector with a perforated shielding sheet, which has the following advantages: 1. This high-speed electrical connector with a perforated shielding plate reduces the effective coupling area between the shielding plate and the terminal group by using two symmetrical perforations on the straight male shielding plate, thereby reducing distributed capacitance. The long strip-shaped area on the bent female base plate that extends to the surface of the terminal group is filled with air. By utilizing the low dielectric constant of air, the equivalent dielectric constant of the differential signal to the surrounding area is further reduced, which helps to optimize capacitive parameters. The two, together with the stable inductance path formed by the U-shaped structure at the bottom of the straight male shielding plate, work together to ultimately achieve precise impedance matching and solve the problem of impedance reduction at the mating parts. 2. This high-speed electrical connector with perforated shielding plates has an independent small shielding plate embedded in the shielding plate receiving groove of the bent female base. Each pair of signal pin receiving grooves has a shielding plate receiving groove in the middle and a straight male receiving groove on the periphery. The three are distributed in a rectangular array. The straight male shielding plate passes through the straight male receiving groove and makes close contact with the bent female shielding plate contact. Combined with the fixed structure of the bent female shielding plate and the bent female base, a multi-layer continuous shielding cavity is formed around the terminal group and the pins to suppress near-far crosstalk and external electromagnetic interference in all directions. 3. This high-speed electrical connector with a perforated shield features an L-shaped stepped structure on the upper section of the male shield, facilitating precise insertion into the male receiving slot. The lower U-shaped structure balances strength and shielding effectiveness. After the pin passes through the signal pin receiving slot, it reliably contacts the differential signal terminal of the terminal group. The integrated injection molding structure of the terminal group and the bent female substrate reduces contact resistance and signal attenuation, achieving low-loss and precise adaptive transmission of high-speed signals. 4. In this high-speed electrical connector with a perforated shield, the positioning post of the bent female base plate is interference-fitted with the mating hole of the bent female shield to firmly fix the bent female shield. The integrated anti-detachment barbs on both sides of the independent small shield engage with the shield receiving groove of the rectangular blind hole structure to prevent the shield from falling off. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 Exploded view; Figure 3 This is a schematic diagram of the bent female base, pin, and straight male shielding sheet of the present invention; Figure 4 This is a schematic diagram of the curved female base and the straight male receiving groove of the present invention; Figure 5 This is a schematic diagram of the bent base and independent small shielding sheet of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention. Figure 5 Exploded view; Figure 7 This is a schematic diagram of the independent small shielding sheet structure of the present invention; Figure 8 This is a schematic diagram of the structural sheath and substrate assembly of the present invention; Figure 9 This is a schematic diagram of the structure of the present invention. Figure 8 Another perspective illustration; Figure 10 This is a schematic diagram of the substrate assembly of the present invention; Figure 11 This is a schematic diagram of the structure of the present invention. Figure 10 Exploded view; Figure 12 This is a schematic diagram of the curved female shielding sheet and the straight male shielding sheet of the present invention.
[0016] In the diagram: 1. Bent socket; 11. Substrate assembly; 111. Bent female substrate; 1111. Positioning post; 1112. Long strip area; 112. Terminal group; 113. Bent female shield; 1131. Mating hole; 12. Bent female base; 121. Shielding plate receiving slot; 122. Signal pin receiving slot; 123. Straight male receiving slot; 124. Independent small shield; 1241. Anti-detachment barb; 13. Sheath; 14. Clip; 2. Straight plug; 21. Straight male base; 22. Pin; 23. Straight male shield; 231. Hole. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Example 1: Please refer to Figure 1-12 In this embodiment, a high-speed electrical connector with a perforated shielding sheet includes a bent socket 1 disposed on the high-speed electrical connector, and a straight plug 2 disposed on the bent socket 1.
[0019] Example 2: Please refer to Figure 1-12Based on Embodiment 1, a high-speed electrical connector with a perforated shielding sheet is provided. The bent socket 1 includes a substrate assembly 11, a bent female base 12 is provided on the side of the substrate assembly 11 near the straight plug 2, a sheath 13 is provided on the substrate assembly 11, and a snap 14 is provided on the substrate assembly 11. The straight plug 2 includes a straight male base 21, inside which are arranged several pairs of pins 22 and several straight male shielding plates 23, and the several pairs of pins 22 and the several straight male shielding plates 23 are arranged in a rectangular array. The substrate assembly 11 includes several bent female substrates 111, and the several bent female substrates 111 are all mounted on the sheath 13. Each of the several bent female substrates 111 has a terminal group 112 with one end penetrating through and extending to the outside. Each of the several bent female substrates 111 has a bent female shielding sheet 113 for electromagnetic shielding.
[0020] It should be noted that the straight plug 2 and the right-angle socket 1 are interlocked. The two holes 231 on the straight male shield 23 are symmetrically distributed with the contacts of the right-angle female shield 113, and the width of the solid part between the holes 231 is not less than the width of the contacts of the right-angle female shield 113. The terminal group 112 is set inside the right-angle female base 111, and the right-angle female shield 113 is installed on the right-angle female base 111. The straight male shield 23 and the pin 22 are arranged in a rectangular array inside the straight male base 21. The design of the holes 231 of the straight male shield 23 reduces the capacitance of the interlocking area. With the coordinated array layout of the shield and the terminals, the impedance parameters of the interlocking parts are adjusted to the standard range to ensure the integrity of the transmission of high-speed differential signals.
[0021] Among them, the straight male shielding plate 23 has two holes 231. The straight male shielding plate 23 is divided into upper and lower sections. The upper section has an L-shaped cross-section and a step feature that is narrower at the top and wider at the bottom. The shorter side is no more than one-quarter of the length of the longer side. The lower section has a U-shaped cross-section.
[0022] It should be noted that the upper L-shaped stepped structure facilitates precise insertion with the straight male receiving slot 123, while the lower U-shaped structure enhances the mechanical strength and deformation resistance of the shielding sheet. While reducing capacitance by creating the hole 231, it also prevents the shielding sheet from failing due to structural weakening, thus balancing impedance optimization and mechanical reliability. This solves the problem that after the straight male shielding sheet 23 has a hole 231, its mechanical strength decreases, making it prone to deformation or breakage during insertion. At the same time, traditional shielding sheet structures cannot simultaneously address both capacitance suppression and structural strength.
[0023] In addition, the width of the solid portion between the two holes 231 on the straight male shield 23 is not less than the width of the contact of the bent female shield 113, and the two holes 231 are symmetrically distributed on the straight male shield 23 as the contact of the bent female shield 113.
[0024] It should be noted that the symmetrically distributed perforations 231 ensure the uniformity of capacitive suppression and improve the consistency of impedance matching. The width design of the solid portion between the perforations 231 ensures the effective contact area between the contact of the bent female shield 113 and the straight male shield 23, ensuring stable conduction of the shielding path, enhancing the electromagnetic shielding effect, and avoiding the problem of insufficient contact area with the contact of the bent female shield 113 due to unreasonable position of the perforations 231 of the straight male shield 23, resulting in poor conduction of the shielding path. At the same time, it avoids the problem of uneven distribution of perforations 231 and unstable capacitive suppression effect.
[0025] Furthermore, the bent female substrate 111 is provided with four positioning posts 1111, and the bent female shielding sheet 113 is provided with four mating holes 1131, and one end of the positioning post 1111 passes through the corresponding mating hole 1131, and the mating hole 1131 and the positioning post 1111 are interference fit.
[0026] It should be noted that the interference fit connection method firmly fixes the bent female shield 113 to the bent female base plate 111, ensuring the continuity and stability of the shielding structure, avoiding the decrease in anti-interference ability caused by the displacement of the shield, maintaining the signal-to-noise ratio of high-speed signal transmission, and solving the problem that the bent female shield 113 is prone to loosening and displacement after installation, resulting in discontinuity of the shielding structure, which leads to increased electromagnetic interference and signal crosstalk.
[0027] Finally, the terminal group 112 includes three pairs of differential signal pairs, and the three pairs of differential signal pairs and the corresponding bent female substrate 111 are an integrated structure after injection molding. The bent female substrate 111 has several elongated regions 1112 that extend through to the surface of the terminal group 112, and air is filled between the differential signal pairs in two elongated regions 1112.
[0028] It should be noted that the injection-molded integrated structure enhances the connection strength between the terminal group 112 and the bent female substrate 111, preventing the terminals from becoming loose or falling off. The elongated area 1112 is filled with air, which utilizes the low dielectric constant of air to reduce the equivalent dielectric constant of the differential signal to the surrounding area, further reducing the distributed capacitance and assisting in optimizing the characteristic impedance. This solves the problems of high dielectric constant of the insulating material in the injection-molded structure, which leads to large distributed capacitance around the terminal group 112, and insufficient connection strength between the terminals and the substrate, making it easy for the terminals to fall off.
[0029] Example 3: Please refer to Figure 1-12 Based on Embodiment 2, a high-speed electrical connector with a perforated shielding sheet is provided. The bent female base 12 has several shielding sheet receiving slots 121, and each shielding sheet receiving slot 121 has an independent small shielding sheet 124 embedded inside. The bent female base 12 has several pairs of signal pin receiving slots 122 and several straight male receiving slots 123. The several pairs of signal pin receiving slots 122, the several straight male receiving slots 123 and the several shielding plate receiving slots 121 are all distributed in a rectangular array on the bent female base 12. Each pair of signal pin receiving slots 122 has a shielding plate receiving slot 121 in the middle and a straight male receiving slot 123 around the periphery of each pair of signal pin receiving slots 122.
[0030] It should be noted that the independent small shielding sheet 124 forms an independent shielding barrier for the differential signal pair within the shielding sheet receiving slot 121, blocking electromagnetic coupling between adjacent signal channels, significantly reducing near-end crosstalk and far-end crosstalk, and improving the transmission quality of high-speed signals. The rectangular array layout ensures the positioning accuracy when the pin 22 and the straight male shield 23 are inserted, avoiding poor contact caused by misalignment. The shielding groove layout in the middle and outer periphery of each pair of signal pin receiving slots 122 achieves all-round shielding of differential signal pairs, further improving crosstalk suppression capability and ensuring the consistency of multi-channel signal transmission.
[0031] The independent small shielding plate 124 has anti-detachment barbs 1241 on both sides, and the anti-detachment barbs 1241 and the independent small shielding plate 124 are an integral structure. The shielding plate receiving groove 121 is a rectangular blind hole.
[0032] It should be noted that the integrated anti-detachment barb 1241 structure enhances the connection tightness between the independent small shielding plate 124 and the shielding plate receiving groove 121, preventing the shielding plate from falling off and ensuring the stability of the shielding effect during long-term use.
[0033] In addition, one end of the straight male shield 23 passes through the straight male receiving groove 123 on the bent female base 12, and the contact of the bent female shield 113 contacts the straight male shield 23. One end of the pin 22 passes through the signal pin receiving groove 122, and the differential signal in the terminal group 112 contacts the end of the pin 22.
[0034] It should be noted that the close contact between the straight male shielding plate 23 and the bent female shielding plate 113 forms a continuous electromagnetic shielding path, ensuring the shielding effect. The reliable contact between the pin 22 and the terminal group 112 reduces the contact resistance of signal transmission, reduces signal attenuation, and ultimately achieves low-loss and low-interference transmission of high-speed signals. This avoids the problems of poor contact conductivity leading to shielding failure and high contact resistance of the signal transmission path, which can cause aggravated signal attenuation.
[0035] The working principle of the above embodiments is as follows: This high-speed electrical connector with a perforated shield aligns the straight male base 21 of the straight plug 2 with the bent female base 12 of the bent socket 1, ensuring that the straight male shield 23 corresponds one-to-one with the straight male receiving groove 123 on the bent female base 12, and the pin 22 corresponds one-to-one with the signal pin receiving groove 122. The straight male shield 23 and the straight male receiving groove 123 are precisely matched. At the same time, foreign objects are cleaned from the contact area between the bent female shield 113 contact and the straight male shield 23 to ensure contact conductivity. Smoothly push the straight plug 2 towards the bent socket 1, driving one end of the straight male shield 23 through the straight male receiving groove 123 until the contact of the bent female shield 113 is in close contact with the straight male shield 23, forming a continuous shielding path. Simultaneously, the pin 22 passes through the signal pin receiving slot 122 and makes electrical contact with the differential signal terminal in the terminal group 112, thus constructing a high-speed signal transmission path; The differential signal originates from the three pairs of differential signal pairs in terminal group 112 and is transmitted at high frequency and high bandwidth via pin 22; In this process, the symmetrical perforation 231 of the straight male shielding sheet 23 reduces the capacitance of the mating area, and the air filling of the long strip area 1112 of the bent female substrate 111 reduces the dielectric constant. The two work together to regulate the distributed capacitance of the mating part to a reasonable range. Combined with the stable inductance parameters of the shielding structure, the characteristic impedance is accurately matched. Meanwhile, the multi-layer shielding cavity formed by the independent small shielding plate 124, the bent female shielding plate 113 and the straight male shielding plate 23 blocks crosstalk between adjacent channels and external electromagnetic interference, ensuring low-distortion signal transmission. The interference fit structure between the bent female shielding plate 113 and the bent female base plate 111 prevents the shielding plate from shifting. The anti-detachment barbs 1241 of the independent small shielding sheet 124 and the locking structure of the shielding sheet receiving groove 121 prevent the shielding sheet from falling off; The segmented structure of the male shield 23 resists mating stress and vibration impact, ensuring that the impedance parameters and shielding effect of the connector remain stable during long-term use.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-speed electrical connector with a perforated shielding sheet, comprising a bent socket (1) disposed on the high-speed electrical connector, characterized in that: The bent socket (1) is provided with a straight plug (2); The bent socket (1) includes a substrate assembly (11), a bent female base (12) is provided on the side of the substrate assembly (11) near the straight plug (2), a sheath (13) is provided on the substrate assembly (11), and a buckle (14) is provided on the substrate assembly (11). The straight plug (2) includes a straight male base (21), the straight male base (21) is provided with a number of pairs of pins (22), the straight male base (21) is provided with a number of straight male shielding plates (23), and the number of pairs of pins (22) and the number of straight male shielding plates (23) are arranged in a rectangular array. The substrate assembly (11) includes several bent female substrates (111), and the several bent female substrates (111) are all mounted on the sheath (13). Each of the several bent female substrates (111) has a terminal group (112) with one end penetrating through and extending to the outside. Each of the several bent female substrates (111) has a bent female shielding sheet (113) for electromagnetic shielding.
2. A high-speed electrical connector with a perforated shielding sheet according to claim 1, characterized in that: The straight male shielding plate (23) has two holes (231). The straight male shielding plate (23) is divided into upper and lower sections. The upper section has an L-shaped cross-section and a step feature that is narrow at the top and wide at the bottom. The shorter side is no more than one-quarter of the length of the longer side. The lower section has a U-shaped cross-section.
3. A high-speed electrical connector with a perforated shielding sheet according to claim 2, characterized in that: The width of the solid portion between the two holes (231) on the straight male shield (23) is not less than the width of the contact of the curved female shield (113), and the two holes (231) are symmetrically distributed on the straight male shield (23) as the contact of the curved female shield (113).
4. A high-speed electrical connector with a perforated shielding sheet according to claim 1, characterized in that: The bent female substrate (111) is provided with four positioning posts (1111), and the bent female shield (113) is provided with four mating holes (1131). One end of the positioning post (1111) passes through the corresponding mating hole (1131), and the mating hole (1131) and the positioning post (1111) are interference fit.
5. A high-speed electrical connector with a perforated shielding sheet according to claim 1, characterized in that: The terminal group (112) includes three pairs of differential signal pairs, and the three pairs of differential signal pairs and the corresponding bent mother substrate (111) are an integrated structure after injection molding. The bent mother substrate (111) has several elongated regions (1112) that extend to the surface of the terminal group (112), and air is filled between the differential signal pairs in two of the elongated regions (1112).
6. A high-speed electrical connector with a perforated shielding sheet according to claim 1, characterized in that: The bent base (12) has several shielding plate receiving slots (121), and each shielding plate receiving slot (121) has an independent small shielding plate (124) embedded inside.
7. A high-speed electrical connector with a perforated shielding sheet according to claim 6, characterized in that: The bent female base (12) is provided with a number of pairs of signal needle receiving slots (122) and a number of straight male receiving slots (123). The number of pairs of signal needle receiving slots (122), the number of straight male receiving slots (123) and the number of shielding plate receiving slots (121) are all arranged in a rectangular array on the bent female base (12). Each pair of signal needle receiving slots (122) has a shielding plate receiving slot (121) in the middle and a straight male receiving slot (123) on the periphery of each pair of signal needle receiving slots (122).
8. A high-speed electrical connector with a perforated shielding sheet according to claim 6, characterized in that: Both sides of the independent small shielding sheet (124) are provided with anti-detachment barbs (1241), and the anti-detachment barbs (1241) and the independent small shielding sheet (124) are an integral structure. The shielding sheet receiving groove (121) is a rectangular blind hole.
9. A high-speed electrical connector with a perforated shielding sheet according to claim 5, characterized in that: One end of the straight male shield (23) passes through the straight male receiving groove (123) on the bent female base (12), and the contact of the bent female shield (113) is in contact with the straight male shield (23). One end of the pin (22) passes through the signal pin receiving groove (122), and the differential signal in the terminal group (112) is in contact with the end of the pin (22).