A high-reliability, high-rate connector and cable assembly

Abstract

This invention discloses a high-reliability, high-speed connector and cable assembly. The connector includes a bent socket, which includes a retainer. The retainer includes a plastic base and a bent shield. Several grounding pins are disposed inside the plastic base, and a set of signal pins is disposed between two adjacent grounding pins. Through slots are provided on both sides of the bent grounding pins. L-shaped ground plates are provided on both sides of the bent shield. A straight plug is also included. In the bent socket, the bent shield, together with the grounding pins, forms a C-shaped shield. In the straight plug, the ground plate, together with the bent plate, forms a C-shaped shield. This provides 360° surround electromagnetic shielding for the signal pins or signal plates, significantly reducing crosstalk between adjacent differential pairs, reducing electromagnetic radiation from the signal, and improving immunity to external electromagnetic interference. This effectively solves the signal distortion problem caused by electromagnetic coupling in high-speed signal transmission.

Description

Technical Field

[0001] This invention belongs to the field of connector technology, and particularly relates to a high-reliability, high-speed connector, and a cable assembly using a high-reliability, high-speed connector. Background Technology

[0002] In the fields of satellite communications and aerospace engineering, with the rapid development of low-Earth orbit communication constellations, high-resolution remote sensing satellites, and deep space exploration missions, satellite platforms are facing increasingly stringent requirements for data transmission rates, signal reliability, and electromagnetic compatibility. Especially in inter-satellite links, high-speed satellite-to-ground communication, and intra-payload data exchange scenarios, signal transmission rates have jumped from the traditional several Gbps to 10 Gbps and above. Stable transmission of large amounts of high-speed differential signals (such as PCIe and Ethernet) has become a core prerequisite for the realization of satellite functions.

[0003] However, the limited internal space of a satellite leads to a highly dense layout of electronic equipment and connectors. Coupled with the complex electromagnetic interference in the space environment (including radiation from onboard equipment, cosmic radiation, and interference from other spacecraft), connectors, as critical nodes in signal transmission, face severe crosstalk problems. Crosstalk is essentially electromagnetic coupling between adjacent differential pairs, causing distortions in the signal waveform such as overshoot, oscillation, and noise superposition. This directly disrupts the "differential voltage difference" characteristic of differential signals. In high-speed transmission scenarios, this distortion is significantly amplified, causing the receiver to be unable to accurately identify the original signal, leading to increased bit error rate, data packet loss, and even link interruption, seriously affecting the reliability of satellite missions. Summary of the Invention

[0004] This invention addresses the problem of crosstalk in connector signal transmission caused by complex electromagnetic interference environments in existing technologies, and proposes the following technical solution:

[0005] A high-reliability, high-speed connector, comprising:

[0006] A bent socket includes two base brackets. Each base bracket includes a plastic base and a bent shield. The plastic base has several grounding pins inside, and a set of signal pins is arranged between two adjacent grounding pins. Both the grounding pins and the signal pins are bent in the middle. The bent grounding pins have through grooves on both sides. The bent shield has L-shaped ground pieces on both sides. The ends of the two L-shaped ground pieces are inserted into the corresponding through grooves. The shield, together with the spring clip and the grounding pins, forms a C-shaped shield around the signal pins to wrap them.

[0007] A straight plug, the straight plug including a head bezel, the number of the head bezels being two, the head bezel including a head plastic, the head plastic having a plurality of grounding plates inside, a set of signal plates being arranged between two adjacent grounding plates, the grounding plates having a bending plate at the position of the signal plates, the grounding plates and the bending plate forming a C-shaped shield at the position of the signal plates to wrap the signal plates;

[0008] After the bent socket and straight plug are connected, the front end of the signal pin contacts the front end of the signal plate, and the front end of the grounding pin contacts the front end of the grounding plate. The two C-type shields on the bent socket and straight plug effectively reduce crosstalk between differential pairs, thereby improving signal integrity and optimizing electromagnetic compatibility.

[0009] As a preferred embodiment of the above technical solution, the L-shaped grounding plate is provided with a spring piece on its surface. When the bent shielding plate is installed, the L-shaped grounding plate carries the spring piece through the corresponding through slot. After the spring piece is deformed and reset, it contacts one side of the through slot, ensuring reliable contact between the shielding plate and the grounding pin after assembly.

[0010] As a preferred embodiment of the above technical solution, a chamfered structure is provided on one side of the through groove. After the shielding sheet is assembled, the spring clip on the L-shaped ground sheet is locked onto the chamfered structure to prevent the L-shaped ground sheet from falling off the grounding pin.

[0011] As a preferred embodiment of the above technical solution, one of the seat members has multiple positioning posts on its surface, and the other seat member has a corresponding positioning hole on its surface. The two seat members are misaligned after being inserted and limited by the positioning posts and positioning holes. The signal pins at the two positions are staggered and not directly opposite each other to reduce crosstalk between the front and rear differential pairs.

[0012] As a preferred embodiment of the above technical solution, both the grounding pin and the signal pin are provided with a fisheye at their rear ends, and the grounding pin and the signal pin are connected to the external termination position through the fisheye position.

[0013] As a preferred embodiment of the above technical solution, the bent socket further includes a socket housing, a socket base, a cover plate, and a fixing plate. The cover plate is fixed to the socket housing with screws to confine the socket base within the socket housing.

[0014] As a preferred embodiment of the above technical solution, the two seat sills are installed inside the seat housing via a seat base. Multiple positioning grooves are provided on both sides of the seat base, and the grounding pin and signal pin at the two positions are located in the corresponding positioning grooves.

[0015] As a preferred embodiment of the above technical solution, the straight plug further includes a head housing, a head base, and a tail cover, wherein the tail cover is fixed to the head housing with screws to restrict the head base within the head housing.

[0016] As a preferred embodiment of the above technical solution, the two head clasps are installed inside the head shell via a head base. Multiple positioning grooves are provided on both sides of the head base, and the grounding piece and signal piece at the two positions are located in the corresponding positioning grooves.

[0017] The cable assembly includes the aforementioned high-reliability, high-speed connector, wherein a cable is connected to the rear end of the straight plug.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. In the bent socket, the bent shielding piece, together with the grounding pin, forms a C-type shield; in the straight plug, the grounding piece, together with the bent piece, forms a C-type shield. This can form a 360° surround electromagnetic shield for the signal pin or signal piece, greatly reducing crosstalk between adjacent differential pairs, reducing electromagnetic radiation of the signal to the outside, and improving the immunity to external electromagnetic interference. It effectively solves the signal distortion problem caused by electromagnetic coupling in high-speed signal transmission, ensuring that the signal has low distortion and low bit error rate during transmission, and improving the quality of signal transmission.

[0020] 2. The spring design on the surface of the L-shaped grounding plate uses a "deformation-reset" mechanism to ensure tight contact between the bent shielding plate and the grounding pin, avoiding shielding failure due to assembly gaps, thus ensuring reliable shielding contact. In addition, the chamfered structure of the through groove cooperates with the spring to effectively prevent the L-shaped grounding plate from falling off the grounding pin, ensuring the stability of the shielding structure during long-term use.

[0021] 3. The grounding pin and signal pin adopt a central bending structure, which, together with the L-shaped grounding plate with the bent shielding plate, achieves a compact integration of "pin layout - shielding wrapping" in a limited space. This not only meets the space adaptation requirements of the bent socket, but also does not sacrifice shielding performance, taking into account both miniaturization and high speed requirements.

[0022] 4. By interlocking the positioning pins and positioning holes of the two seat components, the two sets of signal pins are arranged in an alternating manner, which avoids direct coupling between the front and rear differential pairs from the perspective of spatial layout, and further reduces the cumulative crosstalk in long-distance transmission. Attached Figure Description

[0023] Figure 1 The diagram shown is a schematic representation of the overall structure of the embodiment;

[0024] Figure 2 The diagram shown is an exploded view of the bent socket in the embodiment;

[0025] Figure 3 The diagram shown is an exploded view of the straight plug in the embodiment;

[0026] Figure 4 The diagram shown is a schematic representation of the various parts of the seat member in the embodiment;

[0027] Figure 5 The image shown is a bottom view of the shielding sheet in the embodiment;

[0028] Figure 6 The image shown is a right view of the grounding pin in the embodiment;

[0029] Figure 7 The diagram shown is a schematic representation of the various parts of the headrest component in the embodiment;

[0030] Figure 8 The diagram shown illustrates the installation location of the grounding plate in the embodiment.

[0031] In the diagram: 11. Base shell; 12. Base; 121. Positioning groove one; 13. Base sill; 131. Signal pin; 132. Grounding pin; 1321. Through groove; 1322. Chamfered structure; 133. Base plastic; 134. Shielding plate; 1341. L-shaped grounding plate; 1342. Spring piece; 1331. Positioning hole; 1332. Positioning post; 135. Fisheye; 14. Cover plate; 15. Fixing plate; 21. Head shell; 22. Head base; 221. Positioning groove two; 23. Head sill; 231. Grounding plate; 2311. Bending piece; 232. Signal piece; 233. Head plastic; 24. Tail cover. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings.

[0033] Figures 1-8 A high-reliability, high-speed connector includes:

[0034] A bent socket includes two seat brackets 13. Each seat bracket 13 includes a plastic base 133 and a bent shielding sheet 134. The plastic base 133 has several grounding pins 132 inside. A set of signal pins 131 is arranged between two adjacent grounding pins 132. The middle of both the grounding pins 132 and the signal pins 131 are bent. Both sides of the bent grounding pins 132 are provided with through grooves 1321. Both sides of the bent shielding sheet 134 are provided with L-shaped ground pieces 1341. The ends of the two L-shaped ground pieces 1341 are inserted into the corresponding through grooves 1321. The shielding sheet 134, together with the spring piece 1342 and the grounding pins 132, forms a C-shaped shield around the signal pins 131 to wrap the signal pins 131.

[0035] A straight plug, the straight plug including a head bezel 23, the number of the head bezel 23 being two, the head bezel 23 including a head plastic 233, the head plastic 233 having a plurality of grounding pieces 231 disposed inside, a set of signal pieces 232 disposed between two adjacent grounding pieces 231, the grounding pieces 231 having a bent piece 2311 disposed at the position of the signal pieces 232, the grounding pieces 231 and the bent piece 2311 forming a C-shaped shield at the position of the signal pieces 232 to wrap the signal pieces 232;

[0036] After the bent socket and straight plug are connected, the front end of the signal pin 131 and the front end of the signal piece 232, and the front end of the grounding pin 132 and the front end of the grounding piece 231 make contact. The two C-type shields on the bent socket and straight plug effectively reduce crosstalk between differential pairs, thereby improving signal integrity and optimizing electromagnetic compatibility.

[0037] In the bent socket, the bent shielding plate 134, together with the grounding pin 132, forms a C-shaped shield. In the straight plug, the grounding plate 231, together with the bent plate 2311, forms a C-shaped shield. This can form a 360° surround electromagnetic shield for the signal pin 131 or the signal plate 232, which can significantly reduce crosstalk between adjacent differential pairs, reduce electromagnetic radiation of the signal to the outside, and improve the immunity to external electromagnetic interference. It effectively solves the signal distortion problem caused by electromagnetic coupling in high-speed signal transmission, ensuring that the signal has low distortion and low bit error rate during transmission, thus improving the quality of signal transmission. Furthermore, the grounding pin 132 and the signal pin 131 adopt a middle bending structure, together with the L-shaped ground plate 1341 of the bent shielding plate 134, to achieve a compact integration of "pin layout - shielding wrapping" in a limited space. This not only meets the space adaptation requirements of the bent socket, but also does not sacrifice shielding performance, taking into account both miniaturization and high-speed requirements.

[0038] Figures 2-6 In the process, the L-shaped grounding plate 1341 is provided with a spring piece 1342. When the bent shielding plate 134 is installed, the L-shaped grounding plate 1341 carries the spring piece 1342 through the corresponding through groove 1321. After the spring piece 1342 is deformed and reset, it contacts one side of the through groove 1321, ensuring reliable contact between the shielding plate 134 and the grounding pin 132 after assembly.

[0039] A chamfered structure 1322 is provided on one side of the through groove 1321. After the shielding sheet 134 is assembled, the spring piece 1342 on the L-shaped ground sheet 1341 is stuck on the chamfered structure 1322 to prevent the L-shaped ground sheet 1341 from falling off the grounding pin 132.

[0040] The spring piece 1342 on the surface of the L-shaped grounding plate 1341 is designed with a "deformation-reset" mechanism to ensure close contact between the bent shielding plate 134 and the grounding pin 132, avoiding shielding failure due to assembly gaps and ensuring reliable shielding contact. In addition, the chamfered structure 1322 of the through groove 1321 cooperates with the spring piece 1342 to effectively prevent the L-shaped grounding plate 1341 from falling off the grounding pin 132, ensuring the stability of the shielding structure during long-term use.

[0041] Figure 4 In the process, one of the seat members 13 has a plurality of positioning posts 1332 on its surface, and the other seat member 13 has a corresponding positioning hole 1331 on its surface. After the two seat members 13 are inserted and limited by the positioning posts 1332 and the positioning hole 1331, they are misaligned. The signal pins 131 at the two positions are staggered and not directly opposite each other to reduce crosstalk between the front and rear differential pairs.

[0042] By staggering the positioning pins 1332 and positioning holes 1331 of the two seat members 13, the two sets of signal pins 131 are arranged in an interleaved manner, which avoids direct coupling between the front and rear differential pairs from the perspective of spatial layout, and further reduces the cumulative crosstalk in long-distance transmission.

[0043] Figure 2 , Figure 4 and Figure 6 In the process, the rear ends of the grounding pin 132 and the signal pin 131 are both provided with fisheye 135, and the grounding pin 132 and the signal pin 131 are connected to the external termination position through the position of the fisheye 135.

[0044] The fisheye 135 structure design at the rear end of the grounding pin 132 and the signal pin 131 is compatible with a variety of external termination methods, which improves the connector's adaptability. Furthermore, by changing the size of the fisheye 135 at the ends of the signal pin 131 and the grounding pin 132, the impedance at the mating position can be adjusted, thereby further optimizing the connector.

[0045] Figure 1 and Figure 2 The bent socket also includes a socket housing 11, a base 12, a cover plate 14, and a fixing plate 15. The cover plate 14 is fixed to the socket housing 11 by screws to restrict the base 12 within the socket housing 11.

[0046] The two seat sills 13 are installed inside the seat housing 11 via the seat base 12. Multiple positioning grooves 121 are provided on both sides of the seat base 12. The grounding pin 132 and the signal pin 131 at the two positions are located in the corresponding positioning grooves 121.

[0047] Figure 1 and Figure 3The straight plug also includes a head housing 21, a head base 22, and a tail cover 24. The tail cover 24 is fixed to the head housing 21 by screws to restrict the head base 22 within the seat housing 11.

[0048] The two head sill pieces 23 are installed inside the head shell 21 via the head base 22. Multiple positioning grooves 221 are provided on both sides of the head base 22. The grounding piece 231 and the signal piece 232 at the two positions are located in the corresponding positioning grooves 221.

[0049] Figures 1-3 The cable assembly includes a high-reliability, high-speed connector, wherein a cable is connected to the rear end of the straight plug.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A high-reliability, high-rate connector, characterized by, include: A bent socket, the bent socket including a seat bracket (13), the number of the seat brackets (13) is two, the seat brackets (13) include a seat plastic (133) and a bent shielding plate (134), the seat plastic (133) is provided with several grounding pins (132) inside, a set of signal pins (131) is provided between two adjacent grounding pins (132), the middle of the grounding pins (132) and the signal pins (131) are both bent, the grounding pins (132) are provided with through grooves (1321) on both sides of the bent shape, the bent shielding plate (134) is provided with L-shaped ground pieces (1341) on both sides, the ends of the two L-shaped ground pieces (1341) are inserted into the corresponding through grooves (1321), the shielding plate (134) cooperates with the spring piece (1342) and the grounding pins (132) to form a C-shaped shield around the signal pins (131) to wrap the signal pins (131); A straight plug, the straight plug including a head bezel (23), the number of the head bezel (23) is two, the head bezel (23) includes a head plastic (233), the head plastic (233) is provided with a plurality of grounding pieces (231) inside, a set of signal pieces (232) is provided between two adjacent grounding pieces (231), the grounding pieces (231) are provided with a bent piece (2311) at the position of the signal piece (232), the grounding pieces (231) and the bent piece (2311) form a C-shaped shield at the position of the signal piece (232) to wrap the signal piece (232); After the bent socket and straight plug are connected, the front end of the signal pin (131) and the front end of the signal piece (232) make contact, and the front end of the grounding pin (132) and the front end of the grounding piece (231) make contact. The two C-type shields on the bent socket and straight plug effectively reduce crosstalk between differential pairs, so as to improve signal integrity and optimize electromagnetic compatibility. The L-shaped grounding plate (1341) is provided with a spring piece (1342). When the bent shielding plate (134) is installed, the L-shaped grounding plate (1341) carries the spring piece (1342) through the corresponding through slot (1321). After the spring piece (1342) is deformed and reset, it contacts one side of the through slot (1321), ensuring reliable contact between the shielding plate (134) and the grounding pin (132) after assembly. A chamfered structure (1322) is provided on one side of the through groove (1321). After the shielding plate (134) is assembled, the spring piece (1342) on the L-shaped ground piece (1341) is stuck on the chamfered structure (1322) to prevent the L-shaped ground piece (1341) from falling off the grounding pin (132).

2. The high reliability, high rate connector of claim 1, wherein, One of the seat members (13) has multiple positioning posts (1332) on its surface, and the other seat member (13) has a corresponding positioning hole (1331) on its surface. The two seat members (13) are connected and limited by the positioning posts (1332) and the positioning hole (1331) to make them misaligned. The signal pins (131) at the two positions are staggered and not directly opposite each other to reduce crosstalk between the front and rear differential pairs.

3. The high reliability, high rate connector of claim 1, wherein, The grounding pin (132) and the signal pin (131) are both provided with a fisheye (135) at their rear ends. The grounding pin (132) and the signal pin (131) are connected to the external termination position through the fisheye (135) position.

4. The high reliability, high speed connector of claim 1, wherein, The bent socket also includes a socket housing (11), a base (12), a cover plate (14), and a fixing plate (15). The cover plate (14) is fixed to the socket housing (11) by screws to restrict the base (12) within the socket housing (11).

5. A high reliability, high rate connector as claimed in claim 4, wherein, The two seat sills (13) are installed inside the seat shell (11) via the seat base (12). Multiple positioning grooves (121) are provided on both sides of the seat base (12). The grounding pin (132) and signal pin (131) at the two positions are located in the corresponding positioning grooves (121).

6. The high reliability, high speed connector of claim 1, wherein, The straight plug also includes a head housing (21), a head base (22), and a tail cover (24), wherein the tail cover (24) is fixed to the head housing (21) by screws to restrict the head base (22) within the seat housing (11).

7. The high reliability, high speed connector of claim 1, wherein, The two head sill pieces (23) are installed inside the head shell (21) via the head base (22). Multiple positioning grooves (221) are provided on both sides of the head base (22). The grounding piece (231) and signal piece (232) at the two positions are located in the corresponding positioning grooves (221).

8. A cable assembly, characterized by The invention includes a high-reliability, high-speed connector as described in any one of claims 1-7, wherein a cable is connected to the rear end of the straight plug.

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