Anti-interference optical port high-speed connector provided with multiple groups of common ground sheets

Abstract

The utility model discloses an anti-interference optical port high-speed connector provided with multiple groups of common ground pieces, which comprises a connector shell and a terminal module, and is characterized in that the terminal module comprises a first terminal group, and the first terminal group is composed of a first row of terminals and a first plastic bracket molded with the first row of terminals; the second terminal group is composed of a second row of terminals and a second plastic bracket which is molded with the second row of terminals; the third terminal group is composed of a third row of terminals and a third plastic bracket which is molded with the third row of terminals; and the fourth terminal group is composed of a fourth row of terminals and a fourth plastic bracket molded with the fourth row of terminals in a molding manner. Wherein each of the first row of terminals, the second row of terminals, the third row of terminals and the fourth row of terminals comprises a plurality of grounding terminals, and each of the first plastic support, the second plastic support, the third plastic support and the fourth plastic support is at least provided with a common ground piece connected with the grounding terminals of the corresponding row of terminals.

Description

Technical Field

[0001] The utility model relates to the technical field of optical port high-speed connectors, in particular to an anti-interference optical port high-speed connector provided with a plurality of groups of common ground sheets. Background Art

[0002] QSFP, the full name of Quad Small Form-factor Pluggable, is a small pluggable optical module. Currently, the QSFP28 (19*2=38pins) optical module has four electrical channels, each channel runs at a rate of 10Gbps or 25Gbps, supporting 40G and 100G Ethernet applications. The QSFP-DD (19*4=76pins) electrical connector increases the number of channels to eight, and uses NRZ modulation to make each channel run at a rate of 25Gbps or PAM4 modulation to make each channel run at a rate of 50Gbps, thus supporting 200Gbps or 400Gbps. The main uses are: switches, routers, host adapter buses, enterprise storage, high-density, high-speed I / O, multi-channel interconnection, etc. This solution makes further improvements on the existing QSFP-DD connector to further improve the operating rate, increase the high-speed signal transmission link to sixteen pairs, and increase the number of terminals to 35pins / group*4=140pins. The operating rate of each channel can reach 25Gbps through NRZ modulation or 50Gbps through PAM4 modulation, thus supporting 400Gbps or 800Gbps. The number of terminals in each group has nearly doubled, and the number and density of terminals in the same group will cause resonance interference during high-frequency transmission of the connector. Therefore, further research and development and improvement are needed to solve the problem of resonance interference of the connector. Utility Model Content

[0003] In view of this, the utility model proposes an anti-interference optical port high-speed connector with multiple sets of common ground plates. The design of multiple sets of common ground plates solves the resonance interference of high-frequency transmission of the connector.

[0004] The technical solution disclosed in the utility model is an anti-interference optical port high-speed connector with multiple groups of common ground plates, including a connector housing and a terminal module fixed in the connector housing, the terminal module including a first terminal group, a second terminal group, a third terminal group, and a fourth terminal group, the first terminal group including a first row of terminals and a first plastic bracket molded with the first row of terminals, the second terminal group including a second row of terminals and a second plastic bracket molded with the second row of terminals, the third terminal group including a third row of terminals and a third plastic bracket molded with the third row of terminals, and the fourth terminal group including a fourth row of terminals and a fourth plastic bracket molded with the fourth row of terminals. Among them, each row of terminals in the first row of terminals, the second row of terminals, the third row of terminals, and the fourth row of terminals includes a plurality of grounding terminals, and each of the first plastic bracket, the second plastic bracket, the third plastic bracket, and the fourth plastic bracket is provided with at least one common ground plate connected to the grounding terminal of the corresponding row of terminals.

[0005] Furthermore, the number of terminals in each of the first row of terminals, the second row of terminals, the third row of terminals, and the fourth row of terminals is 35 pins, and each row of terminals includes four pairs of high-speed signal transmission links, with 2 adjacent pins as a group and two groups as a pair. The terminals on the left and right sides of the 2 pins in the high-speed signal transmission link are ground terminals.

[0006] Furthermore, the first plastic bracket and the second plastic bracket are in a straight plate shape, the third plastic bracket and the fourth plastic bracket are in a "﹃" shape, the front end of the second plastic bracket abuts against the rear end of the first plastic bracket, the bottom of the third plastic bracket is buckled on the top and rear end of the second plastic bracket, and the bottom of the fourth plastic bracket is buckled on the top and rear end of the third plastic bracket to form a stacked shape, the first row of terminals and the fourth row of terminals are opposite to each other up and down, and the second row of terminals and the third row of terminals are opposite to each other up and down.

[0007] Furthermore, the bottom of the first plastic bracket, the bottom of the second plastic bracket, the top of the third plastic bracket, and the top of the fourth plastic bracket are provided with multiple rows of transversely arranged through holes at the positions of the grounding terminals inside the corresponding plastic brackets, and a common ground sheet is provided on each row of through holes.

[0008] Furthermore, the common ground sheet includes a single-row common ground sheet and a double-row common ground sheet. The structure of the single-row common ground sheet is a flat long strip with a row of raised welding parts on it; the structure of the double-row common ground sheet is a flat long strip with a row of raised welding parts extending vertically outward on each of the two long sides of the flat long strip; the raised welding parts on the single-row common ground sheet and the double-row common ground sheet are embedded in the through-hole positions, and the raised welding parts are connected to the grounding terminals by laser welding.

[0009] Furthermore, three rows of through holes are provided at the bottom of the first plastic bracket, and each of the three rows of through holes is provided with a single-row common ground piece, or a single-row common ground piece is provided at the first row of through holes near the front end of the first row of terminals, and a double-row common ground piece is provided at the rear two rows of through holes.

[0010] Furthermore, two rows of through holes are provided at the bottom of the second plastic bracket, and a single-row common ground sheet is provided at each of the two rows of through holes, or a double-row common ground sheet is provided at each of the two rows of through holes.

[0011] Furthermore, two rows of through holes are provided on the top of the third plastic bracket, and a single-row common ground piece is provided for each of the two rows of through holes, or a double-row common ground piece is provided for each of the two rows of through holes, wherein a first rear end window is provided at the rear side of the through holes near the rear end of the third plastic bracket and at the rear lower end of the third plastic bracket, a bending section is formed at the rear end of the third row of terminals and is exposed at the first rear end window, and a double-row common ground piece is provided at the first rear end window.

[0012] Furthermore, the top of the fourth plastic bracket is provided with four rows of through holes, and a single-row ground supply plate is respectively arranged at the four rows of through holes, or a single-row common ground plate is arranged at the first row of through holes near the front end of the fourth row of terminals, and two double-row common ground plates are arranged at the rear three rows of through holes, wherein a second rear end window position is arranged near the rear end of the fourth plastic bracket and the rear lower end of the fourth plastic bracket, the rear end of the fourth row of terminals forms a bending section and is exposed in the second rear end window position, and the raised welding portion of the double-row common ground plate near the upper end of the second rear end window position is bent obliquely downward to be connected to the grounding terminal forming the bending section.

[0013] Furthermore, a special-shaped single-row common ground piece is arranged at the lower port position of the second rear end window position. The structure of the special-shaped single-row common ground piece is a flat long strip, a row of connecting arms with one long side of the flat long strip bent obliquely outward and extended, each connecting arm is connected to an inclined raised welding portion, and the bottom of the inclined raised welding portion is connected to the grounding terminal forming a bent section.

[0014] The optical port high-speed connector designed by this technical solution has the following beneficial effects:

[0015] Common ground plates are provided on the first terminal group, the second terminal group, the third terminal group, and the fourth terminal group that constitute the terminal module, and multiple common ground plates are provided in the length direction of the grounding terminals of the same row of terminals to form multi-point common ground. The length of the terminal is positively correlated with the number of common ground plates provided. The longer the terminal, the more common ground plates and common points (the welding points between the raised welding parts of the common ground plates and the grounding terminals) are provided. The grounding terminals are respectively provided on the left and right sides of the 2-pins terminals that constitute the high-speed signal transmission link. Compared with no common ground plates or only one ground plate for each row of terminals, multiple groups of common ground plates are designed through this solution. While improving the transmission rate, it realizes the suppression of resonance interference during high-speed signal transmission, so that the optical port high-speed connector connection signal transmission is stable, and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the connector housing and terminal module structure according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the terminal module structure decomposition of the utility model.

[0018] Figure 3 It is a schematic diagram of the stacking assembly structure of the terminal modules of the present utility model.

[0019] Figure 4 It is a cross-sectional schematic diagram of the first row of terminals and the second row of terminals of the overall structure of the utility model.

[0020] Figure 5 It is a cross-sectional schematic diagram of the third row of terminals and the fourth row of terminals of the overall structure of the utility model.

[0021] Figure 6 This is a schematic diagram of the first terminal group of the utility model and the common ground plate structure provided therein.

[0022] Figure 7 This is a schematic diagram of the bottom structure of the first terminal group of the present invention.

[0023] Figure 8 This is a schematic diagram of the second terminal group of the utility model and the common ground plate structure provided therein.

[0024] Fig. 9 It is a schematic diagram of the bottom structure of the second terminal group of the present utility model.

[0025] Fig.10 This is a schematic diagram of the third terminal group of the utility model and the common ground plate structure provided therein.

[0026] Fig.11 This is a schematic diagram of the fourth terminal group of the utility model and the common ground plate structure provided therein.

[0027] Fig.12 This is a schematic diagram of the exploded structure of the fourth terminal group and the common ground plate arranged therein.

[0028] Fig.13 It is a structural perspective view of the terminal module and the common ground plate of the integral structure of the utility model.

[0029] Fig.14 This is a simulation analysis diagram of high-frequency simulation data for optical port high-speed connector without common ground design.

[0030] Fig.15 High-frequency simulation data analysis diagram for designing multiple sets of common ground plates for optical port high-speed connectors with longitudinal spacing greater than 4mm.

[0031] Fig.16 High-frequency simulation data analysis diagram for designing multiple sets of common ground plates for optical port high-speed connectors with longitudinal spacing less than or equal to 4mm.

[0032] Reference numerals:

[0033] 1. Connector housing; 2. Terminal module; 21. First terminal group; 211. First row of terminals; 212. First plastic bracket; 22. Second terminal group; 221. Second row of terminals; 222. Second plastic bracket; 23. Third terminal group; 231. Third row of terminals; 232. Third plastic bracket; 24. Fourth terminal group; 241. Fourth row of terminals; 242. Fourth plastic bracket; 100. Single-row common ground sheet; 100'. Special-shaped single-row common ground sheet; 200. Double-row common ground sheet; 200'. Second double-row common ground sheet; 2321. First rear end window position; 2421. Second rear end window position. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present disclosure, rather than all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present disclosure.

[0035] Please refer to Figures 1 to 13 , which is an embodiment of an anti-interference optical port high-speed connector provided with multiple sets of common ground plates provided by the technical solution.

[0036] Reference Figures 1 to 5, an anti-interference optical port high-speed connector with multiple groups of common ground plates, including a connector housing 1 and a terminal module 2 fixed in the connector housing 1, the terminal module 2 including a first terminal group 21, a second terminal group 22, a third terminal group 23, and a fourth terminal group 24, the first terminal group 21 including a first row of terminals 211, and a first plastic bracket 212 molded with the first row of terminals 211, the second terminal group 22 including a second row of terminals 221, and a second plastic bracket 222 molded with the second row of terminals 221, the third terminal group 23 including a third row of terminals 231, and a third plastic bracket 232 molded with the third row of terminals 231, the fourth terminal group 24 including a fourth row of terminals 241, and a fourth plastic bracket 242 molded with the fourth row of terminals 241.

[0037] The number of terminals in each row of the first row of terminals 211, the second row of terminals 221, the third row of terminals 231, and the fourth row of terminals 241 is 35 pins. Each row of terminals contains four pairs of high-speed signal transmission links, with two adjacent 2 pins in a group and two groups in a pair. The four rows of terminals in the connector increase the high-speed signal transmission link to sixteen pairs, and the number of terminals increases to 35 pins / group*4=140 pins. The operating rate of each channel is up to 25 Gbps through NRZ modulation or up to 50 Gbps through PAM4 modulation, thereby supporting 400 Gbps or 800 Gbps. The terminals on the left and right sides of the 2 pins in the high-speed signal transmission link are ground terminals. Each of the first plastic bracket 212, the second plastic bracket 222, the third plastic bracket 232, and the fourth plastic bracket 242 is provided with at least one common ground sheet connected to the ground terminal of the corresponding row of terminals.

[0038] By designing multiple sets of common ground plates in the corresponding terminal groups, it is beneficial to suppress resonance interference during high-speed signal transmission. Compared with no common ground plate or only one ground plate for each row of terminals, this solution achieves better anti-interference performance.

[0039] Reference Figure 2 , Figure 3, further, the first plastic bracket 212 and the second plastic bracket 222 are in a straight plate shape, the third plastic bracket 232 and the fourth plastic bracket 242 are in a "﹃" shape, the front end of the second plastic bracket 222 is in contact with the rear end of the first plastic bracket 212, the bottom of the third plastic bracket 232 is buckled on the top and rear end of the second plastic bracket 222, and the bottom of the fourth plastic bracket 242 is buckled on the top and rear end of the third plastic bracket 232 to form a stacked shape, the first row of terminals 211 and the fourth row of terminals 241 are opposite to each other, and the second row of terminals 221 and the third row of terminals 231 are opposite to each other. Therefore, the length of the third row of terminals 231 and the fourth row of terminals 241 is longer than that of the first row of terminals 211 and the second row of terminals 221. The length of the terminal is positively correlated with the number of common ground plates set. The longer the terminal is, the more common ground plates and common points (the welding points of the raised welding parts of the common ground plates and the grounding terminals) are set. The number and position of common ground plates in the same row of terminals are obtained through high-frequency analysis and simulation data, and then further tested after the actual product is made.

[0040] Furthermore, the bottom of the first plastic bracket 212, the bottom of the second plastic bracket 222, the top of the third plastic bracket 232, and the top of the fourth plastic bracket 242 are provided with multiple rows of horizontally arranged through holes at the grounding terminal positions inside the corresponding plastic brackets, and a common ground piece is provided on each row of through holes.

[0041] Further, the common ground sheet includes a single-row common ground sheet 100 and a double-row common ground sheet 200. The structure of the single-row common ground sheet 100 is a flat long strip, and a row of raised welding parts is provided on the flat long strip; the structure of the double-row common ground sheet 200 is a flat long strip, and each of the two long sides of the flat long strip is provided with a row of raised welding parts extending vertically outward; the raised welding parts on the single-row common ground sheet 100 and the double-row common ground sheet 200 are embedded in the through-hole position, and the raised welding parts are connected to the grounding terminal by laser welding. Laser welding is one of the better connection methods to achieve a stable connection between the raised welding part and the grounding terminal, and it can also be used, such as: a method of clamping with the through-hole position to achieve abutment and contact connection between the bottom of the raised welding part and the grounding terminal.

[0042] It should be noted that the width of the flat strips of the double-row common ground sheet 200 can be different widths, and a suitable width can be designed according to actual needs.

[0043] Reference Figure 6 , Figure 7 Preferably, the bottom of the first plastic bracket 212 is provided with three rows of through holes, each of which is provided with a single-row common ground sheet 100, or the first row of through holes near the front end of the first row of terminals 211 is provided with a single-row common ground sheet 100, and the two rows of through holes behind are provided with a double-row common ground sheet 200. Preferably, refer to Fig.13The longitudinal spacing distance a of the front protruding welding parts of the single-row common ground sheet 100 and the double-row common ground sheet 200 is ≤4 mm. The anti-resonance interference effect achieved by detecting this parameter spacing distance is better.

[0044] Reference Figure 8 , Fig. 9 Preferably, two rows of through holes are provided at the bottom of the second plastic bracket 222 , and a single-row common ground sheet 100 is provided at each of the two rows of through holes, or a double-row common ground sheet 200 is provided at each of the two rows of through holes.

[0045] Reference Fig.10 Preferably, two rows of through holes are provided at the top of the third plastic bracket 232, and a single-row common ground sheet 100 is respectively provided at the two rows of through holes, or a double-row common ground sheet 200 is provided at the two rows of through holes, wherein a first rear end window position 2321 is provided at the rear side of the through hole position close to the rear end of the third plastic bracket 232 and the rear lower end of the third plastic bracket 232, and a bending section is formed at the rear end of the third row of terminals 231 and exposed at the first rear end window position 2321, and a double-row common ground sheet 200 is provided at the first rear end window position 2321.

[0046] Reference Fig.11 Preferably, four rows of through holes are provided on the top of the fourth plastic bracket 242, and a single-row ground supply sheet is arranged at each of the four rows of through holes, or a single-row common ground sheet 100 is arranged at the first row of through holes near the front end of the fourth row of terminals 241, and a double-row common ground sheet 200 and a second double-row common ground sheet 200' are arranged at the three rows of through holes at the back, wherein a second rear end window 2421 is arranged near the rear end of the fourth plastic bracket 242 and the rear lower end of the fourth plastic bracket 242, and a bending section is formed at the rear end of the fourth row of terminals 241 and exposed at the second rear end window 2421, and a raised welding portion of the second double-row common ground sheet 200' near the upper end of the second rear end window 2421 is bent obliquely downward to be connected to the grounding terminal forming the bending section.

[0047] Reference Fig.12 Preferably, a special-shaped single-row common ground sheet 100' is arranged at the lower port position of the second rear end window position 2421. The structure of the special-shaped single-row common ground sheet 100' is a flat long strip, one of the long sides of the flat long strip is bent obliquely outward and extended into a row of connecting arms, each connecting arm is connected to an inclined raised welding portion, and the bottom of the inclined raised welding portion is connected to the grounding terminal forming a bent section.

[0048] Reference Fig.12 , Fig.13Through high-frequency analysis simulation data analysis, in view of the longer length of the fourth row of terminals 241, the longitudinal spacing distance b between the single-row type arranged on the fourth plastic bracket 242 and the front raised welding part of the first group of double-row common ground sheets 200 at its rear end is ≤4mm, the longitudinal spacing distance c between the rear raised welding part of the first group of double-row common ground sheets 200 and the front raised welding part of the second group of double-row common ground sheets 200' behind it is ≤4mm, and the spacing distance d between the inclined raised welding part on the rear side of the second group of double-row common ground sheets 200' and the raised welding part of the special-shaped single-row common ground sheet 100' is ≤4mm, so that the anti-resonance interference effect of the connector is better.

[0049] It should be noted that the common ground plates are all made of high-conductivity copper.

[0050] Reference Fig.14 Because the optical port high-speed connector has no common ground plane design, there are multiple resonance interferences in the range of 0 to 30 GHz, and neither low frequency nor high frequency can be transmitted normally.

[0051] Reference Fig.15 The intervals between multiple sets of common ground plates set on the same row of terminals of the optical port high-speed connector are greater than 4mm (i.e., the number of common ground plates is small). There is no resonance interference in the range of 0 to 20GHz, but there is greater resonance interference after 20GHz. The large spacing between the common ground plates makes it impossible to reach a higher frequency.

[0052] Reference Fig.16 The intervals between the multiple groups of common ground plates arranged on the same row of terminals of the optical port high-speed connector are less than or equal to 4 mm (that is, the number of common ground plates is appropriate), and there is no obvious resonance interference at 0 to 30 GHz.

[0053] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An anti-interference optical port high-speed connector with multiple sets of common ground plates, characterized in that: include: A connector housing and a terminal module fixed in the connector housing, The terminal module comprises: A first terminal group, the first terminal group is composed of a first row of terminals and a first plastic bracket molded with the first row of terminals; A second terminal group, the second terminal group is composed of a second row of terminals and a second plastic bracket molded with the second row of terminals; The third terminal group is composed of a third row of terminals and a third plastic bracket molded with the third row of terminals; The fourth terminal group is composed of a fourth row of terminals and a fourth plastic bracket molded with the fourth row of terminals; Among them, each row of terminals in the first row of terminals, the second row of terminals, the third row of terminals, and the fourth row of terminals includes multiple grounding terminals, and each of the first plastic bracket, the second plastic bracket, the third plastic bracket, and the fourth plastic bracket is provided with at least one common ground plate connected to the grounding terminals of the corresponding row of terminals.

2. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 1, characterized in that: The number of terminals in each of the first row of terminals, the second row of terminals, the third row of terminals, and the fourth row of terminals is 35 pins. Each row of terminals includes four pairs of high-speed signal transmission links, with 2 adjacent pins as a group and two groups as a pair. The terminals on the left and right sides of the 2 pins in the high-speed signal transmission link are ground terminals.

3. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 2, characterized in that: The first plastic bracket and the second plastic bracket are in a straight plate shape, the third plastic bracket and the fourth plastic bracket are in a "﹃" shape, the front end of the second plastic bracket is abutted against the rear end of the first plastic bracket, the bottom of the third plastic bracket is buckled on the top and rear end of the second plastic bracket, and the bottom of the fourth plastic bracket is buckled on the top and rear end of the third plastic bracket to form a stacked shape, the first row of terminals and the fourth row of terminals are opposite to each other up and down, and the second row of terminals and the third row of terminals are opposite to each other up and down.

4. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 3, characterized in that: The bottom of the first plastic bracket, the bottom of the second plastic bracket, the top of the third plastic bracket, and the top of the fourth plastic bracket are all provided with multiple rows of transversely arranged through holes at the positions of the grounding terminals inside the corresponding plastic brackets, and a common ground sheet is provided on each row of through holes.

5. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 4, characterized in that: The common ground sheet includes a single-row common ground sheet and a double-row common ground sheet. The structure of the single-row common ground sheet is a flat long strip with a row of raised welding parts on it; the structure of the double-row common ground sheet is a flat long strip with a row of raised welding parts extending vertically outward on each of the two long sides of the flat long strip; the raised welding parts on the single-row common ground sheet and the double-row common ground sheet are embedded in the through-hole positions, and the raised welding parts are connected to the grounding terminals by laser welding.

6. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 5, characterized in that: The bottom of the first plastic bracket is provided with three rows of through holes, each of which is provided with a single-row common ground piece, or the first row of through holes near the front end of the first row of terminals is provided with a single-row common ground piece, and the rear two rows of through holes are provided with a double-row common ground piece.

7. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 5, characterized in that: The bottom of the second plastic bracket is provided with two rows of through holes, and a single-row common ground sheet is respectively provided at the two rows of through holes, or a double-row common ground sheet is provided at the two rows of through holes.

8. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 5, characterized in that: The top of the third plastic bracket is provided with two rows of through holes, and a single-row common ground piece is respectively set at the two rows of through holes, or a double-row common ground piece is set at the two rows of through holes, wherein a first rear end window is set at the rear side of the through holes close to the rear end of the third plastic bracket and the rear lower end of the third plastic bracket, the rear end of the third row of terminals forms a bending section and is exposed at the first rear end window, and a double-row common ground piece is set at the first rear end window.

9. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 5, characterized in that: The top of the fourth plastic bracket is provided with four rows of through holes, and a single-row ground supply plate is respectively arranged at the four rows of through holes, or a single-row common ground plate is arranged at the first row of through holes near the front end of the fourth row of terminals, and two double-row common ground plates are arranged at the rear three rows of through holes, wherein a second rear end window is arranged near the rear end of the fourth plastic bracket and the rear lower end of the fourth plastic bracket, the rear end of the fourth row of terminals forms a bending section and is exposed in the second rear end window, and the raised welding portion of the double-row common ground plate near the upper end of the second rear end window is bent obliquely downward to be connected to the grounding terminal forming the bending section.

10. The anti-interference optical port high-speed connector with multiple sets of common ground plates according to claim 9, characterized in that: A special-shaped single-row common ground piece is arranged at the lower port position of the second rear end window position. The structure of the special-shaped single-row common ground piece is a flat long strip, a row of connecting arms with one long side of the flat long strip bent obliquely outward and extended, each connecting arm is connected to an inclined raised welding portion, and the bottom of the inclined raised welding portion is connected to the grounding terminal forming a bent section.

Images