CN111711031A - Grounding shielding structure for high-speed electric connector - Google Patents
Grounding shielding structure for high-speed electric connector Download PDFInfo
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- CN111711031A CN111711031A CN202010602764.3A CN202010602764A CN111711031A CN 111711031 A CN111711031 A CN 111711031A CN 202010602764 A CN202010602764 A CN 202010602764A CN 111711031 A CN111711031 A CN 111711031A
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- grounding
- shielding
- signal pin
- unit
- grounding shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a grounding shielding structure for a high-speed electric connector, which is used for the interconnection of grounding shields of the high-speed electric connector and comprises a unit plastic medium body, a first signal pin, a second signal pin, a grounding shielding shell and a plastic base body; the invention adopts a closed rectangular or polygonal grounding shielding shell which is formed by enclosing metal sheets, one, two or three grounding pins are arranged on the wall of the grounding shielding shell in an axially extending manner, and salient points are arranged on the outer wall of one side surface of the grounding shielding shell; the unit plastic medium body, the first signal pin and the second signal pin are arranged in the grounding shielding shell to form a shielding unit. The invention also adopts a box-shaped plastic seat body to sequentially inlay the plurality of shielding units in the shielding unit seats of the plastic seat body according to row arrangement, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells to form the interconnection of the grounding shielding shells, and finally a completely surrounded shielding layer is formed, thereby achieving the purpose of improving the high-speed performance index.
Description
Technical Field
The invention relates to the technical field of high-speed transmission grounding shields, the transmission rate is 16Gbps to 32Gbps, in particular to a grounding shield structure for a high-speed electric connector.
Background
The high-speed electric connector is used for supporting high-speed signal transmission and high-performance application. As the demand of high-speed connectors increases, the performance of the connectors is also more and more demanding, and in particular, the requirements on high-speed performance indexes of crosstalk, insertion loss and return loss are more and more strict. In order to meet these requirements, in the prior art, patent No. CN 103378494a discloses an electrical connector, a lead frame assembly and a ground plate, in order to achieve the shielded interconnection of differential pairs at intervals, a metal grounding shield plate is additionally manufactured by a ground pin in a butt joint interface, and two convex-concave alternate metal grounding shield plates are manufactured, wherein a convex portion of the metal grounding shield plate is in contact with the ground pin to achieve the effect of interconnection shielding. There is a problem in that the structure using the convex portion of the metal ground shield plate and the ground pin to contact each other has a weak anti-vibration capability and a poor contact reliability.
Disclosure of Invention
The invention aims at the defects of the prior art and provides a grounding shielding structure for a high-speed electric connector, which is used for the interconnection of grounding shields of the high-speed electric connector, wherein a closed rectangular or polygonal grounding shielding shell is formed by enclosing metal sheets, one, two or three grounding pins are axially extended and arranged on the wall of the grounding shielding shell, and salient points are arranged on the outer wall of one side surface of the grounding shielding shell; the unit plastic medium body, the first signal pin and the second signal pin are arranged in the grounding shielding shell to form a shielding unit; and then the shielding units are sequentially embedded in the shielding unit seats of the plastic seat body through the grounding shielding shells, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells. The shielding unit formed by the invention realizes full enclosure of the differential pair formed by the first signal pin and the second signal pin by the grounding shielding shell, and the grounding pin on the shielding unit and the grounding shielding shell are integrally formed, thereby avoiding the defect of poor contact reliability between the grounding pin and the grounding shielding shell. The invention also adopts a box-shaped plastic seat body to sequentially inlay the plurality of shielding units in the shielding unit seats of the plastic seat body according to row arrangement, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells to form the interconnection of the grounding shielding shells, and finally a completely surrounded shielding layer is formed, thereby achieving the purpose of improving the high-speed performance index.
The specific technical scheme for realizing the purpose of the invention is as follows:
a grounding shielding structure for a high-speed electric connector is characterized by comprising a unit plastic medium body, a first signal pin, a second signal pin, a grounding shielding shell and a plastic base body;
the unit plastic medium body, the first signal pin, the second signal pin and the grounding shielding shell form a shielding unit;
the grounding shielding shell is a closed rectangular or polygonal cylindrical body which is formed by enclosing metal sheets, one, two or three grounding needles extend axially on the wall of the cylindrical body, and salient points are arranged on the outer wall of one side face of the cylindrical body;
the unit plastic medium body is provided with a pair of differential signal pin jacks, the unit plastic medium body is arranged in the grounding shielding shell, and the first signal pin and the second signal pin are respectively arranged in the differential signal pin jacks;
the plastic base body is a box-shaped part, a plurality of shielding unit seats are arranged on the plastic base body according to rows, the shielding units are a plurality of parts, the shielding units are sequentially embedded in the shielding unit seats of the plastic base body through grounding shielding shells, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells.
The invention is used for the ground shield interconnection of the high-speed electric connector, the invention adopts the enclosed rectangular or polygonal ground shield shell which is formed by enclosing and closing the metal sheets, one, two or three ground pins are arranged on the wall of the ground shield shell along the axial extension, and salient points are arranged on the outer wall of one side surface of the ground shield shell; the unit plastic medium body, the first signal pin and the second signal pin are arranged in the grounding shielding shell to form a shielding unit; and then the shielding units are sequentially embedded in the shielding unit seats of the plastic seat body through the grounding shielding shells, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells. The shielding unit formed by the invention realizes full enclosure of the differential pair formed by the first signal pin and the second signal pin by the grounding shielding shell, and the grounding pin on the shielding unit and the grounding shielding shell are integrally formed, thereby avoiding the defect of poor contact reliability between the grounding pin and the grounding shielding shell. The invention also adopts a box-shaped plastic seat body to sequentially inlay the plurality of shielding units in the shielding unit seats of the plastic seat body according to row arrangement, and the salient points on the grounding shielding shells are contacted with the adjacent grounding shielding shells to form the interconnection of the grounding shielding shells, and finally a completely surrounded shielding layer is formed, thereby achieving the purpose of improving the high-speed performance index.
The invention has the following beneficial effects:
the invention breaks through the method of signal shielding by using single-row or double-row metal sheets in the prior art, adopts the grounding shielding shell integrated with the grounding pin, and realizes the scheme of fully surrounding a differential pair formed by the first signal pin and the second signal pin by the grounding shielding shell, thereby ensuring the effectiveness of shielding and the reliability of grounding, and avoiding the additional increase of a metal grounding structure between shielding units; the design that the shielding units are accommodated in the plastic seat bodies in a combined and arranged mode saves space requirements, and improves shielding stability and transmission capacity of high-speed signals.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a shielding unit according to the present invention;
FIG. 3 is a schematic structural view of a ground shield of a ground pin;
FIG. 4 is a schematic structural diagram of a ground shield of two ground pins;
FIG. 5 is a schematic structural diagram of a grounding shield case of three grounding pins;
fig. 6 is a schematic diagram of the present invention in use with a pin assignment device.
Detailed Description
Referring to fig. 1 and 2, the present invention includes a unit plastic dielectric body 1, a first signal pin 2, a second signal pin 3, a ground shield 4 and a plastic base 5.
Referring to fig. 1 and 2, the unit plastic dielectric body 1, the first signal pin 2, the second signal pin 3 and the ground shield shell 4 form a shield unit.
Referring to fig. 3, 4 and 5, the grounding shielding shell 4 is a closed rectangular or polygonal cylinder surrounded by metal sheets, one, two or three grounding pins 41 extend axially on the wall of the cylinder, and bumps 42 are provided on the outer wall of one side of the cylinder.
Referring to fig. 1 and 2, a pair of differential signal pin jacks 11 is formed in the unit plastic dielectric body 1, the unit plastic dielectric body 1 is disposed in the ground shield case 4, and the first signal pin 2 and the second signal pin 3 are respectively disposed in the differential signal pin jacks 11.
Referring to fig. 1 and 2, the plastic base 5 is a box-shaped member, on which a plurality of shielding unit seats 51 are arranged in rows, the shielding units are a plurality of members, the shielding units are sequentially embedded in the shielding unit seats 51 of the plastic base 5 through the grounding shielding shells 4, and the bumps 42 on the grounding shielding shells 4 touch the adjacent grounding shielding shells 4.
Examples
Referring to fig. 1 and 5, in order to match with the pin assignment pin distributor currently used, the present invention adopts a ground shield case 4 having one, two, and three ground pins 41, respectively, a unit plastic dielectric body 1 having a pair of differential signal pin insertion holes 11 is disposed in the ground shield case 4, a first signal pin 2 and a second signal pin 3 are disposed in the differential signal pin insertion holes 11, respectively, to form a shield unit having different numbers of ground pins 41, the shield units having different numbers of ground pins 41 are disposed corresponding to the pin distributor, and a plurality of shielding units are sequentially embedded in the shielding unit seats 51 of the plastic seat body 5 according to the row arrangement, and the salient point 42 on each grounding shielding shell 4 touches the adjacent grounding shielding shell 4 to form the interconnection of the grounding shielding shells 4, so as to form a completely enclosed shielding layer, and the grounding shielding and the interconnection of the high-speed electric connector are realized through the butt joint with the pin distributor.
The invention is applied to the field of high-speed transmission, the transmission rate is 16G-32G, and the technical scheme that the differential pair formed by the first signal pin 2 and the second signal pin 3 is fully surrounded by the grounding shielding shell 4 is adopted, so that the reliability of high-speed transmission and the strong capability of resisting crosstalk can be ensured.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A grounding shielding structure for a high-speed electric connector is characterized by comprising a unit plastic medium body (1), a first signal pin (2), a second signal pin (3), a grounding shielding shell (4) and a plastic base body (5);
the unit plastic medium body (1), the first signal pin (2), the second signal pin (3) and the grounding shielding shell (4) form a shielding unit;
the grounding shielding shell (4) is a closed rectangular or polygonal cylindrical body formed by enclosing metal sheets, one, two or three grounding needles (41) extend axially on the wall of the cylindrical body, and salient points (42) are arranged on the outer wall of one side face of the cylindrical body;
the unit plastic medium body (1) is provided with a pair of differential signal pin jacks (11), the unit plastic medium body (1) is arranged in the grounding shielding shell (4), and the first signal pin (2) and the second signal pin (3) are respectively arranged in the differential signal pin jacks (11);
the plastic seat body (5) is a box-shaped part, a plurality of shielding unit seats (51) are arranged on the box-shaped part according to rows, the shielding units are a plurality of parts, the shielding units are sequentially embedded in the shielding unit seats (51) of the plastic seat body (5) through the grounding shielding shells (4), and the salient points (42) on the grounding shielding shells (4) are contacted with the adjacent grounding shielding shells (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602764.3A CN111711031A (en) | 2020-06-29 | 2020-06-29 | Grounding shielding structure for high-speed electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010602764.3A CN111711031A (en) | 2020-06-29 | 2020-06-29 | Grounding shielding structure for high-speed electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111711031A true CN111711031A (en) | 2020-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010602764.3A Pending CN111711031A (en) | 2020-06-29 | 2020-06-29 | Grounding shielding structure for high-speed electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111711031A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560550A2 (en) * | 1992-03-09 | 1993-09-15 | The Whitaker Corporation | Shielded back plane connector |
| CN2657225Y (en) * | 2003-10-09 | 2004-11-17 | 台端兴业股份有限公司 | Combined structure of connector |
| CN203983637U (en) * | 2014-07-12 | 2014-12-03 | 东莞市江涵电子有限公司 | The miniature clamping type bonding wire USB connector with ground strip |
| CN105703159A (en) * | 2014-12-16 | 2016-06-22 | 泰科电子公司 | Electrical connector with joined ground shields |
| CN206908025U (en) * | 2017-07-27 | 2018-01-19 | 安费诺电子装配（厦门）有限公司 | A kind of connector combination for transmitting high speed signal |
| CN110444945A (en) * | 2019-09-07 | 2019-11-12 | 昆山嘉华电子有限公司 | Electric coupler component and electronic equipment |
-
2020
- 2020-06-29 CN CN202010602764.3A patent/CN111711031A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0560550A2 (en) * | 1992-03-09 | 1993-09-15 | The Whitaker Corporation | Shielded back plane connector |
| CN2657225Y (en) * | 2003-10-09 | 2004-11-17 | 台端兴业股份有限公司 | Combined structure of connector |
| CN203983637U (en) * | 2014-07-12 | 2014-12-03 | 东莞市江涵电子有限公司 | The miniature clamping type bonding wire USB connector with ground strip |
| CN105703159A (en) * | 2014-12-16 | 2016-06-22 | 泰科电子公司 | Electrical connector with joined ground shields |
| CN206908025U (en) * | 2017-07-27 | 2018-01-19 | 安费诺电子装配（厦门）有限公司 | A kind of connector combination for transmitting high speed signal |
| CN110444945A (en) * | 2019-09-07 | 2019-11-12 | 昆山嘉华电子有限公司 | Electric coupler component and electronic equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200925 |