CN111755913B - Short shielding path type high-speed electric connector - Google Patents
Short shielding path type high-speed electric connector Download PDFInfo
- Publication number
- CN111755913B CN111755913B CN202010472108.6A CN202010472108A CN111755913B CN 111755913 B CN111755913 B CN 111755913B CN 202010472108 A CN202010472108 A CN 202010472108A CN 111755913 B CN111755913 B CN 111755913B
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- shielding
- plastic base
- plate
- needle
- contact
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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
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The short-shielding-path high-speed electric connector comprises a plastic base, wherein a shielding plate is arranged in the middle of the plastic base, shielding pins and differential signal pins are embedded in the upper and lower sides of the plastic base in a mirror symmetry manner, and the shielding pins are arranged on two sides of the differential signal pins at intervals; the shielding needle comprises a shielding needle body, a plastic base and a shielding needle, wherein the shielding needle body is provided with a shielding needle hole, the shielding needle hole is arranged in the plastic base, the shielding needle body is provided with a shielding needle hole, the shielding needle hole is arranged in the shielding needle hole, the shielding needle hole is provided with a shielding needle, the shielding needle hole is provided with a downward bent inner contact plate, the outer end of the shielding needle body is provided with an upward convex contact head, the contact head is arranged on the outer surface of the plastic base, and a counter bore is formed in the position, opposite to the inner contact plate, in the plastic base; the invention can shield the upper and lower signal differential pairs from the middle part, thereby improving the signal shielding effect; compared with the traditional flat plate type differential signal needle, the inner contact plate with the inner end bent downwards can shorten the overall size of the differential signal needle, further shorten the backflow path of a shielding circuit and improve the shielding effect of the overall connector; the contact head protruding upwards can reduce area of contact, and then reduces resistance, also is convenient for the cartridge cooperation simultaneously.
Description
Technical Field
The invention belongs to the technical field of high-speed electric connectors, and particularly relates to a short-shielding-path type high-speed electric connector.
Background
High speed electrical connectors are used to support high performance applications. The shielding of the signal is critical to the overall design. Meanwhile, the electric connector for up-down mirror symmetry has a mirror image relationship, no shielding exists between an upper signal differential pair and a lower signal differential pair, so that the signal shielding effect is poor, although shielding pins exist between differential signal pins, the shielding pins are mainly of a planar structure, so that a shielding return path is longer, the overall size of the high-speed connector can be increased, the shielding effect can be reduced, and a better shielding effect cannot be achieved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a short-shielding-path high-speed electric connector, which has the following specific technical scheme:
the short-shielding-path high-speed electric connector comprises a plastic base, wherein a shielding plate is arranged in the middle of the plastic base, shielding pins and differential signal pins are embedded in the upper and lower sides of the plastic base in a mirror symmetry manner, and the shielding pins are arranged on two sides of the differential signal pins at intervals; the inner of shielding needle is the interior contact plate of bending down, the outer end is the bellied contact head that makes progress, the contact head is arranged in the surface of plastic base, plastic base inside with interior contact plate relative position department has seted up the counter bore, the contact head is used for forming the return circuit with the butt joint end cooperation, interior contact plate embedding in the counter bore, the shielding plate run through in the counter bore, interior contact plate laminating contact the shielding plate.
Further, the shielding needle includes flat section, slope section, contact head and interior contact plate, the slope section is connected to the outer end of flat section, the slope section slope sets up downwards, the outer end of slope section does the contact head, slope section, contact head are elastic structure, the interior contact plate is connected to the inner of flat section.
Furthermore, the inner contact plate is L-shaped, and the horizontal part of the inner contact plate is in contact with the shielding plate in an attaching manner.
Furthermore, the shielding plate is provided with a slot, the opening of the slot is arranged outwards,
furthermore, the plastic base wraps the shielding sheet in the plastic base through injection molding.
Furthermore, side slots are formed in the side faces of the plastic base, the shielding plate is inserted into the side slots, locking pieces are embedded into the outer ends of the plastic base, and the locking pieces are fixed to the shielding plate in an inserted mode.
Further, the retaining member includes outer baffle, picture peg, the inner wall of outer baffle is equipped with the picture peg perpendicularly, outer baffle backstop imbed in the outer end of plastic base, the picture peg graft in the fluting.
Furthermore, plastic base top surface and bottom surface mirror symmetry are seted up flutedly, the recess includes shielding needle hold up tank and difference signal needle hold up tank, the shielding needle be embedded in the shielding needle hold up tank, the difference signal needle be embedded in the difference signal needle hold up tank, the counter bore is located the inner of shielding needle hold up tank, the mirror image distributes the shielding needle all with the shield plate laminating contact.
The invention has the beneficial effects that:
1. the shielding plate can shield the upper and lower signal differential pairs from the middle part, so that the signal shielding effect is improved;
2. compared with the traditional flat plate type differential signal needle, the inner contact plate with the inner end bent downwards can shorten the overall size of the differential signal needle, further shorten the backflow path of a shielding circuit and improve the shielding effect of the overall connector; the contact heads protruding upwards can reduce the contact area, further reduce the resistance, and are convenient to plug and fit;
3. the counter bore can be used as a contact plate mounting area, so that the contact plate can be electrically contacted with the shielding plate.
Drawings
FIG. 1 is a schematic diagram of the short shield path high speed electrical connector of the present invention;
FIG. 2 is a schematic view of the plastic base structure of the present invention;
FIG. 3 is a schematic diagram of a differential signal pin and shield pin configuration of the present invention;
FIG. 4 is a schematic cross-sectional view of the differential signal pin, the shield pin and the shield plate of the present invention;
FIG. 5 is a cross-sectional view of the differential signal pin of the present invention in engagement with a shield plate;
FIG. 6 shows a schematic diagram of the shield plate structure of the present invention;
FIG. 7 is a schematic structural diagram illustrating an embodiment of a shield plate and a plastic base according to the present invention;
FIG. 8 is a schematic structural view showing a second embodiment of the connection state between the shielding plate and the plastic base according to the present invention;
FIG. 9 is a schematic view showing a structure of the shield plate and the locker in accordance with the present invention;
shown in the figure: 1. a plastic base; 11. a shielding needle storage tank; 111. a counter bore; 12. a differential signal pin storage tank; 13. a side slot; 2. a shielding needle; 21. a flat plate section; 22. an inclined section; 23. a contact head; 24. an inner contact plate; 3. a differential signal pin; 4. a shielding plate; 41. grooving; 5. a locking member; 51. an outer baffle; 52. and (4) inserting plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The short shielding path type high-speed electric connector comprises a plastic base 1, wherein a shielding plate 4 is arranged in the middle of the plastic base 1, and the shielding plate 4 can shield an upper signal differential pair and a lower signal differential pair from the middle to improve the signal shielding effect;
the shielding pins 2 and the differential signal pins 3 are embedded in the upper and lower sides of the plastic base 1 in a mirror symmetry manner, and the shielding pins 2 are arranged on two sides of the differential signal pins 3 at intervals; the inner end of the shielding needle 2 is provided with a downward bent inner contact plate 24, the outer end of the shielding needle is provided with an upward protruding contact head 23, the contact head 23 is arranged on the outer surface of the plastic base 1, a counter bore 111 is formed in the plastic base 1 at a position opposite to the inner contact plate 24, the contact head 23 is used for being matched with a butt joint end to form a loop, the inner contact plate 24 is embedded into the counter bore 111, the shielding plate 4 penetrates through the counter bore 111, and the inner contact plate 24 is in contact with the shielding plate 4 in an attaching manner; compared with the traditional flat plate type differential signal pin, the inner contact plate 24 with the inner end bent downwards can shorten the overall size of the differential signal pin 3, further shorten the backflow path of a shielding circuit and improve the shielding effect of the overall connector; the contact head 23 protruding upwards can reduce the contact area, so as to reduce the resistance, and is convenient for insertion and matching; the counterbore 111 is designed to serve as a mounting area for the inner contact plate 24 to facilitate electrical contact between the inner contact plate 24 and the shield plate 4.
As shown in fig. 5, the shielding pin 2 includes a flat plate section 21, an inclined section 22, a contact head 23, and an inner contact plate 24, an outer end of the flat plate section 21 is connected to the inclined section 22, the inclined section 22 is disposed obliquely downward, an outer end of the inclined section 22 is the contact head 23, the inclined section 22 and the contact head 23 are both elastic structures, and an inner end of the flat plate section 21 is connected to the inner contact plate 24; the contact head 23 can be conveniently inserted into the inclined section 22 of the elastic structure, and the reset force of the inclined section can improve the matching strength of the contact head 23 and the butt joint end.
As an improvement of the above technical solution, the inner contact plate 24 is L-shaped, and a horizontal portion of the inner contact plate 24 is in contact with the shielding plate 4; the L-shaped inner contact plate 24 can maximally shorten the length of the differential signal pin 3 while ensuring easy processing.
As shown in fig. 7, the plastic base 1 is formed by injection molding to wrap the shielding sheet 4 in the plastic base 1; the shielding plate 4 and the plastic base 1 can be integrally formed by injection molding.
As shown in fig. 6, a slot 41 is provided on the shielding plate 4, and an opening of the slot 41 is disposed outward; the grooving can increase the shielding plate contact surface, improves contact strength.
As shown in fig. 8, a side slot 13 is formed in a side surface of the plastic base 1, the shielding plate 4 is inserted into the side slot 13, a locking member 5 is embedded in an outer end of the plastic base 1, and the locking member 5 and the shielding plate 4 are inserted and fixed; the design of side slot 13 can be convenient for shield plate 4 and plastic base 1 equipment, and the equipment of being convenient for, retaining member 5 can be fixed shield plate 4.
As shown in fig. 8 and 9, the locking member 5 includes an outer baffle 51 and an insertion plate 52, the insertion plate 52 is vertically disposed on an inner wall of the outer baffle 51, the outer baffle 51 is embedded into an outer end of the plastic base 1, and the insertion plate 52 is inserted into the slot 41; by matching the inserting plate 52 with the slot 41, the locking member 5 and the shielding plate can be assembled and separated quickly and conveniently, and the disassembly and maintenance are convenient.
As shown in fig. 2 to 4, grooves are symmetrically formed in the top surface and the bottom surface of the plastic base 1 in a mirror image manner, each groove includes a shielding pin storage groove 11 and a differential signal pin storage groove 12, the shielding pin 2 is embedded in the shielding pin storage groove 11, the differential signal pin 3 is embedded in the differential signal pin storage groove 12, the counter bore 111 is located at the inner end of the shielding pin storage groove 11, and the shielding pins 2 distributed in a mirror image manner are all in contact with the shielding plate 4 in an attaching manner; the shielding needle storage tank 11 and the differential signal needle storage tank 12 that the mirror image distributes can install upper and lower two sets of differential signal needle 3, shielding needle 2, and the inner of upper and lower two sets of shielding needle 2 all inwards bends simultaneously and the shielding plate 4 electrical property laminating contact in middle part to shorten the backward flow route of shielded wire.
One or more shielding pins are distributed between one or more pairs of differential signal pins, the shielding plate is arranged in the middle of the upper side and the lower side of the plastic base, meanwhile, the tail part of one or more shielding pins is bent to form a loop with the shielding plate, and a plurality of hole sites are arranged on the plastic base and are matched and fixed with the shielding pins and the differential signal pins through barbs.
The invention is implemented as follows:
assembling the electric connector: the shielding plate 4 is inserted into the plastic base 1 from the side slot 13 at the side part, the shielding plate 4 sequentially passes through the two counter bores 111 while being inserted, when the shielding plate 4 is inserted to a specified position, the locking member 5 is inserted, the two inserting plates 52 are inserted into the open slots 41 of the shielding plate 4, the inserting plates 52 are in interference fit with the open slots 41, and the outer baffle 51 is abutted against the plastic base 1 for stopping;
after the shielding plate 4 and the plastic base 1 are fixed, the differential signal pins 3 are embedded into the differential signal pin storage grooves 12, the shielding pins 2 are embedded into the shielding pin storage grooves 11, the differential signal pins 3 and the shielding pins 2 are distributed at the top and the bottom of the shielding plate 4 in a mirror symmetry manner, when the shielding pins 2 are installed, the inner L-shaped downward-bent inner contact plate 24 at the inner end of the shielding pin 2 is embedded into the counter bore 111, and the plane part of the inner contact plate 24 is attached to and electrically contacted with the shielding plate 4;
after the shielding needle 2 and the differential signal needle 3 are installed, an outer shield is sleeved, the shielding needle 2 is pressed and fixed in the shielding needle storage groove 11 by the outer shield, and the differential signal needle 3 is pressed and fixed in the differential signal needle storage groove 12 by the outer shield;
when in work: the electric connector is inserted into the butt joint seat, the contact head 23 of the protruding bending structure is in point contact with the butt joint seat, the butt joint seat downwards extrudes the contact head 23, so that the contact head 23 and the inclined section 22 are pressed to be deformed, and the contact strength of the butt joint seat, the shielding pin 2 and the differential signal pin 3 is higher due to the resilience force of the contact head 23 and the inclined section 22;
differential signal current on the docking station is led out through the differential signal pin 3, shielding current on the docking station is led into the upper shielding pin 2 and the lower shielding pin 2, and the current sequentially passes through the contact head 23, the inclined section 22, the flat plate section 21 and the inner contact plate 24 to be converged onto the shielding plate 4, so that a shielding backflow path is shortened, and the shielding pins 2 and the shielding plate 4 are in an effective isolation shielding structure outside the differential signal pin 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. Short shielding route formula high speed electric connector which characterized in that: the shielding device comprises a plastic base (1), wherein a shielding plate (4) is arranged in the middle of the plastic base (1), shielding needles (2) and differential signal needles (3) are embedded in the upper and lower sides of the plastic base (1) in a mirror symmetry manner, and the shielding needles (2) are arranged on two sides of the differential signal needles (3) at intervals; the shielding needle comprises a shielding needle body (2), wherein the inner end of the shielding needle body (2) is provided with a downward bent inner contact plate (24), the outer end of the shielding needle body is provided with an upward convex contact head (23), the contact head (23) is arranged on the outer surface of a plastic base (1), a counter bore (111) is formed in the position, opposite to the inner contact plate (24), in the plastic base (1), the contact head (23) is used for being matched with a butt joint end to form a loop, the inner contact plate (24) is embedded into the counter bore (111), a shielding plate (4) penetrates through the counter bore (111), and the inner contact plate (24) is in fit contact with the shielding plate (4);
the shielding plate (4) is provided with a slot (41), an opening of the slot (41) is arranged outwards, and the plastic base (1) wraps the shielding sheet (4) in the plastic base (1) through injection molding; side slot (13) have been seted up to the side of plastic base (1), shield plate (4) insert in side slot (13), the outer end embedding of plastic base (1) has retaining member (5), retaining member (5) with shield plate (4) cartridge is fixed.
2. The short shield path high speed electrical connector of claim 1, wherein: shielding needle (2) are including flat section (21), slope section (22), contact head (23) and interior contact plate (24), slope section (22) is connected to the outer end of flat section (21), slope section (22) slope sets up downwards, the outer end of slope section (22) does contact head (23), slope section (22), contact head (23) are elastic construction, interior contact plate (24) are connected to the inner of flat section (21).
3. The short shield path high speed electrical connector of claim 2, wherein: the inner contact plate (24) is L-shaped, and the horizontal part of the inner contact plate (24) is in contact with the shielding plate (4).
4. The short shield path high speed electrical connector of claim 1, wherein: retaining member (5) include outer baffle (51), picture peg (52), the inner wall of outer baffle (51) is equipped with picture peg (52) perpendicularly, outer baffle (51) backstop is embedded in the outer end of plastic base (1), picture peg (52) peg graft in fluting (41).
5. The short shield path high speed electrical connector of claim 1, wherein: plastic base (1) top surface and bottom surface mirror symmetry are seted up flutedly, the recess includes shielding needle hold up tank (11) and difference signal needle hold up tank (12), shielding needle (2) be embedded in shielding needle hold up tank (11), difference signal needle (3) be embedded in difference signal needle hold up tank (12), counter bore (111) are located the inner of shielding needle hold up tank (11), the mirror image distributes shielding needle (2) all with shielding plate (4) laminating contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472108.6A CN111755913B (en) | 2020-05-29 | 2020-05-29 | Short shielding path type high-speed electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010472108.6A CN111755913B (en) | 2020-05-29 | 2020-05-29 | Short shielding path type high-speed electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111755913A CN111755913A (en) | 2020-10-09 |
| CN111755913B true CN111755913B (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010472108.6A Active CN111755913B (en) | 2020-05-29 | 2020-05-29 | Short shielding path type high-speed electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111755913B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628959B (en) * | 2021-02-09 | 2024-05-14 | 中航光电科技股份有限公司 | Differential signal connector assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201639092U (en) * | 2010-02-08 | 2010-11-17 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
| CN102820589A (en) * | 2011-06-10 | 2012-12-12 | 泰科电子新加坡股份有限公司 | Cross talk reduction for a high speed electrical connector |
| CN103094736A (en) * | 2011-11-07 | 2013-05-08 | 富士康(昆山)电脑接插件有限公司 | Cable connecting device assembly |
| CN103138116A (en) * | 2011-11-22 | 2013-06-05 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
| CN103560360A (en) * | 2011-04-20 | 2014-02-05 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN108461993A (en) * | 2017-02-15 | 2018-08-28 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9531129B2 (en) * | 2015-05-12 | 2016-12-27 | Tyco Electronics Corporation | Electrical connector and connector system having bussed ground conductors |
-
2020
- 2020-05-29 CN CN202010472108.6A patent/CN111755913B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201639092U (en) * | 2010-02-08 | 2010-11-17 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
| CN103560360A (en) * | 2011-04-20 | 2014-02-05 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
| CN102820589A (en) * | 2011-06-10 | 2012-12-12 | 泰科电子新加坡股份有限公司 | Cross talk reduction for a high speed electrical connector |
| CN103094736A (en) * | 2011-11-07 | 2013-05-08 | 富士康(昆山)电脑接插件有限公司 | Cable connecting device assembly |
| CN103138116A (en) * | 2011-11-22 | 2013-06-05 | 富士康(昆山)电脑接插件有限公司 | Cable connector assembly |
| CN108461993A (en) * | 2017-02-15 | 2018-08-28 | 富士康(昆山)电脑接插件有限公司 | Electric connector |
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| Publication number | Publication date |
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| CN111755913A (en) | 2020-10-09 |
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