CN111755911B - Cable connecting structure of high-speed connector - Google Patents
Cable connecting structure of high-speed connector Download PDFInfo
- Publication number
- CN111755911B CN111755911B CN202010662089.3A CN202010662089A CN111755911B CN 111755911 B CN111755911 B CN 111755911B CN 202010662089 A CN202010662089 A CN 202010662089A CN 111755911 B CN111755911 B CN 111755911B
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- Prior art keywords
- shielding
- differential signal
- unit
- plastic base
- cable
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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
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6461—Means for preventing cross-talk
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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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
- H01R13/6588—Shielding material individually surrounding or interposed between mutually spaced contacts with through openings for individual contacts
-
- 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
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The invention discloses a cable connecting structure of a high-speed connector, which comprises a shell, a plastic base, a grounding pin, a first differential signal pin, a second differential signal pin, a shielding sheet and a shielding cable, wherein the plastic base is provided with a plastic base; the plastic base is divided into a plurality of unit seats, a pair of differential signal pin jacks and two grounding pin jacks are arranged on each unit seat, shielding sheets provided with unit waves of a plurality of rectangles are adopted, each rectangular unit wave on each shielding sheet corresponds to each unit seat on the plastic base in sequence, the two shielding sheets are arranged on the upper side and the lower side of a shielding cable in a mirror image mode, a pair of unit waves of each shielding sheet independently shield a pair of differential signal pins, and the elastic sheets of the shielding sheets are connected with the shielding layer of the shielding cable, so that a completely surrounded shielding unit formed by interconnection of the grounding pins and the shielding layer of the shielding cable is formed, the defect of poor contact reliability between the shielding sheets is overcome, the problem of large signal crosstalk of a connector is finally overcome, and the purpose of improving high-speed performance indexes is achieved.
Description
Technical Field
The invention relates to the connection between a cable and a connector in the technical field of high-speed electric connectors, in particular to a cable connecting structure of a high-speed connector.
Background
High speed electrical connectors are used to support the transmission of high performance signals. When high-speed signals are transmitted in a short distance, a plug and a socket of a connector are used as carriers for transmitting the signals, when the high-speed signals are transmitted in a long distance, a cable and the plug or the socket of the connector are required to be combined to be used as carriers for transmitting the signals, and the performance of signal transmission relates to a connector body, the cable and the combination part of the connector and the cable.
Disclosure of Invention
The invention aims at providing a cable connection structure of a high-speed connector aiming at the defects of the prior art, which adopts a plastic base divided into a plurality of unit seats, each unit seat is provided with a pair of differential signal pin jacks and two grounding pin jacks, a shielding sheet provided with a plurality of rectangular unit waves is adopted, each rectangular unit wave on the shielding sheet corresponds to each unit seat on the plastic base in sequence, two shielding sheets are arranged on the upper side and the lower side of a shielding cable in a mirror image manner, a pair of unit waves of the shielding sheet independently shields a pair of differential signal pins to form a shielding unit, the shielding unit is connected with the shielding layer of the shielding cable through a spring sheet of the shielding sheet to form a grounding pin and the shielding layer of the shielding cable to be interconnected, the shielding unit formed by the invention realizes a full-enclosure structure by the differential pair formed by the pair of unit waves of the shielding sheet and the grounding pins, the shielding sheet, the grounding pin and the shielding layer of the shielding cable are interconnected to form a complete surrounding shielding structure, so that the defect of poor contact reliability between the shielding sheet, the grounding pin and the shielding layer of the shielding cable is avoided, the problem of large signal crosstalk of the connector is finally solved, and the aim of improving high-speed performance indexes is fulfilled. The plastic base and the shell can be expanded according to the unit seat, and the design of the multi-core and multi-unit connector is facilitated.
The specific technical scheme for realizing the purpose of the invention is as follows:
a cable connecting structure of a high-speed connector is characterized by comprising a shell, a plastic base, a grounding pin, a first differential signal pin, a second differential signal pin, a shielding sheet and a shielding cable;
the shell is a shell part which is internally provided with a base cavity and externally provided with a connecting flange;
the plastic base is sequentially provided with a plurality of unit seats, each unit seat is provided with four pin jacks side by side, the middle part of each unit seat is provided with a pair of differential signal pin jacks, two sides of each unit seat are respectively provided with a grounding pin jack, and the orifices of the pair of differential signal pin jacks on the plastic base are provided with bosses and baffles;
the shielding sheet is a long strip sheet-shaped piece, a plurality of rectangular unit waves are sequentially folded along the length direction, and each rectangular unit wave on the shielding sheet corresponds to each unit seat on the plastic base in sequence;
the unit wave of the shielding sheet consists of a bulge in the middle and concave parts on two sides, and an overhanging elastic sheet is arranged on the bulge;
the shielding cable is provided with a wire core, an insulating layer, a shielding layer and a protective layer;
the plastic base is arranged in a base cavity of the shell;
the first differential signal pin and the second differential signal pin are respectively arranged in a pair of differential signal pin jacks of a unit seat of the plastic base, and the number of the grounding pins is two and the two grounding pins are respectively arranged in grounding pin jacks of the unit seat of the plastic base;
the shielding cables of each unit seat are two and are arranged on the boss of the plastic base and positioned on two sides of the baffle, and the wire cores are respectively connected with the first differential signal pin and the second differential signal pin;
the shielding sheets are arranged on the upper side and the lower side of the shielding cables in a mirror image mode, the protrusions of the two shielding sheets surround the insulating layers of the two shielding cables, the concave portions on the two sides are connected with the two grounding pins respectively, and the elastic sheets of the shielding sheets are connected with the shielding layers of the two shielding cables.
The invention adopts a method that a plastic base is divided into a plurality of unit seats, each unit seat is provided with a pair of differential signal pin jacks and two grounding pin jacks, a shielding sheet provided with a plurality of rectangular unit waves is adopted, each rectangular unit wave on the shielding sheet corresponds to each unit seat on the plastic base in sequence, two shielding sheets are arranged on the upper side and the lower side of a shielding cable in a mirror image manner, a pair of unit waves of the shielding sheet independently shield a pair of differential signal pins to form a shielding unit, and the grounding pin is connected with a shielding layer of the shielding cable through a spring sheet of the shielding sheet to form a grounding pin which is interconnected with the shielding layer of the shielding cable, the shielding unit formed by the invention realizes a fully-enclosed structure by the pair of unit waves of the shielding sheet and the grounding pin, and the shielding layer of the shielding cable are interconnected to form a complete-enclosed shielding structure, the defect of poor contact reliability between the two connectors is avoided, the problem of high signal crosstalk of the connector is finally solved, and the purpose of improving high-speed performance indexes is achieved. The plastic base and the shell can be expanded according to the unit seat, and the design of the multi-core and multi-unit connector is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view taken along line A of FIG. 1;
FIG. 3 is a schematic structural diagram of a plastic base according to the present invention;
FIG. 4 is a schematic structural view of a unit base of the plastic base of the present invention;
FIG. 5 is a schematic structural diagram of a shielding plate according to the present invention;
FIG. 6 is a schematic structural diagram of a unit wave of the shielding plate of the present invention;
fig. 7 is a schematic diagram of the usage state of the present invention.
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.
Referring to fig. 1 and 2, the present invention includes a housing 21, a plastic base 26, a ground pin 22, a first differential signal pin 23, a second differential signal pin 24, a shielding plate 28 and a shielding cable 29; the shell 21 is a shell member with a base cavity therein and a connecting flange outside.
Referring to fig. 1, 3 and 4, the plastic base 26 is sequentially provided with a plurality of unit seats, and each unit seat is provided with four pin insertion holes side by side, wherein the middle part is a pair of differential signal pin insertion holes, two sides are ground pin insertion holes, and the plastic base 26 is provided with a boss 261 and a baffle 262 on the hole openings of the pair of differential signal pin insertion holes.
Referring to fig. 1, 2, 5, and 6, the shielding plate 28 is a long strip-shaped plate, and a plurality of rectangular unit waves are sequentially folded along the length direction, and each rectangular unit wave on the shielding plate 28 corresponds to each unit seat on the plastic base 26 in sequence;
the unit wave of the shielding plate 28 is composed of a protrusion 282 in the middle and recesses 281 on both sides, and an outward extending elastic sheet 284 is provided on the protrusion 282.
Referring to fig. 1 and 2, the shielding cable 29 is provided with a wire core 294, an insulating layer 293, a shielding layer 292, and a protective layer; the plastic base 26 is arranged in the base cavity of the shell 21;
the first differential signal pin 23 and the second differential signal pin 24 are respectively arranged in a pair of differential signal pin jacks of a unit seat of the plastic base 26, and the two grounding pins 22 are respectively arranged in grounding pin jacks of a unit seat of the plastic base 26;
the number of the shielding cables 29 of each unit seat is two, the shielding cables are arranged on the boss 261 of the plastic base 26 and located on two sides of the baffle 262, and the wire cores 294 are respectively connected with the first differential signal pin 23 and the second differential signal pin 24;
the shielding sheets 28 are two sheets of mirror images arranged on the upper and lower sides of the shielding cables 29, the protrusions 282 of the two shielding sheets 28 surround the insulating layers 293 of the two shielding cables 29, the recesses 281 on the two sides are respectively connected with the two grounding pins 22, and the elastic sheets 284 of the shielding sheets 28 are connected with the shielding layers 292 of the two shielding cables 29.
The invention works as follows:
referring to fig. 1, 2 and 7, the housing 21, the plastic base 26, the ground pin 22, the first differential signal pin 23, the second differential signal pin 24, the shielding plate 28 and the shielding cable 29 form a plug or a socket of the connector, and are connected to the mating terminal 11 through the connecting flange of the housing 21. The plastic base 26 and the shell 21 of the invention are expanded according to the unit seat, which is convenient for the design and manufacture of a plurality of pairs of differential signal connectors, namely completing the connection of a plurality of pairs of differential signals.
Referring to fig. 1, 2, 5, and 6, the shielding plate 28 of the present invention is formed by two pieces of mirror image arranged on the upper and lower sides of the shielding cable 29, the protrusion 282 of each rectangular unit wave of the shielding plate 28 surrounds the insulating layer 293 of the two shielding cables 29, the recesses 281 on both sides are respectively welded to the two grounding pins 22 by laser welding, and the elastic sheet 284 of the shielding plate 28 is welded to the shielding layer 292 of the two shielding cables 29 by laser welding.
Referring to fig. 1, 2, 3 and 4, in order to improve the contact reliability between the two shielding cables 29 and the first differential signal pin 23 and the second differential signal pin 24, respectively, and overcome the problem of large signal crosstalk of the connector, the plastic base 26 of the present invention is provided with a boss 261 and a baffle 262, and during connection, the two shielding cables 29 of each unit seat are respectively arranged on the boss 261 of the plastic base 26 and are separated at two sides by the baffle 262. According to the invention, the shielding sheet 28, the grounding pin 22 and the shielding layer of the shielding cable 29 are interconnected to form a completely surrounded shielding structure, and the two shielding cables 29 are separated by the baffle 262 of the plastic base 26, so that the defect of poor contact reliability among the shielding cable 29, the first differential signal pin 23 and the second differential signal pin 24 is avoided, the problem of large signal crosstalk of the connector is effectively overcome, and the purpose of improving high-speed performance index is achieved.
Referring to fig. 1, 2, 3 and 4, the first differential signal pin 23 and the second differential signal pin 24 of the present invention are respectively disposed in a pair of differential signal pin insertion holes of a unit seat of a plastic base 26, and two ground pins 22 are respectively disposed in ground pin insertion holes of a unit seat of the plastic base 26, and the first differential signal pin 23, the second differential signal pin 24 and the two ground pins 22 of the plurality of units of the present invention are formed with the plastic base 26 by injection molding at one time.
Claims (1)
1. A cable connecting structure of a high-speed connector is characterized by comprising a shell (21), a plastic base (26), a grounding pin (22), a first differential signal pin (23), a second differential signal pin (24), a shielding sheet (28) and a shielding cable (29);
the shell (21) is a shell part internally provided with a base cavity and externally provided with a connecting flange;
the plastic base (26) is sequentially provided with a plurality of unit seats, each unit seat is provided with four pin jacks side by side, the middle part of each unit seat is provided with a pair of differential signal pin jacks, two sides of each unit seat are respectively provided with a ground pin jack, and the orifices of the pair of differential signal pin jacks on the plastic base (26) are provided with bosses (261) and baffles (262);
the shielding sheet (28) is a long sheet-shaped piece, a plurality of rectangular unit waves are sequentially folded along the length direction, and each rectangular unit wave on the shielding sheet (28) corresponds to each unit seat on the plastic base (26) in sequence;
the unit wave of the shielding sheet (28) is composed of a bulge (282) in the middle and concave parts (281) on two sides, and an outward extending elastic sheet (284) is arranged on the bulge (282);
the shielding cable (29) is provided with a wire core (294), an insulating layer (293), a shielding layer (292) and a protective layer;
the plastic base (26) is arranged in a base cavity of the shell (21);
the first differential signal pins (23) and the second differential signal pins (24) are respectively arranged in a pair of differential signal pin jacks of a unit seat of the plastic base (26), and the two grounding pins (22) are respectively arranged in grounding pin jacks of a unit seat of the plastic base (26);
the shielding cables (29) of each unit seat are two and are arranged on the boss (261) of the plastic base (26) and positioned on two sides of the baffle (262), and the wire cores (294) are respectively connected with the first differential signal pin (23) and the second differential signal pin (24);
the shielding sheets (28) are arranged on the upper side and the lower side of the shielding cable (29) in a mirror image mode, protrusions (282) of the two shielding sheets (28) surround insulating layers (293) of the two shielding cables (29), concave portions (281) on the two sides are respectively connected with the two grounding pins (22), and elastic sheets (284) of the shielding sheets (28) are connected with shielding layers (292) of the two shielding cables (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010662089.3A CN111755911B (en) | 2020-07-10 | 2020-07-10 | Cable connecting structure of high-speed connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010662089.3A CN111755911B (en) | 2020-07-10 | 2020-07-10 | Cable connecting structure of high-speed connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111755911A CN111755911A (en) | 2020-10-09 |
| CN111755911B true CN111755911B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010662089.3A Active CN111755911B (en) | 2020-07-10 | 2020-07-10 | Cable connecting structure of high-speed connector |
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| Country | Link |
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| CN (1) | CN111755911B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036539B (en) * | 2021-03-04 | 2023-07-28 | 安费诺电子装配（厦门）有限公司 | Wire end connector and connector assembly |
| CN113193440B (en) * | 2021-04-28 | 2023-01-13 | 四川华丰科技股份有限公司 | Connector assembly |
| CN113193401B (en) * | 2021-05-17 | 2022-07-08 | 上海航天科工电器研究院有限公司 | High-density multi-core rectangular coaxial cable connector plug |
| CN117096677A (en) * | 2022-05-11 | 2023-11-21 | 华为技术有限公司 | Connector assembly, interconnection system and server cluster |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6969268B2 (en) * | 2002-06-11 | 2005-11-29 | Molex Incorporated | Impedance-tuned terminal contact arrangement and connectors incorporating same |
| CN201112820Y (en) * | 2007-10-12 | 2008-09-10 | 谭顺福 | L-shaped USB plug |
| CN201285897Y (en) * | 2007-08-13 | 2009-08-05 | 富士康(昆山)电脑接插件有限公司 | Cable connector component |
| CN101697385A (en) * | 2009-11-05 | 2010-04-21 | 天津有容蒂康通讯技术有限公司 | Method for connecting cable shielding layer with metal terminal shell |
| CN203445376U (en) * | 2013-09-02 | 2014-02-19 | 陈碇祈 | Improved structure of USB electric connector |
-
2020
- 2020-07-10 CN CN202010662089.3A patent/CN111755911B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6969268B2 (en) * | 2002-06-11 | 2005-11-29 | Molex Incorporated | Impedance-tuned terminal contact arrangement and connectors incorporating same |
| CN201285897Y (en) * | 2007-08-13 | 2009-08-05 | 富士康(昆山)电脑接插件有限公司 | Cable connector component |
| CN201112820Y (en) * | 2007-10-12 | 2008-09-10 | 谭顺福 | L-shaped USB plug |
| CN101697385A (en) * | 2009-11-05 | 2010-04-21 | 天津有容蒂康通讯技术有限公司 | Method for connecting cable shielding layer with metal terminal shell |
| CN203445376U (en) * | 2013-09-02 | 2014-02-19 | 陈碇祈 | Improved structure of USB electric connector |
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| Publication number | Publication date |
|---|---|
| CN111755911A (en) | 2020-10-09 |
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