CN110459920B - Differential contact module and differential connector, differential pair shielding structure - Google Patents
Differential contact module and differential connector, differential pair shielding structureDownload PDFInfo
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- CN110459920B CN110459920BCN201811572204.7ACN201811572204ACN110459920BCN 110459920 BCN110459920 BCN 110459920BCN 201811572204 ACN201811572204 ACN 201811572204ACN 110459920 BCN110459920 BCN 110459920B
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- differential
- shielding
- accommodating
- shielding sheets
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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
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
- 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
- H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Description
Technical Field
The invention relates to a differential contact module, a differential connector and a differential pair shielding structure.
Background
The differential connector is mainly used in occasions requiring high-speed and high-quality signal transmission, and mainly comprises a shell and differential contact modules arranged in the shell, wherein each differential contact module comprises an insulator and a contact piece fixedly assembled on the insulator, each contact piece comprises a differential signal pair and a grounding shielding piece, one differential connector usually comprises a plurality of differential contact modules, and the differential contact modules are fixedly arranged in corresponding slots of the shell layer by layer side by side to realize the integration of the differential contact modules.
In the current differential connector, in order to reduce the electromagnetic interference between the differential pair signals of different differential contact modules in the signal transmission process, shielding plates are arranged on one side of some differential contact modules in the routing direction of the differential pairs, for example, a differential module and a fully shielded differential connector using the same are disclosed in chinese patent application No. CN104300315A, wherein the differential module includes an insulator, differential pairs and a grounding pin, a routing shielding member is arranged on at least one side of the insulator, an end shielding member is arranged on at least one side of the differential pairs, and the end shielding member is electrically connected with the routing shielding member. Such connectors only interfere electromagnetically with the differential pairs between two adjacent differential contact modules. In the actual use process, each differential contact module has more than two differential pairs, and the shielding structure form cannot play a role in preventing electromagnetic interference for the two differential pairs in the same differential contact module.
Disclosure of Invention
The invention aims to provide a differential contact module, which aims to solve the problem that the differential contact module in the prior art cannot solve the electromagnetic interference between differential pairs; it is also an object of the present invention to provide a differential connector using the differential contact module; the invention also aims to provide a differential pair shielding structure of the differential contact module.
In order to achieve the purpose, the technical scheme of the differential pair shielding structure is as follows:
differential pair shielding structure, including the shielding piece of two relative laminatings, all be equipped with the holding tank that is used for holding differential signal pair on the opposite flank of two shielding pieces, the holding tank that corresponds on two shielding pieces is buckled and is assembled the formation and be used for holding differential signal pair and cover the accommodation hole with differential signal pair full enclosure.
Further, in order to meet the requirements of more types of connector models, the universality is stronger, the plug end of the accommodating hole is defined to face the front side, the accommodating holes are more than two, and the accommodating holes are arranged side by side at intervals along the up-down direction.
Further, for the convenience of the crimping cooperation with the printed circuit board, the plug end of shielding piece is equipped with the fisheye that is used for with the printed circuit board crimping, and two fisheyes that correspond on two shielding pieces constitute fisheye group, and fisheye group has a plurality ofly, arranges side by side along upper and lower direction interval, the accommodation hole sets up between two adjacent fisheye groups.
Furthermore, for convenience of processing, the fisheyes and the shielding sheets are formed by punching and stretching a plate.
Furthermore, in order to realize the shielding conduction between each differential contact module and the conductive shell, the buckling plates used for propping against the side walls of the slots of the conductive shell extend backwards on the opposite side surfaces of the two shielding plates.
Furthermore, in order to realize shielding conduction and support the shielding structure, the two opposite sides of the socket ends of the two shielding sheets are provided with opposite convex arc-shaped terminals for interference assembly with the conductive shell.
Furthermore, in order to better realize the shielding effect, the shielding sheet is made of a conductive material, a wave-absorbing material or a magnetic material.
The technical scheme of the differential contact module is as follows:
differential contact module, including insulator and differential signal pair, be fixed with the shielding piece of two relative laminatings on the insulator, all be equipped with the holding tank that is used for holding differential signal pair on the opposite flank of two shielding pieces, the holding tank that corresponds on two shielding pieces is buckled and is assembled the formation and be used for holding differential signal pair in order to enclose the accommodation hole that shields differential signal pair entirely.
Further, in order to meet the requirements of more types of connector models, the universality is stronger, the plug end of the accommodating hole is defined to face the front side, the accommodating holes are more than two, and the accommodating holes are arranged side by side at intervals along the up-down direction.
Further, for the convenience of the crimping cooperation with the printed circuit board, the plug end of shielding piece is equipped with the fisheye that is used for with the printed circuit board crimping, and two fisheyes that correspond on two shielding pieces constitute fisheye group, and fisheye group has a plurality ofly, arranges side by side along upper and lower direction interval, the accommodation hole sets up between two adjacent fisheye groups.
Furthermore, for convenience of processing, the fisheyes and the shielding sheets are formed by punching and stretching a plate.
Further, in order to achieve relatively independent shielding of each differential signal pair, the differential signal pair is formed by two signal contacts respectively arranged in the corresponding receiving grooves of the two shielding plates and supported and attached by the receiving grooves.
Furthermore, in order to realize the shielding conduction between each differential contact module and the conductive shell, the buckling plates used for propping against the side walls of the slots of the conductive shell extend backwards on the opposite side surfaces of the two shielding plates.
Furthermore, in order to realize shielding conduction and support the shielding structure, the two opposite sides of the socket ends of the two shielding sheets are provided with opposite convex arc-shaped terminals for interference assembly with the conductive shell.
Furthermore, in order to better realize the shielding effect, the shielding sheet is made of a conductive material, a wave-absorbing material or a magnetic material.
Furthermore, in order to realize the relative fixation of the shielding sheet and the insulator, a clamping groove extending in the front-back direction is formed in the insulator, and the shielding sheet is embedded in the clamping groove to realize the fixed assembly with the insulator.
The technical scheme of the differential connector is as follows:
differential connector, including casing and the differential contact module of setting in the casing, differential contact module includes insulator and differential signal pair, is fixed with the shielding piece of two relative laminatings on the insulator, all is equipped with the holding tank that is used for holding differential signal pair on the opposite flank of two shielding pieces, and the holding tank that corresponds on two shielding pieces is buckled and is assembled the formation and be used for holding differential signal pair in order to enclose the holding hole that shields differential signal pair entirely.
Further, in order to meet the requirements of more types of connector models, the universality is stronger, the plug end of the accommodating hole is defined to face the front side, the accommodating holes are more than two, and the accommodating holes are arranged side by side at intervals along the up-down direction.
Further, for the convenience of the crimping cooperation with the printed circuit board, the plug end of shielding piece is equipped with the fisheye that is used for with the printed circuit board crimping, and two fisheyes that correspond on two shielding pieces constitute fisheye group, and fisheye group has a plurality ofly, arranges side by side along upper and lower direction interval, the accommodation hole sets up between two adjacent fisheye groups.
Furthermore, for convenience of processing, the fisheyes and the shielding sheets are formed by punching and stretching a plate.
Further, in order to achieve relatively independent shielding of each differential signal pair, the differential signal pair is formed by two signal contacts respectively arranged in the corresponding receiving grooves of the two shielding plates and supported and attached by the receiving grooves.
Furthermore, in order to realize the shielding conduction between each differential contact module and the conductive shell, the buckling plates used for propping against the side walls of the slots of the conductive shell extend backwards on the opposite side surfaces of the two shielding plates.
Furthermore, in order to realize shielding conduction and support the shielding structure, the two opposite sides of the socket ends of the two shielding sheets are provided with opposite convex arc-shaped terminals for interference assembly with the conductive shell.
Furthermore, in order to better realize the shielding effect, the shielding sheet is made of a conductive material, a wave-absorbing material or a magnetic material.
Furthermore, in order to realize the relative fixation of the shielding sheet and the insulator, a clamping groove extending in the front-back direction is formed in the insulator, and the shielding sheet is embedded in the clamping groove to realize the fixed assembly with the insulator.
The invention has the beneficial effects that: compared with the prior art, the differential contact module has the advantages that the two shielding pieces are arranged and oppositely attached, the attachment surfaces are respectively provided with the accommodating grooves extending in the opposite directions, the two corresponding accommodating grooves are buckled and assembled to form the accommodating holes, and the differential signal pairs are embedded in the accommodating holes, so that the differential signal pairs can be integrally positioned in the accommodating holes from the socket end to the plug end and are completely surrounded and shielded by the two shielding pieces, the two adjacent differential pairs are completely isolated by the shielding pieces, an electromagnetic field between two signal conductors is effectively bound, the leakage of magnetic field energy is reduced, and the interference between signals is reduced. The structure is simpler, and simultaneously, the form of adopting two shielding pieces to paste is more convenient the equipment, and processing is convenient moreover.
Drawings
Fig. 1 is a schematic structural diagram of a differential connector according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the differential contact module of FIG. 1;
FIG. 3 is a schematic view of the structure of FIG. 2 with the insulator removed;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a side view of the shield blades of FIG. 4;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic view of an assembly structure of a differential pair shielding structure and a conductive housing;
fig. 8 is a bottom view of fig. 7.
Description of reference numerals: 1-a differential contact module; 2-shielding buckle plate; 3-an insulator; 4-differential pair shield configuration; 5-differential signal pair; 6-a shielding sheet; 61-fish eyes; 62-accommodating grooves; 63-buckle plate; 64-an arcuate terminal; 7-a conductive housing; 71-jack.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 8, a differential connector 1 according to an embodiment of the present invention includes a housing and a differential contact module 1 disposed in the housing, and a shield clip 2 is fixed to a front plug end of the differential contact module 1. The differential contact module 1 includes aninsulator 3, a differentialpair shielding structure 4 disposed on theinsulator 3, and adifferential signal pair 5 shielded by the differentialpair shielding structure 4. Wherein, for the differentialpair shielding structure 4, in the embodiment, it includes twoshielding sheets 6 extending up and down and attached oppositely fixed on theinsulator 3, the twoshielding sheets 6 have identical structure, and are arranged oppositely in a mirror image manner, the binding surfaces of the twoshielding sheets 6 are both provided withaccommodating grooves 62, the openings of theaccommodating grooves 62 are arranged oppositely, when theshield plate 6 is mounted on theinsulator 3, the receivinggrooves 62 of the twoshield plates 6 are assembled to form a receiving hole for receiving thedifferential signal pair 5, thedifferential signal pairs 5 can be wholly positioned in the accommodating holes from the socket end to the plug end and are completely surrounded and shielded by the twoshielding sheets 6, so that the two adjacent differential pairs are completely isolated by theshielding sheets 6, an electromagnetic field between two signal conductors is effectively restrained, magnetic field energy leakage is reduced, and interference between signals is reduced. The structure is simpler, and simultaneously, the form of adopting twoshielding pieces 6 to paste is more convenient the equipment, and processing is convenient moreover.
In this embodiment, for asingle shield plate 6, one end of thereceiving slot 62 on theshield plate 6 faces forward, the other end faces downward, and the plug end of the correspondingdifferential signal pair 5 faces forward, there are tworeceiving slots 62, the front ends of the tworeceiving slots 62 are arranged at intervals along the up-down direction, there are twodifferential signal pairs 5 in the corresponding single differential contact module 1, and each differential signal pair is formed by two signal contacts respectively disposed in the corresponding receiving slots of the two shield plates and supported by the receiving slots. In this embodiment, the front end of theshielding plate 6 extends forward to formfisheyes 61 for press-connection with the printed board, thefisheyes 61 on twoshielding plates 6 form a fisheye group, the fisheye group is three and is arranged at intervals in the up-down direction, and the twoaccommodating grooves 62 are respectively arranged between twoadjacent fisheyes 61. Thus, the electromagnetic shielding conduction of eachdifferential signal pair 5 can be realized while the stable connection with the printed board is realized.
Meanwhile, in the embodiment, theshielding plate 6 and thecorresponding fish eye 61 are formed by punching and stretching a plate, so that the stability of the whole structure can be ensured, and the shielding plate can be conveniently pressed on a printed board. Meanwhile, the twoshielding sheets 6 are fixed on theinsulator 3, specifically, theinsulator 3 is also divided into a left part and a right part, a clamping groove is correspondingly formed in theinsulator 3, theshielding sheets 6 are fixed in the clamping grooves, and when the two parts of theinsulator 3 are buckled relatively, the twoshielding sheets 6 can be integrally surrounded to realize assembly.
Meanwhile, in order to realize shielding conduction of each shielding structure, in this embodiment, a conductive shell 7 is further configured below theinsulator 3, and ajack 71 which is in fit insertion with each differentialpair shielding structure 4 is arranged on the conductive shell 7, and thejack 71 is a rectangular hole. In order to achieve a relative fixation of the conductive housing 7 to the differentialpair shielding structure 4 and a stable contact conduction. In this embodiment, the opposite side surfaces of the twoshielding plates 6 extend back to form thepinch plates 63 abutting against and contacting the hole walls of theinsertion holes 71 to realize interference fit between theshielding plates 6 and the insertion holes. Meanwhile, arc-shapedterminals 64 which are in interference fit with the hole walls of the jacks and are arranged on two sides of the lower end of the shielding structure, which are back to back and outwards in a protruding mode, are arranged on two opposite sides of the lower end of the shielding structure. This ensures that the shielding structure has two support points which are in stable conduction with the conductive housing 7. And a shielding cavity is formed by a plurality of interference fit between the conductive shell 7 and theshielding sheet 6, so that the interference between signals is reduced.
Meanwhile, in this embodiment, the differential connector includes a plurality of differential contact modules 1, each of the differential contact modules 1 is arranged in the housing of the connector in an array, and meanwhile, the arrangement mode of each of the differential contact modules 1 may be a side-by-side array, or may be implemented in a form of relative staggered arrangement between rows.
In this embodiment, the shieldingplate 6 is made of a conductive material, but in other embodiments, the shielding plate may be made of a wave-absorbing material or a magnetic material.
In the present embodiment, the cross-sectional shapes of the twoaccommodating grooves 62 are both U-shaped, and in other embodiments, the cross-sectional shapes may be arranged in a V-shape.
The embodiment 1 described above is an optimized embodiment of the differential connector of the present invention, and in other embodiments, the structure thereof may be simplified and replaced according to actual situations.
In embodiment 2 of the differential connector of the present invention, in this embodiment, the structure of the differential connector is simplified, and specifically, the differential connector includes a housing and a differential contact module disposed in the housing, the differential contact module includes an insulator and a differential signal pair, two shielding plates attached to each other are fixed on the insulator, receiving grooves for receiving the differential signal pair are disposed on opposite side surfaces of the two shielding plates, and the corresponding receiving grooves on the two shielding plates are buckled and assembled to form receiving holes for receiving the differential signal pair so as to completely surround the differential signal pair.
Through setting up two and relative laminating with the shielding piece, be equipped with the holding tank that extends dorsad respectively on the binding face simultaneously, form the accommodation hole is assembled to two holding tank locks that correspond, hold downthehole inlaying and adorn differential signal pair, it can realize holding the plug end from the socket with differential signal pair whole in the accommodation hole to set up like this, by two shielding piece full enclosure shielding, guarantee all keep apart totally by the shielding piece between two arbitrary adjacent differential pairs, the electromagnetic field between two effectual constraint signal conductors, reduce magnetic field energy and leak, reduce the interference between the signal. The structure is simpler, and simultaneously, the form of adopting two shielding pieces to paste is more convenient the equipment, and processing is convenient moreover.
Inembodiment 3 of the differential connector according to the present invention, as a further improvement over embodiment 2, the plug end defining the receiving hole is directed to the front side, and the receiving holes are two or more, and are arranged in the vertical direction at intervals. The connector has the advantages that the connector meets more types of connector models, the universality is higher, the isolation between a plurality of differential pairs on a single differential contact module is realized, the signal interference between the differential pairs is prevented, and in other embodiments, only one accommodating groove can be arranged on one shielding sheet.
In embodiment 7 of the differential connector according to the present invention, as a further optimization of any one of embodiments 2 to 6, the two shielding plates extend back to back from opposite side surfaces thereof with a clip for abutting against a side wall of the slot of the conductive housing. And the shielding conduction between each differential contact module and the conductive shell and the fixation on the conductive shell are realized. Of course in other embodiments the pinch plate may be provided on the conductive housing.
In embodiment 8 of the differential connector according to the present invention, as a further optimization of any one of embodiments 2 to 6, arc-shaped terminals protruding outward and facing away from each other for interference fit with the conductive housing are provided on opposite sides of the receptacle ends of the two shielding plates. Through the relative interference of arc terminal and electrically conductive casing dress by force, when realizing the shielding and switching on, play stable supporting role to shielding structure. Of course, in other embodiments, a gusset-like structure may be used.
In embodiment 9 of the differential connector according to the present invention, as a further optimization of any one of embodiments 2 to 6, the shielding plate is made of a conductive material, a wave-absorbing material, or a magnetic conductive material. Better shielding effect is realized.
In embodiment 10 of the differential connector according to the present invention, as a further improvement to any one of embodiments 2 to 6, the insulator is provided with a locking groove extending in the front-rear direction, and the shield piece is fitted in the locking groove to be fixedly attached to the insulator. The assembly of the insulator and the shielding sheets is realized, and in other embodiments, a clamping groove may be formed in the insulator, and the two shielding sheets are clamped between two side walls of the clamping groove.
The differential pair shield structure according to the present invention is similar in structure to the differential pair shield structure according to any one of embodiments 1 to 9 of the differential connector described above, and is not developed in detail.
The structure of the differential contact module according to the embodiment of the present invention is identical to that of the differential contact module in any of the above-described embodiments of the differential connector, and the detailed development thereof is omitted.
Claims (10)
Translated fromChineseApplications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018107141333 | 2018-06-29 | ||
| CN201810714133 | 2018-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110459920A CN110459920A (en) | 2019-11-15 |
| CN110459920Btrue CN110459920B (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811572204.7AActiveCN110459920B (en) | 2018-06-29 | 2018-12-21 | Differential contact module and differential connector, differential pair shielding structure |
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| CN (1) | CN110459920B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029857A (en) | 2019-12-24 | 2020-04-17 | 富士康(昆山)电脑接插件有限公司 | electrical connector |
| CN111182778A (en)* | 2019-12-31 | 2020-05-19 | 上海航天科工电器研究院有限公司 | Fully-shielded differential contact module and preparation method thereof |
| CN215645331U (en)* | 2021-02-09 | 2022-01-25 | 中航光电科技股份有限公司 | Shielding piece and bent female connector using same |
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| CN110459920A (en) | 2019-11-15 |
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