CN113871973A - High-speed connector with low crosstalk - Google Patents
High-speed connector with low crosstalk Download PDFInfo
- Publication number
- CN113871973A CN113871973A CN202111209468.8A CN202111209468A CN113871973A CN 113871973 A CN113871973 A CN 113871973A CN 202111209468 A CN202111209468 A CN 202111209468A CN 113871973 A CN113871973 A CN 113871973A
- Authority
- CN
- China
- Prior art keywords
- differential signal
- transmission module
- shielding cover
- metal shielding
- mounting base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000008054 signal transmission Effects 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical group [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a high-speed connector with low crosstalk, which relates to the technical field of connectors and specifically comprises a mounting base, wherein a signal transmission module A and a signal transmission module B are respectively inserted into two ends of the mounting base, the signal transmission module A comprises a plastic package shell A, a differential signal lead A, a differential signal terminal A and a metal shielding cover A, the metal shielding cover A is fixedly connected to one side, close to the mounting base, of the plastic package shell A, and the metal shielding cover A is internally provided with through cavities A, the number of which is more than or equal to one. The effect of reducing crosstalk between differential signal pairs is achieved by arranging the metal shielding cover A and the metal shielding cover B which are in contact with each other on the signal transmission module A and the signal transmission module B, and the problem that the effect is poor and satisfactory in the aspect of reducing crosstalk at present is solved by mainly increasing wiring distance, reducing the distance between the shielding cover and the differential signal pairs, reducing coupling length and the like.
Description
Technical Field
The invention relates to a connector, in particular to a high-speed connector with low crosstalk.
Background
In recent years, with the continuous update and iteration of communication technology, the requirement on the signal integrity of the connector is higher and higher, and particularly, the 5G era comes, the trend of large-scale application of high-speed connectors is more and more obvious, the application range is wider and the speed requirement is higher and more. As the speed requirements for connectors increase, the signal integrity problem becomes more problematic, with crosstalk between differential signal pairs being one of the problematic issues.
At present, in the aspect of reducing crosstalk, the crosstalk is mainly reduced by increasing the wiring distance, reducing the distance between the shielding case and the differential signal pair, reducing the coupling length and the like.
Disclosure of Invention
It is an object of the present invention to provide a high speed connector with low crosstalk to solve the above problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the high-speed connector with low crosstalk comprises a mounting base, wherein a signal transmission module A and a signal transmission module B are respectively inserted into two ends of the mounting base, the signal transmission module A comprises a plastic package shell A, a differential signal wire A, a differential signal terminal A and a metal shielding cover A, the metal shielding cover A is fixedly connected to one side, close to the mounting base, of the plastic package shell A, the metal shielding cover A is internally provided with through cavities A with the number larger than or equal to one, one end of the differential signal wire A is movably connected to the inside of the through cavities A, the differential signal wire A is fixedly connected to the inside of the plastic package shell A, the differential signal terminal A is fixedly connected to one end, far away from the metal shielding cover A, of the differential signal wire A, the surface of the metal shielding cover A and one end, close to the mounting base, of the differential signal wire A are inserted into the end face of the mounting base, and the signal transmission module B comprises a plastic package shell B, a, Differential signal wire B, differential signal terminal B and metal shielding cover B, metal shielding cover B fixed connection is in the one side that plastic envelope casing B is close to the mount pad, metal shielding cover B's inside is provided with the logical chamber B of a quantity more than or equal to a quantity, and differential signal wire B's one end swing joint is in the inside that leads to chamber B, differential signal wire B fixed connection is in plastic envelope casing B's inside, differential signal terminal B fixed connection is in the one end that metal shielding cover B was kept away from to differential signal wire B, metal shielding cover B's surface and differential signal wire B are close to the one end of mount pad and are pegged graft with the terminal surface of mount pad.
As a further scheme of the invention: the signal transmission module A and the signal transmission module B have different structures, the differential signal terminals A on the signal transmission module A are adjacent in narrow sides (edge coupling) or adjacent in wide sides (wide side coupling), and the differential signal terminals A on the signal transmission module A are adjacent in wide sides (wide side coupling) or adjacent in narrow sides (edge coupling).
As a further scheme of the invention: the plane of the signal differential terminal A on the signal transmission module A and the plane of the signal differential terminal B on the signal transmission module B are perpendicular to each other.
As a further scheme of the invention: the number of the plastic package shell A and the number of the plastic package shell B are both more than or equal to one, and the number of the differential signal wires A and the number of the differential signal terminals A are matched with the number of the plastic package shell A and the number of the through cavities.
As a further scheme of the invention: and the side surface of the mounting base is fixedly connected with an antiskid block.
As a still further scheme of the invention: and the surfaces of the ends, far away from the mounting base, of the plastic package shell A and the plastic package shell B are movably sleeved with branch prevention covers.
Compared with the prior art, the invention has the beneficial effects that:
the metal shielding cover A and the metal shielding cover B which are in contact are arranged on the signal transmission module A and the signal transmission module B, the peripheries of the edge coupling differential signal terminal A, the differential signal terminal B and the broadside coupling differential signal terminal at the two ends of the mounting base are completely wrapped, the capacitive coupling and the inductive coupling between the differential signal terminals A and between the differential signal terminals B are reduced, the effect of reducing the crosstalk between differential signal pairs is achieved, and the problem that the effect is poor in satisfaction, which is mainly realized by increasing the wiring distance, reducing the distance between the shielding cover and the differential signal pairs, reducing the coupling length and the like in the aspect of reducing the crosstalk at present, is solved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a high-speed connector with low crosstalk.
Fig. 2 is a schematic diagram of an overall structure of a signal transmission module a in a high-speed connector with low crosstalk.
Fig. 3 is a schematic diagram of the overall structure of a signal transmission module B in a high-speed connector with low crosstalk.
Fig. 4 is a schematic diagram of the overall structure of the anti-split cover in a high-speed connector with low crosstalk.
As shown in the figure: 1. mounting a base; 2. a signal transmission module A; 21. plastic packaging a shell A; 22. a differential signal conductor A; 23. a differential signal terminal A; 24. a metal shield case A; 3. a signal transmission module B; 31. plastic packaging a shell B; 32. a differential signal wire B; 33. a differential signal terminal B; 34. a metal shield case B; 4. anti-skid blocks; 5. and (4) a separation prevention cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, in an embodiment of the present invention, a high-speed connector with low crosstalk includes a mounting base 1, an anti-slip block 4 is fixedly connected to a side surface of the mounting base 1, so as to enhance anti-slip performance of the position and prevent sliding during manual operation, a signal transmission module a2 and a signal transmission module B3 are respectively inserted into two ends of the mounting base 1, the signal transmission module a2 and the signal transmission module B3 are m modules with the same performance, so as to be named for convenience of distinction, the signal transmission module a2 and the signal transmission module B3 have different structures, a differential signal terminal a23 on the signal transmission module a2 is coupled between adjacent edges with narrow sides or coupled between adjacent edges with wide sides, a differential signal terminal a23 on the signal transmission module a2 is coupled between adjacent edges with wide sides or coupled between adjacent edges with narrow sides, a plane where the signal differential terminal a on the signal transmission module a2 is located and a plane where the signal differential terminal B3 is located Are perpendicular to each other.
The signal transmission module A2 includes plastic package casing A21, differential signal wire A22, differential signal terminal A23 and metal shielding case A24, metal shielding case A24 fixed connection is in the one side that plastic package casing A21 is close to the mounting base 1, the inside of metal shielding case A24 is provided with the logical chamber A that a quantity is more than or equal to a quantity, and the one end swing joint of differential signal wire A22 is in the inside of logical chamber A, differential signal wire A22 fixed connection is in the inside of plastic package casing A21, differential signal terminal A23 fixed connection is in the one end that differential signal wire A22 keeps away from metal shielding case A24, the terminal surface of metal shielding case A24 and the one end that differential signal wire A22 is close to the mounting base 1 are pegged graft with the terminal surface of mounting base 1.
The signal transmission module B3 comprises a plastic package housing B31, a differential signal wire B32, a differential signal terminal B33 and a metal shielding cover B34, wherein the metal shielding cover B34 is fixedly connected to one side, close to the mounting base 1, of the plastic package housing B31, the interior of the metal shielding cover B34 is provided with through cavities B, the number of the through cavities B is more than or equal to one, one end of the differential signal wire B32 is movably connected to the interior of the through cavities B, the differential signal wire B32 is fixedly connected to the interior of the plastic package housing B31, the differential signal terminal B33 is fixedly connected to one end, far away from the metal shielding cover B34, of the differential signal wire B32, and the surface of the metal shielding cover B34 and one end, close to the mounting base 1, of the differential signal wire B32 are plugged with the end face of the mounting base 1.
The number of the plastic package shell A21 and the number of the plastic package shell B31 are all more than or equal to one, the number of the differential signal wires A22 and the differential signal terminals A23 are matched with the number of the plastic package shell A21 and the number of the through cavities, a plurality of groups of plastic package shells A21 and a plurality of groups of plastic package shells B31 are arranged in parallel, a separation prevention cover 5 is movably sleeved on the surface of one end, far away from the mounting base 1, of each of the plastic package shells A21 and the plastic package shells B31, the separation prevention cover 5 covers the plastic package shells A21, and the plastic package shells A21 at the position are prevented from being separated.
The working principle of the invention is as follows:
when in use, the differential signal lead A22 is arranged inside the plastic package housing A21, then one through cavity A on the metal shielding cover A24 corresponds to one end of a group of differential signal leads A22, so that the periphery of the end face of the differential signal lead A22 is wrapped, then the other end of the differential signal lead A22 is fixed on a differential signal terminal A23, the adjacent broadsides of the differential signal terminal A23 are coupled or the adjacent edges of the narrow sides are coupled, then the signal transmission module A2 is inserted on the mounting base 1 through the metal shielding cover A24, the other group of signal transmission modules B3 is assembled according to the operations, thereby realizing that the metal shielding cover A24 and the metal shielding cover B34 wrap the periphery of the differential signal lead A22 and the differential signal lead B32, reducing the capacitive coupling and inductive coupling between the differential signal terminals A23 and the differential signal terminals B33, and reducing the capacitive coupling and inductive coupling of crosstalk between differential signal pairs, thereby reducing crosstalk between differential signal pairs.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.
Claims (6)
1. A high-speed connector with low crosstalk comprises a mounting base (1) and is characterized in that a signal transmission module A (2) and a signal transmission module B (3) are respectively inserted into two ends of the mounting base (1), the signal transmission module A (2) comprises a plastic package shell A (21), a differential signal lead A (22), differential signal terminals A (23) and a metal shielding cover A (24), the metal shielding cover A (24) is fixedly connected to one side, close to the mounting base (1), of the plastic package shell A (21), through cavities A with the number larger than or equal to one are formed in the metal shielding cover A (24), one end of the differential signal lead A (22) is movably connected to the inside of the through cavities A, the differential signal lead A (22) is fixedly connected to the inside of the plastic package shell A (21), the differential signal terminals A (23) are fixedly connected to one end, far away from the metal shielding cover A (24), of the differential signal lead A (22), the surface of a metal shielding cover A (24) and one end, close to a mounting base (1), of a differential signal lead A (22) are spliced with the end face of the mounting base (1), a signal transmission module B (3) comprises a plastic package shell B (31), a differential signal lead B (32), differential signal terminals B (33) and a metal shielding cover B (34), the metal shielding cover B (34) is fixedly connected to one side, close to the mounting base (1), of the plastic package shell B (31), through cavities B with the number larger than or equal to one are arranged inside the metal shielding cover B (34), one end of the differential signal lead B (32) is movably connected inside the through cavities B, the differential signal lead B (32) is fixedly connected inside the plastic package shell B (31), the differential signal terminal B (33) is fixedly connected to one end, far away from the metal shielding cover B (34), of the differential signal lead B (32), the surface of the metal shielding cover B (34) and one end of the differential signal lead B (32) close to the mounting base (1) are plugged with the end face of the mounting base (1).
2. The high-speed connector with low crosstalk according to claim 1, wherein the signal transmission module a (2) and the signal transmission module B (3) have different structures, the differential signal terminals a (23) on the signal transmission module a (2) are adjacent in narrow side (edge coupling) or adjacent in wide side (wide side coupling), and the differential signal terminals a (23) on the signal transmission module a (2) are adjacent in wide side (wide side coupling) or adjacent in narrow side (edge coupling).
3. The high-speed connector with low crosstalk according to claim 1, wherein a plane on which the signal differential terminal a of the signal transmission module a (2) is located and a plane on which the signal differential terminal B of the signal transmission module B (3) is located are perpendicular to each other.
4. The high-speed connector with low crosstalk according to claim 1, wherein the number of the plastic package housing a (21) and the number of the plastic package housing B (31) are both greater than or equal to one, and the number of the differential signal conductors a (22) and the number of the differential signal terminals a (23) are matched with the number of the plastic package housing a (21) and the number of the through cavities.
5. A high-speed connector with low crosstalk according to claim 1, characterized in that anti-slip blocks (4) are fixedly connected to the side of the mounting base (1).
6. The high-speed connector with low crosstalk according to claim 1, wherein a separation preventing cover (5) is movably sleeved on the surface of one end of the plastic package shell A (21) and the plastic package shell B (31) far away from the mounting base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209468.8A CN113871973A (en) | 2021-10-18 | 2021-10-18 | High-speed connector with low crosstalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111209468.8A CN113871973A (en) | 2021-10-18 | 2021-10-18 | High-speed connector with low crosstalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113871973A true CN113871973A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111209468.8A Pending CN113871973A (en) | 2021-10-18 | 2021-10-18 | High-speed connector with low crosstalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113871973A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390806A (en) * | 2018-12-12 | 2019-02-26 | 四川华丰企业集团有限公司 | Shielding part, plug connector and connector |
| CN109599726A (en) * | 2017-09-29 | 2019-04-09 | 中航光电科技股份有限公司 | A kind of differential connector component and its differential connector |
| US20200194941A1 (en) * | 2018-12-17 | 2020-06-18 | Oupiin Electronic (Kunshan) Co., Ltd. | High speed connector assembly, socket connector and grounding plate |
| CN111682366A (en) * | 2020-06-19 | 2020-09-18 | 东莞立讯技术有限公司 | Backplane connector assembly |
-
2021
- 2021-10-18 CN CN202111209468.8A patent/CN113871973A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599726A (en) * | 2017-09-29 | 2019-04-09 | 中航光电科技股份有限公司 | A kind of differential connector component and its differential connector |
| CN109390806A (en) * | 2018-12-12 | 2019-02-26 | 四川华丰企业集团有限公司 | Shielding part, plug connector and connector |
| US20200194941A1 (en) * | 2018-12-17 | 2020-06-18 | Oupiin Electronic (Kunshan) Co., Ltd. | High speed connector assembly, socket connector and grounding plate |
| CN111682366A (en) * | 2020-06-19 | 2020-09-18 | 东莞立讯技术有限公司 | Backplane connector assembly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20211231 |