CN115588536A - High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof - Google Patents

High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof Download PDF

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Publication number
CN115588536A
CN115588536A CN202211284232.5A CN202211284232A CN115588536A CN 115588536 A CN115588536 A CN 115588536A CN 202211284232 A CN202211284232 A CN 202211284232A CN 115588536 A CN115588536 A CN 115588536A
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CN
China
Prior art keywords
point positions
pairs
wiring point
pair
wire
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Pending
Application number
CN202211284232.5A
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Chinese (zh)
Inventor
董长星
杨昆
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Tianjin Xunlian Automation Technology Co ltd
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Tianjin Xunlian Automation Technology Co ltd
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Priority to CN202211284232.5A priority Critical patent/CN115588536A/en
Publication of CN115588536A publication Critical patent/CN115588536A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26

Abstract

The invention provides a high-frequency high-speed transmission assembly with low near-end crosstalk and a connection method thereof, belongs to the technical field of network communication, and solves the problem that the existing near-end crosstalk resisting plug is high in cost. The high-frequency high-speed transmission assembly with low near-end crosstalk comprises a wire and a connector; the connector comprises more than 8 wiring points; the wire comprises 4 groups of twisted pairs, a shielding layer is wrapped outside the 4 groups of twisted pairs, and an insulating sheath is wrapped outside the shielding layer; each group of twisted pairs is respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, and a connecting line between any pair of wiring point positions is vertical to a connecting line between the adjacent pair of wiring point positions.

Description

High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof
Technical Field
The invention relates to the technical field of network communication, in particular to a high-frequency and high-speed transmission assembly with low near-end crosstalk and a connection method thereof.
Background
With the continuous progress of communication technology, communication networks have covered various fields such as industry, science and technology, and life. In industrial field communications, near-end crosstalk (NEXT) is a measure of a performance parameter of a single link/channel, measuring the signal coupling from one pair of lines to another. The value of the near-end crosstalk affects the communication quality of the user, and the user can use the value as a main performance index to measure whether the communication component is qualified or not.
In order to solve the NEXT problem, at present, foreign and domestic plug manufacturers adopt a special core pin arrangement structure to solve the problem, such as: an eeg.2b.514 type 8-core plug, or an M12X type 8-core plug. However, for many applications, the large-scale use of special plugs requires a large investment and is costly.
Disclosure of Invention
The invention aims to provide a high-frequency high-speed transmission assembly with low near-end crosstalk and a connection method thereof, which solve the problem that the cost of the conventional near-end crosstalk resisting plug is high.
In a first aspect, the present invention provides a high frequency and high speed transmission assembly with low near end crosstalk, comprising a wire and a connector;
the connector comprises more than 8 wiring points;
the wire comprises 4 groups of twisted pairs, wherein a shielding layer wraps the 4 groups of twisted pairs, and an insulating sheath wraps the shielding layer;
each group of twisted pairs is respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, and a connecting line between any pair of wiring point positions is vertical to a connecting line between the adjacent pair of wiring point positions.
Further, a peeling area is formed at one end, close to the connector, of the wire, the shielding layer and the insulating outer skin of the peeling area are peeled off, and the length of the peeling area is smaller than 13mm.
Furthermore, each group of twisted pairs comprises two signal wires, and each signal wire comprises an oxygen-free copper core and an insulating layer wrapped outside the oxygen-free copper core.
Furthermore, the cross section area of the oxygen-free copper core is 0.14mm 2 。
In a second aspect, the present invention further provides a method for connecting a high-frequency high-speed transmission assembly with low near-end crosstalk, including:
stripping a part of the shielding layer and the insulating outer skin of the wire to form a stripping area;
dividing 4 pairs of wiring points from a plurality of wiring points of the connector, wherein a connecting line between any pair of wiring points is vertical to a connecting line between the adjacent pair of wiring points;
4 groups of twisted pairs of the wire are respectively connected with 4 pairs of wiring points.
Further, the step of connecting 4 groups of twisted pairs of the wire with 4 pairs of connection points respectively includes:
and respectively connecting 4 groups of twisted pairs of the wire with 4 pairs of wiring points in a welding, crimping or screw connection mode.
Further, the length of the peeling area is less than 13mm.
Furthermore, each group of twisted pairs comprises two signal wires, each signal wire comprises an oxygen-free copper core and an insulating layer wrapped outside the oxygen-free copper core, and the sectional area of each oxygen-free copper core is 0.14mm 2 。
The high-frequency high-speed transmission assembly with low near-end crosstalk and the connection method thereof can be applied to non-special connectors and non-standard connectors. A network communication wire typically includes 4 twisted pairs, 8 signal lines, corresponding to 8 connection points on a connector. When in connection, each group of twisted-pair lines are respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, the connecting line between any pair of wiring point positions is perpendicular to the connecting line between the adjacent pair of wiring point positions by adjusting the arrangement position between the pair of wiring points and adopting a spiral connection mode, so that the adjacent twisted-pair lines are mutually perpendicular, the NEXT value can be obviously improved, the use requirement of being applied to high-speed high-frequency communication transmission data is met, the high connection cost of connecting by using a special plug is reduced, and the cost is obviously reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a connector of a high-frequency high-speed transmission assembly with low near-end crosstalk according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a wire of a high-frequency high-speed transmission assembly with low near-end crosstalk according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the allocation of endpoint locations in an embodiment of the present invention;
fig. 4 is a flowchart of a connection method of a high-frequency high-speed transmission assembly with low near-end crosstalk according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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.
The terms "comprising" and "having," and any variations thereof, as used in connection with the present embodiments, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention provides a high-frequency high-speed transmission assembly with low near-end crosstalk, which comprises a wire and a connector.
As shown in FIG. 1, the connector includes more than 8 connection sites 10, in this embodiment 12 connectionsThe point is taken as an example for illustration. As shown in fig. 2, the wire includes 4 twisted pairs 20, and the 4 twisted pairs 20 are typically surrounded by a shield that is surrounded by an insulating sheath. Each group of twisted pair in the network communication wire comprises two signal wires, each signal wire comprises an oxygen-free copper core and an insulating layer wrapped outside the oxygen-free copper core, and the sectional area of the oxygen-free copper core is 0.14mm 2 . The insulation of the 4 twisted pairs is typically functionally differentiated by a fixed color scheme, such as orange and orange for the first set, green and white for the second set, blue and white for the third set, and brown for the fourth set.
Each group of twisted pairs is respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, and a connecting line between any pair of wiring point positions is vertical to a connecting line between the adjacent pair of wiring point positions. The specific connection mode is as shown in fig. 1 and 3, the first pair of connection point locations in the connector are No. 1 and No. 3 connection point locations, and are correspondingly connected with the first set of twisted pairs; the second pair of the termination points are No. 6 and No. 10 termination points and are correspondingly connected with the second group of twisted pairs; the first pair of the wiring point positions are 9-numbered and 12-numbered wiring point positions and are correspondingly connected with the third group of twisted pairs; the first pair of connection point positions are No. 2 and No. 5 connection point positions and are correspondingly connected with the fourth group of twisted-pair lines; the remaining 4 termination points are free.
As can be seen from the dashed box in fig. 1, the connecting line between the first pair of the termination points is perpendicular to the connecting line between the second pair and the fourth pair of the termination points; similarly, the line between the second pair of endpoint locations is perpendicular to the line between the first and third pairs of endpoint locations; the connecting line between any pair of the wiring point positions is perpendicular to the connecting line between the adjacent pair of the wiring point positions.
In one possible embodiment, the wire is formed with a peeling area near one end of the connector, and the shielding layer and the insulating sheath of the peeling area are peeled off. The stripping area is the part of the twisted pair which is exposed, and the length of the stripping area is less than 13mm.
An embodiment of the present invention further provides a connection method for a high-frequency and high-speed transmission assembly with low near-end crosstalk, as shown in fig. 4, the method includes the following steps:
s1: and stripping a part of the shielding layer and the insulating sheath of the wire to form a stripping area.
The twisted pairs 20 are typically externally wrapped with a shield that is externally wrapped with an insulating jacket. The peeling size of the wire is less than 13mm, and the wire is connected and can be twisted again when necessary.
S2: among the plurality of termination points of the connector, 4 pairs of termination points are defined, and a connecting line between any pair of termination points is perpendicular to a connecting line between an adjacent pair of termination points.
The embodiment of the invention can be applied to the condition that the plug is not a special standard plug, and the opening size of the twisted wire is reduced or the twisted wire is encrypted again by adjusting the arrangement position between the twisted wire pairs and adopting a spiral connection mode. The twisted wire pairs are arranged in a vertical structure and have specific corresponding wiring positions.
Each group of twisted pair wires comprises two signal wires, each signal wire comprises an oxygen-free copper core and an insulating layer wrapped outside the oxygen-free copper core, and the sectional area of the oxygen-free copper core is 0.14mm 2 . As shown in fig. 1 and 3, the first pair of termination points in the connector are No. 1 and No. 3 termination points, and are correspondingly connected to the first set of twisted pairs; the second pair of the termination points are No. 6 and No. 10 termination points and are correspondingly connected with the second group of twisted pairs; the first pair of the wiring point positions are 9-numbered and 12-numbered wiring point positions and are correspondingly connected with the third group of twisted pairs; the first pair of connection point positions are No. 2 and No. 5 connection point positions and are correspondingly connected with the fourth group of twisted pairs; the remaining 4 termination points are free, such that the connection between any pair of termination points is perpendicular to the connection between an adjacent pair of termination points.
S3: 4 groups of twisted pairs of the wire are respectively connected with 4 pairs of wiring points.
Specifically, 4 groups of twisted pairs of wires are respectively connected with 4 pairs of wiring points in a welding, crimping or screw connection mode.
The high-frequency high-speed transmission assembly with low near-end crosstalk and the connection method thereof provided by the embodiment of the invention can be applied to non-special connectors and non-standard connectors. A network communication wire typically includes 4 sets of twisted pairs, for 8 signal lines, corresponding to 8 termination points on the connector. When in connection, each group of twisted pairs is respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, and the connecting line between any pair of wiring point positions is perpendicular to the connecting line between the adjacent pair of wiring point positions by adjusting the arrangement position between the pair of wires and adopting a spiral connection mode, so that the adjacent twisted pairs are perpendicular to each other, and the NEXT value can be obviously improved.
The NEXT value, expressed in decibels (dB), varies with the transmission frequency, with higher frequencies producing greater interference. The larger the dB value, the less crosstalk the disturbed link/channel experiences. The NEXT value test is carried out on the high-frequency high-speed transmission assembly provided by the embodiment of the invention by using the NEXT test equipment, and the test result is 11.2dB.
The embodiment of the invention solves the problem of high-quality transmission of the conventional multi-core connector applied to high-speed high-frequency communication in the market, obviously improves the near-end crosstalk NEXT value and meets the use requirement. The embodiment of the invention breaks through the technical barriers and price monopolies of the high-frequency high-speed special plug, and the wiring position of most common plugs is adjusted according to requirements during wiring, so that the opening size of a stranded wire is reduced or the stranded wire is twisted again, the near-end crosstalk NEXT value is improved, the use requirement of high-speed high-frequency communication transmission data can be met, the high connection cost of the special plug is reduced, and the cost is obviously reduced.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, 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 a specific case to those of ordinary skill in the art.

Claims (8)

1. A high-frequency high-speed transmission assembly with low near-end crosstalk comprises a wire and a connector;
the connector comprises more than 8 wiring points;
the wire comprises 4 groups of twisted pairs, wherein a shielding layer wraps the 4 groups of twisted pairs, and an insulating sheath wraps the shielding layer;
each group of twisted pairs is respectively connected with two adjacent wiring point positions to form 4 pairs of wiring point positions, and a connecting line between any pair of wiring point positions is vertical to a connecting line between the adjacent pair of wiring point positions.
2. The low near-end crosstalk, high frequency, high speed transmission assembly according to claim 1, wherein said wire is formed with a stripped region near one end of said connector, wherein a shielding layer and an insulating sheath of said stripped region are stripped, and a length of said stripped region is less than 13mm.
3. The low near-end crosstalk, high frequency, high speed transmission assembly according to claim 1, wherein each set of twisted pairs comprises two signal lines, each signal line comprising an oxygen-free copper core and an insulating layer wrapped around the oxygen-free copper core.
4. A low-thc high frequency high speed transmission assembly according to claim 3, wherein the oxygen-free copper core has a cross-sectional area of 0.14mm 2 。
5. A method for connecting a high frequency, high speed transmission assembly with low near end crosstalk, comprising:
stripping a part of the shielding layer and the insulating outer skin of the wire to form a stripping area;
dividing 4 pairs of wiring point positions from a plurality of wiring point positions of the connector, wherein a connecting line between any pair of wiring point positions is vertical to a connecting line between the adjacent pair of wiring point positions;
4 twisted pairs of wires are connected to 4 pairs of termination points, respectively.
6. The method of claim 5, wherein the step of connecting 4 sets of twisted pairs of wires to 4 pairs of termination points, respectively, comprises:
and respectively connecting 4 groups of twisted pairs of the wire with 4 pairs of wiring points in a welding, crimping or screw connection mode.
7. The method of joining according to claim 5, wherein the length of the peeling area is less than 13mm.
8. The method of claim 5, wherein each twisted pair comprises two signal lines, each signal line comprising an oxygen-free copper core and an insulating layer wrapped around the oxygen-free copper core, the oxygen-free copper core having a cross-sectional area of 0.14mm 2 。
CN202211284232.5A 2022-10-20 2022-10-20 High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof Pending CN115588536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211284232.5A CN115588536A (en) 2022-10-20 2022-10-20 High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211284232.5A CN115588536A (en) 2022-10-20 2022-10-20 High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof

Publications (1)

Publication Number Publication Date
CN115588536A true CN115588536A (en) 2023-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211284232.5A Pending CN115588536A (en) 2022-10-20 2022-10-20 High-frequency high-speed transmission assembly with low near-end crosstalk and connection method thereof

Country Status (1)

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