CN116780296A - High-speed signal transmission cable and assembly method thereof - Google Patents
High-speed signal transmission cable and assembly method thereof Download PDFInfo
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- CN116780296A CN116780296A CN202310640573.XA CN202310640573A CN116780296A CN 116780296 A CN116780296 A CN 116780296A CN 202310640573 A CN202310640573 A CN 202310640573A CN 116780296 A CN116780296 A CN 116780296A
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Abstract
The application belongs to the technical field of electric technology, and particularly relates to a high-speed signal transmission cable and an assembly method thereof, wherein the high-speed signal transmission cable comprises a cable plug, a connecting wire and equipment; the cable sheath is wrapped on the outermost layer of the cable and used for protecting and fixing the inner layer of the cable; the shielding layer is wrapped on the secondary outer layer of the cable and used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards; the isolating framework clamps a plurality of groups of twisted wires and grounding wires in the grooves and is used for keeping the positions of the twisted wires and the grounding wires fixed; the twisted pairs of wires are twisted anticlockwise at high density and used for reducing the mutual crosstalk of signals; in the cable assembly process, the surface of the cable core conductor is smooth and round, deformation and injury are avoided, and a butt joint point is avoided in the middle of a wire; the wire and the pin are pressed together by adopting the pressing method, so that the data transmission efficiency of the cable is improved, the signal transmission is stable, and the transmission rate can reach 1.5G/s.
Description
Technical Field
The application belongs to the technical field of electricity, and particularly relates to a high-speed signal transmission cable and an assembly method thereof, which are applied to a high-speed digital video signal transmission link of an optoelectronic system.
Background
In general, the photoelectric information system adopts the CameraLink interface technology to transmit high-definition video signals, and the CameraLink interface technology has the inherent characteristics, is increasingly popular in the field of photoelectric communication and plays an irreplaceable role. The CameraLink has wide transmission bandwidth, large data volume of transmitted signals and high frequency, and the cable manufactured by the conventional method can not meet the requirement of 1.5G transmission per second, and is easy to cause interference such as screen flashing, frame loss, transverse line ripple and the like.
Disclosure of Invention
First, the technical problem to be solved
The application aims to solve the technical problems that: how to solve the problems that the cable manufactured by the prior method can not meet the requirement of 1.5G/s of transmission signals and is easy to cause interference such as image screen flash, frame loss, transverse line ripple and the like.
(II) technical scheme
In order to solve the above technical problems, the present application provides a high-speed signal transmission cable, one end of the high-speed signal transmission cable is connected to a camera, the other end is connected to an optical transceiver, the high-speed signal transmission cable is used for transmitting high-speed video signals, the high-speed signal transmission cable includes:
two identical cable plugs arranged in opposite directions and a cable body arranged between the two cable plugs;
each cable plug's respective terminal surface is connected respectively including camera and optical transceiver including equipment, cable plug's respective tail end connection cable body, cable plug includes: a plug housing, a pin holder, and pins;
one end of the contact pin is a contact, the other end of the contact pin is a wire crimping end, and the wire crimping ends of the contact pin are respectively crimped on the ends of the twisted pair wire and the grounding wire of the cable body;
the pins are arranged on the pin fixing device, and the pin fixing device is used for keeping the pins equal in interval and fixed in position; the plug housing is disposed outside the pin holder for securing the pin holder.
Wherein, the cable body includes: the cable comprises a cable sheath, a shielding layer, an isolation framework, a shielding aluminum foil, an insulating film, a plurality of grounding wires and a plurality of groups of twisted wires;
the circumference of the cross section of the cable body is equally divided into a plurality of grooves by the isolation framework, and the number of the grooves, the number of the groups of twisted wires and the number of the grounding wires are correspondingly equal; the group of twisted wires and the corresponding grounding wire are clamped in the corresponding groove, and the groove is used for keeping the positions of the twisted wires and the grounding wire fixed;
one grounding wire is distributed on one side of one group of twisted wires in each groove and is used for absorbing electromagnetic radiation signals and grounding signals;
the contact pins are respectively pressed and connected with two ends of the grounding wire and the twisted pair wire;
the shielding aluminum foil is wrapped on the outer layers of the twisted pair conductor and the grounding conductor and used for preventing electromagnetic waves of signals of the twisted pair conductor from radiating to the periphery and the outer layers; simultaneously isolating other twisted pair wires from radiating electromagnetic waves inwards;
the insulation film is wound on the outer layer of the shielding aluminum foil and used for tightening the shielding aluminum foil, the twisted pair wires and the grounding wires and keeping insulation with the shielding layer;
the shielding layer is arranged on the secondary outer layer of the cable body and used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards;
the cable sheath is arranged on the outermost layer of the cable body and used for protecting and fixing the grounding wire and the twisted pair wire.
Wherein the isolating framework equally divides the circumference of the cross section of the cable into five grooves, and the angle of each groove is 72 ° Five pairs of twisted wires and five grounding wires are clamped in grooves of the isolation framework, and the positions of the five pairs of twisted wires and the five grounding wires are kept fixed.
The pin fixer is provided with 15 hole sites, wherein 3 hole sites are divided into five subareas;
five groups of twisted pair wires and five grounding wires of the pin fixer respectively correspond to the high-speed signal transmission cable.
Wherein, the cable plug still includes: epoxy resin glue;
the contact pin, the contact pin fixer and the plug shell are assembled together and encapsulated by the epoxy resin glue.
Wherein, the cable plug still includes: a cable rear accessory;
the cable rear accessory is mounted on the plug housing and is used for reinforcing the cable plug and the cable body.
Wherein, the grounding wire is composed of a silver plating bare copper wire.
Wherein, the twisted pair of wires adopts two AFR-2500.2 2 The mm oxygen-free copper silver-plated material wire is twisted anticlockwise at high density, the signal anode is a red wire, and the signal cathode is a white wire.
Wherein the twisted pair wires are not equal to each other in lay length;
the length of the high-speed signal transmission cable is 1300+50mm；
The data flow of the transmission signal of the high-speed signal transmission cable reaches 1.5G/s;
the arrangement positions of the twisted pair of wires and the grounding wire in the pin fixer are unique;
the middle of the twisted pair of wires is not provided with an opposite joint;
the resistance value of the twisted pair of wires is not more than 0.12 omega;
the bandwidth of the twisted pair of wires is 300M;
the twisted pair of wires has a lay length not greater than 4 times the diameter of the wires;
the twisted pair of conductors is twisted counterclockwise.
In addition, the application also provides an assembling method of the high-speed signal transmission cable, the method is applied to the high-speed signal transmission cable, and the method comprises the following steps:
step S1, two AFR-2500.2 with red color and white color 2 The mm oxygen-free copper silver-plated material wires are twisted together in a counterclockwise high-density manner to form a twisted pair wire;
step S2, distributing the grounding wires on one side of the twisted pair wires;
s3, aligning the ends of the grounding wire and the twisted pair wire;
s4, wrapping the twisted pair of wires and the grounding wire together by using a shielding aluminum foil, wherein the end head is reserved for 10mm;
s5, winding an insulating film on the outer layer of the shielding aluminum foil, and closing up the insulating film at a position 10mm away from the end head;
s6, stripping the outer skin at the end of the twisted pair conductor by using a wire stripper, and reserving a 4mm conductor;
step S7, crimping the contact pin on the conductor of the end by using crimping pliers;
step S8, repeating the steps S1-S7 to obtain inclusion bodies of a plurality of groups of twisted pair wires and grounding wires;
s9, respectively installing a plurality of groups of twisted wires in grooves of an isolation framework, and keeping the grounding wires and the twisted wires parallel to each other without bending or crossing;
s10, sleeving a shielding layer on the outer layer of the isolation framework;
s11, adopting a nylon fiber braided sleeve as a sheath of a cable, and sleeving the sheath on the outermost side of the shielding layer to protect the cable;
step S12, the contact pins with the pressed leads are arranged at the corresponding positions of the contact pin fixing device;
step S13, the pin fixer and the pin are put into a plug shell together;
s14, injecting epoxy resin glue into the tail part of the plug shell, and fixing the contact pin, the contact pin fixer and the plug shell together;
and S15, installing a cable rear accessory, and fixing the cable plug and the cable together.
(III) beneficial effects
Compared with the prior art, the application provides the high-speed signal transmission cable and the manufacturing method thereof by detecting insertion loss, return loss, crosstalk and resistance of the cable manufactured by the conventional process and analyzing fault information of HDTDR and HDTDX according to the standards of six types of cables, wherein the data transmission of the cable can reach 1.5G/s, the signal transmission efficiency is improved, image interference and frame loss caused by unqualified cables are avoided, and the method has important guiding significance for the design of a high-speed signal transmission link and the manufacture of the cable.
Drawings
FIG. 1 is a schematic illustration of a high-speed signal transmission cable according to an embodiment of the present application;
FIG. 2 is a schematic view of a cable body structure according to an embodiment of the present application;
FIG. 3 is a schematic illustration of the location of a pin in a pin holder according to an embodiment of the present application;
FIG. 4 is a schematic illustration of a high speed signal transmission cable assembly relationship according to an embodiment of the present application;
fig. 5 is a flowchart of an assembling method of a high-speed signal transmission cable according to an embodiment of the present application.
Detailed Description
For the purposes of clarity, content, and advantages of the present application, a detailed description of the embodiments of the present application will be described in detail below with reference to the drawings and examples.
In order to solve the above technical problems, the present application provides a high-speed signal transmission cable, as shown in fig. 1 to 5, one end of the high-speed signal transmission cable is connected to a camera, and the other end is connected to an optical transceiver, the high-speed signal transmission cable is used for transmitting high-speed video signals, and the high-speed signal transmission cable includes:
two identical cable plugs arranged in opposite directions and a cable body arranged between the two cable plugs;
each cable plug's respective terminal surface is connected respectively including camera and optical transceiver including equipment, cable plug's respective tail end connection cable body, cable plug includes: a plug housing, a pin holder, and pins;
one end of the contact pin is a contact, the other end of the contact pin is a wire crimping end, and the wire crimping ends of the contact pin are respectively crimped on the ends of the twisted pair wire and the grounding wire of the cable body;
the pins are arranged on the pin fixing device, and the pin fixing device is used for keeping the pins equal in interval and fixed in position; the plug housing is disposed outside the pin holder for securing the pin holder.
Wherein, the cable body includes: the cable comprises a cable sheath, a shielding layer, an isolation framework, a shielding aluminum foil, an insulating film, a plurality of grounding wires and a plurality of groups of twisted wires;
the circumference of the cross section of the cable body is equally divided into a plurality of grooves by the isolation framework, and the number of the grooves, the number of the groups of twisted wires and the number of the grounding wires are correspondingly equal; the group of twisted wires and the corresponding grounding wire are clamped in the corresponding groove, and the groove is used for keeping the positions of the twisted wires and the grounding wire fixed;
one grounding wire is distributed on one side of one group of twisted wires in each groove and is used for absorbing electromagnetic radiation signals and grounding signals;
the contact pins are respectively pressed at two ends of the grounding wire and the twisted pair wire, and the contact pins are good in electric conduction;
the shielding aluminum foil is wrapped on the outer layers of the twisted pair conductor and the grounding conductor and used for preventing electromagnetic waves of signals of the twisted pair conductor from radiating to the periphery and the outer layers; simultaneously isolating other twisted pair wires from radiating electromagnetic waves inwards;
the insulation film is wound on the outer layer of the shielding aluminum foil and used for tightening the shielding aluminum foil, the twisted pair wires and the grounding wires and keeping insulation with the shielding layer;
the shielding layer is arranged on the secondary outer layer of the cable body and used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards;
the cable sheath is arranged on the outermost layer of the cable body and used for protecting and fixing the grounding wire and the twisted pair wire.
Wherein the isolating framework equally divides the circumference of the cross section of the cable into five grooves, and the angle of each groove is 72 ° Five pairs of twisted wires and five grounding wires are clamped in grooves of the isolation framework, and the positions of the five pairs of twisted wires and the five grounding wires are kept fixed.
The pin fixer is provided with 15 hole sites, wherein 3 hole sites are divided into five subareas;
five groups of twisted pair wires and five grounding wires of the pin fixer respectively correspond to the high-speed signal transmission cable.
Wherein, the cable plug still includes: epoxy resin glue;
the contact pin, the contact pin fixer and the plug shell are assembled together and encapsulated by the epoxy resin glue.
Wherein, the cable plug still includes: a cable rear accessory;
the cable rear accessory is mounted on the plug housing and is used for reinforcing the cable plug and the cable body.
Wherein, the grounding wire is composed of a silver plating bare copper wire.
Wherein, the twisted pair of wires adopts two AFR-2500.2 2 The mm oxygen-free copper silver-plated material wire is twisted anticlockwise at high density, the signal anode is a red wire, and the signal cathode is a white wire.
Wherein the twisted pair wires are not equal to each other in lay length;
the length of the high-speed signal transmission cable is 1300+50mm；
The data flow of the transmission signal of the high-speed signal transmission cable reaches 1.5G/s;
the arrangement positions of the twisted pair of wires and the grounding wire in the pin fixer are unique;
the middle of the twisted pair of wires is not provided with an opposite joint;
the resistance value of the twisted pair of wires is not more than 0.12 omega;
the bandwidth of the twisted pair of wires is 300M;
the twisted pair of wires has a lay length not greater than 4 times the diameter of the wires;
the twisted pair of conductors is twisted counterclockwise.
In addition, the application also provides an assembling method of the high-speed signal transmission cable, the method is applied to the high-speed signal transmission cable, and the method comprises the following steps:
step S1, two AFR-2500.2 with red color and white color 2 mm oxygen-free copper silver plating material guideThe wires are twisted together in a counterclockwise high density to form a twisted pair of wires;
step S2, distributing the grounding wires on one side of the twisted pair wires;
s3, aligning the ends of the grounding wire and the twisted pair wire;
s4, wrapping the twisted pair of wires and the grounding wire together by using a shielding aluminum foil, wherein the end head is reserved for 10mm;
s5, winding an insulating film on the outer layer of the shielding aluminum foil, and closing up the insulating film at a position 10mm away from the end head;
s6, stripping the outer skin at the end of the twisted pair conductor by using a wire stripper, and reserving a 4mm conductor;
step S7, crimping the contact pin on the conductor of the end by using crimping pliers;
step S8, repeating the steps S1-S7 to obtain inclusion bodies of a plurality of groups of twisted pair wires and grounding wires;
s9, respectively installing a plurality of groups of twisted wires in grooves of an isolation framework, and keeping the grounding wires and the twisted wires parallel to each other without bending or crossing;
s10, sleeving a shielding layer on the outer layer of the isolation framework;
s11, adopting a nylon fiber braided sleeve as a sheath of a cable, and sleeving the sheath on the outermost side of the shielding layer to protect the cable;
step S12, the contact pins with the pressed leads are arranged at the corresponding positions of the contact pin fixing device;
step S13, the pin fixer and the pin are put into a plug shell together;
s14, injecting epoxy resin glue into the tail part of the plug shell, and fixing the contact pin, the contact pin fixer and the plug shell together;
and S15, installing a cable rear accessory, and fixing the cable plug and the cable together.
Example 1
According to an embodiment of the present application, there is provided a high-speed signal transmission cable, as shown in fig. 1, 3 and 4, including: a cable plug 100 and a cable body 200; the end face of the cable plug 100 is connected with the device, the tail of the cable plug 100 is connected with the cable body 200, and the cable plug 100 at least comprises a plug shell 101, a pin fixer 102, pins 103, epoxy resin glue 104 and a cable rear accessory 105.
The plug shell 101 is used for fixing the pin fixing device 102 and keeping the pins 103 fixed at equal intervals and opposite positions; the pin 103 is arranged in the pin fixer 102, the pin 103 is used for connecting the twisted pair of wires 206 and the grounding wire 205, the twisted pair of wires 206 with the wire ends being pulled out are put into a pin press-connection hole, and are pressed and fixed by a press-connection clamp; fixing and molding the pin 103 and the plug housing 101 together through epoxy resin glue 104; the cable rear attachment 105 serves to strengthen the cable plug and cable.
The cable body 200 is a main body of a high-speed signal transmission cable for transmitting a high-speed video signal. As shown in fig. 2, the cable body 200 includes: a cable sheath 201, a shielding layer 202, an isolation skeleton 203, an insulating film 204, five grounding wires 205, a twisted pair of wires 206 and a shielding aluminum foil 207;
the cable sheath 201 is a nylon yarn woven net sleeve, is wrapped on the outermost layer of the cable body 200 and is used for protecting and fixing the inner layer wires of the grounding wire 205 and the twisted pair wire 206;
the shielding layer 202 is a red copper woven mesh sleeve, the shielding layer 202 is wrapped on the secondary outer layer of the cable body 200 and sleeved on the isolation framework 203, and the shielding layer is used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards;
the isolating skeleton 203 is made of polyethylene material, the isolating skeleton 203 equally divides the circumference of the cross section of the cable into five grooves, and the angle of each groove is 72 DEG ° Five groups of twisted pair wires 206 and five grounding wires 205 are clamped in grooves of the isolation framework 203 and used for keeping the positions of the five groups of twisted pair wires 206 and the grounding wires 205 fixed, so that the balance characteristic of the cable is improved, the crosstalk attenuation is reduced, and the balance of the cable is ensured not to be damaged in the use process;
the insulating film 204 is an aviation polyimide film and is wrapped on the shielding aluminum foil 207, and is used for binding the shielding aluminum foil 207, the twisted pair wire 206 and the grounding wire 205 and keeping insulation with the outer shielding layer 202;
the shielding aluminum foil 207 is made of an aluminum film material, and wraps the grounding wire 205 and the twisted pair wire 206 together for shielding high-frequency signal radiation;
the grounding wires 205 are composed of silver plated bare copper wires, and five grounding wires are respectively distributed on one side of the five groups of twisted wires 206 and used for absorbing electromagnetic radiation signals and grounding;
twisted pair 206 is a carrier for high speed signals, using two AFR-2500.2 2 The mm oxygen-free copper silver-plated wire is twisted anticlockwise at high density, the red wire is used for the signal anode, and the white wire is used for the signal cathode, and is used for transmitting high-speed video signals.
According to an embodiment of the present application, there is also provided a method for assembling a high-speed signal transmission cable, as shown in fig. 5, including the steps of:
s1, stranded wire: two AFR-2500.2 with red and white color 2 The mm oxygen-free copper silver-plated material wires are twisted together in a counterclockwise high density to form a twisted pair wire 206;
s2: doubling: distributing the ground wire 205 on one side of the twisted pair wire 206;
s3: alignment: aligning the ends of the ground wire 205 and twisted pair wire 206;
s4: and (3) wrapping: wrapping the twisted pair of wires 206 and the ground wire 205 together with a shielding aluminum foil (207), leaving the ends 10mm;
s5: insulation: winding an insulating film 204 on the outer layer of a shielding aluminum foil (207), and closing up the insulating film at a position 10mm away from the end;
s6: stripping: stripping the outer skin at the end of the twisted pair wire 206 with a stripper and reserving the length of the conductor for 4mm;
s7: crimping: crimping the pin 102 to the tip conductors of the twisted pair wire 206 and the ground wire 205 with crimping pliers;
s8: repeating S1-S6, and manufacturing 5 groups of twisted pairs of wires 206;
s9: wiring: the prepared five groups of twisted wires 206 are respectively arranged in the grooves of the isolation framework 203, and the twisted wires 206 and the grounding wires 205 are kept parallel to each other without bending or crossing;
s10: shielding: sleeving the shielding layer 202 on the outer layer of the isolation framework 203;
s11: sheath: sleeving the cable sheath 201 on the outermost side of the shielding layer 201 to protect the cable;
s12: mounting pins: the pins 102 with the pressed wires are installed at the corresponding positions of the pin holders 103;
the first group of twisted pair conductor signal positive poles, the signal negative poles and the pins of the grounding conductor are respectively arranged in the holes of the pin fixer 1, the pin fixer 2 and the pin fixer 9;
pins of the second group of twisted pair conductors, namely a signal positive electrode, a signal negative electrode and a grounding conductor are respectively arranged in holes 10, 11 and 3 of the pin fixer;
the third group of double-stranded conductor signal positive electrode, the signal negative electrode and the contact pins of the grounding conductor are respectively arranged in the holes of the contact pin fixer, namely the holes of the No. 4, the No. 5 and the No. 12;
pins of the fourth group of twisted pair wires, namely a signal positive electrode, a signal negative electrode and a grounding wire, are respectively arranged in holes 13, 14 and 6 of the pin fixer;
the pins of the signal anode, the signal cathode and the grounding wire of the fifth group of twisted pair wires are respectively arranged in holes 7, 8 and 15 of the pin fixer;
s13: and (3) mounting a shell: loading the pin holder 103 and the pins 102 together into the plug housing 101;
s14, glue filling: injecting epoxy resin glue 104 into the tail of the plug housing 101 to fix the pin 102, the pin fixer 103 and the plug housing 101 together;
s15, fixing: cable rear attachment 105 is installed to secure cable plug 100 and cable 200 together.
Further, according to the assembling method of the high-speed signal transmission cable, the assembled high-speed signal transmission cable has the following characteristics:
t10: the installation location of each set of twisted pair conductors 206 and ground conductors 205 within pin holder 102 is unique;
t20: twisted pair conductors 206 are not equally twisted with respect to each other;
t30: the length of the high-speed signal transmission cable is 1300+50mm；
T40: the ends of the twisted pair of wires 206 cannot damage the conductors of the twisted pair of wires 206 during the stripping of the insulation;
t50: in the crimping process of the twisted pair wire 206 and the contact pin 102, a crimping gear matched with the twisted pair wire 206 should be selected to prevent the twisted pair wire 206 from being broken by too small pressure and the twisted pair wire 206 from being in poor contact with the contact pin 102 due to too large pressure;
t60: the twisted pair of conductors 206 mounted on the isolation frame 203 are unstressed, bend-free, break-free and butt-joint.
According to the six-class cable standard, the insertion loss, the return loss, the crosstalk and the resistance of the cable are manufactured through detection of the conventional process, and the fault information of the HDTDR and the HDTDX is analyzed. The data transmission of the cable can reach 1.5G/s, the signal transmission efficiency is improved, the image interference and the frame loss caused by unqualified cables are avoided, and the cable has important guiding significance for the design and the cable manufacture of a high-speed signal transmission link.
The foregoing is merely a preferred embodiment of the present application, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present application, and such modifications and variations should also be regarded as being within the scope of the application.
Claims (10)
1. A high-speed signal transmission cable, characterized in that, a camera is connected to one end of the high-speed signal transmission cable, and an optical transceiver is connected to the other end, the high-speed signal transmission cable is used for transmitting high-speed video signals, the high-speed signal transmission cable includes:
two identical cable plugs arranged in opposite directions and a cable body arranged between the two cable plugs;
each cable plug's respective terminal surface is connected respectively including camera and optical transceiver including equipment, cable plug's respective tail end connection cable body, cable plug includes: a plug housing, a pin holder, and pins;
one end of the contact pin is a contact, the other end of the contact pin is a wire crimping end, and the wire crimping ends of the contact pin are respectively crimped on the ends of the twisted pair wire and the grounding wire of the cable body;
the pins are arranged on the pin fixing device, and the pin fixing device is used for keeping the pins equal in interval and fixed in position; the plug housing is disposed outside the pin holder for securing the pin holder.
2. The high-speed signal transmission cable of claim 1, wherein the cable body comprises: the cable comprises a cable sheath, a shielding layer, an isolation framework, a shielding aluminum foil, an insulating film, a plurality of grounding wires and a plurality of groups of twisted wires;
the circumference of the cross section of the cable body is equally divided into a plurality of grooves by the isolation framework, and the number of the grooves, the number of the groups of twisted wires and the number of the grounding wires are correspondingly equal; the group of twisted wires and the corresponding grounding wire are clamped in the corresponding groove, and the groove is used for keeping the positions of the twisted wires and the grounding wire fixed;
one grounding wire is distributed on one side of one group of twisted wires in each groove and is used for absorbing electromagnetic radiation signals and grounding signals;
the contact pins are respectively pressed and connected with two ends of the grounding wire and the twisted pair wire;
the shielding aluminum foil is wrapped on the outer layers of the twisted pair conductor and the grounding conductor and used for preventing electromagnetic waves of signals of the twisted pair conductor from radiating to the periphery and the outer layers; simultaneously isolating other twisted pair wires from radiating electromagnetic waves inwards;
the insulation film is wound on the outer layer of the shielding aluminum foil and used for tightening the shielding aluminum foil, the twisted pair wires and the grounding wires and keeping insulation with the shielding layer;
the shielding layer is arranged on the secondary outer layer of the cable body and used for isolating external electromagnetic radiation and preventing internal signals from radiating outwards;
the cable sheath is arranged on the outermost layer of the cable body and used for protecting and fixing the grounding wire and the twisted pair wire.
3. The high-speed signal transmission cable of claim 2 wherein said insulating skeleton equally divides the circumference of the cross section of said cable into five grooves, each groove having an angle of 72 degrees ° Five pairs of twisted wires and five grounding wires are clamped in grooves of the isolation framework, and the positions of the five pairs of twisted wires and the five grounding wires are kept fixed.
4. A high speed signal transmission cable according to claim 3 wherein the pin holder has 15 holes, 3 holes being one zone divided into five zones;
five groups of twisted pair wires and five grounding wires of the pin fixer respectively correspond to the high-speed signal transmission cable.
5. The high-speed signal transmission cable of claim 1, wherein the cable plug further comprises: epoxy resin glue;
the contact pin, the contact pin fixer and the plug shell are assembled together and encapsulated by the epoxy resin glue.
6. The high-speed signal transmission cable of claim 1, wherein the cable plug further comprises: a cable rear accessory;
the cable rear accessory is mounted on the plug housing and is used for reinforcing the cable plug and the cable body.
7. The high-speed signal transmission cable of claim 2, wherein the ground wire is comprised of silver plated bare copper wire.
8. The high-speed signal transmission cable of claim 2 wherein said twisted pair conductor employs two AFR-2500.2 wires 2 The mm oxygen-free copper silver-plated material wire is twisted anticlockwise at high density, the signal anode is a red wire, and the signal cathode is a white wire.
9. A high-speed signal transmission cable according to claim 2, wherein,
the twisted pair of wires are not equal to each other in the twisting pitch;
the length of the high-speed signal transmission cable is 1300+50mm；
The data flow of the transmission signal of the high-speed signal transmission cable reaches 1.5G/s;
the arrangement positions of the twisted pair of wires and the grounding wire in the pin fixer are unique;
the middle of the twisted pair of wires is not provided with an opposite joint;
the resistance value of the twisted pair of wires is not more than 0.12 omega;
the bandwidth of the twisted pair of wires is 300M;
the twisted pair of wires has a lay length not greater than 4 times the diameter of the wires;
the twisted pair of conductors is twisted counterclockwise.
10. A method of assembling a high-speed signal transmission cable, the method being applied to the high-speed signal transmission cable according to any one of claims 1 to 9, the method comprising:
step S1, two AFR-2500.2 with red color and white color 2 The mm oxygen-free copper silver-plated material wires are twisted together in a counterclockwise high-density manner to form a twisted pair wire;
step S2, distributing the grounding wires on one side of the twisted pair wires;
s3, aligning the ends of the grounding wire and the twisted pair wire;
s4, wrapping the twisted pair of wires and the grounding wire together by using a shielding aluminum foil, wherein the end head is reserved for 10mm;
s5, winding an insulating film on the outer layer of the shielding aluminum foil, and closing up the insulating film at a position 10mm away from the end head;
s6, stripping the outer skin at the end of the twisted pair conductor by using a wire stripper, and reserving a 4mm conductor;
step S7, crimping the contact pin on the conductor of the end by using crimping pliers;
step S8, repeating the steps S1-S7 to obtain inclusion bodies of a plurality of groups of twisted pair wires and grounding wires;
s9, respectively installing a plurality of groups of twisted wires in grooves of an isolation framework, and keeping the grounding wires and the twisted wires parallel to each other without bending or crossing;
s10, sleeving a shielding layer on the outer layer of the isolation framework;
s11, adopting a nylon fiber braided sleeve as a sheath of a cable, and sleeving the sheath on the outermost side of the shielding layer to protect the cable;
step S12, the contact pins with the pressed leads are arranged at the corresponding positions of the contact pin fixing device;
step S13, the pin fixer and the pin are put into a plug shell together;
s14, injecting epoxy resin glue into the tail part of the plug shell, and fixing the contact pin, the contact pin fixer and the plug shell together;
and S15, installing a cable rear accessory, and fixing the cable plug and the cable together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640573.XA CN116780296A (en) | 2023-06-01 | 2023-06-01 | High-speed signal transmission cable and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640573.XA CN116780296A (en) | 2023-06-01 | 2023-06-01 | High-speed signal transmission cable and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116780296A true CN116780296A (en) | 2023-09-19 |
Family
ID=87988749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310640573.XA Pending CN116780296A (en) | 2023-06-01 | 2023-06-01 | High-speed signal transmission cable and assembly method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116780296A (en) |
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2023
- 2023-06-01 CN CN202310640573.XA patent/CN116780296A/en active Pending
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