CN107274998A - A kind of cable and signal transmission system - Google Patents
A kind of cable and signal transmission system Download PDFInfo
- Publication number
- CN107274998A CN107274998A CN201710466963.4A CN201710466963A CN107274998A CN 107274998 A CN107274998 A CN 107274998A CN 201710466963 A CN201710466963 A CN 201710466963A CN 107274998 A CN107274998 A CN 107274998A
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- Prior art keywords
- cable
- wire
- guidewire lumen
- insulating protective
- protective layer
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Classifications
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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
-
- 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
- H01B7/0045—Cable-harnesses
-
- 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
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0216—Two layers
-
- 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
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- Insulated Conductors (AREA)
Abstract
A kind of cable and signal transmission system, are related to electric wire field.Cable includes cable body and conduction orientation opposite the first wire and the second wire.Cable body includes the first insulating protective layer, screen layer and the second insulating protective layer from inside to outside.First insulating protective layer has the first guidewire lumen and multiple second guidewire lumens, and the axial line of the first guidewire lumen overlaps setting with the axial line of the first insulating protective layer, and circumferential uniform intervals of multiple second guidewire lumens along the first guidewire lumen are set.Screen layer has earthing rod, and earthing rod is protruded towards the second insulating protective layer side by screen layer and runs through the second insulating protective layer, and remote screen layer one end of earthing rod is also convexly equipped with conical head.First wire is placed in the first guidewire lumen, and each second guidewire lumen is equipped with second wire.Signal transmission system includes above-mentioned cable.The two function of shielding is good, signal stabilization, influences small, safety and stability to electricity piece around, be particularly suitable for use in high-speed railway and aerospace field.
Description
Technical field
The present invention relates to electric wire field, in particular to a kind of cable and signal transmission system.
Background technology
The function of shielding of cable itself directly affects the stability of wired signal transmission function, if function of shielding is not good,
The signal of cable transmission is interfered causes signal distortion even entanglement occur, can have a strong impact on signal transmission.It is existing
General cable shield function it is not good and unstable, directly affect the quality of wired signal transmission.
Cable can also produce electric field, magnetic field in signals transmission around itself, easily to the electrical equipment of surrounding and
Other cables produce interference, influence its normal operation.Existing general cable in transmitting procedure around can produce it is stronger
Electrical equipment around it, other cables can all be produced larger harmful effect by magnetic field and electric field.If particularly generate compared with
Strong electric field, is easily damaged to human body, for the sake of security, and existing cable needs to set certain safe distance, this
Sample, which will necessarily be wasted, greatly installs laying space, causes unnecessary waste.
High-speed railway and Aero-Space require higher for cable and cable system, especially for anti-interference and steady
Qualitative tool has high requirements, and existing most of cables are simultaneously unsatisfactory for above-mentioned requirements.In high-speed railway and field of aerospace
In, if cable antijamming capability is not strong, or interference of the cable to electrical equipment around in itself is larger, all easily causes letter
There is signal entanglement in number transmission distortion, even results in instrument failure, so can directly threaten the security of the lives and property of masses.
The content of the invention
It is an object of the invention to provide a kind of cable, it has stable, excellent function of shielding, and stable signal transmission is accurate
Really；And its own electromagnetic field produced is very faint, and small, safety and stability is influenceed on electricity piece around.It is particularly suitable for use in high-speed iron
Road and space flight and aviation private cable.
Another object of the present invention is to provide a kind of signal transmission system, it has stable, excellent function of shielding, letter
Number transmission stablizes accurate；And its own electromagnetic field produced is very faint, and small, safety and stability is influenceed on electricity piece around.Especially
Suitable for high-speed railway and space flight and aviation private cable system.
What embodiments of the invention were realized in：
A kind of cable, it includes cable body and conduction orientation opposite the first wire and the second wire.Cable body
Including the first insulating protective layer, screen layer and the second insulating protective layer.First insulating protective layer has the first guidewire lumen and multiple
Second guidewire lumen, the axial line of the first guidewire lumen overlaps setting, multiple second guidewire lumens with the axial line of the first insulating protective layer
Set along the circumferential uniform intervals of the first guidewire lumen.Screen layer is wrapped in the first insulating protective layer, and the second insulating protective layer is wrapped
In screen layer.Screen layer has an earthing rod, and earthing rod is protruded towards the second insulating protective layer side by screen layer and runs through
Two insulating protective layers, remote screen layer one end of earthing rod is also convexly equipped with conical head.First wire is placed in the first guidewire lumen, often
Individual second guidewire lumen is equipped with second wire.It has stable, excellent function of shielding, and stable signal transmission is accurate；And
The electromagnetic field that its own is produced is very faint, and small, safety and stability is influenceed on electricity piece around.
A kind of signal transmission system, it includes above-mentioned cable.It has stable, excellent function of shielding, signal transmission
It is stable accurate；And its own electromagnetic field produced is very faint, and small, safety and stability is influenceed on electricity piece around.
The beneficial effect of the embodiment of the present invention is：Cable provided in an embodiment of the present invention is by setting the screen with earthing rod
Layer is covered, is grounded using the conical head of earthing rod.Due to point effect, earthing rod is conducive to quick formation in screen layer stable
Shielding, it is ensured that the stability and accuracy of wired signal transmission.It has stable, excellent function of shielding, signal transmission
It is stable accurate.
Circumferential uniform intervals due to multiple second guidewire lumens along the first guidewire lumen are set, and the first wire and the second wire
Conduction orientation on the contrary, so the electromagnetic field that the first wire is each produced with the second wire can cancel out each other, so can be big
The big electromagnetic field weakened around cable, the electromagnetic field for producing its own is very faint, influences small to electricity piece around, safety is steady
Surely so that influence of the cable to electricity piece around is greatly reduced, security and stability are improved.
Signal transmission system provided in an embodiment of the present invention, it has stable, excellent function of shielding, stable signal transmission
Accurately；And its own electromagnetic field produced is very faint, and small, safety and stability is influenceed on electricity piece around.The embodiment of the present invention is carried
The cable and signal transmission system of confession are particularly suitable for use in the high-speed railway and space flight and aviation neck higher to request signal transmission
Domain.The two excellent signal stabilization, antijamming capability and to the less interference of electrical equipment around so that present invention implementation
The cable and signal transmission system that example is provided can meet the signal transmission standard of high-speed railway and space flight and aviation and improve whole
Stability, the accuracy of body signal transmission, and then ensure the security of high-speed railway and space flight and aviation system operation, ensure popular
The security of the lives and property.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the first visual angle schematic diagram of cable provided in an embodiment of the present invention；
Fig. 2 be Fig. 1 in cable the second visual angle schematic diagram；
Sectional views of the Fig. 3 for the cable in Fig. 1 along A-A；
The schematic diagram that Fig. 4 is connected for the cable in Fig. 1 with ground connection conductive sleeve；
Fig. 5 be Fig. 1 in cable wire ball the first visual angle schematic diagram；
Fig. 6 be Fig. 1 in cable wire ball the second visual angle schematic diagram；
Fig. 7 be Fig. 1 in cable wire ball the first spherical shell and the first state schematic diagram of the second spherical shell matching relationship；
Fig. 8 be Fig. 1 in cable wire ball the first spherical shell and the second view of the second spherical shell matching relationship；
Fig. 9 be Fig. 1 in cable the first wire schematic diagram；
Figure 10 be Fig. 1 in cable wire ball other design forms schematic diagram.
Icon：100- cables；110- cable bodies；The insulating protective layers of 111- first；The guidewire lumens of 111a- first；111b-
Two guidewire lumens；112- screen layers；112a- earthing rods；112b- conical heads；The insulating protective layers of 113- second；The wires of 120- first；
121- projections；The wires of 130- second；140- is grounded the band of column；150- is grounded conductive sleeve；160- ground wires；The embedded skeletons of 170-；
180- wire balls；181- wire guides；The spherical shells of 182- first；The Access Divisions of 182a- first；The guide walls of 182b- first；182c- is abutted
Portion；The spherical shells of 183- second；The Access Divisions of 183a- second；The guide walls of 183b- second；184- necks.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
Term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively heavy
The property wanted.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Embodiment
Fig. 1, Fig. 2 and Fig. 3 are refer to, the present embodiment provides a kind of cable 100.Cable 100 include cable body 110 and
Conduction orientation opposite the first wire 120 and the second wire 130.
Cable body 110 includes the first insulating protective layer 111, the insulating protective layer 113 of screen layer 112 and second.First is exhausted
Edge protective layer 111 has the first guidewire lumen 111a and multiple second guidewire lumen 111b.First guidewire lumen 111a axial line and
The axial line of one insulating protective layer 111, which is overlapped, to be set, and multiple second guidewire lumen 111b are uniform along the first guidewire lumen 111a circumference
It is arranged at intervals.
Screen layer 112 is wrapped in the first insulating protective layer 111, and the second insulating protective layer 113 is wrapped in screen layer 112.Screen
Layer 112 is covered to be protruded simultaneously towards the side of the second insulating protective layer 113 by screen layer 112 with earthing rod 112a, earthing rod 112a
Through the second insulating protective layer 113, earthing rod 112a one end of remote screen layer 112 is also convexly equipped with conical head 112b.First leads
Line 120 is placed in the first guidewire lumen 111a, each second guidewire lumen 111b and is equipped with second wire 130.Wherein, earthing rod
112a is realized with screen layer 112 and electrically connected.
Because screen layer 112 is located between the first insulating protective layer 111 and the second insulating protective layer 113, screen layer 112 is not
It can be directly affected by outer partial electric current, the shielding action for enabling screen layer 112 to play stably.
When cable 100 is disturbed by external electromagnetic field, due to conical head 112b point effect, electronics can be accelerated to exist
The movement rate of screen layer 112 so that screen layer 112 quickly forms stable shielding, makes the interference that cable 100 is subject to the greatest extent may be used
It can reduce.Ensure the stability and accuracy of the signal of cable 100 transmission.
On the other hand, circumferential uniform intervals of multiple second guidewire lumen 111b along the first guidewire lumen 111a are set, and first
The conduction orientation of the wire 130 of wire 120 and second is on the contrary, contribute to the electricity that the first wire 120 and the second wire 130 are each produced
Magnetic field is mutually fully offset, and the circumferential uniform intervals due to multiple second guidewire lumen 111b along the first guidewire lumen 111a are set, the
The electromagnetic field registration highest that the electromagnetic field and the second wire 130 that one wire 120 is produced are produced, is conducive to cable 100 itself to produce
Raw electromagnetic field is fully eliminated.Total electromagnetic field around cable 100 is very faint, can greatly reduce around 100 pairs of cable
The influence and interference of electricity piece.So just greatly save laying without setting safe distance to cable 100 or exempting from interference distance
Space, and improve the security and stability of cable 100.
Further, the second guidewire lumen 111b diameter is slightly larger than the external diameter of the second wire 130.The structure can be limited effectively
The relative position of fixed second wire 130, makes the second wire 130 as far as possible with the second guidewire lumen 111b along the first guidewire lumen 111a's
Circumferential uniform intervals are set, it is ensured that the electromagnetic field that the first wire 120 is each produced with the second wire 130 is mutually fully offset.
Further, earthing rod 112a has multiple, and earthing rod 112a is cylindrical, multiple earthing rod 112a axial line edge
Cable 100 is radially arranged, and circumferential uniform intervals of multiple earthing rod 112a along cable 100 set to form the ground connection band of column 140.Edge
The earthing rod 112a that the circumferential uniform intervals of cable 100 are set can strengthen the uniformity for shielding field produced by screen layer 112
With stability, the shielding properties of cable 100 is improved.
It should be noted that the ground connection band of column 140 is at least one, according to different laying demand and working environment need
Will, the spacing between the number of the ground connection band of column 140 and each ground connection band of column 140 can be adjusted flexibly.
Further, Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are refer to, the ground connection band of column 140 is arranged with ground connection conductive sleeve 150, and ground connection is led
Electricity set 150 is coaxially disposed in annular shape, ground connection conductive sleeve 150 with cable 100, is grounded the inwall and conical head of conductive sleeve 150
112b is offseted, and ground connection conductive sleeve 150 is grounded by ground wire 160.
Further, insulation processing is made in the side of remote screen layer 112 of ground connection conductive sleeve 150, is grounded leaning on for conductive sleeve 150
112 side of close shield layer are that the inwall for being grounded conductive sleeve 150 offsets and realized with conical head 112b and is electrically connected with screen layer 112
Connect.
Each earthing rod 112a is connected and is uniformly grounded by ground wire 160, Ke Yiyou by ground connection conductive sleeve 150
Effect avoids influence of the local current to screen layer 112 around cable 100.Particularly when obvious electricity occurs in the surrounding of cable 100
During potential difference, ground connection conductive sleeve 150 can avoid shielding of the external electrical potential difference to screen layer 112 from damaging, with protection screen
The effect of layer 112 is covered, the function of shielding of screen layer 112 is normally played a role, it is ensured that the stability of cable 100.
Further, cable 100 also include embedded skeleton 170, embedded skeleton 170 in the shape of a spiral, embedded skeleton
170 are embedded at the first guidewire lumen 111a side wall, and embedded skeleton 170 is along the axially arranged of cable 100, embedded skeleton 170
Axial line overlapped with the first guidewire lumen 111a axial line setting and embedded skeleton 170 internal diameter and the first guidewire lumen 111a
Diameter it is equal.Wherein, embedded skeleton 170 in epoxy resin, glass fibre and Nomex paper any one be made.
Epoxy resin, glass fibre and Nomex paper are respectively provided with good insulating properties, and resistance to high intensity, height
The features such as hot, high resistant to partial discharges, improve the stability and security of cable 100.Embedded skeleton 170 has good
Mechanical strength, has supporting function to cable 100, can effectively prevent cable 100 from occurring local collapse in use
Problem.Further, since the embedded design of skeleton 170 curl, can be with cable 100 on the basis of possessing supporting function
Bent, do not interfere with the normal laying of cable 100.Different from existing cable, existing cable is possessing high machinery by force
The problem of bending is difficult occurs in the case of degree, great puzzlement is caused to the laying of cable, and cable 100 overcome with
Upper problem.
Further, the pitch of embedded skeleton 170 is 6cm~20cm.The section of embedded skeleton 170 is in square substantially
Shape, is so conducive to making the first guidewire lumen 111a obtain side wall holding smoothly, the first wire 120 is easily installed and not easy to wear.
Further, Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8 are refer to, cable 100 also includes wire ball
180, wire ball 180 is placed in the first guidewire lumen 111a, and wire ball 180 has the wire guide 181 passed through for the first wire 120.
Wire ball 180 is in spherical, and the axial line of wire guide 181 is overlapped with a diameter of wire ball 180.Wire ball 180 includes removable
The first spherical shell 182 and the second spherical shell 183 of connection are unloaded, the first spherical shell 182 and the second spherical shell 183 surround wire guide 181.Wherein,
The diameter of wire guide 181 is slightly larger than the external diameter of the first wire 120, and the external diameter of wire ball 180 is slightly less than the first guidewire lumen 111a's
Diameter.
Wire ball 180 can reduce the contact area between the first wire 120 and the first guidewire lumen 111a side wall, make
Phase mutual friction between first wire 120 and the first guidewire lumen 111a side wall is reduced, and is conducive to protecting the first wire 120.This
Outside, because the external diameter of wire ball 180 is slightly less than the first guidewire lumen 111a diameter, and the axial line and wire ball of wire guide 181
180 diameter is overlapped, and this causes the first wire 120 to be located substantially at the first guidewire lumen 111a axial line, so that the
The electromagnetic field that one wire 120 is each produced with the second wire 130 is fully offset as far as possible, is conducive to further weakening cable 100
The electromagnetic field that itself is produced, is disturbed, and further increase cable simultaneously with further reducing 100 pairs of surrounding electricity pieces of cable
100 security and stability.
Further, realized and connected by clamping between the first spherical shell 182 and the second spherical shell 183.Specifically, the first spherical shell
182 have the first Access Division 182a, and the second spherical shell 183 has the second Access Division 183a for being used for being caught in the first Access Division 182a.
First Access Division 182a close to the side of the second spherical shell 183 have the first guide wall 182b, the second Access Division 183a close to the
The side of one spherical shell 182 has the second guide wall 183b.Along the first spherical shell 182 towards the direction of the second spherical shell 183, the first guide wall
Axial line side of the 182b gradually towards wire guide 181 is close, and the second guide wall 183b is gradually distance from the axle center of wire guide 181
Line side, the first guide wall 182b and the second guide wall 183b shapes are complementary.
First guide wall 182b and the second guide wall 183b can effectively reduce the first spherical shell 182 and block with the second spherical shell 183
Resistance when connecing, is easy to wire ball 180 to install.And can effectively prevent the first spherical shell 182 to be mutually disengaged with the second spherical shell 183.
Further, along the axial direction of wire guide 181, the first spherical shell 182, which has, is used for the two ends with the second Access Division 183a
The abutting part 182c offseted, after the first spherical shell 182 and the second 183 clamping of spherical shell, abutting part 182c can be connected to the second clamping
Portion 183a two ends, prevent the relative slip of axial direction generation along wire guide 181 between the first spherical shell 182 and the second spherical shell 183, protect
Demonstrate,prove the compactness and the stability of wire ball 180 of the first spherical shell 182 and the clamping of the second spherical shell 183.
Further, Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9 are refer to, wire ball 180 has neck
184, neck 184 is recessed by the side wall of wire guide 181 towards the axial line side away from wire guide 181.First wire 120, which has, to be used
In the projection 121 engaged with neck 184.The structure can prevent wire ball 180 from being slided along the axial direction of the first wire 120,
Prevent wire ball 180 from assembling so that the first wire 120 can be accurately limited, make the first wire 120 generally within first
At guidewire lumen 111a axial line.
Specifically, in the present embodiment, wire guide 181 is used to pass through for single first wire 120.It should be noted that
In other embodiments of the invention, wire guide 181 can also be other shapes, wire guide 181 can be used for for 2,3,4
First wire 120 of root even more many is passed through, as shown in Figure 10.Same axle of these first wires 120 along wire ball 180
The circumference of line is uniformly arranged, it is ensured that the electromagnetic field of the first wire 120 and the second wire 130 can fully be offset.
Further, Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9 are continued referring to, in the present embodiment,
Neck 184 is with projection 121 in annular shape.0.5~3m is spaced between two wire balls 180.
Further, the first guidewire lumen 111a and the second guidewire lumen 111b fill lithium base grease.Lithium base grease has
There are excellent water-resistance, mechanical stability, resistance to extreme pressure anti-wear, water proofing property, rust-preventing characteristic and oxidation stability.Lithium base grease exists
Under exceedingly odious environmental condition, its function still can be played, Applicable temperature scope is -20 DEG C~120 DEG C.Lithium base grease can
To greatly improve the security and stability and adaptive capacity to environment of cable 100, and it is favorably improved the service life of cable 100.
, can be by the first wire 120 without changing whole piece cable 100 when first wire 120 of cable 100 needs to change
Extraction is re-replaced.Because wire ball 180 can greatly reduce the contact of the first wire 120 and the first guidewire lumen 111a side wall
Area so that the friction between the first wire 120 and the first guidewire lumen 111a side wall is greatly reduced.Plus lithium base grease
Friction between lubrication, the wire 120 of wire ball 180 and first and the first guidewire lumen 111a side wall further reduces,
Be conducive to the replacing of the first wire 120.
The operation principle of cable 100 is：When carrying out signal transmission using cable 100, the first wire 120 and the second wire
130 can produce electromagnetic field, but be due to that the second wire 130 is set along the circumferential uniform intervals of the first wire 120, and first
The electromagnetic field that wire 120 is produced with both the second wires 130 can substantially cancel out each other, total electromagnetic field around cable 100 its
It is in fact very faint, can so effectively reduces interference of the cable 100 to the electricity piece around it, improves the peace of cable 100
Total stability.
When cable 100 is disturbed by external electromagnetic field, screen layer 112 can quickly form stabilization using point effect
Field is shielded, makes cable 100 from the interference of external electromagnetic field, it is ensured that the accuracy and stability of the signal of cable 100 transmission.
In general, cable 100 has stable, excellent function of shielding, and stable signal transmission is accurate；And its own is produced
Electromagnetic field it is very faint, on electricity piece around influence it is small, it is safe and reliable.High-speed railway and Aero-Space are for cable and electricity
Cable system requirements is higher, has high requirements especially for anti-interference and stability tool, existing most of cables are simultaneously discontented with
Sufficient above-mentioned requirements.Cable 100 with its superior stability, anti-interference and security be particularly suitable for high-speed railway with
And space flight and aviation private cable.
The present embodiment also provides a kind of signal transmission system, and it includes cable 100.The signal transmission system equally has steady
Fixed, excellent function of shielding, stable signal transmission is accurate；And its own electromagnetic field produced is very faint, to electricity piece around
Influence is small, safe and reliable.The signal transmission system is particularly suitable for high-speed railway and space flight and aviation private cable system.
High-speed railway and Aero-Space require higher for cable and cable system, especially for anti-interference and steady
Qualitative tool has high requirements, and existing most of cables are simultaneously unsatisfactory for above-mentioned requirements.In high-speed railway and field of aerospace
In, if cable antijamming capability is not strong, or interference of the cable to electrical equipment around in itself is larger, all easily causes letter
There is signal entanglement in number transmission distortion, even results in instrument failure, so can directly threaten the security of the lives and property of masses.
The cable 100 and signal transmission system that the present embodiment is provided are particularly suitable for use in the height higher to request signal transmission
Fast railway and field of aerospace, the two excellent signal stabilization, antijamming capability and smaller to electrical equipment around
Interference so that the cable 100 and signal transmission system that the present embodiment is provided can meet high-speed railway and space flight and aviation
Signal transmission standard simultaneously improves the stability of overall signal transmission, accuracy, and then ensure high-speed railway and space flight and aviation system
The security of running, ensures the popular security of the lives and property.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of cable, it is characterised in that including cable body and conduction orientation opposite the first wire and the second wire；Institute
Stating cable body includes the first insulating protective layer, screen layer and the second insulating protective layer；First insulating protective layer has the
One guidewire lumen and multiple second guidewire lumens, the axial line weight of the axial line of first guidewire lumen and first insulating protective layer
Close and set, circumferential uniform intervals of multiple second guidewire lumens along first guidewire lumen are set；The screen layer wrap in
First insulating protective layer, second insulating protective layer is wrapped in the screen layer；The screen layer has earthing rod, institute
Earthing rod is stated to be protruded towards the second insulating protective layer side by the screen layer and run through second insulating protective layer,
Remote described screen layer one end of the earthing rod is also convexly equipped with conical head；First wire is placed in first wire
Chamber, each second guidewire lumen is equipped with second wire.
2. cable according to claim 1, it is characterised in that the cable also includes embedded skeleton, described embedded
In the shape of a spiral, the embedded skeleton is embedded at the side wall of first guidewire lumen, the axial line of the embedded skeleton to skeleton
The internal diameter and the diameter of first guidewire lumen of setting and the embedded skeleton are overlapped with the axial line of first guidewire lumen
It is equal.
3. cable according to claim 2, it is characterised in that the embedded skeleton by epoxy resin, glass fibre and
Any one in Nomex paper is made.
4. cable according to claim 1, it is characterised in that the cable also includes wire ball, the wire ball is housed
In first guidewire lumen, the wire ball has the wire guide passed through for first wire；The wire ball includes removable
The first spherical shell and the second spherical shell of connection are unloaded, first spherical shell and second spherical shell surround the wire guide.
5. cable according to claim 4, it is characterised in that the wire ball has neck, the neck is led by described
The side wall of string holes is recessed towards the axial line side away from the wire guide；First wire, which has, to be used to engage with the neck
Projection.
6. cable according to claim 5, it is characterised in that the diameter of first guidewire lumen is slightly larger than the wire ball
External diameter, the diameter of second guidewire lumen is slightly larger than the diameter of second wire.
7. cable according to claim 1, it is characterised in that radial direction of the axial line of the earthing rod along the cable is set
Put, the earthing rod is multiple, and circumferential uniform intervals of multiple earthing rods along the cable set to form the ground connection band of column；Institute
State cable along its it is axially arranged have at least one be grounded band of column.
8. cable according to claim 7, it is characterised in that the earthing rod ring set is described to connect provided with ground connection conductive sleeve
Ground conductive sleeve is coaxially disposed with the cable, and the inwall of the ground connection conductive sleeve offsets with the conical head, and the ground connection is conductive
Set is by ground connection.
9. cable according to claim 1, it is characterised in that first guidewire lumen and second guidewire lumen are filled
Lithium base grease.
10. a kind of signal transmission system, it is characterised in that including the cable as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466963.4A CN107274998B (en) | 2017-06-19 | 2017-06-19 | A kind of cable and signal transmission system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466963.4A CN107274998B (en) | 2017-06-19 | 2017-06-19 | A kind of cable and signal transmission system |
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| CN107274998A true CN107274998A (en) | 2017-10-20 |
| CN107274998B CN107274998B (en) | 2019-05-17 |
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| CN201710466963.4A Active CN107274998B (en) | 2017-06-19 | 2017-06-19 | A kind of cable and signal transmission system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411152A (en) * | 2018-11-05 | 2019-03-01 | 查正春 | A kind of sound equipment power source special cable manufacture craft |
| CN110942850A (en) * | 2018-09-25 | 2020-03-31 | 上海诺基亚贝尔股份有限公司 | Apparatus, method and system for electrical interconnection |
| CN112735667A (en) * | 2020-12-22 | 2021-04-30 | 欧耐特线缆集团有限公司 | Shielding monitoring type cable for coal mine area and using method thereof |
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| CN101361142A (en) * | 2006-01-17 | 2009-02-04 | 索尼化学&信息部件株式会社 | Transmission cable |
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| CN101361142A (en) * | 2006-01-17 | 2009-02-04 | 索尼化学&信息部件株式会社 | Transmission cable |
| CN102760518A (en) * | 2011-04-25 | 2012-10-31 | 住友电气工业株式会社 | Multilayer coaxial cable bundle and manufacturing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942850A (en) * | 2018-09-25 | 2020-03-31 | 上海诺基亚贝尔股份有限公司 | Apparatus, method and system for electrical interconnection |
| US10833494B2 (en) | 2018-09-25 | 2020-11-10 | Nokia Shanghai Bell Co., Ltd. | Apparatus, method and system for electrical interconnection |
| CN109411152A (en) * | 2018-11-05 | 2019-03-01 | 查正春 | A kind of sound equipment power source special cable manufacture craft |
| CN112735667A (en) * | 2020-12-22 | 2021-04-30 | 欧耐特线缆集团有限公司 | Shielding monitoring type cable for coal mine area and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN107274998B (en) | 2019-05-17 |
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