CN207966565U - Internal screening railway digital signal cable - Google Patents
Internal screening railway digital signal cable Download PDFInfo
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- CN207966565U CN207966565U CN201820440302.4U CN201820440302U CN207966565U CN 207966565 U CN207966565 U CN 207966565U CN 201820440302 U CN201820440302 U CN 201820440302U CN 207966565 U CN207966565 U CN 207966565U
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- Prior art keywords
- layer
- digital signal
- railway digital
- signal cable
- internal screening
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- 238000012216 screening Methods 0.000 title claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- 238000004049 embossing Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 7
- 229920001721 polyimide Polymers 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000009719 polyimide resin Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 238000003618 dip coating Methods 0.000 claims description 7
- 238000005187 foaming Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 11
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000009954 braiding Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model is related to internal screening railway digital signal cables, from inside to outside successively include shielding line group, inside non-hygroscopic insulating layer, self-lock shielded layer, outside non-hygroscopic insulating layer and itself be multilayered structure sheath.Self-lock shielded layer is formed to be spirally wound on the periphery of inside non-hygroscopic insulating layer equipped with the copper strips that waveform embosses, and the waveform embossing of two neighboring winding circle is mutually matched flanging formation self-locking.The internal screening railway digital signal cable of the utility model has good shielding properties and bending property, can adapt to lay use under extreme conditions.
Description
Technical field
The utility model is related to signal cable, more particularly to a kind of internal screening railway digital signal cable.
Background technology
With the fast development of railway traffic cause, existing newly built railway, electrification innovation circuit use ZPW-2000A certainly
Dynamic block system, mating cable are railway digital signal cable and its series of products internal screening railway digital signal cable.
Internal screening railway digital signal cable can meet the needs of railway signal automatic block system and the transmission of station coding information, have
Effect solves to ensure traffic safety and computer control and detection with the interference problem between cable transmission line group with frequency, improve railway number
The safety and reliability of word signal, analog information transmission channel realizes the low multinomial service integration transmission of capacitance broadband, is mesh
Preceding highly sophisticated products with high content of technology, the huge market demand.
Though existing internal screening railway digital signal cable can meet the use demand under conventional environment, in some spies
Different occasion, internal screening railway digital signal cable high temperature resistant and low temperature resistant, shielding properties to application and bending property require compared with
Height, otherwise the transmission quality of signal cannot be guaranteed.And existing internal screening railway digital signal cable, use environment temperature
It it is -40 DEG C~60 DEG C, shielded layer mainly uses embossing longitudinal wrap, and armor is mainly wrapped using double steel band gaps, such
Design, certainly will affect the shielding properties and bending property of internal screening railway digital signal cable, to affect inner shield iron
Railway digital signal cable especially lays and uses in extreme temperature conditions in various occasions.
Utility model content
The purpose of this utility model is in order to solve the above problem at least one, and the utility model, which provides, has good shielding
The internal screening railway digital signal cable of performance and bending property and environment wide adaptation range.
Internal screening railway digital signal cable, from inside to outside successively include shielding line group, inside non-hygroscopic insulating layer, from
Locking-type helical shield layer, outside non-hygroscopic insulating layer and itself be multilayered structure sheath.
Self-lock shielded layer is that non-hygroscopic is exhausted on the inside of the intermediate copper strips for being equipped with waveform protrusion embossing is spirally wound on
The periphery of edge layer is formed, it is two neighboring winding circle copper strips lap one another flanging formed self-locking.
Wherein, the crest height of waveform protrusion embossing is between 0.5~2mm.
Wherein, the width of the copper strips overlap joint flanging of two neighboring winding circle is not less than 3mm.
Wherein, sheath includes armor, and armor includes the high resiliency zinc-coated wire that surface dip-coating has polyimide resin
Gauze made of braiding.
Wherein, an at least aerial drainage conducting wire is equipped between inside non-hygroscopic insulating layer and self-lock shielded layer.
Wherein, sheath further includes the first external sheath layer and the second oversheath being successively arranged successively in the periphery of armor
Layer, the first external sheath layer be polyethylene outer sheath, the second external sheath layer by dip-coating have polyimide resin organdy weave and
At.
Wherein, sheath further includes inner cushion layer, aluminium sheath and the cable core belting layer being successively arranged successively in the inside of armor,
Cable core belting layer is contacted with non-hygroscopic insulating layer.
Wherein, shielding line group includes more twisted insulated single wires, and insulated single wire includes copper conductor successively from inside to outside, interior
Cortex, foaming layer and exodermis.
The utility model has the advantages that：
The internal screening railway digital signal cable of the utility model has good shielding properties and bending property, can
Adaptation is laid under extreme conditions, such as：The interference of electromagnetic field is serious, is used for a long time to being bent more demanding environment, and can-
Work in 180 DEG C~+300 DEG C temperature ranges.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to this practicality
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 shows the sectional view of the internal screening railway digital signal cable according to the utility model embodiment；
Fig. 2 shows the self-lock screens according to the internal screening railway digital signal cable of the utility model embodiment
Cover the schematic diagram of layer.
Specific implementation mode
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to be best understood from the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened completely is communicated to those skilled in the art.
A kind of internal screening railway digital signal cable shown in Fig. 1, including cable core, the sheath that is coated on outside cable core, inner shield
The cable core of railway digital signal cable includes at least one shielding quad 1, the shielding four of internal screening railway digital signal cable
Line group includes the insulated single wire 2 that four different colours are mutually twisted setting, and each insulated single wire 2 is by copper conductor 3, endodermis 4, foaming
Layer 5 and exodermis 6 form.Four different colours mutually be twisted setting insulated single wire 2 outside be disposed with inside non-hygroscopic it is exhausted
Edge layer 7, self-lock shielded layer 9 and outside non-hygroscopic insulating layer 10, sheath from the inside to the outside successively include cable core band 11,
Aluminium sheath 12, inner cushion layer 13, armor 14, the first oversheath 15 and the second oversheath 16.
It should be noted that ensure that self-lock shielded layer 9 keeps excellent electricity after laying and in being used for a long time
Shielding properties is indulged between the inside non-hygroscopic insulating layer 7 and self-lock shielded layer 9 of internal screening railway digital signal cable
To being provided with an at least aerial drainage conducting wire 8.
The endodermis 4 of insulated single wire 2 is carbon sealant, by the hygroscopicity of carbon, can be prevented by the way that the carbon sealant is arranged
Erosion of the moisture to conductor, ensure cable signal stablizes transmission, extends the service life of cable.
Exodermis 6 is the high density polyethylene (HDPE) insulating layer that surface is coated with polyimide coating, and the second oversheath 16 is by soaking
The organdy for being coated with polyimide resin weaves, since polyimides has higher decomposition temperature, (generally all 500
DEG C or so) and resistance to low temperature (such as in -269 DEG C of liquid helium will not embrittlement), it can be to internal screening railway digital signal electricity
Cable forms good mechanically and chemically protective effect, and can work in -180 DEG C~+300 DEG C temperature ranges.
Armor 14 has the high resilience zinc-coated wire of polyimide resin to weave by dip-coating, it not only has superior
Compressive property, and yet form good anti-tensile element so that the bending property of cable is further enhanced, instead of
Therefore double-tape armor layer in the prior art is not in the frequent bottom pour ladle of double-tape armor layer and bale breaking problem, electricity
Cable safety coefficient is high.
The self-lock shielded layer 9 of internal screening railway digital signal cable is after being pressed into wave mode curved surface in advance using pure copper strips
Rotation is coated on outside cable core centered on cable core, and each wave mode curved surface itself that saves is laminated, and forms the shielded layer of one layer of self-locking.
The crest height of waveform protrusion embossing is positioned at 0.5~2mm between, and overlapped that width is not small for the copper strips flanging that two neighboring winding is enclosed
In 3mm.9 soft pliable of self-lock shielded layer is bent, and cable has higher tensile strength and bending property, not will produce leakage
The quality problems of packet, bale breaking and fracture, shield effectiveness are good.
When making, the insulated single wire 2 of four different colours is first twisted into quad, and non-in one layer of inside of its outer cladding
Then moist insulating layer 7 aerial drainage conducting wire 8 is arranged on inside non-hygroscopic insulating layer 7, using interlocking armor process by copper strips
Four different colours for being coated on non-hygroscopic insulating layer 7 on the inside of being coated with mutually are twisted on the insulated single wire 2 of setting, are then used
It is wrapped or extrude technique and coat the non-moist insulating layer 10 in outside again outside self-lock shielded layer 9, then by all line groups one
It rises and is made by twisting cable core, then in cable core outer cladding cable core belting layer 11, using the continuous Welding of argon arc welding in cable core belting layer
One layer of aluminium sheath 12 of outer cladding extrudes layer of polyethylene or the inner cushion layer 13 of other materials using technique is extruded outside aluminium sheath,
There is the high resilience zinc-coated wire of polyimide resin using weaving in one layer of armor 14 of inner cushion layer outer cladding dip-coating,
Use extrudes technique and extrudes layer of polyethylene oversheath outside armor 14 again, and dip-coating is finally used to have the glass of polyimide resin
Glass yarn coats one layer of braiding layer outside the polyethylene outer sheath extruded using weaving, that is, the inner shield of the utility model is made
Railway digital signal cable.Aluminium sheath 12 can also be composite sheath.
This internal screening railway digital signal cable, the endodermis 4 of insulated single wire uses carbon sealant in cable core, passes through carbon
Hygroscopicity, erosion of the moisture to conductor can be prevented.Exodermis 6 is coated with the high-density polyethylene of polyimide coating using surface
Alkene insulate, and oversheath has the organdy braiding layer of polyimide resin using the one layer of dip-coating of oversheath outer cladding extruded, not only
The mechanically and chemically protective effect of cable is enhanced, and further ensures cable in -180 DEG C~+300 DEG C temperature ranges
It is used for a long time.Meanwhile the internal shield of cable uses self-lock shielded layer 9,9 soft pliable of self-lock shielded layer
Song, cable have higher tensile strength and bending property, not will produce bottom pour ladle, bale breaking and the quality problems of fracture, and shield
It is good to cover effect.In addition, armor 14 is woven using high resilience zinc-coated wire, it not only has superior compressive property,
And yet form good anti-tensile element so that the bending property of cable is further enhanced, instead of in the prior art
Double-tape armor layer therefore the frequent bottom pour ladle of double-tape armor layer and bale breaking problem will not occur, cable is safely
Number is high.
Internal screening railway digital signal cable obtained is subjected to bending and shielding properties test, test method and result are such as
Under：
(1) bending property is tested
Take length be 365cm sample of cable, by the center portion thereof position in can landing cable reel circular shaft vertex, cable
Disk diameter of round spindle is 51cm, and the vertical cable reel that rises leaves ground completely up to cable ends and horizontal plane.In cable
Both ends hang respectively weight be 36kg counterweight, in 30s at tangent line immediately below cable reel circular shaft measure cable between water
Flat distance.Test result (summer：25 ± 2 DEG C, winter -5 ± 2 DEG C) it is shown in Table 1.
(2) shielding properties is tested
It is the sample of cable of 1500mm to take length, and sample both ends oversheath is peelled off 275mm, then by the armouring at sample both ends
Layer peels off 250mm with inner cushion layer, and fine copper wire twist circle will be used between the 25mm and aluminium sheath at armor both ends, is allowed to and aluminium sheath
The good contact of layer.With one circle of fine copper wire winding on aluminium sheath layer, metal collar is formed；From the choosing from center in sample cable core
The conductor both ends are peelled off insulating layer, and tighten in metal collar, core wire Voltage loop are made by fixed measurement conductor；By sample
Product are clamped on screening factor tester, and one end core wire Voltage loop is connected with voltage measurement line；It tightens on becket.The other end
Two clips of voltmeter, one is clipped on metallic sheath, another is clipped on voltage measurement line；Two clips of voltmeter, one
A to be clipped on metallic sheath, another is clipped on sample cable core.By start button, power supply indicator is bright, waits for digital voltmeter
After display is stablized, you can it carries out test and adjusts transformer handwheel, voltmeter shows given voltage, after numerical stability to be shown, note
The numerical value of lower voltmeter.Performance requirement (≤0.2)
Table 1：The performance test of internal screening railway digital signal cable
| Pilot project | Test result |
| Summer bend test/cm | 25 |
| Winter bend test/cm | 32 |
| Shielding properties is tested | 0.09 |
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with
Subject to the scope of the claims.
Claims (8)
1. internal screening railway digital signal cable, which is characterized in that the internal screening railway digital signal cable from inside to outside according to
Secondary includes shielding line group (1), inside non-hygroscopic insulating layer (7), self-lock shielded layer (9), the insulation of outside non-hygroscopic
Layer (10) and the sheath that itself is multilayered structure；
The self-lock shielded layer (9) is that the intermediate copper strips for being equipped with waveform protrusion embossing is spirally wound on the non-suction in the inside
The periphery of moist insulating layer (7) is formed, and flanging overlaps to form self-locking the copper strips of two neighboring winding circle each other.
2. internal screening railway digital signal cable as described in claim 1, which is characterized in that
The crest height of the waveform protrusion embossing is between 0.5~2mm.
3. internal screening railway digital signal cable as described in claim 1, which is characterized in that
Copper strips flanging overlapped the width of two neighboring winding circle is not less than 3mm.
4. internal screening railway digital signal cable as described in claim 1, which is characterized in that
The sheath includes armor (14), and the armor (14), which includes surface dip-coating, the high-elastic zinc-plated of polyimide resin
Gauze made of braided steel wire.
5. the internal screening railway digital signal cable as described in any one in Claims 1 to 4, which is characterized in that
An at least aerial drainage conducting wire is equipped between the inside non-hygroscopic insulating layer (7) and self-lock shielded layer (9)
(8)。
6. internal screening railway digital signal cable as claimed in claim 4, which is characterized in that
The sheath further includes the first external sheath layer (15) and second being successively arranged successively in the periphery of the armor (14)
External sheath layer (16).
7. internal screening railway digital signal cable as claimed in claim 4, which is characterized in that
The sheath further include the inner cushion layer (13) being successively arranged successively in the inside of the armor (14), aluminium sheath (12) and
Cable core belting layer (11), the cable core belting layer (11) contact with the outside non-hygroscopic insulating layer (10).
8. internal screening railway digital signal cable as described in claim 1, which is characterized in that
The shielding line group (1) includes twisted more insulated single wires (2), and the insulated single wire (2) includes successively from inside to outside
Copper conductor (3), endodermis (4), foaming layer (5) and exodermis (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440302.4U CN207966565U (en) | 2018-03-29 | 2018-03-29 | Internal screening railway digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820440302.4U CN207966565U (en) | 2018-03-29 | 2018-03-29 | Internal screening railway digital signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207966565U true CN207966565U (en) | 2018-10-12 |
Family
ID=63726439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820440302.4U Expired - Fee Related CN207966565U (en) | 2018-03-29 | 2018-03-29 | Internal screening railway digital signal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207966565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666042A (en) * | 2018-03-29 | 2018-10-16 | 江苏通鼎光电科技有限公司 | Internal screening railway digital signal cable |
-
2018
- 2018-03-29 CN CN201820440302.4U patent/CN207966565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666042A (en) * | 2018-03-29 | 2018-10-16 | 江苏通鼎光电科技有限公司 | Internal screening railway digital signal cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |