CN214312741U - Flame-retardant coaxial computer instrument cable - Google Patents
Flame-retardant coaxial computer instrument cable Download PDFInfo
- Publication number
- CN214312741U CN214312741U CN202120433435.0U CN202120433435U CN214312741U CN 214312741 U CN214312741 U CN 214312741U CN 202120433435 U CN202120433435 U CN 202120433435U CN 214312741 U CN214312741 U CN 214312741U
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- conductor
- retardant
- polyester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000010410 layer Substances 0.000 claims abstract description 96
- 239000004020 conductor Substances 0.000 claims abstract description 57
- 229920000728 polyester Polymers 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052802 copper Inorganic materials 0.000 claims abstract description 19
- 239000010949 copper Substances 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 229920000098 polyolefin Polymers 0.000 claims description 16
- 239000000779 smoke Substances 0.000 claims description 16
- 239000011810 insulating material Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims 1
- 230000005764 inhibitory process Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a fire-retardant type coaxial computer instrument cable belongs to wire and cable technical field. The utility model discloses a fire-retardant type coaxial computer instrument cable, including conductor, insulating layer, polyester layer, concentric conductor layer, conductor protective layer, isolation layer, shielding layer, oversheath. The utility model relates to a flame-retardant coaxial computer instrument cable, which has the advantages that thin round copper wires are wound outside each insulated wire core on the concentric conductor layer, and the wound thin round copper wires of the structure can be used as concentric conductors and can also be used as separate shields; when the fine round copper wire is wound to be used as a cable split screen structure, the shielding inhibition coefficient of the whole computer cable can be increased, and the overall advantages of the computer cable are increased; when the winding fine round copper wire is used as a concentric conductor structure of the cable, the service efficiency of the cable can be increased, and the number of the used cables is reduced. The product uses flame retardant materials, and the cable has good flame retardant property.
Description
Technical Field
The utility model relates to a cable, a fire-retardant type coaxial computer instrument cable.
Background
The technical difficulty of the cable is to ensure that the cable has a good shielding suppression coefficient, the cable is convenient for anti-interference performance in the using process, and a very high insulation resistance is required, so that a concentric conductor layer and a total shielding layer of the cable have certain insulation resistance, and the mutual interference between the concentric conductor layer and the shielding layer is avoided, and the signal transmission function of the cable is not influenced.
The national intellectual property office, 10 and 25 months in 2019, disclosed a utility model patent with an opinion publication number of CN209543954U, named as "a coaxial cable"; the utility model relates to the field of cable production, which comprises an inner conductor, wherein the periphery of the inner conductor is provided with an insulating layer, an aluminum foil layer, a weaving layer and a sheath layer in sequence; the insulating layer is formed by connecting a plurality of insulating pieces end to end, the upper part of each insulating piece is cylindrical, an annular groove is formed in the upper end face of each insulating piece, and a limiting groove is formed in the outer side face of the bottom of each groove; a connecting column is arranged in the center of the lower part of the insulating part, the connecting column is hollow, and a limiting block is arranged on the periphery of the connecting column; the connecting column can be embedded into the groove and matched with the groove; the limiting block can be embedded into the limiting groove and is matched with the limiting groove. The utility model discloses a braided layer shielding effect is not as winding concentric conductor structure, the unable transmission control signal of braided layer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technical defect, provide a fire-retardant type coaxial computer instrument cable, make its higher shielding suppression coefficient, and concentric conductor layer both can be done the conductor transmission model and can also be done and divide shielding layer shielding external diameter to disturb.
In order to realize the purpose of the invention, the utility model adopts the technical scheme that: coaxial computer cable includes conductor, insulating layer, polyester layer, concentric conductor layer, isolation layer, total shielding layer and oversheath from inside to outside in proper order, its characterized in that: the conductor is formed by twisting a plurality of strands of copper wires; the insulating layer is low-smoke halogen-free flame-retardant polyolefin; the concentric conductor layer is formed by winding thin round copper wires; the isolation layer is formed by overlapping, wrapping and extruding low-smoke halogen-free flame-retardant polyolefin with polyester tapes; the shielding layer is a copper-plastic composite belt with additional electrical connecting wires; the outer sheath is low-smoke halogen-free flame-retardant polyolefin.
The utility model has the advantages that:
1. the conductor is formed by twisting a plurality of strands of copper wires, so that the cable is very soft, is convenient to wind and bend, has small bending radius and can be used in places which move frequently.
2. The insulating layer is made of flame-retardant low-smoke halogen-free polyolefin material, and the material has good electric insulating property and corona property and has flame-retardant property.
3. The concentric conductor layer adopts many thin round copper wires winding outside the insulation core, can do the conductor transmission signal, also can do the shielding suppression coefficient that divides the shielding increase sinle silk.
4. The isolation layer adopts the fire-retardant low smoke and zero halogen polyolefin material of extruded package after the overlapping of one deck polyester area is lapped, increases the insulating nature and the fire resistance of cable.
5. The total shielding layer adopts copper plastic tape overlapping to wrap, so that the overall shielding inhibition coefficient of the cable is improved, and a group of electrical connecting wires are placed in the total shielding layer to facilitate the detection of the on-off of shielding.
6. The low-smoke halogen-free flame-retardant polyolefin of the outer protective layer has the characteristics of wear resistance, flame retardance and the like.
7. The materials used by the cable are environment-friendly materials, so that toxic gas can not be released during combustion, and the cable is an environment-friendly product and accords with the current green environmental protection concept.
8. The concentric conductor of the cable has two functions, namely, control signal transmission and shielding for preventing external signal interference.
Compared with the prior art, the utility model, the income of bringing shows:
1. the utility model discloses a concentric conductor structure makes the concentric conductor of cable have two kinds of functions of transmission signal and shielding signal.
2. The utility model discloses a flame retardant material has not only played the physical mechanical protection effect, and more the cable provides certain flame retardant property.
3. The utility model discloses when concentric conductor structure embodies transmission performance in the structure, solved the mixed and disorderly phenomenon of laying the scene cable at to a great extent, be applicable to the removal in chaotic space and lay.
Drawings
1. Fig. 1 is a schematic cross-sectional structure diagram of the present invention.
2. Reference numeral 1: 1. conductor, 2, insulating layer, 3, polyester layer, 4, concentric conductor layer, 5, conductor protective layer, 6, isolation layer, 7, total shielding layer, 8, oversheath.
Detailed Description
1. Example 1:
as a preferred embodiment of the present invention, refer to the attached drawings of the specification:
the flame-retardant coaxial computer instrument cable mainly comprises a conductor, an insulating layer, a polyester layer, a concentric conductor layer, a conductor protective layer, an isolation layer, a total shielding layer and an outer sheath, wherein the conductor is formed by stranding 30 fine round copper wire bundles with the nominal diameter of 0.2mm, the insulating layer is formed by extruding and wrapping a low-smoke halogen-free flame-retardant polyolefin insulating material, and the insulating nominal thickness of the copper conductor with the nominal sectional area of 1mm2 is 0.6 mm; the conductor and the insulating layer form an insulating wire core; the polyester layer is formed by lapping a polyester belt with the thickness of 0.04mm outside an insulating wire core in an overlapping mode, the overlapping and covering rate is more than or equal to 15%, the concentric conductor layer is formed by uniformly winding 30 thin round copper wires with the nominal diameter of 0.2mm outside the polyester belt, the spacing between the thin round copper wires is less than 14 times of the diameter of the thin round copper wires, the unwinding direction is the right direction, the conductor protection layer is formed by lapping a polyester belt with the thickness of 0.04mm outside the concentric conductor structure in an overlapping mode, the overlapping and covering rate is more than or equal to 15%, a low-smoke halogen-free flame-retardant polyolefin insulating material with the nominal thickness of 0.5mm is extruded after the lapping, the color of the insulating material is consistent with the insulating color of the inner layer, the insulating wire core, the polyester layer, the concentric conductor layer and the conductor protection layer form a wire core combination, the isolation layer is formed by cabling and twisting two wire core combinations according to the structure of the drawing, the twisting direction is the right direction, the twisting pitch is 16 times of the diameter of the cable core diameter, and the polyester belt with the thickness of 0.04mm is lapped and the double layers outside the cable core, the overlapping rate is more than or equal to 25 percent, and the cable core is tightened; the total shielding layer is formed by lapping a copper-plastic composite belt with the thickness of 0.05mm on the back of the isolation layer in an overlapping way, the overlapping rate is more than or equal to 15%, and 3 thin round copper wires with the nominal diameter of 0.18mm are placed in the total shielding layer to serve as electrical connecting wires; the outer sheath layer is formed by extruding thermoplastic polyolefin, the nominal thickness of the sheath is 1.1mm, and the maximum working capacitance of a product produced by the process is qualified after a maximum working capacitance test is carried out.
2. Example 2:
as a preferred embodiment of the present invention, refer to the attached drawings of the specification:
the flame-retardant coaxial computer instrument cable mainly comprises a conductor, an insulating layer, a polyester layer, a concentric conductor layer, a conductor protective layer, an isolation layer, a total shielding layer and an outer sheath, wherein the conductor is formed by stranding 28 fine round copper wire bundles with the nominal diameter of 0.25mm, the insulating layer is formed by extruding and wrapping a low-smoke halogen-free flame-retardant polyolefin insulating material, and the insulating nominal thickness of the copper conductor with the nominal sectional area of 1mm2 is 0.6 mm; the conductor and the insulating layer form an insulating wire core; the polyester layer is formed by lapping a polyester belt with the thickness of 0.04mm outside an insulating wire core in an overlapping way, the overlapping and covering rate is more than or equal to 15 percent, the concentric conductor layer is formed by uniformly winding 28 thin round copper wires with the nominal diameter of 0.25mm outside the polyester belt, the spacing of the overlapping and covering is less than 14 times of the diameter of the thin round copper wires, the direction of the overlapping and covering is the right direction, the conductor protective layer is formed by lapping a polyester belt with the thickness of 0.04mm outside the concentric conductor structure in an overlapping way, the overlapping and covering rate is more than or equal to 15 percent, a layer of low-smoke halogen-free flame-retardant polyolefin insulating material with the nominal thickness of 0.5mm is extruded after lapping, the color of the insulating material is consistent with the insulating color of the inner layer, the insulating wire core, the polyester layer, the concentric conductor layer and the conductor protective layer form a wire core combination, the isolating layer is formed by stranding two wire core combinations according to the structure shown in the drawing, the right direction and stranding pitch is 16 times of the diameter of the cable core, and a polyester belt with the thickness of 0.04mm is lapped and lapped outside the cable core in an overlapping way, the overlapping rate is more than or equal to 25 percent, and the cable core is tightened; the total shielding layer is formed by lapping a copper-plastic composite belt with the thickness of 0.05mm on the back of the isolation layer in an overlapping way, the overlapping rate is more than or equal to 15%, and 3 thin round copper wires with the nominal diameter of 0.18mm are placed in the total shielding layer to serve as electrical connecting wires; the outer sheath layer is formed by extruding thermoplastic polyolefin, the nominal thickness of the sheath is 1.2mm, and the maximum working capacitance of a product produced by the process is qualified after a maximum working capacitance test is carried out.
Claims (9)
1. The utility model provides a fire-retardant type coaxial computer instrument cable, includes conductor (1), insulating layer (2), polyester layer (3), concentric conductor layer (4), conductor protective layer (5), isolation layer (6), total shield layer (7), outer jacket (8), its characterized in that: the conductor (1) is composed of superfine soft copper wire bundles; the insulating layer (2) is made of extruded low-smoke halogen-free flame-retardant polyolefin insulating material; the polyester layer (3) is a high-insulation polyester belt; the concentric conductor layer (4) is formed by winding a plurality of superfine soft copper wires outside the insulating layer; the protective layer (5) is formed by winding a polyester tape and extruding a low-smoke halogen-free flame-retardant polyolefin insulating material; the isolation layer (6) is composed of a polyester tape; the total shielding layer (7) is formed by a copper-plastic composite belt and an electric connecting wire; the outer protective layer (8) is formed by extruding and wrapping low-smoke halogen-free flame-retardant polyolefin.
2. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the conductor (1) is a fifth type conductor formed by thin copper wire bunched wires with the diameter of 0.2-0.5 mm, and the bunched wires are arranged in the left direction.
3. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the insulating layer (2) is an extruded low-smoke halogen-free flame-retardant 70-degree polyolefin insulating material.
4. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the polyester layer (3) is a polyester belt lapped with one layer in an overlapping mode, and the lapping rate is more than or equal to 15%.
5. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the concentric conductor layer (4) is formed by winding a plurality of thin copper wires with the diameter of 0.12-0.5 mm outside the polyester layer.
6. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the protective layer (5) is formed by lapping a polyester belt and extruding a low-smoke halogen-free flame-retardant 70-degree polyolefin insulating material with the nominal thickness of 0.5 mm.
7. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the isolation layer (6) is a double-layer polyester tape wrapped outside the group twisted wire core in an overlapping mode, and the covering rate is more than or equal to 25%.
8. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the total shielding layer (7) is formed by lapping a single-layer copper-plastic composite tape with the nominal thickness of 0.05mm in an overlapping mode, and 3 copper wires with the nominal diameter of 0.18mm are added into the total shielding layer to serve as electrical connecting wires.
9. The flame retardant coaxial computer instrument cable according to claim 1, wherein: the outer protective layer (8) is made of extruded low-smoke halogen-free flame-retardant polyolefin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120433435.0U CN214312741U (en) | 2021-03-01 | 2021-03-01 | Flame-retardant coaxial computer instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120433435.0U CN214312741U (en) | 2021-03-01 | 2021-03-01 | Flame-retardant coaxial computer instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214312741U true CN214312741U (en) | 2021-09-28 |
Family
ID=77836383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120433435.0U Active CN214312741U (en) | 2021-03-01 | 2021-03-01 | Flame-retardant coaxial computer instrument cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214312741U (en) |
-
2021
- 2021-03-01 CN CN202120433435.0U patent/CN214312741U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6641428B2 (en) | HDMI optical / electrical composite cable and method of manufacturing the same | |
| CN201465594U (en) | Low-smoke, halogen-free, flame-retardant, medium-voltage marine cables | |
| CN203026256U (en) | Communication cable for halogen-free low-smoke flame-retardant fire-proof ship | |
| CN207966534U (en) | An HDMI photoelectric composite cable | |
| CN201514785U (en) | Anti-electromagnetic-interference control cable | |
| CN203134467U (en) | A fireproof anti-interference data communication high-voltage oil-filled cable | |
| CN202887839U (en) | Halogen-free low-smoke flame-retardant medium-voltage frequency changer cable | |
| CN202134273U (en) | A flame retardant and high temperature resistant intrinsically safe computer cable | |
| CN214312741U (en) | Flame-retardant coaxial computer instrument cable | |
| CN222482991U (en) | Safety cable with shielding function | |
| CN215377030U (en) | Stretch-proofing fire-retardant composite cable | |
| CN203536026U (en) | Crosslinked polyethylene insulated double-shielding steel band armored environment-friendly flame-retardant control cable for voltage of 450/750V and lower voltage | |
| CN207718872U (en) | Photoelectric Composite HDMI Cable | |
| CN104240802A (en) | Flexible cable for intrinsic safety DCS | |
| CN201758017U (en) | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable | |
| CN217767940U (en) | Low-smoke halogen-free B1-level flame-retardant power cable with rated voltage of 35kV for subway | |
| CN105679420A (en) | Multifunctional cable of sound equipment | |
| CN215868674U (en) | Multi-core flexible fireproof communication cable for security system | |
| CN201025585Y (en) | Low Smoke Halogen Free Flame Retardant Cable | |
| CN214068399U (en) | Environment-friendly flame-retardant cable for photoelectric communication | |
| CN201549266U (en) | Low-smoke XLPE insulated light-weight thin-wall communication cables for ships | |
| CN115116667A (en) | Signal transmission monitoring data detection integrated power cable | |
| CN201893161U (en) | Soft type low smoke zero halogen cable for ship | |
| CN203325484U (en) | Intrinsically safe flexible cable for DCS system | |
| CN218123015U (en) | Flame-retardant high-low voltage cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |