CN204926884U - Crosslinked polyethylene shielding frequency conversion cable - Google Patents
Crosslinked polyethylene shielding frequency conversion cable Download PDFInfo
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- CN204926884U CN204926884U CN201520729450.4U CN201520729450U CN204926884U CN 204926884 U CN204926884 U CN 204926884U CN 201520729450 U CN201520729450 U CN 201520729450U CN 204926884 U CN204926884 U CN 204926884U
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Abstract
The utility model discloses a crosslinked polyethylene shielding frequency conversion cable, three wires all have sector section with the conductor, the insulating layer adopts the crosslinked polyethylene material to make, all wires are parallel to be indulged and puts and two balance or cancel each other and lean on, formation has circular cross section's cable core, the cable core outside is the cladding inner liner in proper order, first shielding layer, the secondary shielding layer, the restrictive coating, first shielding layer adopts the wire winding to form, the secondary shielding layer adopts the strap spiral to form around the package, the restrictive coating adopts the polyvinyl chloride material to make. The utility model provides a crosslinked polyethylene shielding frequency conversion cable compares with the round cable that the article font of equal current -carrying capacity was arranged, the cross -sectional area of cable core reduces closely 30%, has reduced the required space of cable wiring greatly, on the other hand, and cable core compact structure and stable, external force hardly changes the combination overall arrangement between it, and compressive property is good, and on the one hand, double shielding has guaranteed on the layer anti -interference ability of cable again.
Description
Technical field
The utility model relates to field of cable technology, particularly relates to a kind of crosslinked polyethylene shielding frequency-changing cable.
Background technology
Frequency-changing cable is mainly used in variable frequency power supply and variable-frequency motor, and in rated voltage 1KV and following electric line, to be used as transmission of electric energy, it is particularly useful for the industries such as papermaking, metallurgy, intermetallic composite coating, mine, railway and food processing.Along with variable-frequency control technique is in the application of the industries such as papermaking, metallurgy, intermetallic composite coating, mine, railway and food processing, the demand of frequency-changing cable is increasing, requires more and more higher.But existing frequency-changing cable is loosely organized, and ampacity is little, and compressive property is poor, is vulnerable to electromagnetic interference.
Utility model content
For solving the technical problem existed in background technology, the utility model proposes a kind of crosslinked polyethylene shielding frequency-changing cable, compact conformation, ampacity is large, and resistance to compression interference free performance is excellent.
A kind of crosslinked polyethylene shielding frequency-changing cable that the utility model proposes, comprising: three wires, inner covering, the first screen, secondary shielding layer, restrictive coatings;
Every root wire comprises the conductor being positioned at middle part and the insulating barrier being coated on conductor outside, and wire and conductor all have sector crosssection, and insulating barrier adopts cross-linking polyethylene materials to make; All wires parallel longitudinal and between two against, formed and there is the cable core of circular cross-section;
Inner covering is wrapped outside at all cable cores, and the first screen adopts wire to make, and it is wrapped in inner covering outside, secondary shielding layer adopts metal tape to make, it is outside that its spiral winding wraps in the first screen, and restrictive coating adopts pvc material to make, and it is outside that it is coated on secondary shielding layer.
Preferably, the first screen adopts copper wire to make, and it is wound around density is d, d >=85%.
Preferably, the first screen adopts the equal copper wire of cross-sectional area and aluminum metal silk to make, and copper wire and aluminum metal silk are alternately wound around in inner covering outside, and in the first screen, copper density of wires is a, and the density of aluminum metal silk is b, a=b.
Preferably, the coverage rate of the first screen is not less than 90%.
Preferably, secondary shielding layer adopts copper metal tape to make.
Preferably, the angle of circumference of three wires is equal.
Preferably, the angle of circumference of three conductors is equal, and symmetrical at cable core inner periphery.
In the utility model, the crosslinked polyethylene shielding frequency-changing cable proposed, three wires and conductor all have sector crosssection, insulating barrier adopts cross-linking polyethylene materials to make, all wires parallel longitudinal and between two against, formed and there is the cable core of circular cross-section, cable core outside is coated inner covering, the first screen, secondary shielding layer, restrictive coating successively, first screen adopts wire to be entwined, and secondary shielding layer employing metal tape spiral is wrapped to be formed, and restrictive coating adopts pvc material to make.By the crosslinked polyethylene shielding frequency-changing cable of above-mentioned optimal design, compared with the round cable arranged with the isosceles triangle of equal ampacity, the reduced cross-sectional area nearly 30% of cable core, greatly reduce the space needed for cable distribution, on the other hand, cable core structure is compact and stable, external force be difficult to change between it in conjunction with layout, compressive property is good, more on the one hand, double layer screen layer ensure that the interference free performance of cable.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of crosslinked polyethylene shielding frequency-changing cable that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is the structural representation of a kind of crosslinked polyethylene shielding frequency-changing cable that the utility model proposes.
With reference to Fig. 1, a kind of crosslinked polyethylene shielding frequency-changing cable that the utility model proposes, comprising: three wires 1, inner covering 2, first screen 3, secondary shielding layer 4, restrictive coatings 5;
Every root wire 1 comprises the conductor 11 being positioned at middle part and the insulating barrier 12 being coated on conductor 11 outside, wire 1 and conductor 11 all have sector crosssection, the angle of circumference of three wires 1 is equal, and the angle of circumference of three conductors 11 is equal, and symmetrical at cable core inner periphery, insulating barrier 12 adopts cross-linking polyethylene materials to make; All wires 1 parallel longitudinal and between two against, formed and there is the cable core of circular cross-section;
Inner covering 2 is wrapped outside at all cable cores, first screen 3 adopts copper wire to make, it is outside that it is wrapped in inner covering 2, be wound around density and be not less than 85%, secondary shielding layer 4 adopts copper metal tape to make, it is outside that its spiral winding wraps in the first screen 3, and restrictive coating 5 adopts pvc material to make, and it is outside that it is coated on secondary shielding layer 4.
In another embodiment, the copper wire that first screen 3 adopts cross-sectional area equal and aluminum metal silk are made, copper wire and aluminum metal silk are alternately wound around in inner covering 2 outside, in first screen 3, copper density of wires is a, the density of aluminum metal silk is b, a=b, and the coverage rate of the first screen 3 is not less than 90%, reduce cost of material, and improve shield effectiveness.
In the present embodiment, the crosslinked polyethylene shielding frequency-changing cable proposed, three wires and conductor all have sector crosssection, insulating barrier adopts cross-linking polyethylene materials to make, all wires parallel longitudinal and between two against, formed and there is the cable core of circular cross-section, cable core outside is coated inner covering, the first screen, secondary shielding layer, restrictive coating successively, first screen adopts wire to be entwined, and secondary shielding layer employing metal tape spiral is wrapped to be formed, and restrictive coating adopts pvc material to make.By the crosslinked polyethylene shielding frequency-changing cable of above-mentioned optimal design, compared with the round cable arranged with the isosceles triangle of equal ampacity, the reduced cross-sectional area nearly 30% of cable core, greatly reduce the space needed for cable distribution, on the other hand, cable core structure is compact and stable, external force be difficult to change between it in conjunction with layout, compressive property is good, more on the one hand, double layer screen layer ensure that the interference free performance of cable.
In a specific embodiment, the angle of circumference of three wires is equal, and the angle of circumference of three conductors is equal, and symmetrical at cable core inner periphery, and three conductors are evenly distributed in cable core, and make cable core internal magnetic field even, Electro Magnetic Compatibility is good.
First screen adopts wire to be wound around, and secondary shielding layer adopts metal tape spiral winding, makes cable pliability good.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (7)
1. a crosslinked polyethylene shielding frequency-changing cable, is characterized in that, comprising: three wires (1), inner covering (2), the first screen (3), secondary shielding layer (4), restrictive coating (5);
Every root wire (1) comprises the conductor (11) being positioned at middle part and the insulating barrier (12) being coated on conductor (11) outside, wire (1) and conductor (11) all have sector crosssection, and insulating barrier (12) adopts cross-linking polyethylene materials to make; All wires (1) parallel longitudinal and between two against, formed and there is the cable core of circular cross-section;
Inner covering (2) is wrapped outside at all cable cores, first screen (3) adopts wire to make, it is outside that it is wrapped in inner covering (2), secondary shielding layer (4) adopts metal tape to make, it is outside that its spiral winding wraps in the first screen (3), restrictive coating (5) adopts pvc material to make, and it is outside that it is coated on secondary shielding layer (4).
2. crosslinked polyethylene shielding frequency-changing cable according to claim 1, it is characterized in that, the first screen (3) adopts copper wire to make, and it is wound around density is d, d >=85%.
3. crosslinked polyethylene shielding frequency-changing cable according to claim 1, it is characterized in that, first screen (3) adopts the equal copper wire of cross-sectional area and aluminum metal silk to make, copper wire and aluminum metal silk are alternately wound around in inner covering (2) outside, in first screen (3), copper density of wires is a, the density of aluminum metal silk is b, a=b.
4. crosslinked polyethylene shielding frequency-changing cable according to claim 3, it is characterized in that, the coverage rate of the first screen (3) is not less than 90%.
5. crosslinked polyethylene shielding frequency-changing cable according to claim 1, it is characterized in that, secondary shielding layer (4) adopts copper metal tape to make.
6. crosslinked polyethylene shielding frequency-changing cable according to claim 1, it is characterized in that, the angle of circumference of three wires (1) is equal.
7. crosslinked polyethylene shielding frequency-changing cable according to claim 6, it is characterized in that, the angle of circumference of three conductors (11) is equal, and symmetrical at cable core inner periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729450.4U CN204926884U (en) | 2015-09-18 | 2015-09-18 | Crosslinked polyethylene shielding frequency conversion cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520729450.4U CN204926884U (en) | 2015-09-18 | 2015-09-18 | Crosslinked polyethylene shielding frequency conversion cable |
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| Publication Number | Publication Date |
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| CN204926884U true CN204926884U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520729450.4U Active CN204926884U (en) | 2015-09-18 | 2015-09-18 | Crosslinked polyethylene shielding frequency conversion cable |
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| CN (1) | CN204926884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019228275A1 (en) * | 2018-06-01 | 2019-12-05 | 凡甲电子(苏州)有限公司 | Flat data transmission cable |
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2015
- 2015-09-18 CN CN201520729450.4U patent/CN204926884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019228275A1 (en) * | 2018-06-01 | 2019-12-05 | 凡甲电子(苏州)有限公司 | Flat data transmission cable |
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