CN201994131U - Environment-resistant high-performance flexible cable for frequency converter - Google Patents
Environment-resistant high-performance flexible cable for frequency converter Download PDFInfo
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- CN201994131U CN201994131U CN2011200857986U CN201120085798U CN201994131U CN 201994131 U CN201994131 U CN 201994131U CN 2011200857986 U CN2011200857986 U CN 2011200857986U CN 201120085798 U CN201120085798 U CN 201120085798U CN 201994131 U CN201994131 U CN 201994131U
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Abstract
The utility model discloses an environment-resistant high-performance flexible cable for a frequency converter. The flexible cable comprises a cable core and an insulating layer, wherein the cable core is formed by a plurality of main wire cores, auxiliary wire cores and flame-retardant fillers; the main wire cores are evenly distributed at the center of the cable core; the auxiliary wire cores surround the main wire cores; the main wire cores are main electric current transmission lines; composite insulating layers and metal shielding layers are wrapped outside conductors of the main wire cores in sequence; the auxiliary wire cores are neutral lines and formed by conductors and insulating layers wrapped on the conductors; the non-hygroscopic flame-retardant fillers are filled among the main wire cores and the auxiliary wire cores; and a lining layer, a composite shielding layer and an outer sheath layer are arranged outside the cable core in sequence. The cable disclosed by the utility model can be used in frequency converting systems in severe environments of the petrochemical industry, mines, pipeline transportation, drinking water engineering, the steel and iron industry, the metallurgical industry, coal mines, and the like for a long time, and has the advantages of high anti-interference performance, steady electrical performance, and the like, thereby guaranteeing safe and reliable operation of the electric cable.
Description
Technical field
The utility model patent relates to technical field of electric wires and cables, is that a kind of less frequency convertor system that maybe can drag of bending radius that is applicable to that environment such as petrochemical industry, mine, pipeline conveying, diversion works, iron and steel, metallurgy, colliery are abominable and power supply quality is had relatively high expectations transmits private cable with middle and high voltage electricity.
Background technology
Frequency converter has good inhibitory effect to high order harmonic component, thereby can reduce the radiation of high order harmonic component, and it is by the electric power of cable output, become interference source, electric power system, load and other contiguous electric equipments are produced interference, especially particularly more outstanding than Harmonic Interference problems such as higher high-precision meter, computer control systems to anti-tampering requirement.So design suitable Cable for frequency changer, could effectively reduce the radiation and the pollution of harmonic wave, reduce the loss and the heating of motor.
The utility model content
The utility model is in order to satisfy petrochemical industry, the mine, pipeline is carried, diversion works, iron and steel, metallurgical, adverse circumstances such as colliery are to the specific (special) requirements of cable, the use that cable data design of optimizing and extraordinary insulating material and special jacket material mate mutually, make the cable can long-term work under-40 ℃ temperature, and can in adverse circumstances, drag, and anti-particular surroundings requirement, high pressure resistant, anti-high frequency, anti-pulse voltage, anti-corona, oil resistant, moisture-proof, wear-resisting, oil resistant mud, anti-mud, high-low temperature resistant, and has a low smoke and zero halogen, environmental protection, the fire-retardant performance synthesis advantage all over the body that waits, thereby strengthened cable nargin safe in utilization, bring into play the result of use of cable the best, and prolonged the useful life of cable.
The utility model technical solution problem provides following scheme:
A kind of high-performance transducer of anti-environmental form flexible cable, comprise cable core, insulating barrier, it is characterized in that: described cable core is by several master cores, by-pass core and fire-retardant filler form, described master core is evenly distributed on the cable core center, described by-pass core is centered around around the described master core, described master core is electric current main transmission line road, the conductor of described master core is enclosed with composite insulation layer and metal screen layer outward successively, described by-pass core is the neutral line, constitute by conductor and the insulating barrier that is wrapped on the conductor, be filled with the fire-retardant filler of non-hygroscopic between described master core and the by-pass core, described cable core is established inner covering outward successively, composite shielding layer and external sheath layer.
Described screen has adopted copper wire to twine the structure that adds the copper strips shielding, and the copper wire lay of lapping of optimization and the rate of putting up of copper strips make the shielding rejection coefficient less than 0.03.
Described external sheath layer has adopted high performance LSOH anti-flaming environmental protection macromolecule TPU material.
Because the influence of " kelvin effect " and the abominable (conductor is corrosion-resistant) of environment adopt 5 class tin-coated copper conductors.Guaranteeing that the tin layer is not destroyed on the conductor monofilament, not only pass through the control of strict wire drawing size, also want the lay design and feasible practical operation and strict process control of optimal parameter, guaranteed conductor outward appearance rounding, on same three-dimensional face without any uneven phenomenon, and the tin layer still is coated on the conductor equably, makes conductor closely be coated effectively, thereby has avoided the field intensity punch-through.Because the particularity that cable uses, make cable have high pressure resistant, anti-high frequency, anti-pulse voltage, anti-corona and can effectively suppress performances such as High-frequency Interference, require to adopt the higher material of the little and anti-corona intensity of dielectric constant, selected a kind of anti-electromagnetism, electric pulse to disturb rubber mixture, its basic mechanical design feature index meets the regulation among the VDE 0207 fully.Because of being middle and high pressure cable,, make the effect that reaches even no gap coating between conductor shield and insulating barrier, insulating barrier and the insulation screen so conductor screen, insulation, insulation shielding adopt three-layer co-extruded method.Adopt the construction of cable of this insulation closely knit, can not only prevent external moisture content effectively, can also prevent the immersion of greasy dirt and moisture effectively.Break through the tactic pattern design of normal cable, adopt three methods that add three fens neutral lines, and the neutral line is enclosed with between every phase, the design of the stranding lay of optimization and feasible technological operation and strict process control have significantly reduced the radiation of reactance.In order to reach electromagnetic compatibility, suppress radiation, the protection electromagnetic environment; adopted copper wire to twine the mode that adds the copper strips shielding; the copper wire lay of lapping of optimizing and the rate of putting up of copper strips make to shield rejection coefficient less than 0.03, and its shielding properties meets the related request of state such as America and Europe about electromagnetic compatibility fully.The adverse circumstances in the external world when using in order to take into account cable, adopted high performance LSOH anti-flaming environmental protection macromolecule TPU as sheath material, because the excellence of its material property, make the cable can long-term work under-40 ℃ temperature, and anti-particular surroundings requirement, premium properties such as oil resistant, moisture-proof, wear-resisting, oil resistant mud, anti-mud, high-low temperature resistant and softness.
The beneficial effects of the utility model are, by the meticulous selection of rational design, Parameter Optimization and material, thereby cable can be used for a long time provide in the frequency conversion system under adverse circumstances such as petrochemical industry, mine, pipeline conveying, diversion works, iron and steel, metallurgy, colliery advantages such as interference free performance height, electric property be stable to guarantee the safe and reliable operation of cable.
The product structure feature explanation:
1, has the stable electric property and the decay resistance of conductor.
2, because the particularity that cable uses, make cable have high pressure resistant, anti-high frequency, anti-pulse voltage, anti-corona and can effectively suppress performances such as High-frequency Interference, require to adopt the higher material of the little and anti-corona intensity of dielectric constant, selected a kind of anti-electromagnetism, electric pulse to disturb rubber mixture, its basic mechanical design feature index meets the regulation among the VDE 0207 fully.So, make to reach the effect that even no gap coats between conductor shield and insulating barrier, insulating barrier and the insulation screen because of being that middle and high pressure adopts three-layer co-extruded method with cable conductor screen, insulation, insulation shielding.Adopt the construction of cable of this insulation closely knit, can not only prevent external moisture content effectively, can also prevent the immersion of greasy dirt and moisture effectively.
3, break through the tactic pattern design of normal cable, adopt three methods that add three fens neutral lines, and the neutral line is enclosed with between every phase, the design of the stranding lay of optimization and feasible technological operation and strict process control have significantly reduced the radiation of reactance.
4, in order to make the cable electromagnetic field can not produce interference to external world; guarantee that electric appliance component or device can operate as normal in electromagnetic environment; accomplish electromagnetic compatibility; suppress radiation; the protection electromagnetic environment has adopted copper wire to twine the mode that adds the copper strips shielding, the copper wire lay of lapping of optimization and the rate of putting up of copper strips; make the shielding rejection coefficient less than 0.03, its shielding properties meets the related request of state such as America and Europe about electromagnetic compatibility fully.
5, high performance LSOH anti-flaming environmental protection macromolecule TPU is as sheath material, because the excellence of its material property, make the cable can long-term work under-40 ℃ temperature, and anti-particular surroundings requirement, premium properties such as oil resistant, moisture-proof, wear-resisting, oil resistant mud, anti-mud, high-low temperature resistant and softness.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of high-performance transducer of anti-environmental form flexible cable, comprise cable core 1, insulating barrier 2, described cable core 1 is by several master cores 3, the fire-retardant filler 5 of by-pass core 4 and non-hygroscopic forms, described master core 3 is evenly distributed on cable core 1 center, described by-pass core 4 is centered around around the described master core 3, described master core 3 is the main transmission line road, the conductor 8 outer composite insulation layer 6 and the metal screen layers 7 of being enclosed with successively of described master core 3, described by-pass core 4 is the neutral line, constitute by conductor 8 and the insulating barrier 2 that is wrapped on the conductor 8, be filled with the fire-retardant filler 5 of non-hygroscopic between described master core 3 and the by-pass core 4, the described cable core 1 outer inner covering 9 of establishing successively, composite shielding layer 10 and external sheath layer 11.
Claims (4)
1. the high-performance transducer of anti-environmental form flexible cable, comprise cable core, insulating barrier, it is characterized in that: described cable core is by several master cores, by-pass core and fire-retardant filler form, described master core is evenly distributed on the cable core center, described by-pass core is centered around around the described master core, described master core is the main transmission line road, the conductor of described master core is enclosed with composite insulation layer and metal screen layer outward successively, described by-pass core is the neutral line, constitute by conductor and the insulating barrier that is wrapped on the conductor, be filled with the fire-retardant filler of non-hygroscopic between described master core and the by-pass core, described cable core is established inner covering outward successively, composite shielding layer and external sheath layer.
2. according to the described high-performance transducer of anti-environmental form flexible cable of claim 1, it is characterized in that: described screen has adopted copper wire to twine the structure that adds the copper strips shielding, and the shielding rejection coefficient is less than 0.03.
3. according to the described high-performance transducer of anti-environmental form flexible cable of claim 1, it is characterized in that: described cable conductor adopts 5 class tin-coated copper conductors.
4. according to the described high-performance transducer of anti-environmental form flexible cable of claim 1, it is characterized in that: described external sheath layer has adopted high performance LSOH anti-flaming environmental protection macromolecule TPU material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200857986U CN201994131U (en) | 2011-03-28 | 2011-03-28 | Environment-resistant high-performance flexible cable for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200857986U CN201994131U (en) | 2011-03-28 | 2011-03-28 | Environment-resistant high-performance flexible cable for frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994131U true CN201994131U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200857986U Expired - Fee Related CN201994131U (en) | 2011-03-28 | 2011-03-28 | Environment-resistant high-performance flexible cable for frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751033A (en) * | 2012-07-27 | 2012-10-24 | 山东华凌电缆有限公司 | Variable frequency cable for transformer station |
| CN103854727A (en) * | 2013-08-26 | 2014-06-11 | 安徽华星电缆集团有限公司 | Environment-friendly cable for car |
-
2011
- 2011-03-28 CN CN2011200857986U patent/CN201994131U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751033A (en) * | 2012-07-27 | 2012-10-24 | 山东华凌电缆有限公司 | Variable frequency cable for transformer station |
| CN102751033B (en) * | 2012-07-27 | 2014-10-08 | 山东华凌电缆有限公司 | Variable frequency cable for transformer station |
| CN103854727A (en) * | 2013-08-26 | 2014-06-11 | 安徽华星电缆集团有限公司 | Environment-friendly cable for car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20160328 |