CN201886800U - Environment-friendly frequency conversion cable with composite conductor - Google Patents
Environment-friendly frequency conversion cable with composite conductor Download PDFInfo
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- CN201886800U CN201886800U CN2010206221804U CN201020622180U CN201886800U CN 201886800 U CN201886800 U CN 201886800U CN 2010206221804 U CN2010206221804 U CN 2010206221804U CN 201020622180 U CN201020622180 U CN 201020622180U CN 201886800 U CN201886800 U CN 201886800U
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Abstract
The utility model relates to a frequency conversion cable, in particular to an environment-friendly frequency conversion cable with a composite conductor. The environment-friendly frequency conversion cable adopts a copper and aluminum composite conductor structure, is capable of realizing performances of high electric conduction, high flame retardance, zero toxicity, environmental protection and the like, further can effectively save copper resources and reduce cost, the conductor is low in contact resistance and high in mechanical strength, and the cable is high in light transmittance when burning, has excellent electric conduction property, flame retardance and environmental protection property and electrolytic corrosion resistance, is reasonable in price, long in service life, light in weight and convenient in transport and installation and reduces transport and installation costs. As the cable adopts a symmetric structure and electric fields of the cable are balanced in distribution, metal shielding property of the cable is high, the cable is capable of effectively suppressing electromagnetic interference of higher harmonics, which are generated by a frequency conversion power supply, to external power and control circuits, and electrical insulation strength under high-frequency voltage can be increased. The frequency conversion cable increases comprehensive cost performance by the aid of the environment-friendly composite conductor structure, can replace an existing frequency conversion cable with a copper conductor, and meets requirements of actual operation.
Description
Technical field
The utility model relates to a kind of frequency-changing cable, especially a kind of composite conductor environment-friendly type frequency-changing cable.
Background technology
Frequency-changing cable is the power cable of a kind of special purpose of producing along with the extensive use of converter technique in the dynamo-electric field in recent years, in addition, as a technological revolution in the Mechatronic Systems, the application of variable-frequency control technique is more and more universal, corresponding with it, the power cable that connects between frequency-variable controller and the variable-frequency motor has also been proposed higher specification requirement, to avoid high order harmonic component that alternating current circuit in service produced to other current supply circuit, control loop produces electromagnetic interference, or be subjected to the interference of external electromagnetic ripple, the appearance of for this reason arising at the historic moment the frequency converter private cable.The frequency-changing cable of existing kind, its conductor all adopts stranded type soft copper conductor, it is little that it has resistivity with respect to the aluminium conductor cable, the intensity height, the characteristics that loaded current is big, but be subjected to the restriction that copper ore resource reduces situation day by day, the price of copper metal is also more and more higher, cause the Financial cost of cables manufacturing sharply to rise, make manufacturing enterprise and user be difficult to bear, and aluminium conductor is in light weight because of it, and price has only 1/3 of copper conductor, cable cost is low, so becoming the optional material of second class that is only second to copper, it is widely applied in common power cable, but the resistivity of aluminium conductor is higher, and electric conductivity is low, mechanical strength is low, contact resistance is big, Weldability is poor, easily oxidation, life-span is short, so do not adopted by general frequency-changing cable.In addition, what the insulating barrier of existing frequency-changing cable and restrictive coating plastic material adopted mostly is common crosslinked polyethylene, Halogen such as polyvinyl chloride or flame-proof polyvinyl chloride material, these materials are in raw material production, cables manufacturing, can pollute environment structure in the use and destroy, and when cable is met flame combustion, can produce a large amount of toxic gases, constitute serious harm for personnel's life, in addition, present existing flame retardant type frequency-changing cable, but reckon without the economy of conductor, on the high side, need a kind of composite conductor environment-friendly type frequency-changing cable, it can take into account the environmental protection flame retardant performance and the high electrical conductivity energy of cable, can also effectively save the copper resource for this reason, reduce the cable Financial cost, improve the comprehensive price ratio of frequency-changing cable, and its electric conductivity and flame-proof environmental protection excellent performance, reasonable price, can substitute existing copper conductor frequency-changing cable, satisfy the needs of actual conditions with this.
The utility model content
A kind of composite conductor environment-friendly type frequency-changing cable of the present utility model, because of it adopts the structure of copper aluminium composite conductor, so can take into account high conduction performance, high flame resistance, the asepsis environment-protecting performance of cable, can also effectively save the copper resource, reduce the cable Financial cost; Its conductor contact resistance is little, mechanical strength height, light transmittance height during cable fire, cable conduction performance, flame-proof environmental protection performance and the excellent performance of anti-the couple corrosion, reasonable price, the life-span is long, and in light weight, convenient transportation and construction and installation, thus also reduced transportation and installation cost; Again because its cable adopts the structure that is symmetrically distributed, so its Electric Field Distribution equilibrium; In addition because its metallic shield performance height, so can suppress effectively high order harmonic component that variable frequency power supply produces to external world power and control circuit cause electromagnetic interference, and can improve the electric insulation intensity under the high frequency voltage; To sum up, adopt composite conductor environment-friendly type structure to improve the comprehensive price ratio of frequency-changing cable, can substitute existing copper conductor frequency-changing cable, and satisfy the needs of actual motion.
The technical scheme that the utility model adopted is:
A kind of composite conductor environment-friendly type frequency-changing cable, comprise the cable core that constitutes by phase line and zero line, it is characterized in that: phase conductor and zero line conductor adopt clad welded method process drawing to form copper-clad aluminum conductor, and press circular composite conductor structure by stranded formation, the conductance of this composite conductor structure is bigger than aluminium conductor, and its proportion is littler than copper conductor; Phase conductor and zero line conductor are provided with outward by coating the insulating barrier that irradiation crosslinking type low-smoke halogen-free polyolefin insulation material forms; The gap location of cable core inside is provided with the fire-retardant filled core that forms by the filling and flame-retardant glass cord; Cable core is provided with outward by the overlapping wrapped fire-retardant belting layer that the sized glass fibre band forms of tightening; Fire-retardant belting layer is provided with metal screen layer outward; Metal screen layer is provided with outward by coating the outer jacket that low-smoke halide-free fireproof composite polyolefine material forms.
Described composite conductor environment-friendly type frequency-changing cable, overlapping rate 〉=20% of putting up of sized glass fibre band of the outer set fire-retardant belting layer of cable core.
Described composite conductor environment-friendly type frequency-changing cable, cable core is outer to form fire-retardant belting layer by overlapping wrapped the tightening of two-layer sized glass fibre band.
Described composite conductor environment-friendly type frequency-changing cable, the zero line of cable core is divided into three equal parts and is placed in the latasuture of three phase lines, zero line and the phase line mutual stranded formation cable core of structure by being symmetrically distributed.
Described composite conductor environment-friendly type frequency-changing cable, the phase line of cable core and zero line are the round wire cored structure.
Described composite conductor environment-friendly type frequency-changing cable, the outer set metal screen layer of cable core forms by copper wire braid shielded structure or the overlapping wrapped shielding construction of copper strips, or by it the two be combined to form.
Like this when powered operation, a kind of composite conductor environment-friendly type frequency-changing cable of the present utility model, phase conductor and zero line conductor adopt the copper-clad aluminum conductor that forms by clad welded method process drawing, and press circular composite conductor structure by stranded formation, the conductance of this composite conductor structure is bigger than aluminium conductor, be 77% of copper conductor, and its proportion is littler than copper conductor, has only 37%～40% of copper conductor; Price only is 50% of a copper conductor; Therefore under the identical power load of carrying, its cable integrated cost has only copper core cable 60%, is a kind of desirable economical conductor cable.
A kind of composite conductor environment-friendly type frequency-changing cable of the present utility model, because of it adopts the structure of copper aluminium composite conductor, so can take into account high conduction performance, high flame resistance, the asepsis environment-protecting performance of cable, can also effectively save the copper resource, reduce the cable Financial cost; Its conductor contact resistance is little, mechanical strength height, light transmittance height during cable fire, cable conduction performance, flame-proof environmental protection performance and the excellent performance of anti-the couple corrosion, reasonable price, the life-span is long, and in light weight, convenient transportation and construction and installation, thus also reduced transportation and installation cost; Again because its cable adopts the structure that is symmetrically distributed, so its Electric Field Distribution equilibrium; In addition because its metallic shield performance height, so can suppress effectively high order harmonic component that variable frequency power supply produces to external world power and control circuit cause electromagnetic interference, and can improve the electric insulation intensity under the high frequency voltage; To sum up, adopt composite conductor environment-friendly type structure to improve the comprehensive price ratio of frequency-changing cable, can substitute existing copper conductor frequency-changing cable, and satisfy the needs of actual motion.
Description of drawings
Fig. 1 is a kind of composite conductor environment-friendly type frequency-changing cable cross-section structure of the present utility model.
Wherein, 1 is phase conductor, and 2 is the zero line conductor, and 3 is insulating barrier, and 4 is fire-retardant filled core, and 5 is fire-retardant belting layer, and 6 is metal screen layer, and 7 is outer jacket.
Embodiment
As shown in Figure 1, a kind of composite conductor environment-friendly type frequency-changing cable, comprise the cable core that constitutes by phase line and zero line, it is characterized in that: phase conductor 1 and zero line conductor 2 adopt clad welded method process drawing to form copper-clad aluminum conductor, and press circular composite conductor structure by stranded formation, the conductance of this composite conductor structure is bigger than aluminium conductor, and its proportion is littler than copper conductor; Phase conductor 1 and zero line conductor 2 outer being provided with by coating the insulating barrier 3 that irradiation crosslinking type low-smoke halogen-free polyolefin insulation material forms; The gap location of cable core inside is provided with the fire-retardant filled core 4 that forms by the filling and flame-retardant glass cord; Cable core is provided with outward by with the overlapping wrapped fire-retardant belting layer 5 that two-layer sized glass fibre band forms of tightening of 〉=20% the rate of putting up; The fire-retardant belting layer 5 outer metal screen layers 6 that form by copper wire braid shielded structure that are provided with; Metal screen layer 6 outer being provided with by coating the outer jacket 7 that low-smoke halide-free fireproof composite polyolefine material forms; The zero line of cable core is divided into three equal parts and is placed in the latasuture of three phase lines, zero line and the phase line mutual stranded formation cable core of structure by being symmetrically distributed; The phase line of cable core and zero line are the round wire cored structure.
With embodiment 1, different is that the outer set metal screen layer 6 of cable core forms by the overlapping wrapped shielding construction of copper strips.
With embodiment 1, different is outer set metal screen layer 6 being combined to form by copper wire braid shielded structure and the overlapping wrapped shielding construction of copper strips of cable core.
Like this when powered operation, a kind of composite conductor environment-friendly type frequency-changing cable of the present utility model, phase conductor and zero line conductor adopt the copper-clad aluminum conductor that forms by clad welded method process drawing, and press circular composite conductor structure by stranded formation, the conductance of this composite conductor structure is bigger than aluminium conductor, be 77% of copper conductor, and its proportion is littler than copper conductor, has only 37%～40% of copper conductor; Price only is 50% of a copper conductor; Therefore under the identical power load of carrying, its cable integrated cost has only copper core cable 60%, is a kind of desirable economical conductor cable.
A kind of composite conductor environment-friendly type frequency-changing cable of the present utility model, because of it adopts the structure of copper aluminium composite conductor, so can take into account high conduction performance, high flame resistance, the asepsis environment-protecting performance of cable, can also effectively save the copper resource, reduce the cable Financial cost; Its conductor contact resistance is little, mechanical strength height, light transmittance height during cable fire, cable conduction performance, flame-proof environmental protection performance and the excellent performance of anti-the couple corrosion, reasonable price, the life-span is long, and in light weight, convenient transportation and construction and installation, thus also reduced transportation and installation cost; Again because its cable adopts the structure that is symmetrically distributed, so its Electric Field Distribution equilibrium; In addition because its metallic shield performance height, so can suppress effectively high order harmonic component that variable frequency power supply produces to external world power and control circuit cause electromagnetic interference, and can improve the electric insulation intensity under the high frequency voltage; To sum up, adopt composite conductor environment-friendly type structure to improve the comprehensive price ratio of frequency-changing cable, can substitute existing copper conductor frequency-changing cable, and satisfy the needs of actual motion.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here can't give exhaustive to all execution modes.Everyly belong to the row that conspicuous variation that the technical solution of the utility model extends out or change still are in protection range of the present utility model.
Claims (6)
1. composite conductor environment-friendly type frequency-changing cable, comprise the cable core that constitutes by phase line and zero line, it is characterized in that: phase conductor (1) and zero line conductor (2) adopt clad welded method process drawing to form copper-clad aluminum conductor, and press circular composite conductor structure by stranded formation, the conductance of this composite conductor structure is bigger than aluminium conductor, and its proportion is littler than copper conductor; Phase conductor (1) and zero line conductor (2) are outer to be provided with by coating the insulating barrier (3) that irradiation crosslinking type low-smoke halogen-free polyolefin insulation material forms; The gap location of cable core inside is provided with the fire-retardant filled core (4) that forms by the filling and flame-retardant glass cord; Cable core is provided with outward by the overlapping wrapped fire-retardant belting layer (5) that the sized glass fibre band forms of tightening; The outer metal screen layer (6) that is provided with of fire-retardant belting layer (5); Metal screen layer (6) is outer to be provided with by coating the outer jacket (7) that low-smoke halide-free fireproof composite polyolefine material forms.
2. composite conductor environment-friendly type frequency-changing cable according to claim 1 is characterized in that: overlapping rate 〉=20% of putting up of the sized glass fibre band of the outer set fire-retardant belting layer (5) of cable core.
3. composite conductor environment-friendly type frequency-changing cable according to claim 1 is characterized in that: cable core is outer to form fire-retardant belting layer (5) by overlapping wrapped the tightening of two-layer sized glass fibre band.
4. composite conductor environment-friendly type frequency-changing cable according to claim 1 is characterized in that: the zero line of cable core is divided into three equal parts and is placed in the latasuture of three phase lines, zero line and the phase line mutual stranded formation cable core of structure by being symmetrically distributed.
5. composite conductor environment-friendly type frequency-changing cable according to claim 1, it is characterized in that: the phase line of cable core and zero line are the round wire cored structure.
6. composite conductor environment-friendly type frequency-changing cable according to claim 1 is characterized in that: the outer set metal screen layer (6) of cable core forms by copper wire braid shielded structure or the overlapping wrapped shielding construction of copper strips, or by it the two be combined to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206221804U CN201886800U (en) | 2010-11-24 | 2010-11-24 | Environment-friendly frequency conversion cable with composite conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206221804U CN201886800U (en) | 2010-11-24 | 2010-11-24 | Environment-friendly frequency conversion cable with composite conductor |
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| Publication Number | Publication Date |
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| CN201886800U true CN201886800U (en) | 2011-06-29 |
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| CN2010206221804U Expired - Fee Related CN201886800U (en) | 2010-11-24 | 2010-11-24 | Environment-friendly frequency conversion cable with composite conductor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
| CN104123992A (en) * | 2014-08-13 | 2014-10-29 | 安徽德源电缆集团有限公司 | Three-core insulating sheath metal shielding power cable |
| CN105551602A (en) * | 2016-01-26 | 2016-05-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-iron rare earth aluminum alloy variable frequency cable and manufacturing method thereof |
| CN102881362B (en) * | 2011-07-15 | 2016-12-21 | 上海朗达电缆（集团）有限公司 | A kind of environment-friendlycopper-aluminum copper-aluminum composite cable and manufacture method |
| CN107230922A (en) * | 2017-06-07 | 2017-10-03 | 西安广源机电技术有限公司 | Roll flexible brush |
-
2010
- 2010-11-24 CN CN2010206221804U patent/CN201886800U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881362B (en) * | 2011-07-15 | 2016-12-21 | 上海朗达电缆（集团）有限公司 | A kind of environment-friendlycopper-aluminum copper-aluminum composite cable and manufacture method |
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
| CN103811109B (en) * | 2012-11-14 | 2016-06-29 | 湖北龙腾红旗电缆(集团)有限公司 | Low smoke and zero halogen anti-ultraviolet frequency-changing cable |
| CN104123992A (en) * | 2014-08-13 | 2014-10-29 | 安徽德源电缆集团有限公司 | Three-core insulating sheath metal shielding power cable |
| CN105551602A (en) * | 2016-01-26 | 2016-05-04 | 安徽蒙特尔电缆集团有限公司 | Environment-friendly high-iron rare earth aluminum alloy variable frequency cable and manufacturing method thereof |
| CN107230922A (en) * | 2017-06-07 | 2017-10-03 | 西安广源机电技术有限公司 | Roll flexible brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20131124 |