CN103903812A - High-flexibility deflection resisting frequency conversion flexible cable - Google Patents
High-flexibility deflection resisting frequency conversion flexible cable Download PDFInfo
- Publication number
- CN103903812A CN103903812A CN201410135217.3A CN201410135217A CN103903812A CN 103903812 A CN103903812 A CN 103903812A CN 201410135217 A CN201410135217 A CN 201410135217A CN 103903812 A CN103903812 A CN 103903812A
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- Prior art keywords
- cable core
- frequency conversion
- cable
- conductor
- flexible cable
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 241000108463 Hygrophila <snail> Species 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 238000009954 braiding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000005288 electromagnetic effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a high-flexibility deflection resisting frequency conversion flexible cable. The high-flexibility deflection resisting frequency conversion flexible cable comprises a cable core formed by twisting a plurality of power cable core bodies, the gap of the cable core is filled with a filling layer, an isolating layer is arranged outside the cable core, a main shielding layer is arranged outside the isolating layer, and an outer sheath is arranged on the outmost layer of the cable core in an extruding mode. Each power cable core body is composed of a conductor, an insulating layer and a split-phase shielding layer, wherein the insulating layer and the split-phase shielding layer wrap the conductor in an extruding mode in sequence. According to the high-flexibility deflection resisting frequency conversion flexible cable, a magnetic field produced around a current can be shielded in the cable, the interference to the outside is prevented, and the sensitivity of a front end protection device in the single-phase short circuit process is improved; the overvoltage caused by the electromagnetic effect of the powerful lightning current can be eliminated, and damage or breakdown of the insulating layers can be prevented.
Description
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Technical field
The invention belongs to power cable field, be specifically related to the anti-frequency conversion flexible cable that deflects of a kind of high flexibility.
Background technology
Along with the high speed development of modern industry automatic high-speed control system, a series of other governing systems such as frequency control has advantages of speed-regulating range width, adjusting speed accuracy is high, through-put power is stable, high reliability, good energy-conserving effect can not be compared, thereby, obtain application more and more widely at the every field variable-frequency control technique of modern industry.Special cable for frequency converter (abbreviation frequency-changing cable) is requisite significant components in the drive system of frequency converter and supporting electric element composition, and common frequency-changing cable can not be useful in frequent bending and mobile occasion.
Summary of the invention
The object of this invention is to provide the anti-frequency conversion flexible cable that deflects of a kind of high flexibility, electric current can be produced to magnetic field shielding in cable around, prevent from externally producing and disturbing, improve the sensitivity of head end protective device in the time of single-phase short circuit; The galvanomagnetic effect that can eliminate powerful lightning current produces overvoltage, can prevent the damage of insulating barrier or puncture.
A kind of high flexibility of the present invention is anti-deflects frequency conversion flexible cable, comprises cable core, and its cable core is by many stranded the forming of power core; Cable core gap is provided with packed layer, and cable core is provided with separator outward, and separator is provided with total screen cable core outermost layer outward and extrudes oversheath; Described power core by conductor and the insulating barrier, the phase-splitting screen that are extruded in successively outside conductor form.
Further improve, described conductor adopts soft copper wire synnema to carry out the stranded conductor of multiple strand again, and strand twists again to identical with synnema direction.
Further improve, described phase-splitting screen and total screen adopt copper wire or tinned copper wire braiding to form.
Beneficial effect of the present invention is:
The one,, Cable Bending Radius of the present invention can reach 3-5 times of the outside diameter of cable; The 2nd,, cable flexible of the present invention comes and goes number of times higher than 50000 times, is specially adapted to frequent bending and mobile occasion; The 3rd,, electric current can be produced to magnetic field shielding in cable around, prevent from externally producing and disturbing, improve the sensitivity of head end protective device in the time of single-phase short circuit; The 4th,, the galvanomagnetic effect that can eliminate powerful lightning current produces overvoltage, can prevent the damage of insulating barrier or puncture.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of high flexibility of the present invention is anti-deflects frequency conversion flexible cable, comprises cable core, and its cable core is by many stranded the forming of power core; Cable core gap is provided with packed layer 4, and cable core is provided with separator 5 outward, is provided with total screen 6 cable core outermost layers and extrudes oversheath 7 outside separator 5; Described power core is made up of conductor 1 and the insulating barrier 2, the phase-splitting screen 3 that are extruded in successively outside conductor 1.
Described conductor 1 adopts soft copper wire synnema to carry out the strand stranded conductor forming again again, and strand twists again to identical with synnema direction; The lay ratio that the strand bundle of described conductor 1 closes is 12～14 times, and the lay ratio that strand twists is again 8～14 times, and outer lay ratio should be not more than internal layer lay ratio; Described phase-splitting screen 2 and total screen 6 adopt copper wire or tinned copper wire braiding to form.
The invention provides the anti-frequency conversion flexible cable that deflects of a kind of high flexibility; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improve and also should be considered as protection scope of the present invention.
Claims (4)
1. high flexibility is anti-deflects a frequency conversion flexible cable, it is characterized in that, comprise cable core, its cable core is by many stranded the forming of power core; Cable core gap is provided with packed layer (4), and cable core is provided with separator (5) outward, is provided with total screen (6) cable core outermost layer and extrudes oversheath (7) outside separator (5); Described power core is by conductor (1) and be extruded in successively the outer insulating barrier (2) of conductor (1), phase-splitting screen (3) forms.
2. high flexibility according to claim 1 is anti-deflects frequency conversion flexible cable, it is characterized in that, described conductor (1) adopts soft copper wire synnema to carry out the strand stranded conductor forming again again, and strand twists again to identical with synnema direction.
3. high flexibility according to claim 2 is anti-deflects frequency conversion flexible cable, it is characterized in that, the lay ratio that the strand bundle of described conductor (1) closes is 12～14 times, and the lay ratio that strand twists is again 8～14 times, and outer lay ratio should be not more than internal layer lay ratio.
4. high flexibility according to claim 1 is anti-deflects frequency conversion flexible cable, it is characterized in that, described phase-splitting screen (2) and total screen (6) adopt copper wire or tinned copper wire braiding to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135217.3A CN103903812A (en) | 2014-04-04 | 2014-04-04 | High-flexibility deflection resisting frequency conversion flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135217.3A CN103903812A (en) | 2014-04-04 | 2014-04-04 | High-flexibility deflection resisting frequency conversion flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103903812A true CN103903812A (en) | 2014-07-02 |
Family
ID=50995085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410135217.3A Pending CN103903812A (en) | 2014-04-04 | 2014-04-04 | High-flexibility deflection resisting frequency conversion flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103903812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683763A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | Cable used for conduction charging system of electric vehicle |
| CN112857603A (en) * | 2021-03-02 | 2021-05-28 | 远东电缆有限公司 | High-temperature-resistant cable for wind power and monitoring device thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095643A (en) * | 1959-02-27 | 1963-07-02 | Submarine Cables Ltd | Method of manufacturing submarine cables |
| CN2904217Y (en) * | 2006-01-13 | 2007-05-23 | 安徽华菱电缆集团有限公司 | High fire retarding high-pressure frequency change cable |
| CN201984892U (en) * | 2011-03-29 | 2011-09-21 | 浙江新华电缆有限公司 | Frequency conversion cable |
| CN202217525U (en) * | 2011-09-07 | 2012-05-09 | 广州裕泽线缆有限公司 | Anti-bending rubber-sheathed soft cable for elevators |
| CN102969069A (en) * | 2012-12-10 | 2013-03-13 | 南洋电缆集团有限公司 | Waterproof greasy-dirt-resisting 10 kV middle-voltage transducer cable and method |
| CN203799742U (en) * | 2014-04-04 | 2014-08-27 | 无锡市沪安电线电缆有限公司 | High-flexibility anti-deflection variable-frequency flexible cable |
-
2014
- 2014-04-04 CN CN201410135217.3A patent/CN103903812A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095643A (en) * | 1959-02-27 | 1963-07-02 | Submarine Cables Ltd | Method of manufacturing submarine cables |
| CN2904217Y (en) * | 2006-01-13 | 2007-05-23 | 安徽华菱电缆集团有限公司 | High fire retarding high-pressure frequency change cable |
| CN201984892U (en) * | 2011-03-29 | 2011-09-21 | 浙江新华电缆有限公司 | Frequency conversion cable |
| CN202217525U (en) * | 2011-09-07 | 2012-05-09 | 广州裕泽线缆有限公司 | Anti-bending rubber-sheathed soft cable for elevators |
| CN102969069A (en) * | 2012-12-10 | 2013-03-13 | 南洋电缆集团有限公司 | Waterproof greasy-dirt-resisting 10 kV middle-voltage transducer cable and method |
| CN203799742U (en) * | 2014-04-04 | 2014-08-27 | 无锡市沪安电线电缆有限公司 | High-flexibility anti-deflection variable-frequency flexible cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683763A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | Cable used for conduction charging system of electric vehicle |
| CN112857603A (en) * | 2021-03-02 | 2021-05-28 | 远东电缆有限公司 | High-temperature-resistant cable for wind power and monitoring device thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |