CN101071656A - Frequency variable cable - Google Patents
Frequency variable cable Download PDFInfo
- Publication number
- CN101071656A CN101071656A CN 200710022430 CN200710022430A CN101071656A CN 101071656 A CN101071656 A CN 101071656A CN 200710022430 CN200710022430 CN 200710022430 CN 200710022430 A CN200710022430 A CN 200710022430A CN 101071656 A CN101071656 A CN 101071656A
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- cable
- cores
- frequency
- armour
- screen
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- 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.)
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Abstract
The invention is a variable frequency cable, relating to the field of wire and cable technique, comprising three main wire cores, where the three cores are made into a cable and then lapped with inner jacket, there are fillings between the inner jacket and the three cores, the inner jacket is externally equipped with screening layer and outer jacket, an armouring layer is arranged between the screening layer and the outer jacket, the armouring layer is separated from the screening layer by isolating sleeve, and the armouring layer radially protects the cable and simultaneously plays a role of complementing electromagnetic wave screening.
Description
Technical field
The present invention relates to technical field of electric wires and cables, refer in particular to a kind of frequency-changing cable.
Background technology
The special-purpose frequency-changing cable of general 1.8/3KV and following variable-frequency motor, adopt total shielding behind every eradication edge core stranding, structure can adopt copper wire copper strips combination shielding, copper wire braid shielded, copper strips shielding, the shielding of copper wire braiding copper strips etc., as Chinese patent 03221286.0,200520075394.3,200520075395.8, the cable of this shielding mode can anti-electromagnetic induction, imperfect earth and power line conducted interference reduce inductance, prevent that induced electromotive force is excessive.Screen had both played and had suppressed the externally effect of emission of electromagnetic wave, can be used as the passage of short circuit current again, can play the protective effect of neutral core.The deficiency that exists is that frequency-changing cable in use often is subjected to footpath outward force effect, owing to all radially mechanical protection layer is not set, cable is radially fragile in the use, and in addition, the electromagnetic interference between each phase core also can further improve.
Summary of the invention
The present invention is just in order to overcome above-mentioned deficiency; a kind of frequency-changing cable that radially is equipped with mechanical protection layer is provided; this radially protective layer on the one hand can anti-radial force; can strengthen shield effectiveness on the other hand; main innovation is to set up the radially protective layer of an armour as cable outside the screen of formations such as copper wire copper strips; specifically be achieved like this: frequency-changing cable; comprise three master cores; wrapped inner sheath behind the three core strandings; be filled with inserts between inner sheath and three cores; inner sheath is equipped with screen and oversheath outward, it is characterized in that being equipped with armour between screen and oversheath, separates with separation sleeve between described armour and screen.This armour is made by galvanized steel strip; steel-tape armouring mainly is the radially mechanical protection layer as cable; it also plays the total shielding action of additivity simultaneously; particularly steel-tape armouring and copper wire, copper strips shielding; two kinds of different shielding materials have been adopted; play certain complementation on electromagnetic wave shielding, shield effectiveness is better.
Three master cores of the present invention are made of conductor, insulating barrier, sub-shield, protecting pipe from the inside to the outside, promptly outside the power line core insulation, also be equipped with shielding, extrude sheath after every eradication edge core shielding, stranding again is because the interchangeability of lead has better electromagnetic compatibility, the electromagnetic interference that suppresses each phase power core is played a role, can offset the odd frequency in the high order harmonic component, improve the anti-interference of variable-frequency motor private cable, reduce the electromagnetic radiation in the whole built-in system.
The present invention radially is protected cable by adding armour; armour plays complementation to electromagnetic wave shielding simultaneously; by three master cores are added sub-shield and sheath, improve the anti-interference of cable again, reduced the electromagnetic radiation in the whole built-in system.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Frequency-changing cable, three master cores are made of conductor 1, insulating barrier 2, sub-shield 3, protecting pipe 4 from the inside to the outside, wrapped inner sheath 5 behind the three core strandings, be filled with inserts 10 between inner sheath 5 and three cores, inner sheath 5 outer screen 6, separation sleeve 7, galvanized steel strip armour 8 and the oversheaths 9 of being equipped with successively.
Claims (3)
1. frequency-changing cable comprises three master cores, wrapped inner sheath behind the three core strandings, be filled with inserts between inner sheath and three cores, inner sheath is equipped with screen and oversheath outward, it is characterized in that being equipped with armour between screen and oversheath, separates with separation sleeve between described armour and screen.
2. frequency-changing cable according to claim 1 is characterized in that armour is a galvanized steel strip.
3. frequency-changing cable according to claim 1 and 2 is characterized in that three master cores are made of conductor, insulating barrier, sub-shield, protecting pipe from the inside to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022430 CN101071656A (en) | 2007-05-10 | 2007-05-10 | Frequency variable cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710022430 CN101071656A (en) | 2007-05-10 | 2007-05-10 | Frequency variable cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101071656A true CN101071656A (en) | 2007-11-14 |
Family
ID=38898796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710022430 Pending CN101071656A (en) | 2007-05-10 | 2007-05-10 | Frequency variable cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101071656A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494095B (en) * | 2008-12-15 | 2011-06-08 | 安徽滨江电缆股份有限公司 | Mobile tensile type frequency-changing cable |
| CN102110494A (en) * | 2011-03-22 | 2011-06-29 | 山东华凌电缆有限公司 | Cable for charging electric automobile |
| CN102610315A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Intelligent cable |
| CN102751037A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Medium-voltage frequency conversion cable for ship |
| CN103854761A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Antimagnetic cable for ship |
| CN104715813A (en) * | 2015-02-27 | 2015-06-17 | 安徽华天电缆有限公司 | Cross-linked polyethylene insulated flat current-guiding cable |
-
2007
- 2007-05-10 CN CN 200710022430 patent/CN101071656A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494095B (en) * | 2008-12-15 | 2011-06-08 | 安徽滨江电缆股份有限公司 | Mobile tensile type frequency-changing cable |
| CN102110494A (en) * | 2011-03-22 | 2011-06-29 | 山东华凌电缆有限公司 | Cable for charging electric automobile |
| CN102610315A (en) * | 2012-03-30 | 2012-07-25 | 无锡市远登电缆有限公司 | Intelligent cable |
| CN102751037A (en) * | 2012-07-20 | 2012-10-24 | 安徽江淮电缆集团有限公司 | Medium-voltage frequency conversion cable for ship |
| CN102751037B (en) * | 2012-07-20 | 2016-02-10 | 安徽江淮电缆集团有限公司 | A kind of medium-voltage frequency conversion cable for ship |
| CN103854761A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Antimagnetic cable for ship |
| CN104715813A (en) * | 2015-02-27 | 2015-06-17 | 安徽华天电缆有限公司 | Cross-linked polyethylene insulated flat current-guiding cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Open date: 20071114 |