CN2757302Y - Power input cable of frequency variable motor - Google Patents
Power input cable of frequency variable motor Download PDFInfo
- Publication number
- CN2757302Y CN2757302Y CN 200420119058 CN200420119058U CN2757302Y CN 2757302 Y CN2757302 Y CN 2757302Y CN 200420119058 CN200420119058 CN 200420119058 CN 200420119058 U CN200420119058 U CN 200420119058U CN 2757302 Y CN2757302 Y CN 2757302Y
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- CN
- China
- Prior art keywords
- cable core
- shielding
- cable
- oversheath
- copper
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a power input cable of a frequency-conversion electric machine. Three main conductors and three auxiliary conductors are contained in a cable core. An inner sheath, a shielding layer winded by copper wires and a shielding and armouring layer covered by copper belts or a shielding and armouring layer with copper (or aluminum) pipes are orderly arranged between the cable core and an oversheath. The utility model has the advantages of favorable electric transmission performance, small electric energy loss and good shielding and insulating performance. Radiation harmonic waves are decreased, disturbance to a light current circuit of an output system of a frequency converter is decreased and normal signal control is realized.
Description
Technical field
The utility model relates to a kind of power cable, the electric power input cable that especially a kind of variable-frequency motor is used.
Background technology
The electric power input cable of existing variable-frequency motor mostly is common cable, uses this cable electric energy loss big, and dry sound is big, radiate harmonic is big, disturbs the light current circuit of frequency convertor output system, also near the electronic instrument the influence, make control signal misoperation often occur, influence is control normally.
Summary of the invention
In order to overcome the deficiency of being brought when existing common cable is made the electric power input cable of variable-frequency motor, the electric power input cable that the utility model provides a kind of new variable-frequency motor to use, can reduce electric energy loss, reduce dry sound, reduce radiate harmonic, alleviate interference the light current circuit of frequency convertor output system.
A kind of variable-frequency motor that the utility model provides comprises cable core (10) and oversheath (9) with electric power input cable, cable core (10) comprises three leading bodies (1) and bag is carried out at three belting layers (5) outside leading body, be provided with three auxiliary-conductors (2) that the branch corresponding with three leading bodies (1) position is arranged in the cable core (10), the shielding that between cable core (10) and oversheath (9), sets gradually screen (7) that inner sheath (6), copper wire twine and the copper strips bag shoe armour (8) of holding concurrently as the neutral line.
The another kind of variable-frequency motor electricity consumption input cable that the utility model provides comprises cable core (19) and oversheath (18), cable core comprises three leading bodies (11) and the belting layer (15) of bag shoe outside three leading bodies, be provided with three auxiliary-conductors (12) that the branch corresponding with three leading bodies (11) position is arranged in the cable core (19), between cable core (19) and oversheath (18), set gradually inner sheath (16), copper pipe or the double armour (17) of aluminum pipe shielding as the neutral line.
The beneficial effects of the utility model are: the electrical transmission performance is good, the electric field equilibrium, and electric energy loss is little, shielding, insulation property are good, radiate harmonic reduces, and reduction realizes the normal control of signal to the interference of the light current circuit of frequency convertor output system and near the interference of electronic instrument; And uniting two into one of screen and armour becomes one procedure with original two procedures, also saved raw material; Because the neutral line branch of three leading bodies is arranged and ground connection respectively, the balanced electric current of every leading body guarantees that three-phase current evenly transmits.
Description of drawings
Fig. 1, Fig. 2 are the cross sectional representation of two kinds of technical schemes of the utility model.
In Fig. 1,1. leading body, 2. auxiliary-conductor, 3. auxiliary-conductor insulating barrier, 4. leading body insulating barrier, the 5. belting layer of cable core, 6. inner sheath, the 7. screen that twines of copper wire, 8. hold concurrently armour, 9. oversheath, 10. cable core of the shielding that coats of copper strips.
In Fig. 2,11. leading bodies, 12. auxiliary-conductors, 13. auxiliary-conductor insulating barriers, 14. leading body insulating barriers, the belting layer of 15. cable cores, 16. inner sheaths, the double armour of 17. copper pipes shielding, 18. oversheaths, 19. cable cores.
Embodiment
The conductor single line that leading body and auxiliary-conductor all adopt copper free wire to make in two kinds of technical schemes of the present utility model through multilayer bundle hinge, is made flexible conductor; The insulating barrier of leading body and auxiliary-conductor all adopts heat-resisting cross-linking radiation polyolefin insulation material to make; The belting layer of cable core all adopts resistant to elevated temperatures alkali-free glass silk ribbon to make; Inner sheath, oversheath adopt the halogen-free and low-smoke flame-retardant polyolefin material.The screen of first technical scheme (7) adopts copper wire to twine, shield armour (8) the employing copper strips of holding concurrently and coats; The shielding of second technical scheme armour of holding concurrently adopts inferior arc welding embossing copper pipe or aluminum pipe.
Claims (2)
1, a kind of variable-frequency motor is imported cable with electric power, comprise cable core and oversheath, cable core comprises three leading bodies and is coated on the outer belting layer of three leading bodies, it is characterized in that being provided with in the cable core three auxiliary-conductors that the branch corresponding with three leading body positions is arranged, between cable core and oversheath, set gradually shielding that screen that inner sheath, copper wire twine and copper strips the coat armour of holding concurrently as the neutral line.
2, a kind of variable-frequency motor is imported cable with electric power, comprise cable core and oversheath, cable core comprises three leading bodies and is coated on the outer belting layer of three leading bodies, it is characterized in that being provided with in the cable core three auxiliary-conductors that the branch corresponding with three leading body positions is arranged, between cable core and oversheath, set gradually inner sheath, copper pipe or the aluminum pipe shielding armour of holding concurrently as the neutral line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420119058 CN2757302Y (en) | 2004-12-27 | 2004-12-27 | Power input cable of frequency variable motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420119058 CN2757302Y (en) | 2004-12-27 | 2004-12-27 | Power input cable of frequency variable motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757302Y true CN2757302Y (en) | 2006-02-08 |
Family
ID=35965687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420119058 Expired - Fee Related CN2757302Y (en) | 2004-12-27 | 2004-12-27 | Power input cable of frequency variable motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757302Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834027A (en) * | 2010-05-27 | 2010-09-15 | 扬州光明电缆有限公司 | Low-smoke zero-halogen low-toxicity light power cable for ships and warships |
| CN101647073B (en) * | 2007-02-23 | 2011-12-14 | 普雷斯曼电缆和系统有限公司 | Power cable with high torsional resistance |
| CN102354570A (en) * | 2011-09-19 | 2012-02-15 | 中利科技集团股份有限公司 | Water-proof cable for remote power supply |
| CN103886936A (en) * | 2014-02-25 | 2014-06-25 | 安徽怡和电缆有限公司 | Frequency converter cable |
| CN103903714A (en) * | 2014-03-03 | 2014-07-02 | 安徽慧艺线缆集团有限公司 | High flame retardant frequency conversion tensile resistant cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
-
2004
- 2004-12-27 CN CN 200420119058 patent/CN2757302Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101647073B (en) * | 2007-02-23 | 2011-12-14 | 普雷斯曼电缆和系统有限公司 | Power cable with high torsional resistance |
| CN101834027A (en) * | 2010-05-27 | 2010-09-15 | 扬州光明电缆有限公司 | Low-smoke zero-halogen low-toxicity light power cable for ships and warships |
| CN102354570A (en) * | 2011-09-19 | 2012-02-15 | 中利科技集团股份有限公司 | Water-proof cable for remote power supply |
| CN103886936A (en) * | 2014-02-25 | 2014-06-25 | 安徽怡和电缆有限公司 | Frequency converter cable |
| CN103903714A (en) * | 2014-03-03 | 2014-07-02 | 安徽慧艺线缆集团有限公司 | High flame retardant frequency conversion tensile resistant cable |
| CN103903722A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Low smoke halogen-free cable |
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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: 20060208 Termination date: 20131227 |