CN2745186Y - Anti-corona connecting cable for frequency conversion motor - Google Patents
Anti-corona connecting cable for frequency conversion motor Download PDFInfo
- Publication number
- CN2745186Y CN2745186Y CN 200420079362 CN200420079362U CN2745186Y CN 2745186 Y CN2745186 Y CN 2745186Y CN 200420079362 CN200420079362 CN 200420079362 CN 200420079362 U CN200420079362 U CN 200420079362U CN 2745186 Y CN2745186 Y CN 2745186Y
- Authority
- CN
- China
- Prior art keywords
- corona
- connecting cable
- frequency
- frequency conversion
- conversion motor
- 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
Links
Abstract
The utility model relates to an anti-corona connecting cable for a frequency conversion motor, belonging to the cable technical field. The cable makes the insulation structure of the connecting cable be a double-layer structure on the exterior surface of a conductor. The inner insulating layer adopts the anti-corona polyimide film coated with fluorinated ethylene propylene (FEP) to lap, and the outer insulating layer adopts the fluoroplastic to insulate and adopts silicon rubber to be a sheath. The utility model has advantages of simple and reasonable structure, easy manufacture, low cost, thin insulation, good anti-corona capability, high breakdown potential, large heat-proof exponent, excellent stability and reliability, good heat conductivity, strong insulated adhesiveness, fine damp proofing and chemistry proofing capability, etc. The anti-corona connecting cable for a frequency conversion motor can be widely applied to the communication, the navigation, the electronic countermeasure, the radio aid, the broadcast television and similar electronic device to transport the high-frequency and hyper-high-frequency signal. The anti-corona connecting cable for a frequency conversion motor can also be used for the field which requires high high-temperature resistant and anti-interference.
Description
Technical field
The utility model relates to the structure of a kind of variable-frequency motor with jump lead, belongs to the cable technology field.
Background technology
Current, energy problem becomes countries in the world stubborn problem the most day by day, and resource is increasing to the restrictive function of economic development.Countries in the world all are used as cardinal task and are grabbed energy-saving and cost-reducing, all in the new way of actively seeking energy savings, cutting down the consumption of energy.The 1980s, the fast development of extensive and very large scale integration technology, the retrofit technology of integrated circuit technique and high-voltage great-current technology organically combine, frequency converter has appearred, it realizes the self-control of motor operation frequency by the conversion to electric current, fixing mains frequency is changed into transformable frequency, simultaneously can also be with the supply voltage expanded range.Facts have proved, can realize energy-conservation more than 30% with the motor of converter technique manufacturing, therefore, frequency conversion becomes the most excellent energy-saving technical scheme, be to realize energy-conservation best-of-breed technology approach, become the mainstream development direction of power-saving technology, obtained applying rapidly, after the eighties 5 years, the annual growth of world's frequency control motor reached more than 14%.
Existing variable-frequency motor jump lead generally all is to be made of conductor, insulation and oversheath, on the cable core of the three-phase core stranding of conductor outer surface extruded insulation layer oversheath is set.Along with the rapid expansion that variable-frequency motor is used, variable-frequency motor jump lead problem in useful life but becomes increasingly conspicuous.Variable-frequency motor jump lead premature damage is recurrent thing, and the life-span that has has only 1-2, have in addition have only some months just to damage.Discover, the resistant to partial discharges (anti-corona) of motor leading and connecting cable under the frequency conversion condition is its key issue, and therefore, the variable-frequency motor of Development and Production high-quality is with anti-corona jump lead, improving variable-frequency motor jump lead useful life, is the emphasis of line cable industry scientific and technical personnel research.
The utility model content
The purpose of this utility model is to overcome the deficiency that common cable exists, a kind of frequency of utilization height is provided, decay is little, standing wave is little, advantages of good shielding performance, the reliability height, the good variable-frequency motor of in light weight, high temperature resistant, humidity, decay resistance is with anti-corona jump lead.
The purpose of this utility model is to realize like this, variable-frequency motor comprises conductor, insulating barrier and oversheath with anti-corona jump lead, it is characterized in that being provided with between copper wire twisted bundles conductor and the insulating barrier the anti-corona layer of fluororesin (FEP) corona-resistant polyimide film, the cable core of three-phase core stranding is provided with aluminium strip lapping layer and copper wire woven shield, and the silicon rubber oversheath is extruded on the copper wire woven shield.The anti-corona layer of described fluororesin (FEP) corona-resistant polyimide film is wrapped outer surface at copper wire twisted bundles conductor.Described fluororesin corona-resistant polyimide film is to scribble the fluororesin of anti-corona the (FEP) on polyimide film.Said insulating barrier is fluoroplastics.
The utility model is rational in infrastructure simple, and the manufacturing is easy, cost is low.Cable has that insulation is thin, anti-corona performance is good, puncture voltage is high, heat-resistance index is big, stability and advantage such as reliability is excellent, thermal conductivity good, strong, the moistureproof anti-chemical performance of the tack that insulate is good, can satisfy the performance requirement of the anti-corona of variable-frequency motor jump lead fully, can be used for carry high frequency, ultra-high frequency signal in communication, navigation, electronic countermeasures, wireless device, radio and television and the similar electronic installation, also can be used for high temperature resistant, anti-interference field of having relatively high expectations, have excellent popularization using value and vast market prospect.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
1 conductor among the figure, 2 anti-corona layers, 3 insulating barriers, 4 lapping layers, 5 screens, 6 oversheaths.
Embodiment
At the anti-corona layer 2 of the wrapped fluororesin of outer surface (FEP) corona-resistant polyimide film of copper wire twisted bundles conductor 1, wrapped with fluororesin (FEP) corona-resistant polyimide film of high-quality, improve the anti-corona performance of cable, reach the purpose of long service life.Extrude fluoroplastic insulation layer 3 on corona layer 2, coiling aluminium strip lapping layer 4 is provided with copper wire woven shield 5 on the cable core of three-phase core stranding outside aluminium strip lapping layer 4, and silicon rubber oversheath 6 is arranged on the copper wire woven shield 5.
Claims (4)
1, a kind of variable-frequency motor is with anti-corona jump lead, comprise conductor, insulating barrier and oversheath, it is characterized in that being provided with between copper wire twisted bundles conductor and the insulating barrier the anti-corona layer of fluororesin corona-resistant polyimide film, the cable core of three-phase core stranding is provided with aluminium strip lapping layer and copper wire woven shield, and the silicon rubber oversheath is extruded on the copper wire woven shield.
2, variable-frequency motor according to claim 1 is characterized in that with anti-corona jump lead the anti-corona layer of described fluororesin corona-resistant polyimide film is wrapped outer surface at copper wire twisted bundles conductor.
3, according to claim 1,2 described variable-frequency motors with anti-corona jump lead, it is characterized in that described fluororesin corona-resistant polyimide film, be on polyimide film, to scribble the fluororesin of anti-the corona.
4, variable-frequency motor according to claim 1 is characterized in that with anti-corona jump lead said insulating barrier is fluoroplastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079362 CN2745186Y (en) | 2004-09-07 | 2004-09-07 | Anti-corona connecting cable for frequency conversion motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420079362 CN2745186Y (en) | 2004-09-07 | 2004-09-07 | Anti-corona connecting cable for frequency conversion motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745186Y true CN2745186Y (en) | 2005-12-07 |
Family
ID=35579961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420079362 Expired - Fee Related CN2745186Y (en) | 2004-09-07 | 2004-09-07 | Anti-corona connecting cable for frequency conversion motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745186Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254602A (en) * | 2011-07-06 | 2011-11-23 | 黄华道 | Shielding line |
-
2004
- 2004-09-07 CN CN 200420079362 patent/CN2745186Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254602A (en) * | 2011-07-06 | 2011-11-23 | 黄华道 | Shielding line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |