CN201281974Y - High temperature resistant variable frequency power cable - Google Patents
High temperature resistant variable frequency power cable Download PDFInfo
- Publication number
- CN201281974Y CN201281974Y CNU2008201380205U CN200820138020U CN201281974Y CN 201281974 Y CN201281974 Y CN 201281974Y CN U2008201380205 U CNU2008201380205 U CN U2008201380205U CN 200820138020 U CN200820138020 U CN 200820138020U CN 201281974 Y CN201281974 Y CN 201281974Y
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- power cable
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- twisted
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Abstract
The utility model relates to a cable, in particular to a heat-resistant variable-frequency power cable. The power cable comprises three thicker insulated wires and three thinner insulated wires, wherein, the insulated wires are insulated with fluoroplastic after oxygen-free copper wire beams are twisted into a conductor; the fluoroplastic insulating layer is covered with a protective layer; six insulated wires with different thicknesses which are arrayed at intervals are twisted into a circular wire core; an covered layer, a brass wire woven layer and a copper strip covered layer are covered on the outer side of the wire core in sequence; and a silastic outer sheath is extruded on the brass strip covering layer. The utility model has the advantages of stronger voltage withstand and impact resistance, good shielding property and high temperature resistance, and can effectively eliminate the electromagnetic interference, reduce the variable-frequency motor noise, and ensure the system steady operation.
Description
Technical field
The utility model relates to a kind of cable, especially a kind of high temperature resistant frequency conversion power cable.
Background technology
Along with the raising of awareness of saving energy, the electric equipment products that many industry or family use have all designed the frequency conversion automatic control system in order to realize economize on electricity.But register one's residence because electrical equipment only adopts common cable to connect when using, present variable frequency power supply is by thyristor frequency modulation, has changed waveform characteristic on largely, thereby cable has been brought new problem.The frequency-tuning range broad of variable frequency power supply, no matter frequency height, waveform profiles with a basic frequency, it has comprised many high order harmonic components, and through repeatedly reflection, the amplitude stack can reach the operating voltage several times as a kind of capable ripple, cable is long more, amplitude is high more, and cable is often breakdown, and therefore also be affected the useful life of frequency conversion electrical equipment.
Summary of the invention
In order to overcome the deficiency that existing common cable exists, the utility model provides a kind of have stronger proof voltage impact, good shielding and the frequency conversion power cable of resistance to elevated temperatures, can effectively eliminate electromagnetic interference, reduce the variable-frequency motor noise, guarantee system stable operation.
Technical solutions of the utility model are: a kind of high temperature resistant frequency conversion power cable, comprise three thicker insulated wires and three thinner insulated wires, and insulated wire is used fluoroplastic insulation after being twisted into conductor by the oxygen-free copper tow, fluoroplastic insulation layer outsourcing matcoveredn; The insulated wire of six roots of sensation different thicknesses is spaced, and is twisted into circular cable core, and the cable core outside is surrounded by lapping layer, copper wire woven shield and copper strips lapping layer successively, and the silicon rubber oversheath is extruded on the copper strips lapping layer.
The utility model forms 3+3 core structure by adopting above-mentioned particular design, makes cable have stronger proof voltage impact, and the pulse voltage in the time of standing frequently to resemble frequency conversion at a high speed plays a good protection to frequency converter.Simultaneously, the utility model also adopts the dual shield structure of copper wire woven shield and copper strips lapping layer, have outstanding shielding properties, can reduce the harmful effect of the high order harmonic component that exists in the frequency converter output, can not consider the influence that its inductance coupling effect is produced the adjacent cable that lays.
The beneficial effects of the utility model are: this product is applicable to that ac rated voltage 0.6/1KV and following frequency-changing control system make service cable or be electrically connected, have stronger proof voltage impact, shielding and resistance to elevated temperatures, pulse voltage in the time of standing frequency conversion, cable has good shielding, and effectively eliminate electromagnetic interference, reduce the variable-frequency motor noise, guarantee system stable operation, can be widely used in industries such as metallurgy, electric power, petrochemical industry.
Description of drawings:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
Referring to Fig. 1, a kind of high temperature resistant frequency conversion power cable comprises three thicker insulated wires and three thinner insulated wires, and insulated wire is used fluoroplastic insulation after being twisted into conductor by oxygen-free copper tow 1, fluoroplastic insulation layer 2 outsourcing matcoveredn 3.The insulated wire of six roots of sensation different thicknesses is spaced, and is twisted into circular cable core, and the cable core outside is surrounded by lapping layer 4, copper wire woven shield 5 and copper strips lapping layer 6 successively, and silicon rubber oversheath 7 is extruded on the copper strips lapping layer 6.Wherein, fluoroplastic insulation layer 2 is plasticator continuously extruding and moldings, and lapping layer 4 is mica tape or glass fiber tape.
Claims (1)
1. a kind of high temperature resistant frequency conversion power cable described in the utility model comprises three thicker insulated wires and three thinner insulated wires, it is characterized in that using fluoroplastic insulation after described insulated wire is twisted into conductor by the oxygen-free copper tow, fluoroplastic insulation layer outsourcing matcoveredn; The insulated wire of six roots of sensation different thicknesses is spaced and is twisted into circular cable core, and the cable core outside is surrounded by lapping layer, copper wire woven shield and copper strips lapping layer successively, and the silicon rubber oversheath is extruded on the copper strips lapping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201380205U CN201281974Y (en) | 2008-09-17 | 2008-09-17 | High temperature resistant variable frequency power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201380205U CN201281974Y (en) | 2008-09-17 | 2008-09-17 | High temperature resistant variable frequency power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281974Y true CN201281974Y (en) | 2009-07-29 |
Family
ID=40928841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201380205U Expired - Fee Related CN201281974Y (en) | 2008-09-17 | 2008-09-17 | High temperature resistant variable frequency power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281974Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854760A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Fire-resistant high temperature-resistant cable |
-
2008
- 2008-09-17 CN CNU2008201380205U patent/CN201281974Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854760A (en) * | 2012-11-30 | 2014-06-11 | 林凤俊 | Fire-resistant high temperature-resistant 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: 20090729 Termination date: 20130917 |