CN201622866U - Variable frequency cable - Google Patents
Variable frequency cable Download PDFInfo
- Publication number
- CN201622866U CN201622866U CN2010201261877U CN201020126187U CN201622866U CN 201622866 U CN201622866 U CN 201622866U CN 2010201261877 U CN2010201261877 U CN 2010201261877U CN 201020126187 U CN201020126187 U CN 201020126187U CN 201622866 U CN201622866 U CN 201622866U
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- cable
- shielding layer
- copper wire
- frequency
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Abstract
The utility model discloses a variable frequency cable, belonging to the technical field of cables, and comprising a cable, a lapping shielding layer, a copper wire braided shielding layer and silicon rubber sheath, wherein the cable consists of three large cable cores and three small cable cores; each cable core comprises a conductor and an insulating layer extruded at the outer surface of the conductor; after being formed, each cable core is externally provided with the lapping shielding layer and the copper wire braided shielding layer in sequence; and the outermost layer of silicon rubber sheath is extruded on the copper wire braided shielding layer. The variable frequency cable has reasonable and simple structure, easy production and manufacture and low cost, also has the characteristics of thin insulating layer and good insulating performance, high breakdown voltage, strong anti-interference capability and the like, can completely meet the performance requirements of pulse and voltage resistance of the cable, and is widely used for the industries of metallurgy, power, petrifaction, media and the like.
Description
Technical field
The utility model relates to a kind of cable, specifically is a kind of frequency-changing cable, belongs to the cable technology field.
Background technology
In recent years, frequency control motor has very big development at home and abroad, and annual growth slightly surpasses 10%.Variable-frequency motor has more advantage, and few as the equipment investment expense, simple in structure, volume is little, and cost is low, and is energy-conservation, and speed adjustable range is big, has the characteristic of permanent power, permanent rotating speed, and is easy to use, and capacity is big or the like.Therefore currently use widely, equally also widely apply at household electrical appliance recently in industrial aspect such as metallurgy, mine, railways.Variable-frequency control technique is related to variable-frequency motor, variable frequency power supply and stube cable, and this section cable often abbreviates frequency-changing cable as because actual operating frequency is 30～300Hz.Present variable frequency power supply is by thyristor frequency modulation, has changed waveform characteristic on largely, thereby motor and cable have been brought new problem.The frequency-tuning range broad of variable frequency power supply, though the frequency height, the 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, and amplitude is high more, if the cable insulation coefficient of safety is not high, may be breakdown, the harmfulness of pulse surge is described, prevention is necessary, common cable does not possess the ability of anti-pulse voltage, therefore, the exploitation frequency-changing cable is imminent, and is imperative.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiency that common cable exists, and a kind of have good insulation preformance, puncture voltage height, heat-resistance index is big, interference resistance is strong frequency-changing cable are provided.
Frequency-changing cable described in the utility model, it comprises cable, lapped shielding layer, copper wire woven shield and silicone rubber jacket, described cable is made up of three big three little cores, its core comprises the insulating barrier that conductor and conductor outer surface extrude, be provided with lapped shielding layer and copper wire woven shield behind the core stranding outside cable core successively, outermost silicone rubber jacket is extruded on the copper wire braid shielded.
Described insulating barrier is that crosslinked polyethylene is extruded in the formation of conductor outer surface.
Described lapped shielding layer is divided into the first polyester belt lapping layer, the wrapped shielding of copper strips from inside to outside, second polyester belt is wrapped and the copper strips lapped shielding layer.
The utility model is rational in infrastructure simple, and the manufacturing is easy, cost is low.This product has characteristics such as insulation thin insulating performance is good, puncture voltage is high, antijamming capability is strong, can satisfy the performance requirement of the anti-pulse voltage of cable fully, can be used for industries such as electric power, metallurgy, petrochemical industry, medium.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure 1, conductor, 2, crosslinked polyetylene insulated layer, 3, the first polyester belt lapping layer, 4, the wrapped shielding of copper strips, 5, second polyester belt is wrapped, 6, the copper wire woven shield, 7, the silicon rubber oversheath.
Embodiment
As shown in Figure 1, frequency-changing cable mainly comprises cable, lapped shielding layer, copper wire woven shield and silicone rubber jacket 7, wherein:
Cable is made up of three big three little six roots of sensation cores, core wherein comprises that conductor 1 and conductor outer surface extrude the insulating barrier 2 that crosslinked polyethylene forms, be provided with lapped shielding layer and copper wire woven shield 6 behind the core stranding outside cable core successively, outermost silicone rubber jacket 7 is extruded on the copper wire braid shielded.
Lapped shielding layer is divided into the first polyester belt lapping layer 3, the wrapped shielding 4 of copper strips, second polyester belt wrapped 5 and copper strips lapped shielding layer 6 from inside to outside.
Claims (3)
1. frequency-changing cable, it is characterized in that comprising cable, lapped shielding layer, copper wire woven shield and silicone rubber jacket (7), described cable is made up of three big three little cores, its core comprises the insulating barrier (2) that conductor (1) and conductor outer surface extrude, be provided with lapped shielding layer and copper wire woven shield (6) behind the core stranding outside cable core successively, outermost silicone rubber jacket (7) is extruded on the copper wire braid shielded.
2. frequency-changing cable according to claim 1 is characterized in that described insulating barrier (2) forms for crosslinked polyethylene is extruded in the conductor outer surface.
3. frequency-changing cable according to claim 1 is characterized in that described lapped shielding layer is divided into the first polyester belt lapping layer (3), the wrapped shielding of copper strips (4), second polyester belt wrapped (5) and copper strips lapped shielding layer (6) from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201261877U CN201622866U (en) | 2010-03-08 | 2010-03-08 | Variable frequency cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201261877U CN201622866U (en) | 2010-03-08 | 2010-03-08 | Variable frequency cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622866U true CN201622866U (en) | 2010-11-03 |
Family
ID=43026322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201261877U Expired - Fee Related CN201622866U (en) | 2010-03-08 | 2010-03-08 | Variable frequency cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622866U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
| CN104103370A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Crosslinked polyethylene insulated copper wire copper strip shielding frequency converter cable |
| CN104282388A (en) * | 2014-08-28 | 2015-01-14 | 四川顶锐液压设备制造有限公司 | Power supply cable of hydraulic pump station |
| CN108022685A (en) * | 2017-12-02 | 2018-05-11 | 安徽天康(集团)股份有限公司 | A kind of rated voltage 1kV heatproof Special power cable for frequency converter |
-
2010
- 2010-03-08 CN CN2010201261877U patent/CN201622866U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811109A (en) * | 2012-11-14 | 2014-05-21 | 湖北龙腾红旗电缆(集团)有限公司 | Low-smoke halogen-free ultraviolet-proof variable frequency cable |
| CN103811109B (en) * | 2012-11-14 | 2016-06-29 | 湖北龙腾红旗电缆(集团)有限公司 | Low smoke and zero halogen anti-ultraviolet frequency-changing cable |
| CN104103370A (en) * | 2013-04-10 | 2014-10-15 | 江苏远红电缆有限公司 | Crosslinked polyethylene insulated copper wire copper strip shielding frequency converter cable |
| CN104282388A (en) * | 2014-08-28 | 2015-01-14 | 四川顶锐液压设备制造有限公司 | Power supply cable of hydraulic pump station |
| CN108022685A (en) * | 2017-12-02 | 2018-05-11 | 安徽天康(集团)股份有限公司 | A kind of rated voltage 1kV heatproof Special power cable for frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |