CN202677884U - An air-cooled medium-high-frequency flexible cable - Google Patents
An air-cooled medium-high-frequency flexible cable Download PDFInfo
- Publication number
- CN202677884U CN202677884U CN 201220356267 CN201220356267U CN202677884U CN 202677884 U CN202677884 U CN 202677884U CN 201220356267 CN201220356267 CN 201220356267 CN 201220356267 U CN201220356267 U CN 201220356267U CN 202677884 U CN202677884 U CN 202677884U
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- flexible cable
- twisted
- conductor
- wires
- high frequency
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Abstract
The utility model relates to a flexible cable and especially relates to a medium-high-frequency flexible cable used as an output extending cable and a winding inductor which are applied to the output end of a medium-high-frequency electromagnetic induction heating power supply. The flexible cable comprises a conductor, a fiber-glass-filament-woven layer which is wrapped round the conductor and which fixes the conductor, a wrapping silicone rubber insulating layer, and a wrapping ethylene propylene diene monomer insulating layer. The conductor is twisted by plural stranded wires and each stranded wire is twisted by plural thin enamelled copper wires. The conductor is twisted by 48 stranded wires and each stranded wire is twisted by 15 enamelled copper wires. The diameter of the copper wire is 0.1 mm and the enamelled copper wires are 220 degree centigrade enamelled copper wires. The high-frequency current conductor is twisted by selected multiple thin enamelled copper wires. Because the enamelled copper wire is insulated from one another, skin effect and proximity effect of current with operating frequency are overcome by selecting the enamelled copper wires with proper diameter. The current carrying capacity of the flexible cable is equal to that of a power-frequency cable.
Description
Technical field
The utility model relates to a kind of flexible cable, relates in particular to a kind of output that is applied in the medium-high frequency electromagnetic induction heating power supply, does the medium-high frequency flexible cable of output prolongation and coiling inductor.
Background technology
Electromagnetic heater is a kind of device that utilizes electromagnetic induction principle to convert electrical energy into heat energy.Electromagnetic induction heating power supply output be the medium-high frequency high-voltage great-current of 2kHz ~ 500MHz, voltage reaches as high as 3KV, electric current also is that hundreds of amperes do not wait, require like this this output cable need high pressure resistant, satisfy large ampacity; Satisfy simultaneously high temperature resistant, wear-resisting, weatherability, require softness, adapt to the use occasion of various harshnesses.
The large electric current high temperature of the medium-high frequency flexible cable that uses at present, its structure is that many bare copper wires are stranded, and is outer by heatproof insulating material such as glass fiber, micas etc. are a strand, and are stranded with this line of multiply again, outer by the bag insulating temperature resistant meterial again, are made into the high temperature flexible cable.But owing to the problem of structure, can not overcome well skin effect and the proximity effect of high-frequency current.
So-called skin effect refers to that electric current will concentrate on conductive surface to be passed through when alternating current passes through conductor; When so-called proximity effect refers to that adjacent wires flows through high-frequency current, because the magnetoelectricity effect makes the characteristic of electric current secundly.So the large electric current high temperature of existing medium-high frequency flexible cable, the ampacity higher to frequency is little, and heating is serious, wastes energy.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of air cooling medium-high frequency flexible cable, and it can overcome skin effect and the proximity effect of high-frequency current.
Air cooling medium-high frequency flexible cable of the present utility model, it is characterized in that: comprise conductor, silicone rubber insulation layer and the ethylene propylene diene rubber insulating barrier of the glass fiber braid of this conductor that is fastened, outer quilt, described conductor is twisted into by a plural number strand twisted wire, and per share twisted wire is by stranded the forming of the thin enamel covered wire of complex root.
Described conductor is twisted into by 48 strands of these twisted wires, and per share twisted wire is twisted into by 150 these enamel covered wires.
The diameter of described copper cash is 0.1mm.
Described enamel covered wire is 220 ℃ of copper enamelled wires.
The thickness of described glass filament braid is 1MM.
The thickness of described silicone rubber insulation layer is 4MM.
The thickness of described ethylene propylene diene rubber insulating barrier is 3MM.
Select the many stranded high-frequency current conductors that form of thin enamel covered wire, because root thoroughly does away with edge between the enamel covered wire, select the wire diameter of suitable copper enamelled wire, can overcome skin effect and the proximity effect of operating frequency electric current, the ability of its ampacity can be equal to the ampacity of power frequency cable.
Description of drawings
Fig. 1 is the structural representation of air cooling medium-high frequency flexible cable of the present utility model.
Embodiment
Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail.
Referring to Fig. 1, air cooling medium-high frequency flexible cable of the present utility model is selected 220 ℃ of copper enamelled wires of 0.1mm diameter, is twisted into one with 150 these copper enamelled wires, is twisted into final conductor 10 with 48 strands of these twisted wires again; Use again 1MM glass fiber braid 20 fixed conductors 10, outer by 4MM silicone rubber insulation layer 30, outer by 3MM ethylene propylene diene rubber insulating barrier 40 again.
Characteristics according to high-frequency current, mainly be skin effect and proximity effect, select the many stranded high-frequency current conductors that form of thin enamel covered wire, because root thoroughly does away with edge between the enamel covered wire, select the wire diameter of suitable copper enamelled wire, can overcome skin effect and the proximity effect of operating frequency electric current, the ability of its ampacity can be equal to the ampacity of power frequency cable;
Select high temperature copper enamelled wire can improve ampacity; Select the stranded cable that makes of thinner copper enamelled wire more soft; After selected specification copper enamelled wire is stranded, with the refractory glass fibre silk braiding cable core that is fastened, make stranded thin copper enamelled wire firm, indeformable, do not disperse; Again with the silicone rubber insulation layer outsourcing, can be high temperature resistant, softness, dielectric strength is high, and is high pressure resistant; Outermost layer can be high temperature resistant again by the ethylene propylene diene rubber insulating barrier, softness, and dielectric strength is high, and is high pressure resistant, wear-resisting;
The range of application of above-mentioned air cooling high frequency flexible cable is 200MHZ, ampacity 200Arms, withstand voltage 3000Vrms: the employing of such scheme, can make the power stage of the electromagnetic induction heating power supply of high-power medium-high frequency had a kind of applicable, convenient, safety, lightly, power delivery cable and twine inductor easily; Its feature is to use medium-high frequency electric current, large, high temperature resistant, soft, wear-resisting, weather-proof, light, high pressure resistant, the safety of ampacity; Little, the thick heaviness of shortcoming ampacity of old money cable, not wear-resisting, poor stability have been overcome.
This air cooling high-frequency high temperature flexible cable is widely used in the power stage of electromagnetic induction heating power supply, is applied in large-scale workpiece welding preheating, welding insulation, the post weld heat treatment of factory; The various thermal management application of field construction etc.
The above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet be not to limit the utility model, any those skilled in the art, in the scope that does not break away from technical solutions of the utility model, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification that foundation technical spirit of the present utility model is done above embodiment, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. air cooling medium-high frequency flexible cable, it is characterized in that: comprise conductor, silicone rubber insulation layer and the ethylene propylene diene rubber insulating barrier of the glass fiber braid of this conductor that is fastened, outer quilt, described conductor is twisted into by a plural number strand twisted wire, and per share twisted wire is by stranded the forming of the thin enamel covered wire of complex root.
2. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: described conductor is twisted into by 48 strands of these twisted wires, and per share twisted wire is twisted into by 150 these enamel covered wires.
3. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: the diameter of described copper cash is 0.1mm.
4. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: described enamel covered wire is 220 ℃ of copper enamelled wires.
5. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: the thickness of described glass filament braid is 1MM.
6. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: the thickness of described silicone rubber insulation layer is 4MM.
7. air cooling medium-high frequency flexible cable as claimed in claim 1, it is characterized in that: the thickness of described ethylene propylene diene rubber insulating barrier is 3MM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356267 CN202677884U (en) | 2012-07-23 | 2012-07-23 | An air-cooled medium-high-frequency flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356267 CN202677884U (en) | 2012-07-23 | 2012-07-23 | An air-cooled medium-high-frequency flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677884U true CN202677884U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220356267 Expired - Fee Related CN202677884U (en) | 2012-07-23 | 2012-07-23 | An air-cooled medium-high-frequency flexible cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655057A (en) * | 2015-12-30 | 2016-06-08 | 合肥星辰电线电缆股份有限公司 | Preparation process of warp-resistant flexible cable |
-
2012
- 2012-07-23 CN CN 201220356267 patent/CN202677884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655057A (en) * | 2015-12-30 | 2016-06-08 | 合肥星辰电线电缆股份有限公司 | Preparation process of warp-resistant flexible cable |
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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: 20130116 Termination date: 20170723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |