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Heating cable

A technology of heating cables and heating conductors, applied in the direction of electrical components, heating element shapes, magnetic field/electric field shielding, etc., can solve the problems of low leakage protection, low heat utilization rate, unfavorable large-area laying, etc., and achieve a safety factor Improvement, reduction of time, and the effect of temperature stabilization

Active Publication Date: 2012-05-23
GUANGXI QUNXING CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Safety guarantee: the degree of leakage protection is not high;
[0004] 2. Installation control and use: temperature control is complicated and installation is inconvenient;
[0006] 4. Installation space: it takes up a lot of limited space, which is not conducive to large-scale laying;
[0007] 5. Energy consumption: slow heating, low heat utilization rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 , figure 2 As shown, it is a heating cable with double ground wires and shielding.

[0049] A single row of ultra-thin chrome-aluminum or chromium-nickel alloy steel strip conductor 1, inner insulation layer 2, insulating layer connected ground wire 3, shielding 4, ground wire 5 between the shielding layer and the outer sheath, and outer sheath 6.

[0050] Use width mm×thickness mm=25×0.02 alloy steel strips containing 21% chromium, 6% aluminum or 20% chromium and 35% nickel as the conductor 1, and use flame-retardant polyvinyl chloride with a thickness of 0.3-0.5mm Plastic or cross-linked polyethylene plastic or fluorine plastic or silicone rubber plastic as the inner insulating layer 2, and a 7 / 0.2mm diameter copper stranded wire is installed in one piece next to the insulating layer as the ground wire 3, and the thickness is 0.02 ~ 0.05mm lamination film Aluminum foil material or 0.01-0.05mm laminated copper foil is used as the shielding layer 4, ...

Embodiment 2

[0062] Such as image 3 , Figure 4 As shown, a heating cable with one ground wire and two heating conductors.

[0063] Double-row ultra-thin chrome-aluminum or chromium-nickel alloy steel strip conductor 1, insulation layer 2, ground wire 3, laminated copper foil shield 4, and outer sheath 5.

[0064] Two strips of width mm×thickness mm=4×0.05 are used side by side, and alloy steel strips containing 21% chromium, 6% aluminum or 20% chromium and 35% nickel are used as conductors 1, and resistance wires with a thickness of 0.3-0.5mm are used. Fired polyvinyl chloride plastic or cross-linked polyethylene plastic or fluorine plastic or silicone rubber plastic as the inner insulating layer 2, install a copper strand with a diameter of 7 / 0.2mm as the ground wire 3 next to the insulating layer, and adopt a thickness of 0.02 to 0.05mm Laminated aluminum foil material or 0.01-0.05mm laminated copper foil is used as the shielding layer 4, and flame-retardant polyvinyl chloride plasti...

Embodiment 3

[0067] Such as Figure 5 , Figure 6 As shown, a heating cable with ground wire and shielding.

[0068] A single row of ultra-thin chromium-aluminum or chromium-nickel alloy steel strips is used for conductor 1, inner insulating layer 2, shielding 3, outer sheathing 4, and ground wire 5 between the shielding layer and the outer sheathing.

[0069] Use width mm×thickness mm=10×0.05 alloy steel strips containing 21% chromium, 6% aluminum or 20% chromium and 35% nickel as the conductor 1, and use flame-retardant polyvinyl chloride with a thickness of 0.3-0.5mm Plastic or cross-linked polyethylene plastic or fluoroplastic or silicon rubber plastic is used as the inner insulating layer 2, and the thickness of 0.02-0.05mm is used as the laminated aluminum foil material or 0.01-0.05mm laminated copper foil is used as the shielding layer 3, and the thickness is 0.3-0.3mm 0.5mm flame-retardant polyvinyl chloride plastic or fluorine plastic or silicon rubber plastic is used as the out...

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Abstract

The invention discloses a heating cable. The heating cable is shaped as a thin long band, and an ultrathin chromium-aluminum or chromium-nickel alloy steel band is used as a heating conductor, wherein an insulating layer is coated outside the heating conductor, a shielding layer is coated outside the insulating layer, and an outer protection layer is coated outside the shielding layer. The heating cable comprises 7 products with different structures. The heating cable has the advantages of durability, safety, energy saving, difficult burnout after long-time high-temperature heating, stable heating temperature, simple and convenient mounting, small occupied space and optional selection of length. The invention is suitable for roads, pipelines and pots in cold areas for raising temperature and deicing as well as planting and breeding green houses, automobile engines, houses and places needing keeping warm and raising temperature.

Description

technical field [0001] The invention relates to a cable, in particular to a heating cable used in roads, pipelines, tanks in cold regions to heat up and melt ice, planting and breeding greenhouses, automobile engines, houses, etc., which need to keep warm and increase temperature. Background technique [0002] With the improvement of people's life, higher requirements are put forward for the performance and use of heating cables, especially in terms of energy saving, safety and environmental protection. In the past heating cables, niobium aluminum alloy was used as conductor and polyvinyl chloride as insulation After a period of use, the heating cable with niobium-aluminum alloy as the conductor heats up slowly, takes a long time, increases power consumption, and has low safety protection and aging resistance. Experiments have now invented a heating cable using chromium, aluminum alloy or chromium, nickel alloy as a conductor, which has fast heating and stable heat, and has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00H05B3/56
Inventor 林海明刘毓棠
Owner GUANGXI QUNXING CABLE CO LTD
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