CN202918525U

CN202918525U - Silica gel spiral carbon fiber electrothermal line

Info

Publication number: CN202918525U
Application number: CN 201220635539
Authority: CN
Inventors: 牛君哲
Original assignee: YINCHUAN BAILIKANG ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: YINCHUAN BAILIKANG ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-11-27
Filing date: 2012-11-27
Publication date: 2013-05-01
Anticipated expiration: 2022-11-27

Abstract

The utility model relates to a silica gel spiral carbon fiber electrothermal line, comprising a carbon fiber (3) and characterized in that the carbon fiber (3) is winded by a metal heating wire (2) which is wrapped by a silica gel insulating layer (1). The silica gel spiral carbon fiber electrothermal line possesses the advantages of high heating efficiency, high temperature resistance, bending resistance, low costs and a small wire diameter, is suitable for use in low-voltage and high-voltage circuits, has the characteristics of safe use, reliable operation, a wide adaptable voltage scope and a high cost performance and can replace a common silica gel spiral electrothermal line and a common silica gel carbon fiber electrothermal line.

Description

A kind of silica gel coiled carbon fibers heating wire

Technical field

The utility model relates to a kind of silica gel coiled carbon fibers heating wire.

Background technology

In the products such as electric blanket, electric pad, medicine equipment, be widely used various heating wires (or claiming line with heating function), common electrical hot line insulating barrier generally adopts the PVC(polyvinyl chloride) or silica gel, heating wire generally adopts constantan wire, zinc white copper wire, nichrome wire or carbon fiber wire; Silica gel has good electric insulation, high heat conduction, high-temperature stability, and carbon fiber wire has heating efficiency height and good anti-bending characteristic; Common silica gel spiral heating wire is comprised of silicone insulation layer and the metal electric heated filament that is spirally wound on the glass fiber, and its resistance value scope is generally 0.1 Ω/m-10000 Ω/m; Common silica gel carbon fiber electrothermal line is by silicone insulation layer and 3K-24K(3000 root-24000 piece) carbon fiber wire forms, and its resistance value scope is generally 17 Ω/m-133 Ω/m.

Common silica gel spiral heating wire has good high-temperature stability and larger resistance value scope, in low pressure and high-tension circuit, all can use, but silica gel spiral heating wire is after often bending is used, the metal electric heated filament easily produces filament failure because of metal fatigue, and fracture of wire point can produce electric spark, and the easy initiation fire of electric spark, so its safety and reliability is relatively poor; Common silica gel carbon fiber electrothermal line has heating efficiency height and good high temperature resistant, anti-bending characteristic, but its resistance value scope is less, resistance value is higher, use in the general high-tension circuit that only is adapted at 110V-240V, be not suitable in the low-voltage circuit of≤60V, using, and the silica gel carbon fiber electrothermal line cost of 〉=24K is higher, wire diameter is larger, so its scope of application is narrower.

The utility model content

The purpose of this utility model provide a kind of have high, high temperature resistant, the anti-bending of heating efficiency, low cost, little wire diameter and be adapted at low pressure and high-tension circuit in the silica gel coiled carbon fibers heating wire that uses.

A kind of silica gel coiled carbon fibers heating wire comprises carbon fiber wire, and its special feature is: be wound with the metal electric heated filament outside described carbon fiber wire, and be wrapped with the silicone insulation layer at this metal electric heated filament.

Wherein the metal electric heated filament is that one whole and its are wrapped in outside the carbon fiber wire in a spiral manner.

The utility model provide a kind of have high, high temperature resistant, the anti-bending of heating efficiency, low cost, little wire diameter and be adapted at low pressure and high-tension circuit in the silica gel coiled carbon fibers heating wire that uses.Have and use safety, reliable operation, the applicable characteristics that voltage range is wide, cost performance is high, can substitute common silica gel spiral heating wire and common silica gel carbon fiber electrothermal line.

Description of drawings

Accompanying drawing 1 is structural representation of the present utility model.

Embodiment

As shown in Figure 1, the utility model is a kind of silica gel coiled carbon fibers heating wire, comprises carbon fiber wire 3, is wound with metal electric heated filament 2 outside carbon fiber wire 3, and is wrapped with silicone insulation layer 1 at this metal electric heated filament 2.Wherein metal electric heated filament 2 is that one whole and its are wrapped in outside the carbon fiber wire 3 in a spiral manner.

Operation principle of the present utility model is:

Heating core in the silica gel coiled carbon fibers heating wire of the present utility model is by metal electric heated filament 2 and 3 compound compositions of carbon fiber wire, they are in state in parallel during use in circuit, when heating wire works, they conduct electricity simultaneously and generate heat, by selecting different materials, diameter, the carbon fiber wire 3 of the heating wire of length and varying number (being generally 3K-12K), they can be combined into resistance value wider range and (be generally the heating core of 1 Ω/m-100 Ω/m), not only be adapted at using in the high-tension circuit of 110V-240V, be adapted at equally≤use in the low-voltage circuit of 60V; If heating wire during normal use metal electric heated filament 2 produces the fracture of wire point, this moment, the fracture of wire dot spacing was about 0.1mm-0.5mm, the resistance value of fracture of wire point increases approximately 0.01 Ω-0.1 Ω, the carbon fiber wire 3 of fracture of wire point still continues conduction, the resistance value that increases is on almost not impact of heating wire, heating wire still can work, and fracture of wire point is difficult for producing electric spark, it is low that it has overcome common silica gel spiral heating wire heating efficiency, and easily fracture of wire, fracture of wire point easily produce electric spark and common silica gel carbon fiber heating line because of the high defective that can not use of resistance value in low-voltage circuit.

Claims

1. a silica gel coiled carbon fibers heating wire comprises carbon fiber wire (3), it is characterized in that: be wound with metal electric heated filament (2) outside described carbon fiber wire (3), and be wrapped with silicone insulation layer (1) at this metal electric heated filament (2).

2. a kind of silica gel coiled carbon fibers heating wire as claimed in claim 1 is characterized in that: wherein metal electric heated filament (2) is that one whole and its are wrapped in outside the carbon fiber wire (3) in a spiral manner.