CN202172501U

CN202172501U - Carbon fiber electric heating cable

Info

Publication number: CN202172501U
Application number: CN2011202649969U
Authority: CN
Inventors: 南君洲
Original assignee: ZHEJIANG TEFLON CABLE CO Ltd
Current assignee: ZHEJIANG TEFLON CABLE CO Ltd
Priority date: 2011-07-25
Filing date: 2011-07-25
Publication date: 2012-03-21
Anticipated expiration: 2021-07-25

Abstract

The utility model discloses a carbon fiber electric heating cable, which comprises two power supply lines, heat-resisting inner insulating layers covered outside the power supply lines, a carbon fiber electric heating layer and a heat-resisting insulating layer covered outside the carbon fiber electric heating layer. The carbon fiber electric layer is formed by carbon fiber electric heating wires wound on inner insulating layers. The head end and the tail end of each carbon fiber electric heating wire are fixedly welded on the two power supply lines in tin solder mode, and wire bodies of middle portions at the head end and the tail end are wound on the inner insulating layers at equal intervals. Traditional annular carbon fiber electric heating layers are replaced by the carbon fiber electric heating wires wound around the inner insulating layers, the structure is simplified, manufacture difficulty and cost are effectively reduced, and the carbon fiber electric heating cable has the advantages of being even in heating. In addition, due to the fact that the carbon fiber electric heating wires are fixedly welded on the power supply lines in tin solder mode, combining strength and stability and reliability of working are guaranteed.

Description

A kind of carbon fiber electric heating cable

Technical field

The utility model belongs to electric heating cable design field, is specifically related to a kind of carbon fiber electric heating cable.

Background technology

As everyone knows, the heater wire under the prior art mostly uses nickel-cadmium, molybdenum filament, tungsten filament or ptc material to do electric heating element.Because these thermo electric materials self inherent characteristic in use exists many deficiencies,, in the electric heating process, have visible light to exist, so the heat efficiency is lower like the electric heating element that materials such as general nichrome material, molybdenum filament, tungsten filament are processed; Electrical heating power was prone to decay and puncture during ptc material used, and useful life is short, and the heat efficiency is lower.Though above-mentioned thermo electric material has the application of broad, but be difficult to process the anti-permanent and high electric heating element of the heat efficiency.

Patent documentation CN2689637Y discloses a kind of two-conductor line carbon fiber electric heating cable; Comprise the power lead, electric conduction of carbon fiber layer, carbon fiber external insulation layer and the metal knitted stratum reticulare that are covered with insulating barrier, its design feature is: two parallel power lead outsides that are covered with insulating barrier are coated with electric conduction of carbon fiber layer, carbon fiber external insulation layer and metal knitted stratum reticulare from inside to outside successively; Two power leads are provided with the joint that connects power lead and electric conduction of carbon fiber layer at the difference end respectively.There is following weak point in this kind carbon fiber electric heating cable: the basic configuration of electric conduction of carbon fiber layer is a ring-type, and its processing and manufacturing is extrusion molding basically, and its shortcoming is to be difficult to uniformity at the thickness that makes progress in week, and its machine-shaping manufacturing process is also comparatively complicated in addition.

Summary of the invention

The purpose of the utility model provides a kind of designs simplification, heating carbon fiber electric heating cable comparatively uniformly.

The technical scheme that realizes the utility model purpose is: a kind of carbon fiber electric heating cable comprises two power lines, is wrapped in power line outer heat-resisting inner insulating layer, carbon fiber electrothermal layer and is wrapped in the outer heat-resisting external insulation layer of carbon fiber electrothermal layer; Said carbon fiber electrothermal layer is to be formed by the carbon fibre electrothermal wire of many windings on inner insulating layer; The head and the tail two ends of said each bar carbon fibre electrothermal wire are weldingly fixed on two power lines through the soldering mode respectively, and the equally spaced winding of mid portion filament that is positioned at the head and the tail two ends is on inner insulating layer.

Said external insulation layer also is arranged with the fluoroplastics protective layer outward.

The utlity model has positive effect: (1) the utility model has replaced the carbon fiber electrothermal layer of traditional ring-type with the carbon fibre electrothermal wire of winding on inner insulating layer; Its structure is comparatively simplified; Effectively reduce manufacture difficulty and manufacturing cost, and have the comparatively advantage of uniform of generating heat.In addition, owing to adopt the soldering mode that carbon fibre electrothermal wire is weldingly fixed on the power line, thus guarantee both bond strengths and the reliability of work.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Be labeled as shown in the accompanying drawing: power line 1, heat-resisting inner insulating layer 2, carbon fiber electrothermal layer 3, heat-resisting external insulation layer 4, carbon fibre electrothermal wire 5, fluoroplastics protective layer 6, solder joint 7.

Embodiment

(embodiment 1)

Fig. 1 is a kind of structural representation of the utility model, has shown a kind of embodiment of the utility model.

Present embodiment is a kind of carbon fiber electric heating cable, sees Fig. 1, comprises two power lines 1, is wrapped in power line 1 outer heat-resisting inner insulating layer 2, carbon fiber electrothermal layer 3, is wrapped in the outer heat-resisting external insulation layer 4 of carbon fiber electrothermal layer and is wrapped in; Fluoroplastics protective layer 6 outside the external insulation layer 4.Said heat-resisting inner insulating layer 2 selects for use the plastics of heatproof more than 180 ℃ to process, and external insulation layer 4 adopts the FEP material of heatproof more than 200 ℃ to process.

Said carbon fiber electrothermal layer 3 is to be formed by 5 of the carbon fibre electrothermal wire of many windings on inner insulating layer 2; The head and the tail two ends of said each bar carbon fibre electrothermal wire 5 are weldingly fixed on two power lines 1 through the soldering mode respectively, and form solder joint 7 at weld, and the equally spaced winding of mid portion filament that is positioned at the head and the tail two ends is on inner insulating layer 2.

Said each carbon fibre electrothermal wire 5 successively winding on inner insulating layer 2.

In the present embodiment, because inner insulating layer 2 is an ellipticity, so each carbon fibre electrothermal wire 5 equally spaced coiled is oval, in concrete practice, inner insulating layer 2 can be made into circle, so each carbon fibre electrothermal wire 5 can equally spaced coiled screw thread wire.

Present embodiment can reach 150 ℃ after energising.

Present embodiment has replaced the carbon fiber electrothermal layer of traditional ring-type with the carbon fibre electrothermal wire of winding on inner insulating layer, and its structure is comparatively simplified, and effectively reduces manufacture difficulty and manufacturing cost, and has the comparatively advantage of uniform of generating heat.In addition, owing to adopt the soldering mode that carbon fibre electrothermal wire is weldingly fixed on the power line, thus guarantee both bond strengths and the reliability of work.

Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the execution mode of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation that these connotations that belong to the utility model are extended out or change still belong to the protection range of the utility model.

Claims

1. a carbon fiber electric heating cable comprises two power lines (1), is wrapped in power line (1) outer heat-resisting inner insulating layer (2), carbon fiber electrothermal layer (3) and is wrapped in the outer heat-resisting external insulation layer (4) of carbon fiber electrothermal layer; It is characterized in that: said carbon fiber electrothermal layer (3) is to be formed by the carbon fibre electrothermal wire (5) of many windings on inner insulating layer (2); The head and the tail two ends of said each bar carbon fibre electrothermal wire (5) are weldingly fixed on two power lines (1) through the soldering mode respectively, and the equally spaced winding of mid portion filament that is positioned at the head and the tail two ends is on inner insulating layer (2).

2. carbon fiber electric heating cable according to claim 1 is characterized in that: said external insulation layer also is arranged with fluoroplastics protective layer (6) outward.