CN2476915Y

CN2476915Y - Electrothermal cable

Info

Publication number: CN2476915Y
Application number: CN 01214259
Authority: CN
Inventors: 田明
Original assignee: ELECTROTHERMAL CABLE SALES DEPARTMENT GUIYANG CARRIAGE WORKS
Current assignee: ELECTROTHERMAL CABLE SALES DEPARTMENT GUIYANG CARRIAGE WORKS
Priority date: 2001-02-23
Filing date: 2001-02-23
Publication date: 2002-02-13
Anticipated expiration: 2011-02-23

Abstract

The utility model discloses an electrical heating cable which includes a heating wire and an insulating layer which coats the heating wire. The external surface of the insulating layer is covered with a shielding layer, which is made of an aluminum alloy restrictive coating and connected with a grounding wire, and is also coated with an antisepticising coating which is made of the polyvinyl chloride material. The utility model is mainly used through the pavement under the ground and has the advantages of safe performance, freedom from the electromagnetic interference and corrosion durability. The utility model can not only be used for the heating at homes or in the offices, but also can be used in the demanding thermostatic chambers and for the coldness prevention and temperature preservation of the soil heating pipes, etc.

Description

Heating cable

The utility model relates to a kind of heating cable of the usefulness of warming oneself, and belongs to the electric heating technical field.

At present, the heating wire that is used to warm oneself in the prior art generally all is to adopt single heating wire, though this single heating wire has advantage of simple structure, exists unsafe problem of using when heating.For this reason, occurred a kind of surface in the prior art again and wrapped the heating cable of a layer insulating at single heating wire, though this heating cable has improved the security performance of using, but also exist in use to around environment the interference of electromagnetic field, shortcoming such as not corrosion-resistant, fragile are arranged, so its result of use still is not ideal enough.

The purpose of this utility model is: provide a kind of safe in utilization, do not produce electromagnetic interference, corrosion resistant heating cable.

The utility model is to constitute like this: it comprises heating wire (1) and the insulating barrier (2) that heating wire (1) is encased, on the outer surface of insulating barrier (2), be surrounded by the screen (3) that one deck adopts the aluminium alloy armouring to make, on screen (3), be connected with earth lead (4), on the outer surface of screen (3), be surrounded by the anticorrosion sheath (5) that adopts pvc material to make.

Owing to adopted technique scheme, the utility model is compared with existing heating cable, the utlity model has safe in utilization, do not produce electromagnetic interference, corrosion resistant advantage; The utility model mainly is to be layed in underground use in use in addition, therefore have do not take up space, heat from bottom to up, big, the heat radiation of area of dissipation evenly, advantages such as little, energy-saving and environmental protection of temperature gradient.During use, the utility model can be layed in the following of wood that bracing frame (7) are installed, bamboo floor (8) or directly be embedded in panel (9) the inside of concrete for making, when laying the utility model is installed, preferably lay the insulation material layer (6) that one deck has reflection foil in its lower section, and earth lead (4) reliable ground is got final product.The utility model not only can be used for family and office's heating, but also can be used for the occasions such as anti-freezing and heat-insulating of the thermostatic chamber and the soil water back of high requirement.

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the schematic diagram that the utility model is installed at ground spacing;

Accompanying drawing 3 schematic diagram that to be the utility model install at ground spacing not.

Embodiment of the present utility model: it is the flexible strong of 1 millimeter that heating wire (1) can adopt diameter, the tensile strength height, and has a material of positive temperature coefficient, or employing constantan wire material commonly used, insulating barrier (2) adopts the resistant to elevated temperatures polythene material that is twisted together to make, insulating barrier (2) is encased heating wire (1), on the outer surface of insulating barrier (2), wrap the screen (3) that one deck adopts the aluminium alloy armouring to make again, and screen (3) reliably is connected contact with earth lead (4), bag one deck adopts pvc material to make on the outer surface of screen (3) anticorrosion sheath (5) at last.

Claims

1, a kind of heating cable, it comprises heating wire (1) and the insulating barrier (2) that heating wire (1) is encased, it is characterized in that: on the outer surface of insulating barrier (2), be surrounded by the screen (3) that one deck adopts the aluminium alloy armouring to make, on screen (3), be connected with earth lead (4), on the outer surface of screen (3), be surrounded by the anticorrosion sheath (5) that adopts pvc material to make.