CN203563212U - Flexible heater - Google Patents

Abstract

The utility model discloses a flexible heater, comprising a base material used for shaping. An electric wire which emits heat after being powered on is disposed in the base material. An outer side of the electric wire is provided with a heat conduction layer. The flexible heater has no radiation in a whole circuit, and is covered by the heat conduction layer, so heat in a product can transferred to the surface uniformly and rapidly. Use of the heater is comfortable, and local overheating would not occur, and potential safety hazard does not exist.

Description

Flexible heating element

Technical field

The utility model relates to a kind of flexible heating element.

Background technology

The general designation of the products for civilian use such as flexible heating element is that common on the market warm foot is precious, electric blanket and Electric heating bedding, the heat retaining and exothermal material that flexible heating element adopts mostly in the market is electric nickel filament heater, in routine use, easily because exothermic material is local, bends, crumple etc., cause the high heat of this material at high temperature, thus the accident of meeting accident; In flexible heating element, heating wire is directly fixed on cloth or leather in addition, cloth or leather be temperature during not higher than 350 ℃ conductive coefficient be not more than the insulation material of 0.12W/ (mK), heat in so flexible heating element can not conduct rapidly and uniformly and cause its surface, thereby cause its inner local overheating, use people and feel under the weather even because local overheating has an accident and accident.Warmer, because heating wire opens circuit and the factor such as heat conduction is inhomogeneous, has certain potential safety hazard during use in the market in a word, and a certain amount of security incident has all occurred every year.

Utility model content

Primary and foremost purpose of the present utility model is to provide a kind of heating even, the flexible heating element that coefficient of safety is high, and concrete scheme of the present utility model is as follows for achieving the above object:

A flexible heating element, comprises the base material for moulding, is provided with the rear heatable heating wire of energising in described base material, and described heating wire outside is provided with heat-conducting layer.

Preferably, described heat-conducting layer is aluminium foil.

Preferably, described heating wire comprises the heart yearn of solderless wrapped connection heating wire, and described heart yearn outside is surrounded by heat-sensitive layer, in the outer counter of heat-sensitive layer, to solderless wrapped connection, protects silk, and has insulating barrier in a protection silk outer cover;

One end of described heating wire is connected with one end of described protection silk, and the other end of the other end of described heating wire and described protection silk is connected to two poles.

The full line zero radiation of flexible heating element that the utility model provides, and being covered by heat-conducting layer, in product, heat is delivered to its surface evenly, fast, uses comfortablely, and there will not be local overheating, there is no potential safety hazard.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:

Fig. 1 is the utility model example structure schematic diagram.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, describe the utility model in detail, in this illustrative examples of the present utility model and explanation, be used for explaining the utility model, but not as to restriction of the present utility model.

Embodiment

As shown in Figure 1, a kind of flexible heating element, comprise the base material 1 for moulding, according to the heterogeneity of the products for civilian use such as warm foot treasured, electric blanket and Electric heating bedding, carry out selection moulding, the present embodiment be take cotton layer simple in structure as example, is provided with the rear heatable heating wire 2 of energising in described base material 1, heating wire 2 can be realized and being electrically connected to of controller 4 by terminal box 3, described heating wire 2 outsides are provided with can be around the heat-conducting layer 5 of volume, and in the preferred version of the present embodiment, described heat-conducting layer 5 is aluminium foil.

As the preferred version of above-described embodiment scheme, described heating wire comprises the heart yearn of solderless wrapped connection heating wire, and described heart yearn outside is surrounded by heat-sensitive layer, in the outer counter of heat-sensitive layer, to solderless wrapped connection, protects silk, and has insulating barrier in a protection silk outer cover; One end of described heating wire is connected with one end of described protection silk, the other end of the other end of described heating wire and described protection silk is connected to two poles, like this, can realize magnetic field cancellation by the reverse acting spiral canoe of heating wire and protection silk on the one hand, thereby effectively eliminate the magnetic field radiation phenomenon that heating wire produces in energising use procedure, avoided the healthy adverse effect of bringing to user; On the other hand; anomalies such as folding when having, pleating or short silk sparking and melting after heat-sensitive layer; because heating wire dwindles the resistance that exchanges of whole piece heating wire with the partial short-circuit of protection silk; electric current increases; thereby the fuse in controller is disconnected; cut off external power supply, play thus corresponding protective effect.

The technical scheme above the utility model embodiment being provided is described in detail, applied specific case herein the principle of the utility model embodiment and execution mode are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; , for one of ordinary skill in the art, according to the utility model embodiment, in embodiment and range of application, all will change, in sum, this description should not be construed as restriction of the present utility model meanwhile.

Claims (2)

1. a flexible heating element, comprises the base material for moulding, is provided with the rear heatable heating wire of energising in described base material, it is characterized in that:

Described heating wire outside is provided with heat-conducting layer;

Described heating wire comprises the heart yearn of solderless wrapped connection heating wire, and described heart yearn outside is surrounded by heat-sensitive layer, in the outer counter of heat-sensitive layer, to solderless wrapped connection, protects silk, and has insulating barrier in a protection silk outer cover;

One end of described heating wire is connected with one end of described protection silk, and the other end of the other end of described heating wire and described protection silk is connected to two poles.

2. flexible heating element as claimed in claim 1, is characterized in that:

Described heat-conducting layer is aluminium foil.

Images