CN2303423Y

CN2303423Y - Low voltage flexible electric fabrics

Info

Publication number: CN2303423Y
Application number: CN 97234819
Authority: CN
Inventors: 黄侣群
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-17
Filing date: 1997-06-17
Publication date: 1999-01-06
Anticipated expiration: 2007-06-17

Abstract

The utility model relates to low voltage flexible electric heating fabric, composed a random length base layer crossly knitted with warp threads and weft threads and an electric heating element, wherein, the warp threads on the electric heating element and the base layer are combined together to knit a heating zone; at least one no-alloy-wire warp thread is spaced between the warp threads provided with alloy wires on the base layer. The utility model has the advantages of good folding resistance, safety, flexible and convenient clipping wire connection, thin integral thickness, low cost, etc.; the utility model can be used for manufacturing heating and thermal protection products for human bodies and can also be used as an auxiliary heat source on medical care products.

Description

The low-voltage electroheating flexible fabric

The utility model relates to a kind of electric calorifie installation, and particularly a kind of low-voltage that is applicable to is carried out the electrically heated flexible fabric that has.

In the prior art, products such as warming goods of domestic electric heating such as electric blanket, over blanket, electric pad, Electric heating sleeping bag electric heating life vest, its heat generating components mainly is to be made of resistance wire or multiply copper core, single diameter is generally greater than 0.2 millimeter, the multiply diameter is generally greater than 0.5 millimeter, and adopts the S type or the type line mode of spiraling back and forth to make electric heating body.Its product great majority use the voltage of 220V, and the DC power supply of bulkiness, and therefore, this series products all exists following defective in varying degrees:

1, the sectional area of electric heating element is bigger, brings the rigidity of electric heating element big thus, and not folding is folded, and not anti-how much shapes use.Dirty back inconvenience even can not wash, behaviour in service is restricted.

2, its resistance value of the resistance wire that sectional area is big is little, must have certain length could work (being generally tens meters to hundreds of rice), therefore can not be suitable for for the less product of usable floor area (routine gloves etc.).

3, directly use the 220V voltage pole dangerous, easily cause burning when poor electric contact, and insulation object in the product is required height, technology difficulty is big, has increased material cost.As adopt compact power, then involve great expense.

4, comprise that basic unit's insulant equal thickness is big in the general prior art, so the thickness increase of making behind the product is more obvious, makes product design too fat to move, the scope of application is less.

The purpose of this utility model is: overcome above-mentioned defective of the prior art, provide a kind of low-voltage that is applicable to carry out the electrically heated flexible fabric that has.

The utility model is to be achieved through the following technical solutions its purpose: in formed the basic unit of random length and low-voltage electroheating flexible fabric that electric heating element constituted by warp, parallel interlacing, the warp of the electric heating element that is made of the alloy silk in basic unit merges and is woven into the thermal treatment zone, is equipped with between the warp of alloy silk the warp of an alloy-free silk at least at interval in the basic unit.

Above-mentioned electric heating element is a nichrome wire, and its diameter is 0.04～0.1 millimeter.

Basic unit's warp, parallel are made of cotton yarn.

Two ends, the described thermal treatment zone are the district of cutting across that makes things convenient for cutting basic unit and be convenient to the electric heating element connection, and this alloy silk and warp that cuts across in the district is separated, and the braiding of tripping parallel is put on basic unit.

Owing to adopted technique scheme, made the utlity model has:

1, folding resistance is good.This product is in 180 ° cripping test, and bent 1000 times more than the number, its pliability can be used down with how much states at any position of human body, make product in conjunction with textile after, integral body can be washed at washing machine, pollution abatement.

2, the utility model uses the low tension of 3.6V～30V, and is very high to the human body coefficient of safety.

3, the gapped parallel example of alloy silk makes thermal treatment zone heat even, and connection type is convenient, flexible, can adopt the connecting mode of serial or parallel connection according to different requirements, and the utilization voltage range is big.The utility model can use greater than 8 * 5CM ²Any area on, cutting and wiring are all very flexible.

4, because electric heating element adopts the less nichrome wire of diameter, weave in the lump with warp in the basic unit, therefore integral thickness of the present utility model is very thin, and its scope of application is quite extensive.

In sum, the utlity model has characteristics such as folding resistance is good, safe and reliable, the cutting easy-to-connect is flexible, integral thickness thin, applicability is strong, can be used for making the warming goods of heating of human body, also can be used as the auxiliary thermal source on the medical health article.With low cost, market prospects are very extensive.

The utility model will be further described below in conjunction with accompanying drawing and embodiment.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the A-A profile of Fig. 2;

Fig. 4 is the schematic diagram of the utility model electric heating element tie;

Fig. 5 applies to the schematic diagram of electrically heated glove for the utility model;

Schematic diagram when Fig. 6 applies to the electric heating waistband for the utility model;

Schematic diagram when Fig. 7 applies to electric blanket for the utility model.

With reference to Fig. 1, Fig. 2 and Fig. 3, the utility model forms the basic unit 3 of random length by warp 1, parallel 2 interlacings, electric heating element 4 be woven in basic unit 3 in.Its concrete braiding structure is: the warp 1 of the electric heating element 4 that is made of the alloy silk in basic unit 3 merges and is woven into the thermal treatment zone 5, is equipped with between the warp 1 of alloy silk 4 warp 1 of an alloy-free silk at least at interval in the basic unit 3.

The described electric heating element 4 of present embodiment adopts nichrome wire, and this alloy silk can be high temperature resistant to 1080 ℃, and folding resistance is better, and mechanical strength can be complementary with cotton yarn.Its diameter is 0.04～0.1 millimeter, merges braiding with warp 1, the warp of the two alloy-free silks in interval between the warp of every merging nichrome wire.The view picture fabric can adopt 24～84 nichrome wires.

Warp 1 in the described basic unit 3 of present embodiment, parallel 2 are made of the cotton yarn that all is employing 100%.Cotton yarn has fabulous softness, folding resistance, enough mechanical strengths are arranged, sufficient raw material sources are arranged again, processing quality is stable after the cotton yarn moulding, cost is also lower, its characteristic can fully closely apply to wear clothes on goods and other textiles, can soak and does not change initial quality, so be well suited for as basic unit.

The two ends of the thermal treatment zone 5 described in the utility model are to make things convenient for cutting basic unit and be convenient to cutting across of electric heating element connection to distinguish 6, and this alloy silk 4 that cuts across in the district 6 is separated with warp 1, and the braiding of tripping parallel 2 is put on the face of basic unit 3.When needs add man-hour, can according to the product area seek to be fit to cut across the district 6, cut off along the central authorities of cutting across district 6, then cut across the alloy silk 4 that is separated with basic unit 3 in the district 6 and just can be used as the tie of each thermal treatment zone 5, and can carry out various forms of connections as requested easily.

With reference to Fig. 4, the technology that electrically connects of the present utility model is simple and firmly, and as shown in the figure, the alloy silk 4 of required connection is carried out serial or parallel connection by designing requirement twist and lump together, and with its welding; If on the lead-out wire 7 that the be welded in multiply copper cash that need draw constitutes.Utilizing welding procedure is in order to make interface that reliable firmly degree be arranged, also can to reduce node current simultaneously, help allowing electric current entirely as for thermal treatment zone work, thus saves energy.

With reference to Fig. 5, this figure provides a kind of electrically heated glove, is equipped with a utility model in the middle of this electrically heated glove, and the lectrothermal alloy wire 4 of one end is connected together, 4 each minutes of other end lectrothermal alloy wire half be connected in lead-out wire 7, and lead-out wire 7 joining powers or switch are arranged.The skin 8 of electrically heated glove can be that the textile of various linings such as nylon, blending fancy suiting, camlet, flannelette is made.

Fig. 6, Fig. 7 provide electric heating waistband and the electric blanket that utilizes the utility model to do respectively, and its structure is basic identical with above-mentioned electrically heated glove, and this is that the coupling method of lectrothermal alloy wire 4 is not quite similar, and repeats no more here.

Claims

1, a kind of low-voltage electroheating flexible fabric, the basic unit and the electric heating element that are formed random length by warp, parallel interlacing are constituted, it is characterized in that: the warp of the electric heating element that is made of the alloy silk in basic unit merges and is woven into the thermal treatment zone, is equipped with between the warp of alloy silk the warp of an alloy-free silk at least at interval in the basic unit.

2, low-voltage electroheating flexible fabric according to claim 1 is characterized in that: described electric heating element is a nichrome wire.

3, according to claim 1,2 described low-voltage electroheating flexible fabrics, it is characterized in that: described nichrome filament diameter is 0.04～0.1 millimeter.

4, low-voltage electroheating flexible fabric according to claim 1 is characterized in that: described basic unit warp, parallel are made of cotton yarn.

5, low-voltage electroheating flexible fabric according to claim 1, it is characterized in that: two ends, the described thermal treatment zone are the district of cutting across that makes things convenient for cutting basic unit and be convenient to the electric heating element connection, this alloy silk and warp that cuts across in the district is separated, and the braiding of tripping parallel is put on basic unit.