KR101734378B1 - Preparation method of heating unit of carbon textile, and heating unit of carbon textile prepared thereby - Google Patents

Abstract

The present invention relates to a method for preparing a carbon fabric surface heating body and a carbon fabric surface heating body prepared thereby. The method comprises: a step of attaching an electrode body to a first electrode line and a second electrode line of a fabric using carbon adhesive; and a step of fixing the electrode body above and below the fabric. A gap is not generated between the electrode body and the heating body so as to prevent spark due to the gap.

Description

[0001] The present invention relates to a method of producing a carbon fabric surface heating element and a carbon fabric surface heating element produced by the above method,

The present invention relates to a method for producing a carbon fabric surface heating element having excellent stripping stability and conductivity and a carbon fabric surface heating element manufactured by the method. More particularly, the present invention relates to a carbon fabric surface heating element, The present invention relates to a technique for producing a carbon fiber side surface object which can prevent the generation of gaps with a heating element and can exhibit smooth conductivity even when disconnection occurs in an electrode wire woven in a carbon cloth.

Generally, the surface heating element is installed in a heating mattress, a building wall, a partition, etc., and is used for heating. Since such an area heating element generates heat in an area compared to a conventional heating method, it has excellent heat generating efficiency, low power consumption, smoothness and durability And it has been used quite usefully.

In such a conventional planar heating element, a (+) pole conductor and a (-) pole conductor are placed so as to be spaced on both sides to energize the (+) pole conductor and the (+) Pole conductor and the (-) pole conductor so that the carbon heating element is heated by electric energy applied to the (+) polar conductor and the (- It is common.

Meanwhile, the conventional planar heating element is used as a conductor to be woven by using the same polarity as the copper wire. However, the polar line is easily broken due to frequent folding or external impact during use, And there was a risk of fire occurrence.

In order to solve this problem, Korean Patent Registration No. 10-0668052 discloses a method in which an electrode body having a certain width in the form of a copper tape is used as an electrode body on a carbon fiber fabric and these are attached with an adhesive or the like. I proposed a technique to solve the problem. In this technique, as a technique for preventing the copper tape from generating a gap from the carbon cloth fabric and generating spark, carbon powder is used as a component used as an adhesive to prevent a gap between the copper tape and the carbon cloth fabric And fire and other safety accidents can be prevented.

However, even if an adhesive containing carbon powder is used in this technique, there is always a possibility that the copper tape is detached from the carbon cloth fabric because the adhesive is hardened or crumbled with the lapse of time. When the copper tape is detached from the carbon cloth, the spark is inevitable as in the conventional technique. If a spark occurs, a discontinuity occurs in the spark, so that the heat is not generated and the possibility of fire is high.

[Related Prior Art Documents]

Korean Patent No. 10-1393799

Korean Patent No. 10-1393873

Korean Patent No. 10-0974272

Korea Patent No. 10-0683173

Korean Patent No. 10-1577242

The present invention has been developed in consideration of the above-described circumstances of the prior art, and it is an object of the present invention to provide a planar heating element which is installed in a heating mattress, a building wall, The present invention is intended to provide a technique for producing a carbon fiber side planar object capable of exhibiting smooth conductivity even when disconnection occurs in an electrode wire which is woven in a carbon cloth.

In order to achieve the above object,

(1) Weft yarns and weft yarns are woven in such a manner that a plurality of first electrode lines and a plurality of second electrode lines are disposed between the warp yarns and the warp yarns in the warp direction, and the warp yarns are arranged at predetermined intervals in the warp direction, ;

(2) a second step of attaching an electrode tape on the first electrode line and the second electrode line of the manufactured fabric using a carbon adhesive, wherein the electrode tape comprises a plurality of holes at regular intervals ; And

(3) coating the synthetic resin with the synthetic resin adhering the electrode tape with the synthetic resin passing through the plurality of holes of the electrode tape, thereby fixing the electrode tape above and below the synthetic resin;

The present invention provides a method for producing a carbon fabric surface heat emission element.

In one embodiment of the present invention, the electrode body tape is attached so as to cover three to five of the first electrode line and the second electrode line in (2).

In one embodiment of the present invention, the width of the electrode body tape in (2) is in the range of 1.0 to 2.0 cm, and the interval between the first electrode line and the second electrode line covered by the electrode tape is 0.2 To 0.5 cm.

In one embodiment of the present invention, the method further comprises dying the fabric with the electrode body tape impregnated with the electrode body tape in (2).

Further, in an embodiment of the present invention,

(a) 30 to 50 wt.% of a carbon powder having a particle size of 0.01 to 0.1 mu m, 30 to 50 wt.% of a carbon powder having a particle size of 1 to 10 mu m, silver coated copper powder, silver coated aluminum powder, 5 to 10 parts by weight of a powder component comprising 0.1 to 20% by weight of a mixed fine powder containing coated graphite powder,

(b) 60 to 80 parts by weight of at least one synthetic resin selected from polyester and polyurethane,

(c) 10 to 18 parts by weight of ethylene vinyl acetate, and

(d) 0.1 to 5.0 parts by weight of an additive including a dispersing agent, a coupling agent, a defoaming agent and an antioxidant is mixed and pulverized in a vibration mill for 10 to 30 minutes, And that the thickness of the carbon liquid to be cured is in the range of 0.1 to 50 mu m.

In one embodiment of the present invention, in (3), the synthetic resin film is coated by heat-sealing or by dipping in a synthetic resin solution followed by drying. do.

Further, in one embodiment of the present invention, the synthetic resin in (3) is characterized by using a synthetic resin selected from polyurethane, polyvinyl chloride, polyethylene, polyester, silicone and polycarbonate.

When the planar heating element is manufactured using the technique according to the present invention, the electrode body provided on the heating element is formed in a tape shape, and the tape shape includes a plurality of holes at regular intervals, so that the synthetic resin coating liquid passes through the holes So that the tape-like electrode body can be firmly fixed from the outside. Therefore, a gap is not generated between the electrode body and the heat generating element, so that it is possible to prevent the occurrence of sparking due to the gap as in the conventional technique.

In addition, even when disconnection occurs in the electrode wire included in the existing carbon cloth, since the tape-shaped additional electrode body covers the electrode wire, it is possible to exhibit smooth conductivity without being broken.

FIG. 1 is a view showing a shape of a conventional planar heating element, and FIG. 2 is an AA sectional view of the planar heating element of FIG.
FIG. 3 is a view showing another shape of a conventional planar heating element, and FIG. 4 is a BB sectional view of the planar heating element of FIG.
FIG. 5 is a view showing the shape of a planar heating element according to an embodiment of the present invention, and FIG. 6 is a sectional view taken along a plane CC of the planar heating element of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, and thus are not limitative of the scope of the invention.

Fig. 1 is a view showing a conventional shape of the surface heating element, and Fig. 2 is a sectional view taken along the line A-A in Fig.

In the planar heating element as shown in the figure, carbon is printed on the surface of the heating element 10 formed of a paper material to form the carbon printed layer 10a, electrode elements 20 and 21 are arranged on the heating element, The insulator presses the electrode body so that the electrode body and the heating body are in surface contact with each other and can be electrically connected to each other.

However, when the surface heating element is repeatedly bend or pulled, the coated insulator 30 is easily lifted and can not press the electrode body, so that the heating body 10 and the electrode bodies 20 and 21 The carbon print layer 10a may be cracked and the electrical contact may become poor. As a result, sparks may occur, thereby increasing the risk of fire or other safety accidents.

3 is a view showing another shape of a conventional planar heating element, and Fig. 4 is a sectional view taken along line B-B of the planar heating element of Fig.

In the case of FIGS. 3 and 4, instead of forming a carbon print layer on a heating element in the form of a paper, the electrode body 20, 21 is disposed on the heating element 40 after the carbon- As the insulator 30 is pressed against the surface, the insulator presses the electrode body so that the electrode body and the heating body can be in surface contact with each other to be electrically connected.

In this case, it is less likely that cracks will occur in the heating-element body 40 if repeatedly folded or pulled, etc., are subjected to stress due to deformation, but there is a possibility that a gap will be generated between the heating-element body 40 and the electrode bodies 20, The spark occurs at the point where the gap is generated, and the possibility of fire still exists.

FIG. 5 is a view showing the shape of a planar heating element according to an embodiment of the present invention, and FIG. 6 is a sectional view taken along line C-C of the planar heating element of FIG.

A method of manufacturing a carbon fabric side heating element according to the present invention will be described with reference to the drawings.

The carbon fabric surface heating element according to the present invention is produced in the following order. In other words,

(1) Weft and weft yarns 100 are woven in such a manner that a plurality of first electrode lines 400 and a plurality of second electrode lines are disposed between the warp and the warp in the warp direction, 101) so that the fabric 100 is woven;

(2) Attaching the electrode tape 200 using a carbon adhesive on the first electrode line and the second electrode line of the fabricated fabric, wherein the electrode tape includes a plurality of holes 201 at regular intervals A second step of using one; And

(3) A cloth having the electrode body tape 200 is coated with a synthetic resin 300, and the synthetic resin is hardened through a plurality of holes 201 of the electrode body tape, (200) on the upper and lower sides of the fabric;

.

Hereinafter, each step will be described in more detail.

First, the fabric is woven using general synthetic fibers or natural fibers as wefts and warp yarns. At this time, the fabric is manufactured such that the electrode lines, specifically the first electrode lines and the second electrode lines, are arranged between the inclination and the inclination at regular intervals in the inclined direction. In this case, the first electrode line and the second electrode line are a (+) electrode line and a (-) electrode line, respectively, and are connected to an external power source to supply electrical energy to the fabric. The first electrode line and the second electrode line may be made of copper.

Further, in the weft direction, a tubular warp yarn, specifically carbon-coated fibers, is arranged at a predetermined interval to weave the fabric.

The first step process is not substantially different from the conventional method of manufacturing the planar heating element.

Then, in the second step, the electrode tape 200 is attached to the first electrode line and the second electrode line of the prepared fabric. At this time, the electrode tape may be usually adhered using an adhesive, but in the case of a general adhesive, it is preferable to use a carbon adhesive containing carbon powder to attenuate the energizing effect.

The electrode tape used in this process can be a thin copper tape, for example, and the electrode tape has a plurality of holes 201 formed at regular intervals as shown in FIGS. 5 and 6 do.

At this time, as described later, the hole of the electrode tape plays a role of fixing the raw material and the electrode tape by tightly passing the coating liquid through the hole 201 in the synthetic resin coating process.

In addition, the electrode catheter is attached so as to cover the first electrode line and the second electrode line on the first electrode line and the second electrode line, which are usually made of copper wire. In the present invention, the electrode line material is attached to the first electrode line and the second electrode line It is preferable that the number of covers is 3 to 5.

For example, the width of the electrode body tape is in the range of about 1.0 to 2.0 cm, and the interval between the first electrode line and the second electrode line covered by the electrode tape is in the range of 0.2 to 0.5 cm desirable.

The heating fabric woven fabric fabricated in the above-described manner may be used as it is because it includes a transcription yarn in the direction of weft, but it is more preferable to coat the entire fabric with carbon in order to increase the heating efficiency. That is, a process of impregnating the fabric with the electrode body tape 200 in the carbon liquid may be further performed.

Specifically, the carbon fiber dyeing is carried out by impregnating the carbon fibers with the electrode body, passing the carbon fibers through a pair of pressure rollers, pressing the carbon fibers uniformly so as to penetrate the carbon fibers uniformly, The carbon liquid is dried and cured.

The carbonaceous liquid used in the present invention may be a carbonaceous liquid generally used in the technical field of the present invention, but a carbonaceous liquid specially devised by the present inventor can be used in order to increase the heating efficiency.

The carbon liquid used in the present invention has the following composition. In other words,

(a) 30 to 50 wt.% of a carbon powder having a particle size of 0.01 to 0.1 mu m, 30 to 50 wt.% of a carbon powder having a particle size of 1 to 10 mu m, silver coated copper powder, silver coated aluminum powder, 5 to 10 parts by weight of a powder component comprising 0.1 to 20% by weight of a mixed fine powder containing coated graphite powder,

(b) 60 to 80 parts by weight of at least one synthetic resin selected from polyester and polyurethane,

(c) 10 to 18 parts by weight of ethylene vinyl acetate, and

(d) 0.1 to 5.0 parts by weight of an additive including a dispersing agent, a coupling agent, a defoaming agent and an antioxidant is mixed and pulverized in a vibration mill for 10 to 30 minutes, And that the thickness of the carbon liquid to be cured is in the range of 0.1 to 50 mu m.

When the carbon liquid prepared by the above method is used, the fixing force to the fabric fibers is increased and the efficiency of the energization is high, so that the heating efficiency is high and the power consumption rate is low. In addition, even when the stress due to the deformation of the fabric is exerted due to the effect of the carbon liquid, it is possible to prevent the fabric from being cracked due to excellent elongation and shrinkability.

Next, as shown in (3), an insulation made of a synthetic resin 300 is coated on the surface of the heating element body to protect the heating element body and prevent electric leakage or electric shock.

In the present invention, the synthetic resin is preferably a polyurethane, a polyvinyl chloride, a polyethylene, a polyester, a silicone, a polycarbonate or the like and has good warping property, weatherability and durability after curing. The method of covering the synthetic resin may be a method of impregnating a synthetic resin liquid with a cloth and then curing it by passing through a roller. Alternatively, a film made of a synthetic resin may be covered on top and bottom, You can also use the method.

Referring to FIG. 6, the carbon cloth side heating element manufactured by the method according to the present invention has a structure in which the electrode body tape 200 is connected to the first electrode line 400 or the second electrode line, There is no problem in energization, so that there is no problem that the heat generation is stopped as a whole.

In addition, the carbon fabric side heating element manufactured by the method according to the present invention has a structure in which the synthetic resin penetrates through the plurality of holes 201 provided in the electrode body tape 200 to form a covering, and the synthetic resin covers the upper and lower portions of the heating body It is possible to prevent the electrode tape from separating from the synthetic resin covering due to frequent deformation and to prevent the gap from being generated. Therefore, it is possible to significantly increase the possibility of occurrence of a safety accident such as fire by preventing occurrence of spark, and it is possible to prevent a complaint factor of a consumer in advance.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. And should be construed as falling within the scope of protection.

10: fabric upper fabric 20, 21: electrode body
30: insulator 40: heating element fabric
100: fabric 101, 102:
200: Electrode tape 201: Hole
300: synthetic resin 400: first electrode line

Claims (8)

(1) Weft yarns and weft yarns are woven in such a manner that a plurality of first electrode lines and a plurality of second electrode lines are disposed between the warp yarns and the warp yarns in the warp direction, and the warp yarns are arranged at predetermined intervals in the warp direction, ;
(2) a second step of attaching an electrode body tape on the first electrode line and the second electrode line of the woven fabric using a carbon adhesive, wherein the electrode body tape comprises a plurality of holes at regular intervals ; And
(3) coating the synthetic resin with the synthetic resin adhering the electrode tape with the synthetic resin passing through the plurality of holes of the electrode tape, thereby fixing the electrode tape above and below the synthetic resin;
And,
Further comprising the step of impregnating the carbon fiber with the fabric to which the electrode tape has been attached in the step (2) to dyes the carbon fiber,
(a) 30 to 50 wt.% of a carbon powder having a particle size of 0.01 to 0.1 mu m, 30 to 50 wt.% of a carbon powder having a particle size of 1 to 10 mu m, silver coated copper powder, silver coated aluminum powder, 5 to 10 parts by weight of a powder component comprising 0.1 to 20% by weight of a mixed fine powder containing coated graphite powder,
(b) 60 to 80 parts by weight of at least one synthetic resin selected from polyester and polyurethane,
(c) 10 to 18 parts by weight of ethylene vinyl acetate, and
(d) 0.1 to 5.0 parts by weight of an additive including a dispersing agent, a coupling agent, a defoaming agent and an antioxidant is mixed and pulverized in a vibration mill for 10 to 30 minutes, And the thickness of the carbon liquid to be cured is in the range of 0.1 to 50 mu m.
The method according to claim 1,
Wherein in the step (2), the electrode body tape is attached so as to cover three to five of the first electrode line and the second electrode line, respectively.
The method according to claim 1,
The width of the electrode body tape in the step (2) is in the range of 1.0 to 2.0 cm, and the interval between the first electrode line and the second electrode line covered by the electrode tape is in the range of 0.2 to 0.5 cm Of the surface of the carbon fabric.
delete delete The method according to claim 1,
In the step (3), the synthetic resin film is coated by heat-sealing or dipping in a synthetic resin solution followed by drying to coat the synthetic resin film.
The method according to claim 1,
Wherein the synthetic resin in the step (3) is a synthetic resin selected from the group consisting of polyurethane, polyvinyl chloride, polyethylene, polyester, silicone and polycarbonate.
A carbon fabric side heating element produced by the method of any one of claims 1 to 3, 6 and 7.

Images