KR101219251B1 - Plane heating unit and manfacturing method of the same - Google Patents

Abstract

PURPOSE: A surface-heating element with a paper mulberry tree yarn fabric and a manufacturing method thereof are provided to prevent electrical sparks by maintaining an accurate contact point on a conductive heating yarn. CONSTITUTION: A paper mulberry tree yarn is made of a paper mulberry tree. Paper mulberry tree yarn fabric(12) is woven by arranging the paper mulberry tree yarn into the weft(121) and the warp(122). A conductive heating yarn is aligned at regular intervals by being inserted into a closed loop space. An electrode(16) is formed by consecutively arranging multiple metal wires. A jointing part is stitched by a metallic yarn and a carbon fiber yarn.

Description

Planar heating element having a mulberry fabric and a manufacturing method thereof {Plane heating unit and manfacturing method of the same}

The present invention relates to a planar heating element having a mulberry fabric and a method of manufacturing the same, and in particular, to improve electrical safety by eliminating contact defects between conductive heating yarns forming a contact and conducting wires due to the characteristics of a metallic material that expands when subjected to heat. The present invention relates to a planar heating element having a shrunken fabric and a method for producing the same.

In general, the planar heating element is a technology that generates the entire surface by insulated with an insulating material after the metal electrode is installed at both ends on the thin conductive conductive heating element. Unlike conventional heaters that generate resistance wires, even heat is radiated from the entire surface of the film, resulting in high heat efficiency, especially in the case of products using carbon (carbon black). The planar heating element having such characteristics is easy to control the temperature, is not polluted by air, so it is hygienic and noiseless. In addition to being widely used, it is widely used in various fields such as heating devices in commercial buildings such as offices and shops, and industrial heating devices in workshops, warehouses, and barracks.

In the conventional planar heating element, a synthetic fiber yarn is selected by weaving yarns and warp yarns to produce a heat generating fabric, and the carbon fiber yarns are woven together at regular intervals during the weaving process. At this time, the copper wire constituting the electrode is woven together in the heat generating fabric for the electrical conduction between the carbon fiber yarns. At this time, if the electrical contact between the carbon fiber yarn and the copper wire is not firmly secured, an electrical spark is generated, which is accompanied by a risk of fire.

As a background technology of the present invention, Korean Laid-Open Patent Publication No. 10-2010-0038511 has been proposed to produce a planar heating element that prevents sparks. In the manufacture of the planar heating element to prevent the spark, the process of weaving a spark-resistant auxiliary pole when weaving a base fabric of a predetermined width; Drying the base fabric by impregnating a paste mixed with an adhesive resin and an electrically conductive powder; Attaching copper tape, which is a main electrode line, to the impregnated conductive base fabric by using a paste mixed with an adhesive resin and an electrically conductive powder; Characterized in that the process of insulating the heating element is attached to the main and auxiliary poles.

However, in the background art, a manufacturing process such as an impregnation process, a copper tape adhesion process, an insulation process of a heating element is complicated, and the manufacturing cost is increased due to the addition of airborne.

Korea Patent Registration No. 10-0705462 Korea Patent Registration No. 10-0950294

The present invention was devised in view of the above circumstances, and improves electrical safety by eliminating source defects and sparks between the conductive wires due to the characteristics of the conductive heating yarn constituting the contact and the expansion of the metal when subjected to heat, thereby increasing the electrical safety and manufacturing cost. It is an object of the present invention to provide a planar heating element and a manufacturing method thereof having a Docsil fabric that can reduce the.

Planar heating element having a mulch fabric in accordance with a preferred embodiment of the present invention,

A mulberry fabric woven by arranging the mulberry prepared from the mulberry in a warp and a warp yarn;

Conductive heat yarns arranged in parallel at every predetermined interval by sequentially selecting ones of the weft yarns and the warp yarns arranged in the mulch fabric and being inserted into the closed loop spaces intersecting between the up and down directions;

Electrodes formed on both ends of a plurality of arranged conductive heating yarns in an orthogonal direction with conductive heating yarns for electrical conduction, and a plurality of metal conductors inserted in the closed loop space of the weft or inclined up and down direction during weaving of the fabric An additional feature is included.

In addition, the metal wires are installed to alternately continuously pass up and down directions by selecting a bundle of two or more wefts or inclinations orthogonal to the conductive heating yarns; A weft or warp of one bundle is characterized in that the force for pushing the metal lead to the conductive heating yarn side is increased.

In addition, the conductive adhesive consisting of a conductive filler made of any one or a composite of an epoxy-based binder and a metal powder, carbon or carbon fiber, graphite in the contact portion of the metal conductor wire and the conductive heating yarn is characterized in that the high-temperature curing.

In addition, the metal conductive wire and the conductive heating yarn is characterized in that it further comprises a joint portion stitched with a metal yarn in the overlapping portion.

In addition, it characterized in that it further comprises a joint portion sewn with carbon fiber yarn in the overlapping portion overlapping the conductive metal wire and the conductive heating yarn.

Method for producing a planar heating element having a mulberry fabric according to a preferred embodiment of the present invention,

Manufacturing the woven fabric of the woven yarn by inclining the prepared medicinal yarn from the mulberry;

Inserting the conductive carbon fiber yarns alternately one by one alternately the selected weft or warp one by one at a predetermined interval during the weaving of the mulberry fabric;

It was manufactured through the step of placing a plurality of strands by inserting a plurality of wefts or inclinations alternately alternately by alternately alternately by selecting a plurality of wefts or inclined in a direction orthogonal to the conductive carbon fiber yarns in order to energize the plurality of conductive carbon fiber yarns arranged in a plurality. It features.

In addition, the metal wire is characterized in that it is manufactured by including the step of installing two weft yarns or two warp yarns orthogonal to the conductive heating yarn in a pair alternately continuously up and down direction.

In addition, the conductive adhesive comprising a conductive filler made of any one or a composite of an epoxy-based binder and a metal powder, carbon or carbon fiber, graphite in the contact portion of the metal conductor and the conductive heating yarn is characterized in that it is manufactured. .

In addition, the metal conductive wire and the conductive heating yarn is characterized in that it further comprises the step of being sewn into the metal yarn in the overlapping portion.

In addition, the metal conductive wire and the conductive heating yarn is characterized in that it is manufactured by further comprising a step of being sewn with carbon fiber yarn in the overlapping portion.

According to the planar heating element having a fabric of the present invention, the metal wire is selected by two or more bundles of inclined yarns, and are woven alternately up and down alternately to maintain a reliable contact with the conductive heating yarn to generate electrical sparks. Can be removed

In addition, the contact portion is hardened by the conductive adhesive, so that the defect of the contact is removed, and the metal yarn and the conductive heating yarn are nailed, thereby increasing the electric binding force.

In addition, the manufacturing process is simple, and manufacturing cost can be reduced.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a block diagram of a planar heating element according to the present invention.
Figure 2 is an enlarged view of the main portion of the planar heating element according to the present invention.
Figure 3 is a sectional view of the main portion of the planar heating element according to the present invention.
Figure 4 is a schematic diagram added a conductive adhesive as a planar heating element according to the present invention.
5 is a configuration diagram in which a joint is added as a main sectional view of a planar heating element according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto.

1, 2 and 3, the planar heating element 10 according to the present invention includes a woven yarn fabric 12, conductive heating yarn 14 and the electrode portion 16 to form a plane. The conductive heating yarn 14 and the electrode portion 16 are woven orthogonal to each other on the fabric 12.

The mulberry fabric 12 is manufactured by weaving the mulberry produced by pulling the mulberry in the weft 121 and the warp 122 arranged. The weaving method of the weft 121 and the warp 122 can be a plain weave, a twill weave, or a vertical weave, but this embodiment shows that the weave is a plain weave. Here, the weft yarn 121 refers to a weft yarn woven in the horizontal direction and the inclination 122 is placed in the vertical direction. A method of manufacturing a mulberry can be prepared by, for example, obtaining white yarn from a mulberry and then slicing it into thin yarns to obtain a yarn and then twisting it. Since the mulch thread has little heat shrinkage, the force (contact force) for supporting the conductive heating yarn 14 does not change even when the weft 121 and the warp 122 receive heat.

The conductive heating yarn 14 is preferably a carbon fiber yarn having a low coefficient of thermal expansion. Carbon fiber yarn is composed of a plurality of filament yarns, including rayon based carbon fibers, PAN based carbon fibers, pitch based carbon fibers, and vapor phase grown carbon fibers. grown carbon fibers or Var-Vapour grown carbon fibers).

The conductive heating yarn 14 sequentially selects the weft yarns 121 or the inclined 122 arranged in the yarn fabric 12 in one direction and is inserted into a closed loop space intersecting between the up and down directions so as to have a predetermined interval. Each side is arranged side by side.

In this embodiment, the conductive heating yarn 14 is disposed in a direction parallel to the inclination 122. The conductive heating yarn 14 is woven to the portion where the inclined 122 will enter at regular intervals. Therefore, the conductive heating yarn 14 is installed by being sandwiched between the gaps of the upper and lower directions of the adjacent weft yarns 121 and 121. That is, the conductive heating yarn 14 is disposed while passing the weft 121 one by one sequentially up and down.

In this embodiment, the conductive heating yarns 14 are arranged side by side in the longitudinal direction, but may be arranged in a form (eg, S-shape) other than those illustrated.

The electrode portion 16 is a portion for applying electricity to the conductive heating yarn 14. That is, the electrode portion 16 is a portion for electric current conduction at both ends of the conductive heat generating yarn 14 arranged in plurality. The electrode portion 16 is composed of a plurality of metal conductors 16a disposed in a direction perpendicular to the conductive heating yarns 14. The metal lead 16a is sandwiched in the closed loop space above and below the warp 122 during the weaving of the yarn fabric 12 in this embodiment. In the metal wire 16a, a plurality of filaments form a single wire line. In this embodiment, the metal conductors 16a are provided in six rows in one electrode unit 16. The present invention is not limited to the number of installation columns of the metal conductors 16a, and of course, increase and decrease are possible.

Preferably, the metal wire 16a is installed to alternately pass the up and down directions by selecting two wefts 121 and 121 or two warp 122 and 122 orthogonal to the conductive heating yarn 14 in pairs. . In this embodiment, the metal conductors 16a are installed to alternately continuously pass in the up and down directions by selecting two or more inclinations 122 and 122 in one bundle. Therefore, the force of pushing the bundles 122 and 122 of the bundles 122 and 122 toward the conductive heating yarn 14 is increased to secure a reliable electrical contact between the metallic conductor 16a and the conductive heating yarn 14, thereby providing electrical Spark phenomenon can be eliminated.

On the other hand, the present invention is made of a conductive filler made of any one or a composite of an epoxy-based binder and a metal powder, carbon or carbon fiber, graphite in the contact portion of the metal conductor 16a and the conductive heating yarn 14 as shown in FIG. The conductive adhesive 18 may be applied and cured at high temperatures. The conductive adhesive 18 may be applied to all of the electrode portions 16 but may be partially used in this manner in consideration of manufacturing cost.

The conductive adhesive 18 may be bonded to the contact portion where the metal lead 16a and the conductive heating yarn 14 contact each other, thereby preventing electrical contact failure.

In addition, as a method for maintaining the contacts, as shown in FIG. 5, the joint 20 sewn with metal yarns may be further formed at a portion where the metal conductor wires 16a and the conductive heating yarns 14 cross each other. As another example, the joint part 20 sewn with carbon fiber yarn may be formed at a portion where the metal conductor wire 16a and the conductive heating yarn 14 cross each other.

The manufacturing method of an embodiment of the planar heating element configured as described above will be described.

First, to prepare a woven yarn fabric 12 woven with the weft yarn made from the mulberry to warp and weft.

Next, the conductive carbon fiber yarns are alternately inserted one by one alternately between the upper and lower sides of the selected weft 121 or the warp 122 one by one at regular intervals during the weaving of the mulberry fabric 12.

Then, a plurality of conductive carbon fiber yarns are arranged in a plurality of strands by alternately alternately selecting a plurality of wefts or warp yarns in a direction orthogonal to the conductive carbon fiber yarns in order to conduct electricity to both ends of the plurality of arranged conductive carbon fiber yarns. It is prepared through the steps.

In this case, the metal wire 16a may be installed to alternately pass the up and down directions by selecting two wefts 121 and 121 or two warp 122 and 122 orthogonal to the conductive heating yarn 14 in pairs. .

In addition, a conductive adhesive 18 made of an epoxy-based binder, a conductive filler made of any one of a metal powder, carbon or carbon fiber, graphite, or a composite is applied to a portion where the metal conductor wire 16a and the conductive heating yarn 14 are in contact with each other. It may further comprise the step.

In addition, the method may further include a step in which the metal conductor wire 16a and the conductive heating yarn 14 cross each other and are sewn with metal yarn. At this time, it can be sewn with carbon fiber yarn in place of the metal yarn.

The planar heating element constructed and manufactured as described above is woven by alternating up and down alternately by selecting a plurality of inclinations 122 each of the metal conductors 16a to maintain reliable contact with the conductive heating yarn 14, thereby eliminating the occurrence of electrical sparks. can do.

In addition, the contact portion is firm by the conductive adhesive 18, so that the defects of the contact are removed, and the metal yarn and the carbon fiber yarn foil are formed so that the electric binding force is increased.

In addition, the manufacturing process is simple and man-hours can be reduced, reducing manufacturing costs.

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 in light of the above teachings. will be.

12: Doc Fabric
121: weft
122: slope
14: conductive heating yarn
16: electrode part
16a: metal lead
18: conductive adhesive
20: Jointing part

Claims (10)

A mulberry fabric 12 that is woven by arranging the mulberry fabric prepared from the mulberry with the weft 121 and the warp 122; Conductively arranged in the closed loop space intersecting between the up and down direction by sequentially selecting the weft yarns 121 or the inclined 122 arranged in any one direction on the doctor fabric 12 and arranged side by side at regular intervals A heat generating yarn 14; A plurality of conductive heating yarns 14 arranged at both ends are disposed in a direction perpendicular to the conductive heating yarns 14 for electrical conduction, so that the weft yarns 121 or the up and down directions of the warp yarns 122 are woven during the weaving of the yarn fabric 12. In the planar heating element having a labyrinth fabric comprising: an electrode portion 16 formed by continuously arranging a plurality of metal conductors 16a sandwiched in a closed loop space,
Two or more weft yarns 121 and 121 or inclinations 122 and 122 orthogonal to the conductive heating yarn 14 are selected as the bundle of the metal conductors 16a of the electrode portion 16 alternately and continuously. Installed so as to pass so that a bundle of the wefts 121 and 121 or the inclination 122 and 122 is increased to push the metal conductor 16a toward the conductive heating yarn 14,
The joint part 20 sewn with metal yarn or carbon fiber yarn is provided at a portion where the metal conductor wire 16a and the conductive heating yarn 14 cross each other.
Applying a conductive adhesive 18 made of an epoxy-based binder and a conductive filler made of any one or a composite of metal powder, carbon or carbon fiber, and graphite to the contact portion of the conductive metal wire 16a and the conductive heating yarn 14 A planar heating element having a docile fabric characterized in that the electrical contact failure is prevented by curing at high temperature. delete delete delete delete delete delete delete delete delete

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