KR101970795B1 - Heating mat having high durability - Google Patents

Abstract

The present invention is a heat generating mat formed of the outer surface constituting the appearance of the mat and the cushion to form the basic shape of the mat and the thermal insulation function, the reinforcement layer, the heat generating fabric is sequentially laminated on the cushion portion, the reinforcement layer is It relates to a heat generating mat having a durability between the cushion portion and the heating element is bonded to the cushion portion and not bonded to the heating element.

Description

Heat-generating mat with durability {HEATING MAT HAVING HIGH DURABILITY}

The present invention relates to a heat generating mat, and more particularly, to a heat generating mat having increased durability by preventing damage to a heat generating fabric which is embedded in the heat generating mat to generate heat.

The heating mat is a mat that generates heat by heating the mat by heating the mattress, jade mat, stone bed, care, cushion, etc. have.

In general, the heating element embedded in the heating mat mainly uses a linear heating element using a heating wire such as a coil or a surface heating element that generates heat on a surface using carbon fiber.

Particularly, among the linear heating elements, many heating mats using inexpensive PVC heating wires have been sold, but since the lifespan is short and there is a risk of fire, linear heating elements using silicon coated metal heating wires are used rather than PVC heating wires.

However, when using a linear heating element using a silicon-coated metal heating wire, there is a manufacturing hassle to embed the metal wire inside the mat in a zigzag shape, and when the mat is folded or impacted, the heating element, which is a metal wire, is disconnected to generate heat. There is a problem that becomes impossible.

The planar heating element was developed to solve the problem of the linear heating element as the carbon fiber yarn is used to heat the carbon fiber yarn by arranging it along several paths as if the pipe is piped to an indoor ondol room and then covering the cover. After stirring the activated carbon (carbon material and graphite), which is a conductor, and the binder, which is an insulator, it is applied to a cloth or film surface and bonded on both sides by a resin film so that the electrode strip is arranged, and the electrode strip at any one place. There was a way to generate heat by electrically connecting the power line.

As described above, the planar heating element using carbon fiber provided heat to the mat while the carbon fiber was generated by electrical resistance when power was applied to the carbon fiber through the conductive wire.

As described above, the conventional heating mat includes a linear heating element or a planar heating element. When the heating mat is used, a malfunction occurs in which the heating mat is severely generated when the heating mat is bent or folded, and the internal heating element is damaged or damaged. There was a problem that occurred.

An object of the present invention is to provide a heating mat having high durability by preventing damage to the heating element due to wrinkles or folding of the heating mat to solve the above problems.

In addition, the object of the present invention is to provide a heat generating mat having high durability for ease of use by not feeling foreign matters due to the wire harness inside the heat generating mat by using the structural design of the heat generating element.

The present invention is a heat generating mat formed of a cushion forming the basic shape of the mat and the outer cover constituting the appearance of the mat to perform the warming function, the reinforcing layer, the heat generating fabric is sequentially laminated on the cushion portion, the reinforcing layer is Only the outer periphery of the reinforcing layer is bonded to the cushioning portion between the cushioning portion and the heat generating fabric, and the center portion is not bonded. The bonding between the reinforcing layer and the heat generating fabric only bonds the outer periphery of the heat generating fabric and the center portion is It provides a heat generating mat having durability, characterized in that it is configured in an unbonded state.

In addition, it provides a heat generating mat having durability, characterized in that the shielding layer, the insulating layer is sequentially stacked on the top of the heat generating fabric.

In addition, the exothermic fabric is a base layer formed of synthetic fibers, regenerated fibers or natural fibers; A conductive layer that can be freely formed by a predesigned electrical pattern on the base layer; A heat generating layer in which part or all of the conductive layer is in contact with the conductive layer in a line or a plane on the upper, lower or the same plane of the conductive layer; And an insulating layer formed on the conductive layer and the heat generating layer.

In addition, between the base layer and the conductive layer, a heat generating mat having durability, characterized in that the primer layer formed by selecting at least one of polyurethane-based resin, acrylic resin and silicone resin is further formed for the surface uniformity of the base layer. to provide.

In addition, the primer layer is provided with a water-repellent layer to provide a heat generating mat having durability, characterized in that formed.

In addition, the cushion unit provides a heat generating mat having durability, characterized in that formed by a compression pad or foam pad formed of one or more of polyester, polypropylene, polyurethane, cotton.

In addition, the shielding layer provides a heat generating mat having durability, characterized in that formed of any one of a silver foil fabric, a copper wire shielding fabric, a carbon nonwoven fabric.

In addition, the thermal insulation layer provides a heat generating mat having durability, characterized in that formed of a fabric consisting of any one or two or more of natural fibers, synthetic fibers, artificial fibers.

Durable heating mat of the present invention configured as described above has the effect of improving the durability by preventing the heating mat from damage to the built-in heat generating fabric by wrinkles or folding generated during use.

In addition, the wire harness for supplying power to the heat generating fabric is placed inside the cushion layer without using a heating wire in the heat generating fabric, thereby eliminating foreign substances in the heating mat caused by the heating wire or the wire harness, thereby increasing convenience of use. .

1 is a cross-sectional view showing a cross section of a durable heating mat according to the present invention.
Figure 2 is a view showing the attachment state of the heating element and the reinforcing layer of the durable heating mat according to the present invention.
3 is a view showing a reinforcing effect according to the reinforcing agent of the heating mat having durability according to the present invention.
4 to 6 are cross-sectional views showing various embodiments of a heat generating fabric according to the present invention.
7 is a plan view showing an embodiment of a heat generating layer and a conductive layer of a heat generating fabric according to the present invention.
8 is a view showing an embodiment of a durable heating mat according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially", and the like, are used at, or in close proximity to, numerical values when manufacturing and material tolerances inherent in the meanings indicated are intended to aid the understanding of the invention. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

1 is a cross-sectional view showing a cross section of a durable heating mat according to the present invention, Figure 2 is a view showing the attachment state of the heating element and the reinforcing layer of the durable heating mat according to the present invention, Figure 3 is a durability according to the present invention 4 to 6 are cross-sectional views showing various embodiments of a heat generating fabric according to the present invention, and FIG. 7 is a heat generating layer and a conductive layer of a heat generating fabric according to the present invention. 8 is a plan view showing one embodiment of, Figure 8 is a view showing an embodiment of a durable heating mat according to the present invention.

The present invention relates to a heat generating mat formed of a cushion portion 100 for forming a basic shape of a mat and a heat insulating function and an outer shell 100 constituting an outer appearance of the mat.

As shown in FIGS. 1 to 3, in the present invention, the reinforcement layer 250 and the heating fabric 200 are sequentially stacked on the upper portion of the cushion portion 100, and the reinforcement layer 250 has an outer circumference of the reinforcement layer 250 between the cushion portion 100 and the heating fabric 200. Only the adhesive portion is bonded to the center portion is not bonded to the center of the reinforcing layer 250 and the heating element 200 is bonded only to the outer periphery of the heating element 200 is composed of a state that does not adhere.

Only the outer periphery of the reinforcing layer 250 is bonded to the cushion unit between the cushion unit 100 and the heating element 200, and the center portion is not bonded, and only the outer periphery of the heating element 200 is bonded and the center portion is not bonded. As in the reinforcement layer 250 is formed in a smaller area than the heating element 200 is preferably the reinforcing layer 250 is bonded to the cushion portion 100 in the form of wrapping the heating element 200. That is, after only the outer periphery of the reinforcing layer 250 is bonded to the cushion unit 100, when the heating element 200 having a larger area than the reinforcing layer 250 is bonded in a form wrapped around the reinforcing layer 250 as shown in Figure 2 heating element 200 Only the outer periphery of the exothermic layer 200 and the outer periphery of the reinforcing layer 250 that do not overlap each other and the reinforcing layer 250 may be formed so that the central portion of the exothermic fabric 200 and the reinforcing layer 250 is not bonded.

When the reinforcing layer 250 is not present, the heating mat 200 is folded as shown in FIG. 3 (a), thereby damaging the heating fabric 200. However, as in the present invention, only the outer periphery of the reinforcing layer 250 is bonded between the cushion part 100 and the heat generating fabric 200 to the cushion portion, and the center portion is not bonded, but only the outer periphery of the heat generating fabric 200 is adhered to the center portion. In other words, when the heating mat is folded as shown in FIG. 3 (b), the heating fabric 200 is spaced apart from the heating mat to prevent the heating fabric 200 from being folded, thereby preventing the heating fabric 200 from being damaged.

The reinforcement layer 250 as described above may use a fabric or film such as a synthetic material, a fabric using a natural material, a knitted fabric, or a nonwoven fabric.

The outer shell 10 may provide an aesthetic element of the heating mat as an exterior portion in which the heating mat is embedded, and may be formed of various materials such as textile materials or leather materials according to the design concept or use of the heating mat.

The mall cushion part 100 constitutes the basic frame of the heating mat, and serves as a supporter of the heating element and the heat retaining function. Any cushioning material can be used, but the polyester can be used to increase durability and price competitiveness of the cushion part. It would be desirable to form a compressed cotton or foam pad formed from one or two or more of polypropylene, polyurethane, cotton.

The heat generating fabric 200 is a base layer 201 formed of synthetic fibers, regenerated fibers or natural fibers as shown in Figs. 4 to 6, a conductive layer 204 through which current flows on top of the base layer, and the top, bottom or the same plane of the conductive layer. The heat generating layer 203 is partially or entirely formed in contact with the conductive layer in a line or plane, and the insulating layer 205 formed on the conductive layer and the heating layer.

The base layer 201 is microscopically very uneven in its surface, and there are extremely many fine pores due to the gap between the fibers. Therefore, in order to ensure the uniformity of the surface and to form a heat generating layer and / or a conductive layer to be described later with a uniform thickness, and to prevent the material forming the heat generating layer or the like from penetrating the back of the base layer 201, Primer layer 202 may be formed. However, the primer layer may be selectively formed on the fabric and may be excluded according to the characteristics of the fabric.

The primer layer 202 may be one or more selected from the group consisting of polyurethane resins, acrylic resins, silicone resins, and the like.

Meanwhile, the primer layer 202 according to the present invention may be formed of a single layer made of the above material, and may be formed in a multilayer structure together with a water repellent layer (not shown). The water repellent layer may be performed by a general water repellent process, and may be made of a fluorine or silicon material as a non-limiting example. When the water repellent layer is formed, the heat generating layer and / or the conductive layer may be formed on the surface and / or the rear surface. In this case, the resin component constituting the heating layer and / or the conductive layer has an advantage of preventing the phenomenon of seeping into the fabric in the manufacturing process.

The heating layer 203 may be formed on the primer layer 202. The heating layer 203 may be formed by applying a conductive material or a mixture of a conductive material and a binder in a predesigned form. The conductive material may be polyaniline, polypyrrole, polythiophene, or the like as a polymer, and the conductive carbon black may be It may be mixed. It may also be selected from one or more of the group consisting of carbon, silver, gold, platinum, palladium, copper, aluminum, tin, iron and nickel.

4 illustrates an embodiment in which the conductive layer 204 is formed on the heating layer 203. The conductive layer 204 may be formed in a predetermined region on the upper or lower portion of the heating layer 203 formed in a predesigned form.

5 illustrates another embodiment in which the conductive layer 204 is formed on the same plane as the heating layer 203, and the conductive layer 204 may be formed in the same pattern as or different from the heating layer 203.

6 illustrates another embodiment in which the conductive layer 204 is formed under the heat generating layer 203.

The material constituting the conductive layer 204 may be a conductive polymer, a metal material such as carbon or silver, or a mixture of the material and a binder. Specifically, the conductive film is dispersed in a vehicle, and the cured film after printing is conductive. It refers to a material, which is commonly used for LCD electrode printing, touch screen printing, conduction pattern printing of circuit boards, contact portions and pattern portions printing of thin film switch plates, and electromagnetic shielding. The conductive filler is preferably silver based among conductive metals (silver, gold, platinum, palladium, copper, nickel, and the like).

The binder material of the conductive layer may be one or more selected from the group consisting of polyurethane resin, acrylic resin, silicone resin, melamine resin and epoxy resin.

On the other hand, the metal material and the binder is preferably mixed at a ratio of 90:10 to 80:20 (by weight), but the binder has a problem that the conduction function is lowered when the binder exceeds the above range and the adhesive force is lowered when the binder is below the above range. There is a disadvantage.

FIG. 7 illustrates an example in which a conductive layer and a heating layer are formed in a heat generating fabric. FIG. 7 illustrates an example in which a bent portion of a circuit pattern of the conductive layer 204 is formed in a relatively wider shape than a straight circuit. In FIG. 7, a circular shape is illustrated as the above shape, but the shape is not limited thereto, and if the shape is wider than the width of the linear circuit, other shapes such as a circle and an ellipse may be formed.

The thickness of the heat generating layer 203 and / or the conductive layer 204 is preferably 2 to 500 μm. If the thickness is less than the above range, it is difficult to ensure uniformity of the thickness of the conductive layer. This lowers the current value increases, and eventually there is a problem that the power consumption increases. In addition, the width of the conductive layer 204 is preferably about 10 to 20 mm. As the width of the conductive layer increases, the resistance value decreases, so that the current can be stably energized. There is a problem in coating properties.

In addition, it is preferable that the plurality of heating layers 203 be formed in an area of 4 to 8 cm 2. FIG. 7 illustrates an embodiment in which a plurality of heat generating layers 203 are in contact with a conductive layer 204. The heat generating fabric 200 formed as shown in FIG. 7 has an effect of suppressing overload.

An insulating layer 205 may be formed on the heating layer 203 and / or the conductive layer 204.

The insulating layer 205 is one or more selected from the group consisting of polyurethane resin, acrylic resin, silicone resin, polyester resin, PVC resin and polytetrafluoroethylene (PTFE) resin by coating, printing or laminating the insulating layer 205 Can be formed.

The insulating layer 205 prevents damages such as cracks in the conductive layer, imparts flexibility to the fabric, and performs waterproof or waterproof function.

As shown in FIG. 1, the shielding layer 210 and the insulating layer 230 are further added to the top of the heating fabric 200 for stability and functionality of the heating mat having the durability of the present invention in which the heating fabric 200 and the reinforcing layer 250 are formed as described above. something to do.

The shielding layer 210 formed on the top of the heating fabric 200 may be formed of a fabric having a conductive function such as silver foil fabric, copper wire shielding fabric, carbon nonwoven fabric, etc. as a layer for shielding and reducing the electromagnetic field generated from the heating fabric 200.

The thermal insulation layer 230 is a layer that preserves the heating temperature of the heat generating fabric and insulates the shielding layer and the outer skin, and may use a fabric composed of any one or two of natural fibers, synthetic fibers, and artificial fibers having heat resistance and insulation. .

The shielding layer 210 and the thermal insulation layer 230 may be formed only on the upper end of the heating element 200, or may be formed on the upper portion of the heating element 200 and the entire cushion portion.

The heat generating mat having durability according to the present invention configured as described above may be formed of one heat generating fabric, but for convenience of the user, as shown in FIG. And a wire harness 300 connected to the heating source and supplying power, and a control unit 400 connected to the wire harness to control heat generation of the at least two heating source 200.

The wire harness 300 may select and use a wire harness generally sold as a component that connects the control unit 400 and the heating element 200 to organically operate the heating element 200 through the control unit 400.

When the wire harness 300 is exposed to the surface of the cushion part 100, the user may feel a foreign object by the wire harness 300 when the heating mat is used. As shown in FIG. 1, a groove or a hole in which the wire harness 300 may be embedded in the cushion part 100 is shown. It will be preferable to form so that the wire harness 300 is located inside the cushion portion 100.

In addition, since the wire harness 300 may be spaced apart from the cushion part 100 and the connection between the heating element 200 and the wire harness 300 may be broken, the wire harness 300 may be fixed with a fabric, a nonwoven fabric, a film, or the like. The wire harness 300 may be attached to the cushion layer through fusion or the like.

The control unit 400 is formed of a connector 410 connected to the wire harness 300 and a controller 430 for controlling the operation of the heating element 200 to control the temperature of the heating element 200 and at least two heating element attached to the heating mat. It is a component that controls the operation state of the 200.

The control unit 400 is preferably formed so that at least two heat generating fabrics 200 formed in the cushion unit 100 can operate independently, it is possible to control the temperature of each source fabric by adjusting the intensity of the current.

The heating mat having durability according to the present invention in which two or more heating elements are formed as described above may be operated by the user to selectively operate the heating element attached to the heating mat by the control unit, or according to the heating zone according to the heating element of the heating mat. The temperature can be set, and when a current is supplied to the heating element to generate heat, the cushion part performs the heating element and various components to maintain the shape, block the cold or moisture at the bottom of the floor, and keep the heating temperature of the heating element.

<Description of Major Symbols in Drawing>
10: jacket 100: cushion layer
200: heat generating fabric 201: base layer
202: primer layer 203: heat generating layer
204: conductive layer 205: insulating layer
210: shielding layer 230: thermal insulation layer
250: reinforcing layer 300: wire harness
400: control unit

Claims (8)

In the heat generating mat formed of the outer cover constituting the appearance of the mat and the cushion portion to form the basic shape of the mat and perform the heat insulation function,
Reinforcement layer, the heating fabric is sequentially stacked on the cushion portion,
The reinforcing layer is bonded only to the outer periphery of the reinforcing layer between the cushion portion and the heat generating fabric and the center portion is not bonded, and the bonding of the reinforcing layer and the heat generating fabric only adheres to the outer periphery of the heat generating fabric. The central part is composed of non-bonded state,
And a reinforcing layer is formed to have a smaller area than the heat generating fabric so that the reinforcing layer is adhered to the cushioning portion in a form of being wrapped in the heat generating fabric. The method of claim 1,
A heating mat having durability, characterized in that the shielding layer, the insulating layer is sequentially stacked on the top of the heating fabric. The method of claim 1,
The heat generating fabric is a base layer formed of synthetic fibers, recycled fibers or natural fibers;
A conductive layer that can be freely formed by a predesigned electrical pattern on the base layer;
A heat generating layer in which part or all of the conductive layer is in contact with the conductive layer in a line or a plane on the upper, lower or the same plane of the conductive layer; And
Heat generating mat having a durability, characterized in that consisting of an insulating layer formed on top of the conductive layer and the heat generating layer. The method of claim 3,
And a primer layer formed between at least one of a polyurethane resin, an acrylic resin, and a silicone resin for the surface uniformity of the base layer between the base layer and the conductive layer. The method of claim 4, wherein
Heat generating mat having a durability, characterized in that the primer layer is formed in a multi-layer structure with a water repellent layer. The method of claim 1,
The cushion portion is a heat-generating mat having a durability, characterized in that formed of polyester, polypropylene, polyurethane, compressed cotton or foam pad formed of two or more of the cotton. The method of claim 2,
The shielding layer is a heat generating mat having durability, characterized in that formed of any one of a silver foil fabric, copper mesh shielding fabric, a carbon nonwoven fabric. The method of claim 2,
The insulating layer is a heat generating mat having durability, characterized in that formed of a fabric consisting of any one or two or more of natural fibers, synthetic fibers, artificial fibers.

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