JP2008014626A - Hot heat plate and manufacturing method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact hot heat plate favorable for human body and an environment, capable of heating partially a heating element panel, and usable semipermanently. <P>SOLUTION: This manufacturing method for the hot heat plate includes a metal plate working step for cutting a rustproof-treated metal plate into a square uniform size, for forming a large number of air holes, a terminal box and a terminal in the metal plate, and for forming the heating element panel by bending four sides of the metal plate, a coating step for coating a surface of the heating element panel to form a far-infrared ray radiation layer, a ceramic heating element wiring step for laying powder dust preventive nonwoven fabric inside the heating element panel, and for connecting in series a large number of ceramic heating elements in every several number thereof as a unit, a carbon kneading forming step for milling natural carbon into a particle form, and for forming loose carbon kneading by mixing water with a natural adhesive, a natural carbon layer forming step for molding a uniform thickness of natural carbon layer embedded with the large number of ceramic heating elements in the heating element panel, and a finishing material bonding step for bonding an under face finishing material on a bottom face of the heating element panel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heating plate and a method for manufacturing the same, and more specifically, a natural coal layer is molded in a heating element panel coated with a far infrared radiation layer, and a number of ceramic heating elements are embedded in series in the natural coal layer. It is related with the heating plate which used the natural charcoal (wood charcoal, white charcoal, activated carbon, etc., and the forward function of natural charcoal improves a human body) formed as a heat carrier, and its manufacturing method.

The general configuration of the electric heating plate (panel) is as shown in FIG. 1. The electric heating wire 2 is continuously arranged in a U shape on the heat insulating material 1, and a functional pad or the like is laminated thereon. The size of the heating plate is such that at least one of the horizontal and vertical plates exceeds 1 m, and the heating plate is manufactured to a size corresponding to a general plywood.
The reason is that if the heating plate is large, it is advantageous to keep the resistance value of the electric heating wire 2 provided inside the heating plate constant, and the selling price of the heating plate can be maintained according to the size. Because it can.

  In other words, in order to manufacture the heating plate in a small size and maintain a constant resistance value of the electric heating wire 2, the interval between the electric heating wires 2 continuously arranged in a U-shape is reduced, and electric heating is performed as much as possible. Since the wire 2 has to be wired for a long time, the manufacturing cost is relatively high compared to a large-sized hot plate despite being small. In addition, since there are many inefficient factors such as increasing the consumption of electricity, there are many restrictions and problems in manufacturing a small hot plate.

For example, in the case of an electric heating plate in which a functional material is laminated on the electric heating wire 2 and finished with a resin sheet, not only is it difficult to reduce the size, but in particular, a synthetic resin sheet used as an upper surface finishing member. Has a problem of adverse effects on the environment, and is known to cause a decrease in radiation efficiency of negative ions or far infrared rays useful for the human body emitted from functional materials.
In the case of a general ondol type bed, a heat wire is laid on a metal plate, the space is expanded and expanded with a urethane foaming agent, heat is collected in one place, and a stone bed or stone bollo with a basic structure on which stones are placed. (Rug).

However, most of the heat rays used in such an ondle type bed are nichrome wire heat generation, or those obtained by applying silicone particles thereon to improve the heat generation effect. There are problems such as bulkiness and hindrance to transportation.
On the other hand, recently, with the advent of semiconductor heating elements using semiconductor elements such as ceramics, research on small thermal plates using them has been actively conducted, and the applicant of the present application also has an assembly type thermal panel using ceramic heating elements. Was proposed in Korean Utility Model Registration No. 400461.

However, in the case of a heating hot plate using a semiconductor heating element that has been released to date, the heating element is mostly molded with urethane foam resin, and such products are heated. In addition, there are problems that are not friendly to the human body and the environment, such as the generation of odor due to high heat, particularly the release of substances harmful to the human body such as carcinogenic substances.
Korea Utility Model Registration No. 400461 Japanese Patent Application Laid-Open No. 07-233953

The present invention takes into consideration all the problems of the conventional simple laminated type electric heating plate (panel) and the heating heating plate in which the semiconductor heating elements are molded with foamed resin, and is friendly to the human body. A board is proposed.
An object of the present invention is to downsize a heating plate using a large number of ceramic heating elements connected in series, and to integrally mold the ceramic heating element to a natural coal layer (also called a charcoal panel) that is a functional material. With the forward function (far-infrared radiation, release of anion, antibacterial action, humidity control, airing, etc.) excellent in the environment of charcoal, the human body provides environmentally friendly heating, comfortable indoor living space and bed The purpose is to promote health.

Another object of the present invention is to provide a hot plate having a clean appearance and improved anion and far-infrared radiation efficiency useful for the human body.
Still another object of the present invention is to provide a hot plate that can be used semi-permanently without replacement of the heat transfer medium by using natural charcoal that maintains a forward function excellent in the environment as the heat transfer medium. is there.
Still another object of the present invention is to connect two or more ceramic heating elements embedded in a natural coal bed in series to form two sets of heating circuits and to connect the two sets of heating circuits in parallel to a power line. Thus, an object of the present invention is to provide a power-saving heating plate capable of partially heating the heating element panel.

  The present invention cuts a rust-proof metal plate into a square uniform size, and forms a large number of air holes (11), a terminal box (12), and a terminal (13) in the metal plate. A metal plate processing step (100) for bending the four sides of the metal plate to form a heating element panel (10), and a surface of the heating element panel (10) containing a radiation material that emits anions and far infrared rays A panel coating step (200) for forming a far-infrared radiation layer (50) by coating with a coating material, a non-woven fabric for dust prevention (22) is laid in the heating element panel (10), and a number of ceramic heating elements ( 20a) to 20f) are connected in series to form two sets of heating circuits C1 and C2, and the ceramic heating element wiring stage for connecting the two sets of heating circuits C1 and C2 in parallel to the power supply line (S) (300), heaven Charcoal powdered into particle form, mixed with water and natural adhesive to form a loose coal paste (400), heat generation with wiring of ceramic heating elements (20a) to (20f) The body panel (10) is filled with a prepared loose kneaded paste, and a high press pressure is applied thereto, and then a nonwoven fabric is pressed thereon to form a nonwoven fabric fiber layer (40) to be dried. (10) a natural coal layer forming step (500) for molding a natural coal layer (30) having a uniform thickness in which a large number of ceramic heating elements (20a) to (20f) are embedded, and a heating element panel (10) A finishing material adhering step (600) for adhering a bottom surface finishing material (60) to the bottom surface is included.

  When performing the charcoal forming step 400, pine powder is used as a natural adhesive, and when performing the natural coal layer forming step (500), the press pressure is 80 to 100 tons and the drying temperature is 50 to 50. When performing the ceramic heating element wiring step (300) at 80 ° C., the dust prevention nonwoven fabric (22) is omitted in the heating element panel (10), and a large number of ceramic heating elements (20a) to ( 20f) is wired.

  Further, the present invention is made of a metal plate subjected to rust prevention treatment, and a large number of air holes (11) are formed on the upper surface, and a terminal box (12) and a terminal (13) are formed on one side. The heating element panel (10), the far-infrared radiation layer (50) coated on the surface of the heating element panel (10), and molded into the heating element panel (10), a number of ceramic heating elements (20a) ) To (20f) including a natural coal layer (30) having a uniform thickness, and a bottom surface finishing material (60) attached to the bottom surface of the heating element panel (10). Features.

  An alumina heater (21) in which a moisture-proof sheet is attached as the lower surface finishing material (60), and the ceramic heating elements (20a) to (20f) embedded in the natural coal layer (30) are covered with a protective cover (23). ).

  The far-infrared radiation layer (50) formed on the surface of the heating element panel (10) is one radiation material of ceramics or germanium, and the ceramic heating elements (20a) to (20f) are buried. The formed natural coal layer (30) is formed into a solid state by sticking between charcoal particles with a natural adhesive.

  The ceramic heating elements (20a) to (20f) embedded in the natural coal layer (30) constitute two sets of heating circuits C1 and C2 connected in series, and the two sets of heating circuits C1 and C2 are power lines. S is connected in parallel.

  An on / off switch connected to the two sets of heat generation circuits C1 and C2 is provided separately, and partial heating of the heating element panel (10) is performed by the operation of the on / off switch.

  An upper surface finishing material (70) is closely attached to the upper surface of the heating element panel (10), and a wood-laying plate (80) in the form of a window door is additionally installed on the upper surface finishing material (70). 10) It is characterized in that a non-woven fabric (22) is provided in contact with the vent hole (11) in order to prevent scattering of charcoal dust through the vent hole (11).

The heating plate of the present invention is a small and square heating element panel, so that the assembly and construction of the heating plate is easy and separation is easy, so replacement and re-installation are easy, and low price and high addition Has the effect of providing value.
Further, the heating plate of the present invention uses ceramic heating elements 20a to 20f, and the ceramic heating elements 20a to 20f are embedded in the natural coal layer 30 which is a functional substance and molded wiring, so that the heating environment is excellent in order of the environment of charcoal. To provide environmentally friendly heating with functions (far-infrared radiation, anion release, antibacterial action, humidity control, air purification, suppression of electromagnetic wave generation, etc.), and a comfortable indoor living space and bed It is possible to improve the health of the human body.

Furthermore, the heating plate of the present invention includes two heating circuits C1 and C2 connected in series by embedding ceramic heating elements 20a to 20f incorporating an alumina heater 21 in a natural coal layer 30 and molding wiring. By adopting a wiring structure that is connected in parallel to the power supply line S, a power-saving heating plate that can partially heat the heating element panel 10 can be provided.
In addition, the hot plate of the present invention has an excellent appearance due to the far-infrared radiation layer 50 coated on the surface of the heating element panel 10, and has the effect of further improving the anion and far-infrared radiation efficiency.
In particular, in the present invention, the effect of two birds with one stone, which doubles the life of the hot plate, can be obtained by using natural charcoal, which has a semipermanently maintained normal function as an environment, as a heat medium.

  Hereinafter, the manufacturing method of a heating plate of the present invention and the structure and operation of the heating plate will be described in detail with reference to the accompanying exemplary drawings.

  FIG. 2 is a perspective view showing the outer shape of the heating plate of the present invention, and FIG. 3 is a partial sectional view of the heating plate of the present invention showing the wiring configuration of the ceramic heating element embedded in the natural coal layer. It is. FIG. 4 shows the structure of the ceramic heating element, and FIG. 5 is a longitudinal sectional view of the whole heating plate of the present invention, showing a part of the side section in an enlarged manner. 6 (a) to 6 (c) are separated perspective views showing the components separated so that the configuration of the present invention can be easily understood, and FIGS. 7 (a) to 7 (d) are diagrams illustrating the use of the present invention. The state is illustrated, and FIG. 8 is a manufacturing process diagram showing a process of manufacturing the hot plate of the present invention.

Next, the manufacturing process of the heating plate of the present invention will be described with reference to the manufacturing process diagram of FIG.
<Metal plate processing stage 100>
The metal plate processing step 100 is a process of making the heating element panel 10. First, when cutting and bending a rust-proof metal plate into a uniform square, the corners of the metal plate have a certain length of right and diagonal lines so that the cross section of the four sides of the metal plate is U-shaped. Chamfer. Next, a number of ventilation holes (11; holes through which carbon anions, far-infrared radiation and air circulate) are drilled in the same metal plate, and terminals for storing electric wires and terminals on one side thereof Two terminals 13 are formed on each of the two boxes 12 and on both side surfaces of each terminal box 12.
The four sides of the processed metal plate are continuously bent twice at right angles to form a heating element panel 10 having a U-shaped cross section.

<Heating element panel surface coating stage 200>
The far-infrared radiation layer 50 is formed by coating the surface (upper surface and side surface) of the heating element panel 10 with a paint containing a radiation material that emits anions and far-infrared rays. Ceramics and germanium are effective as a material for forming the far infrared radiation layer 50.
Instead of coating the far-infrared radiation layer 50 on the surface of the heating element panel 10, a far-infrared radiation sheet can be attached as the top finishing material 70 that emits far-infrared rays and anions. Holes corresponding to the vent holes 11 must be formed in the far infrared radiation sheet.

<Ceramic heating element wiring stage 300>
A non-woven fabric 22 for dust prevention is laid in the heating element panel 10, and a large number of ceramic heating elements 20a to 20f constituted by the alumina heater 21 are wired using electric wires. At that time, it is necessary to accurately calculate the resistance (Ω) values of the ceramic heating elements 20a to 20f to design the wiring, and each ceramic heating element 20a to 20f has a protective cover 23 for safety. It is preferable to cover and protect with. The ceramic heating elements 20a to 20f are connected in series several times to form two sets of heating circuits C1 and C2. The two sets of heat generation circuits C1 and C2 are connected to the power line S in parallel.

<Charcoal kneading formation stage 400>
Apart from the heating element panel 10 and the wiring design, a loose charcoal kneading is formed using natural charcoal that provides a forward function that is excellent in the environment. Natural charcoal such as kunugi charcoal and pine charcoal is crushed somewhat roughly into particles. Next, an appropriate amount of water and a natural adhesive are mixed and gradually mixed with a stirrer to form a loose state of kneading. The degree of kneading at that time is such that when it is poured into the heating element panel 10, it does not damage the electrical wiring of the ceramic heating elements 20a to 20f, and soaks well, and is slightly loosened. The mixing ratio of natural charcoal, water, and natural adhesive is preferably about 60 to 70:25 to 35: 5 to 10 by weight percent.

<Natural coal layer forming stage 500>
The prepared heating element panel 10 of the ceramic heating elements 20a to 20f is slowly filled with the prepared loosely kneaded coal so that the corners and deeper portions of the heating element panel 10 are completely filled.
Next, the density of the charcoal filled with high press pressure is increased. The press pressure is preferably 80 to 100 tons in order to obtain a high quality natural coal layer 30.
And in order to improve a cushion function and a heat insulation function, the natural nonwoven fabric (with no discharge | emission of toxic gas when baked) is pressed against the natural charcoal layer 30, and the nonwoven fabric fiber layer 40 is formed. Next, it is sufficiently dried at a constant temperature of 50 to 80 ° C. so that the moisture contained in the charcoal paste is almost disappeared.
As a result of the above processing, a natural coal layer 30 having a uniform thickness in which a large number of ceramic heating elements 20a to 20f are embedded in the heating element panel 10 is formed (molded), and the natural coal layer 30 is formed of the ceramic heating elements 20a to 20f. It plays the role of a heat medium that conducts heat and stores heat.

<Finishing material sticking stage 600>
This is a step of attaching a finishing material 60 such as moisture-proof paper or moisture-proof sheet that provides various patterns and moisture-proof function to the natural coal layer 30 to which the nonwoven fabric fiber layer 40 is pressed. Since finishing materials on which various patterns are printed can be used, the appearance of the lower surface of the heating element panel 10 can be made more beautiful, and the effect of preventing direct moisture penetration into the natural coal layer 30 can be obtained.
As the lower surface finishing material 60, moisture-proof paper or moisture-proof sheet is desirable, and plate materials with a moisture-proof function can also be used.
In the charcoal kneading formation step 400, a natural adhesive such as a low-priced pine or powder having high sticking power and a pine fragrance can be used as the natural adhesive.

Next, the structure of the heating plate of the present invention completed by the above manufacturing method will be described.
As shown in FIGS. 3 and 5, a heating element panel 10 having a surface coated with a far-infrared radiation layer 50 is provided as a member constituting the outside of the heating plate. In the heating element panel 10, a dust preventing nonwoven fabric 22 for blocking the scattering of charcoal dust is selectively laid in contact with the air holes 11, and the natural coal layer 30 is formed to have a uniform thickness.
A large number of ceramic heating elements 20 a to 20 f are embedded in the natural coal layer 30. A non-woven fiber layer 40 made of a natural non-woven fabric having a uniform thickness is pressed against the natural charcoal layer 30, and a bottom surface finishing material 60 such as a moisture-proof sheet is attached to the natural charcoal layer 30 pressed with the non-woven fiber layer 40. A rose hot plate is constructed.

The heating element panel 10 is configured so that the four sides of a rust-proof metal plate are subjected to primary / secondary bending to form a U-shaped cross section on the side surface, and a large number of air holes 11 are formed on the upper surface. It has been drilled. Two terminal boxes 12 each having a terminal box cover (14) are formed on one side of the upper surface thereof, and communicated with adjacent terminal boxes 12 on both sides of each side of each terminal box 12 during assembly. Two terminals 13 are formed each.
It is preferable that the heating element panel 10 be a galibarium steel plate in which aluminum and zinc are mixed and plated so as to have corrosion resistance, heat resistance, and a beautiful appearance.

The natural coal layer 30 molded on the heating element panel 10 is molded in direct contact with a large number of air holes 11 drilled in the upper surface of the heating element panel 10, or in contact with the nonwoven fabric 22 on the uniform surface. Molded to thickness.
A large number of ceramic heating elements 20a to 20f that generate a heat of 60 to 75 ° C. are embedded in the molded natural coal layer 30, but several ceramic heating elements 20a to 20f are connected in series to form two sets of heat generation. The circuits C1 and C2 are configured, and the two sets of heat generation circuits C1 and C2 are connected to the power supply line S in parallel.
The heating circuit C1 includes three ceramic heating elements 20a, 20b, and 20c connected in series with each other, and the other set of heating circuits C2 includes three ceramic heating elements 20d connected in series with each other. , 20e, 20f.

In this way, the heat generating circuits C1 and C2 composed of two sets are separately connected to an ON / OFF switch so that only one set can be driven. Only one of the heat generation circuits C2 can be driven, and the design can be made such that partial heating of the heating plate is possible.
Each of the ceramic heating elements 20a to 20f can obtain an energy saving effect that saves electricity by 50% compared to the current ondol system by applying a series connection method by calculating an accurate resistance value.
A large number of ceramic heating elements 20a to 20f molded and wired to the natural coal layer 30 are firmly protected by the molded natural coal layer 30 and are safely protected from external force (impact).

In particular, since the ceramic heating elements 20 a to 20 f have an integral structure embedded in the natural coal layer 30, the thermal efficiency of the ceramic heating elements 20 a to 20 f is greatly improved and the heat storage action by the natural coal layer 30 causes the ceramic heating elements 20 a to 20 f. Since power consumption accompanying heat generation of 20f can be minimized, it is possible to improve economy.
As an alternative to the natural coal layer 30 that is a functional material, ocher powder can be used.
The nonwoven fabric fiber layer 40 pressed against the natural coal layer 30 is made of a non-polluting nonwoven fabric that provides heat insulation and cushioning and has a uniform thickness. The role of this non-woven fiber layer 40 is to minimize heat loss and to mitigate or absorb the impact transmitted from the outside.

The natural charcoal layer 30 on which the nonwoven fabric layer 40 is pressed uses moisture-proof paper, moisture-proof sheets, or a plate having a moisture-proof function, on which various patterns are printed, as the bottom surface finishing material 60, so that the bottom surface appearance of the heating element panel 10 is clean. And block moisture penetration.
If the environment is not easily affected by moisture, the bottom finish 60 can be omitted as necessary.
As the material forming the far-infrared radiation layer 50 formed on the surface of the heating element panel 10, a ceramic or germanium series material having high anion and far-infrared emissivity is preferable during heating, and by using these, The anion and far infrared radiation efficiency can be increased, and the appearance of the hot plate can be improved.

  In some cases, as shown in FIG. 6 c, a functional fiber material that emits far-infrared rays and anions can be used in close contact with the upper surface of the heating element panel 10 as the upper surface finishing material 70. Its role is to radiate far-infrared rays and anions during heating, and to prevent double scattering of the charcoal powder particles forming the natural coal layer 30 through the vent holes 11 of the heating element panel 10. As shown in FIG. 6b, in the case of additionally constructing the wood laying board 80 on the constructed heating element panel 10 or the like, it also has an auxiliary role to make the wood laying board 80 stably adhere.

The wood laying plate 80 is radiated from the natural coal layer 30 and the far-infrared radiation layer 50 together with heat through a gap between the pieces by forming a window door form so that a large number of pieces intersect each other. Far-infrared rays and anions, which are beneficial to the human body, are released as they are, and in summer the air circulation is provided to provide a resting place, along with an appearance that makes you feel the traditional beauty of Korea.
Here, it is preferable to use an incense wood for the wood laying board 80 so that the scent of natural wood can be felt.

It is desirable to incorporate an alumina heater 21 having high thermal efficiency and stable electrical resistance into the ceramic heating elements 20a to 20f, and these are protected by a heater protective cover 23 having excellent thermal conductivity.
A temperature sensor (not shown) for sensing the heat generation temperature of the ceramic heating elements 20a to 20f can be additionally installed in the natural coal bed 30. The natural coal layer 30 maintains a solid molded shape by solidifying carbon particles and the like with a natural adhesive such as pine or powder.

The heating element panel 10 has a regular quadrilateral shape so that the assembling work can be easily performed, and can be manufactured in a ½ size rectangular shape for finishing assembling work. It is desirable that the size is limited to a range of 19 to 38 cm in width and length so that handling, replacement and transportation are convenient, and unit price is low.
As shown in FIGS. 7a to 7d, the heating plate construction of the present invention having such a configuration is assembled by a joining method in which each heating element panel 10 is abutted and joined together like a grid, a heating bed, a heating bowl, Installation and installation will be done for indoor floor heating and indoor wall heating.

  A terminal box 12 for storing electric wires and terminals is provided on one side of the upper surface of each heating element panel 10, and a terminal 13 communicating with the terminal box 12 is provided on both sides of the side part. At the time of construction, when electrically connecting each heating element panel 10, the terminal box cover 14 covering the terminal box 12 is opened, and the power supply terminals accommodated in the terminal box 12 are connected via the terminals 13. The power supply terminals in the terminal box 13 are connected to each other via the terminals 13 of the adjacent heating element panels 10.

  When electricity is supplied from the power supply line S of each panel 10, two sets of heat generating circuits C1 and C2 wired to the respective heating element panels 10 and the like are driven, and a large number of the heat generating circuits C1 and C2 constituting each set are formed. The individual ceramic heating elements 20a to 20f emit high heat. Then, the natural coal layer 30 that integrally covers them receives heat and emits heat, and heat is dissipated in the entire area of the upper surface of the large number of assembled heat generating panels 10. Thereby, heating of a certain indoor area, such as heating through a bed, heating through Bologo, heating through an indoor floor or heating through an indoor wall, is realized.

  At this time, a large amount of anions and far-infrared rays useful for the human body are released together with the heat through the air holes 11 formed in the upper surface of each heating element panel 10 to perform a forward function excellent in the environment. In other words, when electricity is supplied to the heating plate of the present invention, a large number of ceramic heating elements 20a to 20f embedded in the natural coal layer 30 of the heating element panel 10 radiate heat and conduct heat by the heat. The natural coal layer 30 serving as a heat medium is heated hot, and warm heat is dissipated through the upper surface of the heating element panel 10. A large amount of anions and far infrared rays useful for the human body released from the natural coal layer 30 together with the heat are radiated to the outside (indoors) through a large number of ventilation holes 11 formed in the heating element panel 10. Thus, anions and far infrared rays are also emitted through the far infrared radiation layer 50 coated on the surface of the heating element panel 10.

The natural forward function of natural charcoal suppresses the generation of electromagnetic waves, while absorbing and extinguishing electromagnetic waves generated around the heating plate or from various electric and electronic devices, stabilizes human mentality, purifies blood, etc. A comfortable indoor living space and bed can be provided by the indoor air purification action through humidity control and antibacterial action.
In the present invention, the ceramic heating elements 20a to 20f are composed of two sets of heating circuits C1 and C2 and are connected in parallel to the power line S when the ceramic heating elements 20a to 20f are embedded in the natural coal layer 30. This is the structure. Therefore, during use, even if the ceramic heating elements constituting one set (eg, C2) of the heat generating circuit are disconnected and no electricity flows, the power continues to the other set (eg; C1) of the heat generating circuit. Therefore, the heating element panel 10 can dissipate heat even partially, and smooth heating is performed.

Even when any one of the on / off switches (not shown) of the two heat generating circuits C1 and C2 is turned off, power is supplied to the other heat generating circuits so that the panel 10 It becomes possible to perform partial temperature heating, and as a result, the temperature of the heating can be adjusted.
As another embodiment of the present invention, in a hot plate structure, a ceramic heating element may be omitted, and only a natural coal layer may be compression-molded to form a charcoal panel used on another electric heating means (eg, electric ondle). It will be possible.

The hot plate according to the present invention has the following characteristics.
It is easy to adjust the distance between the ceramic heating elements 20a to 20f, and the partial heating of the heating element panel 10 is possible, so that a power-saving heating plate can be provided.
By providing the non-woven fabric 22 for preventing dust in the heating element panel 10, it is possible to prevent the carbon dust from being scattered through the vent hole 11 in advance.
By providing the natural coal bed 30 with a temperature sensor (not shown), an overheat safety accident can be prevented.
The material of the far-infrared radiation layer 50 formed on the surface of the heating element panel 10 is preferably a radiation material such as ceramics or germanium. During heating, the anion and far-infrared radiation efficiency is increased and the appearance is improved. Can be improved.

It is an example figure which shows the structure of the conventional electric heating board of a plywood size. It is the perspective view which showed the external shape of the thermal plate of this invention. It is a fragmentary sectional view of the heating plate which shows the wiring structure of the ceramic heating element embedded in the natural coal layer in this invention. It is a block diagram of the ceramic heating element of this invention. It is a longitudinal cross-sectional view of the whole thermal plate of this invention, Comprising: It is a cross-sectional illustration figure which expanded a part of side cross section. (A) is the isolation | separation perspective view of the thermal plate which isolate | separated and showed each component for easy understanding of the structure of this invention. (B) is another embodiment in which each component is shown separately so that the configuration of the present invention can be easily understood. (C) is another embodiment in which each component is shown separately so that the configuration of the present invention can be easily understood. It is the illustration showing the use condition of this invention, Comprising: (a) is a figure which shows the example applied to the bed. (B) is a figure which shows the example applied to Boryo (rug). (C) is a figure which shows the example applied to indoor floor heating. (D) is a figure which shows the example applied to indoor wall heating. It is a manufacturing-process figure of this invention.

Explanation of symbols

10 ... Heating element panel
11 ... Vent 12 ... Terminal box
DESCRIPTION OF SYMBOLS 13 ... Terminal 14 ... Terminal box cover 20a-20f ... Ceramics heating element 21 ... Alumina heater 22 ... Nonwoven fabric 23 ... Heater protection cover C1, C2 ... Heat generation circuit
S: Power line
30 ... Natural charcoal layer 40 ... Non-woven fiber layer 50 ... Far-infrared radiation layer 60 ... Lower surface finishing material 70 ... Upper surface finishing material
80 ... Wood laying board 100 ... Metal plate processing stage 200 ... Heating element panel surface coating stage
300 ... Ceramic heating element wiring stage 400 ... Charcoal kneading formation stage
500 ... Natural coal layer forming stage 600 ... Finishing material sticking stage

Claims (13)

A metal plate subjected to rust prevention treatment is cut into a square uniform size, and a large number of air holes (11), a terminal box (12), and a terminal (13) are formed in the metal plate, and the metal plate A metal plate processing stage (100) for forming a heating element panel (10) by bending four sides of
A panel coating step (200) for coating the surface of the heating element panel (10) with a paint containing a radiation material that emits anions and far infrared rays to form a far infrared radiation layer (50);
A non-woven fabric for preventing dust (22) is laid in the heating element panel (10), and several ceramic heating elements (20a) to (20f) are connected in series to form two sets of heating circuits C1 and C2. , A ceramic heating element wiring stage (300) for connecting the two sets of heating circuits C1 and C2 in parallel to the power line (S),
A charcoal kneading step (400) in which natural charcoal is pulverized to form particles and water and a natural adhesive are mixed to form a loose charcoal kneading (400),
After the prepared heating element panel (10) of the ceramic heating elements (20a) to (20f) is filled with a loosely prepared carbon paste and a high pressure is applied, the nonwoven fabric is pressed onto the nonwoven fabric. A natural layer in which a fiber layer (40) is formed and dried, and a natural carbon layer (30) having a uniform thickness in which a large number of ceramic heating elements (20a) to (20f) are embedded in a heating element panel (10) is molded. A coal layer forming step (500), and a finishing material adhering step (600) for adhering the bottom surface finishing material (60) to the bottom surface of the heating element panel (10),
The manufacturing method of the thermal plate characterized by including.   The method for manufacturing a hot plate according to claim 1, wherein when performing the charcoal forming step 400, pine powder is used as a natural adhesive.   The method of manufacturing a hot plate according to claim 1, wherein when the natural coal layer forming step (500) is performed, the press pressure is 80 to 100 tons and the drying temperature is 50 to 80 ° C.   When performing the ceramic heating element wiring step (300), the dust prevention nonwoven fabric (22) is omitted in the heating element panel (10), and a large number of ceramic heating elements (20a) to (20f) are wired. The manufacturing method of the thermal plate of Claim 1 characterized by the above-mentioned. A heating element panel (10) made of a rust-proof metal plate, with a number of air holes (11) drilled on the upper surface and a terminal box (12) and terminals (13) formed on one side. ),
A far-infrared radiation layer (50) coated on the surface of the heating element panel (10);
A natural coal layer (30) having a uniform thickness molded in the heating element panel (10) and embedded with a large number of ceramic heating elements (20a) to (20f), and
A bottom finishing material (60) adhered to the bottom surface of the heating element panel (10),
A heating plate characterized by comprising.   The hot plate according to claim 5, wherein a moisture-proof sheet is attached as the lower surface finishing material (60).   The heating element according to claim 5, wherein the ceramic heating elements (20a) to (20f) embedded in the natural coal layer (30) are alumina heaters (21) covered with a protective cover (23). Board.   The heating plate according to claim 5, wherein the far-infrared radiation layer (50) formed on the surface of the heating element panel (10) is one radiation material of ceramics or germanium.   The said natural coal layer (30) in which the said ceramic heating element (20a)-(20f) was embedded is shape | molded by solid form by the adhesion | attachment between the carbon particles by a natural adhesive. Heating plate.   The ceramic heating elements (20a) to (20f) embedded in the natural coal layer (30) constitute two sets of heating circuits C1 and C2 connected in series, and the two sets of heating circuits C1 and C2 are power lines. The heating plate according to claim 5, wherein the heating plate is connected to S in parallel.   The on-off switch connected to the two sets of heating circuits C1, C2 is separately provided, and the partial heating of the heating element panel (10) is performed by the operation of the on-off switch. The heating plate described in 1.   An upper surface finishing material (70) is adhered to the upper surface of the heating element panel (10), and a window sill-like wood laying plate (80) is additionally installed on the upper surface finishing material (70). Item 6. The heating plate according to Item 5.   The said heating element panel (10) is equipped with a nonwoven fabric (22) in contact with a vent hole (11) in order to prevent scattering of charcoal dust through the vent hole (11). The described heating plate.

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