KR20140102557A - Table with Self-Regulation Plane Multi Heating element - Google Patents

Abstract

The present invention relates to a table using a multi-temperature self-regulation plane-type heating element having a heating element prepared with a paste-shaped self-regulation (SR) heating element directly coated onto a reinforced glass. The present invention includes a main body panel; a main body panel support instrument for supporting the main body panel to sustain a predetermined height; SR heating element formation zones which are formed separately from the main body panel to form SR heating elements directly coated onto the bottom surface of the reinforced glass substrate; and a controller for controlling the operation of the SR heating elements formed on the SR heating element formation zones. On the SR heating element formation zones, a plurality of SR heating elements are separately formed, while having different heating temperature ranges in accordance with respective composition ratios when applied with electric currents.

Description

{Table with Self-Regulation Plane Multi Heating Element}

The present invention relates to a dining table having a heat generating means, and more particularly to a dining table using a multi-temperature self-regulating type surface heating element having a heating means formed by coating a tempered glass directly with an SR (Self Regulation) heating element in the form of a paste.

Generally, a dining table allows food to be eaten in a home or a restaurant. When the food is cooked on the table at a high speed, a portable gas range or a stove is used as a heating device.

However, the heating devices are inconvenient to manage and require considerable effort to maintain cleanliness.

If there is a temperature range in which the food does not maintain the best food taste according to the cooked food rather than the instant cooking at the table, there is a problem that the food must be heated again and set on the table again.

Although a table having a hot plate as one of functional tables has been developed, it has not been mass-produced due to the difficulties of manufacturing the table and the temperature control.

In order to solve such a problem, there is a need for development of a new heating element, and a typical heating element attracting attention is an area heating element.

Due to the depletion of energy resources, countries around the world are investing heavily in energy conservation. In line with this trend, surface heating elements, which have recently been emphasized, are 20 ~ 40% less electric power than general electric heating elements, and it is expected that electric energy saving and economic ripple effects will be great.

Generally, the surface heating element utilizes the radiant heat generated by the electric power supply, and it is easy to control the temperature, does not pollute the air, has advantages in hygiene and noise, and has been used in bedding such as heating mat and pad. In addition, it is widely used in various industrial heating apparatuses such as floor heating, office and workplace heating of industrial house, painting drying, etc., plastic house, agricultural facility, automobile gray mulcher, freezing prevention of parking lot, leisure equipment for leisure, .

Especially, the surface heating element has been used recently to replace a lot of housing heating in Europe, and it is being exported not only to the domestic but also to the domestic market as new materials that can be applied to industrial dryer, agricultural product drier, It is evaluated as a product that can be focused on.

Generally, the surface heat generating element is mainly composed of a metal heating element obtained by etching a metal thin plate such as iron, nickel, chromium, or platinum, and a non-metallic heating element such as silicon carbide, zirconia or carbon. However, they have been pointed out that the heat and durability are weak and difficult to manufacture.

Multilayer heating elements in the form of layered products having conductive layers, both of which are insulated with insulating layers, are well known. It also has a heat reflecting layer of metal or metal polymer film on one side of the surface of the heating element. It is known that the conducting layer is fabricated on the basis of coal-fiber paper and the insulating layers are made of thermoplastic polymer film material.

Also, a method for producing a polymeric electrothermal heat is also well known. In the manufacturing process, a conductive layer made of carbon, graphite, modified phenol formaldehyde resin is coated to form a resistance element in such a manner that the insulating substrate is impregnated with an insulating material. A layer of the epoxy or epoxy phenol or phenol formaldehyde binder is applied over it to form an insulating coating and all layers are pressed at the appropriate temperature, time and pressure.

The resistive element is then separated with similar resistive elements prior to the resist coating thereon and separated in a separate form at 130-140 DEG C Heat treatment (curing) is performed for 10-12 minutes per 1 mm of lamination thickness.

However, the conventional surface heating element is not easy to accurately control the temperature, and the process is complicated because it is a process of applying an insulator on a metal substrate and coating a heating element.

Therefore, among the surface heating elements, it is required not only to apply a specific power, but also to make it easy to control a specific temperature range while improving the efficiency of power use.

Particularly, in the case of the conventional SR heating element, since the process is complicated by applying the insulator on the metal substrate and coating the SR heating element, and since the heating temperature is controlled by the timer method using the bimetal or the electronic switch, Is difficult.

Therefore, in the case of such a SR heating element, it is difficult to apply the heating element to the table.

In order to solve the problem of the heating means and the table of the related art, the present invention provides a multi-temperature self-regulating type surface heating element having a heating means formed by coating a tempered glass with an SR (Self Regulation) The purpose is to provide a used table.

The present invention can uniformly maintain the temperature by applying an SR (Self-Regulation) heating element capable of accurately controlling the temperature in a specific temperature range and capable of self-controlling power and temperature over time, The present invention provides a table using a multi-temperature self-regulating surface heating element.

The present invention relates to an SR (Self Regulation) heating element which is separated by a heating temperature and directly coated on a tempered glass to constitute a heating means so that temperature control is efficiently performed, and an SR (Self Regulation) heating element The present invention has been made to provide a table using a self-regulating multi-temperature self-regulating heating element.

The present invention relates to a method and apparatus for selecting a self-regulating (SR) heating element having different heating temperature ranges according to a heating object, applying a power source, and changing a size of an applied power source, The purpose is to provide.

In the present invention, a specific material is coated on the back surface of the tempered glass by a mesh structure so that the heat release characteristics of the coating region and the region other than the coating are different from each other, so that only the SR heating element region coated on the entire surface of the tempered glass maintains the heat generation temperature, The object of the present invention is to provide a table using a multi-temperature self-regulating surface heating element which prevents heat from being transferred.

The present invention provides a table using a multi-temperature, self-regulating type surface heating element which has a sensor for sensing whether or not a container exists in a heating position of a table, and automatically selects and drives SR heating elements according to a table top It has its purpose.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided a cooking apparatus including a main body panel, a main body panel supporting means for supporting the main body panel to maintain a predetermined height, And a controller for controlling the driving of the SR heating elements formed in the SR heating element formation areas, wherein the SR heating element formation areas are formed in the SR heating element formation area, And a plurality of SR heating elements having different heating temperature ranges are formed according to respective composition ratios.

Here, the plurality of SR heating elements having different heating temperature ranges are respectively formed in the form of a paste and directly coated on the surface of the tempered glass substrate, and the respective SR heating elements are separated from each other, Is applied.

The shape of the region where the plurality of SR heating elements having different heating temperature ranges are selected from the shapes including the circle, the triangle, the square, the pentagon, the hexagon, the diamond, and the star, and the coating method of the SR heating elements are spaced apart from each other A separate spiral shape, a jig jig shape, or a modification or combination thereof.

And a back side mesh coating layer which is formed on the rear surface of the reinforced glass substrate on which a plurality of SR heating elements having different heating temperature ranges are coated, The heating temperature is maintained only in the area of the SR heating element coated on the front surface and heat is not transferred to the other area.

The surface heating element compositions constituting a plurality of SR heating elements having different heating temperature ranges include 5 to 16% by weight of an insulating binder component, 50 to 75% by weight of a resistance component and 10 to 40% by weight of a temperature control component, And the heat is generated at 300 to 700 ° C.

The controller controls the plurality of SR heating elements having different heating temperature ranges to be selectively driven by applying a constant voltage without changing the voltage level in order to drive the SR heating elements.

The entire area of the area where the SR heating elements are coated is divided into a first area inside and a second area outside, and the first and second SR heating elements are spirally separated from each other to coat the first area and the second area, The third and fourth SR heating elements are spirally separated from each other and coated, and power is selectively applied to the power supply terminals of the first, second, third and fourth SR heating elements to drive by varying the heating temperature range and the heating region size .

The composition ratios of the surface heating elements composing the first, second, third and fourth SR heating elements may be different from each other, or the composition ratios of the first and third SR heating elements and the second and fourth SR heating elements may be different.

Further, the tempered glass to which the SR heating elements are directly coated forms the upper surface of the main panel, or the plate of the other material is further provided on the tempered glass on which the SR heating elements are directly coated.

And a container detecting means for detecting a food container placed on the SR heating element of the main body panel, wherein the controller drives the SR heating element automatically in accordance with the detection result of the container detecting means.

And a plurality of the container detecting means are provided in one corresponding SR heating element formation region.

The container used for the table includes an RFID chip and an RFID reader capable of sensing a signal of the RFID chip is provided on the table so that the material, size and shape of the container placed on the table, the type of food contained in the container, The controller automatically detects an appropriate temperature and automatically controls the heat generation position, the heat generation range, and the heat generation temperature in the controller.

The table using the multi-temperature self-regulating type surface heating element according to the present invention has the following effects.

First, SR (Self Regulation) heating element in the form of a paste is directly coated on the tempered glass to constitute a heating means of the table, thereby enhancing the stability of the temperature control.

Second, SR (Self-Regulation) heating element which can control the temperature accurately at specific temperature range and self-control of power and temperature over time can be applied to maintain food temperature uniformly.

Third, the SR (Self Regulation) heating element of paste type is separated according to the heating temperature and directly coated on the tempered glass to constitute the heating means of the table, and the SR (Self Regulation) heating element can be selected according to the heating object to effectively maintain the temperature of the food .

Fourth, a certain material is coated on the back surface of the tempered glass of the heating means constituting the dining table, so that the heating temperature is maintained only in the area of the SR heating element coated on the entire surface of the tempered glass, .

Fifth, a sensor for sensing whether or not a container is present at the heat generating position of the table is provided, and the SR heating elements are automatically selected and driven according to the appearance of the table to enhance the convenience.

1 to 3 are diagrams showing a configuration of a multi-temperature self-regulating type surface heat emission element applied to a dining table according to the present invention
4A and 4B are voltage waveforms for driving the heat generating means formed on the table
FIG. 5 is a diagram illustrating a configuration of a table using a multi-temperature self-regulating surface heating element according to the present invention
6 is a cross-sectional view showing a structure of a container detection sensor on a table using a multi-temperature self-regulating surface heating element according to the present invention

Hereinafter, a preferred embodiment of a table using the multi-temperature self-regulating type surface heating element according to the present invention will be described in detail as follows.

The characteristics and advantages of the table using the multi-temperature self-regulating surface heating element according to the present invention will be apparent from the following detailed description of each embodiment.

Figs. 1 to 3 are views showing a configuration of a multi-temperature self-regulating type surface heating element applied to a dining table according to the present invention.

In the present invention, the food of the table can be maintained at a temperature of the food by using a self-regulating (SR) heating element formed on the top plate of the dining table without using a separate heating device.

In the present invention, a SR (Self Regulation) heating element is directly coated on a tempered glass to constitute a heating means for a kitchen table to enhance the stability of temperature control and to selectively drive an SR (Self Regulation) So that temperature control can be performed efficiently.

That is, a plurality of SR heating element compositions having different composition ratios are formed in the form of a paste and directly coated on the surface of the tempered glass to constitute a heating means for the table, and power is selectively applied to the SR heating elements according to the required heating temperature.

An example of the multi-temperature self-regulating surface heating element composition applied to the table according to the present invention is as follows.

The composition ratios shown below are examples, and it goes without saying that the composition ratios and materials are not limited to these compositions.

As an example, a composition comprising 5 to 16% by weight of an insulating binder component, 50 to 75% by weight of a resistive component and 10 to 40% by weight of a temperature control component, The SR heating element composition whose temperature is controlled to 700 ° C can be directly coated on the tempered glass substrate to constitute a multi-temperature self-regulating surface heating element.

Here, the insulating binder component is preferably a polyester-based or epoxy-based material, and the resistance component is preferably a mixture of nickel and aluminum.

Further, one or more calibration components selected from molybdenum (Mo), boron (B), and silicon (Si) may be additionally included to change the relative resistance value to the resistance component.

The temperature controlling component is preferably at least one oxide selected from the group consisting of silicon oxide, aluminum oxide, boron oxide, and barium oxide.

The surface heating element composition may further contain, as an organic solvent, alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol and butanol, and organic solvents such as benzene, xylene, texanol, ethylene glycol, butyl carbitol, ethyl cellosolve, glycerol, These can be used singly or in combination of two or more. Further, in place of such an organic solvent, water (water) can be used as a solvent.

Further, the surface heating element composition may further include a dispersant. The dispersing agent may be at least one selected from the group consisting of urethane type, acrylic type, phosphorus type, organic acid type and inorganic acid type.

Further, the surface heating element composition may further contain a thickener. At this time, the thickening agent is used for the workability such as the coating property in the production of the surface heating element by increasing the viscosity on the paste, and it is preferable that the thickening agent is a mixture of cellulose, polyacrylamide, polyurethane, polysaccharide, May be used.

The multi-temperature self-regulating type surface heating element applied to the dining table according to the present invention will be described in detail as follows.

In the present invention, the planar heating element composition is prepared in the form of a paste having different composition ratios as described above, and then directly coated on the entire surface of the tempered glass 10 as shown in FIG. 1 to produce an SR heating element.

The reason why the composition ratios of the surface heating element compositions are different from each other is that the heating temperature range is changed when power is applied.

1A shows that the first SR heating element 11a and the second SR heating element 11b having different heat generating temperatures are used to constitute a multi-temperature self-regulating type surface heating element. However, the heating temperature section is further divided into two SR It is of course possible to construct a multi-temperature self-regulating surface heating element by using a larger number of SR heating elements instead of heating elements.

Here, each of the SR heating elements has a different heating temperature, and is directly coated on the tempered glass substrate 10 at a distance from each other.

The area and shape to be coated may be spirally separated from each other in a circular area as shown in FIG. 1A, and the shape of the coated area may be circular, triangular, rectangular, pentagonal, hexagonal, rhombic, And the method in which the SR heating elements are coated is preferably a spiral shape or a zigzag shape in which they are separated from each other or a modification or combination thereof.

Particularly, as shown in FIG. 2, the first and second SR heating elements 21a and 21b are divided into a first area and a second area by spirally separating the entire first area and the second area from each other And the third and fourth SR heating elements 22a and 22b are spirally separated from each other and coated on the second area to selectively apply power to each of the power supply terminals A and B, It is also possible to configure the heating unit so as to be able to be driven by changing the heating temperature range and the heating region size.

Here, the composition ratios of the surface heating elements composing the first, second, third and fourth SR heating elements 21a, 21b, 22a and 22b may be different from each other, or the first and third SR heating elements 21a and 22a And the second and fourth SR heating elements 21b and 22b.

It is also possible to maintain the optimum temperature by varying the voltage level applied to each of the power supply terminals (a), (b), (c) and (d).

The coating type of the planar heating element composition as shown in FIG. 2 is one example, and it is obvious that the coating can be carried out in other ways.

1B is an enlarged cross-sectional view taken along the line A-A 'in FIG. 1A. The first SR heating element 11a and the second SR heating element 11b, which have different heating temperatures, are separately coated and separated from each other.

As the SR heating element is coated directly on the tempered glass substrate 10 as described above, the complexity of the process can be reduced as compared with a method of applying the insulator on the existing metal substrate and coating the SR heating element.

In order to coat the SR heating element directly on the tempered glass substrate 10, the surface of the tempered glass having high temperature resistance may be coated with a SR heating element after a sanding operation by a pretreatment process.

3 shows a back surface structure of the tempered glass substrate 10 constituting the multi-temperature self-regulating surface heating element according to the present invention.

A back surface mesh coating layer 12 is formed by coating a specific material on the back surface of the tempered glass substrate 10 with a mesh structure so that the heat release characteristics of the coating region and regions other than the coating are different from each other, So that the exothermic temperature is maintained only in the heating element region and heat is not transferred to the other regions.

The backside mesh coating layer 12 is formed on the back surface of the tempered glass substrate 10 so as to efficiently use heat. The backside mesh coating layer 12 is formed on the backside of the tempered glass substrate 10, It is also possible to construct a self-regulating type surface heat emission element.

A table according to the present invention having a multi-temperature self-regulating surface heating element having such a structure has a voltage applied waveform as shown in FIG. 4B.

4A and 4B are voltage waveforms for driving the multiple temperature self-regulating type surface heat emission element.

The conventional multi-temperature self-regulating type surface heating element applies a voltage as shown in FIG. 4A for temperature control. In this case, the energy efficiency is extremely lower than the voltage applied as shown in FIG. 4B, .

A table according to the present invention having such a multi-temperature self-regulating surface heating element will be described in detail as follows.

FIG. 5 is a configuration diagram of a table using a multi-temperature self-regulating surface heating element according to the present invention, and FIG. 6 is a sectional view illustrating a configuration of a container sensing sensor using a multi-temperature self- regulating surface heating element according to the present invention.

5 and 6, the dining table according to an embodiment of the present invention includes a body panel 50 serving as a top plate on which a food container is placed, a body panel 50 supporting the body panel 50 at a predetermined height, And a support means (51).

And a plurality of SR heating elements having different sizes in a specific area of the main body panel 50 and directly coated on the lower surface of the tempered glass substrate in the respective areas and being separated from each other, 52b, 52c, 52d and 52e formed in the body panel 50 and SR heating element forming areas 52a, 52b, 52c and 52d And a controller 53 for controlling the driving of the SR heating elements constituting the heating elements 52e.

Here, the SR heating element 11 has a configuration as shown in Figs. 1 to 3.

The body panel 50 may include a heat insulating material or a heat insulating material so that heat may not be transmitted to portions other than the SR heating element forming regions 52a, 52b, 52c, 52d, and 52e.

Although not shown in the drawings, the body panel 50 further includes a means for the user to input a control signal to the controller 53. [

The controller 53 includes a power supply unit (not shown) connected to an external power supply. The controller 53 is connected to each of the SR heating elements independently by electric wires to selectively supply electric energy to the respective SR heating elements, Temperature and heat generation range.

The reinforcing glass to which the SR heating elements are directly coated may be formed on the upper surface of the tempered glass. Alternatively, another plate may be further provided on the reinforcing glass on which the SR heating elements are directly coated.

On the surface of the main body panel 50, display lines indicating heating regions may be displayed at portions corresponding to the SR heating element formation regions 52a, 52b, 52c, 52d, and 52e.

6 is a view showing another embodiment of a table using a multi-temperature self-regulating surface heating element according to the present invention. The basic configuration is the same as in Fig. 5, 60 is placed, it is sensed through the container detecting means 63a, 63b, 63c to automatically drive the SR heating element 62 in the controller.

2, when the container 60 is small, only the middle sensor 63b of the container detecting means 63a, 63b, 63c is sensed in the container 60 The heating range can be adjusted automatically by the controller.

This is intended to solve the problem that it is troublesome for the user to input the control signal so that only the regions where the food container 60 is placed on the table having a plurality of SR heating element formation regions are supplied by the user for convenience.

When the food container 60 is placed, a sensor for sensing the food container 60 uses a sensor capable of sensing the food container 60 such as a proximity sensor, a photo sensor, and an ultrasonic sensor.

Alternatively, if a container used for a table incorporates an RFID chip, an RFID reader capable of sensing the RFID chip may be provided on the table so that the material, size, shape, type of food contained in the container, And the controller can automatically control the heat generation position, the heat generation range, and the heat generation temperature.

The self-regulating surface heater using multi-temperature according to the present invention can be applied to a tempered glass by directly applying an SR (Self Regulation) heating element in the form of paste to improve the stability of the temperature control, Regulation) By selectively driving a heating element in combination with a heating temperature, the temperature of the food in the dining table can be efficiently maintained.

As described above, it will be understood that the present invention is implemented in a modified form without departing from the essential characteristics of the present invention.

It is therefore to be understood that the specified embodiments are to be considered in an illustrative rather than a restrictive sense and that the scope of the invention is indicated by the appended claims rather than by the foregoing description and that all such differences falling within the scope of equivalents thereof are intended to be embraced therein It should be interpreted.

10. Tempered glass substrate 11a. The first SR heating element
11b. The second SR heating element 12. The back mesh coating layer
50. Body panel 51. Body panel support means
52a.52b.52c.52d.52e. SR heating element formation area 53. Controller

Claims (12)

A body panel;
Body panel support means for supporting the body panel to maintain a predetermined height;
SR heating element formation areas formed on the body panel to form SR heating elements which are directly coated on the lower surface of the tempered glass substrate in the respective areas;
And a controller for controlling driving of the SR heating elements formed in the SR heating element formation regions,
Wherein a plurality of SR heating elements having different heating temperature ranges are formed in the SR heating element formation region in accordance with respective composition ratios. The method according to claim 1, wherein the plurality of SR heating elements having different heating temperature ranges,
Wherein the surface heating element compositions having different composition ratios are formed in the form of a paste and directly coated on the surface of the tempered glass substrate, and the respective SR heating elements are separated from each other to be selectively supplied with power. The table using. The method according to claim 1, wherein the shape of the area coated with the plurality of SR heating elements having different heating temperature ranges is selected from shapes including circle, triangle, square, pentagon, hexagon, rhombus,
Wherein the method of coating the SR heating elements is a spiral shape or a zigzag shape separated from each other or a modification or combination thereof. The backlight unit of claim 1, further comprising a back side mesh coating layer on the rear surface of the reinforced glass substrate on which a plurality of SR heating elements having different heating temperature ranges are coated,
Wherein the back surface of the reinforced glass is coated with a mesh coat layer to maintain the heat generation temperature only in the SR heating element region and prevent heat from being transferred to the other regions. The surface heating element composition according to claim 1, wherein the surface heating element compositions constituting the plurality of SR heating elements having different heating temperature ranges,
5 to 16% by weight of an insulating binder component, 50 to 75% by weight of a resistive component and 10 to 40% by weight of a temperature control component,
And the heat is generated at 300 to 700 DEG C in the energized state. The controller according to claim 1, wherein the controller controls the plurality of SR heating elements having different heating temperature ranges to be selectively driven,
And the constant voltage is applied without changing the voltage level in order to drive the SR heating elements. The method as claimed in claim 1, wherein the entire area of the region where the SR heating elements are coated is divided into a first area inside and a second area outside,
The first and second SR heating elements are spirally separated from each other and coated, and the third and fourth SR heating elements are spirally separated from each other to coat the first and second SR heating elements, Wherein the power is applied to the power-on terminal, and the power is applied to the power-on terminal by varying the heating temperature range and the heating area size. The method according to claim 7, wherein the composition ratios of the surface heating element compositions constituting the first, second, third and fourth SR heating elements are all different, or the composition ratios of the first and third SR heating elements and the second and fourth SR heating elements are different A multi-temperature self-regulating table using a surface heating element. [2] The apparatus according to claim 1, wherein the tempered glass directly coated with the SR heating elements forms an upper surface of the body panel, or a plate made of another material is further provided on the tempered glass on which the SR heating elements are directly coated. Table with adjustable surface heating element. The apparatus according to claim 1, further comprising container detecting means for detecting a food container placed on the SR heating element of the main body panel, characterized in that the controller automatically drives the SR heating element according to the detection result of the container detecting means A multi-temperature self-regulating surface heating element. The table using the multiple temperature self-regulating type surface heating element according to claim 10, wherein a plurality of the container detecting means are provided in a corresponding one of the SR heating element forming areas. The RFID tag according to claim 1, wherein the container used for the table includes an RFID chip and an RFID reader capable of sensing a signal of the RFID chip,
And automatically controlling the heating position, the heating range, and the heating temperature in the controller by automatically detecting the material, the size, the shape, the type of food contained in the container, and the appropriate temperature of the container placed on the table, Table using surface heating element.

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