JP3405318B2 - Induction heating cooker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating cooker, and more particularly to a structure for visually distinguishing a plurality of stoves having different rated outputs.

[0002]

2. Description of the Related Art Conventionally, the demand for induction heating cookers of this type is increasing because they do not produce flames and have high thermal efficiency, as compared with gas stoves. FIG. 5 is a perspective view of a conventional general induction heating cooker. In FIG. 5, 1 is a main body case, 2 is a top plate on which a cooker to be heated is placed, and 3 and 4 are heating units by induction heating with the same rated output, which are provided in a heating coil provided below the top plate 2. It corresponds. 5 is a radiant heater used when heating in an aluminum pan or copper pan that cannot be used in induction heating.

When induction heating cooking is performed by the induction heating cooker configured as described above, a heating cooking container capable of induction heating is placed on the heating unit 3 or 4 on the top plate and the power is turned on. It happened.

[0004]

However, in the conventional induction heating cooker, the plurality of heating parts all use the same rated heating coil. For example, there are two heating parts in the figure, and the corresponding rated output of the heating coil is 2 kW.
Met.

In recent years, however, with the diversification of cooking, it has been desired to use a heating unit having a different output, especially a heating unit having a large output. Therefore, the present invention is intended to provide an induction heating cooker having heating coils with different ratings, that is, heating units with different inputs and outputs.

However, even if the output of the heating unit is different, it cannot be distinguished by the induction heating cooker. In the conventional induction heating cooker, when the cooking containers to be heated are placed on both of the heating units, of course, either one may be placed on any heating unit.

However, when the output of the heating unit is different, there is a problem that if the heating unit is erroneously selected, the planned cooking time will be incorrect, or the temperature will be too high and the finish of cooking will be poor.

The present invention solves the above problems, and an object thereof is to provide an induction heating cooker capable of recognizing a difference in output with a simple structure.

[0009]

In order to solve the above-mentioned problems, the present invention provides a graphic for visually distinguishing the difference in rated output on the heating portion on the top plate on which the cooking container to be heated is placed, for example, Changed to display figures of different sizes or different colors .

By thus displaying the difference in the output due to the difference in the figure, the heating portion can be easily selected.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In order to solve the above-mentioned problems, according to the present invention, there is provided a heating portion provided on a top plate for placing a cooking vessel to be heated and heating it by induction heating, and a heating part provided below the top plate. A plurality of heating coils having different rated outputs are provided corresponding to the parts, and a light emitting means for emitting a light beam. The light emitting means can visually distinguish the difference in the rated output in the heating part on the top plate. The figure is displayed .

[0012] Specifically, the difference in the rated output is different from the size.
Figure, figure with different line width, single figure and double or more
The figure above is displayed. Or it was to be the display of the difference figure different colors or shapes of different colors of light and shade, of the rated output. The rated output of the heating unit can be easily visually distinguished by such a difference in the figure.

Further, the display figure is displayed by using at least one of a point, a straight line and a polygon. Since the figure is simple, the structure of the light emitting means necessary for display can be made simple. In the case of two heating coils, only one of them is displayed as a graphic. This allows the rated output to be easily distinguished. Further, the light emitting means is configured to be lit during cooking and blinking and lit until the temperature of the top plate becomes equal to or lower than the dangerous temperature after cooking. With this configuration, the progress of cooking can be easily grasped.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

The top plate used in the present invention may be translucent or non-translucent. However, in the case of non-translucency, the portion corresponding to the figure of the top plate must be made translucent. As the method, it is possible to achieve the object by applying a black-colored inorganic paint to the lower surface of the translucent glass or the like that constitutes the top plate, and not applying the inorganic paint only to the portion requiring translucency. . Hereinafter, in this embodiment, a case where a translucent top plate is used will be described.

In this embodiment, the rated output is 2 kW and 3 kW as an example of a plurality of heating coils having different rated outputs.
In the following description, it is assumed that a heating coil of 2 kW is arranged on the left side and a heating coil of 3 kW is arranged on the right side.

Further, the structure of the induction heating cooker of the present invention and the structure of the conventional induction heating cooker are almost the same in the main part, and a particularly different point is the display method of the heating part displayed on the top plate. is there. Therefore, the same reference numerals are given to the same configurations as the configuration of the present invention and the conventional configuration, and description thereof will be omitted.

Further, the display on the top plate is to see the light emitted by the light emitting means provided below the top plate from the transparent top plate (display means on the top plate), and the figure shows the light emitting means. It almost matches the composition. However, since the present invention is intended to clarify the difference in display, the description of the light emitting means will be only an outline.

(First Embodiment) FIG. 1 is a perspective view of an induction heating cooker according to the first embodiment. In the figure, the left side is a heating unit 6 corresponding to a heating coil with a rated output of 2 kW, and the right side is a heating unit 7 corresponding to a heating coil with a rated output of 3 kW. In the present embodiment, the difference in rated output is displayed in different size figures , which are shown as circles surrounding the heating portion. The circle corresponding to the rated output of 3 kW is larger than the radius of the circle corresponding to the rated output of 2 kW. This makes it possible to easily visually determine which output is larger.

Although a circle is used as a figure in the above embodiment,
Other than this, it may be a polygon such as a quadrangle that surrounds the entire heating portion, or may be a circle or a part of the polygon.

Further, the size of the figure may be such that the difference in rated output can be discriminated. Therefore, the size does not necessarily have to be large enough to enclose the heating portion, but the heating portion is enclosed. If the size is about the same, it is preferable because the difference in rated output can be discriminated after the heating and cooking container is placed on the top plate, or during heating or cooking.

Although the shape surrounding the heating portion is used as a figure, it is costly, so lines may be used to distinguish the length of the line, and the size of the light bulb may be used. You may make it display as a point. However, if it is displayed as a line or a dot, it becomes more difficult to discriminate compared to the case where the circumference of the heating portion such as a circle is surrounded.

(Embodiment 2) FIG. 2 is a plan view showing only a heating portion which is a main portion of an induction heating controller according to the present embodiment 2. In the figure, the circumferential width of the heating portion 8 corresponding to the heating coil of rated output 2 kW is made narrower than the circumferential width of the heating portion 9 corresponding to the heating coil of 3 kW. This makes it possible to easily determine the difference in output.

Further, as in the first embodiment, the figure is not limited to a circle. Even if it is displayed as a line,
Can be identified by different figures . Further, even in the case of displaying by dots, it is possible to discriminate by the size. In addition, the concept of the graphic display of the first embodiment is applied to the second embodiment.
Of course, the idea of the graphic display of may be added.

(Embodiment 3) FIG. 3 is a plan view of a heating portion which is a main portion of the induction heating cooker according to the third embodiment. In Fig. 3, the figure of the heating unit 10 corresponding to the rated output of 2 kW is indicated by one circle, and the rated output of 3 kW.
The figure of the heating unit 11 corresponding to is shown by two concentric circles. As a result, the difference in output can be visually and easily identified. Similarly, when the heating portion is surrounded by polygons, congruent figures having different sizes may be concentrically arranged on one side and on the other side. Further, in the case of displaying using lines or points, it can be determined by changing the number of lines or the number of points.

Further, it is needless to say that the concept of graphic display of the first embodiment may be added to the concept of graphic display of the first and / or second embodiment.

(Embodiment 4) In the above-described Embodiments 1 to 3, the difference in rated output is displayed as a difference in the figure.

In the present embodiment, the rated output is to be discriminated by the color difference of the figure. For example, there is a method in which heating units corresponding to different rated outputs are displayed by circles of the same size, heating units having a rated output of 2 kW are displayed in blue, and heating units having a rated output of 3 kW are displayed in red. Further, the same color may be used to display the heating portion having a rated output of 2 kW in a light red color and the heating portion having a rated output of 3 kW in a dark red color, so that the shade of the color may be used.

As a method of coloring the display, a color light source having a colored rod-shaped heating element such as a light bulb or a fluorescent lamp may be used, or a filter may be used to obtain desired colors and shades of colors. You can choose.

Further, as a method of coloring the display surrounding the heating portion like a circle, as shown in FIG. 4, a colored light source or a donut-shaped colored light source is provided on the outer cover of an annular light emitting means such as a fluorescent lamp. The light emitting means 13 may be provided at the center of the light guide plate 12, the light of the light emitting means 13 may be guided by the light guide plate 12, and the light may be emitted annularly around the light guide plate 12 to display a circle on the top plate. At this time, a color light source may be used as the light source. Alternatively, a color light guide plate may be used as the light guide plate. There is also a method in which a luminescent paint that emits light upon irradiation with light is applied under the top plate and the luminescent paint is made to shine.

(Embodiment 5) In Embodiments 1 to 4, the case where a graphic is displayed for each heating section having different rated outputs has been described, but when there are two induction heating sections, one of them may be displayed. The graphic display may be performed according to the first to fourth embodiments.

As described above, as described in Embodiments 1 to 5, the difference in rated output can be displayed by the shape of the figure and various colors. Of course, the display is not limited to the above-mentioned embodiment, and the shape of the display can be appropriately changed by a dot, a straight line, a circle, a polygon, a part of the circle or the polygon, and a combination of various colors. For example, a circle having a rated output of 3 kW can be displayed with a large radius and a wide color in a different color from that of a circle having a rated output of 2 kW. In this case, the inside of the heating portion may be used as a surface so that they can be distinguished by the difference in surface emission.

As described above, in the present invention, the light emitting means is provided under the top plate and the light emitted from the light emitting means is displayed on the top plate. However, in addition to this, a graphic is displayed on the top plate. , There is also a way to distinguish. However, when a figure is drawn on the lower side of the top plate, the reflected light of the light incident from the upper surface is seen, and there is a problem that it is difficult to see because the top plate is thick. Further, when drawing a figure on the top plate, it is necessary to consider wear due to friction with the cooking container to be heated.

In the present embodiment, the case where there are two heating portions has been described, but it goes without saying that there may be two or more heating portions, and the number of heating portions is large and the difference in the rated output of the heating coils is large. The more the effect of the present invention is increased.

Further, although the case where the planned output is 2 kW and 3 kW has been described, the present invention is not limited to this, and a heating unit having a smaller or larger rated output may be used. Of course, a small heating unit may be provided on the right side.

Since the induction heating cooker generally has a temperature detecting means and a controlling means, this is used to turn on the figure of the present invention during cooking, and the temperature of the top plate becomes below the dangerous temperature after cooking. Blinks and lights up, "when there is no pot",
The display method may be changed for each function such as "during fried food".

[0037]

As described above, according to the present invention, since the difference in the rated output of the heating coil is graphically displayed on the heating portion on the top plate by the light emitting means, the difference in the rated output can be easily visually recognized. Since it is possible to distinguish between them, the heating unit can be selected according to the type or amount of cooking, so that cooking can be performed appropriately.

[Brief description of drawings]

FIG. 1 is a perspective view of an induction heating cooker according to a first embodiment of the present invention.

FIG. 2 is a plan view of a main part of the induction heating cooker according to the second embodiment.

FIG. 3 is a plan view of a main part of the induction heating cooker according to the third embodiment.

FIG. 4 is a view showing an example of a light emitting means of the induction heating cooker.

FIG. 5 is a perspective view of a conventional induction heating cooker.

[Explanation of symbols]

2 Top plate 6,7,8,9,10,11 Heating part

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Claims (7)

(57) [Claims] 1. A heating unit provided on a top plate on which a cooking vessel to be heated is placed and heated by induction heating, and a plurality of heating units provided below the top plate corresponding to the heating unit and having different rated outputs. An induction device comprising a heating coil and a light emitting means for emitting a light beam, the light emitting means displaying a different size graphic on the heating portion on the top plate so that the difference in the rated output can be visually distinguished. Heating cooker. 2. A cooking vessel to be heated is placed and induction heating is performed.
The heating section provided on the top plate for
A plurality of heating units with different rated outputs provided corresponding to the heating unit.
A heat coil and a light emitting means for emitting a light beam are provided.
The light means sees the difference in the rated output in the heating part on the top plate.
Display shapes with different line widths so that they can be visually distinguished
Induction heating cooker you. 3. A cooking vessel to be heated is placed and induction heating is performed.
The heating section provided on the top plate for
A plurality of heating units with different rated outputs provided corresponding to the heating unit.
A heat coil and a light emitting means for emitting a light beam are provided.
The light means sees the difference in the rated output in the heating part on the top plate.
Single figure and double or more so as to be visually distinguishable
An induction heating cooker that displays each of the above figures . 4. A heating cooking container is placed and induction heating is performed.
The heating section provided on the top plate for
A plurality of heating units with different rated outputs provided corresponding to the heating unit.
A heat coil and a light emitting means for emitting a light beam are provided.
The light means sees the difference in the rated output in the heating part on the top plate.
Shapes with different colors or shades of color so that they can be visually distinguished
Induction heating cooker that displays different shapes . 5. The light emitting means has a difference in rated output on the top plate.
Displayed points, straight lines,
Or display using at least one of the polygons
The induction heating cooker according to any one of claims 1 to 4 . 6. A heating unit provided on a translucent top plate on which a cooking container to be heated is placed and heated by induction heating, and a rated output provided below the top plate so as to correspond to the heating unit. Two heating coils different from each other and a light emitting means for emitting a light beam, and the light emitting means is arranged so that one of the heating coils can be visually distinguished on the top plate. An induction heating cooker with a graphic display on one side. 7. The light emitting means is lighted during the cooking, the induction heating cooker according to any one of claims 1 to 6 has a configuration in which the temperature of the cooking termination rear casing is blinking until below critical temperature.