KR20070016571A - Electric range having the function of matching the center of a container to be heated with the center of heat-generating body of the electric range - Google Patents

Abstract

An electric range in which the upper plate is generally flat, wherein a plurality of micro switches are arranged at radial equal intervals with respect to the center of the heat generating unit, and the pressing holes of the micro switches protrude from the upper plate to be pressed by the load of the container to be heated. And an electric range equipped with a control device for outputting a predetermined warning signal when different electrical signals are detected from the plurality of micro switches and a danger warning device for notifying of a dangerous situation in response to the warning signal. Is initiated. Such an electric range allows the center of the heating region of the electric range to coincide with the center of the heating object container regardless of the size of the heating object container so that most of the heat generated from the heating element of the electric range is transferred to the heating object container.

Electric range, center match

Description

ELECTRIC RANGE HAVING THE FUNCTION OF MATCHING THE CENTER OF A CONTAINER TO BE HEATED WITH THE CENTER OF HEAT-GENERATING BODY OF THE ELECTRIC RANGE}

1 is a cross-sectional view of a conventionally used electric range;

FIG. 2 is a perspective view of main parts of the electric range shown in FIG. 1; FIG.

3A is a plan view of main parts of an electric range according to a preferred embodiment of the present invention;

3B is a cross-sectional view of the electric range shown in FIG. 3A;

3C is an internal circuit diagram of the electric range shown in FIG. 3A;

Figure 4a is a view showing a good operation of the electric range in accordance with the present invention

4B is a cross-sectional view of FIG. 4A;

4C is an internal circuit diagram of the electric range according to the invention when operated as shown on the left side of FIG. 4A;

Figure 5a is a view showing a bad operation of the electric range in accordance with the present invention;

5B is a cross-sectional view of FIG. 5A; And

FIG. 5C is an internal circuit diagram of the electric range according to the invention when operated as shown in FIG. 5A.

<Explanation of symbols for the main parts of the drawings>

1: electric range 2: top plate

4: heating element 6: heat insulating member

12: circle S1, S2, S3, S4: micro switch

10: lamp

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to the field of cooktop electric ranges, and more particularly, to electric ranges provided with a function of checking whether a heating target container and a heating element match the center.

Previously, gas ranges were mainly used to warm or cook food. Such gas ranges can provide powerful firepower, but are not only exposed to the risk of gas explosion due to gas leakage, but also are not easy to arbitrarily adjust the heating temperature of food.

In recent years, in order to solve the disadvantages of the gas range while providing a comfortable indoor air, an electric range (electric range) that allows food to be cooked by heating the heating element by electricity has been developed and used. Unlike a gas range, these electric ranges offer no risk of gas explosion due to gas leakage and provide a pleasant odorless indoor air. In addition, the electric range may have a simple appearance, in particular, a flat appearance, unlike the gas range, which is very advantageous to be installed in a built-in manner.

As shown in FIG. 1, the electric range 1 includes heat generator 4 embedded in the electric range 1, and heat generated from the heat generator 4 is transferred to the internal space of the electric range 1. It comprises a heat insulating member 6 for blocking the thing and a flat top plate 2 on which the container to be heated is placed. Unexplained reference numeral 8 denotes a knob. In the planar upper plate 2 of the electric range 1, as shown in FIG. 2, a heat generating region by the heat generating body 4 is indicated by a circle 12. Through the circle 12 displayed on the flat top plate 2, the user of the electric range 1 can determine whether or not the container to be heated is correctly placed in the heat generating region by the heating element 4.

However, when the bottom of the container to be heated exceeds the circle 12 described above, it is difficult to determine whether or not the center of the container to be heated coincides with the center of the heat generating region of the electric range. If the center of the heat generating region and the center of the container to be heated do not coincide, part of the heat transferred from the heating element 4 will be lost. In other words, the heat transfer effect will be reduced.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to match the center of the heating zone of the heating oven and the center of the heating target container irrespective of the size of the heating target container of the electric range An object of the present invention is to provide an electric range in which most of the heat generated from the heating element is transferred to the container to be heated.

In order to achieve the above object, the present invention, the upper plate is a generally flat electric range, a plurality of micro-switch is disposed radially equidistant with respect to the center of the heat generating unit, the pressing hole of the micro-switch is It is arranged to protrude from the top plate so as to be pressed by a load, and a control device for outputting a predetermined warning signal when different electrical signals are detected from the plurality of micro-switches and to notify of a dangerous situation in response to the warning signal. To provide an electric range equipped with a hazard warning device.

In the electric range according to the invention, the danger warning device is a lamp for visually providing a danger situation.

Alternatively, the danger alerting device may be a buzzer to provide audible warning of a hazardous situation.

As mentioned above, in the electric range according to the present invention, regardless of the size of the container to be heated, the center of the heating region of the electric range and the center of the container to be heated coincide with most of the heat generated from the heating element of the electric range. To be delivered to the target container.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the case where the components of the electric range shown in FIGS. 3A to 5C and the components of the electric range shown in FIGS. 1 and 2 are the same, reference numerals of FIGS. 1 and 2 are used.

3a and 3b schematically show an electric range 1 according to a preferred embodiment of the invention, and in Fig. 3c there is illustrated the circuit structure used in the invention.

Referring to these drawings, in the electric range 1 according to the present invention, a flat top plate 2, preferably a flat top plate 2 having excellent heat transfer efficiency, is disposed thereon. A heating element 4 that generates heat by electricity is disposed below the flat upper plate 2, and heat generated from the heating element 4 is transferred to the inner space of the electric range 1 at the periphery and the lower portion of the heating element 4. The heat insulation member 6 for blocking it is arrange | positioned.

A plurality of micro switches S1, S2, S3, and S4 are disposed around the heat generator 4 at radial equal intervals with respect to the center of the heat generator 4. Each micro switch S1, S2, S3, S4 is provided with a pressing hole (indicated by a thick solid line in the vertical direction), as shown in the figure, and each pressing hole is pressurized by a load of a container to be heated. It protrudes upward from (2), and is arrange | positioned.

In the present invention, in addition to these micro switches (S1, S2, S3, S4), electrical signals generated by the operation of the pusher of these micro switches (S1, S2, S3, S4) are detected to provide a predetermined warning signal. A control device for outputting, for example, a microcomputer, and a danger warning device, for example, a lamp and a buzzer, for notifying of a dangerous situation in response to the above warning signal. The microcomputer receives the micro signals S1, S2, S3, S4 when the electrical signals are the same, that is, they are all on or all off, and from the micro switches S1, S2, S3, S4. When the electrical signals of are different, that is, some are on and some are off. As an example, FIG. 3C shows a case where the electrical signals from the micro switches S1, S2, S3, and S4 are the same, and all of them are in an off state.

4a to 4c show and show a good operation of the electric range 1 according to the invention.

In particular, the figure shown to the left of FIG. 4A and FIG. 4B shows the case where the heating object container L is large and the center of the heat generating body 4 and the center of the heating object container L match. In this case, as shown in the drawing, all of the push holes of the micro switches S1, S2, S3, and S4 operate to show the same electrical signals. It is recognized that these same signals are detected by the control device so that the center of the heating target container coincides with the center of the heating element 4 (see especially FIG. 4C). In this case, the danger warning device may be unreacted or reacted to indicate that the center of the heating target container and the center of the heating element 4 coincide.

4A and 4B show a case where the heating target container S is small and the center of the heating element 4 coincides with the center of the heating target container L. FIG. In this case, as shown, all of the push-buttons of the micro switches S1, S2, S3, and S4 do not operate, and as a result, show the same electrical signals as described above. These same signals are detected by the control device, and it is recognized that the center of the heating target container and the center of the heating element 4 coincide. In this case, the danger warning device may be unreacted or reacted to indicate that the center of the heating target container and the center of the heating element 4 coincide.

5a to 5c show and demonstrate the poor operation of the electric range 1 according to the invention.

In particular, the figure shown to the left of FIG. 5A and FIG. 5B shows the case where the heating object container L is large and the center of the heating element 4 and the center of the heating object container L do not correspond. In this case, as shown, only some of the pressing holes of the micro switches S1, S2, S3, and S4 operate to show different electrical signals. These different signals are detected by the control device for outputting a predetermined warning signal, and the detected signals are transmitted to the danger warning device, thereby notifying that a dangerous situation. As the danger warning device, a lamp or a buzzer is preferable as described above. Of course, any form of hazard warning device may be used if the signal can be represented in any form in response to an electrical signal.

On the other hand, the figure shown to the right of FIG. 5A and 5B shows the case where the heating object container S is small and the center of the heating element 4 and the center of the heating object container S do not correspond. In this case, as shown, only some of the pressing holes of the micro switches S1, S2, S3, and S4 operate to show different electrical signals. These different signals are detected by the control device for outputting a predetermined warning signal, and the detected signals are transmitted to the danger warning device, thereby notifying that a dangerous situation. As the danger warning device, a lamp or a buzzer is preferable as described above. Of course, any form of hazard warning device may be used if the signal can be represented in any form in response to an electrical signal.

As shown in FIGS. 5A and 5B, when the containers to be heated L and S do not coincide with the center of the heating element 4, the micro switches S1, S2, S3 and S4 as shown in FIG. 5C. Some of them are on and others are off to output different electrical signals. These different electrical signals are detected by the control device as described above, and the detected electrical signal is transmitted to the danger warning device, so that the center of the dangerous situation, i.e., the heating target containers L and S and the heating element 4 It is notified in a predetermined form that the centers of do not coincide. As the danger warning device, a lamp or a buzzer is preferable as described above. Of course, any form of hazard warning device may be used if the signal can be represented in any form in response to an electrical signal.

As described above, in the electric range according to the present invention, regardless of the size of the container to be heated, the center of the heating region of the electric range and the center of the container to be heated coincide with most of the heat generated from the heating element of the electric range. To be delivered to.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

Claims (3)

As the top plate is generally flat electric range, A plurality of micro switches are arranged at radial equal intervals with respect to the center of the heat generating unit, and the pressing holes of the micro switches are protruded from the upper plate to be pressed by the load of the container to be heated. The electric range is provided with a control device for outputting a predetermined warning signal when different electrical signals are detected from the plurality of micro-switch, and a danger warning device for notifying a dangerous situation in response to the warning signal. . 2. The electric range according to claim 1, wherein said danger warning device is a lamp. 2. The electric range according to claim 1, wherein said danger warning device is a buzzer.

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