JPH07312279A - Electric cooking heater - Google Patents

Abstract

PURPOSE:To provide an electric cooking heater capable of displaying the heating and heating power of an electromagnetic induction heating part can be performed with a simple structure. CONSTITUTION:This electric cooking heater has an electromagnetic induction heating part 3 provided in a body, and a flat plate 5 consisting of a crystallized glass transmitting light which is arranged on the upper surface of the electromagnetic induction heating part 3. A light emitting diode 7 which is electrified simultaneously with an induction heating coil 6 to emit a light for heating display is provided on the outer circumference of the induction heating coil 6 constituting the electromagnetic induction heating part 3, and a plurality of light emitting diodes 8 which are electrified according to the heating power of the induction heating coil 6 to emit lights for heating power display are provided near the light emitting diode 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric cooking heater having an electromagnetic induction heating section and a flat plate.

[0002]

2. Description of the Related Art Conventionally, electromagnetic induction heating cookers are safer than gas cookers, and thus the demand is increasing year by year. However, the heating part of the electromagnetic induction heating cooker applies a high-frequency current to the induction heating coil, generates a high-frequency magnetic field, and causes an eddy current to flow in the pan itself as a load that is magnetically coupled to the induction heating coil, resulting in Joule heat. Since the pot itself generates heat, a light emitting diode or the like provided on the operation panel has been used as a means for indicating the heating temperature and the heating power thereof, as shown in JP-A-5-47463.

Further, an electric cooking heater provided with an electromagnetic induction heating section and a transparent flat plate is disclosed in Japanese Patent Laid-Open No. Hei.
No. 114182, etc., a display means is provided at a position lower than the flat plate and higher than the induction heating coil to display the heated portion as if it were similar to a gas cooker or an electric heater. For example, there is a device in which a light emitting means whose brightness changes in accordance with the intensity of the heating output can be visually recognized.

[0004]

In the electromagnetic induction heating cooker in which the conventional means for indicating the heating temperature and the heating power is provided on the operation panel, there is a problem that the heating state of the upper surface of the flat plate is difficult to understand. Further, in the electric cooking heater that displays the heating portion of the flat plate, the heating portion on the upper surface of the flat plate is known, but the heating power is not known, and even in the electric cooking heater provided with the light emitting means whose brightness changes according to the output, It had the drawback that the heating power was difficult to understand.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is provided with an electromagnetic induction heating section in the main body, and crystallized glass that transmits light to the upper surface of the electromagnetic induction heating section. In an electric cooking heater that has a flat plate configured by the etc., a light emitting diode that is energized and emits light at the same time as the induction heating coil is provided on the outer periphery of the induction heating coil that constitutes the electromagnetic induction heating section, and the vicinity of this light emitting diode is further provided. In addition, a plurality of light emitting diodes are provided for displaying heat power by emitting light by being energized according to the heat power of the induction heating coil.

[0006]

With the above construction, when the induction heating coil is energized, the light emitting diode for heating display is energized to emit light, and the light is transmitted to the flat plate upper surface above the outer periphery of the induction heating coil for heating display. The light emitting diode for thermal power display is energized to emit light, and the light is transmitted to the upper surface of the flat plate to display thermal power.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of an electric cooking heater to which an embodiment of the present invention is applied, FIG. 2 is a partial sectional view of the same electromagnetic induction heating section, and FIG. 3 is a plan view thereof.

In FIG. 1, reference numeral 1 is a main body of an electric cooking heater, 2, 3, and 4 are heating portions provided on the upper portion of the main body 1 and made of various heat sources, and in this embodiment, 2 is a halogen heater. Part, 3 is an electromagnetic induction heating part,
4 is a radiant heater part. Reference numeral 5 denotes a flat plate made of crystallized glass having heat resistance and light transmittance, and covers the upper surfaces of the heating units 2, 3 and 4. The above constitutes a so-called smooth stop heater.

2 and 3, the electromagnetic induction heating section 3 includes an induction heating coil 6, and a plurality of light emitting diodes 7 for heating display which are annularly provided on the outer circumference of the induction heating coil 6.
Further, it is composed of a plurality of light emitting diodes 8 for displaying thermal power, which are provided in the vicinity of the light emitting diode 7, and a control unit (not shown) for these. Reference numeral 7'denotes a heating display portion, which is seen when the light emitting diode 7 for heating display emits light, and this light is seen as being transmitted to the upper surface of the flat plate 5 on the electromagnetic induction heating portion 3. Similarly, 8'denotes a light emitting diode 8 for thermal power display. This is a thermal power display unit that appears when is emitted.
Reference numeral 9 is a pot as a load placed on the upper surface of the flat plate 5 on the electromagnetic induction heating unit 3.

Next, the operation of the above configuration will be described. When the pan 9 is placed on the upper surface of the flat plate 5 on the electromagnetic induction heating unit 3 and is controlled by a control unit (not shown) to energize and heat the induction heating coil 6, the light emitting diode 7 for heating display and the heating power display. The light emitting diode 8 is energized to emit light.
The heating display portion 7'on the outer periphery of the induction heating coil 6 illuminates, the heating state is known, and the heating power display portion 8'in the vicinity thereof illuminates to make the heating power clear.

It should be noted that the plurality of heating display light-emitting diodes 7 have the same operation and effect as one annular light-emitting body. Further, as shown in FIG. 3, the flat plate 5 is displayed on its upper surface with thermal power 1 ... Thermal power 7, thermal power 8 etc., and the light emitting diode 8 for displaying thermal power is displayed thermal power 1 ... Thermal power 7, thermal power 8 etc. according to the thermal power. When the number of emitted light is changed correspondingly, the fire power becomes clearer.

[0012]

According to the present invention, a light emitting diode for heating display is provided on the outer circumference of an induction heating coil which constitutes an electromagnetic induction heating section, and a plurality of light emitting diodes for thermal power display are provided in the vicinity of the light emitting diode. Therefore, with a very simple structure, the heating display and the heating power display of the electromagnetic induction heating part can be clarified on the upper surface of the flat plate, so heating and cooking can be done with a feeling similar to a gas cooker or an electric heater, and its practical effect is extremely large. is there.

[Brief description of drawings]

FIG. 1 is an external perspective view of an electric cooking heater showing an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of the same electromagnetic induction heating unit.

FIG. 3 is a partial plan view of the same.

[Explanation of symbols]

 1 Main body 3 Electromagnetic induction heating part 5 Flat plate 6 Induction heating coil 7, 8 Light emitting diode

Claims (1)

[Claims] 1. A main body (1) is provided with an electromagnetic induction heating section (3), and a flat plate (5) made of crystallized glass or the like which transmits light is arranged on the upper surface of the electromagnetic induction heating section (3). In the electric cooking heater described above, a light emitting diode (7) is provided on the outer periphery of the induction heating coil (6) constituting the electromagnetic induction heating section (3) to simultaneously emit current and emit light for heating and display. An electric cooking heater, characterized in that a plurality of light emitting diodes (8) are provided in the vicinity of the light emitting diode (7) to emit light by being energized according to the heat power of the induction heating coil (6) to display the heat power.