JPH03213908A - Device of cooking by composite heating - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a composite heating cooker that is equipped with a heating section that uses an electric heater or the like as a heating element, and an induction heating section that uses an induction heating coil as a heating element, which are adjacent to each other.

BACKGROUND OF THE INVENTION In recent years, composite cooking appliances that include a heating section that uses an electric heater or the like as a heating element and an induction heating section that uses an induction heating coil as a heating element have become popular.

Conventionally, this type of combined heating cooker only provides ease of use and safety for the user by appropriately arranging each heating part, for example, the heating part is placed behind the top plate, and the induction heating part is placed behind the top plate. It was placed at the front of the

Problems to be Solved by the Invention In such a conventional combined heating cooker, when both heating parts are used continuously at the same time, if there is a heating part adjacent to the intake port side of the induction heating part, the induction heating part As the intake air from the intake port rises due to the heat from the heating section, the overtemperature rise prevention device in the induction heating section will be activated, temporarily stopping heating in the induction heating section, and preventing sufficient cooking. Ta.

The present invention is intended to solve such problems, and a first object thereof is to enable the reheating section to be used without any trouble even when the heating section and the induction heating section are continuously used at the same time.

A second purpose is to enable preferential use of the induction heating section even when the heating section and the induction heating section are used at the same time.

Means for Solving the Problems In order to achieve the above-mentioned first object, the first means for solving the problems of the present invention is to provide a heating unit having a heating element such as an electric heater, and an induction heating coil having an induction heating coil as a heating element. and a heating section, and the intake port of the induction heating section is arranged at a position away from the heating section.

Further, a second problem-solving means of the present invention for achieving the second object is provided with a heating section using an electric heater or the like as a heating element, and an induction heating section using an induction heating coil as a heating element, A temperature detection means is provided near the intake port of the induction heating section, and heating of the heating section is stopped when the temperature detected by the temperature detection means exceeds a predetermined value.

Operation The present invention has the above-mentioned first problem-solving means. When the induction heating section starts heating, the internal cooling fan rotates, sucks in cooling air from the intake port, cools the internal electrical components, etc., and cools them from the exhaust port. Send out the wind. At this time, even if other heating parts such as electric heaters are operating at the same time, the heating part is not placed adjacent to the intake port of the induction heating part, so the air warmed by the heat of the heating part is used as the cooling air. As a result, it is not inhaled through the intake port of the induction heating section. Therefore, inside the induction heating section, the temperature overrise prevention device operates by sucking the warm cooling air heated by the heating section, and heating does not stop.

Furthermore, according to the second problem-solving means, when the heating section and the induction heating section are used at the same time, a temperature detection means is provided near the intake port of the induction heating section, and the temperature detected by the temperature detection means is a predetermined temperature. If the temperature exceeds the threshold, heating of the adjacent heating section is stopped. Therefore, the cooling air drawn by the cooling fan of the induction heating section is no longer heated by the heating section, and the induction heating section can always be used continuously with priority, without the overtemperature rise prevention device operating.

EXAMPLE Below, an example of the first invention will be described with reference to FIGS. 1 and 2.
This will be explained with reference to the figures.

In FIG. 1, an induction heating part 3 having a heating coil 2 as a heating element and a heating part 5 having an electric heater 4 as a heating element are provided adjacent to each other inside a container 1. The induction heating section 3 is
It is composed of a cooling fan 7 that cools electrical components 6 such as inverter components, an intake port 8 through which the cooling fan 7 takes in cooling air to cool the electrical components 6, and a heating coil 2 that heats a pot 9 by induction. ing. The heating coil 2 is placed on a support stand 10 and is arranged opposite to the top plate 1) on which the pot 9 is placed. The cooling air taken in through the intake port 8 is discharged to the heating section 5 side through the exhaust port 12 by the cooling fan 7. The intake port 8 is provided apart from the electric heater 4, and the heating section 5 and the induction heating section 3 are arranged via the exhaust port 12.

Next, the heating unit 5 which uses the electric heater 4 as a heating element includes a control unit 13 that controls heating of the electric heater 4, a cooling fan 14 that cools the control unit 13, and an intake port 15 that takes in cooling air. , and an exhaust port 16 for discharging cooling air. A projection 18 on which a pot 17 is placed is provided above the electric heater 4. The exhaust port 16 is provided close to the induction heating section 3 facing the exhaust port 12. cooling fan 14
The cooling air from the intake port 15 and the exhaust port 12 is discharged from the exhaust port 16. The guide 19 prevents the exhausted cooling air from entering the intake port 8 of the induction heating section 3.

Further, FIG. 2 is an external perspective view, in which the electric heater 4 of the heating section 5 and the top plate 1) of the induction heating section 3 are provided on the top surface and are arranged side by side and adjacent to each other. The front part is equipped with an operation section to adjust each heating.

Next, the operation of the above configuration will be explained. When the induction heating section 3 starts heating, a high frequency current is supplied to the heating coil 2, and the pot 9 is heated by induction by the magnetic flux generated by the heating coil 2.

At this time, the cooling fan 7 also rotates at the same time, sucking in cooling air from the intake port 8, and cooling the electrical components 6, heating coil 2, and the like. This cooling air is then discharged from the heating section 5 through the exhaust port 12.

Next, when the electric heater 4 starts heating, the temperature of the internal control section 13 rises due to the heat of the electric heater 4, but the cooling fan 14 rotates to cool the control section 13. The cooling air is
The cooling fan 14 takes in air through the intake port 15 and exhausts it through the exhaust port 16. At this time, the cooling air discharged from the exhaust port 12 of the induction heating section 3 is also discharged from the exhaust port 16 at the same time.

Here, since the intake port 8 of the induction heating section 3 is provided apart from the electric heater 4, the cooling air warmed by the electric heater 4 is directly inhaled, and the temperature of the internal electric components 6 becomes abnormally high. Therefore, the internal abnormal temperature rise prevention device (not shown) will not operate and the heating of the induction heating section 3 will not be stopped.

Note that the cooling fan 14 of the heating section 5 will be activated even when the heating section 5 has stopped heating, if the induction heating section 3 is heating, if there is an abnormality in the cooling fan 7 and the electrical components 6. When the internal temperature rises abnormally, rotation is started to lower the temperature inside the induction heating section 3.

As described above, according to the composite heating cooker of the embodiment of the first invention, even if both heating parts are used at the same time, both heating parts can be used without any problem.

Next, an embodiment of the second invention will be described with reference to FIG. Note that explanations of components having the same configuration as the embodiment of the first invention will be omitted. In FIG. 3, in the induction heating section 3,
The cooling fan 7 and the intake port 8 are provided on the electric heater 4 side,
The exhaust port 12 is arranged on the opposite side from the electric heater 4.

A temperature detection means 20 is provided near the intake port 8 to detect the temperature of the cooling air and output it to the control section 13 in the heating section 5 .

Next, the operation in the above configuration will be explained.

A temperature detection means 20 provided near the intake port 8 of the induction heating section 3 detects the temperature of the cooling air taken in from the intake port 8 and outputs the detected temperature to the control section 13 of the heating section 5 . The control unit 13 is
A predetermined internal reference value is compared with the output of the temperature detection means 20, and when the output of the temperature detection means 20 exceeds this reference value, heating of the electric heater 4 is stopped. When the electric heater 4 stops heating, the cooling fan 14 stops, and the heat from the electric heater 4 can suppress the temperature rise of the cooling air sucked by the cooling fan 7. In other words, the induction heating section 3 can preferentially continue heating without inhaling warm cooling air and activating the internal abnormal temperature rise prevention device. In addition,
The cooling fan 7 and the intake port 8 may be provided at a position away from the heating section 5 as in the embodiment of the first invention.

In the above embodiment, the heating section 5 is constituted by the electric heater 4, but the same effect can be obtained by using a heating section such as a gas or halogen heater.

Moreover, although heating of the electric heater 4 is stopped when the temperature detected by the temperature detection means 20 is abnormally high, the same effect can be obtained even if the power is reduced.

Effects of the Invention As is clear from the above description of the embodiments, according to the first invention, since the heating part such as the electric heater is disposed at a position other than the intake port side of the induction heating part, both heating parts Even if both heating parts are used at the same time, both heating parts can be used without any problem. Further, according to the second invention, a temperature detection means is provided near the intake port of the induction heating section, and when the temperature detected by the temperature detection means exceeds a predetermined value, heating of the heating section such as an electric heater is stopped. Therefore, even if both heating sections are used at the same time,
The induction heating section, which is safe and has high heating efficiency, can be used preferentially.

Note that by rotating the cooling fan of the heating section when the temperature inside the induction heating section is abnormally high, the reliability and cooling performance of the cooker can be significantly improved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a composite heating cooker according to an embodiment of the present invention, FIG. 2 is a perspective view of the same composite heating cooker, and FIG. 3 is a longitudinal sectional view of a composite heating cooker according to another embodiment of the present invention. FIG. 2... Heating coil, 3... Induction heating section, 4... Electric heater, 5... Heating section,
6...Intake port.

Claims (2)

[Claims] (1) A heating section that uses an electric heater or the like as a heating element, and an induction heating section that uses an induction heating coil as a heating element, and the intake port of the induction heating section is arranged at a position away from the heating section. A composite heating cooker. (2) A heating section that uses an electric heater or the like as a heating element, and an induction heating section that uses an induction heating coil as a heating element, and a temperature detection means is provided near the intake port of the induction heating section, and a temperature detection means is provided near the intake port of the induction heating section. A composite heating cooker configured to stop heating the heating section when the detected temperature exceeds a predetermined value.