JPS63221587A - Heating cooker - 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 so-called microwave oven that heats an object in a heating chamber using both radio waves and a heater, such as a microwave oven with a heater.

BACKGROUND ART FIG. 3 is a sectional view showing a conventional heating cooking device. Third
In the figure, a heating chamber 1 is provided with an upper heater 2 at the upper part and a lower heater 3 at the lower part. Furthermore, a magnetron 4 is provided, and radio waves are irradiated into the heating chamber 1 from a power supply port 6 provided on the side wall of the heating chamber 1 via a waveguide 6, and the food 8 placed on the saucer 7 is heated by radio waves or by a heater. Combined heating is performed using a heater and radio waves.

Problems to be Solved by the Invention However, according to such a conventional heating cooking device, when performing heater heating after radio wave heating, the saucer 7 is placed on a rotating mounting table 9 to eliminate uneven heating due to radio waves. However, it is necessary to heat the food with the heater as it is, and the distance between the upper heater 2 and the food 8 becomes long, so that it takes time to brown the food. Also, if you try to heat the food by placing a saucer on a shelf on the side wall of the heating chamber to bring it closer to the upper heater 2, there is no way to stir the radio waves, and not only will the radio waves heat the food unevenly, but the upper heater 2 will
Since the heater is a pipe-shaped heater such as a heater, there is also a problem in that uneven heating of the heater occurs.

Further, since the saucer 7 is placed on the rotary mounting table 9, the shape of the saucer must be round, which has the disadvantage that the amount of food that can be heated at one time is smaller than with a rectangular saucer.

Furthermore, if the heaters 2 and 3 are exposed in the heating chamber 1, even if food stains are scattered on the wall of the heating chamber 1,
The heater was in the way and difficult to clean, making it inconvenient to use.

The present invention solves these conventional problems, and allows a large amount of food to be cooked at once using radio wave heating and heater heating in a short time, has excellent thermal efficiency, and is easy to use by keeping the heating chamber clean. Moreover, it is an object of the present invention to provide a heating cooking device with good heating performance that can heat evenly and uniformly.

Means for Solving the Problems In the heating cooking device of the present invention, the heater is formed into a planar shape and is arranged over almost the entire outer surface of the heating chamber wall, and a high frequency transmitting material such as ceramic is mounted on a shelf provided on the side wall of the heating chamber. The formed saucer is installed to enable combined heating of radio wave heating and heater heating.

Still, a power supply port is provided on the bottom wall of the heating chamber, and a rotary mounting table is provided above the power supply port, so that radio waves are stirred by the rotating mounting table.

Function: The cooking device of the present invention is capable of radio wave heating and heater heating of a large amount of food at once by forming the tray on which the food is placed and the saucer into a rectangular shape made of a high frequency transmitting material such as ceramic. Furthermore, since the saucer is made of ceramic or the like, the inside of the food can be heated no matter where the power supply port is located within the heating chamber, provided it has the ability to stir the radio waves.

In addition, if a planar heater made of a heating element and a heat-resistant insulating material is installed on the outer surface of the upper wall of the heating chamber, and the saucer is placed on a shelf installed on the side wall of the heating chamber and heated by the heater, it is possible to quickly and uniformly burn marks. can.

Furthermore, according to the configuration of the present invention, it is possible to perform alternating heating between radio wave heating and heater heating, and it is possible to heat food from the inside using radio wave heating and from the outside using heater heating, and to heat a large amount of food in a short time. It becomes possible to cook efficiently.

According to the structure in which the power feed port for radio waves is provided on the bottom wall of the heating chamber and the rotating mounting table is provided outside the power feeding port, the radio waves emitted from the power feeding port are agitated by the rotating mounting table, and the food placed on the saucer is evenly distributed. Can be heated using radio waves.

Further, since there is no need for an exposed heater inside the heating chamber, the effective volume inside the heating chamber is increased, and the usability can also be improved, such as easy cleaning.

EXAMPLE Hereinafter, a heating cooking apparatus according to an example of the present invention will be explained with reference to the drawings.

FIG. 1 is a front cross-sectional view showing the structure of a cooking device according to the present invention. In FIG. 1, an upper heater 13 is provided in close contact with the outer surface of an upper wall surface 12 constituting a heating chamber 11. As shown in FIG. Furthermore, a magnetron 14 as an oscillator is provided, and a waveguide 16 is provided.
The structure is such that radio waves are irradiated into the heating chamber 11 from a power supply port 1θ provided on the bottom wall surface of the heating chamber 11 through the power supply port 1θ.

A rotary mounting table 17 is provided above the power supply port 16, and is rotated by a drive motor 18 to stir the radio waves. The saucer 19 is made of a high-frequency transmitting material such as ceramic or heat-resistant glass, and is formed into a rectangular shape, and placed on a shelf 20 provided on the side wall of the heating chamber 11 . Food 21, which is an object to be heated, is placed in the saucer 19. Further, 22 is a heat insulating material for shielding the heat of the upper heater 13.

FIG. 2 is an exploded perspective view showing the configuration of the planar heater 13 of the cooking device of the present invention. In FIG. 2, a heating element 26 is wound around a winding frame 26 made of a heat-resistant insulator such as mica. 27 is a lead wire, which is connected to the heating element 26;
It is insulated with guy 728 etc.

Insulating plates 29 made of a heat-resistant insulating material such as mica are provided on the upper and lower surfaces of the winding frame 25, and the heating element 26 is sandwiched between the insulating plates 29. A metal holding plate 3o is provided on the upper surface of the insulating plate 29 and is fixed to the heating chamber body with screws.

With the planar heater configured in this manner, even if the food 21 is brought close to the heater, it can be baked evenly and uniformly.

Effects of the Invention As described above, the heating cooking apparatus according to the present invention provides the following effects.

(1) By forming the saucer on which the food is placed into a rectangular shape using a high-frequency transmitting material such as ceramic, a large amount of food can be heated by radio waves and heaters at one time. Furthermore, radio wave heating can heat food from the inside, and heater heating can heat food from the outside, making it possible to efficiently cook a large amount of food in a short time.

(Tactfully, by using a planar heater consisting of a heating element and a heat-resistant insulator, food can be brought close to the heater, and the food can be placed on a shelf installed on the side wall of the heating chamber and heated by the heater.) , you can quickly and evenly darken the area.

(3) By providing a power supply port for radio waves on the bottom wall of the heating chamber and a rotating mounting table above the power supply port, the radio waves irradiated from the power supply port are agitated by the rotating mounting table, and the radio waves emitted from the power supply port are agitated by the rotating mounting table, and the radio waves are agitated in the saucer placed on the shelf. Food can be evenly heated by radio waves.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of a heating cooking device according to an embodiment of the present invention, Fig. 2 is an exploded perspective view showing the configuration of a heater of the heating cooking device, and Fig. 3 is a front sectional view of a conventional heating cooking device. It is. 13...Top heater, 16...Power supply port,
17...Rotary mounting table, 19...Saucer. Name of agent: Patent attorney Toshio Nakao and 1 other person f3
---° Ehitai & --- Bud (i-den mouth Figure 2 Figure 3

Claims (2)

[Claims] (1) A heating chamber that stores the object to be heated, a high-frequency generator that supplies high-frequency power into the heating chamber through a power supply port, an electric heating device that increases the temperature inside the heating chamber, and a saucer on which the object to be heated is placed. The electric heating device is a planar heater arranged on almost the entire wall surface of the heating chamber, and the saucer is made of a high-frequency transmitting material, and the cooking device is configured to be heated by being installed on a shelf on the side wall of the heating chamber. (2) The heating cooking device according to claim 1, wherein a power supply port is provided on the bottom wall of the heating chamber, and a rotary mounting table is provided above the power supply port.