JPH04122A - Complex heating and cooking device - Google Patents

Abstract

PURPOSE:To prevent a reflection plate from being stained, make a small-sized cooking device and perform a well-balanced and safe grill cooking of food by a method wherein air generated by a cooling fan for a high frequency oscillator is guided into a heating chamber and an electrical heater is positioned in an aeration passage. CONSTITUTION:An electrical heater 4 is disposed at the outside upper part of a heating chamber 2. Infra-red rays generated by the electrical heater is radiated through an opening 5 disposed at the upper wall of the heating chamber 2 into the heating chamber 2. Air generated by a cooling fan 3 cools a high frequency oscillator 1, thereafter the air is guided through an aeration passage 8, enters from an opening 7 of a reflection plate 6, flows between the electrical heater 4 and the reflector plate 6, heated by the electrical heater 4. The hot air enters from an opening 5 of the upper wall of the heating chamber 2 into the heating chamber 2. Temperature in the heating chamber is uniformly increased and the temperature of atmosphere for a food is increased, resulting in that even if a food having non-uniform thickness is cooked in a grill, only a surface having a thick thickness is not scorched, but the entire surface if uniformly scorched and the heat reaches the food and then the food can be finished to a well-grilled state.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a composite cooking device capable of heating and cooking using both an electric heater and radio waves.

The conventional composite heating cooker will be explained in more detail than the conventional technology in the second part.

Conventionally, in a composite heating cooker that has both the grill function using the electric heater 4 and the microwave oven JR function using radio waves, the cooking mode using the grill function (hereinafter referred to as "Guru cooking") or the grill function and the microwave oven function In the cooking mode, which is operated simultaneously or alternately, the cooling fan 3 is operated to cool the parts in the electric room or to lower the temperature of the exterior part of the cooker, as shown in FIG.

The air from the cooling fan 3 cools the electrical parts, etc., and then flows into the heating chamber 2.
The structure is such that the steam emitted from the food to be cooked 10 is discharged to the outside.

Problems to be Solved by the Invention Originally, grill cooking involves grilling the surface of food using strong infrared rays emitted from an electric heater. In order to do this, the ambient temperature of the food must be raised to a certain degree.

However, with the above conventional configuration, when air is introduced into the heating chamber after cooling the electrical components during grill cooking, the heating chamber is cooled down, which lowers the ambient temperature of the food, making grill cooking difficult and slowing down the cooking process. The problem was that it took a long time.

Also, in order to prevent the ambient temperature of the food from lowering, there is a method of closing the air intake of the heating chamber with a shutter when grilling so that the air after cooling the electrical parts does not enter the heating chamber. In some cases, it is not possible to forcefully exhaust the steam emitted from the food, so a film of steam forms on the surface of the food.This film makes it difficult for the food to absorb infrared rays, making grilling difficult. Ta.

The present invention is intended to solve the above-mentioned conventional problems, and an object of the present invention is to provide a composite heating cooker that can grill food in a well-balanced and safe manner.

Means for Solving the Problems In order to achieve this object, the composite heating cooker of the present invention has the following features:
A heating chamber for cooking food, a high-frequency oscillator that supplies radio waves to the heating chamber, an electric heater installed at the top of the heating chamber, a reflector that reflects infrared rays from the electric heater into the heating chamber, and a high-frequency oscillator. When cooled, the electric heater is configured to have a ventilation path that guides air from a cooling fan into the heating chamber, and the electric heater is located within the ventilation path.

Operation With the above-described configuration, the air after cooling the electrical components is heated by the electric heater provided in the ventilation passage and converted into hot air. Therefore, conventionally, cold air entered the heating chamber to cool the heating chamber, but when hot air enters the heating chamber, the temperature in the heating chamber increases uniformly, and the ambient temperature of the food increases.
Even when grilling food that is uneven in thickness, only the surface of the thickest part will be scorched (the whole surface will be scorched evenly.Also, as the ambient temperature increases, only the surface of the food will be scorched). This allows the heat to reach the inside of the food, allowing it to be grilled just right.

EXAMPLE Hereinafter, a composite heating cooker according to an example of the present invention will be explained with reference to FIG. In the figure, l is a high frequency oscillator for supplying radio waves into the heating chamber 2, and is configured to be cooled by a cooling fan 3. Reference numeral 4 denotes an electric heater, which is installed at the upper part of the outside of the heating chamber 2, and the infrared rays generated thereby are irradiated into the heating chamber 2 through an opening 5 provided in the earthen wall of the heating chamber 2.

Reference numeral 6 denotes a reflecting plate that efficiently reflects infrared rays emitted by the electric heater 4 into the heating chamber 2.

The reflecting plate 6 is provided with an opening 7.

After cooling the high-frequency oscillator 1, the air generated by the cooling fan 3 is guided through the ventilation path 8, enters through the opening 7 of the reflection plate 6, flows between the electric heater and the reflection plate 6, is heated by the electric heater 4, and becomes hot air. After the opening 5 in the upper wall of the heating chamber 2
Enter into the heating chamber 2.

The food to be heated 10 is placed on the food table 9 by an electric heater 4.
A slatted net 11 is placed thereon to bring it closer to the ground. The food table 9 is rotationally driven by a turntable motor 12.

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

(11 The air after cooling the electrical parts is heated by an electric heater and turned into hot air before being put into the heating chamber.
It is possible to remove the steam film on the food surface and raise the ambient temperature of the food, and for this purpose, in combination with the infrared rays irradiated from the electric heater, the entire food including the sides and center of the food can be grilled in a well-balanced manner. I can do it.

(2) By blowing air between the reflector and the electric heater, it is possible to prevent oil, etc. from the food from adhering to the reflector, and to prevent the reflector from getting dirty. Initial cooking performance can be maintained without reducing efficiency.

(3) By blowing air between the reflector and the electric heater, the temperature of the reflector can be lowered.

Therefore, even if the distance between the top surface of the cooker exterior and the reflective plate is reduced, the temperature of the top surface of the exterior can be lowered.
The cooker can be made smaller and dangers such as burns can be prevented.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a combined heating cooker according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of a conventional combined heating cooker. 1...High frequency oscillator, 2...Heating chamber,
3... Cooling fan, 4... Electric heater, 6... Reflector, 8... Ventilation duct. Agent's name: Patent attorney Shigetaka Awano ``Nami ``Nami f&Dairy heating room LP fan 彎pjiitan shotkari''

Claims (4)

[Claims] (1) A heating chamber for cooking food, a high-frequency oscillator that supplies radio waves to the heating chamber, an electric heater provided at the top of the heating chamber, and a reflector that reflects infrared rays from the electric heater into the heating chamber. a cooling fan that cools the high-frequency oscillator; and a ventilation path that guides air from the cooling fan into the heating chamber, and the electric heater is located in the ventilation path. (2) A claim in which the cooling fan operates both during cooking using only the electric heater and when heating simultaneously or alternately using radio waves and the electric heater, and sends air flowing over the surface of the electric heater into the heating chamber. 1. The composite heating cooker according to 1. (3) A configuration in which a part of the ventilation passage is formed by a reflection plate, and the wind that enters the ventilation passage from an opening provided in a part of the reflection plate flows between the reflection plate and the electric heater. The composite heating cooker according to claim 1. (4) The composite heating cooking according to claim 1, wherein the hot air from the cooling fan flows into the heating chamber through an opening in the upper wall of the heating chamber provided for radiating infrared rays from the electric heater into the heating chamber. vessel.