JPS609212B2 - Cooking device - Google Patents

Description

[Detailed Description of the Invention] Originally, in this type of cooking device, during high-frequency heating cooking using a magnetron, water vapor from the cooked food was generated in the heating chamber, which could impair the flavor or fog the door glass. accompanied by the inconvenience of

Accordingly, in order to eliminate such inconvenience, the heating chamber is equipped with a blower fan that guides outside air through a ventilation path, and during the high-frequency heating cooking, the fan is operated to generate air blowing into the chamber. A type of steam venting that removes the water vapor in the chamber is known, but this steam venting can be performed by other methods such as browning heat cooking using a magnetron and a heat source, or high-temperature heating using the heat source. It is not necessary during cooking, and therefore the ventilation path is generally equipped with a damper to control opening and closing, as shown in Japanese Utility Model Publication No. 51-8196.
In this case, the control means is relatively troublesome. The object of the present invention is to obtain a device that does not have the above-mentioned disadvantages, and includes a heating chamber provided with an exhaust port in the cooking device main body, a magnetron for high-frequency heating cooking of food in the heating chamber, and a It is equipped with a gas burner or other heat source that cooks things at high temperature, a circulation fan that circulates hot air from the heat source within the heating chamber, and a blower fan that introduces outside air into the heating chamber through a ventilation path, and the blower fan In the type that cools the magnetron, the end of the ventilation passage is closed at a position where the positive pressure of the circulation fan of the heating chamber is applied, and the ventilation passage is provided with a closure that communicates with the outside of the heating chamber. Become. An example of implementing the present invention will be explained with reference to the attached drawings.

In the drawings, reference numeral 1 indicates a cooking device main body, which includes a heating chamber 2 within the main body 1, a magnetron 4 for high-frequency heating cooking of the food 3 in the heating chamber 2, and a gas burner for cooking the food 3 at high temperature. a circulation fan 6 comprising another heat source 5 and further circulating hot air from the heat source 5 within the heating chamber 2;
A ventilation fan 8 for removing steam is provided to introduce outside air into the chamber 2 through a ventilation path 7 in order to remove water vapor generated in the chamber 2 during the high-frequency heating cooking. In the illustrated example, hot air is generated by the heat source 5 in a chamber 9 on the lower side of the heating chamber 2, is guided into the heating chamber 2 through an intake port 10, and is discharged to the outside through an exhaust port 11. I made it.

In the drawing, 12 indicates the front door of the heating chamber 2. Furthermore, the blower fan 8 also functions as a cooling fan for cooling the magnetron 4 and others, and as shown in FIG. The starrer 15 is inserted into the heating chamber 2 through the opening row 13 of the heating chamber 2, and the starrer 15
After cooling the magnetron 4, the outside air is guided into the heating chamber 2 on the downstream side thereof, and a part of the air acts on the blade 16 to drive it, The air passage 7 is configured to be discharged to the outside from a closed opening (not shown) on the downstream side, and furthermore, the air passage 7 extends into the control chamber 17 above the heating chamber 2 on the upstream side of the fan 8, and the members in the chamber 17 are It also allows for cooling. Note that the intake low 0, the exhaust port 11, and the closing port 13 described above are provided with punching metal or other radio wave sealing material. Incidentally, the opening row 3 was applied to the front upper surface of the heating chamber 2 where the positive pressure of the circulation fan 6 was applied while it was in operation. To explain its operation,
During high-frequency heating cooking using the magnetron 4, the blower fan 8 is activated and the circulation fan 6 is deactivated.Therefore, the inside of the heating chamber 2 is at a relatively low pressure, and the fan 8 causes the air to flow through the ventilation path 7. Outside air is introduced to remove steam. Next, considering browning heat cooking by simultaneous operation of magnetron 4 and heat source 5, in this case both fans 8
, 6. Thus, due to the positive pressure inside the heating chamber 2 due to the operation of the circulation fan 6, the amount of air blown into the chamber 2 by the fan 8 is greatly reduced. In this case, the ventilation path 7
The outside air guided through the side wall 14 flows through the blade 16 and flows out from the closing port on the downstream side, so that the cooling effect continues. Next, during high-temperature cooking using the heat source 5, the circulation fan 6 is activated, but in this case, the blower fan 8 can be activated or deactivated as desired, and depending on its activation, the inside of the heating chamber 2 is Because the pressure is relatively high due to the operation of the circulation fan 6,
The amount of air blown into the chamber 2 by the fan 8 is greatly reduced, and most of the blown air is discharged to the outside of the heating chamber through the opening that communicates with the outside of the heating chamber. In this way, according to the present invention, magneto. In a cooking device that introduces outside air that has been cooled into a heating chamber and exhausts water vapor generated during high-frequency heating cooking using a magnetron from an exhaust port, the ventilation path is located at a position where the positive pressure of the circulation fan of the heating chamber is applied. In addition to opening the end of the □, we also provided a gate in the ventilation passage that connects to the outside of the heating chamber, so that the air can be introduced into the heating chamber by the blower fan during high-frequency heating cooking using the magnetron, and for cooling the magnetron. Japanese Patent Laid-Open No. 54/1983 discloses a method of reducing the flow of air into the heating chamber by the blower fan when cooking is performed using a heat source while the blower fan is being driven. There is an effect that a damper and its control means as seen in Japanese Patent No. 104961 are not required, and a cooking device having a simple structure and easy handling can be obtained.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of one example of the present device, and FIG. 2 is a cutaway plan view of a portion thereof. 1... Cooker body, 2... Heating chamber, 3
...Cooked food, 4...Magnetron, 5...
...Heat source, 6...Circulation fan, 7...
...Ventilation path, 8...Blower fan. Figure 1 Figure 2

Claims (1)

[Claims] 1 A heating chamber equipped with an exhaust port in the cooking device main body, a magnetron for high-frequency heating cooking of the food in the heating chamber, and a gas burner or other heat source for cooking the food at high temperature;
The heating chamber includes a circulation fan that circulates hot air from the heat source in the heating chamber, and a blower fan that guides outside air into the heating chamber through a ventilation path, and cools the magnetron with the blower fan. The air passage is opened at a position where the positive pressure of the circulation fan is applied, and the air passage is provided with an opening that communicates with the outside of the heating chamber.