JPS62123226A - High-frequency heating cooker - Google Patents

Abstract

PURPOSE:To permit to select a heating method suitable for a cooking food and effect the heating of the food by the operation of one key to facilitate the handling of the titled cooker by a method wherein an alcohol sensor and a humidity sensor are provided in an exhaust duct provided in an oven and the difference of the changing values of outputs of both sensors is detected to discriminate the kind of the food stuff. CONSTITUTION:An exhaust duct 11, attached to an oven 1, is provided with an alcohol sensor 12 and a humidity sensor 13 to detect gas generated from a food heated by microwaves generated by the oscillation of a magnetron 2. The signals of both sensors are sent into a main control circuit 7 through a gas sensor control circuit 14 to operate the difference of output values, discriminate the food and output a control signal. When the food to be cooked is decided that it is sake, the main control circuit 7 determines a heating time based on a signal detected by a weight sensor 4 while the food is heated by normal sensor control in case the food is decided that it is a generally used food.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a high-frequency heating cooking device that automatically determines whether to warm alcoholic beverages or to heat food and to efficiently cook the food.

[Technical background of the invention and its problems]

Some high-frequency cooking devices of this type incorporate gas sensors and microcomputers that detect gases emitted by food, allowing for automatic cooking, but this method has limitations on the types of foods that can be cooked automatically.

In other words, the above-mentioned type of high-frequency heating cooking device requires two keys, one for sake and alcohol and the other for heating, and it is extremely troublesome for Ude to use these keys properly. There is one point.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a high-frequency heating cooking device that can heat alcohol J3 and food using two keys.

[Summary of the invention]

The present invention provides an alcohol sensor and a humidity sensor in the exhaust duct provided in the oven, detects the difference in the output change value of the alcohol sensor and the humidity sensor, determines the type of food based on this detected value, and properly controls the food. It is made so that it can be cooked in various ways.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an oven of a high-frequency heating cooking device, and a magnetron 2 is provided on the side plate 1a of the oven 1, and a food shelf board 3 is provided on the bottom plate 1b. A weight sensor 4 is attached to the food shelf board 3 to detect the weight of food placed on the food shelf board 3, such as sake-filled tokkuri 5.

In other words, the signal from the weight sensor 4 is transmitted to the weight sensor control circuit 6.
The signal is sent to the main control circuit 7 via the main control circuit 7, where it is compared and calculated, and the relay 9 provided between the magnetron 2 and the power source 8 is controlled to open and close, thereby controlling the operation of the high voltage transformer 10.

On the other hand, an exhaust duct 11 attached to the oven 1 is provided with an alcohol sensor 12 and a humidity sensor 13 to detect gas emitted from food heated by microwaves generated by the oscillation of the magnetron 2. The signals from the alcohol sensor 12 and humidity sensor 13 are transmitted to the gas sensor control circuit 17! J: is sent to the main control circuit 7 via I. Main control circuit 7 above
As shown in FIGS. 2 and 3, the difference between the output value of the alcohol sensor 12 and the output value of the humidity sensor 13 is calculated and a control signal is generated.

In other words, if the food placed on the food shelf board 3 is alcohol, the second
As shown in the figure, the value of the humidity sensor 13 hardly changes, and the value of the alcohol sensor 12 changes, and if the difference in the output change value reaches a predetermined value or more after 16 seconds, it is determined that it is alcohol. That will happen.

Also, if the food placed on the food shelf board 3 is a general food,
As shown in FIG. 3, the value of the humidity sensor 13 and the value of the alcohol sensor 12 change in the same way, and there is almost no difference between the values. In this case, the food is determined to be a general food.

When the main control circuit 7 determines that the food to be cooked is alcohol, the main control circuit 7 determines the heating time based on the signal detected by the weight sensor 4 and energizes the magnetron. Become.

Furthermore, if it is determined that the food to be cooked is a general food, it will be heated by normal sensor control.

In FIG. 1, reference numeral 15 is a keyboard, and 16 is a display section.

〔Effect of the invention〕

As described above, according to the present invention, a heating method suitable for food can be selected using an alcohol sensor and a humidity sensor. Therefore, it has the effect of being easy to use for the user.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of a high-frequency heating cooking apparatus according to the present invention, FIG. 2 is a characteristic diagram of the output voltage of alcoholic beverages, and FIG. 3 is a characteristic diagram of the output voltage of general foods. DESCRIPTION OF SYMBOLS 1... Oven, 2... Magnetron, 7... Main control circuit, 11... Exhaust duct, 12... Alcohol sensor, 13... Humidity sensor, 14... Gas sensor control circuit.

Claims (1)

[Claims] In a high-frequency cooking device, a weight sensor is installed on a food shelf installed in the oven, and the signal from this weight sensor is sent to the main control device to control the oscillation of a magnetron installed in the oven. A high-frequency cooking device characterized in that an alcohol sensor and a humidity sensor are provided in a duct, and food is determined by detecting a difference in output change values of the alcohol sensor and the humidity sensor.