JPH0661305B2 - Cooking device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cooking device such as a rice cooker having a steaming function.

In the conventional cooking device, when steam cooking is performed, heating is performed so that water boils and steam is generated, and the steam generated is used for cooking. It was general that the cooking was performed and the cooking was terminated after the cooking time had elapsed.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-described conventional cooker, steamed cooking is performed after heated water boils and steam is generated, but when the water in the container is exhausted, steam cooking cannot be performed. However, there is a problem that the temperature of the cooker body rises abnormally and becomes dangerous.

An object of the present invention is to provide a cooker that solves such problems.

Means for Solving the Problems In order to solve the above problems, the cooking device of the present invention is a container for containing food and water, a starting means for starting cooking, and a heating means for heating and cooking the food, When a temperature detecting means for detecting the temperature in the container, a timer means for starting the timekeeping of steam cooking when the temperature detecting means detects that the water has boiled, and a predetermined time by the timer means has elapsed Or a control means for controlling the heating means so as to finish cooking when the temperature detected by the temperature detection means exceeds a predetermined temperature.

Action According to the above-mentioned configuration, when the cooking means is heated by the heating means to generate steam, the timer means starts the time measurement of steam cooking, and the timer means reaches the cooking end time, or the water in the container is reached. When the temperature detected by the temperature detection means exceeds a predetermined temperature, the control means controls the heating means to end the cooking.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a cooking device according to an embodiment of the present invention, in which 1 is a starting means for starting cooking,
Reference numeral 2 is a container for containing food and water, 3 is heating means for heating and cooking food, 4 is temperature detecting means for detecting the temperature in the container 2, and 5 is water boiling by the temperature detecting means 4. When the temperature is detected, the timer means for starting the time measurement of steam cooking, 6 is cooked when the predetermined time by the timer means 5 elapses or when the temperature detected by the temperature detecting means 4 exceeds the predetermined temperature. It is a control means for controlling the heating means 3 so as to finish the above.

FIG. 2 shows a concrete circuit diagram of the cooking device in one embodiment of the present invention. In FIG. 2, 10 is a start switch for starting cooking, and 11 is a heater for heating the food. , 12 are relays for energizing the heater 11, and have a relay coil 12a and a relay contact 12b. 13 is a relay drive unit for driving the relay 12, 14 is a thermistor for detecting the temperature in the container 2,
Reference numeral 15 is an A / D for A / D converting the signal of the thermistor 14.
D converter, 16 is the start switch 10 and the A /
An input unit for inputting the signal of the D converter 15, 17 is an output unit for opening and closing the relay contact 12b constituting the relay 12 to energize the heater 11, and 18 is a signal input from the input unit 16. A control unit that controls the output unit 17, and 19 is a microcomputer including the input unit 16, the output unit 17 and the control unit 18.

FIG. 3 is a flow chart showing the operation of the microcomputer 19, and the operation will be described based on this flow chart.

First, in step 21, the heat power is set to zero. Next, in step 22, it is determined whether or not the start switch 10 is pressed, and steps 21 to 22 are executed until it is pressed.
repeat. If the start switch 10 is pressed, the routine proceeds to step 23, where the maximum heating power is set for cooking preparation and boiling the water in the container 2. In step 24, the temperature in the container 2 detected by the thermistor 14 is input, and in step 25, it is determined whether or not the boiling temperature has been reached. If the boiling temperature has not been reached, the process returns to step 23 and step 2
Repeat step 3 to step 25. On the other hand, if the boiling temperature is reached in step 25, the process proceeds to step 26, the heating power for steam cooking is set, and in step 27, the timer means 5 starts the time measurement of steam cooking. Then, in step 28, it is determined whether or not a predetermined time required for cooking by the timer means 5 has elapsed, and if it has not yet elapsed, the process proceeds to step 29. In this step 29, the temperature in the container 2 detected by the thermistor 14 is input, and in step 30, it is determined whether or not the water in the container 2 has run out and the temperature has risen to a predetermined temperature that is judged to be abnormal, and the temperature is not yet predetermined. If the temperature has not been reached, the process returns to step 26 and steps 26 to 30 are repeated. In step 28, timer means 5
Has passed a predetermined time, or step 30
If the temperature reaches the predetermined temperature in step 31, the process proceeds to the ending step of step 31.

Effects of the Invention According to the present invention, as is clear from the description of the above embodiments,
Even if the water in the container runs out during steam cooking, not only can the temperature be prevented from rising abnormally, but if water is added and cooking is restarted, steam cooking will be resumed. It can be continued.

[Brief description of drawings]

FIG. 1 is a block diagram of a cooking device showing an embodiment of the present invention,
FIG. 2 is a concrete circuit diagram of the cooking device, and FIG. 3 is a flowchart showing the operation of the microcomputer in the cooking device. 1 ... Starting means, 2 ... Container, 3 ... Heating means, 4 ...
Temperature detecting means, 5 ... Timer means, 6 ... Control means, 1
9 ... Microcomputer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinzo Kon No. 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. In the company

Claims (1)

[Claims] 1. A container for containing food and water, a starting means for starting cooking, a heating means for heating and cooking the food, a temperature detecting means for detecting the temperature in the container, and this temperature detection. When the means detects that the water has boiled, a timer means for starting the timekeeping of steam cooking and a predetermined time by this timer means, or the temperature detected by the temperature detection means exceeds a predetermined temperature. A cooking device comprising: a control means for controlling the heating means so as to sometimes finish cooking.