JPS62159622A - Electric rice 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 Industrial Application The present invention relates to an electric rice cooker used in general households.

Conventional technology Traditionally, when cooking rice, you measure the amount of rice you want to cook, wash the rice with water, and then add enough water to the amount of rice in an electric rice cooker, such as an inner pot. Cooking rice is measured using the water level scale shown in the figure.

With this method, if you forget the amount of rice you have measured, make a mistake in measuring it, or read the water level scale incorrectly, you will fail to cook the rice, and the rice will be hard when cooked. It was a very unkind experience, with people only realizing they had made a mistake when it was too soft or too soft.

Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide an electric rice cooker with a simple configuration that notifies you of the inconvenience of water level during rice cooking before cooking.

Means for Solving the Problems The present invention solves the above problems by focusing on the difference in the specific gravity of rice and water and measuring the specific gravity of the composite of rice and water contained in the inner pot. The system determines the mixing ratio and, if the ratio is inconvenient, will notify or display the information before cooking the rice.

As a concrete means of measuring specific gravity, it is sufficient to detect the volume and weight of the composite.

In addition, since the shape of the inner pot is fixed as a means for detecting the volume, the water level may be used instead. It is possible to understand whether the rice is cooked properly and to prevent rice cooking failures.

The embodiment diagram is a block diagram showing an embodiment of the electric rice cooker of the present invention.

In the figure, 1 is an inner pot that contains 2 rice and 3 water.

Further, a heater 4 and a temperature sensor 5 are arranged adjacent to the inner pot 1, and a control circuit 6 is configured to perform a normal rice cooking operation.

Furthermore, a water level detection device 7 and a weight detection device 8 are arranged close to the inner pot 1 and connected to a control circuit 6, from which a notification device 9 is connected.

This operation will be explained according to the diagram. First, the user washes rice 2, stores it in the inner pot 1, measures the amount of water using a scale, and puts it into the rice cooker main body (not shown). After being set, the water level detector 7 measures the water level of the water 3, and the weight detector 8 measures the total weight of the inner pot 1, rice 2, and water 3, and sends information to the control circuit 6, respectively. The control circuit 6 calculates the volume of the composite of rice 2 and water 3 based on the water level information from the water level detection device T, taking into consideration the predetermined shape of the inner pot 1.

Furthermore, the weight of the composite of rice 2 and water 3 is calculated based on the weight information from the weight detection device 8 and the predetermined weight of the inner pot 1.

Then, the specific gravity of the composite is calculated from the volume and weight of the composite, and if it deviates from the appropriate range given in advance to the control circuit 6, a warning is given to the user through the notification device 9.

When the specific gravity of the composite is appropriate, rice cooking is started by the heater 4, and the rice cooking operation is controlled by the temperature sensor S to properly cook the rice.

Effects of the Invention As described above, according to the present invention, it is possible to properly judge the ratio of rice and water before cooking rice, thereby preventing rice cooking failures, which is extremely useful in practice.

[Brief explanation of drawings]

The figure is a block diagram showing the configuration of an electric rice cooker in one embodiment of the present invention. 1...Inner pot, 2...Rice, 3...
・Water, 4... Heater, 5... Temperature sensor, 6... Control circuit, 7... Water level detection device, 8... Weight detection device, 9...
Notification device.

Claims (4)

[Claims] (1) An inner pot for storing a food to be cooked such as rice, the food to be cooked and water, a heater for heating the inner pot to cook the food to be cooked, and a heater housed in the inner pot. weight detection means for detecting the combined weight of the cooked food and the water; volume detection means for detecting the combined volume of the cooked food and the water; and a display for notifying the user. means or notification means, estimates the mixing ratio of the rice to be cooked and the water based on the information from the weight detection means and the volume detection means, and displays information on the mixing ratio by the display means or notification means. An electric rice cooker that makes the user aware of the following. (2) The electric rice cooker according to claim 1, wherein the weight detection means detects the combined weight of the rice to be cooked, water, and inner pot. (3) The electric rice cooker according to claim 1, wherein the volume detection means detects the water level in the inner pot. (4) The electric rice cooker according to claim 1, wherein the display means or the notification means is a warning means that operates only when the mixing ratio of the food to be cooked and the water is inappropriate.