JPS5927844Y2 - rice cooker display device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a rice cooker that can control the amount of heating according to the amount of rice cooked, and particularly aims to provide a rice cooker that will not fail in cooking even if the user forgets to set the amount of rice cooked. .

Traditionally, rice cookers have been proposed that can control the heating amount according to the amount of rice cooked, but if you forget to set the amount of rice cooked, or there is a large difference between the amount of rice cooked and the amount of rice set at the time of last use, the rice may burn. , there was a risk that it would turn into a porridge-like mess.

The present invention solves the drawbacks of the conventional rice cooker mentioned above, and one embodiment of the present invention will be described below with reference to the accompanying drawings.

First, the outline of this embodiment will be explained with reference to FIG.

In FIG. 1, 1 is a rice cooking switch, 2 is a rice cooking amount setting means for setting the amount of rice to be cooked, 3 is a heating amount control means composed of semiconductor switching elements, etc., and 4 is a heating means such as a heater for heating a rice cooking container. , 5 is a temperature detection means constituted by a temperature sensing element such as a thermistor for detecting the temperature of the rice cooking container, 6 is a display control means, and 7 is a display means consisting of an LED lamp, a teaching display tube, etc. for displaying the amount of cooked rice. .

Next, the operation will be explained.

First, when the rice cooking switch 1 is turned on, the display control means 6 controls the display on the display means 7 according to the amount of cooked rice set by the rice amount setting means 2.

Further, the heating amount control means 3 is driven by the output of the display control means, and controls the amount of heating by the heating means 4.

The temperature of the rice cooking container heated by the heating means 4 is determined by the output of the temperature detecting means 5 which is inputted to the heating amount control means 3, which controls the amount of heating by the heating means 4.

That is, when the temperature of the rice cooking container rises and reaches the rice cooking completion temperature, the heating amount control means 3 stops the heating by the heating means 4, and the rice cooking is completed.

Note that when the rice cooking switch 1 is turned on and the rice cooking amount is not set in the rice cooking amount setting means 2, the display on the display means 7 is changed by the output of the display control means 6 to the maximum setting rice cooking amount of the rice cooking amount setting means 2. Set the amount of rice to be cooked between the minimum setting amount of rice.

In addition, the output of the display control means 6 drives the heating amount control means 3, and similarly sets the amount of heating by the heating means 4 to an intermediate amount of rice between the maximum setting rice amount and the minimum setting rice amount of the rice cooking amount setting means 2. The amount of heating should be adjusted accordingly.

The output of the display control means 6 is a binary code with a value corresponding to the amount of cooked rice, and is manually input to the display means 7 and the heating amount control means 3.

Next, a specific configuration of the rice cooking amount setting means 29 display control means 69 displaying means 7 in the above embodiment will be described with reference to FIG. 2 for the case where the maximum set rice cooking amount is 10 cups.

In FIG. 2, the output of a decimal counter 15, which receives the voltage across a resistor 8 connected in series with the rice cooking amount setting means 2, which is a push switch, is output by an ANDOR circuit 11.
It is manually inputted to the decoder driver 13 via the AND circuit 12 and displays on the display tube 14.

The output of the decimal counter 15 is the amount of cooked rice (0 to 10 cups)
It becomes the binary code of the value corresponding to .

For example, if the rice cooking amount is not set (0 go), (0
, 0, 0, 0), and (1, 0, 1, 0) in 10 cases.

In addition, this output is simultaneously input to the heating amount control means 3,
The heating means 4 is controlled to a predetermined heating amount (corresponding to the amount of cooked rice) based on the binary code.

Now, when the rice cooking switch is turned on and the rice cooking amount is not set in the rice cooking amount setting means 2, the Q output of the D latch 9 is at the L level, and the Q output is at the H level.

Since the DC power supply voltage is applied to the ANDOR circuit 11 via the resistor 10, the output is at H level.

Further, the output of the AND circuit 12 is at L level.

Therefore, the decoder driver 13 receives a manual input of (0, 1, 0, 1), and the display tube displays 5.

That is, 5 cups of rice, which is I of the maximum set rice cooking amount of 10 cups, is performed.

Thereafter, when the rice cooking amount setting switch 2 is turned on, the output of the D latch 9 is reversed, and the output of the counter 15 is manually input to the encoder driver 13.

Since the counter 13 counts and outputs the number of times the rice cooking amount setting switch 2 is turned on, the set rice cooking amount is displayed on the display tube 14.

As is clear from the above explanation, according to the present invention, when the rice cooking amount is not set, the rice cooking amount display and the heating amount are the same as the maximum and minimum rice cooking settings as in conventional rice cookers. The amount of rice is set in the middle of the amount, and even though the maximum amount of rice is being cooked, the cooking time is extremely long if the minimum amount of rice is used to cook the rice, and the rice is not heated enough and the core is broken. If you cook rice with the maximum amount of heat when cooking the minimum amount of rice, the cooking time becomes extremely short, and the rice starch is not sufficiently gelatinized, resulting in poor digestibility. This has the effect of eliminating mistakes such as ending up with bad food.

[Brief explanation of the drawing]

FIG. 1 is a system block diagram of a rice cooker showing an embodiment of the present invention, and FIG. 2 is an electrical circuit diagram of the main parts of the rice cooker. 2... Rice cooking amount setting means, 3... Heating amount setting means, 4... Heating means, 6... Display control means, 7... ...Display means.

Claims (1)

[Scope of utility model registration request] a heating means for heating a rice cooking container; a rice cooking amount setting means for setting the rice cooking amount; a display means for displaying the cooking amount; and a display control means driven by the rice cooking amount setting means and changing the display by the display means; and heating amount control means that is driven by the output of the display control means and controls the amount of heating by the heating means, and when the rice cooking amount is not set in the rice cooking amount setting means, the display control means A display device for a rice cooker, characterized in that a rice cooking amount intermediate between a maximum setting rice cooking amount and a minimum setting rice cooking amount of a rice cooking amount setting means is outputted as a setting rice cooking amount.