JPS62133912A - Jar 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 a jar rice cooker for use in general households.

2. Description of the Related Art A conventional jar rice cooker of this type is equipped with a rice cooking means for cooking rice and keeping it warm, and a heat retention display means that lights up when the rice cooking means is in a warming operation, such as an LED. When the means finishes cooking and shading the rice, the warming display means lights up, and the user knows that the cooking and shading have finished and the rice is ready at 9, and that the rice is now warm.

Problems to be Solved by the Invention In such a conventional configuration, when the rice is kept warm, the keep warm display means lights up to notify the user that the rice is kept warm. The display does not change even if more than 10 hours have passed since the rice was finished and the rice has become perishable.

Therefore, if the user makes a mistake, or if someone other than the user who cooked the rice uses the rice, there is a problem that the rice will end up eating spoiled rice.

An object of the present invention is to provide a jar rice cooker that solves these problems.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a rice cooking means that performs operations for cooking rice and keeping the rice warm, and a method for starting measurement after a certain period of time from the time when cooking and steaming the rice are completed. The rice cooker is composed of a timer means for outputting an output, and a water keeping means, which is made of an LED or the like, and lights up when the rice cooking means is in a warming operation, and flashes when the timer means outputs.

According to the above structure, when the rice cooking means finishes cooking and steaming the rice, the warming state display means lights up to notify the user that the rice has entered the warming state, and at the same time, the timer means starts measuring. Start, and after a certain period of time,
The timer means outputs when it is time for the rice to perish.
The heat retention status display means can flash to notify the user that the rice is becoming spoiled easily.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 shows a block diagram of a jar rice cooker according to an embodiment of the present invention. Reference numeral 1 denotes rice cooking means, and this rice cooking means 1 includes a heater and a relay.

The control unit performs cooking and warming operations. Reference numeral 2 denotes a timer means which starts measuring at the same time as the rice cooking means 1 starts the heat keeping operation, and outputs the measurement to the heat keeping state display means 3 after a certain period of time. The heat retention state display means 3 is composed of an LED or the like.
When the rice cooking means 1 enters the warming operation, it lights up, and when the timer means 2 outputs an output, it changes to blinking to alert the user. FIG. 2 is a circuit diagram of a jar rice cooker according to an embodiment of the present invention. In the figure, reference numeral 4 denotes a heater for cooking rice, and the heater 4 is connected to a commercial power source 8 by a switch 7 consisting of a transistor 5 and a relay 6, thereby adjusting the heating power. 9 includes ROM, RAM, CPU, etc.
It is a so-called one-chip microcontroller, and the ROM is
The switch 7 is driven to control the thermal power of the heater 4 so that rice is cooked according to the rice cooking pattern stored in the rice cooking pattern.

Reference numeral 10 denotes a light emitting device including a transistor 11 and an LED 12, which emits light in response to a signal from the control means 9.

The jar rice cooker in the above embodiment operates as shown in the flowchart shown in FIG. That is, when the device is turned on and started, the switch 7 is driven in accordance with the rice cooking pattern stored in the ROM, and the heating power of the heater 4 for rice cooking is adjusted to cook rice. Then, in step 13, time measurement is started and the light emitting device 10 is turned on to indicate that the rice is finished and that the rice is being kept warm. In step 14, the rice is kept warm, in step 15, time is measured, and in step 16, it is determined whether 13 hours (1A) or more have passed since the end of the rice cooking. If the time has passed, the process proceeds to step 17, where the light emitter 1o starts blinking to notify the user that the rice is becoming perishable.

Effects of the Invention As described above, according to the present invention, when the rice being kept warm becomes susceptible to spoilage, the warming status display means starts flashing, so the user can take measures to prevent the rice from spoiling unnecessarily, and as a result, the rice kept warm becomes more likely to spoil. It is completely impossible to predict the condition of the rice being cooked. For example, people who are not involved in cooking rice will no longer accidentally eat rotten rice.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a jar rice cooker showing an embodiment of the present invention, FIG. 2 is a circuit diagram of the jar rice cooker, and FIG. 3 is a flow chart showing the operation of the jar rice cooker. 1... Rice cooking means, 2... Timer means, 3... Heat retention status display means. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2 + Vv.

Claims (1)

[Claims] It consists of a rice cooking means for cooking and keeping the rice warm, a timer means for starting measurement when the rice cooking and steaming are completed and outputting after a certain period of time, and an LED, etc., which lights up while the rice cooking means is in the keeping warm operation. and a warming state display means that blinks when there is an output from the timer means.