JPS63294811A - 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 rice cooker for use in general households.

BACKGROUND OF THE INVENTION A conventional rice cooker of this type has a structure as shown in FIG. In FIG. 3, reference numeral 1 denotes a pot for cooking rice, and this pot 1 is detachably mounted on a bottom heater 3 installed at the inner bottom of a protective frame 2. A rice-cooking side heater 4 and a heat-retaining side heater 6 are disposed on the upper outer surface of the protective frame 2.

6 is a lid heater; 7 is a temperature detection means for detecting the temperature of the rice inside the pot 1 in contact with the outer bottom surface of the pot 1; A control unit 8 having heating control means controls the bottom heater 3, the rice-cooking side heater 4. Rice was cooked by controlling the output to the heat-retaining side heater 5, lid heater 6, etc.

Problems to be Solved by the Invention With such a conventional configuration, with the diversification of menus in recent years, if a user sets the amount of rice and water for porridge and cooks white rice incorrectly, the rice will boil over. There was a problem.

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

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a heating means, a temperature detection means for detecting the temperature inside the pot in contact with the outer surface of the upper part of the pot, and a It is equipped with a temperature determination means that receives a signal and determines that a predetermined temperature has been reached, and a heating control means that stops output to the heating means in response to a signal from the temperature determination means when the predetermined temperature is reached. be.

action According to the above configuration, the water before boiling over occurs.

The temperature detection means in contact with the outer surface of the upper part of the pot detects the temperature rise in the upper part of the pot due to the boiling of the pot, and the temperature determining means determines that a predetermined temperature has been reached. Since the heating control means stops the output to the heating means in response to a signal from the heating means, boiling over can be reliably prevented.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 and 2. In FIG. 2, reference numeral 11 denotes a pot for cooking rice, and this pot 11 is detachably mounted on a bottom heater 13 installed at the inner bottom of the protective frame 12. Further, a side heater 14 for cooking rice and a side heater 16 for keeping warm are arranged on the upper outer surface of the protective frame 12. 16 is a lid heater, and this lid heater 16 and the bottom heater 13. Side heater for rice cooking 14. The heat-retaining side heater 15 corresponds to the heating means 21 in FIG. In FIG. 2, reference numeral 1 denotes bottom temperature detection means for detecting the temperature of rice inside the pot 11, and a signal from this bottom temperature detection means 17 is used to determine the temperature during normal rice cooking operation.

Reference numeral 18 denotes a temperature detection means facing the upper outer surface of the pot 1 and attached to the protective frame 12. Reference numeral 19 denotes a control unit, which, as shown in FIG. A heating control means 22 is provided for stopping the output to the heating means 21 in response to a signal from the temperature determining means 2o.

The operation of the above configuration will now be described.

Until the water boils inside the pot 11 and bubbling occurs,
Since the upper part of the pot 11 is an air layer, the area near the temperature detection means 18 which is in contact with the outer surface of the upper part of the pot 11 does not reach a predetermined temperature. When the water boils inside the pot 11 and bubbles up, the top of the pot 11 becomes a layer of boiling water. temperature increases and reaches a predetermined temperature. The temperature determining means 2o receives this temperature change as a signal from the temperature detecting means 18 and determines the temperature, and when a predetermined temperature is reached, the heating control means 22 receives a signal from the temperature determining means 20 and sends the signal to the heating means 21. This will stop the output.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
The temperature detection means in contact with the outer surface of the upper part of the pot detects the temperature rise at the top of the pot due to boiling before boiling over occurs, and when the temperature reaches a predetermined temperature, the heating control means stops the output to the heating means. Therefore, it is possible to provide users with a rice cooker that does not cause problems.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a rice cooker showing an embodiment of the present invention;
FIG. 2 is a sectional view showing the structure of the rice cooker, and FIG. 3 is a sectional view showing the structure of a conventional rice cooker. 18...Temperature detection means, 21...Heating means, 20...Temperature determination means, 22...
・Heating control means. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 1 B

Claims (1)

[Claims] a heating means, a temperature detecting means for detecting the temperature inside the pot by contacting the upper outer surface of the pot, a temperature determining means for receiving a signal from the temperature detecting means and determining that a predetermined temperature has been reached; A rice cooker comprising: heating control means for stopping output to the heating means in response to a signal from the temperature determining means when the temperature reaches a certain temperature.