JPS62152416A - 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 general household use.

2. Description of the Related Art In recent years, jar rice cookers using microcomputers (hereinafter referred to as microcomputers) have dominated the market. This microcomputer-type jar rice cooker uses a soft-touch switch arrangement called a tact switch as an input switch. The functions of each switch include a rice cooking start switch, a heat retention switch, a timer setting switch, a cancel switch, etc., but each switch was always ready for input.

Problems to be Solved by the Invention In such a conventional configuration, for example, when a housewife tries to cook rice, she presses the rice cooking start switch and the rice starts cooking.
After the rice started cooking, the child accidentally pressed the cancel switch, causing inconveniences such as the rice not being cooked when desired, which was a practical problem in the first version.

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 problems, the present invention provides a state holding means for outputting to the rice cooking means, the warming means, the timer setting means, and the canceling means so as not to accept each input. It is something that

Effect According to the above configuration, the state holding means works to prevent the external (
All input to the jar rice cooker from the user is prohibited, so once the user has made the desired settings and operated the rice cooker,
For example, you can get cooked rice when you want it without having it accidentally put into a different operating state by someone else.

Example An embodiment of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

(1) is the switch Sl for setting the timer time.
is a timer setting means connected to. (2) is a rice cooking means connected to the rice cooking switch S2 which is used to start the rice cooking operation, and when the rice cooking switch S2 is pressed, if the timer time is set by the timer setting means il+, the timer rice cooking operation is started; If not, start cooking immediately. (3) is a heat-retaining means connected to the heat-retaining start switch S3, which automatically operates when the switch S3 is pressed other than when rice is being cooked, or after the rice cooking operation is completed by the rice-cooking means (2). This is what we do.

(4) is a cancellation means connected to the cancellation switch S4, which stops or cancels the rice cooking operation, timer setting, and warming operation. (5) is a state holding means connected to the all input prohibition switch S, and supplies its output to the timer setting means (1), the rice cooking means (2), the warming means (3) and the canceling means (4). Thus, even if the corresponding switches 81 to S4 are operated by a user or the like, valid inputs are not accepted. In other words, this state holding means (
7], inputs not desired by the user are prohibited to prevent erroneous operations. (6) is a load control means, the input of which is connected to the rice cooking means (2), the warming means (3) and the canceling means (4), and controls the load (7J) according to the outputs thereof.

Next, FIG. 2 shows a specific circuit diagram of an embodiment of the present invention.

αB is an AC power supply with a resistor +12) and a diode 1131. and capacitor α4) are connected in series, and a constant voltage diode (15
A series circuit of 1 and a resistor twr is connected. Both ends of this voltage regulator diode serve as a DC power supply (DD-)Φ.

In addition, a triac (171) is connected to both ends of the AC power supply (11).
Series circuit with heat-retaining heater α&, and relay contact σ9
The series circuit of and the rice cooker heater are connected in parallel. The triac (1B has a resistor Qυ and a control gate connected to the microcomputer Q4I through the transistor 23) is a resistor that connects the base of the transistor to the positive potential vDD.On the other hand, the relay contact U
The relay coil C251 is a transistor (20,
The input to the terminal via the resistor is the DC power supply VDD.
- the input switch 8 connected in parallel between
Each of them corresponds to 1p37/, which consists of each of 1 to S5 and each of the corresponding resistor .about.(33).

Next, the operation of this embodiment will be explained.

After the user turns on the power, for example, the rice cooking switch 82'
When pressed, the rice cooking heater (2 (11) is turned on and off by relay contact a9 to cook rice according to the predetermined rice cooking pattern stored in the microcomputer CI+.Also, if you want to cook rice using a timer, press switch S1. Setting the timer time and then pressing the switch S2 performs the timer rice cooking operation.Also, when the warming switch S3 is pressed, the triac (17) becomes conductive and energizes the warming heater eel.In addition, the above three types If you want to stop or cancel the operation, you can press the switch S4.Furthermore, the switch S5 has the role of prohibiting the overlay input by the above four switches Sl to S4.In other words, when the switch S5 is closed, the above four switches The inputs from the two switches Sl and -S4 are not input to the microcomputer c!41 at all.

For example, when the user presses the switch S2, the rice cooking operation starts in a predetermined pattern under the control of the microcomputer (24J), and then the switch S5 is turned on. From then on, the microcomputer c! Any input to the gradient is prohibited. Therefore, even if the switches 81 to S4 are operated by mistake from now on, rice cooking according to the predetermined pattern will continue.

It will be more effective if the switch S5 is installed in a place that is more difficult to operate than the music switch.

Effects As described above, according to the present invention, since a state holding means is provided for outputting to the rice cooking means, warming means, timer setting means, and canceling means so as not to accept each input, the user can set the desired operation. , the switch is accidentally pressed (
Therefore, it is possible to provide a jar rice cooker that can prevent operations that the user does not desire from occurring due to input input).

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a specific circuit diagram of the embodiment. (1)...Timer setting means (2)...Rice cooking means (3)...Warmth keeping means (4)...Cancellation means (5)...Status Holding means (6)...Load control means (7)...Load (2Jυ...ee/Microcomputer Sl...
・Timer setting switch S2 ・・Rice cooking switch S3 ・・Warming start switch S4 ・・・Cancellation switch S5 ・・・All input prohibition switch Patent applicant Matsushita Electric Industrial Co., Ltd. Agent Ken Niimi (1 other person) Figure 1

Claims (1)

[Claims] A timer setting means for setting a timer time; a rice cooking switch for starting a rice cooking operation; and if the timer time is set by the timer setting means when the rice cooking switch is pressed. A rice cooking means that performs a timer rice cooking operation, or a rice cooking means that performs an immediate rice cooking operation, a warming means that performs a warming operation, a rice cooking operation, a timer setting,
a canceling means for canceling the warming operation; a load control means for controlling the load by the output of the rice cooking means, the warming means, and the canceling means; the rice cooking means, the warming means, the timer setting means, and the canceling means; A jar rice cooker comprising output and state holding means for not accepting each input.