JPS6226024A - Timer device of 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 the Invention The present invention relates to a timer device for a cooking appliance such as a rice cooker.

2. Description of the Related Art A conventional timer device for a cooker of this type is shown in a block diagram as shown in FIG. 4, and its operation will be explained based on this block diagram.

When the timer increase switch 1 is pressed for the first time, the first time determination means 3 determines that it has been pressed for the first time, and sets the timer increase switch 1 to a predetermined timer setting time (for example, 1) stored in the storage means 4. time) is set in the timer setting means 5, and this set time is displayed on the display means 6.

Next, by pressing the timer increase switch 1 or the timer decrease switch 2 an arbitrary number of times, the time is adjusted to the user's desired set time, for example, 10 hours and 30 minutes. That is, the set time can be set to an arbitrary value by pressing the timer increase switch 1 to increase the set time, and when the time has increased too much, by pressing the timer decrease switch 2 to decrease the time. When setting the timer, 1
Assuming that the time increases in units of 0 minutes, the switch must be pressed 6×9+3=57 times.

Next, when the start switch 7 is pressed, the timer subtraction means 8
starts its operation and subtracts the set time of the timer setting means 6 according to the elapsed time. When the subtracted timer setting time reaches 0 minutes after a predetermined setting time, for example 10 hours and 30 minutes, the heating means 9 starts its full operation and performs a predetermined heating operation.

Problems to be Solved by the Invention In such conventional timer devices, when setting the timer for one hour to a long time, such as 10 hours and 30 minutes, a large number of timer increase switches (at least 57 times) had the problem of having to keep pressing the button.

The present invention has been made in order to eliminate such discrepancies, and provides a timer device that can set the timer for one hour with a relatively small number of operations regardless of the length of the set time. The purpose is to provide

Means for Solving the Problems In order to solve all of the above problems, the present invention provides a means for storing the maximum and minimum values of the timer setting time, and stores the outputs of the maximum value storage means and the minimum value storage means and the first time. When the timer increase switch is pressed for the first time, the minimum set time is set according to the output of the determination means, and when the timer decrease switch is pressed, the maximum set time is initially set by the initial determination means. .

Effect: According to the above configuration, when the timer is set for a full hour, even when the timer setting time is equal to or greater than the intermediate value, the desired setting time can be set extremely quickly.

Embodiment Hereinafter, one embodiment of the present invention will be described based on all the attached drawings. FIG. 1 shows a block diagram of a timer device for a rice cooker according to an embodiment of the present invention, and its operation will be explained based on this block diagram. When the timer increase switch 11, which increases the total timer set time, or the timer decrease switch 12k, which decreases the total timer set time, is pressed for the first time, the first time determination means 13 fully determines which switch was pressed for the first time, and determines the maximum value of the timer set time. (
For example, predetermined values of the maximum value storage means 14 and the minimum value storage means 15 which store a minimum value (for example, 1 hour) and a minimum value (for example, 1 hour) are initialized in the timer setting means 16. That is, when the timer increase switch 11 is pressed, the minimum value (1 hour) is set, and when the timer decrease switch 12 is pressed, the maximum value (13 hours) is set. Next, by setting the timer increase switch 11 and timer decrease switch 12 an arbitrary number of times, the desired timer time is set. The setting time of the timer at this time is displayed by the display means 17.
It is displayed by. For example, to set the time to 10 hours and 30 minutes, if you press the timer decrease switch 12 first to increase or decrease the time in units of 10 minutes, the time can be set 2X6-j-3=15 times.

Next, when the start switch 18 is pressed, the timer subtraction means 19 which subtracts the time set in the timer setting means 16 according to the elapsed time since the start switch 18 was pressed starts its full operation. Then, when the subtracted timer setting time reaches a predetermined time (for example, φ time),
The heating means 2° starts its full operation, completes the predetermined heating operation, and ends the timer operation. That is, when the timer increase switch 11 is pressed, it is the same as in the conventional example, but when pressed as in the above example, the timer can be set 42 times less.

FIG. 2 is a circuit diagram of a timer device according to an embodiment of the present invention, and FIG. 3 is a flowchart showing its operation.

In FIG. 2, 30 is a so-called one-chip microcomputer, which has input terminals, output terminals, ROM, R
It is composed of AMIPU.

31 is an L transistor, 32 is a relay, 33 is a heater,
34 is an object to be heated such as a pot.

In FIG. 3, when the timer increase switch 11 or the timer decrease switch 12 is pressed, it is determined in step 1 whether it has been pressed for the first time, and if it is pressed for the first time, it is determined in step 2 whether or not the timer increase switch 11 has been pressed. If so, in step 3, the minimum value of the timer setting time is set. Conversely, when the timer decrease switch 12 is pressed, the maximum value is set in steps 4 and 6, and the resulting set time is displayed on the display means 17 (for example, I, CD) in step 6. Next, as shown in steps 7 to 11, the timer increase switch 11 is set to one hour as the user desires.
Press and set the timer decrease switch 12 as desired.

Next, when the start switch 18 is pressed, a determination is made in step 12, and in step 13, the timer setting time is subtracted according to the total elapsed time, and in step 14, it is displayed on the display means 17.

Next, when a predetermined time has elapsed in step 15, the heating operation is started according to step 16, and the timer operation ends.

That is, after a predetermined period of time has elapsed, the transistor 31
is driven to operate the relay 32, and by energizing the heater 33, the object to be heated 34 (for example, a pot) is heated. Thereafter, in the case of a rice cooker or the like, heating of the heater 33 is stopped by a center thermostat, but this is not shown here.

Effects of the Invention As described above, according to the present invention, the means for storing the maximum and minimum values of the timer setting time, and the outputs of the maximum value storage means and the minimum value storage means and the output of the initial determination means, are used to When the increase switch is pressed, the minimum set time is initialized, and when the timer decrease switch is pressed, the maximum set time is initially set by the initial determination means, so when setting the timer for one hour, the setting Regardless of whether the time is long or short, the timer can be set for one hour with a relatively small number of operations.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a timer device for a cooking appliance according to an embodiment of the present invention, FIG. 2 is a circuit diagram of the timer device, and FIG. 3 is a flowchart 1 for explaining the operation of the timer device.
, FIG. 4 is a block diagram of a conventional timer device. 11...Timer increase switch, 12...
- Timer reduction switch, 13... Initial judgment means, 14... Maximum value storage means, 15... Minimum value storage means, 16... Timer setting means, 17...
・・・Display means, 18・Start switch, 19・
...Timer subtraction means, 2Q...Heating means, 30...Microcomputer. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 4

Claims (1)

[Claims] a timer increase switch that increases the set time for timer operation; a timer decrease switch that decreases the set time for timer operation; initial determination means that determines that the timer increase switch or timer decrease switch is pressed for the first time; and timer setting. The timer increment switch is pressed only by the maximum value storage means and minimum value storage means that store the maximum and minimum values of time, the outputs of the maximum value storage means and minimum value storage means, and the output of the first determination means. a timer setting means for setting the minimum value of the timer setting time when the timer is pressed and the maximum value of the timer setting time when the timer reduction switch is pressed for the first time; and a display for displaying the time set by the timer setting means. means, a start switch for starting timer operation, timer subtraction means for subtracting the set time of the timer setting means according to elapsed time when the start switch is pressed, and the timer setting subtracted by the timer subtraction means. A timer device for a cooker comprising a heating means that starts a heating operation when a value of the means reaches a predetermined time.