JP5256957B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device capable of measuring time.

  Conventionally, as shown in FIG. 7, this type of heating cooker has a commercial power source 1, a heating unit 2, a heating coil 3 for induction heating a pan or the like by the heating unit 2, and a high-frequency current to the heating coil 3. It consists of an inverter circuit 4 that flows. Reference numeral 5 denotes a control means which receives the signal from the operation unit 6 and controls the inverter circuit 4 so that nine stages of thermal power from “1” to “9” are applied to the pan. 7 is a timer time display means comprising an LCD, 8 is a thermal power display means comprising an LED, 9 is a heating off / on switch for turning heating on and off, 10 is a thermal power setting means, 10a is a thermal power up switch, and 10b is a thermal power down switch 11 is an off timer setting means for setting the time of the countdown timer, 11a is a timer time up switch, and 11b is a timer time down switch. 14 is a count-up mode switch for setting a count-up timer, and 15 is a notification means such as a buzzer.

  Here, when the heating time is set and a countdown timer for automatically turning off the heating after the set time is set, the time is set by the timer time up switch 11a or the timer time down switch 11b. Normally, nothing is displayed on the timer time display means 7, but when the countdown timer is set, the remaining time is displayed on the timer time display means 7. In general, a timer of several hours is often used for cooking at low heating power, and the timer time display means 7 displays units of “hour” and “minute”.

In addition, since the countdown timer turns off the heating after the set time, the countup timer can be used as a kitchen timer-like time measuring mode for the purpose of adjusting the heating power or adding the ingredients during cooking. When the count-up mode switch 14 is pressed to enter the count-up mode, the timer time display means 7 displays the time measured in units of “minute” and “second”. If there is enough display space, it is possible to make it easier to understand by using independent display means, but when displaying the time with the same timer time display means by timer countdown and countup, In other words, they are distinguished by displaying a unit of digits (see, for example, Patent Document 1).
Japanese Patent No. 3814784

  However, it is preferable that the timer time display means 7 is an LCD or the like and the unit display can be changed according to the situation. However, when the time display is performed by a 7-segment LED or the like, there is a problem that it is difficult to display the unit. Was. Further, when the unit display is not possible, there is a problem that the user cannot know the time keeping time if the unit of the digit is changed during the display.

  An object of the present invention is to solve the above-mentioned conventional problems, and to display the countdown timer time and the countup timer time in an easy-to-understand manner without any hesitation by an inexpensive three-digit display means.

In order to solve the above-mentioned conventional problems, the heating cooker of the present invention is set by a heating means for heating a pan or the like, a heating power setting means for setting the heating power of the heating means in a plurality of stages, and the heating power setting means. Thermal power display means for displaying the generated thermal power, time display means for displaying the time in three digits, off timer setting means for setting the time to turn off the heating, and counting down from the set time, and counting the elapsed time Count-up timer setting means for setting to count up, and when the three-digit time display means displays the time set by the off-timer setting means, the most significant digit of the three digits is set to the time The remaining 2 digits are displayed in minutes, and when the time counting mode is selected by the count-up timer setting means, the most significant digit is displayed in minutes and the remaining 2 digits are displayed in seconds. In which it was to be displayed in place.

  As a result, the off-timer and the count-up timer can be realized without using the same three-digit time display means without increasing the cost, and even with a relatively inexpensive time display means without impairing usability.

  The heating cooker of the present invention can be realized without using the same three-digit time display means for the off-timer and the count-up timer, and even without using a relatively inexpensive time display means without impairing usability. it can.

  1st invention is the heating means which heats a pan etc., the thermal power setting means which can set the thermal power of the said heating means in several steps, the thermal power display means which displays the thermal power set by the said thermal power setting means, 3 A time display means for displaying the time in digits, an off-timer setting means for setting the time to turn off the heating and counting down from the set time, and a count-up timer setting means for setting the elapsed time to be counted and the time to be counted up When the time set by the three-digit time display unit displays the time set by the off-timer setting unit, the most significant digit of the three digits is displayed in the hour unit, and the remaining two digits are displayed in the minute unit. At the same time, when the time counting mode is selected by the count-up timer setting means, the most significant digit is displayed in minutes and the remaining two digits are displayed in seconds, and the unit of digits is displayed. If you want to cook for a long time and then turn it off, you can use it as a countdown timer for up to a little less than 10 hours, and when using it as a countup timer, you can display up to 9 minutes 59 seconds in seconds. It is possible to know the time accurately even when the timing of charging is required or when delicate heating is required.

  In addition, in the second invention, particularly in the heating cooker of the first invention, the time display means includes a colon (“:”) between the three most significant digits and the other two digits, and the colon (“ :)) is turned on when the off time is set by the off timer setting means and the time is displayed, and is flashed when the time is counted by the count up timer setting means. It is possible to easily understand whether the currently displayed time is “hour” and “minute” or “minute” and “second”.

  In addition, in the third invention, particularly in the cooking device of the first or second invention, when the time counting is performed by the count-up timer setting means, the time displayed by the time display means is 9 minutes 59 seconds. After “9:59” is displayed, the display returns to “0:00”, and then repeats from the display for 1 second. When used with a general kitchen timer, it is often used within 10 to 15 minutes and is counted. Since the unit of the display digit does not change during the uptimer display, the user is not confused.

In addition, the fourth invention includes a minute digit display switching means for switching to a mode in which the tenth digit of elapsed time is displayed in the count-up timer, particularly in the heating cooker of the third invention, and heating power during heating The display means displays the set thermal power in a level bar that shows in steps, and when the minute digit display switching means is selected, only the number corresponding to the tenth digit of the timekeeping time is displayed Thus, even after 10 minutes, the user can know how many minutes have passed properly.

  In addition, in a fifth aspect of the cooking device according to the fourth aspect of the present invention, when the minute digit display switching means performs ten-digit display, the display by the thermal power display means is set after the predetermined time has elapsed. If you forget to return the display, it automatically returns to the thermal power display, and the heating power that is actually heated is displayed, so there is no mistake in the thermal power and you can prevent cooking failures .

  In addition, the sixth aspect of the invention is the heating cooker of the fourth aspect of the invention, in particular, only when the minute digit display switching means is being pressed, the display by the thermal power display means is changed from the set thermal power display to the ten digit display. It is only necessary to know the time when the user wants to know, and since the thermal power is displayed at other times, it is possible to prevent a cooking failure without mistaking the thermal power.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a heating cooker according to the first embodiment of the present invention.

  1 is a commercial power source, 2 is a heating coil 3 for induction heating of a pan or the like by a heating means, and an inverter circuit 4 for passing a high-frequency current through the heating coil 3. Reference numeral 5 denotes a control means which receives the signal from the operation unit 6 and controls the inverter circuit 4 so that nine stages of thermal power from “1” to “9” are applied to the pan. 7 is a timer time display means capable of digital display of 3 digits (8:88 is displayed for easy understanding, but nothing is displayed when the normal timer time is not displayed), 8 Is a thermal power display means composed of LEDs, 9 is a heating off / on switch for turning heating on / off, 10 is a thermal power setting means, which comprises a thermal power up switch of 10a, a thermal power down switch of 10b, and 11 a time of a countdown timer An off timer setting means for setting, 11a is a timer time up switch, and 11b is a timer time down switch. 14 is a count-up mode switch for setting a count-up timer, and 15 is a notification means such as a buzzer. Reference numeral 16 denotes a town and up mode display means which is lit when the count up mode switch 14 is pressed to enter the count up mode, and indicates that the time displayed on the timer time display means 7 is the count up time. Is.

  First, when the heating off / on switch 9 is pressed to start heating, the control means 5 drives the inverter circuit 4 so that a high frequency current flows through the heating coil 3 to heat the pan and the like. Here, the thermal power that can be set by the thermal power setting means 10 is set in nine stages of 100 W, 300 W, 500 W, 700 W, 1000 W, 1500 W, 2000 W, 2500 W, and 3000 W in order from the low thermal power 1, setting 2... When heating is started simply by pressing the heating off / on switch 9, the heating starts at 1000 W of setting 5. At that time, the 1 to 5 LEDs are lit on the thermal power display means 8. In this case, when the thermal power up switch 10a is pressed, the LED of the thermal power display means 8 lights up to 6, and setting 6 is transmitted from the operation unit 6 to the control means 5, and finally the heating means 2 The heating power is controlled to 1500W. The same applies when you want to lower the firepower.

Next, the operation of the countdown timer will be described with reference to FIGS. FIG. 2 shows the display state of the timer time display means 7 when setting the timer time. The state where the normal countdown timer is not set is step 20 in FIG. Each time the timer time up switch 11a is pressed in this state, the time displayed on the timer time display means 7 changes as in steps 21 and 22. When the timer time down switch 11b is pressed from the state of step 20, 9 hours and 30 minutes of the state of step 26 are displayed. In addition, the display time can be increased or decreased at intervals earlier than usual by long-pressing both switches. Thus, when it is desired to set a short time, the timer time up switch 11a can be set in a short time by pressing or holding down the timer time up switch 11a several times. When it is desired to set for a long time, the timer time can be set in a short time by pressing the timer time up switch 11b several times or continuously. Further, the off-timer time is expressed before and after the colon (":"), that is, the highest digit of the three digits as hours and the remaining two digits as minutes. Next, the display state when the countdown timer is set will be described with reference to FIG. FIG. 3 shows a state in which the step 30 is set to the thermal power setting 5 and the off timer time is set to 20 minutes. When 1 minute elapses, the timer time display means 7 displays 19 (step 31). When the time becomes zero (step 32), the buzzer is notified by the notification means 15, and then the display of the timer time display means 7 disappears as in step 33, and the display of the thermal power display means 8 also disappears and the heating is turned off.

  Next, the count-up timer mode will be described using FIG. 4 and FIG. In FIG. 4, step 40 is a state where nothing is displayed on the timer time display means 7. When the count-up mode switch 14 is pressed here, (0:00) is displayed as in step 41. Then, the time is increased in increments of 1 second such as step 42 and step 43. At this time, the most significant digit of the three digits is minutes, and the remaining two digits are seconds. In this case, since the time increases every second, the user can now see that the time is displayed by the count-up timer without displaying the unit of digits, and the unit is seconds until 9 minutes 59 seconds. Because it can be displayed, it is possible to know the time accurately even when the timing of throwing in the food is necessary, or when delicate heating is required. Furthermore, if the count-up mode display means 16 is turned on, it is possible to recognize at a glance that the count-up mode is in effect. Further, as shown in FIG. 5, during the count-up mode, a colon (“:”) is blinked at intervals of 0.5 seconds, for example. That is, in the state where (0:00) is first displayed in step 51, only the colon (":") is turned off 0.5 seconds later, as in step 52, and further 0.5 seconds later as in step 53. The display time becomes 1 second and the colon (":") lights up. In this way, by changing the display method by the timer time display means 7 between the countdown timer and the countup timer, the countup timer display means 16 can be recognized without the countup mode display means 16, and the current display is being performed. It is easy to understand whether time is "hours" and "minutes" or "minutes" and "seconds".

  In this embodiment, 0 is displayed in the most significant digit for 1 hour or less at the time of the countdown timer and 1 minute or less at the time of the countup timer, but the 0 display of the most significant digit may be deleted.

  Next, in FIG. 4 and FIG. 5, the process proceeds from step 46 to step 41 and from step 58 to step 51 to return the display from (9:59) representing 9 minutes 59 seconds to (0:00). To step 42, and from step 51 to step 52.

In general, the count-up timer is frequently used within 10 to 15 minutes. If the user has not watched the time displayed on the timer time display means 7 for a while and then sees a display such as (2:30), for example, it is 2 minutes 30 seconds. Since it can be understood sensuously whether it is second or not, the elapsed time can be known as long as it does not exceed 20 minutes. In addition, minute digit display switching means is provided so that the number of minutes digits can be determined more reliably. Here, since the minute digit display switching means is used only in the count-up timer mode, it is shared with either the timer time up switch 11a or the timer time down switch 11b, or both of these switches are used as the minute digit display switching means. As a result, ten digits in the count-up mode can be displayed without increasing the number of switches. Next, a display example in the case of displaying the tenth digit will be described with reference to FIG. Here, it is assumed that the time of the count-up timer has elapsed 21 minutes 19 seconds. First, FIG. 6A shows a state in which the count-up time during heating is displayed. The heating thermal power is set to 5, and the thermal power display means 8 is lit with 1 to 5 LEDs. Further, the count-up mode display means 16 indicating the count-up mode is lit, and (0:19) is displayed on the timer time display means 7. In this state, the timer time up switch 11a or the timer time down switch 11b is pushed as the minute digit switching display switching means. Then, as shown in FIG. 6B, only the LED whose display of the thermal power display means 8 is 2 is lit, and the other lit LEDs are turned off. Thus, it can be seen that 0 displayed on the timer time display means 7 represents 20 minutes. Thereby, in this embodiment, it can be used as a count-up timer up to 90 minutes 59 seconds. After 5 seconds, the display on the timer display means 8 automatically returns from the state shown in FIG. 6B to the state shown in FIG. As a result, there is no need to return the display by pressing the minute digit switching display means again, and even if the display is switched unintentionally, it will return to the thermal power display after 5 seconds, so the thermal power may be wrong. It can prevent cooking failure.

  Further, if the minute digit is confirmed once, it is only one digit of the minute digit thereafter, but it can be imagined for a while, and it is not necessary to press it again and again. Therefore, only while the minute digit switching display means is being pressed, as shown in FIG. By displaying it and returning to the original thermal power display when the pressing is stopped, the thermal power can usually be displayed at all times, and a cooking failure due to a thermal power error can be prevented.

  By doing as described above, even if the unit of time displayed on the timer time display means 7 is not displayed, it is possible to realize a longer count-up timer without making a mistake in the unit.

  Although the heating means according to the present embodiment is induction heating, there is no change even if a heat source such as a heater or gas is used as the heating means.

  As described above, the cooking device according to the present invention realizes the countdown and countup timers without using the heating means and without impairing the user's convenience by using the same display means and a three-digit inexpensive one. it can.

The block diagram of the heating cooker in the 1st Embodiment of this invention Normal state transition diagram at the time of setting the countdown timer in the first embodiment of the present invention The figure which shows the example of a time display of the countdown of the operation part in the 1st Embodiment of this invention Time table transition diagram in count-up timer mode in the first embodiment of the present invention Second time display transition diagram in count-up timer mode in the first embodiment of the present invention The figure which shows the example of a display at the time of count-up of the operation part in the 1st Embodiment of this invention Configuration diagram of a conventional cooking device

Explanation of symbols

2 Heating means 7 Timer time display means 8 Thermal power display means 10 Thermal power setting means 11 Off timer setting means 14 Count-up mode switch

Claims (6)

A heating means for heating a pan, a heating power setting means for setting the heating power of the heating means in a plurality of stages, a heating power display means for displaying the heating power set by the heating power setting means, and a time in three digits. A time display means, an off-timer setting means for setting a time for turning off heating, and counting down from the set time, and a count-up timer setting means for setting to count the elapsed time and count up the time. When the time display means displays the time set by the off-timer setting means, the most significant digit of the three digits is displayed in the hour and the remaining two digits are in the minute, and the count-up timer A cooker that displays the most significant digit in minutes and the remaining two digits in seconds when the time measuring mode is selected by the setting means. The time display means has a colon (":") between the three most significant digits and the other two digits, and the colon (":") is set to the off-timer by the off-timer setting means and the time is displayed. The cooking device according to claim 1, wherein the cooking device is turned on when the timer is on, and is flashed when the time is counted by the count-up timer setting means. When the time is measured by the count-up timer setting means, the time displayed on the time display means is 9 minutes 59 seconds. After “9:59”, the display is returned to “0:00” and then displayed for 1 second. The heating cooker according to any one of claims 1 and 2, which repeats from 1 to 3. While comprising a minute digit display switching means for switching to a mode for displaying the ten-digit minute of elapsed time during the count-up timer, the heating power display means during heating displays the set thermal power in a stepwise manner, The cooking device according to claim 3, wherein when the minute digit display switching means is selected, only the number corresponding to the tenth digit of the time measurement is displayed. The cooking device according to claim 4, wherein when the minute digit display switching means performs ten-digit minute display, the display by the thermal power display means is returned to the level bar display indicating the set thermal power after a predetermined time has elapsed. The cooking device according to claim 4, wherein the display by the thermal power display means is switched from the set thermal power display to the ten-digit display only while the minute digit display switching means is being pressed.

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