JP3264235B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the operation and notification of timer cooking in an induction heating cooker provided with a heating source and a induction heating coil by a heating element in the same main body.

[0002]

2. Description of the Related Art In recent years, an induction heating cooker has placed a temperature detecting element or the like in the vicinity of a pot or the like serving as a load to take advantage of its good heating response, and detects the temperature of the pot or the like to adjust the heating power. In addition to realizing fine cooking, the characteristics of safety and cleanliness are attracting attention because they do not use flames and do not pollute indoor air, and the demand is rapidly growing.

[0003] A conventional heating cooker will be described below. FIG. 7 is a block diagram showing a main part of a conventional heating cooker. A commercial power supply 1 is connected to an inverter circuit 3 via a rectifier 2. The inverter circuit 3 includes a smoothing capacitor 3a, a resonance capacitor 3b, and a switching element 3c. A heating coil 4 is connected to the inverter circuit 3 and the inverter circuit 3 and the heating coil 4 constitute a heating unit for heating the load pan. The control unit 5 receives a signal from the operation unit 6 and controls the switching element 3c, the display unit 7, and the notification unit 8 constituting the inverter circuit 3 according to input conditions of other sensors. By controlling, the output of the heating unit is controlled.

FIG. 8 shows an operation section 6 and a display section 7. The operation section 6 includes an "off / on" key 6a for instructing start and end of cooking, an "up" key 6b for adjusting the heating power, and a "down" key. Key 6c, a "time" key 6d and a "minute" key 6e for setting the timer cooking time, and a "timer off / on" key 6f for instructing start and end of the timer cooking. The display unit 7 is constituted by an LED and displays a level display indicating the heating power during cooking and a cooking time displayed by the liquid crystal display element. The notification unit 8 is configured by a buzzer and performs notification by a signal from the control unit 5.

In order to perform timer cooking from the initial state in this conventional configuration, a cooking time is set by the "time" key 6d or the "minute" key 6e in the initial state, and the "timer off / on" key 6f is operated. By doing so, timer cooking is started. Here, the "time" key 6d and the "minute" key 6e function only as keys for setting the time. Even if the key is input in the state of the settable maximum time, the display returns to the minimum time display and the cooking time is set. Continue,
In addition, all key inputs are accepted in 0.1 second input.

[0006]

In such a conventional heating cooker, the time setting is released by using a key input different from a timer key for setting the time for timer cooking, so that the operation is difficult to understand. However, there was a problem that it became expensive.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and has an inexpensive configuration that has a timer cooking function and does not have a separate cancel (cancel) key for canceling (cancel) its setting. The purpose is to make it easier to understand when canceling the cooking time setting.

[0008]

In order to achieve the above object, the present invention provides a control unit for controlling an output of a heating unit, an operation unit having at least an input device, and input from an input device of the operation unit. A cooking time changing means for changing the time of the timer cooking in accordance with the command; and a display means for displaying the cooking time changed by the cooking time changing means, wherein the time changing means is in a state where the maximum cooking time is set. When a cooking time change command is received, the time setting state is released and the state returns to the initial state, and the notifying means sets the cooking time change
If you want to cancel timer cooking by inputting
In front of the notification pattern different from the time of accepting normal valid key input
The notification means is driven .

With the above configuration, even if there is no independent operation key for canceling the timer cooking time set by the cooking time changing means, the state of the timer cooking time setting is released by the cooking time changing means and the normal cooking time can be canceled. Since the mode can be shifted to the cooking mode, the configuration can be simplified and realized with an inexpensive configuration.
It can be easy to understand .

[0010]

The invention according to claim 1 is a control means for controlling the output of a heating unit, an operation unit having at least an input device, and a timer in response to a command input from the input device of the operation unit. Cooking time changing means for changing the cooking time, display means for displaying the cooking time changed by the cooking time changing means, and notification when an effective operation is performed.
Notification means , wherein the time changing means cancels the time setting state and returns to the initial state when receiving a cooking time change command in a state in which the maximum cooking time is set ,
The informing means is a timer based on the input of the cooking time changing means.
When canceling cooking, accept normal valid key input
By driving the notification means with a notification pattern different from the above, even if there is no independent operation key for canceling the timer cooking time set by the cooking time changing means, the timer cooking time changing means can be used. Can be canceled and the mode can be shifted to the normal cooking mode, so that the configuration can be simplified and realized with an inexpensive configuration.

[0011] Also, if there is no separate key to cancel the state of the time set for the timer cooking, and if the operation for changing time by cooking time change means have been made, in the cooking time change means When the timer cooking time setting is canceled (released), the notification means is driven in a different pattern, so that even if the user operates the same cooking time changing means, the timer cooking function is released. It can be recognized by the notification sound.

[0012] According to a second aspect of the invention, in particular, provided with a timer means for cooking time changing means for counting an elapsed time since the operation, the end cooking time changing means operated a predetermined time after the other operation when is not performed, more particularly to release the time setting of the timer cooking, while setting the cooking time by cooking time changing means from the initial state, when left without starting the heating of the load, a given Since the state returns to the initial state after a lapse of time, the operation can be easily understood when another user uses the apparatus after leaving it for a long time.

According to the third aspect of the present invention, when the cooking time changing means is operated during heating to shift to timer cooking, the cooking time changing means is operated to receive the input. in particular from the processing from the usual cooking the timer cooking to the cooking operation time changing means in the different inter <br/> when required until receiving its input the time required except when heated up to give In this case, since the receiving method of the cooking time changing means is changed, even if the cooking time changing means is accidentally touched during cooking, the mode is not easily shifted to the timer cooking mode, so that the usability can be improved.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a main part of a first embodiment of the present invention, in which the same components as those in the prior art are denoted by the same reference numerals. Commercial power supply 1 is rectifier 2
Through the inverter circuit 3. The inverter circuit 3 includes a smoothing capacitor 3a, a resonance capacitor 3
b and the switching element 3c.
A heating coil 4 is connected to the inverter circuit 3 and the inverter circuit 3 and the heating coil 4 constitute a heating unit for heating the load pan. The control unit 9 receives a signal from the operation unit 10 as an input, and according to input conditions of other sensors, a switching element 3c constituting the inverter circuit 3, a display unit 11,
The control of the notification unit 8 is performed, and the output of the heating unit is controlled by controlling the switching element 3c. Here, the control means 9 comprises a one-chip microcomputer, and the notification section 8 comprises a buzzer.

FIG. 2 is a diagram showing an example of the operation unit 10 and the display unit 11. The operation unit 10 includes a "timer" key which constitutes a cooking time changing means 12 for setting a cooking time, and a heating cooking mode. "Off / On" key 10a for instructing start and end
And an "up" key 10b for increasing the heating power during cooking and a "down" key 10c for decreasing the heating power. The display unit 11 includes a level display unit 11a that displays the intensity of heating during cooking and a time display unit 11b that displays the time of timer cooking. The level display unit 11a and the time display unit 11b are each configured by an LED. Have been.

FIG. 3 is a diagram showing a part of the display section 11 when the "timer" key is operated.
(B) to (d) show the state when the cooking time is set by the “timer” key. In the initial state (a), all the LEDs in the display unit 11 are turned off, but when the "timer" key is pressed once from that state, the cooking time of 0.5 hour is set (b) and the cooking time of 0.5 hour is set. The LED that it represents lights up. Thereafter, each time the "timer" key is operated, the set time becomes 1 hour (c) and 3 hours (d), the corresponding LED is turned on, and the other LEDs are turned off. When the "timer" key is operated in the state (d) of the settable maximum time (3 hours in the present embodiment), the time setting state of the timer cooking is canceled and the LED indicating 3 hours is turned off and the initial state (a).
Return to Thereafter, every time the “timer” key is operated, the time setting state of the timer cooking and the initial state are repeated in the order of (a) → (b) → (c) → (d) → (a) →.

Thus, even in a configuration in which there is no "timer" key for setting the time for the timer cooking and a key for canceling the state of the time setting different from the "timer" key, one "timer" key is easy to understand. It can be operated.

In this embodiment, the timer time which can be set is set to three stages, but this is not limited to three stages, and the same applies to an arbitrary set number.
The set time can be set at any time.

FIG. 4 shows the key input time when the "timer" key is operated and the notification time of the buzzer constituting the notification means 8. FIG. 4 (a) shows the case where the "timer" key is input from the initial state. Then, the key input is accepted for 0.1 second, then the buzzer sounds for 0.1 second, and the LED indicates 0.5 hour
Lights up and the timer cooking time is set. (B)
Is a state where the "timer" key is input from the time setting state of the timer cooking for 0.5 hour, and (c) is a state where the "timer" key is input from the time setting state of the timer cooking for one hour. Accept for 0.1 seconds, then buzz the buzzer for 0.1 seconds to change the set time for timer cooking. When the "timer" key is input from the state of the settable maximum time (the state of (c) in this embodiment), the key input is accepted for 0.1 second as shown in (d),
Thereafter, the buzzer is sounded for 0.2 seconds to shift from the state of the timer cooking time setting to the initial state, and the LED is turned off. When setting the timer cooking time from the initial state in this way, every time the “timer” key is operated, if the timer cooking time is set, the buzzer sounds for 0.1 second, and the timer cooking time is set. When shifting from the setting to the normal initial state, the sounding for 0.2 seconds is repeated.

Thus, even when the user returns from the time setting state of the timer cooking to the initial state with the same key input as the key for setting the time of the timer cooking, the user can be easily notified of the return to the initial state. .

FIG. 5 is a flow chart showing the operation after the "timer" key is operated. The timer 13 resets and counts according to the signal of the controller 9, and in this embodiment, is realized by a microcomputer. I have.

In step 101, when the input of the "timer" key is detected, in step 102, the time measuring means 13 determines the elapsed time t1 since the previous operation of the "timer" key.
Is reset (t1 = 0). In step 103, the elapsed time t1 is measured by the time measuring means 13. In step 104, the elapsed time t1 measured in step 103 and the time Tk (from 10 in this embodiment) to return to the initial state from the preset state of timer cooking.
Minutes), and if the elapsed time t1 from the previous "timer" key input is equal to or less than the set time Tk (t1.ltoreq.Tk), the flow returns to step 103 and the elapsed time t1 by the timer is again used.
If the elapsed time t1 from the previous "timer" key input is greater than the set time Tk (t1> Tk), the routine proceeds to step 105, where the timer cooking time is set to the initial state.

As a result, even if the user leaves the timer cooking time in the middle of setting, it returns to the initial state after 10 minutes, so that it can be used without any confusion when another user uses it. is there.

In this embodiment, the time required to return to the initial state is set to 10 minutes. However, the time is not limited to 10 minutes, but is required to set a cooking time and start timer cooking. If it is longer than the time, the same effect can be obtained.

FIG. 6 shows the "timer" when the "timer" key is operated while the load pan is being heated to shift to timer cooking.
FIG. 9 is a diagram illustrating a time required for accepting a key, a buzzer notification pattern, and an operation state at that time. From the description so far, when the "timer" key is operated in the initial state, the key input is accepted by the key operation for 0.1 second or more at any time. When operated for more than 4 seconds, when a key input is accepted, the buzzer is notified for 0.1 seconds, and the timer cooking state is set for 0.5 hours. When 30 minutes elapse after the key input, heating is ended and the state returns to the initial state. On the other hand, if the input of the "timer" key for 0.1 second or more is accepted during the timer cooking, the setting of the cooking time changes to 1 hour and 3 hours. When the "timer" key is operated for 0.1 second or more from the timer cooking state of 3 hours (maximum time that can be set), the buzzer is notified for 0.2 seconds, and the timer cooking state is returned to the normal heating.

As described above, the timer is used during cooking.
Since the key input reception time is different from the key input reception time in the normal case, even if you touch the `` timer '' key by mistake during heating, it does not immediately shift to the timer cooking state, "Timer" with a clear will
When the key is operated, the timer cooking can be set and the usability can be improved.

[0027]

According to the first aspect of the present invention, when the timer key is operated next to the maximum set time of the timer cooking, the setting of the timer cooking is released, so that one key is set. Can be set and released, can be provided at low cost, and if you set the timer cooking time
Of the notification means for receiving the key input
Accepts key input when canceling immersive cooking settings
By changing the drive pattern of the notification means,
The operation state can be easily understood.

According to the second aspect of the present invention, even if the timer cooking time is set and the apparatus is left for a long time, the mode returns to the initial state from the set mode after a predetermined time has elapsed, so that another user can use the mode. Even in such a case, the operation can be performed without confusion and the usability can be improved.

According to the third aspect of the present invention, the time for shifting from the initial state to the setting of the timer cooking time and the case of shifting to the timer cooking during the heating cooking can be changed even if the same key is operated. Since the timer key is changed, it is possible to prevent the timer cooking from being immediately performed when the timer key is accidentally touched during the heating cooking, thereby improving the usability.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main part of a heating cooker according to one embodiment of the present invention.

FIG. 2 is a diagram showing an operation unit and a display unit of the heating cooker according to one embodiment of the present invention.

FIG. 3 is a “timer” of the cooking device according to one embodiment of the present invention.
A diagram showing the display state of the display unit at the time of key input

4A is a diagram showing a key input and a buzzer notification pattern diagram of a heating cooker according to an embodiment of the present invention (a diagram showing a state where a “timer” key is input from an initial state). FIG. Key input and buzzer notification pattern diagram (diagram of “timer” key input from 0.5 hour timer cooking time setting state) (c) Same as above, key input of heating cooker and buzzer notification pattern diagram ( The figure showing the state in which the "timer" key is input from the time setting state of the one-hour timer cooking.) (D) The key input of the cooking device and the buzzer notification pattern diagram (the "timer" from the state of the maximum settable time) Diagram of key input)

FIG. 5 is a “timer” of the cooking device according to one embodiment of the present invention.
Key operation flowchart

FIG. 6 is a diagram showing a key input reception pattern of the cooking device according to one embodiment of the present invention.

FIG. 7 is a block diagram showing a main part of a conventional cooking device.

FIG. 8 is a diagram showing an operation unit and a display unit of a conventional heating cooker.

[Explanation of symbols]

 8 Informing means 9 Control means 10 Operating part 11 Display part 12 Cooking time changing means

──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshihiro Yamashita 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Akihisa Nakano 1006 Kadoma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. (56) References JP-A-9-148057 (JP, A) JP-A-8-171894 (JP, A) JP-A-4-292889 (JP, A) Japanese Utility Model Application Sho-63-23879 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24C 7/02 H05B 6/12

Claims (3)

(57) [Claims] 1. A control unit for controlling an output of a heating unit, an operation unit having at least an input device, and a cooking time changing unit for changing a timer cooking time according to a command input from the input device of the operation unit. When a display means for displaying the cooking time is changed by the cooking time changing means, effective Misao
Notifying means for notifying when a crop has been performed, and the time changing means cancels the time setting state and returns to the initial state when receiving a cooking time change command in a state where the maximum cooking time is set , and The notifying means is the cooking time changing means.
When canceling timer cooking by inputting a step,
Notification with a different notification pattern than when valid key input
A heating cooker characterized by driving an informing means . When wherein cooking time changing means comprises a counting means for counting the elapsed time since the operation, and finally the cooking time changing means operated after a predetermined time another operation is not carried out, The heating cooker according to claim 1, wherein the timer cooking time setting is canceled. 3. A control means for controlling the output of the heating section,
An operation unit having at least an input device, and an input of the operation unit
Changes the timer cooking time according to the command input from the device.
The cooking time changing means, and the cooking time changing means.
Display means for displaying the changed cooking time.
The recording time changing means cooks with the maximum cooking time set.
When the time change command is received, the time setting state is released and
With return to the initial state, until when to operate the cooking time changing means shifts the timer cooking during heating, accepts the input by operating the cooking time changing means
The required time is controlled by the cooking time changing means other than during heating.
Work to pressurized heat cooker you characterized in that so different from the time required for accepting the input.