JP2003185152A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display setting of a key lock to be easily comprehensible. <P>SOLUTION: In this cooker, a plurality of heat sources 3, 4, 5, a plurality of operating keys for inputting the operating conditions of the heat sources, and display devices 11, 12, 13 for displaying the operating conditions input from the operation keys are disposed in suitable places of a cooker body. The cooker is provided with a lock key 10 for setting a key lock for invalidating the input operation from the operation keys by a specified input operation, and in setting the key lock by the lock key, a display is made by two or more kinds of displays including the display devices. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooker provided with a plurality of heat sources that can be used individually.

[0002]

2. Description of the Related Art Cookers used in general households, in particular,
For example, in the case of an electromagnetic cooker installed in a system kitchen, a gas stove, etc. that has multiple heat sources that can be used individually, when cooking for a relatively long time such as simmering cooking, In many cases, they are away from the vicinity, and during that time, it is conceivable that a child or the like may operate to interrupt cooking or start the operation of an unused heat source. In addition, there is a possibility that the heating by the heat source may be started by operating other than during cooking.

Therefore, for example, as disclosed in Japanese Utility Model Laid-Open No. 20902/1992, there is a key lock setting that does not accept a key operation by a specific input operation of an operation key. In this case, the key lock setting is performed. Sometimes display 1
Since the display is made only by the key mark 43 in 7, there is a problem that the user forgets to set the key lock and does not accept the key input, and mistakes it as a failure.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to display the setting of the key lock more easily and to improve the usability when setting the key lock.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of heat sources for heating an object to be cooked, a plurality of operation keys for inputting operating conditions of the heat sources, and a plurality of operation keys for inputting the heat sources at appropriate places of an appliance body. With a display that displays the specified operating conditions, etc., provide a lock key that sets a key lock that invalidates the input operation from the operation key by a specific input operation, and when setting the key lock by the lock key , And is configured to display by two or more kinds of displays including a display device.

Further, the present invention is configured so that the key lock by the lock key can be set even during cooking and standby.

Further, according to the present invention, a plurality of heat sources for heating an object to be cooked, a plurality of operation keys for inputting operating conditions of the heat sources, and operating conditions input from these operating keys are provided at appropriate positions of the appliance body. In addition to the indicator that displays the etc. and the power switch, a lock key that sets the key lock that disables the input operation from the operation key by a specific input operation is provided, and the key lock is set by this lock key. If the power switch is turned off at this time,
If the "OFF" operation is performed during cooking, stop the heating operation,
When the "off" operation is performed during standby, the key lock is continued.

Further, according to the present invention, when the operation key of the heat source is turned off at the time of setting the key lock, the power supply to the turned off heat source is stopped.
Further, the present invention is configured so that the setting of the key lock can be set for each heat source.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described first with reference to FIG. A top plate 2 made of metal is attached, and a pair of left and right induction heating coils 3 and 4 and a gradient heater 5 which are heat sources are built in the lower part of the top plate.

An operation panel 6 is provided on the right side of the front surface of the electromagnetic cooker body 1, and a door 8 for the grill 7 is provided on the left side of the operation panel so as to be freely drawn out.

On the other hand, the operation panel 6 is mainly divided into three sections in the left-right direction as shown in FIG. 2, and a left and right seesaw type power switch 9 is provided at the upper right end. A lock key 10 for setting / releasing a key lock is provided under the lower part, and the left end of the three sections is for operating the induction heating coil 3, the center is for operating the grill 7 and the radiant heater 5, and the right end is the induction heating coil It is set for 4 operations.

On top of each of the above three compartments, there are arranged indicators 11, 12 and 13 each composed of a liquid crystal panel, and below these indicators a cancel key 14 ... And a time setting key 15 are provided. .., minute setting keys 16 ... Are arranged in a horizontal row, respectively, and below the central keys 14, 15, 16 are operation keys 17 for turning on and off the power supply to the heater in the grill 7. A heat setting key 18 is arranged, and a fried food key 19 for setting fried food cooking is arranged under the respective keys 14, 15, 16 on the right side.

Further, at the bottom of the above-mentioned three compartments, there are arranged operation keys 20, 21, and 22 which can also be operated by push-push operation and rotation, and which are also used for setting heat power, and when the push-push operation pulls out the operation knob. The induction heating coils 3 and 4 and the radiant heater 5 are energized, and when they are pushed in, the operation is stopped, and when they are rotated in the pull-out position, the heating power can be set.

A power lamp 23 is arranged above the power switch 9 and close to it, and
A key lock lamp 24 is arranged above the lock key 10 and close to the lock key 10.

On the other hand, in the above-mentioned display units 11, 12 and 13, a numerical display 25 for displaying cooking time and temperature numerically ...
, A heat power display 26 for displaying the set heat power, a key lock display 27, etc., which are lit when the key lock is set by the operation of the lock key 10 are provided.

In the above embodiment, the deep-fried food key 19 is arranged only in the operation portion for the induction heating coil 4 on the right side, but the present invention is not limited to this, and both the right and left stoves and the gradient heater 5 are provided. These functions may be added to.

FIG. 3 is a circuit block diagram for controlling the energization of the induction heating coils 3, 4 and the like.
Input power monitor circuits 32, 32 are connected to a 0V power source 30 via a filter circuit 31 and the power switch 9, and a right stove control circuit 33 and a left stove control circuit 34 are connected to these outputs. .

The output of the filter circuit 31 is
A main and right stove power supply circuit 36 and a left stove power supply circuit 37 are connected through a self-holding relay contact 35, and the main and right stove power supply circuits are connected to the main control circuit 38 and the right stove. The stove control circuit 33 is connected, and the left stove power supply circuit 37 is connected to the left stove control circuit 34.

The right stove control circuit 33, the left stove control circuit 34, and the main control circuit 38 are each composed of a microcomputer, and the keys arranged on the operation panel 6 are provided at the input ports of the main control circuit 38. The key input circuit 39 for detecting the ON operation of and the knobs 20, 21,
22 is connected to an operation switch circuit 40 that is turned on / off by a push operation, and the output port is also used for a cooling fan 42 and a grill mounted in the electromagnetic cooker body 1 via a cooling fan drive circuit 41. The relay contact 3 is connected to the fan 43 and via the relay drive circuit 44.
5 is connected to a power supply relay drive circuit 45, and a notification buzzer 46 is also connected.

The operation switch circuit 40 detects the rotational operation of the operation knobs 20, 21, 22 and outputs it to the main control circuit 38, and the thermal power set by this rotational operation is displayed on the display 11, 11. 12 and 13 fire power display 26
-It is configured to be displayed on etc.

Also, the right stove control circuit 33 and the left stove control circuit 34 are connected to the input / output port of the main control circuit 38 by a communication line 47, and
An LCD driver 48 for driving the displays 11, 12, and 13 arranged on the operation panel 6 is connected.

On the other hand, an inverter circuit 50 for supplying high frequency power to the right induction heating coil 4 is connected to the output port of the right stove control circuit 33 through an IGBT drive circuit 49, and a grill lower heater drive circuit is connected. The lower grille heater 52 arranged in the lower part of the grille 7 is connected via 51, and the gradient heater 5 is connected via a gradient heater drive circuit 53.

A thermostat 55, which is arranged at an appropriate position of the gradient heater 5 via a gradient temperature detection circuit 54, is provided at the input port of the right stove control circuit 33.
A pan bottom thermistor 57 arranged in the substantially central portion of the induction heating coil 4 and a non-volatile memory 58 for storing various data are connected via a temperature detection circuit 56.

Further, at the output port of the left stove control circuit 34, an inverter circuit 60 for supplying high frequency power to the left induction heating coil 3 via an IGBT drive circuit 59 and a grill heater drive circuit 61 are provided. The grill upper heater 62 arranged in the upper portion of the grill 7 is connected to the non-volatile memory 63 for storing data.

The input circuit of the control circuit 34 for the left stove is arranged at a substantially central portion of the upper thermistor 65, the lower thermistor 66 and the induction heating coil 3 which are arranged in the grill 7 through the temperature detecting circuit 64. The pan bottom thermistor 67 is connected.

The pot bottom thermistors 57 and 67 are configured to detect the temperature of the top plate 2 to detect the temperature of the cooking container placed on the top plate.

The operation of boiling water according to the structure of the present invention will be described below.
4, a cooking container is placed above the radiant heater 5, and the cooking time is set by operating the time setting key 15 ... or the minute setting key 16 ...
When the push-pull operation of 21 and 22 is carried out, the induction heating coils 3 and 4 and the radiant heater 5 that have been operated are energized to start heating.

The heating power can be adjusted by rotating the operation knobs 20, 21, 22 and the set heating power can be confirmed by the indicators 11, 12, 13 on the operation panel 6.

On the other hand, when setting the so-called key lock which does not accept the input operation of each key arranged on the operation panel 6 during the above-mentioned cooking, the lock key 10 is turned on for a predetermined time (for example, several seconds). By operating this, the main control circuit 38 detects this and lights up the key lock lamp 24, and at the same time, the key lock display 27 ... In each of the indicators 11, 12, 13 is lit up, and the cancel key 14 is lit. .. and time setting key 15 ... Set so that input operation of each key is not accepted.

Thus, by displaying the key lock setting with two or more kinds of display of the key lock lamp 24 and the key lock display 27, ..., The setting state can be surely confirmed visually, and the setting is forgotten. It is possible to prevent the failure judgment.

Further, the main control circuit 38, even if the key lock by the operation of the lock key 10 is set when the power switch 9 is operated "off" for some reason during the cooking, When this is cleared, the relay contact 3 such as when the cooling fan 42 or the grill fan 43 is operating
Stop energizing all circuits except when it is necessary to close 5.

As a result, for example, when the cooking time is wrongly set in cooking stew and the power switch 9 is urgently turned "off" due to a kogation or the like, the heating can be stopped regardless of the setting of the key lock. , It is possible to maintain safety.

On the other hand, in a so-called standby state in which any heat source is not operating, when the power switch 9 is turned off when the key lock is set by the operation of the lock key 10, the relay is operated. The key lock is memorized by continuing to close the contact 35 and continuing to energize the main control circuit 38 and the like, and the key lock is continued even if the power switch 9 is turned on again. is doing.

As a result, when the key lock is set during standby, the key lock is held regardless of whether the power switch 9 is turned on or off, and the power switch 9 is turned on or off. It is possible to prevent the key input by the mischief of a child and improve the safety without performing the key lock setting operation for each operation.

Further, in the main control circuit 38, when the key lock is set during cooking with any heat source, the operation knobs 20, 21, 22 and the operation key 17 are turned off for some reason. If this happens, it may be configured to detect this and stop energizing the heat source, so that cooking is interrupted if it is a child's mischief, etc.
When it is desired to stop heating urgently due to kogation or boiling of the food to be cooked, the heat source can be stopped regardless of the setting of the key lock, and the safety can be improved.

Further, the main control circuit 38 is also provided.
For example, while pressing the lock key 10, the cancel key 14
By turning on for a predetermined time (for example, several seconds) at the same time, as shown in FIG. 4, for example, only the operated heat source (in FIG. 4, the operation unit for the induction heating coil 3) is set to the key lock state. In this case, the key lock lamp 24 and the indicators 11 and 1 only for the set heat source are used.
The key lock indicators 27, ... in 2 and 13 are turned on so that the set heat source can be easily understood.

When releasing the key lock,
For example, the lock key 10 may be configured to be released by turning on the lock key for a predetermined time (for example, several seconds), or may be configured to be released individually by performing the same operation as the above setting for each heat source. Is also good.

Further, in the above-mentioned embodiment, the key dedicated to the key lock is provided, but the present invention is not limited to this, and any key is also used, and the key lock lamp 24 is arranged in the vicinity of the used key. It may be configured like this.

[0039]

According to the structure of the present invention, when the key lock is set, the key lock setting is displayed by two or more kinds of display, so that the key lock setting can be surely confirmed visually. It is possible to prevent the failure judgment due to forgetting the setting as much as possible.

Further, according to the configuration of the present invention, the key lock can be set during cooking and during standby, so that when setting is performed during cooking, cooking is interrupted by mischief or the cooking time is changed. It is possible to prevent cooking failure and to prevent the heat source from being operated by a child's mischief or erroneous operation when set during standby.

Further, according to the configuration of the present invention, when the power switch is turned off when the key lock is set,
The heating operation is interrupted during cooking, and the key lock is continued during standby, thereby improving safety and improving usability.

Further, according to the configuration of the present invention, when the operation switch of the heat source is turned off at the time of setting the key lock,
Since the power supply to the heat source that was turned off is stopped, if the operation switch is turned off in an emergency,
The power supply to the heat source is stopped regardless of the setting of the key lock, and this can improve safety.

Further, according to the configuration of the present invention, the setting of the key lock can be set for each heat source. For example, if the key lock is set only for the heat source that cooks for a long time, the input operation of other heat sources can be performed. It becomes possible to freely perform, and the usability can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment according to the present invention.

FIG. 2 is a front view showing an embodiment of the operation panel of the same.

FIG. 3 is a block diagram showing an embodiment of a control circuit of the same.

FIG. 4 is a front view showing the operation of the operation panel of the same.

[Explanation of symbols]

1 Induction cooker body 3 induction heating coil 4 induction heating coil 5 Radiant heater 9 power switch 10 lock key 11 Display 12 Display 13 Display 17 Driving key 20 Operation picking 21 Operation picking 22 Operation picking 24 key lock lamp

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F24C 7/04 301 F24C 7/04 301A H05B 6/12 312 H05B 6/12 312 313 313 (72) Inventor Toshiya Nishimoto 3 201 Minamiyoshikata Minamiyoshikata, Tottori Prefecture Tottori Sanyo Electric Co., Ltd. (72) Inventor Masami Akari 3 201 Minamiyoshikata Minamiyoshikata, Tottori City, Tottori Prefecture (72) Inventor Takuo Ohara Tottori Prefecture Tottori-shi Minamiyoshikata 3-chome 201 Tottori Sanyo Electric Co., Ltd. F term (reference) 3K051 AB14 AD39 CD42 3L087 AA03 BA06 BA09 BC14 BC15 DA01 4B055 AA01 BA05 BA08 CD41 CD51 DB08 DB14 GB44 GC36 GC40

Claims (5)

[Claims] 1. A plurality of heat sources for heating an object to be cooked, a plurality of operation keys for inputting operating conditions and the like of the heat sources, and operating conditions and the like input from these operation keys are displayed at appropriate places on the appliance body. In a display arranged, a lock key for setting a key lock for invalidating an input operation from the operation key by a specific input operation is provided, and the display is included when the key lock is set by the lock key. Cooker characterized by displaying two or more types of displays. 2. The cooker according to claim 1, wherein the key lock by the lock key can be set even during cooking and during standby. 3. A plurality of heat sources for heating an object to be cooked, a plurality of operation keys for inputting operating conditions and the like of the heat sources, and operating conditions and the like input from these operation keys are displayed at appropriate places on the appliance body. The display and the power switch are arranged, and a lock key is provided to set a key lock that invalidates the input operation from the operation key by a specific input operation, and the power supply is turned on when the key lock is set by this lock key. When the switch is operated "OFF", the heating operation is stopped when "OFF" is operated during cooking, and the key lock is continued when "OFF" is operated during standby. Cooker characterized by. 4. When the operation key of the heat source is turned off when setting the key lock, the power supply to the heat source that has been turned off is stopped. The cooking device according to item 3. 5. The cooker according to claim 1, wherein the key lock is set for each heat source.