JP2012088015A - Heat cooking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To have a function of changing heating power between a plurality of degrees by long pushing a heating power setting key, and also detect a failure in the heating power setting key, while securing safety.SOLUTION: A heat cooking device includes a plurality of input keys including the heating power setting key 4 that can set the heating power of a heater 1 at plural degrees, and has a key failure detecting function for detecting the occurrence of a key failure such as multiple-pushing of any of the plurality of input keys or continuous pressing of singular key for a certain time period. The heating power setting key 4 includes a heating power-up key 4a for increasing the heating power of the heater 1 and a heating power-down key 4b for decreasing the output power of the heater. The heating power setting key 4 is configured such that the heating power of the heater 1 is changed by one degree when receiving an input of the heating power setting key 4 for a predetermined time, while the heating power of the heater 1 is decreased by a plurality of degrees only when receiving an input of the heating power-down key 4b for a predetermined time or more, and also a detection time for detecting the key failure is set longer than an ordinal detection time.

Description

  The present invention relates to a cooking device having an operation display unit used in general homes, restaurants and offices.

  Conventionally, as shown in FIG. 3, this type of cooking device includes a heating unit 101 that heats a load such as a pan, an operation display unit 102 that sets the operation of the heating unit 101 and displays the setting contents. Is provided.

  In the operation display unit 102, a heating key 103 for controlling on / off of the heating unit, a heating power of the heating unit 101 can be set in a plurality of stages, a heating power up key 104a for increasing the heating power, and a heating power down key 104b for decreasing the heating power. The thermal power setting key 104 having the thermal power display element 105 for displaying the thermal power set by the thermal power setting key 104, and the thermal power setting element that is disposed in the vicinity of the thermal power display element 105 and that can be set in the heating unit 101 are characters. Alternatively, a thermal power stage display element 106 for displaying by a symbol is provided.

  By these, the thermal power stage which can be set to the heating part 101 and the thermal power in use can be grasped visually.

  In the above configuration, each time the user presses the heating key 103, the user can control on / off of the heating unit 101, and each time the user presses the heating power up key 104a, the heating power of the heating unit 101 can be increased by one step, and the heating power down key 104b. Each time is pressed, the heating power of the heating unit 101 can be weakened by one step.

  Also, the set thermal power currently set in the heating unit 101 is displayed on the thermal power stage display element 106.

  Also, if the heating key 103 is in an abnormal state during the heating operation (a state in which multiple keys including the heating key 103 are repeatedly pressed or a single key is pressed for a certain period of time), safety is considered. Some stop the heating operation (see, for example, Patent Document 1).

JP 2003-279055 A

  In the conventional configuration, the heating power of the heating unit 101 can be increased or decreased by one step each time the heating power up key 104a or the heating power down key 104b is pressed once.

  However, the set thermal powers that can be set in the heating unit 101 are five stages of “1, 2, 3, 4, 5”, and in order to change from the thermal power setting “1” state to the thermal power setting “5”. The firepower down key 104b must be pressed four times, and vice versa. Therefore, it is troublesome for the user and it is difficult to change the heating power quickly.

As described above, when it is desired to change the heating power of the heating unit 101 significantly, the heating power setting key must be pressed many times, which is troublesome for the user and may cause a cooking error. Was.

  The present invention solves the above-described conventional problems, and can provide a user-friendly cooking device that can quickly change the heating power even when it is desired to significantly change the heating power setting being used. Objective.

  In order to solve the conventional problem, a heating cooker according to the present invention sets a heating unit, an operation of the heating unit, an operation display unit that displays the setting contents, and a plurality of heating powers of the heating unit. It has a plurality of input keys including a heating power setting key that can be set in stages, and a key abnormality such as multiple pressing on one of the plurality of input keys or continuous key pressing for a certain time has occurred. It has a key abnormality detection function to detect, and the thermal power setting key is composed of a thermal power up key for increasing the thermal power of the heating unit and a thermal power down key for decreasing the output of the heating unit, and the thermal power setting key is set to a predetermined value. When the time is received, the heating power of the heating unit is changed by one level, and only when the heating power down key is received for a predetermined time or more, the heating power of the heating unit is decreased by a plurality of levels, and the key abnormality The detection time to detect is obtained by the normal set longer constitutes.

  As a result, it is possible to satisfy both the case where the heating power of the heating unit is changed only by one step and the case where it is desired to reduce the heating power without increasing the heating power setting key at the same time. In addition, it is possible to quickly change the heating power while maintaining safety by having the key abnormality detection. Furthermore, since the heat setting key is not complicated, it is easy for the user to understand intuitively.

  When the heating cooker of the present invention changes the heating power setting of the heating unit, the heating power of the heating unit is changed by one step and the heating power of the heating unit is lowered by a plurality of steps by changing only how to accept the same heating power setting key. Thus, it is possible to provide a cooking device that is more convenient for the user while ensuring safety without complicating the heating power setting key.

The block diagram of the heating cooker in Embodiment 1 of this invention External view of the heating cooker in Embodiment 1 of the present invention Block diagram of a conventional cooking device

1st invention sets the operation | movement of the heating part, the said heating part, and the operation display part which displays this setting content, and several input including the thermal power setting key which can set the thermal power of the said heating part in several steps A key abnormality detection function for detecting that a key abnormality has occurred, such as a key being pressed multiple times on any of the plurality of input keys or being continuously pressed for a certain period of time, and the heating power The setting key includes a heating power up key for increasing the heating power of the heating unit and a heating power down key for decreasing the output of the heating unit. When the heating power setting key is received for a predetermined time, the heating power of the heating unit is changed by one step. In addition, only when the thermal power down key is received for a predetermined time or more, the thermal power of the heating unit is decreased by a plurality of stages, and the detection time until the key abnormality is detected is set longer than usual. It is obtained by a configuration in which. As a result, it is possible to perform both operations for changing the heating power of the heating unit in one step and for changing it in multiple steps without providing a new heating power setting key, and changing the heating power of the heating unit in multiple steps. By operating only the thermal power down key as an operation, it is possible to prevent the heating power of the heating part from being raised abnormally due to misuse or malfunction, thus improving operability while maintaining safety. Can be planned.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the operation display unit is configured to reduce the heating power of the heating unit at once in a plurality of stages when the heating power down key is received for a predetermined time or more. Thereby, since the heating power adjustment of a heating part can be performed quickly, operativity can be improved.

  The third aspect of the invention is particularly configured in any one of the first and second aspects, wherein the operation display unit gradually decreases the heating power of the heating unit one step at a time when the thermal power down key is received for a predetermined time or more. It is what. Thereby, since a user can perform the heating power adjustment of a heating part arbitrarily quickly, usability can be improved.

  According to a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the operation display unit changes the thermal power of the heating unit according to the length of time when the thermal power down key is received for a predetermined time or more. The stage is determined. As a result, an operation that is easy to understand intuitively for the user is possible, such as the longer the thermal power down key is pressed, the lower the thermal power of the heating unit is.

  According to a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, the operation display unit changes the thermal power of the heating unit according to the length of time when the thermal power down key is received for a predetermined time or more. The time interval is determined. Thereby, even when it is desired to significantly change the heating power of the heating unit, the heating power can be quickly changed, and convenience can be improved.

  In a sixth aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, the operation unit is arranged on a top plate provided on the top surface of the main body, and has a configuration of a capacitive touch panel key. is there. As a result, even when there is a key abnormality in a structure where inadvertent key input to the touch panel provided on the top surface such as a state where multiple presses or single presses are pressed for a certain period of time, it is possible to improve usability while improving safety. In addition, it is possible to easily deal with a key abnormality (such as wiping off dirt on the operation part) due to spillage or water adhesion. In addition, a stylish appearance design for the kitchen can be realized or improved.

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

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

  In FIG. 1, it has the heating part 1 which heats loads, such as a pan, and the operation display part 2 sets the operation | movement setting state of the heating part 1, performs the display corresponding to the setting state, a switch, LED, LCD It is composed of

  The operation of the above configuration will be described. When the user operates the switch of the operation display unit 2, the operation display unit 2 outputs an operation start or set fire power signal to the heating unit 1. Receiving this, the heating unit 1 starts the heating operation, or performs an operation such as changing the setting of the heating power for the heating operation.

  At the same time, the operation display unit 2 displays the set state of the heating unit. At this time, since the operation display unit 2 has an operation display element constituted by an LED or an LCD, the user can easily visually recognize in what setting state the heating unit 1 is operating. .

  For example, when heating the heating unit 1 and heating a load such as a pan, a heating power setting key 4 configured by the heating key 3 of the operation display unit 2 shown in FIG. 1, the heating power up key 4 a, and the heating power down key 4 b is used. Thus, the heating start and stop can be set every time the heating key 3 is pressed, and the heating heating power is changed by pressing the heating power up key 4a or the heating power down key 4b during the heating operation.

  Also, the setting of the heating thermal power can be changed in five stages: thermal power “5” 2500 W, thermal power “4” 2000 W, thermal power “3” 1500 W, thermal power “2” 1000 W, and thermal power “1” 500 W. .

  At the same time, the set state is displayed by turning on / off the heating display element 5 indicating the heating state of the heating unit and the heating power display element 6 indicating the heating power setting state.

  The heating display element 5 indicating the heating state is turned on when the heating operation is being performed, and is turned off when the heating is stopped.

  In addition, the thermal power display element 6 indicating the thermal power setting state has an LED corresponding to the thermal power that has been set, such as “5”, “4”, “3”, “2”, “1” in the present embodiment. Lights up.

  In the above configuration, in order to heat the heating unit 1, the heating key 3 is pressed for a predetermined time A (for example, 0.2 seconds) to accept the input on the operation display unit 2, and the heating unit 1 receives a heating operation signal. And the heating display element 5 indicating the heating state is turned on, and the initial heating power “3” of the heating unit 1 is displayed on the heating power display element 6 indicating the heating power setting state.

  That is, the operation display unit 2 receives the input when the heating key 3 is pressed for a predetermined time A (for example, 0.2 seconds), and the heating unit 1 that receives the heating operation signal from the operation display unit 2 The heating operation is started at the heating power “3”.

  Further, in order to change the set thermal power of the heating unit 1, the operation display unit 2 accepts the input by pressing the thermal power up key 4a or the thermal power down key 4b for a predetermined time A (for example, 0.2 seconds), and heating. A thermal power one-step change signal (thermal power increase signal or thermal power decrease signal) is output to the unit 1, and the thermal power “4” (thermal power up key 4a) after the change of the heating unit 1 is displayed on the thermal power display element 6 indicating the thermal power setting state. "When pressed" or "2" (when the thermal power down key 4b is pressed) is displayed.

  That is, every time the heating power setting key 4 is pressed for a predetermined time A (for example, 0.2 seconds), the operation display unit 2 receives the input, and the heating unit 1 receives a heating power one-step change signal (increase) from the operation display unit 2. (Or decrease), the heating power is changed to the heating power after the change, and the heating operation is continued.

  In addition, when any of the input keys (heating key 3, thermal power up key 4a or thermal power down key 4b) installed on the operation display unit 2 is pressed multiple times or pressed alone, a predetermined time A ( For example, when it is determined that the key is pressed for a predetermined time B (for example, 0.6 seconds) longer than 0.2 seconds, it is determined that an abnormality has occurred in the input key, and the key abnormality detection function operates.

When the key abnormality detection function is operated, when the heating unit 1 is in the heating operation, the heating operation is stopped and the key abnormality display element 7 installed in the operation display unit 2 is turned on. If the key abnormality detection function is activated while the heating unit 1 is not heating, the key abnormality display element 7 is turned on, and even if an input key (particularly the heating key 3) is pressed, the input is not accepted. Keeps the heating stopped.

  At this time, if the thermal power down key 4b is pressed for a predetermined time A (for example, 0.2 seconds) and the thermal power down key 4b continues to be pressed even after the key input is accepted, the thermal power down key 4b corresponds to the length of time of the pressing. And set the stage to change the firepower.

  That is, while the heating unit 1 is operating at the set thermal power “5” (the thermal power “5” is displayed on the thermal power display element 6 indicating the thermal power setting state), the thermal power down key 4b is operated for a predetermined time A (for example, 0. 0). 2 seconds), the thermal power setting is reduced by one step, but the thermal power down key 4b continues to be pressed even after the key input is received, and the length is, for example, 0.1 seconds or more and 0.2. If it is less than 2 seconds, the operation display unit 2 has a heating power, such as 2 steps, 0.2 steps or more and less than 0.3 seconds, 3 steps, 0.3 seconds or more and less than 0.4 seconds, 4 steps. The time during which the down key 4b is pressed is detected, and the heating power stage to be changed is determined according to the length of the time.

  Thus, by determining the stage of the thermal power to be changed according to the length of time that the thermal power setting key 4 is pressed, the user can quickly change the thermal power with fewer operations, and the operability is improved. Can be improved.

  Furthermore, the time from when the thermal power is reduced by one step until the next time when the thermal power down key 4b is pressed for a long time may be set gradually longer. That is, while the heating unit 1 is operating at the set thermal power “5” (the thermal power “5” is displayed on the thermal power display element 6 indicating the thermal power setting state), the thermal power down key 4b is operated for a predetermined time A (for example, 0. 0). 2 seconds) When pressed, the thermal power setting is reduced by one step. If the thermal power down key 4b is continuously pressed, the duration is, for example, not less than 0.1 seconds and less than 0.2 seconds. The operation display unit 2 presses the thermal power down key 4b in two steps, three steps if 0.2 seconds or more and less than 0.4 seconds, and four steps if 0.4 seconds or more and less than 0.8 seconds. It detects the time that is being used, and determines the stage of firepower to change according to the length of that time.

  As described above, the more the thermal power stages to be changed, the more the thermal power down key 4b needs to be pressed, so that the user can easily perform the thermal power down operation to an arbitrary thermal power. Mistakes can be reduced.

  At this time, the key abnormality detection function operates after the thermal power down key 4b is pressed for a long time and the thermal power is reduced by a plurality of steps.

  That is, when the thermal power down key 4b is pressed for a long time while the heating unit 1 is operating at the set thermal power “5”, first, a process of reducing the thermal power to 4 after a predetermined time A (for example, 0.2 seconds) has elapsed. Since the process is continued and pressed for a long time, a process for lowering the thermal power by one stage is performed every time a predetermined time elapses, and finally a process for lowering the thermal power by four stages is performed.

  If the thermal power down key 4b continues to be pressed for a predetermined time D (for example, 1.0 second) after the process of reducing the thermal power by four steps, the key abnormality detection function is activated and heating is performed. Stop.

  At this time, the time until the key abnormality detection function operates (predetermined time D) is determined when any of the input keys (the heating key 3, the heating power up key 4a, or the heating power down key 4b) is pressed multiple times or single pressed. The time until the key abnormality detection function operates (predetermined time C) is set.

That is, in the initial state or the heating state, the input key (heating key 3, heating power up key 4
If a multiple press or single press of either a or the thermal power down key 4b) is detected for a predetermined time C (for example, 0.6 seconds) or more, the key detection function is activated. When 4b is held down and the set thermal power is changed in multiple stages, after the set thermal power is changed to the minimum thermal power, the thermal power down key 4b is further pressed for a predetermined time D (for example, 1.0 second) or longer. The key abnormality detection function does not operate until it is detected.

  Thus, when the thermal power is changed by, for example, pressing the thermal power down key 4b for a long time, the time until the key abnormality is detected is set longer than usual, thereby ensuring the safety at the normal time. Even when the thermal power is changed by long-pressing the thermal power down key 4b or the like, the key abnormality detection does not operate frequently, which is convenient for the user.

  FIG. 2 is an external view of the heating cooker according to the first embodiment of the present invention.

  2, the operation display unit 2 is arranged on a top plate 9 provided on the top surface of the main body 8 shown in FIG. Thus, by using the capacitive touch panel key, the user can easily clean the operation display unit 2 and the like, which is convenient.

  As described above, according to the present embodiment, the thermal power setting key 4 for changing the thermal power level only by one level has the added value of changing the thermal power by a plurality of levels when the key is pressed for a long time. The key abnormality detection function that detects multiple presses and long presses sets the time until the key abnormality is detected longer than usual when the thermal power is changed in multiple stages by long pressing of the thermal power setting key 4. As a result, the usability of the user can be improved while maintaining safety.

(Embodiment 2)
Embodiments of the present invention will be described below with reference to the drawings. The basic configuration of the heating cooker is the same as the block diagram of the first embodiment shown in FIG.

  In order to change the set thermal power of the heating unit 1, the operation display unit 2 receives the input by pressing the thermal power up key 4 a or the thermal power down key 4 b for a predetermined time A (for example, 0.2 seconds), and the heating unit 1 A heating power one-stage change signal (a heating power increase signal or a heating power decrease signal) is output to the heating power display element 6 indicating the heating power setting state, and the heating power "4" (heating power up key 4a after the change of the heating unit 1 is pressed. Or “2” (when the thermal power down key 4b is pressed) is displayed.

  That is, every time the heating power setting key 4 is pressed for a predetermined time A (for example, 0.2 seconds), the operation display unit 2 receives the input, and the heating unit 1 receives a heating power one-step change signal (increase) from the operation display unit 2. (Or decrease), the heating power is changed to the heating power after the change, and the heating operation is continued.

  In addition, when any of the input keys (heating key 3, thermal power up key 4a or thermal power down key 4b) installed on the operation display unit 2 is pressed multiple times or pressed alone, a predetermined time A ( For example, when it is determined that the key is pressed for a predetermined time B (for example, 0.6 seconds) longer than 0.2 seconds, it is determined that an abnormality has occurred in the input key, and the key abnormality detection function operates.

When the key abnormality detection function is operated, when the heating unit 1 is in the heating operation, the heating operation is stopped and the key abnormality display element 7 installed in the operation display unit 2 is turned on. If the key abnormality detection function is activated while the heating unit 1 is not heating, the key abnormality display element 7 is turned on, and even if an input key (particularly the heating key 3) is pressed, the input is not accepted. Keeps the heating stopped.

  At this time, if the thermal power down key 4b is pressed for a predetermined time A (for example, 0.2 seconds) and the thermal power down key 4b continues to be pressed even after the key input is accepted, the thermal power down key 4b corresponds to the length of time of the pressing. And gradually change the firepower.

  That is, while the heating unit 1 is operating at the set thermal power “5” (the thermal power “5” is displayed on the thermal power display element 6 indicating the thermal power setting state), the thermal power down key 4b is operated for a predetermined time A (for example, 0. 0). 2 seconds), the operation display unit 2 transmits a signal for reducing the heating power by one step (in this case, the setting heating power “4”) to the heating unit 1 and sets the heating power. The display of the thermal power display element 6 indicating the state is changed by one level (in this case, thermal power “4”).

  Furthermore, if the thermal power down key 4b continues to be pressed even after the key input is accepted, the operation display unit 2 performs a process of reducing the thermal power setting by one step every time 0.1 seconds have elapsed. A signal for reducing the heating power by one step is transmitted to 1, and the display of the heating power display element 6 indicating the heating power setting state is changed by one step.

  That is, when the pressed time elapses 0.1 seconds, the set thermal power “3” is reached, and when the pressed time 0.1 seconds elapses further, the set thermal power “2” is elapsed, and the further pressed time 0.1 seconds elapses. Then, the setting firepower is changed to “1”.

  In this way, by detecting that the thermal power setting key 4 is kept pressed for a long time and changing the thermal power setting step by step, the user can easily change the thermal power with fewer operations, improving usability. be able to.

  Furthermore, the time from when the thermal power is reduced by one step until the next time when the thermal power down key 4b is pressed for a long time may be set gradually longer.

  That is, while the heating unit 1 is operating at the set thermal power “5” (the thermal power “5” is displayed on the thermal power display element 6 indicating the thermal power setting state), the thermal power down key 4b is operated for a predetermined time A (for example, 0. 0). 2 seconds), the operation display unit 2 transmits a signal (in this case, set thermal power “4”) for reducing the thermal power by one step to the heating unit 1 and displays the thermal power display element indicating the thermal power setting state by one level. Change (in this case firepower "4").

  Further, if the thermal power down key 4b is continuously pressed, the set thermal power is “3” when the pressed time has elapsed for 0.1 seconds, and the set thermal power “2” when the pressed time has elapsed for 0.2 seconds. In addition, when the pressed time is further 0.4 seconds, the setting power is changed to “1”.

  As described above, the more the thermal power stages to be changed, the more the thermal power down key 4b needs to be pressed, so that the user can easily perform the thermal power down operation to an arbitrary thermal power. Mistakes can be reduced.

  At this time, the key abnormality detection function operates after the thermal power down key 4b is pressed for a long time to perform a process of gradually decreasing the thermal power. That is, when the thermal power down key 4b is pressed for a long time while the heating unit 1 is operating at the set thermal power “5”, first, a process of reducing the thermal power to 4 after a predetermined time A (for example, 0.2 seconds) has elapsed. Since the process continues to be pressed for a long time, the process of reducing the thermal power by one step is performed each time a certain time elapses, and finally the process of decreasing the thermal power by four stages is performed (the set thermal power is the lowest thermal power). “1”).

If the thermal power down key 4b continues to be pressed for a predetermined time D (for example, 1.0 second) after the process of reducing the thermal power by four steps, the key abnormality detection function is activated and heating is performed. Stop.

  At this time, the time until the key abnormality detection function operates (predetermined time D) is determined when any of the input keys (the heating key 3, the heating power up key 4a, or the heating power down key 4b) is pressed multiple times or single pressed. The time until the key abnormality detection function operates (predetermined time C) is set.

  That is, in the initial state or the heating state, the multiple pressing or single pressing of any of the input keys (heating key 3, heating power up key 4a or heating power down key 4b) is performed for a predetermined time C (for example, 0.6 seconds) or more. Upon detection, the key detection function operates, but in the heating state, when the thermal power down key 4b is long pressed and the set thermal power is changed in stages, after the set thermal power is changed to the minimum thermal power, Furthermore, the key abnormality detection function does not operate until it is detected that the thermal power down key 4b is pressed for a predetermined time D (for example, 1.0 second) or longer.

  Thus, when the thermal power is changed by, for example, pressing the thermal power down key 4b for a long time, the time until the key abnormality is detected is set longer than usual, thereby ensuring the safety at the normal time. Even when the thermal power is changed by, for example, pressing the thermal power down key 4b for a long time, the key abnormality detection does not operate frequently, so that it is easy for the user to use.

  Further, the operation display unit 2 is arranged on a top plate provided on the top surface of the main body shown in FIG. Thus, by using the capacitive touch panel key, the user can easily clean the operation display unit 2 and the like, which is convenient.

  As described above, according to the present embodiment, the thermal power setting key 4 that changes the thermal power level only by one level has the added value of changing the thermal power in a stepwise manner when the key is held down, and the key The key abnormality detection function that detects multiple presses and long presses of the key, when the thermal power is changed stepwise by long press of the thermal power setting key 4, the time until the key abnormality is detected is longer than usual. By setting, the user-friendliness can be improved while maintaining safety.

  In this embodiment, the case where there is one heating unit is described. However, even when there are two or more heating units, the operation display unit corresponding to each heating unit detects a long press of each heating power setting key. By doing so, the same effect can be obtained.

  As described above, the heating cooker according to the present invention is constructed by a system using a microcomputer or the like and is operated without complicating the key arrangement of the operation display unit in the heating cooker having the operation display unit. Therefore, the present invention is effective not only for a home cooking device but also for a cooking device having a business operation display unit used in a restaurant kitchen or the like.

DESCRIPTION OF SYMBOLS 1 Heating part 2 Operation display part 3 Heating key 4 Thermal power setting key 4a Thermal power up key 4b Thermal power down key 5 Heating display element 6 Thermal power display element 7 Key abnormality display element

Claims (6)

A heating unit, an operation display unit for setting the operation of the heating unit and displaying the setting content, and a plurality of input keys including a heating power setting key capable of setting the heating power of the heating unit in a plurality of stages, A key abnormality detection function for detecting occurrence of a key abnormality such as multiple pressing on one of a plurality of input keys or a single key pressing continuously for a certain period of time; A heating power up key for raising the heating power of the heating section and a heating power down key for lowering the output of the heating section. When the heating power setting key is received for a predetermined time, the heating power of the heating section is changed in one step and the heating power down Only when the key is received for a predetermined time or longer, the heating power of the heating unit is reduced by a plurality of stages and the detection time until the key abnormality is detected is set longer than usual. . The cooking device according to claim 1, wherein the operation display unit reduces the heating power of the heating unit in a plurality of steps at a time when the heating power down key is received for a predetermined time or more. The cooking device according to claim 1 or 2, wherein the operation display unit gradually reduces the heating power of the heating unit one step at a time when the heating power down key is received for a predetermined time or more. The heating according to any one of claims 1 to 3, wherein the operation display unit is configured to determine a stage of changing the heating power of the heating unit according to a length of time when the heating power down key is received for a predetermined time or more. Cooking device. 5. The operation display unit according to claim 1, wherein the operation display unit is configured to determine a time interval for changing the heating power of the heating unit according to a length of time when the heating power down key is received for a predetermined time or more. Cooker. The cooking device according to any one of claims 1 to 5, wherein the operation unit is arranged on a top plate provided on a top surface of the main body and configured as a capacitive touch panel key.

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