JP5380115B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that heats an object to be heated by electromagnetic induction.

  In recent years, electromagnetic induction heating cookers that heat cooking containers such as pots by electromagnetic induction have become widespread due to their features of safety, cleanliness, and high thermal efficiency. Such an electromagnetic induction heating cooker is usually provided with an operation means for adjusting the heating power (for example, refer to Patent Document 1).

Japanese Unexamined Patent Publication No. 2003-323969 (page 4, FIG. 4)

  In the electromagnetic induction heating cooker as disclosed in the above-mentioned Patent Document 1, for example, the heating power adjustment of the burner is configured to be adjustable up to a dozen or so stages so that the food to be heated can be heated at a desired heating power level. Yes.

  In recent years, a capacitive touch sensor has been adopted as an operation key for adjusting the heating power of a burner and setting a timer because it is less likely to fail than a mechanical switch.

  In a conventional electromagnetic induction heating cooker, in order to set the heating power and the timer to desired values, a key for increasing the heating power or increasing the timer setting time (hereinafter referred to as “up key”), and the heating power. And a key (hereinafter referred to as a “down key”) for reducing the time of setting or decreasing the timer setting time. According to such an up key or down key, the user may be required to press the key many times in setting the burner fire power or timer setting time, and the user is forced to perform complicated operations. It was.

  In addition, the capacitive touch sensor may malfunction due to water or to-be-cooked food. For example, when spilling occurs during cooking, if the to-be-cooked food reaches the up / down key for setting the burner's heating power or timer, the electrostatic capacity type touch sensor detects the electrostatic charge caused by the to-be-cooked food. There was a problem that the capacity was detected, it was mistakenly recognized as being touched by a finger, and the electromagnetic induction heating cooker malfunctioned.

  The present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to set the burner's heating power, timer, etc. with a simple operation. An object of the present invention is to provide a heating cooker capable of preventing a malfunction caused by it.

  The heating cooker according to the present invention includes a heating unit that heats an object to be heated, an operation unit that is operated when the user touches with a finger, and that outputs a signal corresponding to the movement trajectory of the finger accompanying a circumferential operation. A detection means for detecting movement information of a finger touched by the operation means based on an output signal from the operation means; and a setting value of the heating means according to the finger movement information acquired by the detection means And control means for controlling.

Operating means comprises a plurality of electrodes, each electrode touches a finger in at least two electrodes at the same time, and, as the ratio of the area of the respective electrodes in accordance with the position of the touched and the finger varies, around a central axis to extend the arrangement has been clockwise and counterclockwise directions at every predetermined angle, the area becomes gradually smaller toward the distal end of each direction, Ru is composed of an annular electrode having an intricate shape with each other.

  The operation means may be a capacitive touch sensor.

  The finger movement amount information detected by the detection means may be at least one of a finger movement direction, a finger movement speed, and a finger movement distance.

  The set value of the heating means may be a set value for at least one of the heating power, the heating temperature, and the heating setting time of the heating means.

  When the movement speed or movement amount of the finger detected by the detection means is a positive value, the control means increases the set value according to the value, and the movement speed or movement amount of the finger is increased. In the case of a negative value, the set value may be decreased according to the value.

  The heating unit may be an electromagnetic induction heating unit that heats an object to be heated using electromagnetic induction.

According to the present invention, since the setting of the burner's heating power and the like can be performed with a simple finger operation, it is possible to provide a cooking device that is superior in operability compared to conventional cooking devices.
Further, even if the spilling blow adheres to the operation unit that sets the burner's heating power or the like, it is possible to prevent malfunction caused by this.

  Hereinafter, the electromagnetic induction heating cooker of this Embodiment is demonstrated according to an accompanying drawing.

1. Diagram 1 of a heating cooker, electromagnetic induction heating cooker T of the present embodiment (hereinafter, simply referred to as "cooker T".) Is a diagram showing a schematic configuration of FIG. 2, cooking FIG.

  As shown in FIGS. 1 and 2, the heating cooker T includes a top plate 2 on which a cooking container 1 such as a pan is placed, an operation unit including a plurality of operation keys and a display unit, and an output signal from the operation unit. A detection unit that detects movement information of the finger touched by the operation unit, a heating control unit 7 that controls the operation of the electromagnetic induction heating coil 8 according to the movement information of the finger acquired by the detection unit, And an electromagnetic induction heating coil 8 disposed below the top plate 2.

  The operation unit has operation keys (33A to 33D, 33T) to be pressed. Furthermore, it has the thermal power adjustment parts 30A-30D and the timer setting part 30T. The thermal power adjustment units 30A to 30D and the timer setting unit 30T each have an annular electrode 31 in order to detect a movement operation of the user's finger. The annular electrode 31 is printed or vapor-deposited on the back surface of the top plate 2, and the user traces the surface of the top plate 2 on each annular electrode 31 so that the thermal power of the burners A to D and the cooking object M can be seen. The heating time (hereinafter referred to as “heating setting time”) can be set. The operation units 3A to 3D and 3T also include display units 32A to 32D and 32T that display information such as the heating power and timer time set by various operation keys.

  The detection unit includes a button input detection unit 33 that detects an operation on an operation key (33A to 33D, 33T) on which a pressing operation is performed. Further, the capacitance detection unit 4 that detects the capacitance generated in each annular electrode 31, and the contact position of the finger on the annular electrode 31 is detected based on the capacitance detected by the capacitance detection unit 4. From the position detection unit 5 that outputs the position information and the finger position information obtained by the position detection unit 5 and its temporal change, the finger movement information (movement distance, movement speed, movement direction) is detected, It has a motion detector 6 that outputs to the heating controller 7.

  In FIG. 2, the top view of the heating cooker T is shown. The top plate 2 is formed of a heat resistant ceramic (glass) or the like. On the surface of the top plate 2, four circle marks 8 </ b> A to 8 </ b> D indicating areas where the cooking container 1 is placed are displayed, and electromagnetic induction heating coils 8 are respectively disposed at positions corresponding to the circle marks. Yes. The heating operation of the electromagnetic induction heating coil 8 is controlled by the heating control unit 7. In front of the burners A to D (downward in FIG. 2), operation units 3A to 3D for operating the burners are arranged.

  FIG. 3 is an enlarged view of a part of the operation unit provided on the surface of the top plate 2. 3A shows an operation unit 3A related to the burner A, and FIG. 3B shows an operation unit 3T related to timer setting.

  3A is constituted by an annular marking on the top plate 2 and an annular electrode 31 (FIG. 4) on the back surface thereof (the annular electrode 31 is formed on the back surface of the top plate 2 by printing or vapor deposition). To place.) The user adjusts the burning power of the burner by tracing the finger in the circumferential direction on the annular electrode 31 according to the annular marking on the top plate 2. The operation unit 3A includes a display 32A that displays the burner A thermal power level and an operation key 33A for switching the burner A to an on or off state. Further, the other thermal power adjustment units 3B to 3D have the same configuration.

  FIG. 3B is a diagram showing a timer setting unit 3T provided on the surface of the top plate 2. The user can set the heating setting time of the burner by tracing the finger in the circumferential direction on the annular electrode 31 according to the annular marking on the top plate 2. In addition, the display 32T which displays the heating setting time of the set burner, and the burner selection key 33T for selecting either burner AD are included.

  Thus, in the heating cooker T of the present embodiment, the user can set the burner's heating power and the heating setting time by tracing the finger in the circumferential direction on the operation portion of the top plate 2. Since the user can easily and sensibly operate, the operability of the operation unit can be improved.

1.1 Annular Electrode Here, the annular electrode 31 constituting each of the heating power adjustment units 30A to 30D and the timer setting unit 30T will be described in detail. FIG. 4 is a plan view showing the configuration of the annular electrode 31.

  The annular electrode 31 is composed of three electrodes 31A, 31B, and 31C, and is configured such that the ratio of the area of each electrode changes according to the position (angle) of the finger touching.

  As shown in FIG. 4, the annular electrode 31 is composed of three electrodes 31 </ b> A to 31 </ b> C arranged every 120 ° in the circumferential direction. Each of these electrodes 31 </ b> A to 31 </ b> C extends clockwise and counterclockwise around 0 °, 120 °, and 240 ° positions. The shape of each electrode 31A-31C is comprised by the four petal shape by which the front-end | tip was formed in the taper shape. The electrodes 31 </ b> A to 31 </ b> C are interlaced along a geometric curve and are arranged around the central axis of the annular electrode 31. Each electrode 31A-31C is mutually insulated. With this arrangement, the finger always touches at least two electrodes regardless of the position of the annular electrode 31 in the circumferential direction.

  The annular electrode 31 has different areas occupied by the electrodes 31A to 31C according to the angle in the circumferential direction, that is, the angular position. That is, the area of the electrode 31C is larger than the areas of the electrodes 31A and 31B at 0 ° and the vicinity thereof, and the area of the electrode 31A is larger than the areas of the electrodes 31B and 31C at 120 ° and the vicinity thereof. In the angle region and the vicinity thereof, the area of the electrode 31B is larger than the areas of the electrode 31A and the electrode 31C.

  As the annular electrode 31 moves in the clockwise direction (arrow direction) from 0 ° and the vicinity thereof, the electrode 31C gradually tapers and its area decreases, while the electrode 31A gradually expands. , Its area goes up. The area of the electrode 31A is the largest at 120 ° and the vicinity thereof, and the area of the electrode 31C is almost zero.

  Similarly, when moving clockwise from 120 ° and its neighboring region, the area of the electrode 31A gradually decreases, while the area of the electrode 31B increases, and the electrode 31B reaches 240 ° and its neighboring region. The area becomes the largest, and the area of the electrode 31A is almost zero.

  Similarly, when moving clockwise from 240 ° and its neighboring region, the electrode 31B gradually decreases, while the electrode 31C gradually increases, and the electrode at 0 ° (360 °) and its neighboring region is gradually increased. The area of 31C is the largest, and the area of electrode 31B is almost zero.

  FIG. 5 shows the relationship between the contact position (angle) of the finger on the annular electrode 31 and the 31A to 31C capacitance detected by each electrode. When the finger is in contact with the region near 0 ° of the annular electrode 31 (via the top plate 2), the capacitance of the electrode 31C is maximized as shown in FIG. As the contact position is further moved in the clockwise direction, the capacitance of the electrode 31C gradually attenuates, while the capacitance of the electrode 31A gradually increases. When the contact position moves to a region near 120 °, the capacitance of the electrode 31C becomes zero and the capacitance of the electrode 31A becomes maximum.

  When the contact position is moved further clockwise from the region near 120 °, the capacitance of the electrode 31A gradually attenuates, while the capacitance of the electrode 31B gradually increases. When the contact position moves to a region near 240 °, the capacitance of the electrode 31A becomes zero and the capacitance of the electrode 31B becomes maximum.

  Further, when the contact position is moved in the clockwise direction from the region near 240 °, the capacitance of the electrode 31B gradually attenuates, while the capacitance of the electrode 31C gradually increases. When the contact position moves to a region near 0 ° (360 °), the capacitance of the electrode 31B becomes zero and the capacitance of the electrode 31C becomes maximum. As described above, the capacitance of each of the electrodes 31 </ b> A to 31 </ b> C changes according to the contact position of the finger on the annular electrode 31. Thereby, the position detection part 5 is based on the electrostatic capacitance of each electrode 31A-31B obtained with the electrostatic capacitance detection part 4, and the relationship between the electrostatic capacitance of each electrode shown in FIG. 5, and a contact position (angle). Thus, the contact position of the finger on the annular electrode 31 can be detected.

  Further, whether the contact position on the annular electrode 31 is moving in the positive direction (clockwise direction) or in the negative direction (counterclockwise direction), and the moving speed is determined according to the time change of the contact position. it can. These are calculated by the motion detector 6.

  In the present embodiment, the example in which the annular electrode 31 is configured by the three electrodes 31A to 31C has been described. However, the configuration of the annular electrode 31 is not limited thereto. Regardless of where the finger touches the circumferential direction, each electrode is arranged so that the finger touches at least two electrodes, and the ratio of the area of each annular electrode according to the contact position (angle) of the finger on the annular electrode If it is comprised so that may change, you may be comprised from four or more annular electrodes, for example.

  Further, in the present embodiment, it is configured with a so-called capacitive touch sensor that detects a capacitance that changes when a user's finger comes into contact. However, the present invention is not limited to this, and for example, a pressure-sensitive touch sensor or An inductive touch sensor or an optical touch sensor may be used.

2. Input Operation An input operation to the heating power adjusting units 30A to 30D and the timer setting unit 30T of the operating units 3A to 3D and 3T configured as described above will be described with reference to FIGS. FIG. 6 is a diagram showing a case where the user sets and inputs the thermal power of the burner A, and FIG. 7 is a diagram showing a case where the user sets and inputs the heating setting time of the selected burner.

  In order to make a setting input for increasing the thermal power of the burner A (this figure sets the thermal power of the burner A), the user first presses the operation key 33A (see FIG. 2) for the burner A with his finger. Is turned on. Then, as shown in FIG. 6A, the top plate 2 is traced in the positive direction (clockwise direction) with the finger along the annular region of the burner A thermal power adjusting unit 30A. As a result, the thermal power of the burner A is controlled to increase, and accordingly, the thermal power level display of the display 32A changes as “00 → 01 → 02 → 03”. On the other hand, when setting input for decreasing the thermal power of the burner A is performed, as shown in FIG. 6B, the negative direction (counterclockwise direction) is indicated along the annular region of the thermal power adjusting unit 30A. Trace. Thereby, the thermal power of the burner A is controlled to decrease, and accordingly, the thermal power level display of the display 32A changes as “12 → 11 → 10 → 09”.

  In order to set the burner's heating power to, for example, “03” or “09”, when the heating power level of the indicator 32A becomes “03” or “09”, the finger is moved from the annular region of the heating power adjusting unit 30A. You can release them. When turning off the burner A, the operation key 33A (see FIG. 2) is pressed again with a finger.

  Next, the case where the heating setting time of the burner is set and input will be described. First, the user operates the burner selection key 33T (see FIG. 2) to select the burner to be used. The push button operation here is detected by the button input detection unit 33 and output to the heating control unit 7. When performing a setting input for increasing the heating setting time of the selected burner, as shown in FIG. 7A, along the annular area of the timer setting unit 30T, the top plate 2 is moved in the positive direction with a finger. Trace (clockwise). Thereby, the heating setting time increases, and accordingly, the heating setting time of the display 32T is sequentially switched to “0 minute → 1 minute → 2 minutes → 3 minutes”. On the other hand, when the setting input for decreasing the heating setting time of the selected burner is performed, it is traced in the negative direction (counterclockwise direction) as shown in FIG. As a result, the heating setting time is reduced, and accordingly, the heating setting time of the display 32T is sequentially switched as “31 minutes → 30 minutes → 29 minutes → 28 minutes”.

  In order to set the heating setting time of the selected burner to, for example, “3 minutes” or “28 minutes”, the timer is set when the heating setting time of the display 32T becomes “3 minutes” or “28 minutes”. The finger may be released from the annular region of the portion 30T.

  As described in the present embodiment, the burner heating setting time does not necessarily need to be set for each burner. For example, four burners may be set at the same time according to the use state of the heating cooker T. Also good.

3. Operation Input Detection Method An operation input detection method in the heating power adjustment units 30A to 30D and the timer setting unit 30T will be described. Operation inputs in the thermal power adjustment units 30A to 30D and the timer setting unit 30T are detected by the capacitance detection unit 4, the position detection unit 5, and the motion detection unit 6.

  The electrostatic capacitance detection unit 4 detects the electrostatic capacitance of each of the electrodes 31A to 31C of the annular electrode 31 constituting each of the heating power adjustment units 30A to 30D and the timer setting unit 30T. (In the case of this embodiment, there are five annular electrodes 31, and there are three electrodes per annular electrode, so there are a total of 5 × 3 = 15 electrodes.)

  The position detection unit 5 receives the capacitance of each of the electrodes 31A to 31C detected by the capacitance detection unit 4, and determines the contact position of the finger in the ring-shaped region according to the relationship of the capacitance shown in FIG. Then, position information indicating the contact position is output to the motion detector 6. For example, when the ratio of the detected capacitance is 95 for the electrode 31A, 5 for the electrode 31B, and 0 for the electrode 31C, the position of the finger touching the ring-shaped region of the annular electrode 31 is approximately 120 °. It is judged.

  The motion detector 6 sequentially receives position information from the position detector 5 at predetermined time intervals, obtains finger movement information based on the finger position information, and outputs it to the heating controller 7 as operation information. Specifically, the motion detection unit 6 detects that the finger is in the positive direction (clockwise direction) or the negative direction (counterclockwise direction) in the annular region of the annular electrode 31 from the change in the contact position indicated by the position information. Determine if you are moving. Further, the movement amount and / or movement speed of the finger is calculated from the time change of the position information.

  The heating control unit 7 mainly includes an inverter circuit, a CPU, a ROM, a RAM, a clock circuit, an input / output port, and the like. Based on the input signal input from the operation unit, the heating power of each electromagnetic induction heating coil 3 and each burner A It is comprised so that the time from the heating start in ~ D to reaching a predetermined heating temperature may be controlled.

  The heating control unit 7 executes the following control based on the operation information input from the motion detection unit 6.

  When the finger movement direction is positive (clockwise direction) based on the finger movement direction detected by the motion detection unit 6, the heating control unit 7 generates the heating power of each electromagnetic induction heating coil 8, that is, each When the amount of electric power applied to the electromagnetic induction heating coil 8 is controlled to be increased and the finger movement direction is negative (counterclockwise direction), the heating power of each electromagnetic induction heating coil 8, that is, each electromagnetic induction heating Control is performed to reduce the amount of power applied to the coil 8.

  Further, the heating control unit 7 sets an increase / decrease amount of the burner's heating power level in accordance with the finger speed detected by the motion detection unit 6. That is, the heating control unit 7 controls the amount of power applied to the electromagnetic induction heating coil 8 based on the amount of finger movement detected by the motion detection unit 6.

  When the movement speed or movement amount of the finger calculated by the movement detection unit 6 is zero and the movement direction cannot be detected (in a state where the movement of the finger is stopped), the heating control unit 7 does not change the heating power level of the burner. . By not setting the burner fire level when the finger movement speed is zero, there are the following advantages.

  Blowing may occur, and water droplets or an object to be cooked M may adhere to a part of the annular electrode region on the top plate 2. This also changes the capacitance of the annular electrode 31. Therefore, if no movement is detected, the operation of the burner may be misrecognized as a result of some operation input depending on the situation, and the risk of malfunction may occur. There is. For the reason of eliminating such danger, if the moving speed (movement) of the object (finger, heated object M, water droplet, etc.) on the annular electrode is zero, do not execute the setting of the burner thermal power level. Yes. In addition, it is unlikely that the to-be-cooked object M or water droplets flow along the ring-shaped region of the annular electrode 31, and in this method, it is unlikely that the heating power is greatly changed due to erroneous recognition. Further, there is no need for a bank-like partition for preventing the blow-off from adhering to the operation portion on the top surface, and there is an effect that the top surface can be made completely flat.

  In the present embodiment, an example in which the heating control unit 7 controls the amount of power applied to the electromagnetic induction heating coil 8 based on the finger movement direction and the finger movement amount detected by the motion detection unit 6 has been described. However, the present invention is not limited thereto, and the amount of power applied to the electromagnetic induction heating coil 8 may be controlled based on the moving speed of the finger calculated by the motion detector 6. Specifically, when the finger movement speed calculated by the motion detector 6 is large, the amount of change in the burner's thermal power level is increased correspondingly, and when the finger movement speed is low, the burner's movement speed is correspondingly increased. The amount of change in the thermal power level may be reduced. Thereby, if it turns early, a thermal power will change a lot and usability will improve more.

  The burner thermal power setting using the annular electrode has been described above, but the same applies to the timer time setting.

  In the present embodiment, the example in which the heating control unit 7 sets the burner heating power level and the burner heating setting time based on the finger movement information has been described, but the setting target is not limited to this. For example, the setting value of the heating temperature may be changed based on finger movement information.

  The cooking device T of the present embodiment can easily adjust the burner heating power level and the heating setting time by tracing the area on the annular electrode 31 with a finger. Thereby, the cooking-by-heating machine excellent in operativity compared with the conventional cooking-by-heating machine can be provided. Further, the movement of the object (finger) in the region on the annular electrode 31 and the direction of the movement are detected to adjust the burner's heating power level and the heating setting time, so that the water droplets and the food to be cooked M adhere to the operation unit. Even if it is, the outstanding cooking device which can suppress the malfunction resulting from this can be provided.

4). Detailed Operation During Operation With reference to the flowchart of FIG. 8, the heating power level setting operation of the burner of the heating cooker T will be described. In this setting operation example, a setting operation when the user selects the burner A and sets the thermal power level of the burner A will be described.

  (Step S10) The user first operates the operation key 33A provided on the top plate 2 to turn on the burner A.

  (Step S <b> 11) The electrostatic capacitance detection unit 4 detects the electrostatic capacitances of the electrodes 31 </ b> A to 31 </ b> C of the annular electrode 31, and sequentially detects changes in the electrostatic capacitance of each electrode accompanying the movement of the user's finger.

  (Step S12) The position detection unit 5 receives information on the capacitance values of the electrodes 31A to 31C detected by the capacitance detection unit 4, and according to the relationship between the capacitance and the position shown in FIG. Determine the position of the finger. This position information is output to the motion detector 6.

  (Step S <b> 13) The motion detector 6 determines whether the finger is moving in the positive direction (clockwise direction) or in the negative direction (counterclockwise) based on the time change of the finger position information obtained by the position detector 5. Determine whether the robot is moving in the direction of rotation). Further, the movement amount and / or speed of the finger is calculated.

  (Step S14) Based on the movement amount and / or movement speed of the finger calculated by the movement detector 6, the presence or absence of the movement of the finger of the user is determined. If it is determined that there is a finger movement (YES in step S14), the process proceeds to step S15. On the other hand, if it is determined that there is no finger movement (NO in step S14), the setting of the burner A's heating power level is not changed, and the process is terminated (step S17). By this operation for determining the presence or absence of finger movement, even when a water drop or an object to be cooked adheres to the operation unit, it is possible to suppress malfunction caused by the operation.

  (Step S15) The process is branched depending on the moving direction of the finger. If it is determined that the finger is moving in the forward direction (clockwise direction), the thermal power level is increased in step S16 according to the moving amount and moving speed. That is, the amount of power applied to the electromagnetic induction heating coil 8 is increased. When it is determined that the finger is moving in the negative direction (counterclockwise direction), the thermal power level is decreased according to the movement amount and the movement speed. That is, the amount of power applied to the electromagnetic induction heating coil 8 is reduced.

  After that, when the user presses the operation key 33A again, or when the heating setting time set by the timer has elapsed, the burner A is turned off and the heating process is ended.

  FIG. 9 is a flowchart showing the setting operation (timer setting) of the heating setting time of the burner. The operation of FIG. 9 is substantially the same as the thermal power level setting operation shown in FIG. Also in the heating time setting, the heating setting time is increased or decreased in accordance with the finger operation as shown in FIG. 7 (steps S27 and S29). In addition, when setting heating setting time, a user selects the burner to set with the burner selection key 33T of the timer setting part 3T immediately after a start (step S21).

  In the present embodiment, the setting of the burner thermal power level and the heating setting time is performed based on the movement amount of the finger along the ring-shaped region of the annular electrode 31, but instead, the ring-shaped The moving speed of the finger from the start point to the end point in the region may be used as a parameter.

  The embodiments disclosed herein are illustrative and not limiting. The present invention is defined by the terms of the claims, rather than the scope described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is the figure which showed schematic structure of the heating cooker T of this Embodiment. 2 is a plan view of a heating cooker T. FIG. It is the figure which showed the heating power adjustment part and timer setting part which were formed in the surface of the top plate. 3 is a plan view showing a configuration of an annular electrode 31. FIG. It is the graph which showed that an electrostatic capacitance changed according to the position where a finger touches annular electrode 31. It is the figure which showed the method in which a user sets and inputs the thermal power of a burner. It is the figure which showed the method in which a user inputs a setting about the heating setting time of the selected burner. It is a flowchart explaining the setting operation | movement of the thermal power level of a burner. It is a flowchart explaining the setting operation | movement of the heating setting time of a burner.

DESCRIPTION OF SYMBOLS 1 Cooking container 2 Top plate 4 Capacitance detection part 5 Position detection part 6 Motion detection part 7 Heating control part 8 Electromagnetic induction heating coil 31 Annular electrode 32 Display part 33 Button input detection part T Heating cooker

Claims (6)

Heating means for heating an object to be heated;
An operation means that is operated when the user touches with a finger and outputs a signal corresponding to the movement trajectory of the finger accompanying the circumferential operation;
Detection means for detecting movement information of a finger touched by the operation means based on an output signal from the operation means;
Control means for controlling a set value of the heating means in accordance with finger movement information acquired by the detection means;
The operation means comprises a plurality of electrodes, and each electrode has a central axis so that the finger touches at least two electrodes simultaneously, and the ratio of the area changes according to the position of the touching finger. A cooking device composed of annular electrodes that are arranged around each other and extend in a clockwise direction and a counterclockwise direction, and gradually decrease in area toward the tip in each direction, and have interdigitated shapes . . The cooking device according to claim 1 , wherein the operation means is a capacitive touch sensor. Movement amount information of the finger which the detecting unit detects the moving direction of the finger, at least one of a moving distance of the moving speed and the finger, according to claim 1 or claim 2, characterized in that Cooking device. The cooking value according to any one of claims 1 to 3 , wherein the setting value of the heating means is a setting value for at least one of a heating power, a heating temperature, and a heating setting time of the heating means. vessel. When the movement speed or movement amount of the finger detected by the detection means is a positive value, the control means increases the set value according to the value, and the movement speed or movement amount of the finger is a negative value. In the case of the above, the set value is decreased according to the value, and the cooking device according to claim 4 . The cooking device according to any one of claims 1 to 5 , wherein the heating unit is an electromagnetic induction heating unit that heats an object to be heated using electromagnetic induction.

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