CN114501710A - Induction heating cooker and computer-readable recording medium - Google Patents

Abstract

The present disclosure provides an induction heating cooker and a computer-readable recording medium. The induction heating cooker according to the present disclosure includes: a heating coil; a power switch; a multi-function switch to which different functions are assigned according to conditions; a display unit that displays an image object; and a control unit that controls an operation based on a predetermined operation mode among the plurality of operation modes. The plurality of operation modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on. The control section can control the operation based on the single operation heating mode. The single operation heating mode is the following action mode: the control unit causes the display unit to display an image object indicating the start of heating, associates the multi-function switch with the image object indicating the start of heating, and executes a heating operation using the heating coil when an input operation to the multi-function switch is detected.

Description

Induction heating cooker and computer-readable recording medium

Technical Field

The present disclosure relates to an induction heating cooker and a computer-readable recording medium in which a computer program executed by a computer of the induction heating cooker is recorded.

Background

Induction heating cookers are widely used in kitchens, business use, and the like in general households. International publication No. 2009/001513 discloses an induction heating cooker that starts heating when a user receives 2 operations after a power switch is turned on.

Disclosure of Invention

In the case where a user wants to perform heating using the induction heating cooker of international publication No. 2009/001513, the user needs to perform a plurality of operations after the power is turned on. Some users are complicated, and there is room for improvement in the operability of the induction heating cooker disclosed in international publication No. 2009/001513.

The present disclosure provides an induction heating cooker capable of improving operability, and a computer-readable recording medium in which a computer program executed by a computer of the induction heating cooker is recorded.

The induction heating cooker of 1 mode of this disclosure includes: a heating coil for induction-heating an object to be heated; the power switch is used for connecting a power supply; a multi-function switch to which different functions are assigned according to conditions; a display unit that displays an image object; and a control unit that controls an operation based on a predetermined operation mode among the plurality of operation modes. The plurality of operation modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on. The control section can control the operation based on the single operation heating mode. The single operation heating mode is the following action mode: the control unit causes the display unit to display an image object indicating the start of heating, associates the multi-function switch with the image object indicating the start of heating, and executes a heating operation using the heating coil when an input operation to the multi-function switch is detected.

The computer program recorded in the computer-readable recording medium of the 1 aspect of the present disclosure is executed by the control unit of the induction heating cooker. The induction heating cooker is provided with: a heating coil for induction-heating an object to be heated; the power switch is used for connecting a power supply; a multi-function switch to which different functions are assigned according to conditions; a display unit that displays an image object; and a control unit as a computer that controls an operation based on a predetermined operation mode among the plurality of operation modes. The plurality of operation modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on. The computer program enables the control section to control the operation based on the single operation heating mode. The computer program causes the control section to execute the following processing in the single operation heating mode: a process of displaying an image object indicating the start of heating on a display unit; a process of associating the multi-function switch with the image object indicating the start of heating; and executing a process of a heating operation using the heating coil when an input operation to the multifunction switch is detected.

According to the present disclosure, the operability of the induction heating cooker can be improved.

Drawings

Fig. 1 is a perspective view of an induction heating cooker according to an exemplary embodiment.

Fig. 2 is a block diagram showing a control system of the induction heating cooker according to the present embodiment.

Fig. 3 is a schematic diagram of the structure of the induction heating cooker.

Fig. 4 is a partial schematic view of the operation unit and the display unit.

Fig. 5 is a partially enlarged view of the periphery of the operation unit and the display unit.

Fig. 6 is a diagram showing the display contents of the display unit immediately after the power is turned on.

Fig. 7 is a diagram showing the display contents of the display unit after the heating operation is started.

Fig. 8 is a diagram showing an example in which a multifunction switch or the like is displayed on the display unit.

Fig. 9 is a flowchart showing a procedure of processing of the control section of the single operation heating mode.

Fig. 10 is a flowchart showing a procedure of processing of the control section based on a modified example of the single operation heating mode.

Fig. 11 is a flowchart showing a procedure of processing by the control unit including transition to the standby mode.

Fig. 12 is a display example of the display unit when the standby mode is automatically shifted after a certain time has elapsed.

Fig. 13 is a diagram showing transition of display on the display unit before and after power-on when the "single operation heating mode" is set to "grill".

Fig. 14 is a diagram showing transition of display on the display section before and after power-on when the "single operation heating mode" is set to "frying".

Fig. 15 is a display example of a display unit capable of restarting heating based on the same setting.

Fig. 16 is a flowchart showing a procedure of the interruption/restart process at the time of the single operation heating mode.

Fig. 17 is a schematic diagram of an electronic circuit board 250 in the periphery of the operation portion.

Fig. 18 is a diagram showing a relationship between a rectangular touch switch and a guard electrode constituting the multifunction switch.

Detailed Description

As described above, in the induction heating cooker of international publication No. 2009/001513, the minimum number of operations from the time when the power is turned on to the time when heating is started is 2. Even if it is desired to start heating with as few operation times as possible, it is preferable to avoid starting heating with 0 operation times without performing further operation after the power is turned on. This is because, for example, the power switch may be unintentionally pressed by an erroneous operation to turn on the power of the induction heating cooker.

The inventors of the present application have developed an induction heating cooker capable of starting heating by the number of operations of 1 time, which is the first operation after the power is turned on. In the present specification, the term "start of heating" means that heating is performed by starting the supply of electric power, with the temperature actually rising.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings as appropriate. However, the above detailed description may be omitted. For example, detailed descriptions of already known matters and repetitive descriptions of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description, which will be readily understood by those skilled in the art. The present inventors have provided the drawings and the following description in order to fully understand the present disclosure, but do not limit the subject matter described in the scope of the claims.

(1) Detailed description of the preferred embodiments

(1-1) overview

An induction heating cooker according to an embodiment of the present disclosure will be described below with reference to fig. 1 to 3.

Fig. 1 is a perspective view of an induction heating cooker 1 according to an exemplary embodiment. Fig. 2 is a block diagram showing a control system of the induction heating cooker 1 according to the embodiment. Fig. 3 is a diagram schematically showing the structure of the induction heating cooker 1.

In addition to fig. 1 and 3, an X-axis, a Y-axis, and/or a Z-axis are shown in a portion of the drawings to which the present disclosure relates. When the user faces the induction heating cooker when the induction heating cooker is used, the X-axis direction indicates the width direction (long side direction) of the heating cooker, the Y-axis direction indicates the depth direction (short side direction), and the Z-axis direction indicates the height direction. The positive direction of the X axis is the right direction, and the negative direction is the left direction. The positive direction of the Y axis is set as the rear, and the negative direction is set as the front.

Induction heating cooking apparatus

First, a general structure of the induction heating cooker 1 according to the present disclosure will be described.

As shown in fig. 1, the induction heating cooker 1 includes a main body 3 and a top plate 5, and the top plate 5 is used for placing a container on the upper surface of the main body 3. The container contains, for example, a container as an object to be heated, and a container as an object to be heated contains ingredients to be cooked such as stew.

Heating coils 7, 8, and 9 are disposed inside the main body 3 of the induction heating cooker 1, more specifically, at positions below (on the Z side) the container placement region of the top plate 5 of the induction heating cooker 1. The heating coils 7 to 9 generate an induction magnetic field for induction heating of the container. The heating cooker 1 includes 3 heating coils 7 to 9, but may include 1, 2, or 4 or more heating coils.

The induction heating cooker 1 is provided with operation units 19, 20, and 21 for operating the heating coils 7, 8, and 9, respectively. That is, the heating coils 7, 8, and 9 are "associated with" the operation units 19, 20, and 21, respectively. In this way, in the present specification, the components provided for the heating coils 7, 8, and 9 are referred to as "corresponding" components to the heating coils.

As shown in fig. 1, ring-shaped marks 11, 12, 13 indicating container placement areas are printed on the top plate 5 on the upper side (+ Z side) of the heating coils 7 to 9 so as to "correspond" to the heating coils 7, 8, 9, respectively.

Light emitting units 15 and 16 that emit light in a ring shape are arranged outside the heating coils 7 and 8 on the top plate 5 in a plan view. Further, an arc-shaped light emitting section 17 is disposed on the top plate 5 on the front side (-Y side) of the heating coil 9. The light emitting sections 15 to 17 emit light when current flows through the corresponding heating coils 7 to 9, for example. The light emitting portions 15 to 17 have LED light emitting substrates, not shown, for example.

Further, a temperature sensor 18 is disposed below the top plate 5 inside the marks 11 to 13. The detection value detected by the temperature sensor 18 is sent to the control unit 31. The control unit 31 adjusts the amount of current flowing through the heating coils 7-9 while referring to the detected temperature value, and determines the timing for performing the auxiliary guidance of the cooking method.

Operation units 19, 20, and 21 are disposed on the front side (-Y side) of top plate 5 of induction heating cooker 1. The operation units 19, 20, and 21 are used for the user to operate the heating coils 7 to 9, respectively. The operation unit 19 is provided for operating the heating coil 7, the operation unit 20 is provided for operating the heating coil 8, and the operation unit 21 is provided for operating the heating coil 9. In the present specification, the operation unit 19 corresponds to the heating coil 7, the operation unit 20 corresponds to the heating coil 8, and the operation unit 21 corresponds to the heating coil 9.

Display units 23, 24, and 25 are disposed between the heating coils 7 to 9 and the operation units 19 to 21, respectively, on the front side of the top plate 5 of the induction heating cooker 1. The display units 23, 24, and 25 display the states of the operation targets of the operation units 19 to 21, respectively. The operations of the display units 23 to 25 are controlled by a control unit 31 described later.

Each of the display units 23 to 25 is provided with a dot matrix liquid crystal display device. The dot matrix liquid crystal display device is, for example, a full dot liquid crystal display panel having a band shape extending in the width direction of the top plate 5.

The display units 23 to 25 display the state of the operation object and the content of the operation of the heating coils 7 to 9 as image objects. For example, the display unit 23 displays the operation of the heating coil 7, the display unit 24 displays the operation of the heating coil 8, and the display unit 25 displays the operation of the heating coil 9.

The image objects are text and/or images. For example, an image object is the word "heat". In this case, the induction heating cooker 1 is shown to be capable of performing a heating operation using the heating coils 7 to 9 corresponding to the display sections 23 to 25. The display units 23 to 25 may display an image object indicating the character "start" for starting heating together with the character "heating". After the heating is started, the display units 23 to 25 may display image objects such as numerals and icons indicating the magnitude of the heating amount (heating power) of the heating coils 7 to 9.

The display units 23 to 25 may be liquid crystal display devices that display in a segment manner. The text and/or image displayed using 1 or more segments is the category of the above-described image object.

The main body 3 is provided with a speaker 27 for outputting information relating to heating of the heating coils 7 to 9. The speaker 27 is disposed on the front side of the induction heating cooker 1, and outputs an audio guidance to the user.

As shown in fig. 2, the induction heating cooker 1 includes a control unit 31 and a storage unit 33 inside the main body 3. The control unit 31 includes a signal processing circuit such as a CPU or a microcontroller (microcomputer). The storage unit 33 is a recording medium such as a ROM, a RAM, a hard disk, and an SSD. The storage unit 33 stores a computer program for operating the induction heating cooker 1. The control unit 31 is configured to implement various functions described later by executing the computer program.

The control unit 31 executing the computer program functions as a coil control unit 35 that controls the amount of current flowing through the heating coils 7 to 9, a guidance information control unit 37 that controls the display area of the display units 23 to 25 and controls the display output of guidance information, and a cooking guidance control unit 39 that controls the information output of cooking guidance at the corresponding time. Note that all or a part of the coil control unit 35, the guidance information control unit 37, and the cooking guidance control unit 39 may be implemented without software, and may be constituted by 1 or more CPUs, microprocessors, and FPGAs.

The output signals of the operation units 19 to 21 are inputted to the control unit 31. The control unit 31 sets the heating amount of the heating coils 7 to 9 according to the operation. The control unit 31 functioning as the coil control unit 35 controls the start or stop of heating of the heating coil 7 in accordance with an operation instruction from the operation unit 19. The coil control unit 35 supplies a high-frequency current to the heating coils 7 to 9 to heat the container placed on the top plate 5. The coil control unit 35 controls the amount of current flowing through the heating coils 7 to 9 to control the amount of heat from the heating coils 7 to 9. The output signals of the operation units 19 to 21 are input to the control unit 31, and therefore are also used for controlling the operation of the control unit 31 functioning as the guidance information control unit 37 and the cooking guidance control unit 39.

The cooking guidance control unit 39 transmits the cooking guidance information to the guidance information control unit 37 at a timing when an appropriate condition is satisfied in accordance with a predetermined heating procedure or cooking procedure. The appropriate condition is based on whether the detected temperature of the temperature sensor 18 satisfies a predetermined temperature condition or whether a predetermined time has elapsed after the detected temperature reaches a predetermined temperature. These conditions are set for each auxiliary menu for cooking guidance. When the cooking guidance control unit 39 determines that these conditions are satisfied, the cooking guidance control unit 39 instructs the guidance information control unit 37 to display the cooking guidance corresponding to the conditions on the display units 23 to 25. These heating sequence, cooking sequence, and cooking guide are stored in the storage unit 33.

Display unit and operation unit

Next, the display units 23 to 25 and the operation units 19 to 21 will be described with reference to FIG. 4. The operation sections 19 to 21 are provided with a 1 st operation section 51, a 2 nd operation section 53, a 3 rd operation section 55, and a 4 th operation section 57, respectively. The 1 st to 4 th operation units 51 to 57 may be touch switches including capacitance type switches, or may be push button switches, for example. The 1 st to 4 th operation units 51 to 57 set heating operations of the corresponding heating coils 7 to 9. The 1 st operation unit 51 is printed with a clock pattern and is mainly used for selecting timer settings. The 2 nd operation unit 53 and the 3 rd operation unit 55 are printed with arrow patterns, for example, "<", ">" symbols, mainly for setting menu selection, fire amount, and timer time. The 4 th operation unit 57 is printed with a pattern indicating a heating area corresponding to the operation unit, and functions as a multi-function switch to which different functions are assigned according to the situation. The power switch 22 has a function of turning on the power of the induction heating cooker 1. The power switch 22 may also have a function of cutting off the power supply of the induction heating cooker 1. A switch for cutting off the power supply may be provided separately from the power supply switch 22.

In the present specification, the 4 th operation unit 57 is described as a "multifunction switch 57" as 1 example. The control section 31 can assign different functions to the multi-function switch 57 according to the situation. The term "in accordance with the situation" means that the situation depends on the use situation, for example, on the display contents of the display units 23 to 25 or on the elapsed time from a predetermined starting point. The control unit 31 changes the functions assigned in relation to the display contents of the display units 23 to 25. The relationship between the display contents of the display units 23 to 25 and the functions assigned to the multi-function switch 57 will be described in detail below. The 1 st to 3 rd operating units 51 to 55, which are other operating units than the 4 th operating unit, can be operated by providing multi-function switches with different functions depending on the situation. Note that the 4 th operation unit 57 is an example of a multifunction switch in which at least 1 switch is provided. In addition, the 1 st operating part 51, the 2 nd operating part 53, the 3 rd operating part 55, and the 4 th operating part 57 included in each of the operating parts 19, 20, and/or 21 are also collectively referred to as "operating means" in the present disclosure. The operation unit is an interface for receiving a heating operation and/or various settings by a user. The operation unit may be constituted by any one of the 1 st operation unit 51, the 2 nd operation unit 53, the 3 rd operation unit 55, and the 4 th operation unit 57.

(1-2) details

Next, the induction heating cooker 1 according to the present disclosure will be described in detail by exemplifying the display unit 24 and the operation unit 20 corresponding to the display unit 24.

Fig. 5 is a partially enlarged view of the periphery of the operation unit 20 and the display unit 24. In fig. 5, the display unit 24 is turned off and shows a state before the induction heating cooker 1 is powered on. When the user presses the power switch 22, the induction heating cooker 1 is powered on.

Fig. 6 shows the display contents of the display unit 24 immediately after the power is turned on. In the display unit 24, an image object 32 of "start" is displayed together with the image object 30 of "heating". The image object 30 indicates an operation mode in which a heating operation can be performed. The image object 32 indicates that the heating operation using the heating coil 8 corresponding to the operation unit 20 and the display unit 24 is started when the multi-function switch 57 associated with the image object 32 is pressed. That is, in this state, the function of starting heating is assigned to the multifunction switch 57.

In the induction heating cooker 1 according to the present embodiment, the control unit 31 can operate in various operation modes according to the situation. An example thereof is a "single operation heating mode". The "single operation heating mode" refers to an action mode in which heating is started by an initial operation after the power is turned on. In a situation where the control unit 31 operates in the single operation heating mode, heating can be started by the user only performing 1 operation of pressing the multi-function switch 57 immediately after the power is turned on.

The term "heating" as used herein is intended to refer to heating a container as an object to be heated in a narrow sense, and includes heating an object to be stored, that is, a food such as stew, by heating the container in a broad sense. As described later, the induction heating cooker 1 can perform cooking by various methods such as cooking by "grill" and cooking by "fry" in addition to cooking by "heat". In any cooking method, the heating operation is automated by the control of the control unit 31, but the heating procedure such as the current flowing method and the voltage applying method to the heating coils 7 to 9 differs depending on the cooking method. Hereinafter, cooking by "heating" will be described by way of example.

Fig. 7 shows the display contents of the display unit 24 after the heating operation is started. The "heated" image object 30 displayed in the example of fig. 6 is changed to an image object 34 of characters, numerals, and icons indicating the amount of heat (intensity of fire). The "start" image object 32 is changed to the "close" image object 36. Image object 36 indicates that heating is turned off. The image object 36 indicates that the energization of the heating coil 8 corresponding to the operation unit 20 and the display unit 24 is cut off when the multi-function switch 57 associated with the image object 32 is pressed. That is, in this state, the function of finishing heating is assigned to the multifunction switch 57. At this time, when the user presses the multi-function switch 57, the heating operation using the corresponding heating coil 8 is stopped.

As can be understood from the above description, the multi-function switch 57 is assigned with different functions depending on the situation. The control unit 31 changes the function of the multi-function switch 57 in association with the image object on the display unit 24.

In the description so far, the operation unit 20 is assumed to be a switch realized by hardware. However, the operation unit 20 may be realized by a software switch and a touch panel displayed on the display unit 24.

For example, fig. 8 shows an example in which the multi-function switch 57 and the like are displayed on the display portion 24a having a larger screen size. A touch panel, not shown, is provided so as to overlap the display unit 24 a. The touch panel detects a touch and a touch position of a user from a change in pressure, electrostatic capacitance, or the like. For example, the control unit 31 determines that the touched position is the display position of the multi-function switch 57, and executes the function associated with the multi-function switch 57. In addition, a touch panel is an example of an input device. Further, an input device that detects the position of the user's finger and an input operation in a non-contact manner may be used. For example, a proximity sensor capable of detecting the presence or absence and the position of a nearby object by radio waves, infrared rays, or the like is mounted, and the operation of the multifunction switch 57 can be detected by detecting a hand covering the multifunction switch 57 by the proximity sensor. Such a proximity sensor can be used to operate without fear of dirt on the hand during cooking. The multifunction switch 57 may be implemented by the display portion 24a and a combination of such input devices.

Fig. 9 is a flowchart showing a procedure of processing of the control section 31 in the single operation heating mode. In the following description, the operation unit 20 and the display unit 24 are illustrated as in the example of fig. 5 to 8, but the same applies to the other operation units and display units.

In step S110, when the power switch 22 is pressed by the user, the control unit 31 detects the pressing. Thereby, the power supply of the induction heating cooker 1 is turned on.

The following steps S111 and S112 are processes executed immediately after the power is turned on. In step S111, the control unit 31 displays 1 or more image objects on the display unit 24. The image object includes an image object 32 indicating the "start" of starting heating. In step S112, the control section 31 associates the multi-function switch 57 with the image object 32. Specifically, the control unit 31 associates the display content of the image object 32 with the function when the multi-function switch 57 is pressed, so that heating is started when the multi-function switch 57 is pressed. In the present specification, after step S110, only the multifunction switch 57 that can receive an instruction for starting heating of the corresponding heating coil (for example, the heating coil 8) for the first time is configured not to receive the other 1 st to 3 rd operating units 51 to 55. The user can use the multi-function switch 57 in a case where the user wants to use the single-operation heating mode, and thus the operation when using the single-operation heating mode can be simplified.

In step S113, the control section 31 performs a heating action in response to detection of an input operation to the multifunction switch 57. Thereby, the control unit 31 ends the operation based on the single operation heating mode. After the heating operation is performed, the control unit 31 may switch the display of the display unit 24 to, for example, the display shown in fig. 7. In S113, only 1 preset heating pattern is executed in response to the first heating start instruction.

In step S113, the control unit 31 keeps the heating operation until the input operation to the multifunction switch 57 is performed. If a relatively long time elapses, the user may forget that the power of the induction heating cooker 1 is turned on and may press the multi-function switch 57 by an erroneous operation or the like. Thus, there is a possibility that heating may be started unintentionally.

Therefore, the present inventors forcibly end the operation of the single operation heating mode after a certain time has elapsed. Fig. 10 is a flowchart showing a procedure of processing of the control section 31 based on a modified example of the single operation heating mode. Steps S110 to S113 are the same as fig. 9. Therefore, the explanation thereof will be omitted.

In step S120, the control unit 31 determines whether or not an input operation to the multifunction switch 57 is detected within a predetermined time. The "predetermined time" is, for example, 1 minute from the time of turning on the power. However, a setting mode in which the user can arbitrarily set the predetermined time may be provided to the induction heating cooker 1. In this case, for example, a function of accepting setting of a predetermined time is assigned to the multi-function switch 57. The control unit 31 can receive a setting of a predetermined time from the user via the multi-function switch 57. The time setting method may be any of setting based on selection from a previously prepared option and setting based on input of a specific numerical value. In addition, what can receive the setting of the time from the user is at least any 1 of the 1 st to 3 rd operation units 51 to 55 other than the multifunction switch 57, and the setting can be received in the entire operation unit. That is, the setting of the time from the user may be accepted via the operation unit.

In the case where the input operation to the multifunction switch 57 is detected, the process advances to step S120. On the other hand, in a case where the input operation to the multifunction switch 57 is not detected, the processing of the single operation heating mode ends. Thus, in the case of no operation, the single operation heating mode can be automatically ended after a certain time has elapsed.

In addition, as in the induction heating cooker 1 of the present embodiment, when a plurality of heating coils 7 to 9 are provided and a plurality of multi-function switches 57 are provided corresponding to the heating coils 7 to 9, the above-described "predetermined time" can be set for each heating coil. The control unit 31 may count the predetermined time for each heating coil, and may end the operation in the single operation heating mode for each heating coil for which the predetermined time has elapsed.

Alternatively, the "predetermined time" may be set to 1 for the entire heating coils 7 to 9. The control unit 31 measures a predetermined time from the time when any 1 of the multifunction switches provided for the heating coils 7 to 9 is operated last. When the input operation to any of the multifunction switches is not detected within the predetermined time, the control unit 31 collectively ends the single operation heating mode to all of the heating coils 7 to 9.

(2) Modification examples

Next, various modifications of the induction heating cooker 1 will be explained.

In the processing shown in fig. 10, the control unit 31 may, for example, turn off the power supply of the induction heating cooker 1 after the single operation heating mode is automatically ended after a predetermined time has elapsed. This enables, for example, when an object accidentally hits the power switch 22 and the power is turned on, the power to be automatically turned off after a certain time has elapsed.

Another example of the case where the single operation heating mode is ended is the transition to another action mode different from the single operation heating mode. An example of the other operation mode is a "standby mode". The "standby mode" is an operation mode in which the control unit 31 can further accept selection of heating cooking by manual operation or automatic heating cooking.

Fig. 11 is a flowchart showing a procedure of processing by the control unit 31 including transition to the standby mode. Fig. 11 is different from fig. 10 in that if no (N) at step S120, the control unit 31 shifts to the standby mode as step S121. Since other steps are the same, the explanation thereof will be omitted.

In step S121, after the control unit 31 shifts to the standby mode, the user can select an operation mode corresponding to a desired cooking method by operating the multi-function switch 57 or the like.

When the operation mode is changed, the control unit 31 may cause the display unit 24 to display an image object indicating that the operation mode has been changed. The control unit 31 may output a sound indicating that the operation mode has transitioned from the speaker 27 together with or instead of the display of the image object.

Fig. 12 shows an example of display on the display unit 24 when the standby mode is automatically shifted after a certain time has elapsed. As shown in fig. 12, an image object "menu" of characters and objects "<" and ">" of symbols are displayed on the display unit 24. When the user presses 1 of the 2 nd and 3 rd operation units 53 and 55 corresponding to the symbol objects "<" and ">", an image corresponding to the image object of the symbol, for example, the image of fig. 6, is displayed on the display unit 24. When the user presses the multi-function switch 57 corresponding to the image object 32 of "start", heating is restarted. This enables the user to perform cooking by manual operation. Further, in response to a user operation, an image other than the image of fig. 6 may be displayed on the display unit 24. The user can select an automatic heating/cooking operation mode such as a "grill" mode or a "fry" mode, for example.

As described above, the "single operation heating mode" is an operation mode of the control unit 31 in which "heating" can be started by the first operation after the power is turned on. Regarding "heating", it is assumed that the container is inductively heated by a predetermined constant heating power (initial heating power). The user can set the initial heating power in the induction heating cooker 1 in advance.

The specific method of setting the initial power is arbitrary. For example, after the power is turned on, the control section 31 shifts to a setting mode for changing the heating power in response to an operation by the user. In the setting mode, for example, a function of receiving selection of 1 heating power from among a plurality of levels of heating power is assigned to the multi-function switch 57. When the user selects a desired heating power using the multi-function switch 57, the control unit 31 receives the selection, and changes the heating sequence so that heating is performed with the heating power when heating is started in the "single operation heating mode". Thus, the control unit 31 can perform heating in the "single operation heating mode" with the preset heating power.

The preset target is not limited to the heating power. In the induction heating cooker 1, the user can set in advance, instead of "heating", that: different heating sequences such as "grill", "fry", etc. are performed by a first operation after the power is turned on.

Fig. 13 (a) to (c) show transition of display on the display unit 24 before and after power-on when the "single operation heating mode" is set to "grill". Fig. 13 (a) shows the display unit 24 before power-on. In (b), the display unit 24 displays the image object 130 indicating "grill" and the image object 132 indicating "start", and in (c), the display unit 24 displays the image objects 134 and 136 indicating the remaining heat temperature "200" (degrees) and "off", respectively.

Fig. 14 (a) to (c) show transition of display on the display unit 24 before and after power-on when the "single operation heating mode" is set to "frying". Fig. 14 (a) shows the display unit 24 before power-on. In (b), the display unit 24 displays the image object 230 indicating "deep frying" and the image object 232 indicating "start", and in (c), the display unit 24 displays the image objects 234 and 136 indicating the remaining heat temperature "180" (degrees) and "off".

In addition, specific methods of setting "grill", "fry", and the like as the "single operation heating mode" are arbitrary. For example, a heating sequence for automating the heating operation is stored in the storage unit 33 for each of the plurality of cooking methods. Then, after the power is turned on, the control unit 31 shifts to a setting mode for changing the heating procedure in response to the user's operation. In the setting mode, for example, a function of receiving selection of 1 cooking method from a plurality of cooking methods is assigned to the multi-function switch 57. When the user selects a cooking recipe from among the plurality of cooking recipes using the multi-function switch 57, the control unit 31 changes the parameters for the initial operation so as to accept the designation of the selected cooking recipe in advance, and displays an image object corresponding to the selected cooking recipe after the power is turned on. Accordingly, the control unit 31 can display the image object corresponding to the cooking method selected in advance immediately after the power is turned on, and start heating in the heating order corresponding to the cooking method by the initial operation of the user.

As described with reference to fig. 7, after heating by the single operation heating mode is started, the user sometimes stops heating. Examples of the reason why the user stops heating are to confirm whether or not the container or the food in the container as the object to be heated is heated to a desired level, and to put seasoning, food, and the like. Then, it is considered that there is a large chance that heating is started again.

In such a case, it is considered that the user can easily use the heating apparatus when the heating is restarted in the same operation mode as before the heating is stopped. The "same operation mode" means that the cooking method, the heating power, and the like are set to be the same.

Fig. 15 is a display example of the display unit 24 that can restart heating based on the same setting. In fig. 7, when the multifunction switch 57 corresponding to the image object 36 that is "off" is pressed and the control unit 31 stops heating, the display of the display unit 24 is switched to the display shown in fig. 15. The control unit 31 changes the "closed" image object 36 (fig. 7) to the "restart" image object 38, and displays the image object on the display unit 24. At this time, the image object 34 of the characters, numerals, and icons indicating the heat power (intensity of fire) is kept displayed as it is. When the user presses the multi-function switch 57 corresponding to the image object 38 to be restarted, the display of the display unit 24 returns to the display of fig. 7 again, and the heating is restarted in the same operation mode.

Fig. 16 is a flowchart showing a procedure of the interruption/restart process at the time of the single operation heating mode.

In step S130, the control section 31 performs the heating action by the single operation heating mode. This processing corresponds to the processing up to step S113 in fig. 7, 10, and 11, for example. In step S131, the control unit 31 displays the image object 36 (fig. 7) indicating that heating is stopped.

In step S132, the control section 31 stops the heating operation in response to detection of the input operation to the multifunction switch 57 corresponding to the image object 36.

In step S133, the control unit 31 displays the image object 38 (fig. 15) indicating that heating is to be restarted on the display unit 24.

In step S134, the control unit 31 determines whether or not an input operation to the multi-function switch 57 corresponding to the image object 38 (fig. 15) is detected within a predetermined time. This processing is provided for the same reason as step S120 in fig. 10. For example, the "predetermined time" is 2 minutes from the stop of heating.

The "predetermined time" referred to herein can be arbitrarily set by the user, similarly to step S120 in fig. 10. In this case, for example, a function of accepting setting of a predetermined time is assigned to the multi-function switch 57. The control unit 31 can receive a setting of a predetermined time from the user via the multi-function switch 57. In addition, what can receive the setting of the time from the user is at least any 1 of the 1 st to 3 rd operation units 51 to 55 other than the multifunction switch 57, and the setting can be received in the entire operation unit. That is, the setting of the time from the user may be accepted via the operation unit.

If the input operation to the multifunction switch 57 is detected within a predetermined time, the process proceeds to step S135, and if not detected, the process ends without starting heating again. At this time, as the end of the single operation heating mode, for example, the same processing as the end processing of fig. 9 may be performed.

In step S135, in response to detection of the input operation to the multifunction switch 57, the control unit 31 restarts the heating operation in the operation mode when the heating operation is stopped. According to the above processing, even after the heating is temporarily stopped and restarted, the user does not need to readjust the setting value at the time of heating. Therefore, user convenience can be greatly improved.

Further, even a user who has been continuously using the conventional induction heating cooker described in, for example, international publication No. 2009/001513 may feel that the single operation heating mode is not easy to use. Therefore, the induction heating cooker 1 may be provided with a function of setting in advance the number of operations required from the time when the power is turned on to the time when the heating operation is performed. By setting not to the single operation heating mode but to the special requirement 2 operations, the same operation feeling as that of the conventional induction heating cooker can be provided to the user. That is, the control unit 31 can control the operation of the induction heating cooker 1 in the single operation heating mode, and can also control the operation of the induction heating cooker 1 in accordance with a conventional routine in which heating is started by 2 operations after the power is turned on in accordance with the preference of the user. The 2-time operation described here means not only an operation of pressing the multifunction switch 57 2 times, but also an operation of performing 2 times in the entire operation unit. For example, the 2-time operation includes an operation of pressing the multifunction switch 57 1 time after pressing the 2 nd operation portion 53 1 time. For example, a function for accepting the setting of the number of operations is assigned to the multi-function switch 57, and the user accepts the setting of the preset number of operations through the multi-function switch 57. In addition, the setting of the number of operations from the user may be accepted by at least any 1 of the 1 st to 3 rd operation units 51 to 55 other than the multifunction switch 57 as long as the setting can be accepted in the entire operation unit. That is, the setting of the number of operations from the user may be accepted via the operation unit.

Next, a protective electrode provided to prevent an erroneous operation by a user or the like will be described.

Fig. 17 is a schematic diagram of an electronic circuit board 250 around the operation unit 20. For example, the multifunction switch 57 is provided as an electrostatic capacitance type touch switch 240. The same applies to the other switches. Hereinafter, the multifunction switch 57 will be described as an example.

More than 1 guard electrode 242 is disposed along a part of the multifunction switch 57. A current and/or a voltage is applied to the guard electrode 242 at all times. The control unit 31 can monitor the current and/or voltage and detect an electrical change thereof. When the control unit 31 detects an electrical change of the guard electrode 242 before detecting an input operation to the multifunction switch 57, the input operation to the multifunction switch 57 is invalidated.

For example, assume that the user manually flicks dirt off the top panel 5 from the upper right to the lower right in fig. 17. At this time, if the multifunction switch 57 is pressed by mistake, an undesired heating operation may be started. In order to invalidate such erroneous operation, it is sufficient if it can be detected whether or not the user has pressed the multifunction switch 57 at a precise fixed point. Therefore, 1 or more guard electrodes 242 are arranged along a part of the multifunction switch 57 for detecting a situation where the multifunction switch 57 is not pressed at a precise fixed point.

In fig. 17, the guard electrode 242 is not provided around the power switch 22, but may be provided.

Fig. 18 shows a relationship between a rectangular touch switch 240 and a guard electrode 242 constituting the multifunction switch 57. The shield electrode 242 includes a 1 st shield electrode 242a in the X-axis direction and a 2 nd shield electrode 242b in the Y-axis direction. The 1 st guard electrode 242a and the 2 nd guard electrode 242b are disposed along two adjacent sides of the touch switch 240. In the examples of fig. 17 and 18, the guard electrode is not provided between the four switches, but may be provided. Further, the guard electrodes may be provided along 4 sides of the rectangular touch switch 240 or along two sides parallel to the X-axis direction.

The embodiment of the induction heating cooker 1 according to the present disclosure is described above. The processing of the flowchart described above is realized as the operation of the control unit 31 by a computer program. Such a computer program is stored in the storage unit 33 and can be executed by the control unit 31.

(3) Means for

As is apparent from the above embodiment and modifications, the present disclosure includes the following aspects. Hereinafter, brackets are attached with reference numerals to clarify the correspondence with the above embodiments.

The 1 st aspect is an induction heating cooking device (1) comprising: a heating coil (7, 8 and/or 9) for induction-heating an object to be heated; a power switch (22) for switching on a power supply; a multi-function switch (51, 53, 55 and/or 57) to which different functions are assigned according to conditions; a display unit (24) for displaying an image object; and a control unit (31) that controls an operation based on a predetermined operation mode among the plurality of operation modes. The plurality of operation modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on. The control unit (31) can control the operation based on the single operation heating mode. The single operation heating mode is the following action mode: the control unit (31) causes the display unit (24) to display an image object indicating the start of heating, associates the multi-function switch (51, 53, 55, and/or 57) with the image object indicating the start of heating, and executes a heating operation using the heating coil (7, 8, and/or 9) when an input operation to the multi-function switch (51, 53, 55, and/or 57) is detected. This improves the operability of the induction heating cooker (1).

The 2 nd aspect is an induction heating cooker (1) according to the 1 st aspect. In the 2 nd aspect, when the input operation to the multifunction switches (51, 53, 55, and/or 57) is not detected within a predetermined time after the power is turned on and the control unit (31) starts operating in the single operation heating mode, the control unit (31) ends the single operation heating mode. By ending the single operation heating mode, undesired heating by the user after a prescribed time has elapsed can be avoided.

The 3 rd aspect is the induction heating cooker (1) according to the 2 nd aspect. In the 3 rd aspect, the plurality of operation modes include a standby mode for accepting selection of heating cooking by manual operation or automatic heating cooking. The control unit (31) operates in a standby mode after the single operation heating mode is ended. Thus, after a predetermined time has elapsed, the user can select an operation mode according to a desired cooking method while avoiding undesired heating.

The 4 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 3 rd aspects. In the 4 th aspect, a plurality of heating coils (7, 8, 9) are provided, the multi-function switches (51, 53, 55, and/or 57) are provided for each of the heating coils (7, 8, 9), and a predetermined time is set for each of the heating coils (7, 8, 9). The control unit (31) measures a predetermined time for each heating coil (7, 8, 9), and terminates the single operation heating mode for each heating coil (7, 8, 9) when the input operation to the multi-function switches (51, 53, 55, and/or 57) is not detected within the predetermined time. This makes it possible to avoid heating that is not intended by the user after a predetermined time has elapsed for each heating coil (7, 8, 9).

The 5 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 3 rd aspects. In the 5 th aspect, a plurality of heating coils (7, 8, 9) are provided, and a multi-function switch (51, 53, 55, and/or 57) is provided for each heating coil (7, 8, 9), and a predetermined time is set in common for the plurality of heating coils (7, 8, 9). The control unit (31) measures a predetermined time starting from the time at which any 1 of the multi-function switches (51, 53, 55, and/or 57) provided for each heating coil (7, 8, 9) was last operated. When the input operation to the multi-function switches (51, 53, 55, and/or 57) is not detected within a predetermined time, the control unit (31) terminates the single operation heating mode for all of the heating coils (7, 8, 9). This makes it possible to avoid heating that is not intended by the user after a predetermined time has elapsed for all of the plurality of heating coils (7, 8, 9).

The 6 th aspect is an induction heating cooking device (1) according to any one of the 2 nd to 5 th aspects. In the 6 th aspect, the control unit (31) receives a setting of a predetermined time. Thus, the predetermined time until the single operation heating mode is ended can be set according to the preference of the user.

The 7 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 6 th aspects. In the 7 th aspect, the induction heating cooker (1) further includes a storage device (33), and the storage device (33) stores in advance a heating sequence for automating a heating operation for each of the plurality of cooking methods. A function for receiving selection of 1 cooking method from a plurality of cooking methods is assigned to the multi-function switch (51, 53, 55 and/or 57). A control unit (31) receives in advance a designation of a cooking method selected from a plurality of cooking methods via a multi-function switch (51, 53, 55 and/or 57), reads a heating sequence corresponding to the selected cooking method, and in a single operation heating mode, the control unit (31) executes a heating operation in accordance with the read heating sequence. Thus, the control unit (31) can perform heating in a single operation heating mode in a preset heating sequence.

The 8 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 7 th aspects. In the 8 th aspect, a function for receiving setting of heating power at the start of heating is assigned to the multi-function switch (51, 53, 55, and/or 57). The control unit (31) receives in advance the setting of heating power at the start of heating via the multi-function switches (51, 53, 55, and/or 57). In the single operation heating mode, the control unit (31) performs a heating operation with the set heating power. Thus, the control unit (31) can perform heating in the single operation heating mode with preset heating power.

The 9 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 8 th aspects. In the 9 th mode, after the heating is started, the control unit (31) causes the display unit (24) to display an image object indicating that the heating is stopped, associates the multi-function switch (51, 53, 55, and/or 57) with the image object indicating that the heating is stopped, and stops the heating when an input operation to the multi-function switch (51, 53, 55, and/or 57) is detected. In this way, the multifunction switch used for starting heating can be used for stopping heating.

The 10 th aspect is an induction heating cooker (1) according to the 9 th aspect. In the 10 th aspect, after the heating is stopped, the control unit (31) causes the display unit (24) to display an image object indicating the start of heating. The control unit (31) associates the multi-function switch (51, 53, 55 and/or 57) with the image object indicating the start of heating. When the control unit (31) detects an input operation to the multi-function switch (51, 53, 55, and/or 57) within a predetermined time or within a predetermined number of operations, the control unit operates in an operation mode before the heating is stopped. Even after the heating is stopped once and restarted, the user does not need to readjust the set value at the time of heating, and therefore, the user's convenience can be greatly improved.

The 11 th aspect is an induction heating cooker (1) according to the 10 th aspect. In the 11 th aspect, the control unit (31) accepts setting of a predetermined time in advance. Thus, the time for operating in the operation mode before the heating is stopped can be set according to the preference of the user.

The 12 th aspect is an induction heating cooker (1) according to the 10 th aspect. In the 12 th aspect, the control unit (31) receives a setting of the number of operations. This makes it possible to set the number of operations to be performed in the operation mode before the heating is stopped, according to the preference of the user.

The 13 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 12 th aspects. In the 13 th aspect, the induction heating cooker (1) includes: the operation unit includes a multi-function switch (51, 53, 55 and/or 57) and receives an input from a user. A function for receiving the setting of the number of operations until the heating operation is executed after the power is turned on is assigned to the operation means. When the setting of the operation times is received in advance through the operation unit, the control unit (31) operates in a non-single operation heating mode after the power is turned on, wherein the non-single operation heating mode is an operation mode as follows: the control unit (31) receives the operation of the set operation times through the operation unit, and then executes the heating operation using the heating coils (7, 8, 9). By providing the non-single operation heating mode, heating can be started after the power is turned on, for example, by the same number of operations as in a conventional model according to the preference of the user.

The 14 th aspect is the induction heating cooker (1) according to the 13 th aspect. In the 14 th aspect, when the setting of the number of operations of 2 times is accepted in advance as the number of operations, the control unit (31) executes the heating operation when accepting selection of a menu showing heating from the plurality of menus via the operation means and further accepting selection to start heating. Thus, the user can select a mode in which heating is started not by 1 time but by 2 times of operation according to his/her preference.

The 15 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 14 th aspects. In the 15 th aspect, the induction heating cooker (1) further includes 1 or more protective electrodes (242) arranged along a part of the multi-function switches (51, 53, 55, and/or 57). The control unit (31) can detect an electrical change of the guard electrode (242) by monitoring the current and/or voltage applied to 1 or more guard electrodes (242). The control unit (31) invalidates the input operation to the multi-function switch (51, 53, 55, and/or 57) when the electrical change of the guard electrode (242) is detected before the input operation to the multi-function switch (51, 53, 55, and/or 57) is detected. By using the guard electrode (242), it can be detected whether the multifunction switch (51, 53, 55 and/or 57) is pressed at a precise point, and an undesired start of the heating action can be avoided.

The 16 th aspect is an induction heating cooker (1) according to the 15 th aspect. In the 16 th aspect, the 1 or more guard electrodes (242) include a 1 st guard electrode (242a) and a 2 nd guard electrode (242 b). When the multi-function switch (51, 53, 55, and/or 57) has a rectangular shape, the 1 st guard electrode (242a) and the 2 nd guard electrode (242b) are arranged along two adjacent sides of the multi-function switch (51, 53, 55, and/or 57). Thus, whether or not the multifunction switch (51, 53, 55 and/or 57) is pressed at a precise fixed point can be detected, and the start of an undesired heating operation can be avoided.

The 17 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 16 th aspects. In the 17 th aspect, when the operation mode is changed, the control unit (31) displays an image object indicating that the operation mode has been transitioned on the display unit (24). This makes it possible to visually notify the user that the operation mode has changed.

The 18 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 17 th aspects. In the 18 th aspect, the induction heating cooker (1) further includes a speaker (27) that outputs sound. When the operation mode is changed, the control unit (31) outputs a sound indicating that the operation mode has transitioned from the speaker (27). This makes it possible to notify the user of the change in the operation mode by sound.

The 19 th aspect is an induction heating cooking device (1) according to any one of the 1 st to 18 th aspects. In the 19 th aspect, only the multifunction switches (1 of 51, 53, 55, and 57) that receive the start of heating by the first operation after the power is turned on are provided. The user can use a specific multi-function switch when the user wants to use the single operation heating mode, and thus the operation when using the single operation heating mode can be simplified.

The 20 th aspect is a computer-readable recording medium on which a computer program executed by a control unit (31) of an induction heating cooker (1) is recorded. An induction heating cooker (1) is provided with: heating coils (7, 8, 9) for induction-heating an object to be heated; a power switch (22) for turning on the power supply; a multi-function switch (51, 53, 55 and/or 57) to which different functions are assigned according to conditions; a display unit (24) for displaying an image object; and a control unit (31) as a computer that controls an operation based on a predetermined operation mode among the plurality of operation modes. The plurality of operation modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on. The computer program enables the control unit (31) to control the operation of the single operation heating mode. The computer program causes the control section (31) to execute the following processing in the single operation heating mode: a process of displaying an image object indicating the start of heating on a display unit (24); a process of associating a multi-function switch (51, 53, 55 and/or 57) with an image object indicating the start of heating; and processing for performing a heating operation using the heating coils (7, 8, 9) when an input operation to the multifunction switches (51, 53, 55, and/or 57) is detected. Thus, an induction heating cooker (1) with improved operability can be obtained.

The single-operation heating mode according to the present disclosure, which can start heating by the first operation after the power is turned on, can be applied to any induction heating cooker for home use and business use.

Claims (20)

1. An induction heating cooker is provided with:

a heating coil for induction-heating an object to be heated;

the power switch is used for connecting a power supply;

a multi-function switch to which different functions are assigned according to conditions;

a display unit that displays an image object; and

a control unit for controlling an operation based on a predetermined operation mode among the plurality of operation modes,

the plurality of action modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on,

the control section is capable of controlling an action based on the single operation heating mode,

the single operation heating mode is an action mode as follows:

the control unit causes the display unit to display an image object indicating a start of heating, associates the multi-function switch with the image object indicating the start of heating, and executes a heating operation using the heating coil when an input operation to the multi-function switch is detected.

2. The induction heating cooker as claimed in claim 1,

After the power is turned on and the control section starts operating in the single operation heating mode,

the control unit terminates the single operation heating mode when the input operation to the multi-function switch is not detected within a predetermined time.

3. The induction heating cooker as claimed in claim 2,

the plurality of operation modes include a standby mode for accepting selection of heating cooking by manual operation or automatic heating cooking,

the control unit operates in the standby mode after the single operation heating mode is ended.

4. The induction heating cooker as claimed in claim 1,

there is a plurality of said heating coils,

the multi-function switch is provided for each of the heating coils,

a predetermined time is set for each of the heating coils,

the control unit measures the predetermined time for each of the heating coils, and ends the single operation heating mode for each of the heating coils when the input operation to the multi-function switch is not detected within the predetermined time.

5. The induction heating cooker as claimed in claim 1,

There are a plurality of said heating coils present,

the multi-function switch is provided for each of the heating coils,

a predetermined time is set in common to the plurality of heating coils,

the control unit measures the predetermined time with a starting point of any 1 last operated multi-function switch provided for each heating coil,

in a case where the input operation to the multi-function switch is not detected within the prescribed time, the single operation heating mode is ended for all of the heating coils of the plurality of heating coils.

6. The induction heating cooker as claimed in claim 2,

the control unit receives the setting of the predetermined time.

7. The induction heating cooker as claimed in claim 1,

further provided with: a storage device for storing in advance a heating sequence for automating a heating operation for each of a plurality of cooking methods,

the multi-function switch is assigned with a function of receiving selection of 1 cooking method from a plurality of cooking methods,

the control unit receives in advance a designation of a cooking method selected from the plurality of cooking methods via the multi-function switch, reads a heating sequence corresponding to the selected cooking method,

In the single operation heating mode, the control section executes the heating operation in accordance with the read heating order.

8. The induction heating cooker as claimed in claim 1,

a function of receiving a setting of heating power at the start of heating is assigned to the multi-function switch,

the control unit receives in advance a setting of heating power at the start of heating via the multi-function switch,

in the single operation heating mode, the control portion executes the heating operation with the set heating power.

9. The induction heating cooker as claimed in claim 1,

after the heating is started, the control unit causes the display unit to display an image object indicating that the heating is stopped, associates the multi-function switch with the image object indicating that the heating is stopped, and stops the heating when an input operation to the multi-function switch is detected.

10. The induction heating cooker as claimed in claim 9,

after the heating is stopped, the control unit causes the display unit to display an image object indicating the start of the heating, associates the multi-function switch with the image object indicating the start of the heating, and operates in an operation mode before the heating is stopped when an input operation to the multi-function switch is detected within a predetermined time or within a predetermined number of operations.

11. The induction heating cooker according to claim 10,

the control unit accepts setting of the predetermined time in advance.

12. The induction heating cooker as claimed in claim 10,

the control unit receives the setting of the number of operations.

13. The induction heating cooker as claimed in claim 1,

the disclosed device is provided with: an operation unit including the multi-function switch, receiving an input from a user,

a function of assigning the operation unit to receive a setting of the number of operations until the heating operation is executed after the power is turned on,

the control unit operates in a non-single operation heating mode after the power is turned on when the setting of the operation times is accepted in advance via the operation means,

the non-single operation heating mode is an action mode as follows: the control unit executes a heating operation using the heating coil after receiving the set number of operations via the operation unit.

14. The induction heating cooker as claimed in claim 13,

when the setting of the number of operations of 2 times is received in advance as the number of operations, the control unit executes the heating operation when it is received via the operation unit that a menu showing heating is selected from a plurality of menus and further it is received that the heating is started by the selection.

15. The induction heating cooker according to claim 1, wherein,

further provided with: more than 1 guard electrode disposed along a portion of the multi-function switch,

the control unit can detect an electrical change of the guard electrode by monitoring a current and/or a voltage applied to the 1 or more guard electrodes,

the control unit invalidates the input operation to the multi-function switch when the control unit detects an electrical change of the protection electrode before the input operation to the multi-function switch is detected.

16. The induction heating cooker as claimed in claim 15,

the 1 or more guard electrodes include a 1 st guard electrode and a 2 nd guard electrode,

when the multifunction switch has a rectangular shape, the 1 st guard electrode and the 2 nd guard electrode are disposed along two adjacent sides of the multifunction switch.

17. The induction heating cooker as claimed in claim 1,

when the operation mode is changed, the control unit displays an image object indicating that the operation mode has been transitioned on the display unit.

18. The induction heating cooker as claimed in claim 1,

Further provided with: a speaker for outputting a sound, wherein the speaker is provided with a speaker,

when the operation mode is changed, the control unit outputs a sound indicating that the operation mode has transitioned from the speaker.

19. The induction heating cooker as claimed in claim 1,

the multifunctional switch is only used for receiving the start of heating through the initial operation after the power supply is turned on.

20. A computer-readable recording medium having recorded thereon a computer program to be executed by a control unit of an induction heating cooker,

the induction heating cooker is provided with:

a heating coil for induction-heating an object to be heated;

the power switch is used for connecting a power supply;

a multi-function switch to which different functions are assigned according to conditions;

a display unit that displays an image object; and

the control unit as a computer controls an operation based on a predetermined operation mode among a plurality of operation modes,

the plurality of action modes include a single operation heating mode in which heating is started by an initial operation after the power is turned on,

the computer program enables the control section to control the action based on the single operation heating mode,

the computer program causes the control section to execute, in the single operation heating mode, the processing of:

A process of displaying an image object indicating a start of heating on the display unit;

a process of associating the multi-function switch with an image object indicating that the heating is started; and

when the input operation to the multifunction switch is detected, the heating operation using the heating coil is performed.

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