JP5923685B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker used for general household and business use.

  Conventionally, this type of induction heating cooker is becoming widespread as a safe heating device that does not use an open fire, and is recognized as a safe heating device for visually impaired and elderly people. In order to improve convenience, various devices that generate sound in conjunction with operation switches have been proposed.

  For example, the induction heating cooker includes a confirmation switch for confirming the current operation state, and the sound operation means notifies the current operation state by operating the confirmation switch. For example, the contents of the current state of the heating operation being performed are briefly expressed (for example, patents) Reference 1).

  When the user operates the heating start means, a method of reducing erroneous operations due to misrecognition by confirming the operation content with the voice notification means has also been devised (see, for example, Patent Document 2).

JP 2007-0783303 A JP 2007-194010 A

  However, in the above-described conventional configuration, in an induction heating cooker having many functions and many operation switches, the current operation state or the like every time the user operates without intending to shift to the operation explanation mode. Since the name of the operation switch is explained, there is a problem that the user feels troublesome.

  In addition, confirmation switches that explain the current operation state and operation switch names are required, and there are problems that the number of components constituting them increases and the space in the operation unit decreases.

  The present invention solves the above-mentioned conventional problems, and not only can explain the operation method of the device to the user, but also explains every time the user makes an unintended operation when shifting to the operation explanation mode. An object of the present invention is to provide an induction heating cooker that can easily improve the user-friendliness.

  In order to solve the above-described conventional problems, an induction heating cooker according to the present invention includes a main power switch that turns on and off a main power supply, a control unit that controls an inverter unit including a heating coil, and an operation unit that sets an operation state. A display unit for displaying the setting state, a notifying unit for notifying the setting state by sound such as voice or buzzer, and an operation explanation mode for explaining the operation method in one or both of the display unit and the notifying unit. And a mode transition unit configured by, for example, a voice switch, and the operation is performed only when the main power switch is pressed and the operation of the mode transition unit is continued without performing other operations. This is a transition to the explanation mode.

  Accordingly, it is intended that the user shifts to the operation explanation mode because the mode transition mode is shifted to the operation explanation mode only when the main power switch is pressed and the operation of the mode transition section is continued without performing other operations. Even if it is not, it will not be explained every time it is operated, and the user-friendliness can be improved.

  In addition, when the mode transition unit is operated after pressing the main power switch and subsequently performing an operation other than the mode transition unit in the operation unit, the operation description mode is not shifted and the operation is not performed. By performing operations other than the explanation mode, different operations can be performed in the same mode transition unit, and the problem that the number of parts increases and the space in the operation unit decreases can also be solved.

  Further, when the main power switch is pressed and the display unit or the notification unit is informed that it is possible to shift to the operation explanation mode, and the operation explanation mode is entered, the display unit or the notification unit is notified. The user-friendliness can be further improved by guiding that the operation explanation mode has been entered.

  The induction heating cooker of the present invention does not give unnecessary explanation every time it is operated even if the user does not intend to shift to the operation explanation mode, and easily does not feel troublesome for the user. Usability can be improved.

The block diagram of the induction heating cooking appliance in Embodiment 1, 2 of this invention Top view of top plate 1 in Embodiment 1 of the present invention Operation flow chart of induction heating cooker in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention The figure of the display part of operation explanation mode in Embodiment 1 of the present invention Flowchart during operation explanation mode of induction heating cooker in Embodiment 2 of the present invention.

  A first invention includes a main power switch for turning on / off a main power supply, a control unit for controlling an inverter unit including a heating coil, an operation unit for setting an operating state, a display unit for displaying a setting state, and a setting state And a mode transition unit for shifting to an operation explanation mode for explaining an operation method in one or both of the display unit and the notification unit, and pressing down the main power switch. However, it is not intended that the user shifts to the operation explanation mode by shifting to the operation explanation mode only when the operation of the mode transition section is continued in the operation section without performing other operations. The user's convenience can be improved without being explained every time the operation is performed.

  In a second aspect of the invention, in particular, in the first aspect of the invention, after the main power switch is pressed, and after the operation unit performs another operation other than the mode transition unit, the mode transition unit is further operated. By performing operations other than the operation explanation mode, it is possible to perform different operations in the same mode transition unit, and it is possible to solve the problem that the number of parts increases and the space in the operation unit decreases.

In the third invention, in particular, in the first or second invention, the main power switch is pressed down and the display unit or the notification unit guides the user to the transition to the operation explanation mode. The user can surely shift to the operation explanation mode, and the usability can be further improved.

In the fourth invention, in particular, in any one of the first to third inventions, when the operation explanation mode is entered, the display section and the notification section guide the fact that the operation explanation mode has been entered. Therefore, it is possible to prevent an erroneous operation due to a user's misidentification.

In the fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, during the operation explanation mode, operations other than a predetermined switch explained in the operation explanation mode of the operation unit are invalidated. Thus, it is possible to prevent erroneous operation due to misidentification by the user, and thus usability can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

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

  FIG. 2 is a top view of the top plate 1 according to the first embodiment of the present invention.

  FIG. 3 shows an operation flow diagram of the induction heating cooker according to the first embodiment of the present invention.

  In FIG. 1, an induction heating cooker according to an embodiment of the present invention includes a top plate 1 provided on an upper surface of a device, and a heating coil 2 that induction-heats an object to be heated 10 on the top plate 1 by generating a high-frequency magnetic field. (Outer coil 2a and inner coil 2b). The top plate 1 is made of an electrical insulator such as glass and transmits infrared rays. The heating coil 2 is provided below the top plate 1. The heating coil 2 is divided into two concentric circles to form an outer coil 2a and an inner coil 2b. A gap is provided between the outer coil 2a and the inner coil 2b. The object to be heated 10 generates heat due to the eddy current generated by the high frequency magnetic field of the heating coil 2.

  On the user side of the top plate 1, the main power switch 15 for inputting on / off of the main power supply, and the name of the last operated switch are explained on the operation unit 4 where the user can instruct start / stop of heating. The voice switch 16 for shifting to the operation explanation mode is included. A display unit 12 is provided between the operation unit 4 and the article to be heated 10 to display a state such as a heating mode or a thermal power. A light source 14 for irradiating the operation unit 4 and the display unit 12 is provided below the operation unit 4 and the display unit 12.

  The infrared sensor 3 is provided below the gap between the outer coil 2a and the inner coil 2b. Since the high-frequency magnetic field of the heating coil 2 is strong at this position, the substantially maximum temperature of the bottom surface of the object to be heated 10 can be detected. Infrared radiation based on the bottom surface temperature of the object to be heated 10 radiated from the bottom surface of the object to be heated 10 is incident through the top plate 1, passes through a gap between the outer coil 2 a and the inner coil 2 b, and is an infrared sensor. 3 is received. The infrared sensor 3 detects received infrared rays and outputs an infrared detection signal based on the detected amount of infrared rays.

  Below the heating coil 2, a rectifying / smoothing unit 6 that converts an AC voltage supplied from the commercial power supply 5 into a DC voltage, a DC voltage supplied from the rectifying / smoothing unit 6 to generate a high-frequency current, and the generated high-frequency current Is provided to the heating coil 2. An input current detection unit 9 for detecting an input current flowing from the commercial power supply 5 to the rectifying / smoothing unit 6 is provided between the commercial power supply 5 and the rectifying / smoothing unit 6. Based on the signal transmitted from the operation unit 4 and the temperature detected by the infrared sensor 3, the control unit 8 controls on / off of the switching element and controls on / off of the switching element of the inverter circuit 7, A high-frequency current supplied from the inverter circuit 7 to the heating coil 2 is controlled.

  Further, it has a notification unit 13 and is configured by a speaker or the like for explaining the name of the last operated switch or outputting audio data in accordance with each setting state such as an operation explanation mode.

  FIG. 2 shows a top view of the top plate 1. On the top plate 1, at least one or more (two in the present embodiment) heating units 11 indicating the place where the article to be heated 10 is placed are displayed by printing. The heating coils 2 are respectively disposed below the heating unit 11. A display unit 12 is provided on the front side (user side) of the heating unit 11. The display unit 12 displays the magnitude of the output of the heating coil 2, the remaining time of the timer, characters for identifying the operation mode, and the like. The operation mode is a type of heating operation controlled by the inverter circuit 7, for example, a preheating mode for performing preheating suitable for frying, a heating mode for performing normal heating, and an oil suitable for frying. There is a fried food mode that adjusts the temperature, and a fried food mode that performs preheating suitable for baking and then adjusts the temperature. Further, the present embodiment includes an operation explanation mode that is shifted to the operation mode by continuously operating the voice switch 16 after the main power switch 15 is pressed. Further, the display unit 12 includes an operation explanation mode display unit 12a for guiding the transition after the transition to the operation explanation mode.

  The operation unit 4 is provided on the front side (user side) of the display unit 12. The operation unit 4 includes a turn / on key 4a to a-key 4f which are a plurality of capacitance type switches. The switches OFF / ON key 4a to -key 4f are switches for inputting instructions related to cooking, and are provided corresponding to the number of heating units 11. Also included is a voice switch 16 for shifting to the operation explanation mode.

  A specific function is assigned to each of the switch OFF / ON keys 4a to 4f of each switch. For example, the switch ON / OFF key 4a is a switch ON / OFF to which a function for controlling the start and end of cooking is assigned.

  The menu key 4b of the switch is a menu switch to which a function for switching to an operation mode suitable for the cooking menu of “heating”, “preheating”, “fried food”, and “baked food” is assigned. By pressing the menu key 4b of the switch, characters and illustrations blink in the order of “heating”, “preheating”, “fried food”, and “baked food”, and the selection of the operation mode is switched. When the operation mode of “heating”, “preheating”, “fried food”, or “baked food” is selected, when the switch OFF / ON key 4a is operated, the selected operation mode is determined, and the determined operation is performed. The display corresponding to the mode is turned on, and the display corresponding to the operation mode that has not been determined is turned off.

  The switch up key 4c is a thermal power setting switch to which a function for increasing the thermal power is assigned. The switch down key 4d is a thermal power setting switch to which a function for reducing thermal power is assigned.

  FIG. 3 shows an operation flowchart in the first embodiment of the present invention.

In the present embodiment, the cooking device configured as shown in FIGS.
The flowchart will be described.

  In FIG. 3, the main power switch 15 is turned on, and the process proceeds to step 1.

  In step 1, the display unit 12 and the notification unit 13 guide that the mode can be shifted to the operation explanation mode.

  Thereafter, the process proceeds to step 1a to check whether or not there is an input of a switch to the operation unit 4. If there is an input, the process proceeds to step 2. If not, step 1a is repeated and input confirmation is continued.

  In step 2, it is determined whether or not the input operation is performed by the voice switch 16. If the voice switch 16 is used, the operation shifts to the operation explanation mode.

  After shifting to the operation explanation mode, step 3 notifies the user of the fact that it has shifted to the action explanation mode for explaining the operation method of the device by the display unit 12 or the notification unit 13.

  In step 4, the operation explanation mode is executed. Details of the operation explanation mode will be described later.

  When the operation explanation mode of step 4 ends, the normal mode (step A) is restored. If the operation explanation mode is ended and it is desired that the operation explanation mode can be entered again if there is no input other than the voice switch 16, the transition destination may be set to step 1a.

  If the operation input at step 2 is not an input by the voice switch 16, the process proceeds to step A. However, step A performs a normal mode operation such as menu selection and cooking other than the operation explanation mode corresponding to the input.

  Next, step B shifts to step C if the voice switch 16 is operated. If not, the normal mode operation is continued.

  In step C, the voice switch 16 during the normal mode operation performs an operation other than the operation explanation mode. For example, there is an operation of operating once and explaining the name of the described switch again for the user to ask the user again at the notification unit 13.

  In the present embodiment, the operation of the voice switch 16 during the normal mode operation is a rehearsal operation. However, other notification contents other than the step 4 operation explanation mode related to voice, such as voice output volume switching and voice on / off. Related operations may be used.

  After the description of the names of the switches in step C is completed, the process proceeds to step D.

  Step D determines whether or not the main power switch 15 is turned off. If it is turned off, the operation of the induction heating cooker is terminated, and if it is not turned off, the process proceeds to step B.

  Further, during the operation explanation mode of step 4, the operation explanation mode can be exited even by input from the main power switch 15 or the voice switch 16.

  4A to 4G show a display section in the operation explanation mode in Embodiment 1 of the present invention.

  When the operation explanation mode is entered, the menu key 4b for the left and right heaters and the operation explanation mode display section 12a blink (FIG. 4C), and the notifying section 13 starts the explanation of the operation method. When listening to the explanation for the left heater Press the flashing menu button on the left.To listen to the explanation on the right heater, press the flashing menu button on the right.The explanation time is about 8 minutes in total.End explanation If you want to, press the voice button. "

  In addition, the structure which has the grill heater etc. which bake a fish also exists in the conventional induction heating cooking appliance, You may make it the structure which selects and demonstrates a grill heater in operation | movement description mode.

  When the left heater menu key 4b is pressed and the left heater operation explanation is selected, the left heater menu key 4b and off / on key 4a are lit, and the operation explanation mode display section 12a blinks (FIG. 4D). When you start cooking, press the menu button that is lit on the top plate. When you press the menu button, the letters on the cooking menu will light. " Inform. Next, a display as if the menu key 4b of the left heater was actually pressed is displayed, informing you that the menu can be selected in sequence. “Every time you press the menu button, the flashing position of the character changes and the menu you want to cook is selected. It is possible to notify. "

  Subsequently, a display as if the menu key 4b was pressed is performed, and a display is displayed as if the OFF / ON key 4a is pressed while the heating character is blinking. As a result, the + key 4e, the-key 4f, the up key 4c, the down key 4d, the OFF / ON key 4a, the thermal power display unit 12b, and the unselected menu display unit 12c are lit, and the selected menu display unit ( 12c, and the operation explanation mode display section 12a blinks (FIG. 4E). “When normal cooking is performed, the menu button is pressed so that the heating character blinks. When the start button is pressed, heating is started. When cooking is finished, the off button is pressed and heating is stopped. "

  Next, a display is made as if the up key 4c is pressed, and the thermal power display portion 12b is changed to 9 of thermal power, and at the same time, the notification is made that "If the △ button is pressed during heating, the thermal power can be changed." .

  Next, a display is made as if the + key 4e of the timer has been pressed, and the timer display section 12d is displayed as, for example, “0:05”, “If the timer button is pressed, the timer can be set and the remaining time When the time has elapsed and the remaining time displayed becomes zero, the heating is automatically stopped.

  Note that the timer countdown display may be performed after the timer remaining time is displayed on the timer display unit 12d.

  Finally, when the left heater operation explanation mode ends, the left and right heater menu keys 4b and the operation explanation mode display section 12a are lit (FIG. 4G), and “Please check the instruction manual for detailed explanation.” Notification is made by the notification unit 13. Then, the process proceeds to step 3 and the operation explanation mode is selected again.

  With such a series of display and notification linked operations, the operation method can be understood as if it were actually operated.

As described above, in the induction heating cooker configured as described above, the main power switch 15 is depressed, and only when the voice switch 16 is continuously operated without performing other operations, the operation is switched to the operation explanation mode. Even if the user shifts to the operation explanation mode, no explanation is given every time the user operates, and the user-friendliness can be improved without the user feeling troublesome.

  Further, the user can reliably select the operation explanation mode by depressing the main power switch 15 and guiding the display section 12 and the notification section 13 that the operation explanation mode can be shifted. Thus, it is possible to improve the user's usability for the operation explanation mode.

  In FIG. 4B of the present embodiment, the left and right heater menu keys 4b and the operation explanation mode display unit 12a are turned on at the step 1 (after pressing the main power switch 15) shown in FIG. The recognition that the user has shifted to the operation explanation mode can be increased, and the user's usability for the operation explanation mode can be improved.

  Further, since step 1 described in FIG. 3 of the present embodiment is not in the operation explanation mode, the operation explanation is not notified, but it may be configured to notify the user that the operation can be shifted to the operation explanation mode.

  Thereby, the user can surely select the operation explanation mode, and the user's usability for the operation explanation mode can be improved.

(Embodiment 2)
In the present embodiment, the induction cooking device configured as shown in FIG. 1 will be described with reference to the flowchart of FIG. 5 based on the first embodiment.

  In FIG. 5, the flowchart in operation | movement explanatory mode of the induction heating cooking appliance in the 2nd Embodiment of this invention is shown.

  In step 6, the presence / absence of input of each predetermined switch operation designated in the operation explanation mode is confirmed. If there is an input, the process proceeds to step 7 to explain each operation corresponding to each predetermined switch operation (step 7). If not, the process proceeds to step 8.

  Step 8 accepts each predetermined switch operation not specified in the operation explanation mode, and invalidates the operation. Subsequently, the display unit 12 or the notification unit 13 notifies the user that the operation is invalid.

  In the present embodiment, the step 8 may be a buzzer sound, sound output, lighting of the display unit, or blinking.

  In this way, when the user reliably presses a predetermined switch during the operation explanation mode, it becomes possible to eliminate a malfunction due to a user's misidentification and listen to the explanation, thereby further improving usability. .

  As described above, the induction heating cooker according to the present invention will not be explained each time the user operates it even if it is not intended to shift to the operation explanation mode, and the user is bothered. Since the user's usability can be easily improved without making it feel, it can be applied to AV equipment and other household appliances.

DESCRIPTION OF SYMBOLS 1 Top plate 2 Heating coil 3 Infrared sensor 4 Operation part 4a Off / on key 4b Menu key 4c Up key 4d Down key 4e + key 4f-key 5 Commercial power supply 6 Rectification smoothing part 7 Inverter circuit 8 Control part 9 Input current detection part DESCRIPTION OF SYMBOLS 10 Heated object 11 Heating part 12 Display part 12a Operation explanation mode display part 12b Thermal power display part 12c Menu display part 12d Timer display part 13 Notification part 14 Light source 15 Main power switch 16 Voice switch

Claims (5)

A main power switch for inputting on / off of the main power supply, a control unit for controlling the inverter unit including the heating coil, an operation unit for setting the operation state, a display unit for displaying the setting state, and a notification of the setting state by voice. A notification unit, and a mode transition unit for transitioning to an operation explanation mode for explaining an operation method in either or both of the display unit and the notification unit,
The induction heating cooker that shifts to the operation explanation mode only when the main power switch is pressed and the operation of the mode transition unit is continued without performing other operations. The guidance according to claim 1, wherein after the main power switch is pressed and an operation other than the mode transition unit is subsequently performed on the operation unit, an operation other than the operation explanation mode is performed when the mode transition unit is further operated. Cooking cooker. The induction heating cooker according to claim 1 or 2 , wherein the display unit and the notification unit guide the fact that the main power switch is pressed and the mode can be shifted to the operation explanation mode. The induction heating cooker according to any one of claims 1 to 3 , wherein when the mode is shifted to the operation explanation mode, the display unit or the notification unit guides the transition to the operation explanation mode. The induction heating cooker according to any one of claims 1 to 4 , wherein during the operation explanation mode, operations other than predetermined switches of the operation unit are invalidated.