JP4251231B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker used in general homes, offices, restaurants and the like.

  Conventionally, this type of induction heating cooker is provided with an infrared sensor on the side surface of a cooking container to detect the temperature of the side surface of the cooking container and control the amount of heating (for example, see Patent Document 1).

  FIG. 5 shows a conventional induction heating cooker described in Patent Document 1. As shown in FIG. As shown in FIG. 5, a top plate 2 on which the cooking container 1 is placed, a heating coil 3 disposed below the top plate 2, and an infrared sensor disposed facing the side surface of the cooking container 1. 4, operating means 5 for operating heating on or off, a control circuit 6 for inductively heating the cooking container 1 by applying a high-frequency current to the heating coil 3, and a load for specifying the material of the cooking container 1 based on inverter characteristics A detection means 7 and a database 8 for correcting the emissivity of the cooking container 1 based on the temperature signal of the infrared sensor 4 and the signal of the load detection means 7 are provided. When heating is started by pressing the power source or the operation switch of the operation unit 5, a high frequency magnetic field is generated from the heating coil 3 by a signal from the control means 6. The cooking vessel 1 is heated by this high frequency magnetic field and the temperature rises. The load detection means 7 detects whether the cooking vessel 1 is an iron-based pan, a nonmagnetic stainless steel pan, or a pan that cannot be heated based on the inverter characteristic information. Since the emissivity of the cooking container 1 is as high as 0.8 for iron-based materials and as low as 0.1 for non-magnetic stainless steel, there is an error in the temperature value of the infrared sensor. In order to eliminate this error, the feature is that the emissivity of the cooking container 1 is corrected using the database 8. In the technique disclosed in this document, the emissivity of the cooking container 1 is obtained by the load detection means 7, the temperature of the infrared sensor 4 is corrected, and the temperature of the cooking container 1 is detected.

  Moreover, there exists what has provided the infrared sensor in the lower surface for cooking, and has detected the bottom face temperature of the cooking container and controlled the heating amount (for example, refer patent document 2).

This induction heating cooker includes infrared sensors that detect infrared intensities in different wavelength ranges, and detects the emissivity of the cooking vessel from the infrared intensities in different wavelength ranges to detect the temperature of the cooking vessel. It is.
JP 2003-264055 A JP 2003-109736 A

  However, in the conventional configuration, in a cooker in which an electric heater such as a radial heater is combined in addition to induction heating, light energy radiated from the electric heater is incident on the infrared sensor. Therefore, in order to detect light energy other than a cooking container, there existed a subject that an error arises in detection temperature of an infrared sensor.

  The present invention solves the above-mentioned conventional problems, and disables the operation of the electric heater during induction heating, eliminates the light energy radiated from the electric heater because the electric heater is not energized, and cooks by induction heating. An object of the present invention is to provide an induction heating cooker in which the temperature of a container can be detected stably.

In order to solve the above conventional problems, the induction heating cooker of the present invention includes a top plate for placing the that tone barber unit to heat the food, the induced magnetic field to heat the cooking container a heating coil for generating an infrared sensor for detecting the temperature of the cooking container through the top plate, the induction heating control means for controlling the heating power by controlling the high frequency current of the heating coil by the temperature information of said infrared sensor And an electric heater that is arranged separately from the heating coil in a horizontal direction and is positioned in the vicinity of the infrared sensor and radiates infrared rays, and heating or stopping the induction heating control means and the electric heater is operated. and an operation unit, wherein the operating means, when the induction heating control means is heating operation based on the temperature information of said infrared sensor, the heating of the electric heater So that to invalidate the work.

  The induction heating cooker of the present invention eliminates the influence of light energy emitted from the electric heater during induction heating, and the infrared sensor can stably detect the temperature of the cooking container.

The first invention includes a top plate for placing the to that tone hairdressing device heating the food, a heating coil for generating an induced magnetic field to heat the cooking container, the cooking through the top plate Infrared sensor for detecting the temperature of the container, induction heating control means for controlling the heating power by controlling the high-frequency current of the heating coil based on the temperature information of the infrared sensor, and separating the heating coil in a horizontal direction. an electric heater that emits the position and and infrared in the vicinity of the disposed the infrared sensor, e Bei and operating means for operating the heating or stop the induction heating control unit and the electric heater, the operating means, said induction When the heating control means is heating based on the temperature information of the infrared sensor, the infrared sensor is adjusted so that the heating operation of the electric heater is invalidated. The temperature of the vessel can be stably detected.

In the second invention, in particular, the operation means of the first invention includes a top plate for placing a cooking container for heating the cooked food, and a heating coil for generating an induction magnetic field for heating the cooking container. An infrared sensor for detecting the temperature of the cooking container via the top plate, induction heating control means for controlling heating power by controlling a high-frequency current of the heating coil according to temperature information of the infrared sensor, and the heating coil And an electric heater which is arranged separately in the horizontal direction and is located in the vicinity of the infrared sensor and emits infrared rays, and an induction heating control means and an operation means for operating heating or stopping of the electric heater. , during heating by an electric heater so as to invalidate the heating operation of the induction heating control unit, the infrared sensor temperature detection by the light energy emitted from the electric heater It is possible to prevent the error.

A third invention is, in particular, the operating means of the first invention, the operation means, the induction heating control means to control the heating amount of the cooking container by the temperature information of the infrared sensor to an automatic cooking means Ru allowed to proceed automatic cooking e Bei the door, said during automatic cooking so as to invalidate the heating operation of the electric heater, infrared sensor stably detect the temperature of the cooking container can be automatic cooking.

According to a fourth aspect of the invention, in particular, the operating means of the second aspect of the invention comprises an automatic cooking means for causing the induction heating control means to control the amount of heating of the cooking container according to the temperature information of the infrared sensor to advance automatic cooking, during heating in the formula heater so as to invalidate the heating operation of the automatic cooking, it is possible to prevent the temperature detection error occurs in the detection of the infrared sensor with light energy emitted from the electric heater.

In a fifth aspect of the invention, in particular, the induction heating control means of any one of the first to fourth aspects of the invention comprises heater energization detecting means for detecting that the electric heater is energized, and the heater energization detecting means comprises If the electric heater is detected that is energized so as to invalidate the information of the infrared sensor, even when the induction heating and the electric heater is cooking both infrared sensor temperature of the cooking container Can be detected stably.

According to a sixth aspect of the present invention, there is provided a top plate for placing a cooking container for heating a cooked food, a heating coil for generating an induction magnetic field for heating the cooking container, and the cooking container via the top plate. An infrared sensor for detecting temperature; induction heating control means for controlling heating power by controlling a high-frequency current of the heating coil based on temperature information of the infrared sensor; Heater, an operation unit for operating heating or stopping of the electric heater, and the operation unit is configured such that the induction heating control unit performs a heating operation based on temperature information of the infrared sensor. If, while invalidates the heating operation of the electric heater, the induction heating control means, set time from the electric heater is stopped energization The so as to invalidate the information of the infrared sensor, even when the induction heating and the electric heater is cooked together can infrared sensor stably detect the temperature of the cooking container.

In the seventh aspect of the invention, in particular, the operation means according to any one of the first to fourth aspects is an operation for notifying by sound or display when the heating operation of either the induction heating control means or the electric heater is invalidated. By providing the invalidity notification means, it is possible to notify the user of the invalidity of the heating operation.

  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 cross-sectional view of an induction heating cooker according to the first embodiment of the present invention.

In FIG. 1, cooking containers 21a and 21b for heating a cooked food, a top plate 22 for placing the cooking containers 21a and 21b, a heating coil 23 for generating an induction magnetic field for heating the cooking containers 21a, An infrared sensor 24 comprising a photodiode for detecting the temperature of the cooking vessel 21a via the top plate 22, and induction heating for controlling the heating power by controlling the high frequency current of the heating coil 23 according to the temperature information of the infrared sensor 24. Heat control means 25, an electric heater 26 that is located in the vicinity of the infrared sensor 24 and radiates infrared rays comprising a radial heater that heats the cooking vessel 21b, and heating of the induction heating means 25 and the electric heater 26 Alternatively, an operating means 27 for operating the stop is provided. The operation means 27 disables the heating operation of the electric heater 26 when heating is performed based on the temperature information of the infrared sensor 24.

  The top plate 22 is made of a lithium ceramic material. As for the infrared transmittance of the top plate 22, a wavelength of 2.5 μm or less is transmitted well, and a wavelength of 2.5 μm to 4 μm or less is transmitted by several tens of percent. Moreover, 4 μm or more is hardly transmitted.

  The infrared sensor 24 is formed of an InGaAs (indium gallium arsenide) photodiode, and has a light receiving sensitivity wavelength of approximately 0.7 μm to approximately 2.7 μm.

  The infrared sensor 24 uses a photodiode, but a PIN photodiode, PbS (lead sulfide), PbSe (lead selenide), or Ge (germanium) can perform the same operation. The infrared sensor 24 may use a thermal infrared detection element such as a thermopile or a pyroelectric element, and the same effect can be obtained even if a transmission window through which infrared rays are transmitted is used for the top plate.

  Furthermore, although the infrared sensor 24 is provided at the center of the placement portion of the cooking container 21a of the top plate 22, it is sufficient that the temperature of the cooking container 21a can be detected, and is not limited to the configuration of the present embodiment. Further, a plurality of the infrared sensors 24 are provided so that the temperature of the cooking container 21a can be detected, and the temperature distribution of the cooking container 21a is detected to control the temperature of the cooking container 21a with higher accuracy.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when a power supply (not shown) is turned on and heating is started by a switch of the operation means 27, the induction heating control means 25 supplies a high frequency current to the heating coil 23. When a high-frequency current is supplied to the heating coil 23, an induction magnetic field is generated from the heating coil 23, and the cooking vessel 21a placed on the top plate 22 is induction-heated. Due to this induction heating, the temperature of the cooking vessel 21a rises and the object to be heated in the cooking vessel 21a is cooked. At this time, the induction heating control means 25 can grasp the progress of cooking of the object to be heated based on the temperature information from the infrared sensor 24, and adjusts the power supplied to the heating coil 23 according to the progress of cooking. is there. Thus, the food to be cooked in the cooking container 21a is cooked.

  The infrared sensor 24 is composed of an infrared sensor made of a photodiode, and detects the thermal energy radiated from the bottom surface of the cooking vessel 21a through the top plate 22. The infrared sensor 24 calculates the temperature of the cooking vessel 21 by changing the amount of light, which is the thermal energy, into current or voltage. Thus, since the infrared sensor 24 detects the bottom surface of the cooking vessel 21a in a non-contact manner and calculates the temperature of the cooking vessel 21a, the responsiveness is fast and the temperature of the cooking vessel 21a is accurately detected. It is something that can be done. For this reason, the electric power control with respect to the heating coil 23 of the induction induction heating control means 25 is also adapted to the temperature change of the cooking vessel 21a.

  The light receiving sensitivity of the infrared sensor 24 overlaps with the transmittance of the top plate 22, and the light energy emitted from the cooking container 21 can be detected to detect the bottom temperature of the cooking container 21.

  The electric heater 26 heats the cooking vessel 21b with this radiant heat when the heater wire made of a radiant heater becomes red hot. This radiant heat is transmitted by repeatedly reflecting between the top plates 22 in addition to the infrared rays being emitted from the red-heated heater and being emitted to the cooking vessel 21 b, and is incident on the detection range of the infrared sensor 24. Due to the incident infrared rays, the infrared sensor 24 detects infrared rays other than the temperature of the cooking vessel 21a, so that an error occurs in temperature detection of the cooking vessel 21a.

  That is, the infrared sensor 24 can accurately detect the temperature of the cooking vessel 21a by disabling the heating operation of the electric heater 26 during induction heating and not energizing the electric heater 26.

  The electric heater 26 is the same as a sheathed heater in that infrared rays are radiated from a red-heated heater, and an effect is obtained when there is a heating element such as a heater in the vicinity of the infrared sensor 24.

  As described above, in the present embodiment, during the induction heating, the operation means 27 is configured not to accept the switch input of the heating operation of the electric heater 26 by the user, and during the induction heating, the heating operation of the electric heater 26 is performed. By disabling, temperature detection with an infrared sensor can be performed accurately. Further, the invalidation of the heating operation of the electric heater 26 is that, during the induction heating, the operation means 27 accepts the switch input of the heating operation of the electric heater 26 by the user, but the operation means 27 sends the electric heater 26 to the electric heater 26. The heating operation of the electric heater 26 may be invalidated by stopping energization of the electric heater 26 so as not to heat it. And the induction heating cooking appliance which can detect the temperature with an infrared sensor correctly is realized by invalidating the heating operation of the electric heater 26 during induction heating.

(Embodiment 2)
The second embodiment of the present invention is different from the first embodiment in that the operation means 27 disables the heating of the induction heating control means 25 during heating by the electric heater 26.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the electric heater 26 is energized and the cooking vessel 21 b is heated, infrared rays are radiated from the heater of the electric heater 26. This infrared ray is transmitted through the top plate 22 and is incident on the infrared sensor 24. Due to the incident infrared rays, the infrared sensor 24 causes an error in temperature detection of the cooking vessel 21a. In order to prevent the temperature detection error of the infrared sensor 24, the operation means 27 detects the temperature of the infrared sensor 24 by disabling the heating operation of the induction heating control means 25 while the electric heater 26 is heating, and not performing induction heating. An error can be prevented from occurring.

  As described above, in the present embodiment, the operation unit 27 prevents the user from receiving a switch input of the heating operation of the induction heating control unit 25 while the electric heater 26 is heating, and invalidates the heating operation. Thus, the temperature detection error of the infrared sensor 24 by the electric heater 26 can be prevented.

(Embodiment 3)
FIG. 2 is a cross-sectional view of the induction heating cooker according to the embodiment of the present invention.

  The third embodiment of the present invention is different from the first embodiment in that the operating means controls automatic cooking means 28 for automatically cooking by controlling the heating amount of the cooking vessel 21a based on the temperature information of the infrared sensor 24. The heating operation of the electric heater 26 is invalidated during automatic cooking.

  The automatic cooking means 28 stores the cooking process and controls the heating amount according to the temperature information of the infrared sensor 24 to advance the cooking process. By allowing this cooking process to proceed automatically, boiling water, cooked rice, stewed foods, and fried foods can be cooked automatically.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When automatic cooking is started by the operation means 27, the automatic cooking means 28 is proceeding with the cooking process. The automatic cooking means 28 advances automatic cooking based on the temperature information of the infrared sensor 24, and the induction heating control means 25 controls the high frequency current of the heating coil 23 to control the heating power. The cooking vessel 21a is heated to an appropriate temperature by the control of the heating power, and automatic cooking proceeds. During the automatic cooking, the cooking process proceeds based on the temperature information of the infrared sensor 24, and it is necessary to prevent the temperature detection error of the infrared sensor 24 caused by the infrared rays emitted from the electric heater 26. During automatic cooking, the heating operation of the electric heater 26 is disabled, so that the electric heater 26 is not energized, so that a temperature detection error of the infrared sensor 24 is prevented.

  In addition, although the automatic cooking means 27 is made into the said cooking content, what combined the cooking content may be used and it is not restricted to this Embodiment.

  As described above, in the present embodiment, the operation means 27 disables the heating operation of the electric heater 26 during automatic cooking, thereby preventing the temperature detection error of the infrared sensor 24 by the electric heater 27. The temperature of the cooking container 21a can be accurately detected.

  That is, during the induction heating, the operation means 27 does not accept the switch input of the heating operation of the electric heater 26 by the user, and the heating operation of the electric heater 26 is invalidated during the induction heating, so that the infrared sensor. Temperature detection can be performed accurately. Further, the invalidation of the heating operation of the electric heater 26 is that, during the induction heating, the operation means 27 accepts the switch input of the heating operation of the electric heater 26 by the user, but the operation means 27 sends the electric heater 26 to the electric heater 26. The heating operation of the electric heater 26 may be invalidated by stopping energization of the electric heater 26 so as not to heat it. And the induction heating cooking appliance which can detect the temperature with an infrared sensor correctly is realized by invalidating the heating operation of the electric heater 26 during induction heating.

(Embodiment 4)
The fourth embodiment of the present invention is different from the first embodiment in that the operation means 27 disables the heating of the automatic cooking while the electric heater 26 is heating.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  While the electric heater 26 is energized and heated, infrared rays are radiated from the heater. The infrared sensor 24 receives this infrared ray, and a temperature detection error occurs. The automatic cooking proceeds according to the temperature information of the infrared sensor 24. If an error occurs in temperature detection, cooking cannot proceed correctly. While the electric heater 26 is being heated, by disabling the heating operation of automatic cooking, automatic cooking is not performed and inappropriate automatic cooking can be prevented.

  As described above, in the present embodiment, the operation means 27 disables the automatic cooking while the electric heater 26 is heated, thereby preventing the automatic cooking that proceeds with inappropriate temperature detection. it can.

(Embodiment 5)
FIG. 3 is a cross-sectional view of the induction heating cooker according to the embodiment of the present invention.

  The fifth embodiment of the present invention is different from the first embodiment in that the induction heating control means 25 includes a heater energization detecting means 29 for detecting that the electric heater 26 is energized, When the electric heater 26 is energized, the information of the infrared sensor 24 is invalidated.

  The electric heater 26 detects the heater temperature in the electric heater 26 with bimetal, and stops energization if the temperature is equal to or higher than a predetermined temperature, and controls the heater temperature by energizing if the temperature is lower than the predetermined temperature. The heater energization detecting means 29 detects the current flowing through the electric heater 26 and determines the energization state of the heater.

  The heater energization detection means 29 determines the energization state based on the current flowing through the heater. However, it is sufficient if the energization state of the heater can be determined by determining the energization based on a signal from a temperature detection means such as a bimetal. It is not limited to the configuration.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the heater of the electric heater 26 is energized, the heater temperature rises. As the heater temperature increases, more infrared rays are emitted. Infrared rays increase in proportion to the temperature of the emitted object. When the heater temperature increases, more infrared rays are emitted from the heater, and more infrared rays enter the infrared sensor 24. For this reason, when the electric heater 26 is energized, the temperature information of the infrared sensor 24 is invalidated. In addition, when the electric heater 26 is de-energized, the temperature of the heater is lowered and the infrared rays emitted from the electric heater 26 are also lowered. While the induction heating control means 25 heats the cooking container 21a and the electric heater 26 heats the cooking container 21b, the heater energization detection means 29 determines the energization state of the electric heater 26, and the infrared sensor. 24 temperature information is used or not. Thus, the electric heater 26 switches the use of the temperature information of the infrared sensor 24 depending on the energized state, so that the temperature detection error of the cooking container 21a can be reduced and the cooking container 21a can be continuously heated.

  As described above, in the present embodiment, when the electric heater 26 is energized, the heater energization detecting means 29 invalidates the information of the infrared sensor 24, thereby reducing the temperature detection error of the infrared sensor 24. The cooking container 21a can be heated.

(Embodiment 6)
The sixth embodiment of the present invention is different from the first embodiment in that the induction heating control means 25 invalidates the information of the infrared sensor 24 within a set time after the electric heater 26 stops energizing. And so on.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the electric heater 26 is energized, the temperature of the heater rises and infrared rays are emitted from the heater. When the electric heater 26 is de-energized, the heater temperature decreases. At this time, the temperature drop of the heater takes time for the temperature drop due to the heat capacity of the heater wire or the outer shell of the heater that insulates the outer periphery of the heater. Immediately after the electric heater 26 is de-energized, the temperature drop of the heater is slight. Considering the time of this temperature decrease, the influence of infrared rays emitted from the electric heater 26 is reduced. The temperature information of the infrared sensor 24 is invalidated and the temperature of the cooking container 21a can be detected by the infrared sensor 24 within the set time after the induction heater control means 25 stops energizing the electric heater 26.

  As described above, in the present embodiment, the information of the infrared sensor 24 is invalidated within the set time after the electric heater 26 stops energization by the induction heating control means 25, so that the cooking vessel 21 a It can cook by detecting the temperature.

(Embodiment 7)
FIG. 4 is a cross-sectional view of the induction heating cooker according to the embodiment of the present invention.

  The seventh embodiment of the present invention is different from the first embodiment in that the operation means 27 notifies the operation invalidity by displaying a buzzer sound or displaying an LED or a liquid crystal when the heating operation is invalidated. Operation invalidity notification means 30 is provided to notify the user of the invalidity of the heating operation.

  About the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the heating operation is invalidated, the operation invalidity informing means 30 sounds a buzzer sound a plurality of times to notify the user of the invalidity of the operation.

  It is also conceivable that an abnormality is notified to a display unit such as a liquid crystal that displays a heating state (not shown) when the heating operation is invalidated.

  As described above, when the heating operation is invalidated, the user can be notified by the sound or display that the heating operation is invalid. The user can recognize the invalidity of the operation by the operation invalidity notification means.

  In addition, although the operation invalidity alerting | reporting means 30 is alert | reported by sounding a buzzer sound in multiple times, what is necessary is just to be able to alert | report to a user, and is not restricted to the form of a present Example.

  As described above, in the present embodiment, when the operation means 27 invalidates the heating operation, the operation invalidity notification means 30 notifies the user of the invalidation of the heating operation by sound or display, thereby improving usability. Can be made.

  As described above, the induction heating cooker according to the present invention prevents the influence of infrared rays radiated from the electric heater in the cooking appliance in which an electric heater such as a radial heater is combined in addition to induction heating, Since the temperature of the cooking container can be stably detected by the infrared sensor, it can also be applied to uses such as induction heating cookers used in general homes, offices, restaurants and the like.

The figure which shows the structure of the induction heating cooking appliance in Embodiment 1, 2 of this invention. The figure which shows the structure of the induction heating cooking appliance in Embodiment 3 and 4 of this invention. The figure which shows the structure of the induction heating cooking appliance in Embodiment 5, 6 of this invention. The figure which shows the structure of the induction heating cooking appliance in Embodiment 7 of this invention. The figure which shows the structure of the induction heating cooking appliance of a prior art example

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Cooking container 22 Top plate 23 Heating coil 24 Infrared sensor 25 Induction heating control means 26 Electric heater 27 Operation means 28 Automatic cooking means 29 Heater energization detection means 30 Operation invalidity notification means

Claims (7)

Detecting a top plate for placing the that tone barber unit to heat the food, a heating coil for generating an induced magnetic field to heat the cooking container, the temperature of the cooking container through the top plate An infrared sensor, induction heating control means for controlling the heating power by controlling the high-frequency current of the heating coil according to temperature information of the infrared sensor, the heating coil being separated from the heating coil in a horizontal direction and arranged separately . e Bei an electric heater that emits the position and and infrared near, and operating means for operating the heating or stop the induction heating control unit and the electric heater, the operating means, the induction heating control means the infrared An induction heating cooker that disables the heating operation of the electric heater when the heating operation is performed based on the temperature information of the sensor. A top plate for placing a cooking container for heating the cooked food, a heating coil for generating an induction magnetic field for heating the cooking container, and an infrared sensor for detecting the temperature of the cooking container via the top plate And induction heating control means for controlling the heating power by controlling the high-frequency current of the heating coil based on the temperature information of the infrared sensor, and the heating coil is separated from the heating coil in a horizontal direction and is arranged in the vicinity of the infrared sensor. position is and the electric heater emitting infrared rays, and an operating means for operating the heating or stop the induction heating control unit and the electric heater, the operating means, when being heated by the electric heater induction cooker invalidate the heating operation of the induction heating control means. Operating means, e Bei and automatic cooking means Ru allowed to proceed for automatic cooking induction heating control means to control the heating amount of the cooking container by the temperature information of the infrared sensor, the said during automatic cooking the heating operation of the electric heater The induction heating cooker according to claim 1, which is invalidated. Operating means, induction heating control means to control the heating amount of the cooking container by the temperature information of the infrared sensor and an automatic cooking means to advance the automatic cooking, the in a heated electric heater heating operation of the automatic cooking The induction heating cooker according to claim 2, which is invalidated. IH control unit, e Bei heater energization detecting means electric heater is detected that it is energized, the infrared sensor when the heater energization detecting means detects that the electric heater is energized The induction heating cooker according to any one of claims 1 to 4, wherein the information is invalidated. A top plate for placing a cooking container for heating the cooked food, a heating coil for generating an induction magnetic field for heating the cooking container, and an infrared sensor for detecting the temperature of the cooking container via the top plate And induction heating control means for controlling the heating power by controlling the high-frequency current of the heating coil according to the temperature information of the infrared sensor, the electric heater that is located near the infrared sensor and that emits infrared rays, and the induction A heating control means and an operating means for operating heating or stopping of the electric heater, and the operating means is configured to perform the heating operation when the induction heating control means is heating based on temperature information of the infrared sensor. while invalidates the heating operation of the heater, the induction heating control means is within the set time from the electric heater is stopped energization the infrared Induction cooker you invalid information capacitors. 5. The operation invalidity notification unit according to claim 1, further comprising an operation invalidity notification unit configured to notify by sound or display when the heating operation of either the induction heating control unit or the electric heater is invalidated. 6. Induction heating cooker.

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