JP2001023764A - Induction heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an induction heating cooker capable of enhancing safety during use and varying settings according to the use environment. SOLUTION: In this induction heating cooker (electromagnetic cooker 1) having an induction heating coil 14 for induction heating an object to be heated 17 and a temperature detecting means (temperature sensor 15) for detecting the temperature of the object to be heated 17, an alarm means is provided which outputs an alarm sound when the temperature detecting means detects that the object to be heated 17 has reached a predetermined temperature. The alarm means is periodically operated when the temperature of the object to be heated 17 rises above 30 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic cooker and the like.
The present invention relates to an induction heating cooker to which an H-type heating mechanism is applied.

[0002]

2. Description of the Related Art This type of induction heating cooker is for cooking without using a fire, and is provided with an object to be heated such as a pot having a magnetic material provided on a surface thereof on a non-conductive glass plate. When the user operates a switch on the operation / display panel to adjust the heating amount to a desired value, the control means controls the energization of the induction heating coil to inductively heat the object to be heated.

[0003] This induction heating cooker is disclosed in Japanese Unexamined Patent Publication No.
Japanese Patent No. 73963 discloses a device in which a switch for checking the current state is provided, and when the operation of the switch is detected, the current state is detected by the checking means and the sound is output by the sound generating means.

Japanese Patent Laid-Open No. 10-69971 discloses an induction heating cooker in which a display unit displays a set temperature by a user and a current temperature.

[0005]

However, in each of the induction heating cookers, since it is known that the cooking user is using it, the confirmation switch is operated or the display unit is operated. To confirm the current situation, others may think that the pot is unused and touch the pot that has been inadvertently placed, causing burns.

Further, in the induction heating cooker disclosed in Japanese Patent Application Laid-Open No. 7-73963, if the voice output by the voice generating means is missed, the switch must be operated again. In addition, when there is another person sleeping at home, there is a possibility that discomfort may be given by notification by voice output. On the other hand, in the induction heating cooker disclosed in Japanese Patent Application Laid-Open No. 10-69971, it is inconvenient to visit the installation position of the induction heating cooker every time when it is desired to check the state.

[0007] Therefore, an object of the present invention is to provide an induction heating cooker capable of improving the safety in use and changing the setting in accordance with the use environment.

[0008]

To solve the above problems, an induction heating cooker according to the present invention comprises an induction heating coil for induction heating an object to be heated, and a temperature detecting means for detecting the temperature of the object to be heated. In the induction heating cooker provided with, a notifying means for outputting a notifying sound when the temperature detecting means detects that the object to be heated has reached a predetermined temperature is provided.

According to the induction heating cooker, when a predetermined temperature is reached, an alarm sound is issued, so that even if the user is performing another cooking operation, the user can check the temperature rising state without going to the installation position. It can be very convenient.

In the induction heating cooker, the notifying means is operated periodically when the temperature of the object to be heated reaches a predetermined temperature or higher, so that even a person who is not actually cooking uses the appliance. Since the determination can be made easily, it is possible to prevent the possibility of inadvertently touching the object to be heated (the pan).

Further, if the heating temperature of the object to be heated is divided into a plurality of ranges within a predetermined range, and a different notification sound is issued for each section, the user who cooks and the person who does not cook can be heated. Temperature can be easily determined.

Further, a plurality of types of notification sounds output by the notification means are provided, and input means for adjusting the types of notification sounds and the notification volume are provided so that the user can change the setting according to the usage environment. Therefore, it is possible to prevent the notification sound from being overlooked and the discomfort caused by the notification sound.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an electromagnetic cooker 1 which is an example of the induction heating cooker according to the present invention. This electromagnetic cooker 1 includes an induction heating coil 1 in a cooker main body 2.
4, a configuration in which a temperature sensor 15, a control device 18, and the like are accommodated.

An operation / display panel 3 shown in FIG. 3 is provided in front of the cooking device main body 2. Operation / display panel 3
Are provided with a heating switch 4, a lifting switch 5, a timer switch 6, an upper switch 7, a lower switch 8 and an off switch 9, and a liquid crystal display 10.

The liquid crystal display 10 is shown in FIG.
(B) and (C), as shown in FIG.
A temperature setting screen 12 and a notification sound setting screen 13 are displayed. As shown in FIG. 4 (A), the heating / decreasing setting screen 11 includes a display section 11a for the remaining heating time set by operating the timer switch 6, and a mark 11b for indicating the heating state.
And a level display section 11c for setting the fire level by operating the up and down switches 7, 8. As shown in FIG. 4B, the temperature setting screen 12 includes a raising display section 12a, a temperature setting display 12b, and a preheating display 12c indicating that the temperature has not reached the set temperature. The temperature setting display 12b can be changed every 10 ° C. within the range of 160 ° C. to 200 ° C. As shown in FIG. 4 (C), the notification sound setting screen 13 changes the notification sound to one of a melody sound and a general buzzer sound by operating the up / down switches 7 and 8. 13a and a volume display section 13b for adjusting the output volume of the notification sound in five steps. The melody sound may be music input in advance or music input by a user by a known method. Further, the buzzer sound is a mechanical sound called “peep”.

A high frequency current is supplied to the induction heating coil 14 from an inverter circuit by a switching element (not shown).

The temperature sensor 15 is provided on the glass plate 1.
6 is provided so as to contact the lower surface of the central portion. The temperature sensor 15 is capable of indirectly detecting the temperature of an object 17 such as a pan via a glass plate 16.

The control device 18 receives inputs from the temperature sensor 15 and the switches 4 to 9 and outputs a control signal to an inverter circuit. The inverter circuit supplies a high-frequency current to the induction heating coil 14 by a switching element according to the control signal, and induction-heats the object 17 to be heated. In this embodiment, the switches 7 to 9 of the operation / display panel 3 are used.
Is used as an input means, and when the temperature of the object to be heated 17 becomes 30 ° C. or more,
A known piezoelectric buzzer (not shown) is used as a notifying means to periodically notify the heating state. Here, the notification sound is 30 ° C. or higher, every 20 ° C. in the heating cooking process, and 30 ° C. to 50 ° C. in the cooking process of the honey.
C, 50 ° C to 100 ° C, and 100 ° C to a different sound for each set temperature are notified in 30 second cycles. Further, the sound output by the piezoelectric buzzer is output in a type set by the user and at a set volume. In addition, when the notification sound is a buzzer sound, the number of times of the mechanical sound called “peep” is made different depending on the temperature.

Next, control by the controller 18 will be described. First, when the user inserts the connection cord of the electromagnetic cooker 1 into a power source and connects the power supply, the control device 18 starts the operation shown in FIG.
The operation detection mode shown in FIG.

That is, first, in step S1, it is detected whether or not the heating switch 4 has been operated. If the operation has been detected, the process proceeds to step S2, where the heating switch is detected, and the process returns to step S1.

If the operation of the heating switch 4 is not detected in step S1, the operation proceeds to step S3.
Is detected, and if an operation is detected, the process proceeds to step S4, and after performing a lifting switch detection process, returns to step S1.

If the operation of the lifting switch 5 is not detected in step S3, it is detected in step S5 whether or not the timer switch 6 has been operated. If the operation has been detected, the process proceeds to step S6, in which the timer switch detection processing is performed. Is performed, and the process returns to step S1.

If the operation of the timer switch 6 is not detected in step S5, it is detected in step S7 whether or not the upper switch 7 has been operated. If the operation has been detected, the process proceeds to step S8, where the upper switch detection processing is performed. After performing, the process returns to step S1.

In step S7, if the operation of the upper switch 7 is not detected, it is detected in step S9 whether or not the lower switch 8 has been operated.
Proceeding to 10 and performing a lower switch detection process, then returning to step S1.

If the operation of the lower switch 8 is not detected in step S9, it is detected in step S11 whether or not the off switch 9 has been operated. If the operation has been detected, the process proceeds to step S12, where the off switch detection processing is performed. After performing, the process returns to step S1.

If the operation of the off switch 9 is not detected in step S11, it is detected in step S13 whether or not 1 is input to Fa indicating that the cooking mode is in progress. In this case, the process proceeds to step S14, and after performing the heating cooking process, returns to step S1.

In step S13, when the cooking mode is not the heating cooking mode, in step S15, it is detected whether 1 is input to Fb indicating that the cooking mode is the cooking mode, and when the cooking mode is the cooking mode. , Step S16
After performing the cooking process of the fried food, the process returns to step S1. On the other hand, when it is not in the cooking mode, the process returns to step S1.

Next, the heating switch detection processing will be described. When the operation of the heating switch is detected, the controller 18
As shown in FIG. 6, first, in step S20, it is detected whether or not 1 has been input to Fb indicating that the food is in the cooking mode. The process returns from step S21 to step S26. On the other hand, if it is not in the cooking mode, the process proceeds to step S21.

In step S21, an operation reception sound for notifying the user of the reception of the switch operation is notified, and in step S22, 1 is input to Fa indicating the heating cooking mode.

Next, in step S23, the heat control is set to the initial setting of high heat, and in step S24, the heat control setting screen 11 is turned on. Then, in step S25, after turning on a cooling fan (not shown), the process proceeds to step S26.
Then, the induction heating coil 14 is turned on and the process returns.

Next, the cooking process will be described. In this heating cooking process, as shown in FIG. 7, the control device 18 first starts a safety timer in step S30, and then in step S31, 1 is added to Fd indicating that the mode is in the heating control mode. It detects whether or not it has been input. If the mode is in the heating mode, the power supplied to the induction heating coil 14 is adjusted in step S32 according to the mode set by the user.
Then, 0 is input to Fd, and the process proceeds to step S34. on the other hand,
If it is determined in step S31 that the control mode is not in the heating control mode, steps S32 and S33 are skipped and step S3 is performed.
Proceed to 4.

In step S34, it is determined whether an object to be heated (a pan) made of a material capable of induction heating is being used.
It is detected whether or not the load abnormality detection processing for detecting whether or not a foreign substance such as an aluminum foil has entered between the glass plate 7 and the glass plate has been executed. If the load abnormality detection processing has not been executed, a known load abnormality detection processing is executed in step S35, and the process proceeds to step S36. If the load abnormality detection processing has been executed, step S35 is skipped and step S36 follows. move on.

In step S36, it is detected whether or not the object 17 to be heated has been heated to 30 ° C. or higher by the temperature sensor 15. If the temperature has been heated to 30 ° C. or higher, temperature notification processing A is executed in step S37, and
Proceeding to step S38, if it is not heated to 30 ° C. or higher, skip step S37 and proceed to step S38.

In step S38, it is detected whether or not the safety timer has counted up. If not, the process proceeds to step S39, and if it has, the process proceeds to step S41.

In step S39, it is detected whether or not 1 has been input to Fc indicating that the timer cooking mode is in progress. If the timer cooking mode is not in progress, the process returns. On the other hand, if it is in the timer cooking mode, it is detected in step S40 whether or not the cooking timer has counted up, and if not, the process returns.
If the count has been increased, the process proceeds to step S41.

Step S38 or step S40
If the timer has counted up in step S41,
After turning off the power to the induction heating coil 14, the fan is turned off in step S42. Then, step S4
After turning off the heat adjustment setting screen 11 in step S3, step S4
At 4, a notification sound is output to inform the user of the end of cooking, and the process returns.

Next, the temperature notification processing A will be described.
In the temperature notification process A, the control device 18 first starts a 30-second timer in step S50 as shown in FIG.

Next, in step S51, the detected temperature becomes 5
It is detected whether or not the temperature is 0 ° C. or higher. If the temperature is not higher than 50 ° C., that is, if the temperature is within the range of 30 ° C. to 50 ° C., the notification sound of the pattern A is notified at a cycle of 30 seconds in step S52. Proceed to S58, reset the 30 second timer and return. On the other hand, if the temperature is equal to or higher than 50 ° C., the process proceeds to step S53.

In step S53, it is detected whether or not the detected temperature is 70 ° C. or higher. If the detected temperature is not higher than 70 ° C., that is, if the detected temperature is within the range of 50 ° C. to 70 ° C.
At 54, the notification sound of pattern B is notified at a cycle of 30 seconds, and the process proceeds to step S58, where the 30-second timer is reset and the process returns. On the other hand, if the temperature is 70 ° C. or more, step S
Go to 55.

In step S55, it is detected whether or not the detected temperature is 90 ° C. or higher. If the detected temperature is not higher than 90 ° C., that is, if the detected temperature is in the range of 70 ° C. to 90 ° C., step S55 is performed.
At 56, the notification sound of the pattern C is notified at a cycle of 30 seconds, and the process proceeds to step S58, where the 30-second timer is reset and the process returns. On the other hand, if the temperature is 90 ° C. or more, step S
At 57, the notification sound of the pattern D is notified at a cycle of 30 seconds, the process proceeds to step S58, the 30-second timer is reset, and the process returns.

Next, the switch detection process will be described. When the operation of the lifting switch is detected, the control device 18 first proceeds to step S60 as shown in FIG.
Then, it is detected whether or not 1 has been input to Fa indicating that the cooking mode is in progress. If the cooking mode is in progress, the process returns from step S61 to step S66, which will be described later. On the other hand, if it is not in the cooking mode, the process proceeds to step S61.

In step S61, after the switch operation acceptance sound is notified, in step S62, 1 is input to Fb indicating that the food cooking mode is set.

Next, in step S63, the object 17 to be heated is
Is set to 180 ° C., which is the initial setting, and the temperature setting screen 12 is turned on in step S64.
Then, in step S65, after turning on a cooling fan (not shown), in step S66, the induction heating coil 14 is turned on.
And return.

Next, the cooking process of the fried food will be described. In this cooking process, the control device 18 operates as shown in FIG.
As shown at 0, first, at step S70, the safety timer is started, and then at step S71, it is detected whether or not 1 has been input to Fe indicating that the set temperature adjustment mode is being performed. If the set temperature adjustment mode is in effect, the power supply to the induction heating coil 14 is adjusted in step S72 in accordance with the temperature set by the user. In step S73, 0 is input to Fe and step S74 is performed. Proceed to. On the other hand, if the set temperature adjustment mode is not in effect at step S71, steps S72 and S73 are skipped and the process proceeds to step S74.

In step S74, as in the case of the heating and cooking process, whether or not an available object to be heated (a pot) is used is determined.
Further, it detects whether or not the load abnormality detection processing for detecting whether or not foreign matter has entered has been executed. If the load abnormality detection processing has not been executed, in step S75,
A known load abnormality detection process is executed, and the process proceeds to step S76. If the load abnormality detection process has been executed, the process proceeds to step S7.
Skip to step S76 and proceed to step S76.

In step S76, it is detected whether or not the object 17 to be heated has been heated to 30 ° C. or higher by the temperature sensor 15. If the temperature has been heated to 30 ° C. or higher, temperature notification processing B is executed in step S77, and
Proceed to 78, and if not heated to 30 ° C. or higher, skip step S77 and proceed to step S78.

In step S78, it is detected whether or not the safety timer has counted up. If the safety timer has not counted up, the process proceeds from step S79 to step S79 described later.
The routine skips 82 and returns. On the other hand, when counting up, the process proceeds to step S79.

In step S79, the induction heating coil 14
After the power supply to the fan is turned off, the fan is turned off in step S80. Then, in step S81, the temperature setting screen 12
Is turned off, in step S82, a notification sound of the end of cooking is output, and the process returns.

Next, the temperature notification processing B will be described.
In the temperature notification process B, as shown in FIG. 11, the control device 18 first starts a 30-second timer in step S90.

Next, at step S91, the detected temperature becomes 5
It is detected whether or not the temperature is 0 ° C. or higher. If the temperature is not higher than 50 ° C., that is, if the temperature is within the range of 30 ° C. to 50 ° C., the notification sound of the pattern A is notified at a cycle of 30 seconds in step S92. Proceeding to S100, reset the 30 second timer and return. On the other hand, when the temperature is equal to or higher than 50 ° C., the process proceeds to step S93.

In step S93, the detected temperature is 100 ° C.
If it is not 100 ° C or more,
That is, when the temperature is within the range of 50 ° C. to 100 ° C., in step S94, the notification sound of the pattern B is notified at a cycle of 30 seconds, the process proceeds to step S100, the 30-second timer is reset, and the process returns. On the other hand, if the temperature is 100 ° C. or higher, the process proceeds to step S95.

In step S95, it is detected whether or not the detected temperature has reached the set temperature of the user. If the detected temperature has not reached the set temperature, that is, if it is within the range of 100 ° C. to the set temperature, in step S96, The notification sound of the pattern C is notified in a cycle of 30 seconds, the process proceeds to step S100, the 30-second timer is reset, and the process returns. On the other hand, if the set temperature has been reached, the process proceeds to step S97.

In step S97, it is detected whether or not a notification sound for notifying the user that the temperature has reached the set temperature has already been issued. If not, the notification indicating that the temperature has reached the set temperature is made in step S98. Informing the sound and step S
Proceed to 100 and reset the 30 second timer and return. On the other hand, if the notification has already been made, step S99
Then, the notification sound of the pattern D is notified at a cycle of 30 seconds, the process proceeds to step S100, the 30-second timer is reset, and the process returns.

Next, the timer switch detection processing will be described. When detecting the operation of the timer switch, the control device 18 first proceeds to step S1 as shown in FIG.
In step 10, it is detected whether or not 1 is input to Fa indicating that the cooking mode is in progress. If the cooking mode is in progress, the process proceeds to step S111. If the cooking mode is not in step S111, step S111 described later is performed. To step S1
Skip 20 and return.

In step S111, a continuous detection counter for the operation of the timer switch 6 by the user is started. In step S112, it is detected whether or not the continuous operation exceeds 0.5 seconds. If the operation is being performed, the process proceeds to step S113. If the operation is not being performed, the process proceeds to step S113.
Go to 117.

In step S113, the set amount of the remaining heating time display section 11a, which is a cooking end timer, is fast-forwarded in units of 10 minutes. In step S114, the fast-forwarding is continued until the continuous operation of the timer switch 6 ends. When it is detected that the continuous operation of the timer switch 6 has been completed, in step S115, the fast-forward of the cooking end timer is ended, and the process proceeds to step S116.

On the other hand, if it is determined in step S112 that the continuous operation of the timer switch 6 has not exceeded 0.5 seconds, 10 minutes is added to the minute display of the cooking end timer in step S117, and the process proceeds to step S116. move on.

In step S116, the displayed minute display is determined as the setting of the cooking end timer, and step 10 is executed.
In step 8, 1 is input to Fc indicating the timer cooking mode. Then, in step S119, the safety timer that has already been counting is reset, and in step S120
Then, start the cooking timer and return.

Next, the upper switch detection processing will be described. Upon detecting the operation of the upper switch, the control device 18
As shown in FIG. 13, first, in step S130, a sound for accepting a switch operation is notified.

Then, in step S131, it is detected whether or not 1 is input to Fa indicating that the cooking mode is in the heating mode.
The process proceeds to 132, and if not in the heating cooking mode, the process proceeds to step S136.

After detecting the current heating power setting in step S132, it is detected in step S133 whether the current heating power setting is the maximum. If the current heating power setting is not the maximum, the heating power setting is raised by one level in step S134, and in step S135, 1 is input to Fd indicating that the mode is the heating control mode, and the routine returns. On the other hand, if the current power setting is the maximum in step S133, the process skips steps S134 and S135 and returns.

If it is determined in step S131 that the cooking mode is not in the heating cooking mode, it is detected in step S136 whether or not 1 is input to Fb indicating that the cooking mode is in the cooking mode. If there is, the process proceeds to step S137. On the other hand, if it is not in the cooking mode, the process proceeds to step S141, performs a volume setting process described later, and returns.

In step S137, after detecting the current temperature setting, in step S138, it is determined whether the current temperature setting is the maximum (200 ° C.). If the current temperature setting is not the maximum, the temperature setting is increased by one level (10 ° C.) in step S139, and in step S140, 1 is input to Fe indicating the set temperature adjustment mode, and the routine returns. On the other hand, if the current temperature setting is the maximum in step S138, the process skips steps S139 and S140 and returns.

Next, the lower switch detection processing will be described. Upon detecting the operation of the lower switch, the control device 18
As shown in FIG. 14, first, in step S150, a reception sound of a switch operation is notified.

Then, in step S151, it is detected whether or not 1 is input to Fa indicating that the cooking mode is in the heating mode.
The process proceeds to 152, and if not in the heating cooking mode, the process proceeds to step S156.

In step S152, after detecting the current heating power setting, in step S153, it is determined whether or not the current heating power setting is minimum. If the current heating power setting is not the minimum, the heating power setting is lowered by one level in step S154, and in step S155, 1 is input to Fd indicating that the mode is the heating control mode, and the process returns. On the other hand, if the current heating power setting is the minimum in step S153, the process skips steps S154 and S155 and returns.

If it is determined in step S151 that the cooking mode is not the heating cooking mode, it is detected in step S156 whether or not 1 is input to Fb indicating that the cooking mode is in the cooking mode. If there is, the process proceeds to step S157. On the other hand, if it is not in the cooking mode, the process proceeds to step S161 to perform a volume setting process described later, and then returns.

In step S157, after detecting the current temperature setting, in step S158, it is determined whether the current temperature setting is minimum (160 ° C.). If the current temperature setting is not the minimum, the temperature setting is lowered by one level (10 ° C.) in step S159, and in step S160, 1 is input to Fe indicating the set temperature adjustment mode, and the routine returns. On the other hand, if the current temperature setting is the minimum in step S158, the process skips steps S159 and S160 and returns.

Next, the volume setting process will be described. In this volume setting process, as shown in FIG. 15, the control device 18 first detects the currently set volume setting in step S170 and turns on the notification sound setting screen 13 in step S171. In step S172, an operation waiting timer is started.

Next, in step S173, if the switch that has detected the operation is the upper switch 7 of the "△" mark, the flow proceeds to step S174. If not, the flow proceeds to step S177.

In step S174, it is detected whether or not the current volume setting value is lower than the maximum value. If the current volume setting value is not the maximum level, in step S175, the volume setting level is raised to one level, and step S176 is performed. Then, the volume setting display is incremented, and the process proceeds to step S180. On the other hand, if it is determined in step S174 that the current volume setting value is at the maximum level, the above-described steps S175 and S17 are performed.
Skip to step S180 and proceed to step S180.

In step S177, it is detected whether or not the current volume setting value is at a level higher than the minimum value (silence). If not, the process proceeds to step S178.
Then, the level of the volume setting is reduced to one level, and step S17 is performed.
In step 9, the volume setting display is decremented, and the flow advances to step S180. On the other hand, if the current volume setting value is the minimum level in step S177, the process proceeds to step S17.
8, skip step S179 and proceed to step S180.

In step S180, to notify the set volume, a notification sound is notified at the set volume (no sound if set to mute), and in step S181, the operation waiting timer is reset.

Then, in step S182, it is detected by the operation waiting timer whether or not 5 seconds have elapsed since the operation was detected. If 5 seconds have elapsed, the notification sound setting screen 13 is turned off in step S183 and the routine returns. On the other hand, if 5 seconds have not elapsed, it is detected in step S184 whether the upper switch 7 or the lower switch 8 has been operated,
If any operation is detected, step S173 is performed.
If no operation is detected, the process returns to step S
Return to 182. In this state, the operation of the other switch keys 4 to 6, 9 is not accepted.

Next, the off switch detection processing will be described. Upon detecting the operation of the off switch, the control device 18
As shown in FIG. 16, first, in step S190, it is detected whether or not 1 is input to Fa indicating that the cooking mode is in the heating cooking mode. If it is not in the heating cooking mode, the process proceeds to step S191. If it is in the heating cooking mode, the process proceeds to step S192 to perform interruption processing of the heating cooking mode and return.

In step S191, it is detected whether or not 1 has been input to Fb indicating that the food is in the cooking mode. If not in the cooking mode, the process proceeds to step S193. If the mode is in the heating cooking mode, the process proceeds to step S192 to perform interruption stop processing in the cooking mode and return.

In step S193, the continuous operation detection counter of the off switch 9 is started, and in step S194
Then, the operation waits until the operation of the off switch 9 is completed.

When the end of operation of the off switch 9 is detected, the continuous operation detection counter is stopped in step S195, and it is detected in step S196 whether the operation time is 3 seconds or more. If it is 3 seconds or longer, the process proceeds to step S197 to perform a notification sound switching process and returns. On the other hand, if it is not more than 3 seconds, step S19
Skip 7 and return.

Next, the notification sound switching process will be described.
In the notification sound switching process, as shown in FIG. 17, the control device 18 first detects the current notification sound set at present in step S200, and then turns on the notification sound setting screen 13 in step S201. I do.

Then, in step S202, it is detected whether or not the current notification sound is set as a melody. If it is set as a melody, the process proceeds to step S203. If it is not set as a melody, the process proceeds to step S203. Step S207
Proceed to.

In step S203, the notification sound is set to a buzzer. In step S204, the "buzzer" of the notification sound display section 13a is blinked. In step S205, the buzzer sound is notified. Screen 1
Turn off 3 and return.

On the other hand, in step S207, the notification sound is set to the melody, and in step S208, the notification sound display unit 1
The “melody” of 3a blinks, and in step S209,
After the notification of the melody sound, in step S209, the notification sound setting screen 13 is turned off and the process returns.

As described above, in the electromagnetic cooker 1 of the present invention,
When the object 17 is heated by the induction heating coil 14, the notification sound is issued at predetermined intervals, so that even a person who is not actually cooking can easily judge that the person is using the appliance. In addition, the possibility of inadvertently touching the object to be heated (the pan) can be prevented.

[0084]

As is apparent from the above description, the induction heating cooker according to the present invention emits a notification sound when a predetermined temperature is reached. It is very convenient because it can be confirmed. In particular, since the operation is periodically performed when the temperature of the object to be heated reaches 30 ° C., even those who are not actually cooking,
It can be easily determined that the device is used, and as a result, it is possible to surely prevent the possibility of inadvertently touching the object to be heated (the pot) and causing burns.

Further, if the heating temperature of the object to be heated is divided into a plurality of ranges within a predetermined range, and a different notification sound is issued for each of the sections, the user who cooks and the person who does not cook can cook the object to be heated. Since it is possible to easily determine the temperature rising state, it is possible to reliably prevent the inconvenience of touching the very hot object to be heated, and it is very effective in the case of cooking in which ingredients are supplied at predetermined temperatures. .

Further, since a plurality of notification sounds to be output by the notification means are provided and an input means for adjusting the notification sound type and the notification volume is provided, the user can change the setting according to the use environment. It is possible to prevent the notification sound from being missed and the discomfort caused by the notification sound.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electromagnetic cooker as an example of an induction heating cooker according to the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is a plan view of an operation / display panel.

FIGS. 4A, 4B, and 4C are plan views showing screens displayed on a liquid crystal display.

FIG. 5 is a flowchart showing an operation detection mode of the electromagnetic cooker.

FIG. 6 is a flowchart showing a heating switch detection process of FIG. 5;

FIG. 7 is a flowchart showing a heating cooking process.

FIG. 8 is a flowchart showing a temperature notification process A;

FIG. 9 is a flowchart showing the switch detection processing of FIG.

FIG. 10 is a flowchart showing a cooking process of fried food.

FIG. 11 is a flowchart illustrating a temperature notification process B;

FIG. 12 is a flowchart illustrating a timer switch detection process of FIG. 5;

FIG. 13 is a flowchart showing an upper switch detection process of FIG. 5;

FIG. 14 is a flowchart illustrating a lower switch detection process of FIG. 5;

FIG. 15 is a flowchart showing a volume setting process.

FIG. 16 is a flowchart showing a disconnection switch detection process of FIG. 5;

FIG. 17 is a flowchart illustrating a notification sound setting process.

[Explanation of symbols]

1 ... electromagnetic cooker (induction heating cooker), 2 ... cooker body,
3 operation / display panel, 4 heating switch, 5 lifting switch, 6 timer switch, 7 upper switch,
8 Down switch, 9 Off switch, 10 Liquid crystal display, 1
DESCRIPTION OF SYMBOLS 1 ... Fire setting screen, 12 ... Temperature setting screen, 13 ... Notification sound setting screen, 14 ... Induction heating coil, 15 ... Temperature sensor (temperature detecting means), 16 ... Glass plate, 17 ... Heating target, 18 ... Control apparatus.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3K051 AB14 AC54 AD29 AD39 BD01 4B055 AA09 BA02 BA03 BA08 CA64 CA65 CD02 CD34 CD35 DB14 GA04 GB08 GC35 GD02 GD06

Claims (4)

[Claims] 1. An induction heating cooker comprising: an induction heating coil for induction heating an object to be heated; and a temperature detecting means for detecting a temperature of the object to be heated. An induction heating cooker provided with a notification means for outputting a notification sound when it is detected that the temperature has become low. 2. The induction heating cooker according to claim 1, wherein the notification means is operated periodically when the temperature of the object to be heated reaches a predetermined temperature or higher. 3. The guidance according to claim 1, wherein the heating temperature of the object to be heated is divided into a plurality of sections within a predetermined range, and a different notification sound is reported for each section. Cooking cooker. 4. The system according to claim 1, wherein a plurality of types of notification sounds output by the notification unit are provided, and input means for adjusting the types of notification sounds and the notification volume is provided. Item 14. The induction heating cooker according to Item 5.