JP2015144056A - electromagnetic cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an electromagnetic cooker from falling into a dangerous state because of an unintended heating operation even if a state where a cooking person is absent continues, the electromagnetic cooker being a multi-port type including an operation part using an electrostatic capacitance type touch key on a top face of a top plate for each cooking part.SOLUTION: A multi-port type electromagnetic cooker includes: cooking parts 10a and 10b in which coils 11 and 12 of electromagnetic induction heating means are disposed at a bottom face side of a top plate 10; a control part 3 for controlling operations of the cooking parts 10a and 10b; and operation parts 110 and 120 which are disposed on the top plate 10 for the unit of the cooking parts 10a and 10b. The operation parts 110 and 120 employ electrostatic capacitance type touch keys. If there is no operation in both the operation parts as long as or longer than a predetermined time after operation is performed in any one of the operation parts 110 and 120 while any one of the cooking parts 10a and 10b performs the heating operation, the control part 3 locks the operations upon the operation parts 110 and 120 so as not to receive at least a predetermined kind of input.

Description

  The present invention relates to an electromagnetic cooker that performs cooking by electromagnetic induction, and in particular, has a plurality of cooking units and an operation unit using a capacitive touch key on the top plate for each cooking unit. The present invention relates to an electromagnetic cooker having a plurality of mouths having a function of avoiding an erroneous input due to.

  In recent years, an electromagnetic cooker (IH cooker) having a plurality of cooking units that heat cooking by placing a cooking container such as a pan on the top surface of a heat-resistant glass top plate has been widely used. As for the operation part for performing various input operations, generally, capacitive touch keys are grouped for each cooking part and arranged on the front side of the top surface of the top plate.

  Thus, in an electromagnetic cooker having a plurality of cooking units, a plurality of cooking containers can be placed and heat cooking can be performed at the same time. In this case, there is a problem that the same signal as the input operation is output and an unintended heating operation is started by applying to the capacitive touch key in the operation unit of the cooking unit that is not used.

  In this case, it is common for each cooking unit to have a setting that does not execute a heating operation when a pan sensor is arranged and no cooking container is placed, but if a cooking container is accidentally placed This can lead to dangerous situations such as airing. In addition, in the case of those that do not have a blow-off detection function, if the operation unit of the cooking unit that is performing the heating operation is blown down to increase the thermal power, a further dangerous state is caused. I will.

  On the other hand, Japanese Patent Application Laid-Open No. 2003-77634 proposes an electromagnetic cooker configured to turn off the power when a key on the top plate is pressed for a predetermined time or longer. According to this electromagnetic cooker, since the power is cut off when the blow-off is applied to the operation unit and the capacitance touch key is pressed for a predetermined time or longer, the power is turned off. It is easy to avoid the situation where fire occurs or firepower is increased.

  Japanese Patent Application Laid-Open No. 2007-141541 is provided with operation determination means for determining whether or not the key pressing operation is performed by a person, and the time from pressing the capacitive touch key to releasing it is a predetermined time or more. In this case, an electromagnetic cooker has been proposed that determines that it was not operated by a person and cancels the acceptance of the key operation, thereby shifting to a more dangerous driving state due to spilling due to the absence of the cook etc. Making it easier to avoid.

  However, in the former prior art, since the power is cut off due to the key being blown down and cooking is completely interrupted, the input from 1 is set so as to match the progress of cooking when the cook returns. It takes time and effort to perform the operation. In addition, in common with the two prior arts described above, in the case of determining an erroneous operation based on the length of the key pressing time, the cooker happens to press the key for a long time or the article that the key reacts to the operation unit. If left unattended, the power supply may be cut off unexpectedly or the operation may not be accepted.

  Furthermore, in the case of a device that does not have a blow-off detection function, the heating operation cannot be stopped even if blow-off occurs in the latter prior art, and the blow-off does not occur on the touch key even in the former prior art. If it does not go into the pressed state for a predetermined time or more even if it takes, a dangerous state due to excessive heating operation will continue as it is.

Japanese Patent Laid-Open No. 2003-77634 JP 2007-141541 A

  The present invention is intended to solve the above-described problems, and a cooking device is provided for a multi-mouth electromagnetic cooker having an operation unit with a capacitance touch key on the top plate for each cooking unit. It is an object of the present invention to be able to avoid a dangerous state caused by an unintended heating operation even when a person's absence is continued.

  Accordingly, the present invention provides a plurality of cooking units in which electromagnetic induction heating means are arranged on the lower surface side of the top plate, a control unit that controls the operation of each cooking unit, and the cooking unit on the top plate. A multi-mouth electromagnetic cooker including an operation unit arranged for each of the operation units, each operation unit is based on a capacitive touch key, and the control unit is at least one of the plurality of cooking units. An operation to the operation unit so that at least a predetermined type of input is not accepted when any of the operation units has been operated for any period of time or more during any heating operation. It is characterized by applying a lock to

  In other words, in a multi-mouth electromagnetic cooker that has an operation unit with a capacitive touch key on the top plate, it can be used because it is blown down by the absence of a cook during heating operation and applied to the operation unit. There was a problem of starting the heating operation in the cooking section that was not done or increasing the thermal power in the cooking section during operation, but no operation for more than a predetermined time after operating in any of the operation parts in this way When the state continues, the control to lock the operation to the operation unit is performed, so even in the situation where the cook is absent until the point at which the blown down occurs, the unintentional cause due to the blown down is not intended. It becomes possible to avoid falling into a dangerous state by overheating operation.

  Further, in this electromagnetic cooker, if the object to be locked is a start of a new heating operation or / and an input operation in the direction of increasing the heating power, Since it can prevent only those that may fall into a dangerous state, if the input is less harmful, such as a decrease in thermal power or shutdown, it will take time to perform the unlocking operation when the cook returns after locking In addition, cooking can be continued or a recovery operation can be performed in the operating cooking unit.

  Further, in the above-described electromagnetic cooker, the non-operation time for applying the lock is determined according to the strength of the thermal power at the start of the measurement, and the time is set shorter as the thermal power is stronger. In this way, it is possible to avoid unexpected locking during cooking in cooking assuming a long heating operation with a weak heating power, and in the cooking assuming a short heating operation with a strong heating power, It becomes easy to avoid erroneous input due to spilling.

  Furthermore, in the above-described electromagnetic cooker, the control unit may reduce or stop the heating operation when a predetermined time elapses from the locked time when the lock is applied. Even if the situation where the cook is absent continues after being locked, it is possible to avoid the occurrence of spilling in the cooking unit during operation or to calm down the generated spilling automatically.

  In addition, in the above-described electromagnetic cooker, the control unit reduces or stops the heating operation when there is an invalid operation that does not accept an input in any of the operation units after the lock. If it is assumed, even if the situation of the absence of the cooker continues after blowing down, it becomes easy to avoid further blowing down and subsequent airing.

  In addition, in the above-described electromagnetic cooker, the control unit causes a predetermined warning unit to output a warning when there is an invalid operation that does not accept an input at any of the operation units after the lock or after the lock. If it is made into the characteristic, it will become possible to make it aware that it is a dangerous situation to the cook who was absent, and to take a response means quickly.

  According to the present invention, the operation unit is locked when there is no operation for a predetermined time after an operation is performed in any of the operation units. It is possible to reliably avoid falling into a dangerous state by heating operation that is not performed.

It is a top view of the electromagnetic cooker which is embodiment in this invention. It is a functional block diagram regarding the heating operation of the electromagnetic cooking device of FIG. (A), (B), (C) is an example of the warning display by the display window of the electromagnetic cooking device of FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present invention, the heating operation includes not only a normal heating mode operation but also a fried food mode operation with a relatively strong thermal power, and a low fire power and warming mode operation.

  FIG. 1 is a plan view of the electromagnetic cooker 1 according to the present embodiment as viewed from above the top plate 10. In the following description, the electromagnetic cooker 1 is a thin and lightweight desktop type. A case will be described. Such an electromagnetic cooker 1 is a multi-mouth type in which two cooking parts 10a and 10b are arranged side by side, and a top plate made of heat-resistant glass is provided on the upper surface side of the casing 2 constituting the main body. 10 is disposed, and heating units 11 and 12 using coils are provided on the back side thereof, and cooking portions 10a and 10b are formed by the portions displayed in a circle on the upper surface of the top plate 10 above these.

  On the front side of the cooking units 10a and 10b arranged side by side on the top plate 10, operation units 110 and 120 for performing operations on the cooking units are arranged. The operation units 110 and 120 include heating keys 111 and 121 for ON / OFF operation in a heating mode for performing a heating operation, and a fried food key 113 for ON / OFF operation in a frying mode for performing a heating operation for frying. , 123, raising / lowering keys 115, 125 for adjusting the heating power and set time, stop keys 112, 122 for performing stop operations such as operation, and timer keys 119, 129 for timer setting operations. These are all composed of capacitive touch keys.

  In addition, the operation units 110 and 120 are provided with thermal lamps 116 and 126 that display the level of the heating thermal power step by step, and display windows 117 and 127 that display various codes and characters, respectively, and the operation state at that time Is displayed, and an output monitor 6 for displaying the power consumption of the entire apparatus is disposed between them. Furthermore, the front surface of the electromagnetic cooker 1 has a narrow shape in the vertical direction, and a mechanical power switch 5 is disposed at the center thereof, and the power supply on the top plate 10 when the power is on. The lamp 51 is turned on.

  FIG. 2 shows a functional block diagram related to the heating operation in the electromagnetic cooking device 1. The operation of the heating means 11 and 12 is controlled by the control unit 3 including an electronic control unit having a predetermined control program. The control unit 3 includes the operation units 110 and 120 described above. Each of them is connected, and an operation signal based on these is input.

  Such a control unit 3 includes a control unit 30 that executes control contents for electromagnetic cooking, a detection unit 31 for detecting that a predetermined operation has been performed in the operation units 110 and 120, a timer cooking time or a detection unit 31. The time measuring means 32 for measuring the time from the detection time to the predetermined time point is provided, and the control method which is a characteristic part of the present invention is executed by these.

  That is, in the present invention, in addition to the control unit 3 performing normal control in electromagnetic cooking, any one of the cooking units 10a and 10b or both of the operating units 110 and 120 during the heating operation. When there is no operation in any operation unit for a predetermined time or more after the operation, the input operation to the operation units 110 and 120 is not accepted so that the start of a new heating operation and the input of the heating power increase direction are not accepted. On the other hand, the control for locking is executed, and it is characterized in that it is possible to avoid falling into a dangerous driving state due to the fact that the blow-off is applied to the operation unit.

  Specifically, the control unit 3 detects that an operation has been performed in any of the operation units 110 and 120 by the detection unit 31 and starts measurement by the time measuring unit 32 simultaneously with the detection. Then, if it is detected that there has been an operation at any of the operation units 110 and 120 before the predetermined time has elapsed, the measurement is restarted from the beginning, and the predetermined time has passed without any operation since the measurement was started. If, at that time, any of the cooking units is cooking with heat, both the operation units 110 and 120 are locked.

  Thereby, for example, in the situation where the heating operation is performed in one cooking unit 10a, the lock is automatically applied when the possibility of the absence of the cooker becomes high, and thereafter the electrostatic operation of the operation units 110 and 120 is performed. Even when the capacitive touch switch is blown down, it is possible to avoid a dangerous state due to a heating operation not intended by the cook, such as the start of a new heating operation in the cooking unit 10b or the increase of the thermal power in the cooking unit 10a. It becomes like this.

  The non-operation time for applying the lock may be set assuming a time when the possibility of the absence of the cooker increases and the possibility of the occurrence of spilling increases thereafter. In addition to being fixed in advance, as a method of changing according to the strength of the heating power at the start of measurement, the time may be shortened as the heating power is stronger.

  For example, if the firepower level can be set to 7 levels, 120 minutes for firepower 1, 60 minutes for firepower 2, 30 minutes for firepower 3, 15 minutes for firepower 4, 10 minutes for firepower 5, 6 minutes for firepower 6, 6 firepower By setting the time in steps, such as 4 minutes, it is possible to avoid unexpected locks during cooking in cases where heating is performed for a long time with a weak heating power, such as heat insulation and hot fire cooking, and strong heating power In cooking assuming a short heating operation, it is easy to avoid the occurrence of erroneous input due to spilling in a short time. In addition, even in a situation where a pot dish is eaten while heating the pot, it is possible to avoid a situation where the lock is repeatedly applied during cooking.

  Hereinafter, functional features in the present embodiment will be specifically described with reference to FIGS. 1 to 3. With reference to FIG. 1, for example, when cooking a pot in the cooking unit 10 a, the power lamp 51 is turned on by pressing and holding the power switch 5 after placing a pot containing water or a cooking object on the cooking unit 10 a, Thereafter, the heating operation can be started by pressing the heating key 111, and cooking is performed while adjusting the heating power using the raising / lowering key 115.

  And although each time is measured from each operation time in the operation part 110, the time of no operation will continue by becoming a state without a cook. In this case, the control unit 3 measures, for example, 5 minutes after the last operation (operation of the raising / lowering key 115), thereby operating the heating keys 111, 121 in the operation units 110, 120 and the fried food keys 113, 123. The operation and the raising / lowering keys 115 and 125 are set in a locked state in which no input is accepted for the operation in the heating power increasing direction.

  Then, for example, even if the blow-off occurs 3 minutes after the lock and the above-described keys are applied, the start of a new heating operation or the input of the heating power increase of the heating operation is not performed. When the cook returns to the front of the electromagnetic cooker 1 after locking, the locked state is released by pressing the stop key 112, but the heating power is reduced by the raising / lowering key 115 without releasing the lock. Since the operation of the direction operation is accepted, it is possible to immediately reduce the excessive heating power and stabilize the cooking state, and the cooking can be continued as it is.

  In order to avoid the inconvenience that the cook operates without noticing the locked state when returning to the front of the electromagnetic cooker 1, the operation is performed in the display window 117 (as well as 127) as illustrated in FIG. It is preferable that a visual warning is output to the cook by lighting or blinking a letter or number that means that the portion is in a locked state.

  In addition, in the event that there is an invalid operation that does not accept input due to spilling after locking as described above, in addition to a warning by visual display by the display windows 117 and 127, an alarm sound is output and an electromagnetic cooker If it is set as the structure which alert | reports generation | occurrence | production of blowing down to the cook who is in the position away from 1, it will become easy to prevent the further expansion of blowing down.

  On the other hand, as described above, it is not possible to avoid the spilling that occurs after the predetermined time has elapsed since the last operation. Therefore, in the present embodiment, the time is measured by the time measuring means 32 from the time when the lock is applied, and the heating power of the heating operation is reduced to a predetermined level when a predetermined time has elapsed from the start of the measurement. When a predetermined time elapses after the time is measured, control for stopping the heating operation is executed. It should be noted that the time from the time of locking to the reduction of the thermal power may be determined according to the strength of the thermal power at that time in addition to being fixed in advance, similarly to the above-mentioned no-operation time for applying the lock. The same applies to the time to stop.

  By performing such control, if the cook does not return even after locking, this can be avoided before the blow-off occurs, or even if the blow-off occurs, this is minimized. If the cook does not return afterwards, the heating operation can be automatically terminated, ensuring that the cooking operation that is not intended by the cook is not dangerous. can do.

  In addition, when there is an invalid operation that does not accept input in any of the cooking units after locking, it means that the cooking unit that is performing the heating operation has blown down. By detecting, it is preferable that the control for reducing or stopping the heating power of the heating operation is performed in the same manner as described above from the viewpoint of converging the state of blown-down in a short time.

  As described above, with respect to the multi-mouth electromagnetic cooker having the operation unit by the capacitive touch key on the top surface of the top plate for each cooking unit, the absence of the cooker is continued according to the present invention. Even in this case, it is possible to avoid a dangerous state due to unintended heating operation.

  DESCRIPTION OF SYMBOLS 1 Electromagnetic cooker, 3 Control part, 10 Top plate, 10a, 10b Cooking part, 11,12 Heating means, 30 Control means, 31 Detection means, 32 Time measuring means, 110,120 Operation part, 111,121 Heating key, 112 , 122 Stop key, 113, 123 Fried food key, 115, 125 Raising / lowering key, 119, 129 Timer key

Claims (6)

  A plurality of cooking units in which electromagnetic induction heating means are arranged on the lower surface side of the top plate, a control unit for controlling the operation of each cooking unit, and each cooking unit on the top plate In the multi-mouth electromagnetic cooker including an operation unit, each operation unit is based on a capacitive touch key, and the control unit is in a heating operation of at least one of the plurality of cooking units. In addition, when there is no operation at any of the operation units for a predetermined time or more after an operation at any of the operation units, at least a predetermined type of input is not received and the operation unit is locked against the operation. An electromagnetic cooker characterized by applying   The electromagnetic cooker according to claim 1, wherein the object to be locked is a start of a new heating operation or / and an input operation in a heating power increasing direction.   The non-operation time for applying the lock is determined according to the strength of the heating power at the start of the measurement, and the time is set shorter as the heating power is stronger. Electromagnetic cooker.   4. The electromagnetic cooking according to claim 1, wherein the controller is configured to reduce or stop the heating operation when a predetermined time elapses after the lock when the lock is applied. vessel.   The control unit, when there is an invalid operation that does not accept an input in any of the operation unit after the lock, the heating operation is reduced or stopped, the heating operation, characterized in that The electromagnetic cooker described in 4.   The control unit causes a predetermined warning unit to output a warning when there is an invalid operation that does not accept an input at any of the operation units after the lock or after the lock. , 2, 3, 4 or 5.

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