JP7316147B2 - thawing cooking device - Google Patents

Description

The present disclosure relates to thawing cooking devices.

Patent Literature 1 discloses a thawing cooking device. This thawing cooking apparatus includes a thawing cooking chamber, a heat transfer plate accommodated in the thawing cooking chamber, an upper burner for heating the frozen food placed on the heat transfer plate from above, and a heat transfer plate for heating from below. and a control section for controlling the upper burner and the lower burner. The control unit executes a heating cooking operation for thawing and cooking the frozen food by burning the upper burner and the lower burner.

JP 2017-209148 A

In the thawing cooking apparatus described above, if the frozen food is heated by the upper burner and the lower burner for a long time during thawing of the frozen food, there is a concern that the surface of the frozen food may be scorched.

The present disclosure has been made in view of the above reasons, and an object thereof is to provide a thawing cooking device capable of suppressing excessive heating of frozen food and quickly thawing frozen food.

A thawing cooking apparatus according to an aspect of the present disclosure includes a heating chamber, a heating unit that heats an object to be heated including a cooking container housed in the heating chamber and a frozen food placed in the cooking container, and the heating unit. and a control unit for controlling the The heating unit has an upper burner that heats the object to be heated from above and a lower burner that heats the object to be heated from below. The control unit controls the heating unit to perform a thawing operation for heating the object to be heated. In the thawing operation, the control unit performs a first heating step of continuously heating the object to be heated with both the upper burner and the lower burner for a first predetermined time, and after the first heating step, the A second heating step of continuously heating the object to be heated with only the upper burner or the lower burner for a second predetermined time, or after the first heating step, the upper burner and the lower burner are operated for the second predetermined time. a second fire extinguishing step of extinguishing the fire continuously for a time; and a third heating step of heating the object to be heated with both the upper burner and the lower burner after the second heating step or the second extinguishing step. Execute.

The thawing cooking apparatus according to the aspect can prevent the frozen food from being heated more than necessary and can quickly thaw the frozen food.

1 is a perspective view of a thawing and cooking device according to one embodiment of the present disclosure; FIG. FIG. 2 is a perspective view of a heating chamber included in the defrosting cooking apparatus. FIG. 3 is a sectional view of the same heating chamber. FIG. 4 is a perspective view showing a cross section of a part of the same heating chamber. FIG. 5 is an explanatory diagram showing a gas supply path of the thawing cooking apparatus of the same. FIG. 6 is a block diagram of the thawing cooking device same as the above. FIG. 7 is a graph showing changes over time in the temperature detected by the temperature detection unit, the thermal power of the upper burner, and the thermal power of the lower burner when the first defrosting operation is performed by the same defrosting cooking apparatus. is. FIG. 8 is a graph showing changes over time in the temperature detected by the temperature detection unit, the thermal power of the upper burner, and the thermal power of the lower burner when the second defrosting operation is performed by the same defrosting cooking apparatus. is. FIG. 9 is a graph showing changes over time in the temperature detected by the temperature detection unit, the thermal power of the upper burner, and the thermal power of the lower burner when the third defrosting operation is performed by the same defrosting cooking apparatus. is. FIG. 10 is a flow chart showing control of the first thawing operation same as above. FIG. 11 is a flow chart showing control of the second defrosting operation of the same. FIG. 12 is a flow chart showing control of the third thawing operation same as above.

(1) Embodiment A thawing cooking apparatus 1 of this embodiment shown in FIG. 1 is a gas stove with a grill, and is installed by being inserted from above into a hole formed in a kitchen counter (not shown). It is a drop-in hob. Hereinafter, the thawing cooking device 1 will be described using the directions in which the thawing cooking device 1 is installed. Specifically, as viewed from the thawing cooking apparatus 1, the direction in which the user is positioned is defined as the front in terms of design. Moreover, the left-right direction is defined with reference to the time when the thawing cooking apparatus 1 is viewed from the front.

The thawing cooking device 1 includes a casing 10 , a plurality of stove burners 11 and a top plate 12 . The casing 10 is formed in a box shape that is open upward. A plurality of stove burners 11 are installed inside the casing 10 . A top plate 12 is installed on the casing 10 . A top plate 12 covers the upper surface of the casing 10 . Each of the plurality of stove burners 11 passes through a hole formed in the top plate 12 and protrudes above the top plate 12 .

The thawing cooking device 1 further includes a plurality of stove operating units 13 . The plurality of stove operating portions 13 correspond to the plurality of stove burners 11 one-to-one. By operating each stove operation unit 13, the user can switch between ignition and extinguishing of the corresponding stove burner 11 and issue a command to change the heating power.

The thawing cooking device 1 further includes a heating chamber 2. - 特許庁The heating chamber 2 is surrounded by a casing 10 and a top plate 12. - 特許庁The heating chamber 2 is a grill chamber, and is used to perform grill cooking by heating an object to be cooked or a cooking container 4 (see FIG. 2) in which the object to be cooked is arranged with fire.

In the thawing cooking device 1 of this embodiment, thawing cooking is performed using the heating chamber 2 . “Thawed cooking” in the present disclosure means heating frozen food to defrost it. The frozen food to be thawed and cooked is, for example, a frozen food to be eaten after heating that can be eaten after thawing, and more specifically, a frozen food to be eaten after heating in which the frozen food is heated immediately before freezing. Frozen food to be thawed and cooked is not limited to frozen food to be consumed after heating, which is heated immediately before freezing. For example, the frozen food may be a frozen food to be served after heating that is not heated before freezing. In addition, the frozen food may be frozen fresh fish and shellfish for raw consumption such as fillets or shelled fish, or frozen fresh fish and shellfish for sliced or peeled fish other than for raw consumption.

As shown in FIG. 2, the heating chamber 2 is formed in the shape of a box that opens forward. The heating chamber 2 has a bottom portion 20 , left and right side walls 21 and 22 , a rear wall 23 and a ceiling portion 24 . An opening 25 is formed in the front surface of the heating chamber 2 . A heating space 26 surrounded by a bottom portion 20 , left and right side walls 21 and 22 , a rear wall 23 and a ceiling portion 24 is formed inside the heating chamber 2 . A heating space 26 in the heating chamber 2 opens forwardly of the casing 10 (see FIG. 1) through the opening 25 .

The thawing cooking apparatus 1 further has a door 14 (see FIG. 1) for opening and closing the opening 25 and a support mechanism 15 for supporting the door 14 . The support mechanism 15 is installed in the heating chamber 2 and supports the door 14 so as to be movable in the front-rear direction. The support mechanism 15 is composed of, for example, a pair of left and right slide rails. The user can open and close the opening 25 of the heating chamber 2 with the door 14 by moving the door 14 forward and backward.

The thawing cooking device 1 further includes a cooking container 4 . The cooking container 4 is formed in a shape of a shallow-bottomed container that opens upward. The cooking container 4 is made of metal, such as an aluminum alloy.

The thawing cooking device 1 of this embodiment further includes a lid 41 that can be attached to the cooking container 4 . The lid 41 closes the opening formed at the upper end of the cooking container 4 while attached to the cooking container 4 . Note that the lid 41 is used when grilling is performed, and is not used when defrosting cooking, which will be described later, is performed. That is, in the thawing cooking, which will be described later, the lid 41 is removed and the cooking container 4 with an open upper surface is used.

The thawing cooking device 1 further includes a support frame 16 that supports the cooking container 4 . The support frame 16 is made of, for example, a metal wire. The cooking container 4 is detachably attached to the support frame 16 and supported by the support frame 16 .

The support frame 16 is detachably connected to the door 14 . In a state where the cooking container 4 is supported by the support frame 16 and the support frame 16 is connected to the door 14, when the door 14 moves forward and backward, the support frame 16 and the cooking container 4 interlock with the door 14. to move forward or backward. Therefore, the user can put the cooking container 4 in and out of the heating chamber 2 by moving the door 14 in the front-rear direction with respect to the heating chamber 2 .

The thawing cooking device 1 further has a heating section 3 . The heating unit 3 heats the object to be heated housed in the heating chamber 2 . When performing grill cooking, the object to be heated is composed of the cooking container 4 and the food placed in the cooking container 4 . When thawing and cooking, the object to be heated is composed of the cooking container 4 and the frozen food placed in the cooking container 4 .

As shown in FIGS. 3 and 4 , the heating section 3 has an upper burner 30 and a lower burner 31 . The upper burner 30 heats the object to be heated from above. The lower burner 31 heats the object to be heated from below. Each of the upper burner 30 and the lower burner 31 is, for example, a Bunsen burner.

The upper burner 30 is installed on the ceiling 24 of the heating chamber 2 and positioned at the upper end of the heating chamber 2 . The upper burner 30 is positioned above the object to be heated arranged in the heating chamber 2 and heats the object to be heated from above. When the cooking container 4 is used without the lid 41 attached, the contents (cooked food or frozen food) placed in the cooking container 4 are heated from above by radiation from the flame generated by the upper burner 30 .

The lower burner 31 is installed on the bottom 20 of the heating chamber 2 and positioned at the lower end of the heating chamber 2 . The lower burner 31 is positioned below the object to be heated arranged in the heating chamber 2 and heats the object to be heated from below. The lower burner 31 of this embodiment is positioned below the central portion of the bottom 42 of the cooking vessel 4 when the cooking vessel 4 is placed at a predetermined position in the heating chamber 2 . The flame generated by the lower burner 31 hits the center of the bottom 42 of the cooking vessel 4 . In this case, the contents (cooked food or frozen food) of the cooking vessel 4 are heated by transferring the heat of the cooking vessel 4 heated by the lower burner 31 .

The heating section 3 further has a gas supply path 32 shown in FIG. The gas supply path 32 supplies fuel gas such as city gas to the upper burner 30 and the lower burner 31 . The gas supply channel 32 has a main channel 320 and a pair of sub-channels 321 and 322 branched from the main channel 320 . Fuel gas is supplied to the main flow path 320 . One of the pair of sub-channels 321 and 322 is an upper burner channel 321 leading to the upper burner 30 and the other is a lower burner channel 322 leading to the lower burner 31 .

The heating unit 3 further has a thermal power changing unit 33 that changes the amount of heating of the heating unit 3 per unit time. The heating amount per unit time of the heating unit 3 in the present disclosure is the amount of heat per unit time given from the upper burner 30 and the lower burner 31 to the object to be heated.

The heating power changing unit 33 changes the heating power of the heating unit 3 by changing the heating power of the upper burner 30 and the heating power of the lower burner 31 . The thermal power changing section 33 has an on-off valve 330 , an upper burner spark plug 331 , a lower burner spark plug 332 , an upper burner thermal power adjusting section 333 and a lower burner thermal power adjusting section 334 .

The upper burner 30 is provided with an upper burner ignition plug 331 for igniting the upper burner 30 . A lower burner ignition plug 332 for igniting the lower burner 31 is installed in the lower burner 31 .

The on-off valve 330 is provided in the main flow path 320 . The on-off valve 330 is, for example, an electromagnetic valve. By opening and closing the on-off valve 330, the presence or absence of supply of the fuel gas from the main channel 320 to the pair of sub-channels 321 and 322 is switched.

With the on-off valve 330 open and the fuel gas being supplied from the gas supply passage 32 to the upper burner 30 , the upper burner 30 is ignited by the actuation of the upper burner spark plug 331 and the generation of spark. With the on-off valve 330 open and fuel gas being supplied from the gas supply passage 32 to the lower burner 31, the lower burner ignition plug 332 is actuated to generate a spark, thereby igniting the lower burner 31. When the on-off valve 330 is closed, each of the upper burner 30 and the lower burner 31 is extinguished.

The upper burner thermal power adjustment unit 333 adjusts the thermal power of the upper burner 30 in the ignition state, and the lower burner thermal power adjustment unit 334 adjusts the thermal power of the lower burner 31 in the ignition state. The upper burner thermal power adjustment unit 333 of the present embodiment has an on-off valve 333 a and an on-off valve 333 b provided in the upper burner flow path 321 . Each of the on-off valve 333a and the on-off valve 333b is, for example, an electromagnetic valve. The on-off valve 333b is provided downstream of the on-off valve 333a in the upper burner flow path 321 .

The gas supply line 32 further has a bypass line 323 . The bypass 323 connects a portion downstream of the on-off valve 333a and upstream of the on-off valve 333b in the upper burner flow path 321 and a portion downstream of the on-off valve 333b. At least part of the bypass 323 is a channel 324 having a smaller cross-sectional area than the upper burner channel 321 .

The heating power of the upper burner 30 is adjusted by opening and closing the on-off valve 333a and the on-off valve 333b. When each of the on-off valve 330, the on-off valve 333a, and the on-off valve 333b is open, the fuel gas supplied from the main flow path 320 to the upper burner flow path 321 passes through both the on-off valve 333b and the flow path 324. and supplied to the upper burner 30. In this case, the heating power of the upper burner 30 is high, that is, "strong". When the on-off valve 330 and the on-off valve 333a are open and the on-off valve 333b is closed, the fuel gas supplied from the main flow path 320 to the upper burner flow path 321 flows through the on-off valve 333b and the flow path 324. It is fed to the upper burner 30 only through passage 324 . In this case, the flow rate of the fuel gas supplied to the upper burner 30 is smaller than when the on-off valve 333b is open. Therefore, the heating power of the upper burner 30 is low, that is, "weak". When the on-off valve 330 is closed and the on-off valve 333a is closed, no fuel gas is supplied to the upper burner 30, and the upper burner 30 is extinguished. It becomes "cut".

The lower burner thermal power adjustment unit 334 of the present embodiment has an on-off valve 334 a provided in the lower burner flow path 322 . The on-off valve 334a is, for example, an electromagnetic valve. The gas supply line 32 further has a bypass line 325 . The bypass passage 325 connects a portion upstream of the on-off valve 334a and a portion downstream of the on-off valve 334a in the lower burner flow path 322 . At least part of the bypass channel 325 is a channel 326 having a channel cross-sectional area smaller than that of the lower burner channel 322 .

The heating power of the lower burner 31 is adjusted by opening and closing the on-off valve 334a. When the on-off valve 330 and the on-off valve 334a are open, the fuel gas supplied from the main flow path 320 to the lower burner flow path 322 passes through both the on-off valve 334a and the flow path 326 and is supplied to the lower burner 31. be done. In this case, the heating power of the lower burner 31 becomes "strong". When the on-off valve 330 is open and the on-off valve 334a is closed, the fuel gas supplied from the main flow path 320 to the lower burner flow path 322 flows only through the on-off valve 334a and the flow path 326 out of the flow paths 326. It passes through and is supplied to the lower burner 31 . In this case, the flow rate of the fuel gas supplied to the lower burner 31 is smaller than when the on-off valve 334a is open. Therefore, the heating power of the lower burner 31 becomes "weak". When the on-off valve 330 is closed, fuel gas is not supplied to the lower burner 31, and the lower burner 30 is extinguished.

The thawing cooking apparatus 1 further includes a grill operation section 5 shown in FIG. 1 as an operation section operated by the user. The grill operation portion 5 is provided on the front surface of the casing 10 . The user can set the automatic cooking operation by operating the grill operation section 5 . In addition, when the automatic cooking operation is set, the object to be heated is placed in the heating chamber 2, and the door 14 is closed, the user operates the grill operation unit 5 to start the automatic cooking operation. Automatic cooking operation can be executed by issuing a command.

A cooking menu is set in the automatic cooking operation setting. The setting of this cooking menu is set by the user according to the type of ingredients such as fish, chicken, bread, etc., the condition of the ingredients such as fillets and grilled whole, cooking method, heat level, operating time, etc. It is set by selecting an arbitrary cooking menu from among a plurality of cooking menus.

The thawing cooking device 1 further includes a temperature detection section 27 shown in FIG. Temperature detector 27 detects the temperature of cooking vessel 4 placed in heating chamber 2 . The temperature detection part 27 of this embodiment is a temperature sensor installed in the lower burner 31 . When the cooking container 4 is placed at a predetermined position inside the heating chamber 2 , the temperature detection part 27 contacts the central portion of the lower surface of the bottom 42 of the cooking container 4 . Thereby, the temperature of the bottom portion 42 of the cooking vessel 4 can be detected by the temperature detection portion 27 .

The thawing cooking device 1 further includes a notification unit 17 shown in FIG. The notification unit 17 notifies the end of the automatic cooking operation. The notification unit 17 is, for example, a sounding device such as a buzzer or a speaker, a display device for displaying characters or patterns, an electric light, or a combination of these.

The thawing cooking device 1 further includes a control section 60 . The control unit 60 is composed of, for example, a microcomputer. The controller 60 is electrically connected to the thermal power changer 33 . Specifically, the control unit 60 controls the opening/closing valve 330, the upper burner ignition plug 331, the upper burner thermal power adjustment unit 333 (open/close valves 333a and 333b), the lower burner ignition plug 332, and the lower burner thermal power adjustment unit 334 (open/close valves). It is electrically connected to the valve 334a). The control unit 60 is also electrically connected to the stove operation unit 13 , the grill operation unit 5 and the temperature detection unit 27 .

The control unit 60 starts the automatic cooking operation on condition that the user sets the automatic cooking operation and issues a command to start the automatic cooking operation. In the automatic cooking operation, the control unit 60 controls the thermal power changing unit 33 based on the set cooking menu and the detection result of the temperature detection unit 27 to heat the object placed in the heating chamber 2 by the heating unit 3. heat up.

The plurality of cooking menus that can be set by operating the grill operation unit 5 include a grill cooking menu for grill cooking and a defrosting cooking menu for defrosting cooking. The control unit 60 executes the following thawing operation in response to an instruction to start the automatic cooking operation with the thawing cooking menu set. In the thawing operation of the present embodiment, the frozen food is heated even after thawing, and the frozen food is heated to a temperature higher than the normal temperature at which it can be taken immediately after the thawing operation. good too.

When the thawing operation is performed, the user sets the heat level and the operation time of the thawing operation by operating the grill operation unit 5 in the setting of the automatic cooking operation described above. In this embodiment, one heat level selected from among "medium", "strong" and "weak" is set as the heat level for defrosting operation. Also, as the operation time for the thawing operation, one operation time selected from the operation times set in units of minutes such as 1 minute, 2 minutes, . . . , 19 minutes and 20 minutes is set. These heating levels and operating times are set by the user, for example, according to the type and amount of frozen food and the desired amount of heating, etc., based on the content described in the instruction manual or the like.

The thawing operation of this embodiment includes three types of thawing operations, ie, a first thawing operation, a second thawing operation, and a third thawing operation. The control unit 60 executes any one of the first defrosting operation, the second defrosting operation and the third defrosting operation based on the heat level set by operating the grill operating unit 5 .

The first thawing operation is a thawing operation that is performed when the heat level is set to "medium". The first thawing operation is suitable for thawing frozen foods such as fried chicken, okonomiyaki, takoyaki, grilled rice balls, or taiyaki. The second thawing operation is a thawing operation that is performed when the heat level is set to "strong". The second thawing operation is, for example, an operation suitable for thawing frozen foods such as pan-fried dumplings. The third thawing operation is a thawing operation that is performed when the heat level is set to "weak". The third thawing operation is suitable for thawing frozen foods such as fried rice, pizza or croquettes.

In each of the first thawing operation, the second thawing operation, and the third thawing operation, the control unit 60 continues to control the heating unit 3 for the operation time (cooking time) set by operating the grill operation unit 5. . The control of the heating unit 3 is performed based on the temperature detected by the temperature detection unit 27 and the time measured by the timer included in the control unit 60 . Note that the timer is a function realized by the control unit 60, but may be a tangible configuration.

FIG. 7 is a graph showing changes over time in the temperature t detected by the temperature detector 27 and the thermal power of the upper burner 30 and the thermal power of the lower burner 31 when the first thawing operation is performed. FIG. 8 is a graph showing changes over time in the temperature t detected by the temperature detector 27 and the thermal power of the upper burner 30 and the thermal power of the lower burner 31 when the second thawing operation is performed. FIG. 9 is a graph showing changes over time in the temperature t detected by the temperature detector 27, the thermal power of the upper burner 30, and the thermal power of the lower burner 31 when the third thawing operation is performed.

First, the first thawing operation that is performed when the heat level is set to "medium" will be described. As shown in FIG. 7, the first thawing operation includes four heating steps: a first heating step, a second heating step, a third heating step, and a preheating step (fourth heating step). In the first thawing operation, the first heating process, the second heating process, the third heating process, and the preheating process are performed in this order. The first thawing operation of this embodiment consists of only the first heating process, the second heating process, the third heating process, and the preheating process.

The first heating step is the first step performed in the first thawing operation. The control unit 60 keeps each of the upper burner 30 and the lower burner 31 ignited during the first heating step. Further, in the first heating step, the control unit 60 maintains the heating power of the upper burner 30 at "low" and sets the heating power of the lower burner 31 to "high" based on the detection result of the temperature detection unit 27. Switch to "weak".

A 2nd heating process is a process performed following a 1st heating process. During the second heating step, the control unit 60 always keeps the upper burner 30 in the extinguished state (fire power is "off") and always keeps the lower burner 31 in the ignited state. Also, in the second heating step, the control unit 60 switches the heating power of the lower burner 31 between “high” and “low” based on the detection result of the temperature detection unit 27 .

A 3rd heating process is a process performed following a 2nd heating process. The control unit 60 keeps each of the upper burner 30 and the lower burner 31 ignited during the third heating step. In addition, in the third heating step, the control unit 60 maintains the heating power of the upper burner 30 at "low" and sets the heating power of the lower burner 31 to "high" based on the detection result of the temperature detection unit 27. Switch to "weak".

A preheating process is a process performed following a 3rd heating process. During the preheating process, the control unit 60 puts both the upper burner 30 and the lower burner 31 into a fire-extinguishing state (fire power is turned off). In the preheating step, the object to be heated is heated by the preheat of the cooking vessel 4 . By performing such a preheating step, the difference between the surface temperature and the internal temperature of the frozen food becomes smaller.

The control unit 60 performs notification by the notification unit 17 when the preheating process is completed. As a result, the user can recognize that the thawing operation has ended by the sound emitted from the notification unit 17 or the like.

The control unit 60 sets a first predetermined time T1, a second predetermined time T2, a third predetermined time T3, and a fourth predetermined time T4 when executing the first defrosting operation. The first predetermined time T1 is the scheduled execution time of the first heating process, and the second predetermined time T2 is the scheduled execution time of the second heating process. The third predetermined time T3 is the scheduled execution time of the third heating process, and the fourth predetermined time T4 is the scheduled execution time of the preheating process.

The first predetermined time T1, the second predetermined time T2, the third predetermined time T3, and the fourth predetermined time T4 are set according to the operation time set by operating the grill operation unit 5 and the time at which the first defrosting operation is started. This is performed based on the initial temperature t0 of the heating chamber 2 detected by the temperature detection unit 27 .

Specifically, the controller 60 stores a plurality of data tables corresponding to the initial temperature t0. Each data table is a table in which each of a first predetermined time T1, a second predetermined time T2, a third predetermined time T3, and a fourth predetermined time T4 is defined for each operating time, and is set based on experimental results. . In the data table corresponding to the initial temperature t0, the control unit 60 sets the first predetermined time T1, the second predetermined time T2, the third predetermined time T3, and the fourth predetermined time T4 corresponding to the set operation time to the The scheduled execution time of the first heating process, the scheduled execution time of the second heating process, the scheduled execution time of the third heating process, and the scheduled execution time of the preheating process are set.

The control unit 60 of this embodiment executes only the first heating process, the second heating process, the third heating process, and the preheating process in the first thawing operation. Therefore, the total time obtained by adding the first predetermined time T1, the second predetermined time T2, the third predetermined time T3, and the fourth predetermined time T4 is the same as the operating time set by operating the grill operation unit 5. be.

As described above, in the first thawing operation of this embodiment, the object to be heated is heated by both the upper burner 30 and the lower burner 31 in each of the first heating process and the third heating process. Then, in the second heating process performed between the first heating process and the third heating process, the object to be heated is heated only by the lower burner 31 out of the upper burner 30 and the lower burner 31 . Therefore, the frozen food is prevented from being heated more than necessary by the upper burner 30, and the frozen food is quickly thawed. That is, if the frozen food is heated by both the upper burner 30 and the lower burner 31 in each of the first heating process, the second heating process, and the third heating process, the frozen food continues to be heated by the radiant heat of the upper burner 30. The frozen food will be heated for a longer period of time, and the surface of the frozen food may be charred. However, in the present embodiment, since the frozen food is prevented from being continuously heated by the upper burner 30 for a long period of time, scorching of the surface of the frozen food is prevented. Moreover, the upper burner 30 is always ignited in each of the first heating process and the third heating process, and the lower burner 31 is always in the ignited state in each of the first heating process, the second heating process, and the third heating process. Ignition state. Therefore, the frozen food is sufficiently heated by the upper burner 30 and the lower burner 31 and quickly thawed.

Further, the ignition state of the lower burner 31 is maintained in the first heating process, the second heating process, and the third heating process. Therefore, the number of switching between the ignition state and the extinguishing state of the lower burner 31 is suppressed. Therefore, in the lower burner channel 322, there is no need to provide an on-off valve for switching between the ignition state and the extinguished state, such as the on-off valve 333a in the upper burner channel 321, and the configuration of the thawing cooking apparatus 1 can be improved. Can be simplified.

Further, in the present embodiment, the first predetermined time T1, the second predetermined time T2, the third predetermined time T3 and the fourth predetermined time T3 are set based on the operation time set by the user operating the grill operation unit 5. Each time T4 is determined. Therefore, the frozen food can be thawed appropriately according to the type and amount of the frozen food, the desired amount of heating, and the like.

Further, in the present embodiment, each of the first predetermined time T1, the second predetermined time T2, and the third predetermined time T3 stored as the data table indicates that the surface temperature of the frozen food during execution of the first thawing operation is The temperature is set so that frozen food does not burn.

Here, the surface temperature of the frozen food at which the surface of the frozen food starts to burn is generally in the range of 130° C. or higher and 150° C. or lower, although there are variations for each frozen food. For this reason, in the present embodiment, each of the first predetermined time T1, the second predetermined time T2, and the third predetermined time T3 is set so that the surface temperature of the frozen food is always less than 130° C. during execution of the first thawing operation. is set. Therefore, in the present embodiment, the frozen food is less likely to be scorched.

Tables 1 and 2 shown below are part of the data tables stored in the control unit 60 and used when executing the first defrosting operation. Table 1 is part of the data table when the initial temperature t0 is 20°C, and Table 2 is part of the data table when the initial temperature t0 is 100°C.

In the present embodiment, as shown in Tables 1 and 2, the time obtained by adding the change time of the first predetermined time T1 and the change time of the third predetermined time T3 when the operation time is long, and the second time The ratio of the predetermined time T2 to the change time is constant regardless of the length of the operating time. For example, when the initial temperature t0 is 20° C. and the operation time changes from 7 minutes to 8 minutes, +10 seconds (290 seconds−280 seconds), which is the change time of the first predetermined time T1, and the change of the third predetermined time T3. +10 seconds (90 seconds - 80 seconds), which is the time, is +20 seconds, and the ratio between this time and +20 seconds (60 seconds - 40 seconds), which is the change time of the second predetermined time T2, is 1 (+20 seconds/+20 seconds). Further, when the initial temperature t0 is 20° C. and the operating time changes from 7 minutes to 9 minutes, +20 seconds (300 seconds−280 seconds), which is the change time of the first predetermined time T1, and the change of the third predetermined time T3. The sum of +20 seconds (100 seconds - 80 seconds), which is the time, is +40 seconds, and the ratio between this time and +40 seconds (80 seconds - 40 seconds), which is the change time of the second predetermined time T2, is also 1 (+20 seconds/+20 seconds). In this way, the ratio between the sum of the change time of the first predetermined time T1 and the change time of the third predetermined time T3 and the change time of the second predetermined time T2 is constant regardless of the length of the operating time. As a result, it is further suppressed that the frozen food is heated by the upper burner 30 more than necessary.

Further, in the present embodiment, as shown in Tables 1 and 2, when the initial temperature t0 is high, the ratio of the first predetermined time T1 to the operating time and the ratio of the third predetermined time T3 to the operating time However, the first predetermined time T1 and the third predetermined time T3 are set so as to be shorter than when the initial temperature t0 is low. Further, when the initial temperature t0 is high, each of the ratio of the second predetermined time T2 to the operating time and the ratio of the fourth predetermined time T4 to the operating time is made larger than when the initial temperature t0 is low. , a second predetermined time T2 and a fourth predetermined time T4 are set.

For example, comparing the operation time of 7 minutes, when the initial temperature t0 is 20° C. as shown in Table 1, the ratio of the first predetermined time T1 to the operation time is 2/3 (280 seconds/420 seconds ), and the ratio of the third predetermined time T3 to the operating time is 4/21 (80 seconds/420 seconds). On the other hand, as shown in Table 2, when the initial temperature t0 is 100° C. and the operation time is 7 minutes, the ratio of the first predetermined time T1 to the operation time is 11/21 (220 seconds/420 seconds). , and the ratio of the third predetermined time T3 to the operating time is 3/14 (90 seconds/420 seconds). Thus, when the initial temperature t0 is high, each of the ratio of the first predetermined time T1 to the operating time and the ratio of the third predetermined time T3 to the operating time is smaller than when the initial temperature t0 is low. As a result, for example, when the thawing operation is performed in a state where the initial temperature t0 is high, such as when the automatic cooking operation is continuously performed a plurality of times, the frozen food may be heated by the upper burner 30 more than necessary. Suppressed.

In this embodiment, both the ratio of the first predetermined time T1 to the operating time and the ratio of the third predetermined time T3 to the operating time are smaller when the initial temperature t0 is higher than when the initial temperature t0 is low. , the ratio of the first predetermined time T1 to the operating time and the ratio of the third predetermined time T3 to the operating time may be smaller when the initial temperature t0 is high compared to when it is low.

The control unit 60 of this embodiment executes the first thawing operation by controlling the heating unit 3 according to the flowchart shown in FIG. When the first thawing operation is started, the control section 60 first executes the process of step S1. In the processing of step S1, the control unit 60 detects the temperature t of the cooking vessel 4 by the temperature detection unit 27 as the initial temperature t0, and compares the initial temperature t0 with the operation time set by operating the grill operation unit 5. , each of the first predetermined time T1, the second predetermined time T2, the third predetermined time T3, and the fourth predetermined time T4 is set.

The control unit 60 executes the process of step S2 following the process of step S1. The control unit 60 starts the first heating step in the process of step S2. Simultaneously with the start of the first heating step, the control unit 60 controls the thermal power changing unit 33 to ignite each of the upper burner 30 and the lower burner 31 .

The controller 60 always maintains the heating power of the upper burner 30 at "low" during the first heating step. Further, the control unit 60 always performs temperature control to switch the thermal power of the lower burner 31 based on the detection result of the temperature detection unit 27 during the first heating process. In this temperature regulation control, the control unit 60 detects the temperature t of the cooking vessel 4 by the temperature detection unit 27 at regular time intervals, and the detected temperature t is equal to or higher than a preset first predetermined temperature t1 (see FIG. 7). If so, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "low", while if the temperature is lower than the first predetermined temperature t1, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "high". ”. The first predetermined temperature t1 in this embodiment is 140°C. Note that the first predetermined temperature t1 is not limited to 140°C.

The control unit 60 executes the process of step S3 following the process of step S2. In the process of step S3, the control unit 60 determines whether or not the first heating process execution time, which is the time that has elapsed since the start of the first heating process, is equal to or longer than the first predetermined time T1.

In the process of step S3, if the execution time of the first heating process is not equal to or longer than the first predetermined time T1, the control unit 60 waits for a certain period of time in step S4, and then executes the process of step S3. In the processing of step S3, if the first heating process execution time is equal to or longer than the first predetermined time T1, the control section 60 executes the processing of step S5.

In the process of step S5, the control unit 60 ends the first heating process and starts the second heating process. Simultaneously with the start of the second heating process, the control unit 60 controls the thermal power changing unit 33 to turn off the upper burner 30 .

The controller 60 always puts the upper burner 30 in the extinguished state during the second heating step. In addition, the control unit 60 always performs temperature control to switch the thermal power of the lower burner 31 based on the detection result of the temperature detection unit 27 during the second heating process. This temperature control is the same as the temperature control of the lower burner 31 executed in the first heating step. That is, the control unit 60 detects the temperature t of the cooking container 4 by the temperature detection unit 27 at regular time intervals, and the detected temperature t is equal to or higher than a preset first predetermined temperature t1 (140° C. in this embodiment). If so, the heating power changer 33 is controlled to switch the heating power of the lower burner 31 to "low", while if the temperature is lower than the first predetermined temperature t1, the heating power changing part 33 is controlled to switch the heating power of the lower burner 31 to "strong". switch to

The control unit 60 executes the process of step S6 following the process of step S5. In the processing of step S6, the control unit 60 determines whether or not the second heating process execution time, which is the time elapsed from the start of the second heating process to the present, is equal to or longer than the second predetermined time T2.

In the processing of step S6, if the execution time of the second heating process is not equal to or longer than the second predetermined time T2, the control section 60 waits for a predetermined time in step S7, and then executes the processing of step S6. In the processing of step S6, if the execution time of the second heating process is equal to or longer than the second predetermined time T2, the control section 60 executes the processing of step S8.

In the process of step S8, the control unit 60 ends the second heating process and starts the third heating process. Simultaneously with the start of the third heating step, the control section 60 controls the thermal power changing section 33 to ignite the upper burner 30 .

The control unit 60 always sets the heating power of the upper burner 30 to "low" during the third heating step. Further, the control unit 60 always performs temperature control to switch the heating power of the lower burner 31 based on the detection result of the temperature detection unit 27 during the third heating process. This temperature control is the same as the temperature control of the lower burner 31 executed in the first heating step. That is, the control unit 60 detects the temperature t of the cooking container 4 by the temperature detection unit 27 at regular time intervals, and the detected temperature t is equal to or higher than a preset first predetermined temperature t1 (140° C. in this embodiment). If so, the heating power changer 33 is controlled to switch the heating power of the lower burner 31 to "low", while if the temperature is lower than the first predetermined temperature t1, the heating power changing part 33 is controlled to switch the heating power of the lower burner 31 to "strong". switch to

The control unit 60 executes the process of step S9 following the process of step S8. In the process of step S9, the control unit 60 determines whether or not the third heating process execution time, which is the time elapsed from the start of the third heating process to the present, is equal to or longer than the third predetermined time T3.

In the processing of step S9, if the execution time of the third heating process is not equal to or longer than the third predetermined time T3, the control unit 60 waits for a certain time in step S10, and then executes the processing of step S9. In the processing of step S9, if the execution time of the third heating process is equal to or longer than the third predetermined time T3, the control section 60 executes the processing of step S11.

In the process of step S11, the control unit 60 ends the third heating process and starts the preheating process. Simultaneously with the start of the preheating process, the control unit 60 controls the heating power changing unit 33 to turn off the upper burner 30 and the lower burner 31 respectively. During the preheating process, the control unit 60 always extinguishes each of the upper burner 30 and the lower burner 31 .

The control unit 60 executes the process of step S12 following the process of step S11. In the process of step S12, the control unit 60 determines whether or not the preheating process execution time, which is the time elapsed from the start of the preheating process to the present, is equal to or longer than the fourth predetermined time T4.

In the process of step S12, if the preheating process execution time is not equal to or longer than the fourth predetermined time T4, the control unit 60 waits for a certain period of time in step S13, and then executes the process of step S12. In the processing of step S12, if the preheating process execution time is equal to or longer than the fourth predetermined time T4, the control section 60 executes the processing of step S14.

The control unit 60 ends the preheating process in the process of step S14. The control unit 60 notifies the completion of the first thawing operation by the notification unit 17 at the same time as the preheating process is completed. This completes the first thawing operation.

Next, the second thawing operation performed when the heat level is set to "strong" will be described. As shown in FIG. 8, the second thawing operation includes a first heating step. The second thawing operation of this embodiment is composed only of the first heating step.

During the first heating step in the second thawing operation, the control unit 60 always keeps the upper burner 30 extinguished and the lower burner 31 always ignited. Also, the control unit 60 switches the thermal power of the lower burner 31 between “high” and “low” based on the detection result of the temperature detection unit 27 in the first heating step of the second thawing operation.

The control unit 60 executes the first heating step of the second thawing operation for the first predetermined time T1. The control unit 60 of this embodiment executes only the first heating step in the second thawing operation. Therefore, the first predetermined time T1 is the operation time set by operating the grill operation unit 5 .

The control unit 60 of this embodiment executes the second thawing operation by controlling the heating unit 3 according to the flowchart shown in FIG. When the second thawing operation is started, the control section 60 first executes the process of step S21. The control unit 60 starts the first heating step in the process of step S21.

Simultaneously with the start of the first heating step, the control unit 60 controls the thermal power changing unit 33 to ignite the lower burner 31 . The controller 60 always puts the upper burner 30 in the extinguished state during the first heating step. Therefore, the surface of the frozen food is less likely to be scorched.

Further, the control unit 60 always performs temperature control to switch the thermal power of the lower burner 31 based on the detection result of the temperature detection unit 27 during the first heating process. In this temperature regulation control, the control unit 60 detects the temperature t of the cooking vessel 4 by the temperature detection unit 27 at regular time intervals, and the detected temperature t is equal to or higher than a preset second predetermined temperature t2 (see FIG. 8). If so, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "low", while if the temperature is less than the second predetermined temperature t2, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "high". ”. The second predetermined temperature t2 is a temperature higher than the first predetermined temperature t1 used for temperature control of the lower burner 31 in the first thawing operation, and is 180° C. in this embodiment. Therefore, in the second thawing operation, the frozen food is heated to a higher temperature than when the first thawing operation is performed. Note that the second predetermined temperature t2 is not limited to 180°C.

The control unit 60 executes the process of step S22 following the process of step S21. In the process of step S22, the control unit 60 determines whether or not the first heating process execution time, which is the time that has elapsed since the start of the first heating process, is equal to or longer than the first predetermined time T1.

In the processing of step S22, if the execution time of the first heating process is not equal to or longer than the first predetermined time T1, the control unit 60 waits for a predetermined time in step S23, and then executes the processing of step S22. In the process of step S22, if the first heating process execution time is equal to or longer than the first predetermined time T1, the control section 60 executes the process of step S24. The control unit 60 ends the first heating step in the process of step S24. The control unit 60 notifies the end of the second thawing operation by the notification unit 17 at the same time as the end of the first heating step. This completes the second thawing operation.

Next, the third thawing operation performed when the heat level is set to "low" will be described. As shown in FIG. 9, the third thawing operation includes a first heating step and a preheating step. In the third thawing operation, the first heating step and the preheating step are performed in this order. The third thawing operation of the present embodiment consists only of the first heating process and the preheating process.

The first heating step of the third thawing operation is the first step performed in the third thawing operation. The control unit 60 keeps each of the upper burner 30 and the lower burner 31 ignited during the first heating step of the third thawing operation. In addition, in the first heating step of the third thawing operation, the control unit 60 maintains the heating power of the upper burner 30 at "strong" and adjusts the heating power of the lower burner 31 based on the detection result of the temperature detection unit 27. , switch between "strong" and "weak".

The preheating step of the third thawing operation is a step that is performed subsequent to the first heating step. During the preheating step of the third thawing operation, the control unit 60 turns off both the upper burner 30 and the lower burner 31 . In the preheating step, the object to be heated is heated by the preheat of the cooking vessel 4 .

When executing the third thawing operation, the control unit 60 sets a first predetermined time T1 and a fourth predetermined time T4 as the scheduled execution time of the first heating process and the scheduled execution time of the preheating process, respectively. As in the case of executing the first thawing operation, this setting includes the operating time set by the user operating the grill operation unit 5 and the temperature detection unit 27 at the start of the third thawing operation. It is performed based on the initial temperature t0 of the heating chamber 2 that has been set.

Specifically, the controller 60 stores a plurality of data tables corresponding to the initial temperature t0. Each data table is a table in which each of the first predetermined time T1 and the fourth predetermined time T4 is determined for each operating time, and is set based on experimental results. The control unit 60 sets the first predetermined time T1 and the fourth predetermined time T4 corresponding to the operating time in the data table corresponding to the initial temperature t0 as the scheduled execution time of the first heating process and the scheduled execution time of the preheating process, respectively. do.

The control unit 60 of this embodiment executes only the first heating process and the preheating process in the third thawing operation. Therefore, the total time obtained by adding the first predetermined time T1 and the fourth predetermined time T4 is the operating time set by operating the grill operating section 5 .

Tables 3 and 4 shown below are part of the data tables stored in the control unit 60 and used when executing the third thawing operation. Table 3 is part of the data table when the initial temperature t0 is 20°C, and Table 4 is part of the data table when the initial temperature t0 is 100°C.

The control unit 60 of this embodiment executes the third thawing operation by controlling the heating unit 3 according to the flowchart shown in FIG. When the third thawing operation is started, the control section 60 first executes the process of step S31. In the process of step S31, the control unit 60 detects the temperature t of the cooking vessel 4 by the temperature detection unit 27 as the initial temperature t0, and combines this initial temperature t0 with the operation time set by operating the grill operation unit 5. Each of the first predetermined time T1 and the fourth predetermined time T4 is set based on and.

The control unit 60 executes the process of step S32 following the process of step S31. The control unit 60 starts the first heating step in the process of step S32. Simultaneously with the start of the first heating step, the control unit 60 controls the thermal power changing unit 33 to ignite each of the upper burner 30 and the lower burner 31 .

The control unit 60 always sets the heating power of the upper burner 30 to "strong" during the first heating step. Therefore, moisture on the surface of the frozen food can be blown off. Further, the control unit 60 always performs temperature control to switch the thermal power of the lower burner 31 based on the detection result of the temperature detection unit 27 during the first heating process. In this temperature regulation control, the control unit 60 detects the temperature t of the cooking vessel 4 by the temperature detection unit 27 at regular time intervals, and the detected temperature t is equal to or higher than a preset third predetermined temperature t3 (see FIG. 9). If so, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "low", while if the temperature is less than the third predetermined temperature t3, the heating power changing unit 33 is controlled to switch the heating power of the lower burner 31 to "high". ”. The third predetermined temperature t3 is a temperature lower than the first predetermined temperature t1 used for temperature control of the lower burner 31 in the first thawing operation, and is 130° C. in this embodiment. Note that the third predetermined temperature t3 is not limited to 130°C.

The control unit 60 executes the process of step S33 following the process of step S32. In the process of step S33, the control unit 60 determines whether or not the first heating process execution time, which is the time that has elapsed since the start of the first heating process, is equal to or longer than the first predetermined time T1.

In the processing of step S33, if the execution time of the first heating process is not equal to or longer than the first predetermined time T1, the control unit 60 waits for a predetermined time in step S34, and then executes the processing of step S33. In the process of step S33, if the first heating process execution time is equal to or longer than the first predetermined time T1, the control section 60 executes the process of step S35.

In the process of step S35, the control unit 60 ends the first heating process and starts the preheating process. Simultaneously with the start of the preheating process, the control unit 60 controls the heating power changing unit 33 to turn off the upper burner 30 and the lower burner 31 respectively. During the preheating process, the control unit 60 always extinguishes each of the upper burner 30 and the lower burner 31 .

The control unit 60 executes the process of step S36 following the process of step S35. In the process of step S36, the control unit 60 determines whether or not the preheating process execution time, which is the time elapsed from the start of the preheating process to the present, is equal to or longer than the fourth predetermined time T4.

In the processing of step S36, if the preheating process execution time is not equal to or longer than the fourth predetermined time T4, the control section 60 waits for a predetermined time in step S37, and then executes the processing of step S36. In the processing of step S36, if the preheating process execution time is equal to or longer than the fourth predetermined time T4, the control section 60 executes the processing of step S38.

The control unit 60 ends the preheating process in the process of step S38. The control unit 60 notifies the completion of the third thawing operation by the notification unit 17 at the same time as the preheating process is completed. This completes the third thawing operation.

(2) Modifications The design of the thawing cooking device 1 of the above embodiment can be changed as appropriate. For example, the thermal power of the upper burner 30 and the thermal power of the lower burner 31 in the first heating process, the second heating process, the third heating process, and the preheating process performed in the first thawing operation are not limited. For example, the heating power of the upper burner 30 in the first heating step of the first thawing operation may be "strong". Also, the heating power of the upper burner 30 in the third heating step of the first thawing operation may be "strong".

Further, in the second heating step in the above embodiment, only the lower burner 31 of the upper burner 30 and the lower burner 31 may be extinguished. That is, in this case, in the second heating step, the object to be heated is continuously heated by only the upper burner 30 of the upper burner 30 and the lower burner 31 for the second predetermined time T2. Also in this case, it is possible to prevent the frozen food from being scorched.

Moreover, it may replace with a 2nd heating process and may perform the 2nd fire-extinguishing process shown below. The second fire extinguishing step is a step of continuously extinguishing the upper burner 30 and the lower burner 31 for a second predetermined time after the first heating step. That is, in this case, the second fire extinguishing process is performed following the first heating process, the third fire extinguishing process is performed following the second fire extinguishing process, and the preheating process is performed following the third fire extinguishing process. In this case as well, it is possible to prevent the frozen food from being scorched.

Further, in the first thawing operation in the above embodiment, each of the first predetermined time T1, the second predetermined time T2, the third predetermined time T3, and the fourth predetermined time T4 is determined according to the initial temperature t0. It may be determined regardless of the initial temperature t0. Further, the preheating step may not be performed in each of the first thawing operation and the third thawing operation.

Further, in the present embodiment, the operation time of each of the first defrosting operation, the second defrosting operation, and the third defrosting operation can be changed by the user's operation of the grill operation unit 5, but cannot be changed. good too. Further, in the present embodiment, the thawing operation to be executed is changed based on the "heat level" set by operating the grill operation unit 5. For example, the first thawing operation, the second thawing operation and the third thawing operation Only the first defrost operation of the defrost operations may be executable.

Further, the upper burner thermal power adjustment unit 333 is not limited to the on-off valve 333a and the on-off valve 333b. For example, the upper burner thermal power adjustment unit 333 may be a flow control valve or the like provided in the upper burner flow path 321 . Further, the lower burner thermal power adjustment unit 334 is not limited to the on-off valve 334a. For example, the lower burner thermal power adjustment unit 334 may be a flow control valve or the like provided in the lower burner flow path 322 . Further, each of the upper burner heating power adjusting section 333 and the lower burner heating power adjusting section 334 may be capable of adjusting the heating power of the corresponding upper burner 30 and lower burner 31 in three or more steps.

Moreover, the temperature detection unit 27 is not limited to one that contacts the cooking vessel 4 . For example, the temperature detection unit 27 may detect information correlated with the temperature of the cooking vessel 4 by detecting the temperature in the heating chamber 2, the temperature of the gas discharged from the heating chamber 2, and the like. . In the present disclosure, sensing information correlated with the temperature of the cooking vessel 4 in this manner is also included in sensing the temperature of the cooking vessel 4 .

Moreover, the shape of the cooking container 4 is not limited, and may be, for example, a dish shape with a shallow bottom. Also, the cooking container 4 is not essential in the thawing cooking device 1 . For example, if the thawing cooking apparatus 1 does not have the cooking container 4, another cooking container may be prepared in place of the cooking container 4, and the above-described thawing cooking may be performed using this cooking container.

In addition, the shape, size, material, etc. of each element of the thawing cooking apparatus 1 can be changed as appropriate. Moreover, the technique of this indication is applicable also to gas stoves other than drop-in stoves, such as a table stove. In addition, the technique of the present disclosure can also be applied to a thawing cooking device 1 other than a gas stove with a grill, such as a grill device without a stove burner.

(3) Aspects As is clear from the embodiment and modifications described above, the defrosted cooking device (1) of the first aspect has the following configuration. A thawing cooking device (1) comprises a heating chamber (2), a heating section (3) and a control section (60). A heating unit (3) heats a cooking container (4) housed in a heating chamber (2) and a heating object including frozen food placed in the cooking container (4). A control section (60) controls the heating section (3). The heating section (3) has an upper burner (30) and a lower burner (31). An upper burner (30) heats the object to be heated from above. A lower burner (31) heats the object to be heated from below. A control unit (60) controls a heating unit (3) to perform a thawing operation (first thawing operation) for heating the object to be heated. The control section (60) performs a first heating step, a second heating step, and a third heating step in the thawing operation. Alternatively, the control section (60) executes a first heating step, a second extinguishing step, and a third heating step in the thawing operation. The first heating step is a step of continuously heating the object to be heated for a first predetermined time (T1) with both the upper burner (30) and the lower burner (31). In the second heating step, after the first heating step, only the lower burner (31) of the upper burner (30) and the lower burner (31) continues to heat the object to be heated for a second predetermined time (T2). and heating. The second extinguishing step is a step of continuously extinguishing the upper burner (30) and the lower burner (31) for a second predetermined time after the first heating step. The third heating step is a step of heating the object to be heated with both the upper burner (30) and the lower burner (31) after the second heating step or the second extinguishing step.

According to this aspect, the object to be heated is heated by both the upper burner (30) and the lower burner (31) in each of the first heating step and the third heating step. In the second heating process performed between the first heating process and the third heating process, the object to be heated is heated only by the lower burner 31 of the upper burner (30) and the lower burner (31). be. Alternatively, in the second extinguishing process performed between the first heating process and the third heating process, the object to be heated is not heated by the upper burner (30) and the lower burner (31). Therefore, the frozen food is prevented from being scorched by being heated more than necessary, and the frozen food is quickly thawed.

The thawing cooking device (1) of the second aspect can be realized by combining with the first aspect. The thawing cooking device (1) of the second aspect has the following configuration. In the thawing operation, after the third heating step, the control section (60) executes a preheating step of stopping heating by the upper burner (30) and the lower burner (31) for a predetermined time (fourth predetermined time T4). .

According to this aspect, by performing the preheating step, the difference between the surface temperature and the internal temperature of the frozen food is reduced, and the frozen food is easily thawed appropriately.

The thawing cooking device (1) of the third aspect can be realized by combining with the first or second aspect. The thawing cooking device (1) of the third aspect has the following configuration. The thawing cooking device (1) further includes an operation section (grilling operation section 5). The operation part (5) is used to set the operation time of the thawing operation. The third heating step is a step of continuously heating the object to be heated for a third predetermined time (T3) with both the upper burner (30) and the lower burner (31). A control unit (60) sets a first predetermined time (T1), a second predetermined time (T2) and a third predetermined time (T3) based on the operation time set by the operation unit (5).

According to this aspect, each of the first predetermined time (T1), the second predetermined time (T2), and the third predetermined time (T3) is determined based on the operating time set by the operation unit (5). . Therefore, the frozen food can be thawed appropriately according to the type and amount of the frozen food, the desired amount of heating, and the like.

The thawing cooking device (1) of the fourth aspect can be realized by combining with the third aspect. The defrosting cooking device (1) of the fourth aspect has the following configuration. The control unit (60) calculates the time obtained by adding the change time of the first predetermined time (T1) and the change time of the third predetermined time (T3) when the operation time becomes longer, and the second predetermined time ( The first predetermined time (T1), the second predetermined time (T2), and the third predetermined time (T3) are set so that the ratio of the change time to T2) is constant regardless of the length of the operating time.

According to this aspect, it is further suppressed that the frozen food is heated more than necessary.

The thawing cooking device (1) of the fifth aspect can be realized by combining with the third or fourth aspect. The thawing cooking device (1) of the fifth aspect has the following configuration. The thawing cooking device (1) further comprises a temperature sensing section (27). A temperature detector (27) detects the temperature (t) of the cooking vessel (4). The control unit (60) detects the temperature (t) of the cooking vessel (4) as the initial temperature (t0) by the temperature detection unit (27) at the start of the thawing operation, and detects that the initial temperature (t0) is high. at least one of the ratio of the first predetermined time (T1) to the operating time and the ratio of the third predetermined time (T3) to the operating time is lower than when the initial temperature (t0) is low. The first predetermined time (T1), the second predetermined time (T2), and the third predetermined time (T3) are set so that they become smaller by the time.

According to this aspect, it is further suppressed that the frozen food is heated more than necessary.

t Temperature of cooking container t0 Initial temperature T1 First predetermined time T2 Second predetermined time T3 Third predetermined time T4 Fourth predetermined time 1 Defrosting cooking device 2 Heating chamber 27 Temperature detector 3 Heating unit 30 Upper burner 31 Lower burner 4 Cooking Vessel 5 Grill operation part (operation part)
60 control unit

Claims (5)

a heating chamber;
a heating unit that heats the object to be heated including the cooking container housed in the heating chamber and the frozen food placed in the cooking container;
a control unit that controls the heating unit to perform a thawing operation for heating the object to be heated ;
and an operation unit for setting the operation time of the thawing operation ,
The heating unit is
an upper burner for heating the object to be heated from above;
a lower burner for heating the object to be heated from below ;
The control unit, in the thawing operation,
a first heating step of continuously heating the object to be heated by both the upper burner and the lower burner for a first predetermined time;
After the first heating step, a second heating step of continuously heating the object to be heated for a second predetermined time only with the upper burner or the lower burner, or after the first heating step, the upper burner and a second extinguishing step of continuously extinguishing the lower burner for a second predetermined time;
After the second heating step or the second fire-extinguishing step, a third heating step of continuously heating the object to be heated for a third predetermined time is performed by both the upper burner and the lower burner. ,
The control unit sets the first predetermined time, the second predetermined time, and the third predetermined time based on the operating time set by the operation unit.
Thaw cooking device. The control unit, in the thawing operation,
After the third heating step, performing a preheating step of stopping heating by the upper burner and the lower burner for a predetermined time,
The thawing cooking device according to claim 1. The control unit controls the ratio between the time obtained by adding the change time of the first predetermined time and the change time of the third predetermined time when the operating time is long, and the change time of the second predetermined time. is set to be constant regardless of the length of the operating time, the first predetermined time, the second predetermined time, and the third predetermined time;
The thawing cooking device according to claim 2 . Further comprising a temperature detection unit that detects the temperature of the cooking container,
The control unit detects the temperature of the cooking container as an initial temperature by the temperature detection unit when the thawing operation is started, and detects the ratio of the first predetermined time to the operation time when the initial temperature is high. and the ratio of the third predetermined time to the operating time is smaller than when the initial temperature is low. 3 Set a predetermined time,
The thawing cooking device according to claim 2 or 3. a heating chamber;
a heating unit that heats the object to be heated including the cooking container housed in the heating chamber and the frozen food placed in the cooking container;
A control unit that controls the heating unit,
The heating unit
an upper burner for heating the object to be heated from above;
a lower burner for heating the object to be heated from below;
The control unit controls the heating unit to perform a thawing operation for heating the object to be heated,
The control unit, in the thawing operation,
a first heating step of continuously heating the object to be heated by both the upper burner and the lower burner for a first predetermined time;
After the first heating step, a second fire extinguishing step of continuously extinguishing the upper burner and the lower burner for a second predetermined time;
After the second fire extinguishing step, both the upper burner and the lower burner perform a third heating step of heating the object to be heated,
Thaw cooking device.

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