JP6913600B2 - Cooker - Google Patents

Description

The techniques disclosed herein relate to cookers.

Patent Document 1 discloses a burner for heating an object to be heated by using gas, and a heating cooker provided with a control means for adjusting a gas supply amount to control the thermal power of the burner. The cooking device of Patent Document 1 is a so-called gas stove. In Patent Document 1, the size of the object to be heated is determined from above the object to be heated, the thermal power of the burner is reduced when the flame protrudes to the outside of the object to be heated, and the state in which the flame protrudes from the object to be heated is eliminated. is doing.

Japanese Unexamined Patent Publication No. 2010-14342

In Patent Document 1, the waste of heat energy is suppressed by eliminating the protrusion of the flame from the object to be heated, and the safety is ensured by preventing the flame from coming into contact with the user. However, during cooking, the user may intentionally shift the object to be heated, or another cooking device may touch the object to be heated and the position of the object to be heated may be displaced. In such a case, if the heating power of the burner is lowered, the cookability may be lowered. An object of the present specification is to provide a cooking device having excellent cookability while ensuring safety.

The cooking cooker disclosed in the present specification may include a burner, a control means, a contour detection means, a flame detection means, and a notification means. The burner may use gas to heat the object to be heated. The control means may control the thermal power of the burner by adjusting the gas supply amount. The contour detecting means may detect the contour of the object to be heated from above the object to be heated. The flame detecting means may detect whether or not the flame protrudes from above the object to be heated to the outside of the contour of the object to be heated. In this cooker, the control means so that when the flame detecting means detects that the flame protrudes outside the contour of the object to be heated, the outer edge of the flame is located inside the contour of the object to be heated. The gas supply may be reduced. In addition, the control means reduces the gas supply amount to position the outer edge of the flame inside the contour of the object to be heated, and then the flame detecting means again detects that the flame protrudes outside the contour of the object to be heated. When this happens, the notification means may be notified of the outflow of the flame without reducing the gas supply amount.

In the above-mentioned cooking cooker, when the outflow of the flame is detected again after the outflow of the flame is detected by reducing the outflow of the gas, the outflow of the flame is not lowered. The phenomenon that the flame squeeze out is detected again after the flame squeeze out is not caused by the burning power of the burner being too strong, but by the displacement of the heating object with respect to the burner. Therefore, in such a case, it is possible to prevent the cookability from being lowered by notifying the user that the flame is protruding from the user through the notification means while maintaining the thermal power of the burner. By notifying the protrusion of the flame, the user can manually reduce the gas supply amount (heat power of the burner) and adjust the position of the object to be heated with respect to the burner as necessary, which is safe. Is also secured.

When the flame continues to protrude even after a predetermined time has passed from the notification by the notification means, the control means reduces the gas supply amount so that the outer edge of the flame is located inside the contour of the object to be heated. good. Even if the flame protrusion is caused by the misalignment of the object to be heated with respect to the burner, it is not preferable for safety that the flame protrusion continues. Therefore, in such a case, safety can be ensured by reducing the gas supply amount.

The perspective view of the cooking apparatus is shown. The front view of the cooking apparatus and the range hood is shown. A block diagram of a control configuration of a cooking device is shown. The flowchart of the thermal power adjustment process is shown.

The cooking device 2 will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the heating cooker 2 is a gas combustion type built-in stove used by being incorporated in a system kitchen. The cooking cooker 2 includes a main body 4 whose front surface 4a is exposed to the front side of the system kitchen, and a top plate 6 which is arranged above the main body 4 and is exposed to the counter top of the system kitchen. The top plate 6 is provided with three trivets 8a, 8b, and 8c that support cooking containers such as pots and frying pans, which are objects to be heated. Further, corresponding to the respective trivets 8a, 8b, 8c, stove burners 10a, 10b, 10c for heating the object to be heated supported by the respective trivets 8a, 8b, 8c are provided. Further, sensors 12a, 12b, 12c are provided corresponding to the stove burners 10a, 10b, 10c.

A gas supply path (not shown) is connected to each of the stove burners 10a, 10b, and 10c arranged adjacent to each other. The gas supply path is provided with a flow rate adjusting valve (not shown) for adjusting the amount of gas supplied to the stove burner 10a. The stove burner 10a is ignited by operating an igniter (not shown) while the gas is being supplied to the stove burner 10a. By adjusting the amount of gas supplied to the stove burner 10a, the heating amount of the stove burner 10a can be adjusted. Further, the fire of the stove burner 10a is extinguished by stopping the supply of gas to the stove burner 10a. The stove burners 10b and 10c have the same structure as the stove burner 10a.

The main body 4 includes a grill storage 20 provided inside the main body 4 to store foodstuffs, and a grill door 22 arranged on the front surface 4a of the main body 4 to open and close the grill storage 20. Further, the main body 4 includes a stove operation unit 24 provided on the right side of the grill door 22 on the front surface 4a of the main body 4, and a grill operation unit 26 provided on the left side of the grill door 22 on the front surface 4a of the main body 4. .. Inside the grill storage 20, a grill burner (not shown) for heating the foodstuffs housed in the grill storage 20 is provided. In the cooking cooker 2, the front surface 4a of the main body 4 and the upper surface of the top plate 6 form an outer surface exposed to the user. In the following description, when explaining common features of a plurality of parts having substantially the same configuration, such as "Gotoku 8a, 8b, 8c", the alphabet of the reference number is omitted, for example, "Gotoku 8". May be explained.

Sensors 12 (12a to 12c) are provided corresponding to each stove burner 10 (10a to 10c). The sensor 12 detects the presence of the object to be heated. When the object to be heated is placed on the stove burner 10, the sensor 12 can detect the object to be heated. When the object to be heated is placed on the stove burner 10, the sensor 12 is pressed by the object to be heated. The sensor 12 detects that the object to be heated is placed on the stove burner 10 when pressed by the object to be heated. When the object to be heated is not arranged on the stove burner 10, the sensor 12 is not pressed.

The stove operation unit 24 includes a power switch 40 of the cooking cooker 2, three heating amount operation units 42a, 42b, 42c, and a panel operation unit 44. The heating amount control units 42a, 42b, and 42c correspond to the stove burners 10a, 10b, and 10c, respectively. Further, each heating amount operating unit 42a, 42b, 42c is surrounded by LED light emitting units 43a, 43b, 43c capable of emitting blue or red light, respectively. The heating amount operating unit 42 is an operating unit for igniting and extinguishing the stove burner 10 and adjusting the heating amount of the stove burner 10. The heating amount control unit 42 is an alternate type switch. When the user executes an operation for moving the heating amount operating unit 42 from the fire extinguishing position to the ignition position (hereinafter referred to as “ignition operation”), the stove burner 10 is ignited, and the heating amount operating unit 42 is ignited by the user. When an operation for moving the stove from the ignition position to the fire extinguishing position (hereinafter referred to as "fire extinguishing operation") is executed, the stove burner 10 is extinguished. The ignition position is a position where the front surface of the heating amount operating unit 42 protrudes forward from the front surface 4a of the main body 4, and the fire extinguishing position is a position where the heating amount operating unit 42 is housed in the main body 4. be. Further, the user adjusts the amount of gas supplied to the stove burner 10 by operating the heating amount operating unit 42 clockwise or counterclockwise while the heating amount operating unit 42 is located at the ignition position. , The heating amount of the stove burner 10 (hereinafter, may be referred to as "thermal power") can be adjusted.

The panel operation unit 44 includes a display unit 46, heating temperature operation units 48a and 48b, automatic cooking selection operation units 50a and 50b, a recipe selection operation unit 54, and a cooking state operation unit 56. The display unit 46 displays the operating state of the stove burner 10. The heating temperature operation unit 48 is an operation unit for setting the temperature (for example, 180 ° C.) of the object to be heated to be heated by the stove burner 10. The automatic cooking selection operation unit 50 is an operation unit for selecting cooking in the automatic cooking mode using the stove burner 10. The recipe selection operation unit 54 is an operation unit for selecting a recipe to be cooked in the automatic cooking mode. The cooking state operation unit 56 is an operation unit for adjusting the state of the ingredients cooked in the automatic cooking mode, for example, the degree of baking.

The grill operation unit 26 includes a heating amount operation unit 60 and a panel operation unit 62. The heating amount control unit 60 is surrounded by an LED light emitting unit 61 capable of emitting blue or red light. By operating the heating amount control unit 60, the user can ignite and extinguish the grill burner and adjust the heating amount of the grill burner (hereinafter, may be referred to as "heat power"). The structure of the heating amount operating unit 60 is the same as that of the heating amount operating unit 42 of the stove operating unit 24.

The panel operation unit 62 includes a display unit 64, an automatic cooking selection operation unit 66, a recipe selection operation unit 68, and a cooking state operation unit 70. The display unit 64 displays the operating state of the grill burner and the like. The functions of the automatic cooking selection operation unit 66, the recipe selection operation unit 68, and the cooking state operation unit 70 are the automatic cooking selection operation unit 50, the recipe selection operation unit 54, respectively, except that the operation unit corresponds to the grill burner. It has the same function as the cooking state operation unit 56.

As shown in FIG. 2, a range hood 30 is provided above the cooking cooker 2. Further, cameras 80a, 80b, 80c are arranged at positions corresponding to the stove burners 10a, 10b, 10c of the range hood 30, respectively. Note that FIG. 2 shows only the cameras 80a and 80b corresponding to the stove burners 10a and 10b, and the illustration of the camera 80c is omitted. The camera 80 photographs the heating object (for example, a pot or a frying pan) 32 arranged on the trivet 8 from above, and detects the contour 32a of the heating object 32. The camera 80 also includes an infrared sensor and detects the temperature around the object to be heated 32. The camera 80 is a part of the cooking device 2 and is an example of the contour detecting means and the flame detecting means. By detecting the temperature around the object to be heated 32, it is possible to detect the presence or absence of the flame protruding from the object to be heated 32. The camera 80 continuously detects the contour of the heating object 32 and the temperature around the heating object 32 while the heating cooker 2 is in use.

FIG. 3 shows a control configuration of the cooking cooker 2. The heating cooker 2 includes a notification unit 90, a control unit 110, and a memory 120. The notification unit 90 notifies the user of information such as the outflow of flame through the display unit 46, the speaker (not shown), and the like in FIG. The control unit 110 controls the operation of each component of the cooking cooker 2. The control unit 110 is an example of control means. The control unit 110 executes various processes according to the program stored in the memory 120. The memory 120 is composed of a volatile memory, a non-volatile memory, and the like. The memory 120 also stores the past usage history of the stove burner 10 (time when the fire extinguishing operation of the stove burner 10 was performed, etc.) and control history (the gas supply amount was reduced, the thermal power was adjusted, etc.). Has been done.

With reference to FIG. 4, the thermal power adjustment process executed by the control unit 110 of the cooking cooker 2 will be described. The thermal power adjustment process is a process for detecting that the flame of the stove burner 10 protrudes from the object to be heated 32 and reducing the thermal power of the stove burner 10 (reducing the gas supply amount). When any of the heating amount control units 42a, 42b, and 42c is ignited and any of the stove burners 10a, 10b, and 10c is ignited, the control unit 110 adjusts the thermal power of the ignited stove burner 10. Therefore, the process shown in FIG. 4 is started. That is, the control unit 110 executes the process of FIG. 4 for each of the ignited stove burners 10.

When the stove burner 10 is ignited, the control unit 110 reads the data captured by the camera 80 and detects the presence or absence of a flame protruding outside the contour 32a of the heating object 32 (step S2). When the flame protruding outside the contour 32a is not detected (step S2: NO), the photographing of the contour 32a and the detection of the flame protruding outside the contour 32a are repeated.

When a flame protruding outside the contour 32a is detected (step S2: YES), it is determined whether or not the flame protruding first after igniting the stove burner 10 (step S4). When the flame is initially detected (step S4: YES), the control unit 110 reduces the gas supply amount so that the outer edge of the flame is located inside the contour 32a of the object to be heated 32. The thermal power of the stove burner 10 is reduced (step S6), and the process proceeds to step S14. The history of reducing the gas supply amount is stored in the memory 120. The determination as to whether or not the flame is initially detected in step S4 can be determined by reading the adjustment history of the gas supply amount from the memory 120.

When it is not the first detected flame protrusion (step S4: NO), it is determined whether or not it has been notified that the flame protrusion has occurred (step S8), and when it has not been notified (step S8: NO), The control unit 110 notifies through the notification unit 90 that the flame is protruding (step S10), and proceeds to step S14. In this case, the thermal power of the stove burner 10 is maintained because the gas supply amount is not reduced only by notifying the protrusion of the flame.

When it is determined in step S8 that the notification has been completed (step S8: YES), it is determined whether or not a predetermined time has elapsed after the notification (step S12). When a predetermined time has elapsed from the notification (step S12: YES), the gas supply amount is reduced so that the outer edge of the flame is located inside the contour 32a of the object to be heated 32 (step S6), and the process proceeds to step S6. move on. That is, the gas supply amount is not adjusted shortly after the notification of the flame protrusion (within a predetermined time), and the gas supply amount is reduced after a certain time has passed (after the predetermined time has elapsed). , Eliminate the protrusion of flame. On the other hand, if the predetermined time has not elapsed since the notification (step S12: NO), the gas supply amount is not reduced and the process proceeds to step S14.

In step S14, it is determined whether or not the stove burner 10 has extinguished the fire. When the stove burner 10 is extinguished (step S14: YES), the above process is terminated. On the other hand, when the stove burner 10 has not extinguished the fire (step S14: NO), the process returns to step S2 and the above process is repeated. That is, the above process is repeated during the ignition of the stove burner 10 (step S14: NO), and continues until the stove burner 10 is extinguished (step S14: YES).

By performing the above-mentioned thermal power adjustment process, when the flame squeeze out is detected for the first time, a process for eliminating the flame squeeze out (a process for reducing the gas supply amount) is performed, and safety can be ensured (a process for reducing the gas supply amount). Step S4: YES, step S6). Normally, this treatment adjusts the gas supply amount to an appropriate value, so that the flame does not squeeze out again. However, if the object to be heated 32 is displaced and the positions of the stove burner 10 and the object to be heated 32 are changed, the flame may protrude again even after the gas supply amount is adjusted to an appropriate value (step S2, step 2). S4: NO). In the above cooking process, if the flame squeezes out again after adjusting the gas supply amount to an appropriate value, only the notification of the flame squeeze out is given and the gas supply amount is not adjusted (step S8: NO, step S10). ). Further, even if a predetermined time has not passed since the notification of the outflow of the flame, the gas supply amount is not adjusted (step S12: NO). As described above, once the gas supply amount is adjusted to an appropriate value, the cookability can be improved by not adjusting the gas supply amount immediately even if the flame protrusion is detected.

Further, in the above-mentioned thermal power adjustment process, if the flame protrusion is not eliminated even after a lapse of a predetermined time after notifying the flame protrusion (step S12: NO), after the gas supply amount has been adjusted to an appropriate value once. Even if there is, adjust the gas supply amount again (decrease the gas supply amount). It is possible to prevent the flame from sticking out for a long time and ensure high safety. The predetermined time is set to a fixed value of 1 to 5 minutes, and is set to 3 minutes as an example. The predetermined time is stored in the memory 120.

In the above heat adjustment treatment, an example has been described in which the gas supply amount is reduced when the flame protrusion is detected again after the flame protrusion is notified and when a predetermined time has elapsed from the notification. However, if the flame protrusion is detected again after the flame protrusion is notified, it is not necessary to adjust the gas supply amount regardless of the time from the notification. That is, the process of step S12 in FIG. 4 may be omitted. Since the gas supply amount has already been adjusted to an appropriate value when the first flame protrusion is detected, a certain level of safety can be ensured without reducing the gas supply amount again.

Although specific examples of the disclosed techniques have been described in detail in the present specification, these are merely examples and do not limit the scope of claims. The techniques described in the claims include various modifications and modifications of the specific examples illustrated above. In addition, the technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing.

2: Heat cooker 10: Burner 32: Object to be heated 80: Camera (contour detecting means, flame detecting means)
90: Notification means 110: Control means

Claims (2)

A burner that uses gas to heat the object to be heated,
A control means that adjusts the gas supply amount to control the thermal power of the burner,
Contour detection means for detecting the contour of the object to be heated from above the object to be heated,
A flame detecting means for detecting whether or not a flame protrudes from above the object to be heated to the outside of the contour.
Notification means and
Is equipped with
The control means is
When the flame detecting means detects that the flame protrudes outside the contour, the amount of gas supplied is reduced so that the outer edge of the flame is located inside the contour.
When the flame detecting means again detects that the flame protrudes outside the contour after lowering the gas supply amount to position the outer edge of the flame inside the contour, the gas supply amount is not lowered. , A heating cooker that notifies the notification means of the outflow of flames. According to claim 1, when the flame continues to protrude even after a predetermined time has elapsed from the notification by the notification means, the control means reduces the gas supply amount so that the outer edge of the flame is located inside the contour. The cooker described.

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