JP6934329B2 - Cooker - Google Patents

Description

The techniques disclosed herein relate to cookers.

In Patent Document 1, a heating object such as a pot or a frying pan can be placed, and a heating unit that heats the heating object by using the heat of burning fuel and a state around the heating unit are described. A heating cooker including a state detection unit for detecting and a control unit is disclosed. Based on the state detected by the state detection unit, the control unit receives an object (for example, a human body, clothes, etc.) different from the object to be heated within a predetermined detection range around the heating unit during the operation of the heating unit. When it is determined that it has invaded, control is performed to reduce the thermal power of the heating unit. By performing such control, it is possible to suppress the occurrence of a situation in which the flame of the heating unit ignites an object that has entered the detection range.

JP-A-2015-230148

For example, the user does not place the pot on the heating part, but cooks the ingredients directly with the flame of the heating part, or cooks the food while shaking the pot intentionally away from the heating part (especially). There are cases where it is desired to perform so-called specific high-temperature cooking, such as pan-shaking cooking. When performing such specific high-temperature cooking, the user may intentionally invade an object such as a hand or a foodstuff into a predetermined detection range around the heating unit. However, in the technique of Patent Document 1, if an object such as a hand or a food material invades within the detection range, the heating power of the heating portion is reduced regardless of whether or not the user is performing the above-mentioned specific high-temperature cooking. , The user may not be able to properly perform specific high temperature cooking.

The present specification provides a technique capable of allowing a user to appropriately perform a specific high-temperature cooking when the user wishes to perform the specific high-temperature cooking while suppressing ignition of an object or the like.

In the heating cooker disclosed in the present specification, an object to be heated can be placed, and a heating unit that heats the object to be heated by using the heat obtained by burning the fuel and the object to be heated are placed on the heating unit. An object detection unit that detects that an object is placed, a state detection unit that detects the state around the heating unit, and the heating unit in one of a normal mode and a specific mode. It includes a control unit that selectively operates in the operation mode. While the heating unit is being operated in the normal mode, the control unit is operating the heating unit, and in a situation where the object detection unit detects the heating object, the control unit said. Based on the state detected by the state detection unit, an object different from the heating target has entered the detection range around the heating unit during the operation of the heating unit, and the flame of the heating unit is heated. wherein when an abnormal condition comprising a that protrudes from the periphery, at least one state of the heating object is determined to have occurred, Ri down the heating power of the heating unit, the heating unit in the during operation, when the heating object by said object detecting unit is not detected, the regardless of whether or not an abnormal condition occurs, Ri down the heating power of the heating unit, the identifying the heating unit While operating in the mode, based on the state detected by the state detection unit in the situation where the heating object is being detected by the object detection unit while the heating unit is operating. When it is determined that the abnormal state has occurred, the heating power of the heating unit is reduced, and when the object detection unit does not detect the heating object during the operation of the heating unit, the abnormality It is configured to maintain the thermal power of the heating unit regardless of whether or not a state has occurred .

According to this configuration, while the heating unit operates in the normal mode, the thermal power of the heating unit is determined when an abnormal state is detected in a situation where an object to be heated placed on the heating unit is detected. when the Ru down together when heating the object to be placed on the heating unit during the operation of the heating part is not detected, Ru down the heating power of the heating unit. Therefore, when the heating unit operates in the normal mode, ignition of an object (for example, a human body, clothes, etc.) can be appropriately suppressed. Also, while the heating unit is operated in a particular mode, that down the heating power of the heating unit if the abnormal state in a situation where heating object placed on the heating portion is detected is determined to be occurring but when the heating object is placed on the heating unit during the operation of the heating part is not detected, regardless of whether the state, have a focused firepower of the heating unit. Therefore, while the heating unit operates in the specific mode, the user desires to perform specific high-temperature cooking (direct-fire cooking, pan-shaking cooking, etc.) in which the object to be heated is cooked without being placed on the heating unit. In this case, even if an object such as a user's hand or food is intentionally brought close to the heating part, the heating power of the heating part is not reduced, so that the user can appropriately perform specific high-temperature cooking. can. On the other hand, even while the heating unit is operating in the specific mode, when the object to be heated is placed on the heating unit for cooking, the heating power of the heating unit is increased when an abnormal state occurs. Since it can be squeezed, it is possible to appropriately suppress ignition of an object that approaches the heating portion against the user's will. Therefore, according to the above-mentioned cooking cooker, if the user wishes to perform the specific high-temperature cooking while suppressing the ignition of the object, the user can appropriately perform the specific high-temperature cooking.

The control unit determines that the abnormal state has occurred while the heating unit is being operated in the specific mode, as compared with the case where the heating unit is being operated in the normal mode. The conditions may be relaxed.

When the user operates the heating unit in a specific mode and the object to be heated is placed on the heating unit for cooking, cooking in which the object to be heated is heated with high heat (for example, cooking in which the object to be heated is boiled over high heat, etc.) ) May be desired to do. During such cooking, the user is aware that he / she is using the heating part with high heat, so there is a possibility that an object (human body, clothes, etc.) may suddenly approach the heating part. Is relatively low. According to the above configuration, while the heating unit is operating in the specific mode, the condition for determining that an abnormal state is occurring is relaxed as compared with the time when the heating unit is operated in the normal mode. When it is unlikely that the user unexpectedly brings an object (human body, clothes, etc.) close to the heating part, the user's cooking convenience is ensured by suppressing the heating power of the heating part from being excessively throttled. be able to.

A perspective view showing a state in which the cooking cooker 2 is viewed from the front side to the back side. An explanatory cross-sectional view showing the periphery of the camera 80. The block diagram which shows the control structure of a heating cooker 2. A flowchart showing a thermal power adjustment process. The figure which shows the detection range 130, 150 in a normal mode and a high temperature mode respectively. The figure which shows the state of the flame which is judged to be the state of overflowing a flame in each of a normal mode and a high temperature mode.

(Example)
(Structure of cooking cooker 2)
The heating cooker 2 will be described with reference to FIGS. 1 and 2. The heating cooker 2 is a gas-combustion type built-in stove used by incorporating it into a system kitchen. The heating 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, 8c that support cooking containers such as a pot and a frying pan, which are objects to be heated, and corresponding to the respective trivets 8a, 8b, 8c. Three stove burners 10a, 10b, 10c that heat the object to be heated supported by the trivets 8a, 8b, 8c, and sensors 12a, 12b, 12c provided corresponding to the respective stove burners 10a, 10b, 10c. And are provided. 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 for adjusting the amount of gas supplied to the stove burner 10a. The stove burner 10a is ignited by operating an igniter (not shown) in a state where gas is 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. Then, 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 burners 10a. The main body 4 has a grill storage 20 provided inside the main body 4 for storing foodstuffs, a grill door 22 arranged on the front surface 4a of the main body 4 to open and close the grill storage 20, and a grill door 22 on the front surface 4a of the main body 4. It is provided with a stove operation unit 24 provided on the right side 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 20a (see FIG. 3) for heating the foodstuffs housed in the grill storage 20 is provided. In the heating 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.

A transmission window 90 is formed on the top plate 6 of the heating cooker 2. The transparent window 90 is formed on the front side (user side) of the main body 4. Further, the transmission window 90 is formed at the central portion of the main body 4 in the left-right direction. The transmission window 90 is formed between the left stove burner 10a and the right stove burner 10b. Transparent glass is arranged in the transparent window 90.

As shown in FIG. 2, a camera 80 is arranged below the transmission window 90. The camera 80 images the upper part of the top plate 6 from below the top plate 6 through the transmission window 90. The camera 80 can take an image of the upper part of the cooking device 2. Further, the camera 80 is arranged on the front side (user side) of the main body 4. The camera 80 images the upper part of the top plate 6 from the front side to the back side of the main body 4. Further, the camera 80 images the upper part of the top plate 6 with the periphery of the stove burners 10a, 10b, and 10c within the imaging range. The camera 80 continuously images the upper part of the top plate 6.

A liquid crystal display 84 is arranged next to the camera 80. The display unit 84 is arranged on the back side of the main body 4 with respect to the camera 80. The display unit 84 displays the operating states of the stove burners 10a, 10b, 10c and the grill burner 20a.

As shown in FIG. 1, sensors 12a, 12b, and 12c are provided corresponding to the stove burners 10a, 10b, and 10c. The sensors 12a, 12b, and 12c detect the presence of the object to be heated and also detect the temperature of the object to be heated. When the heating target (for example, a pan or a frying pan) is placed on the stove burners 10a, 10b, 10c, the sensors 12a, 12b, and 12c can detect the heating target. When the object to be heated (pot or frying pan) is placed on the stove burners 10a, 10b, 10c, the sensors 12a, 12b, 12c are pressed by the object to be heated. The sensors 12a, 12b, 12c detect that the object to be heated is placed on the stove burners 10a, 10b, 10c when pressed by the object to be heated. When the object to be heated is not placed on the stove burners 10a, 10b and 10c, the sensors 12a, 12b and 12c are 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, the heating amount control units 42a, 42b, and 42c are surrounded by LED light emitting units 43a, 43b, and 43c, which can emit blue or red light, respectively. The heating amount operating unit 42a is an operating unit for igniting and extinguishing the stove burner 10a and adjusting the heating amount of the stove burner 10a. The heating amount control unit 42a is an alternate type switch. When the user executes an operation for moving the heating amount operating unit 42a from the fire extinguishing position to the ignition position (hereinafter referred to as “ignition operation”), the stove burner 10a is ignited, and the heating amount operating unit 42a 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 10a is extinguished. The ignition position is a position where the front surface of the heating amount operating unit 42a 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 42a is housed in the main body 4. be. Further, the user operates the heating amount operating unit 42a clockwise or counterclockwise while the heating amount operating unit 42a is located at the ignition position to heat the stove burner 10a (hereinafter, "heat power"). (Sometimes called) can be adjusted. The heating amount operating units 42b and 42c have the same structure as the heating amount operating unit 42a.

The panel operation unit 44 includes a display unit 46, a heating temperature operation unit 48a, 48b, an automatic cooking selection operation unit 50a, 50b, a mode operation unit 52a, 52b, 52c, a recipe selection operation unit 54, and a cooking state operation. A unit 56 is provided. The display unit 46 displays the operating states of the stove burners 10a, 10b, and 10c. The heating temperature operation unit 48a 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 10a. The mode operation unit 52a is an operation unit for setting the operation mode of the stove burner 10a. The stove burner 10a can operate in one of the normal mode and the high temperature mode. The normal mode is an operation mode for the user to normally operate the stove burner 10a to perform cooking. In the high temperature mode, for example, the user cooks the ingredients by directly roasting the ingredients with the flame of the stove, or cooking the ingredients while intentionally shaking the pot or the like away from the stove 10a (in particular, it is often fried). This is a mode for performing so-called specific high-temperature cooking such as pan-shaking cooking. The user can set the operation mode of the stove burner 10a to one of the normal mode and the high temperature mode by operating the mode operation unit 52a. The processing performed in each operation mode will be described in detail later. The automatic cooking selection operation unit 50a is an operation unit for selecting cooking in the automatic cooking mode using the stove burner 10a. The heating temperature operation unit 48b, the automatic cooking selection operation unit 50b, and the mode operation unit 52b are the heating temperature operation unit 48a, the automatic cooking selection operation unit 50a, and the mode, respectively, except that they are operation units corresponding to the stove burner 10b. It has the same function as the operation unit 52a. 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 foodstuff to be cooked in the automatic cooking mode, for example, the degree of baking. The mode operation unit 52c has the same function as the mode operation unit 52a except that it is an operation unit corresponding to the stove burner 10c.

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 ignites and extinguishes the grill burner 20a (see FIG. 3) and adjusts the heating amount of the grill burner 20a (hereinafter, may be referred to as "heat power"). be able to. The structure of the heating amount operating unit 60 is the same as that of the heating amount operating unit 42a 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 20a 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 50a and the recipe selection operation unit 54, respectively, except that they are operation units corresponding to the grill burner 20a. , Has the same function as the cooking state operation unit 56.

Subsequently, the control configuration of the heating cooker 2 will be described with reference to FIG. In addition, in FIG. 3, in order to make the explanation easy to understand, the stove burner 10b, 10c, the sensor 12b, 12c, the heating amount operation unit 42b, 42c, the LED light emitting unit 43b, 43c, the heating temperature operation unit 48b, the automatic cooking selection operation. The illustration of the unit 50b and the mode operation units 52b and 52c is omitted. Further, in the following, the description of the configuration described with reference to FIG. 1 will be omitted.

The cooking cooker 2 includes a control unit 110 and a memory 120. The control unit 110 controls the operation of each component of the cooking cooker 2. The control unit 110 executes various processes (for example, the thermal power adjustment process of FIG. 4) 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.

(Heat power adjustment process)
Subsequently, with reference to FIG. 4, the thermal power adjustment process executed by the control unit 110 of the cooking cooker 2 will be described. In the thermal power adjustment process, an object such as a user's clothes or a hand has entered the predetermined detection range of the operating stove burners 10a, 10b, and 10c, and a flame overflow state occurs in the stove burners 10a, 10b, and 10c. This is a process for detecting that (that is, there is a high risk of ignition of an object) and reducing the thermal power of the stove burners 10a, 10b, and 10c (that is, reducing or extinguishing the thermal power). Here, the flame overflow state is a state in which the flame of the operating stove burner 10a protrudes from the periphery of the object to be heated heated on the stove burner 10a (see FIG. 6). When the ignition operation is performed in any of the heating amount control units 42a, 42b, and 42c 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. Therefore, the process of FIG. 4 is started. That is, the control unit 110 executes the process of FIG. 4 for each of the ignited stove burners. Hereinafter, an example will be described in which the stove burner 10a is ignited and the control unit 110 executes the process of FIG. 4 in order to adjust the thermal power of the stove burner 10a. However, even when the stove burners 10b and 10c are ignited, the control unit 110 executes the same process.

In S10, the control unit 110 determines whether or not the operation mode of the stove burner 10a is the high temperature mode. As described above, the operation mode of the stove burner 10a is preset to one of the normal mode and the high temperature mode by the operation of the mode operation unit 52a by the user. If the operation mode of the stove burner 10a at this point is the normal mode, the control unit 110 determines NO in S10 and proceeds to S20. On the other hand, when the operation mode of the stove burner 10a at this time is the high temperature mode, the control unit 110 determines YES in S10 and proceeds to S30.

In S20 (that is, the normal mode), the control unit 110 determines whether or not the object to be heated is placed on the stove burner 10a. When the sensor 12a detects the object to be heated, the control unit 110 determines YES in S20 and proceeds to S22. On the other hand, if the sensor 12a does not detect the object to be heated, the control unit 110 determines NO in S20 and proceeds to S28.

In S22, the control unit 110 determines whether or not an object (for example, a user's hand or clothes) different from the object to be heated has invaded within a predetermined detection range around the stove burner 10a. The detection range is a predetermined area provided around the stove burner 10a, and is a predetermined area where ignition or the like may occur if an object different from the object to be heated suddenly invades within this range. In this embodiment, the size of the detection range is predetermined according to the operation mode of the stove burner 10a. As shown in FIG. 5, in this embodiment, when the operation mode of the stove burner 10a is the normal mode, a relatively large detection range 130 is set. When the user operates the stove burner 10a in the normal mode, the user may not be aware that the object to be heated is being heated, and it is likely that a situation in which a hand or the like is suddenly brought close to the stove burner 10a is likely to occur. Because there is sex. In S22, the control unit 110 determines whether or not an object other than the object to be heated has invaded the detection range 130 (see FIG. 5) based on the image captured by the camera 80. For example, as shown in FIG. 5, when the camera 80 takes an image of an object 140 such as a user's clothes invading within the detection range 130, the control unit 110 determines YES in S22 and S28. Proceed to. On the other hand, when the camera 80 is capturing an image in which no object exists within the detection range 130, the control unit 110 determines NO in S22 and proceeds to S24.

In S24, the control unit 110 determines whether or not a flame overflow state has occurred in the operating stove burner 10a. Specifically, in S24, the control unit 110 determines whether or not a flame overflow state has occurred based on the image captured by the camera 80. In this embodiment, the criteria for determining that the flame overflow state has occurred differs depending on the operation mode of the stove burner 10a. When the operation mode of the stove burner 10a is the normal mode, as shown in the flame 160 of FIG. 6, a flame overflow state occurs even if the flame protrudes even a little from the periphery of the object to be heated. It is judged that it is. Similar to the above, when the user operates the stove burner 10a in the normal mode, the user may be less aware of the risk that the stove burner 10a may be flooded with flames, and unexpectedly. This is because there is a possibility that a situation in which a hand or the like is brought close to the stove burner 10a is likely to occur. Therefore, when the captured image of the camera 80 captures a state in which the flame protrudes from the object to be heated even a little as in the flame 160 of FIG. 6, the control unit 110 determines YES in S24. Proceed to S28. On the other hand, when the captured image of the camera 80 captures a state in which the flame does not protrude from the object to be heated, the control unit 110 determines NO in S24 and proceeds to S26.

In S26, the control unit 110 maintains the thermal power of the stove burner 10a. That is, the control unit 110 does not change the thermal power of the stove burner 10a. After finishing S26, the process returns to S10.

In S28, the control unit 110 throttles the thermal power of the stove burner 10a. Specifically, in S28, the control unit 110 reduces the thermal power of the stove burner 10a when the thermal power of the stove burner 10a at this time is greater than the predetermined minimum thermal power. On the other hand, when the thermal power of the stove burner 10a at this time is a predetermined minimum thermal power, the control unit 110 extinguishes the stove burner 10a.

In the following S29, the control unit 110 determines whether or not the stove burner 10a is still in operation. When the thermal power is reduced in S28 above, the stove burner 10a is still in operation. In this case, the control unit 110 determines YES in S29 and returns to S10. On the other hand, when the stove burner 10a is extinguished in S28 above, the stove burner 10a is no longer in operation. In this case, the control unit 110 determines NO in S29 and ends the process of FIG.

Even in S30 (that is, in the high temperature mode), the control unit 110 determines whether or not the object to be heated is placed on the stove burner 10a. When the sensor 12a detects the object to be heated, the control unit 110 determines YES in S30 and proceeds to S32. On the other hand, if the sensor 12a does not detect the object to be heated, the control unit 110 determines NO in S30 and proceeds to S36.

In S32, the control unit 110 determines whether or not an object (user's hand, clothes, etc.) has invaded within a predetermined detection range around the stove burner 10a. As described above, the size of the detection range is predetermined according to the operation mode of the stove burner 10a. As shown in FIG. 5, in this embodiment, when the operation mode of the stove burner 10a is the high temperature mode, a relatively small detection range 150 is set. When the user operates the stove burner 10a in the high temperature mode, it is highly likely that he / she desires to cook the object to be heated by heating it with high heat (for example, cooking by boiling it over high heat). This is because it is highly likely that the user is aware that the stove burner 10a is being used with high heat during such cooking, and it is unlikely that an object is unexpectedly brought close to the stove burner 10a. In S32, the control unit 110 determines whether or not an object other than the object to be heated has invaded the detection range 150 (see FIG. 5) based on the image captured by the camera 80. When the camera 80 takes an image of an object such as a user's clothes invading the detection range 150, the control unit 110 determines YES in S32 and proceeds to S38. On the other hand, when the camera 80 is capturing an image in which no object exists within the detection range 150, the control unit 110 determines NO in S32 and proceeds to S34.

In S34, the control unit 110 determines whether or not a flame overflow state has occurred in the operating stove burner 10a. As described above, in the present embodiment, the criteria for determining that the flame overflow state has occurred differs depending on the operation mode of the stove burner 10a. When the operation mode of the stove burner 10a is the high temperature mode, as shown in the flame 170 of FIG. 6, when a relatively large amount of flame protrudes from the periphery of the object to be heated, a flame overflow state occurs. It is judged that there is. That is, in the high temperature mode, when the flame slightly protrudes from the periphery of the object to be heated as in the flame 160 in FIG. 6, it is not determined that the flame overflow state has occurred. Similar to the above, when the user operates the stove burner 10a in the high temperature mode, it is highly likely that the user is aware that he / she is using the stove burner 10a with high heat, and suddenly stoves the object. This is because it is unlikely that a situation of approaching the burner 10a will occur. Therefore, when the captured image of the camera 80 captures a state in which a relatively large amount of flame protrudes from the object to be heated, as in the flame 170 of FIG. 6, the control unit 110 determines YES in S34. , Proceed to S38. On the other hand, when the image captured by the camera 80 captures a state in which the flame does not protrude from the object to be heated or slightly protrudes (see flame 160 in FIG. 6), the control unit 110 is set to S34. Judge NO and proceed to S36.

In S36, the control unit 110 maintains the thermal power of the stove burner 10a. That is, the control unit 110 does not change the thermal power of the stove burner 10a. After finishing S36, the process returns to S10.

In S38, the control unit 110 throttles the thermal power of the stove burner 10a. The content of S38 is almost the same as that of S28.

In the following S39, the control unit 110 determines whether or not the stove burner 10a is still in operation. When the thermal power is reduced in S38 above, the stove burner 10a is still in operation. In this case, the control unit 110 determines YES in S39 and returns to S10. On the other hand, when the stove burner 10a is extinguished in S38, the stove burner 10a is no longer in operation. In this case, the control unit 110 determines NO in S39 and ends the process of FIG.

The contents of the thermal power adjustment process executed by the control unit 110 when the stove burner 10a is ignited have been described above. Although not shown in FIG. 4, when a fire extinguishing operation is performed in the heating amount operation unit 42a during the execution of the process of FIG. 4 and the stove burner 10a is extinguished, the control unit 110 is in which of S10 to S39. Even if the step processing is being executed, the processing of FIG. 4 is forcibly terminated.

The configuration and operation of the heating cooker 2 of this embodiment have been described above. In this embodiment, while the stove burner 10a operates in the normal mode, the object to be heated placed on the stove burner 10a is detected (YES in S20 of FIG. 4), and the detection range 130 is reached. When it is determined that an object has invaded or a flame overflowing state has occurred (YES in S22 or S24), the heating power of the stove burner 10a is reduced (S28), and the heating object placed on the stove burner 10a is placed. When is not detected (NO in S20), the heating power of the stove burner 10a is reduced (S28). Therefore, when the stove burner 10a operates in the normal mode, it is possible to appropriately suppress ignition of an object (for example, a human body, clothes, etc.). Further, while the stove burner 10a operates in the high temperature mode, the object to be heated placed on the stove burner 10a is detected (YES in S30), and the object invades the detection range 150 or the flame overflows. When it is determined that is occurring (YES in S32 or S34), the thermal power of the stove burner 10a is reduced, but when the object to be heated placed on the stove burner 10a is not detected (NO in S30). Does not throttle the thermal power of the stove burner 10a regardless of whether or not an object has entered the detection range 150 and whether or not a flame overflow state has occurred. Therefore, while the stove burner 10a operates in the high temperature mode, the user performs specific high temperature cooking (direct fire cooking, pot shaking cooking, etc.) in which the object to be heated is cooked without being placed on the stove burner 10a. If desired, even if an object such as a user's hand or food is intentionally brought close to the stove burner 10a, the heating power of the stove burner 10a is not reduced, so that the user can appropriately perform specific high-temperature cooking. Can be done. On the other hand, even while the stove burner 10a is operating in the high temperature mode, when the object to be heated is placed on the stove burner 10a for cooking, an object invades or a state of overflowing flame occurs. In this case, the thermal power of the stove burner 10a can be reduced, so that it is possible to appropriately suppress ignition of an object that is brought close to the stove burner 10a against the will of the user. Therefore, according to the heating cooker 2 of the present embodiment, when the user wishes to perform the specific high-temperature cooking while suppressing the ignition of the object, the user can appropriately perform the specific high-temperature cooking. can.

In this embodiment, as shown in FIG. 5, the detection range 150 when the stove burner 10a operates in the high temperature mode is smaller than the detection range 130 when the stove burner 10a operates in the normal mode. Further, as shown in FIG. 6, the flame 170 determined to be in a flame overflow state when the stove burner 10a operates in the high temperature mode is a flame determined to be in a flame overflow state when the stove burner 10a operates in the normal mode. It protrudes more from the object to be heated than 160. As described above, in this embodiment, while the stove burner 10a operates in the high temperature mode, the condition that the object is determined to have entered the detection range and the flame overflow occur as compared with the time when the stove burner 10a operates in the normal mode. The conditions for judging that it is being done have been relaxed. When the user operates the stove burner 10a in the high temperature mode and the object to be heated is placed on the stove burner 10a for cooking, the object to be heated is heated with high heat (for example, boiled with high heat). You may want to cook). During such cooking, the user recognizes that he / she is using the stove burner 10a with high heat, so that an object (human body, clothes, etc.) suddenly approaches the stove burner 10a. The possibility is relatively low. According to the above configuration, while the stove burner 10a is operating in the high temperature mode, the condition for determining that an abnormal state is occurring is relaxed as compared with the time when the stove burner 10a is operated in the normal mode. When it is unlikely that the user unexpectedly brings an object (human body, clothes, etc.) close to the stove burner 10a, the convenience of cooking by the user is improved by suppressing the heating power of the stove burner 10a from being excessively reduced. Can be secured.

The stove burners 10a, 10b, and 10c are examples of "heating parts". The sensors 12a, 12b, and 12c are examples of the "object detection unit". The camera 80 is an example of a “state detection unit”. The high temperature mode is an example of the "specific mode". The processing of S28 after the determination of YES in S20 of FIG. 4 and YES in S22 or S24, and the processing of S38 after the determination of YES in S30 and YES in S32 or S34 are "first thermal power drawing processing". Is an example. The process of S28 after the determination of NO in S20 is an example of the "second thermal power drawing process". An example of an "abnormal state" is that an object has entered the detection range and a flame overflowing state has occurred.

Although each embodiment has been described in detail above, 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.

(Modification 1) In the above embodiment, the control unit 110 determines whether or not an object has invaded within a predetermined detection range (S22 and S32 in FIG. 4) and whether or not a flame overflow state has occurred. (S24, S34), both are judged. Not limited to this, the control unit 110 may determine only one of whether or not an object has invaded within a predetermined detection range and whether or not a flame overflowing state has occurred. That is, one of the determinations of S22 and S32 and the determination of S24 and S34 in FIG. 4 may be omitted.

(Modification 2) In the above embodiment, the control unit 110 determines whether or not an object has entered the detection range and whether or not a flame overflow state has occurred based on the captured image of the camera 80. doing. However, the element for detecting the surrounding state of the stove burner 10a is not limited to the camera 80, and any detection element may be used. For example, an infrared sensor may be used instead of the camera 80 as a detection element that serves as a reference for determining whether or not an object has entered the detection range. The control unit 110 may determine whether or not an object has entered the detection range based on the detection value of the infrared sensor. Further, for example, an ultraviolet sensor may be used instead of the camera 80 as a detection element that serves as a reference for determining whether or not a flame overflow state has occurred in the stove burner 10a. The control unit 110 may determine whether or not a flame overflow state has occurred based on the detected value of the ultraviolet sensor. The infrared sensor and the ultraviolet sensor in this modified example are also examples of the "state detection unit".

The technical elements described herein or in the drawings exhibit their technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the techniques illustrated in the present specification or drawings can achieve a plurality of purposes at the same time, and achieving one of the purposes itself has technical usefulness.

2: Cooking cooker 4: Main body 4a: Front surface 6: Top plate 8a: Gotoku 8b: Gotoku 8c: Gotoku 10a: Stove burner 10b: Stove burner 10c: Stove burner 12a: Sensor 12b: Sensor 12c: Sensor 20: Grill storage 20a : Grill burner 22: Grill door 24: Stove operation unit 26: Grill operation unit 40: Power switch 42a: Heating amount operation unit 42b: Heating amount operation unit 42c: Heating amount operation unit 43a: LED light emitting unit 43b: LED light emitting unit 43c: LED light emitting unit 44: Panel operation unit 46: Display unit 48a: Heating temperature operation unit 48b: Heating temperature operation unit 50a: Automatic cooking selection operation unit 50b: Automatic cooking selection operation unit 52a: Mode operation unit 52b: Mode operation unit 52c: Mode operation unit 54: Recipe selection operation unit 56: Cooking state operation unit 60: Heating amount operation unit 61: LED light emitting unit 62: Panel operation unit 64: Display unit 66: Automatic cooking selection operation unit 68: Recipe selection operation unit 70: Cooking state operation unit 80: Camera 84: Display unit 90: Transparent window 110: Control unit 120: Memory 130: Detection range 140: Object 150: Detection range 160: Flame 170: Flame

Claims (2)

It ’s a cooker,
A heating unit on which the object to be heated can be placed and the object to be heated is heated by using the heat obtained by burning the fuel.
An object detection unit that detects that the heating object is placed on the heating unit, and an object detection unit.
A state detection unit that detects the state around the heating unit, and a state detection unit.
The heating unit is provided with a control unit that selectively operates the heating unit in one of a normal mode and a specific mode.
The control unit
While operating the heating unit in the normal mode,
In a situation where the object to be heated is detected by the object detection unit during the operation of the heating unit, the heating is performed during the operation of the heating unit based on the state detected by the state detection unit. At least one of the fact that an object different from the object to be heated has entered the detection range around the portion and that the flame of the heating portion protrudes from the periphery of the object to be heated during heating. If an abnormal condition, including a condition is determined to have occurred, Ri down the heating power of the heating unit,
During operation of the heating unit, when the heating object by said object detecting unit is not detected, regardless of whether or not the abnormal condition occurs, Ri down the heating power of the heating unit,
While operating the heating unit in the specific mode,
It is said that the abnormal state is generated based on the state detected by the state detection unit in the situation where the heating object is detected by the object detection unit while the heating unit is in operation. When it is judged, the heating power of the heating part is reduced.
When the object to be heated is not detected by the object detection unit during the operation of the heating unit, the heating power of the heating unit is maintained regardless of whether or not the abnormal state has occurred. ing,
Cooker. The control unit
While the heating unit is operated in the specific mode, the condition for determining that the abnormal state is generated is relaxed as compared with the case where the heating unit is operated in the normal mode. The heating cooker according to claim 1.

Images