JP2018204888A - Heating cooker - Google Patents

Abstract

To provide a technology enabling a user to cook properly according to the size of a detection range and the situation of a heating unit, and capable of properly preventing an object from catching fire.SOLUTION: A heating cooker comprises a heating unit configured to heat an object to be heated by utilizing heat that is obtained by combusting fuel, a state detection unit configured to detect a state around the heating unit, and a control unit. The control unit is configured to, when it is determined that based on the state detected by the state detection unit, during operation of the heating unit, an object different from the object to be heated enters within a detection range around the heating unit, reduce fire power of the operating heating unit, and according to the fire power of the operating heating unit, change the size of the detection range.SELECTED DRAWING: Figure 4

Description

  The technology disclosed in the present specification relates to a heating cooker.

  Patent Document 1 includes a heating cooker including a heating unit that heats an object to be heated using heat obtained by burning fuel, a state detection unit that detects a state around the heating unit, and a control unit. It is disclosed. Based on the state detected by the state detection unit, the control unit detects that an object (for example, a human body or clothes) different from the heating target is within a predetermined detection range around the heating unit during the operation of the heating unit. When it is determined that the heat has entered, control is performed to reduce the heating power of the heating unit. By performing such control, the occurrence of a situation where the flame of the heating unit ignites on an object that has entered the detection range is suppressed.

Japanese Patent Laid-Open No. 2015-230148

  The size of the range where the flame may ignite the object approaching the heating unit is the heating power of the heating unit, the flame overflowing state (that is, the state where the flame protrudes from the surroundings of the heating object heated on the heating unit) ) Varies depending on the situation of the heating part. However, in the cooking device of Patent Document 1, the detection range is predetermined. Therefore, in the heating cooker of Patent Document 1, the size of the detection range and the situation of the heating unit do not match, and there is a possibility that a situation in which the user cannot properly cook or a situation in which ignition to an object cannot be suppressed appropriately. There is.

  In the present specification, a technique is provided in which the size of the detection range and the state of the heating unit are adapted to allow the user to appropriately cook and to appropriately suppress the ignition of the object.

  One heating cooker disclosed in this specification includes a heating unit that heats an object to be heated using heat obtained by burning fuel, a state detection unit that detects a state around the heating unit, and a control unit. And comprising. Based on the state detected by the state detection unit, the control unit determines that an object different from the heating target has entered the detection range around the heating unit during the operation of the heating unit. In this case, the heating power of the heating unit during operation is reduced, and the size of the detection range is changed according to the heating power of the heating unit during operation.

  According to this configuration, the heating cooker changes the size of the detection range according to the heating power of the heating unit in operation. Therefore, for example, by increasing the detection range when the heating power of the heating unit is relatively large, it is possible to appropriately suppress the ignition of an object (for example, a human body or clothes) even in a situation where the heating power is large. Further, for example, when the heating power of the heating unit is relatively small, the detection range is reduced, so that the object (human body or the like) is relatively Even in a situation where the vicinity can be approached, the user can appropriately cook by not excessively reducing the thermal power. Therefore, according to said heating cooker, the magnitude | size of a detection range and the condition of a heating part can be adapted, a user can be cooked appropriately, and the ignition to an object can be suppressed appropriately.

  Squeezing the heating power of the heating unit may include reducing the heating power of the heating unit and extinguishing the heating unit. The control unit switches between reducing the heating power of the heating unit or extinguishing the heating unit according to the heating power of the heating unit at a time point when it is determined that the object has entered the detection range. May be.

  According to this configuration, the heating unit can be appropriately operated according to the heating power of the heating unit at the time when an object enters the detection range.

  Squeezing the heating power of the heating unit may include reducing the heating power of the heating unit. In a situation where the heating power of the heating unit at the time when it is determined that the object has entered the detection range, the control unit reduces the heating power of the heating unit and the heating power after the decrease The size of the detection range may be changed according to the above.

  According to this configuration, the heating cooker can apply the detection range corresponding to the reduced thermal power after the object has entered the detection range and reduced the thermal power. Therefore, user convenience can be ensured by appropriately applying the detection range according to the situation of the heating unit.

  You may further provide the input part for a user to input an instruction | indication. The control unit may change the level of the detection range corresponding to the heating power of the heating unit in accordance with an instruction input to the input unit.

  According to this configuration, the level of the detection range corresponding to the heating power of the heating unit can be set to a level desired by the user. Since a detection range of a desired level can be applied for each user, a cooking device that is easy to use for each user can be realized.

  Another heating cooker disclosed in the present specification includes a heating unit that heats an object to be heated using heat obtained by burning fuel, a state detection unit that detects a state around the heating unit, A control unit. Based on the state detected by the state detection unit, the control unit determines that an object different from the heating target has entered the detection range around the heating unit during the operation of the heating unit. The heating target is heated on the heating unit by reducing the heating power of the heating unit during operation and based on the state detected by the state detection unit. It is determined whether or not a flame overflowing state that protrudes from the surroundings is generated, and it is determined that the flame overflowing state has occurred, and that the flame overflowing state has not occurred The size of the detection range is changed between the second case and the second case.

  According to this configuration, the heating cooker changes the size of the detection range depending on whether or not a flame overflow state occurs during the operation of the heating unit. Therefore, for example, by increasing the detection range when a flame overflow condition has occurred, it is possible to appropriately suppress the ignition of the object even in a situation where there is a relatively high possibility that the protruding flame will ignite the object. In addition, for example, by reducing the detection range when a flame overflow condition has not occurred, the object (human body, etc.) is not Even when approaching relatively close, the user can appropriately cook without excessively reducing the heating power. Therefore, according to said heating cooker, the magnitude | size of a detection range and the condition of a heating part can be adapted, a user can be cooked appropriately, and the ignition to an object can be suppressed appropriately.

  Squeezing the heating power of the heating unit may include reducing the heating power of the heating unit and extinguishing the heating unit. The control unit switches between reducing the heating power of the heating unit or extinguishing the heating unit according to the heating power of the heating unit at a time point when it is determined that the object has entered the detection range. May be.

  According to this configuration, the heating unit can be appropriately operated according to the heating power of the heating unit at the time when an object enters the detection range.

  Squeezing the heating power of the heating unit may include reducing the heating power of the heating unit. The control unit reduces the heating power of the heating unit in a situation where the heating power of the heating unit at a time point when it is determined that the object has entered the detection range is larger than a specific heating power. It may be further determined whether or not the flame overflow state has occurred in the heating unit, and the size of the detection range may be changed between the first case and the second case.

  According to this configuration, the heating cooker can apply the detection range according to the state of occurrence of the flame overflow state after the reduction of the thermal power after the object has entered the detection range and reduced the thermal power. Therefore, user convenience can be ensured by appropriately applying the detection range according to the situation of the heating unit.

  You may further provide the input part for a user to input an instruction | indication. The control unit may change the level of the detection range in the first case and the detection range in the second case in accordance with an instruction input to the input unit.

  According to this configuration, the level of the size of the detection range in each of the cases where the flame overflow state has occurred and the case where the flame overflow state has not occurred can be set to a level desired by the user. Since a detection range of a desired level can be applied for each user, a cooking device that is easy to use for each user can be realized.

The perspective view which shows a mode that the heating cooker 2 was seen toward the back | inner side from the near side. Cross-sectional explanatory drawing which shows the camera 80 periphery. The block diagram which shows the control structure of the heating cooker 2. FIG. The flowchart which shows the thermal-power adjustment process of 1st Example. The figure which shows the detection range when a thermal power is large in 1st Example. The figure which shows the detection range in case a thermal power is small in 1st Example. The figure which shows the detection level which can be set in 1st Example. The flowchart which shows the thermal-power adjustment process of 2nd Example. The figure which shows the detection range in case the flame overflow state has generate | occur | produced in 2nd Example. The figure which shows the detection range when the flame overflow state has not generate | occur | produced in 2nd Example. The figure which shows the detection level which can be set in 2nd Example.

(First embodiment)
(Configuration of heating cooker 2)
The heating cooker 2 will be described with reference to FIGS. 1 and 2. The heating cooker 2 is a gas-fired built-in stove that is used by being incorporated in 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 that is disposed on the upper portion of the main body 4 and is exposed to the counter top of the system kitchen. The top plate 6 is provided corresponding to three virtues 8a, 8b, 8c that support cooking containers such as pans and frying pans that are objects to be heated, and the respective five virtues 8a, 8b, 8c. Three cooker burners 10a, 10b, 10c for heating the object to be heated supported by the five virtues 8a, 8b, 8c, and sensors 12a, 12b, 12c provided corresponding to the respective burners 10a, 10b, 10c. And are provided. A gas supply path (not shown) is connected to each of the 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 gas supply to the stove burner 10a is stopped, so that the stove burner 10a is extinguished. The stove burners 10b and 10c have the same structure as the stove burner 10a. The main body 4 is provided inside the main body 4 to store the food, the grill door 22 disposed on the front surface 4 a of the main body 4 to open and close the grill storage 20, and the grill door 22 on the front surface 4 a of the main body 4. The stove operating section 24 provided on the right side of the main body 4 and the grill operating section 26 provided on the left side of the grill door 22 on the front surface 4a of the main body 4 are provided. In addition, a grill burner 20a (see FIG. 3) for heating food stored in the grill cabinet 20 is provided inside the grill cabinet 20. In the heating cooker 2, the front surface 4a of the main body 4 and the top surface of the top plate 6 constitute an outer surface exposed to the user.

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

  As shown in FIG. 2, a camera 80 is disposed below the transmission window 90. The camera 80 images from above the top plate 6 through the transmission window 90 from below the top plate 6. The camera 80 can capture an image above the cooking device 2. The camera 80 is arranged on the front side (user side) of the main body 4. The camera 80 images the top of the top plate 6 from the front side of the main body 4 toward the back side. Moreover, the camera 80 images the upper part of the top plate 6 in a state where the surroundings of the stove burners 10a, 10b, and 10c are in the imaging range. The camera 80 continuously images above the top plate 6.

  Next to the camera 80, a liquid crystal display unit 84 is disposed. The display unit 84 is disposed on the back side of the main body 4 with respect to the camera 80. On the display unit 84, the operating states of the respective burners 10a, 10b, 10c and the grill burner 20a are displayed.

  As shown in FIG. 1, sensors 12a, 12b, and 12c are provided corresponding to the respective burners 10a, 10b, and 10c. Sensor 12a, 12b, 12c detects the temperature of a heating target object while detecting presence of a heating target object. The sensors 12a, 12b, and 12c can detect the heating object when the heating object (for example, a pan or a frying pan) is disposed on the stove burners 10a, 10b, and 10c. When a heating object (a pan or a frying pan) is disposed on the stove burners 10a, 10b, and 10c, the sensors 12a, 12b, and 12c are pressed by the heating object. When the sensors 12a, 12b, and 12c are pressed by the object to be heated, the sensors 12a, 12b, and 12c detect that the object to be heated is disposed on the stove burners 10a, 10b, and 10c. When the heating object is not disposed 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 heating cooker 2, three heating amount operation units 42a, 42b, and 42c, and a panel operation unit 44. The heating amount operation units 42a, 42b, and 42c correspond to the burners 10a, 10b, and 10c, respectively. The heating amount operation units 42a, 42b, and 42c are surrounded by LED light emitting units 43a, 43b, and 43c that can emit blue or red light, respectively. The heating amount operation unit 42a is an operation unit for igniting and extinguishing the stove burner 10a and adjusting the heating amount of the stove burner 10a. The heating amount operation unit 42a is an alternate type switch. When an operation for moving the heating amount operation unit 42a from the fire extinguishing position to the ignition position (hereinafter referred to as “ignition operation”) is performed by the user, the stove burner 10a is ignited, and the user operates the heating amount operation unit 42a. When the operation for moving the engine from the ignition position to the fire extinguishing position (hereinafter, referred to as “fire extinguishing operation”) is performed, the stove burner 10a is extinguished. The ignition position is a position where the front surface of the heating amount operation unit 42 a protrudes forward from the front surface 4 a of the main body 4, and the fire extinguishing position is a position where the heating amount operation unit 42 a is accommodated in the main body 4. is there. In addition, the user operates the heating amount operation unit 42a clockwise or counterclockwise in a state where the heating amount operation unit 42a is positioned at the ignition position, so that the heating amount (hereinafter referred to as “thermal power”) Can be adjusted). The heating amount operation units 42b and 42c have the same structure as the heating amount operation unit 42a.

  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, level operation units 52a, 52b and 52c, a recipe selection operation unit 54, and a cooking state operation. Part 56. On the display unit 46, the operation state of each of the stove burners 10a, 10b, and 10c is displayed. The heating temperature operation part 48a is an operation part for setting the temperature (for example, 180 degreeC) of the heating target object heated by the stove burner 10a. The level operation part 52a is an operation part for setting the level (refer FIG. 7) of the magnitude | size of the detection range (refer code | symbol 130 of FIG. 5, FIG. 6) corresponding to the heating power of the stove burner 10a. The detection range and level will be described in detail later. The automatic cooking selection operation part 50a is an operation part for selecting cooking by the automatic cooking mode using the stove burner 10a. The heating temperature operation unit 48b, the automatic cooking selection operation unit 50b, and the level operation unit 52b are the operation units corresponding to the stove burner 10b, respectively, except for the heating temperature operation unit 48a, the automatic cooking selection operation unit 50a, and the level. 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 ingredients cooked in the automatic cooking mode, for example, baking. The level operation unit 52c has the same function as the level operation unit 52a except that it is an operation unit corresponding to the burner 10c.

  The grill operation unit 26 includes a heating amount operation unit 60 and a panel operation unit 62. The heating amount operation unit 60 is surrounded by an LED light emitting unit 61 that can emit blue or red light. The user operates the heating amount operation unit 60 to ignite and extinguish the grill burner 20a (see FIG. 3) and adjust the heating amount of the grill burner 20a (hereinafter sometimes referred to as “thermal power”). be able to. The structure of the heating amount operation unit 60 is the same as the heating amount operation unit 42 a of the stove operation 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. 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 operation units corresponding to the grill burner 20a, respectively, and the automatic cooking selection operation unit 50a and the recipe selection operation unit 54, respectively. The same function as the cooking state operation unit 56 is provided.

  Then, with reference to FIG. 3, the control structure of the heating cooker 2 is demonstrated. In addition, in FIG. 3, for easy understanding, the cooker burners 10b and 10c, the sensors 12b and 12c, the heating amount operating units 42b and 42c, the LED light emitting units 43b and 43c, the heating temperature operating unit 48b, and the automatic cooking selection operation Illustration of the unit 50b and the level operation units 52b and 52c is omitted. In the following, description of the configuration described in FIG. 1 is omitted.

  The heating cooker 2 includes a control unit 110 and a memory 120. The control unit 110 controls the operation of each component of the heating 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 configured by a volatile memory, a nonvolatile memory, or the like.

(Thermal power adjustment processing)
Then, with reference to FIG. 4, the thermal power adjustment process which the control part 110 of the heating cooker 2 performs is demonstrated. In the thermal power adjustment processing, an object such as a user's clothes or a hand has entered into a predetermined detection range of the operating combustors 10a, 10b, and 10c (that is, there is a high risk of ignition of the object). This is a process for detecting and reducing the heating power of the stove burners 10a, 10b, and 10c (that is, reducing or extinguishing the heating power). When the ignition operation is performed in any one of the heating amount operation units 42a, 42b, and 42c, and any one of the burners 10a, 10b, and 10c is ignited, the control unit 110 adjusts the heating power of the ignited burner. Then, the processing of FIG. 4 is started. That is, the control part 110 performs the process of FIG. 4 with respect to each of the ignited burners. Hereinafter, an example in which the stove burner 10a is ignited and the control unit 110 executes the process of FIG. 4 to adjust the heating power of the stove burner 10a will be described. However, the control part 110 performs the same process also when the burners 10b and 10c are ignited.

  In S10, the control unit 110 sets a predetermined detection range (see FIGS. 5 and 6) according to the heating power set in the heating amount operation unit 42a (that is, the heating power of the stove burner 10a at this time). The detection range is a predetermined area provided around the burner 10a, and if an object (for example, a user's hand or clothes) different from the object to be heated intrudes into the range, ignition or the like may occur. This is a predetermined region that has a characteristic. In this embodiment, the size of the detection range to be set in S10 is determined in advance according to the heating power of the operating stove burner 10a. As shown in FIG. 5, when the heating power of the operating burner 10a is relatively large, the control unit 110 sets a relatively large detection range 130 in S10. This is because, when the heating power of the stove burner 10a is relatively large, there is a possibility that the object may be ignited even within a certain distance from the stove burner 10a. On the other hand, as shown in FIG. 6, when the heating power of the operating burner 10a is relatively small, the control unit 110 sets a relatively small detection range 130 in S10. This is because, when the heating power of the cono burner 10a is relatively small, the range where there is a possibility of ignition or the like on the object is limited to the range near the cono burner 10a.

  In subsequent S12, the control unit 110 monitors whether an object enters the detection range set in S10. Specifically, in S12, the control unit 110 monitors whether an object other than the heating target enters the detection range set in S10 based on the image captured by the camera 80. For example, as illustrated in FIG. 5, when the camera 80 captures an image of an object 140 such as a user's clothing entering the detection range 130, the control unit 110 determines YES in S12, and S14 Proceed to On the other hand, when the camera 80 is capturing an image in which no object is present in the detection range 130, the control unit 110 determines NO in S12 and returns to S10, and the thermal power of the combustor 10a at that time The detection range is set according to the above and the monitoring of S12 is performed again. That is, when the heating power of the burner 10a has been changed, the control unit 110 sets a detection range corresponding to the changed heating power in S10 after returning from NO in S12. As described above, the control unit 110 can appropriately set the detection range corresponding to the current thermal power of the burner 10a and monitor the intrusion of the object (S10, S12).

  In S14, the control unit 110 determines whether or not the heating power of the burner 10a at this time is greater than a predetermined minimum heating power. The minimum thermal power of the cono burner 10a is the thermal power when the thermal power is minimized. When the heating power of the burner 10a at this time is larger than the minimum heating power, the control unit 110 determines YES in S14 and proceeds to S16. On the other hand, when the heating power of the burner 10a at this time is the minimum heating power, the control unit 110 determines NO in S14 and proceeds to S17.

  In S16, the control unit 110 decreases the heating power of the stove burner 10a. Thereafter, the control unit 110 returns to S10, newly sets a detection range corresponding to the reduced thermal power, and monitors S12.

  On the other hand, in S17, the control unit 110 extinguishes the burner 10a. In this case, the control unit 110 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 42 a during the execution of the process of FIG. 4 and the combustor 10 a is extinguished, the control unit 110 selects any of S10 to S17. Even if the process of the stage is being executed, the process of FIG. 4 is forcibly terminated.

(Detection level setting)
As described above, the size of the detection range that should be set in S10 of FIG. 4 is determined in advance according to the heating power of the operating stove burner 10a. In the present embodiment, a plurality of levels are provided in advance with respect to the relationship of the size of the detection range with respect to the heating power of the burner 10a. Specifically, a graph as shown in FIG. 7 is stored in the memory 120 in advance. In the graph of FIG. 7, the thermal power of the burner 10a and the size of the detection range are associated with each other. In FIG. 7, reference numerals 150 and 160 correspond to the first level and the second level, respectively. In the first level (reference numeral 150), the detection range corresponding to the same thermal power is larger than in the second level (reference numeral 160).

  In this embodiment, when the user operates the level operation unit 52a, the level of the detection range corresponding to the heating power of the burner 10a is set to one of the first level and the second level. Can be instructed to do. In accordance with an instruction from the user, the control unit 110 sets the level of the detection range corresponding to the heating power of the burner 10a to one of the first level and the second level. The control unit 110 sets the detection range in S10 of FIG. 4 according to the correspondence relationship between the thermal power indicated by the set level and the detection range. The user can also input an instruction to change the level by operating the level operation unit 52a. Also in this case, the control unit 110 changes the level according to the user's instruction. Similarly to the case of the stove burner 10a, the level of the detection range corresponding to the heating power of the stove burners 10b and 10c can also be set by the user operating the level operation units 52b and 52c.

  In the above, the structure and operation | movement of the heating cooker 2 of a present Example were demonstrated. As described above, in the present embodiment, the control unit 110 changes the size of the detection range in accordance with the heating power of the operating stove burner 10a (S10 in FIG. 4). For this reason, for example, by increasing the detection range when the heating power of the burner 10a is relatively large (see FIG. 5), it is possible to appropriately suppress the ignition of an object (for example, a human body or clothing) even when the heating power is large. obtain. In addition, for example, by reducing the detection range when the heating power of the stove burner 10a is relatively small (see FIG. 6), an object (such as a human body) is used to heat a relatively small heating object with a small heating power. However, even in a situation where it can approach relatively close to the stove burner 10a, it is possible to allow the user to cook properly by not excessively reducing the thermal power. Therefore, according to the heating cooker 2 of the present embodiment, the size of the detection range and the situation of the stove burner 10a can be adapted to allow the user to appropriately cook, and appropriately suppress the ignition of the object. can do.

  In the present embodiment, the control unit 110 determines whether or not the burner 10a at the time when it is determined that an object has entered the detection range (YES in S12) is greater than the minimum burner. It is switched between reducing the heating power of 10a (S16) and extinguishing the burner 10a (S17). In the present embodiment, the stove burner 10a can be appropriately operated according to the heating power of the stove burner 10a when an object enters the detection range.

  In the present embodiment, the control unit 110 determines that the heating power of the burner 10a at the time when it is determined that an object has entered the detection range (YES in S12) is greater than the minimum heating power (YES in S14). The thermal power of the burner 10a is reduced (S16), and then a detection range corresponding to the thermal power after the reduction is newly set. Therefore, the user's convenience can be ensured by appropriately applying the detection range according to the situation of the stove burner 10a.

  In the present embodiment, the control unit 110 sets the level of the detection range corresponding to the heating power of the burner 10a to the first level and the second level (see FIG. 7) according to an instruction from the user. Set to one. The control unit 110 sets the detection range in S10 of FIG. 4 according to the correspondence relationship between the thermal power indicated by the set level and the detection range. In the present embodiment, the level of the detection range corresponding to the heating power of the burner 10a can be set to a level desired by the user. Since a detection range of a desired level can be applied for each user, the cooking device 2 that is easy to use for each user can be realized.

  The stove burners 10a, 10b, and 10c are examples of the “heating unit”. The camera 80 is an example of a “state detection unit”. The minimum thermal power is an example of “specific thermal power”.

(Second embodiment)
With reference to FIGS. 8-11, it demonstrates centering on a different point from 1st Example. The basic structure of the cooking device 2 of this embodiment is also the same as that of the first embodiment. In the present embodiment, the content of the thermal power adjustment process executed by the control unit 110 is different from that in the first embodiment.

(Thermal power adjustment processing)
With reference to FIG. 8, the thermal power adjustment process which the control part 110 of a present Example performs is demonstrated. Hereinafter, an example will be described in which the control unit 110 executes the process of FIG. 8 when the burner 10a is ignited. In S <b> 30, the control unit 110 determines whether or not a flame overflow state has occurred in the operating combustor 10 a. The flame overflow state is a state in which the flame of the operating stove burner 10a protrudes from the periphery of the heated object heated on the stove burner 10a (see FIG. 9). Specifically, in S30, the control unit 110 determines whether or not a flame overflow state has occurred based on an image captured by the camera 80. As shown in FIG. 9, when the captured image of the camera 80 represents a state where a flame overflow is occurring, the control unit 110 determines YES in S <b> 30 and proceeds to S <b> 32. On the other hand, as shown in FIG. 10, when the captured image of the camera 80 represents a state where no flame overflow has occurred, the control unit 110 determines NO in S30, and proceeds to S34.

  In S32, the control unit 110 sets a relatively large detection range 230 as shown in FIG. This is because it can be said that there is a relatively high possibility that the flame that protrudes from the object to be heated will ignite an object approaching the stove burner 10a when the flame overflow state has occurred. When S32 ends, the process proceeds to S36.

  On the other hand, in S34, the control unit 110 sets a relatively small detection range 230 as shown in FIG. This is because when the flame overflow state has not occurred, it can be said that the flame does not protrude from the object to be heated and it is relatively difficult for the object to ignite. When S34 ends, the process proceeds to S36. As described above, in the present embodiment, the size of the detection range to be set is determined in advance according to whether or not a flame overflow state has occurred in the operating combustor 10a.

  In S36, the control unit 110 monitors whether an object enters the detection range set in S32 or S34. Specifically, in S36, the control unit 110 monitors whether an object other than the heating target enters the detection range set in S32 or S34 based on the image captured by the camera 80. For example, as illustrated in FIG. 9, when the camera 80 captures an image of an object 240 entering the detection range 230, the control unit 110 determines YES in S36 and proceeds to S38. On the other hand, when the camera 80 is capturing an image in which no object is present in the detection range 230, the control unit 110 determines NO in S36 and returns to S30. At that time, the control burner 10a has a flame. A detection range is set according to whether or not an overflow condition has occurred (S30 to S34), and monitoring of S36 is performed again. As described above, the control unit 110 can appropriately set the detection range in accordance with whether or not the flame overflow state is currently occurring in the burner 10a and can monitor the intrusion of the object (S30 to S36). ).

  In S38, the control unit 110 determines whether or not the heating power of the burner 10a at this time is greater than a predetermined minimum heating power. If the heating power of the burner 10a at this time is greater than the minimum heating power, the control unit 110 determines YES in S38 and proceeds to S40. On the other hand, when the heating power of the burner 10a at this time is the minimum heating power, the control unit 110 determines NO in S38 and proceeds to S41.

  In S40, the control unit 110 decreases the heating power of the stove burner 10a. Thereafter, the control unit 110 returns to S30, sets a new detection range according to whether or not a flame overflow condition has occurred in the burner 10a after the reduction in thermal power (S30 to S34), and monitors S36. Do.

  On the other hand, in S41, the control unit 110 extinguishes the burner 10a. In this case, the control unit 110 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. Even in the present embodiment, when the fire extinguishing operation is performed in the heating amount operation unit 42a during the execution of the process of FIG. 8 and the stove burner 10a is extinguished, the control unit 110 performs any process of S30 to S41. Even during execution, the processing of FIG. 8 is forcibly terminated.

(Detection level setting)
As described above, the size of the detection range to be set in the present embodiment is determined in advance depending on whether or not a flame overflow state has occurred in the operating combustor 10a (S30 to FIG. 8). (See S34). Also in this embodiment, a plurality of levels are provided in advance with respect to the relationship of the size of the detection range with respect to the heating power of the burner 10a. Specifically, a graph as shown in FIG. 11 is stored in the memory 120 in advance. In the graph of FIG. 11, the size of the detection range when the flame overflow state occurs in the stove burner 10a and the size of the detection range when it does not occur are associated with each other. In FIG. 11, reference numerals 250 and 260 correspond to the first level and the second level, respectively. In the first level (reference numeral 250), the detection range corresponding to the same state (the state in which the flame overflow state and the flame overflow state have not occurred) is larger than that in the second level (reference numeral 260).

  Also in the present embodiment, the level of the detection range corresponding to each of the states where the flame overflow state is not generated by the user operating the level operation unit 52a is defined as the first level. It can be instructed to set one of the second levels. The control unit 110 sets one of the first level and the second level in accordance with an instruction from the user. The control unit 110 sets the detection range in S30 to S34 in FIG. 8 according to the correspondence relationship indicated by the set level. Further, the user can input an instruction to change the level by operating each level operation unit 52a. Also in that case, the control part 110 changes a level according to a user's instruction | indication. Similarly to the case of the stove burner 10a, the level of the detection range corresponding to the heating power of the stove burners 10b and 10c can also be set by the user operating the level operation units 52b and 52c.

  In the above, the structure and operation | movement of the heating cooker 2 of a present Example were demonstrated. As described above, in the present embodiment, the control unit 110 changes the size of the detection range to be set depending on whether or not a flame overflow condition has occurred in the operating combustor 10a (FIG. 8). S30 to S34). Therefore, for example, by increasing the detection range when a flame overflow condition has occurred (see FIG. 9), it is possible to appropriately ignite the object even in a situation where there is a relatively high possibility that an overhanging flame will ignite the object Can be suppressed. In addition, for example, by reducing the detection range when no flame overflow condition has occurred (see FIG. 10), the object (such as a hand) may be used in a situation in which the flame does not protrude and the object is relatively difficult to ignite. ) Even when approaching relatively close to the heating unit, it is possible to allow the user to cook properly without excessively reducing the heating power. Therefore, according to the heating cooker 2 of the present embodiment, the size of the detection range and the situation of the stove burner 10a can be adapted to allow the user to appropriately cook, and appropriately suppress the ignition of the object. can do.

  Also in this embodiment, the control unit 110 determines whether or not the burner 10a at the time when it is determined that an object has entered the detection range (YES in S36) is greater than the minimum burn power. It is switched between reducing the heating power of 10a (S40) or extinguishing the stove burner 10a (S41). Also in the present embodiment, the stove burner 10a can be appropriately operated in accordance with the heating power of the stove burner 10a when an object enters the detection range.

  In the present embodiment, the controller 110 determines that the heating power of the burner 10a at the time when it is determined that an object has entered the detection range (YES in S36) is greater than the minimum heating power (YES in S38). The thermal power of the burner 10a is reduced (S40), and a detection range is newly set according to whether or not a flame overflow state has occurred in the stove burner 10a after the thermal power reduction (S30 to S34). Therefore, the user's convenience can be ensured by appropriately applying the detection range according to the situation of the stove burner 10a.

  Further, in the present embodiment, the control unit 110 sets the level of the detection range to the first level and the second level (in the case where the flame overflow state has occurred or not according to the instruction from the user, respectively. (See FIG. 11). The control unit 110 sets the detection range in S30 to S34 in FIG. 8 according to the set level. In the present embodiment, the level of the size of the detection range in each of the cases where the flame overflow has occurred and the case where the flame overflow has not occurred can be set to a level desired by the user. Since a detection range of a desired level can be applied for each user, the cooking device 2 that is easy to use for each user can be realized.

  The stove burners 10a, 10b, and 10c are examples of the “heating unit”. The camera 80 is an example of a “state detection unit”. The minimum thermal power is an example of “specific thermal power”. The case of YES in S30 of FIG. 8 is an example of “first case”, and the case of NO in S30 is an example of “second case”.

  Each embodiment has been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

(Modification 1) The control unit 110 may set the detection range based on both the heating power of the stove burner 10a and the presence / absence of occurrence of a flame overflow state in the stove burner 10a. For example, the control unit 110 may set the largest detection range in a state where the heating power of the burner 10a is large and a flame overflow state is generated.

(Modification 2) In the first embodiment described above, in S10 of FIG. 4, the control unit 110 sets a relatively large detection range when the heating power of the operating burner 10a is large (see FIG. 5). When the heating power of the stove burner 10a is small, a relatively small detection range is set (see FIG. 6). The controller 110 is not limited to this, and the control unit 110 sets a relatively small detection range when the heating power of the operating combo burner 10a is large, and sets a relatively large detection range when the heating power of the operating combo burner 10a is small. You may make it do. Generally speaking, the control unit may change the size of the detection range in accordance with the heating power of the heating unit in operation. When cooking with a large amount of thermal power, the user is likely to be aware that the thermal power of the stove burner 10a is large, and there is a possibility that the user will inadvertently bring his hand close to the stove burner 10a. Is low. On the other hand, when cooking for a long time with small heat (for example, when stewed cooking is performed), the user forgets that cooking is being performed with the stove burner 10a, and so on. There is a possibility that a situation occurs in which the above is brought close to the stove burner 10a. Also by this modification, the control part 110 can adapt a detection range and a thermal power appropriately, can make a user perform cooking appropriately, and can suppress the ignition to an object.

(Modification 3) In the second embodiment described above, the control unit 110 sets a relatively large detection range when a flame overflow condition has occurred in the operating combo burner 10a (YES in S30 of FIG. 8). When a flame overflow state has not occurred (NO in S30), a relatively small detection range is set (S34, see FIG. 10). The control unit 110 is not limited to this, and the control unit 110 sets a relatively small detection range when a flame overflow state occurs in the operating combustor 10a, and detects a relatively large detection when the flame overflow state does not occur. A range may be set. Generally speaking, the control unit, between the first case where it is determined that a flame overflow condition has occurred and the second case where it is determined that no flame overflow condition has occurred, What is necessary is just to change the magnitude | size of a detection range. When a flame overflow condition has occurred in the stove burner 10a, the user recognizes that it is dangerous to inadvertently bring his / her hand near the stove burner 10a if he / she visually recognizes the flame protruding from the object to be heated. It is highly possible. On the other hand, when the flame overflow state does not occur in the stove burner 10a, since the user cannot visually recognize the flame, the user may inadvertently bring his hand near the stove burner 10a. Also by this modification, the control part 110 can adapt a detection range and the presence or absence of a flame overflow state appropriately, can make a user cook appropriately, and can suppress the ignition to an object.

(Modification 4) In each of the above embodiments, the control unit 110 determines whether or not the heating power of the control burner 10a at the time when it is determined that an object has entered the detection range is greater than the minimum heating power. Whether to reduce the heating power of 10a or to extinguish the burner 10a is switched (see S14 to S17 in FIG. 4 and S38 to S41 in FIG. 8). The thermal power that is a criterion for determining whether to reduce or extinguish the thermal power of the combustor 10a is not limited to the minimum thermal power, and may be any standard thermal power (for example, “medium fire”). The reference thermal power in this modified example is also an example of “specific thermal power”.

(Modification 5) In each of the above embodiments, the control unit 110 determines whether or not an object has entered the detection range based on the image captured by the camera 80 (S12 in FIG. 4, S12 in FIG. 8). (See S36). Similarly, in the second embodiment, the control unit 110 determines whether or not a flame overflow condition has occurred in the stove burner 10a based on the captured image of the camera 80 (S30 in FIG. 8). However, the element for detecting the surroundings 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 in place of the camera 80 as a detection element serving 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 in place of the camera 80 as a detection element serving as a reference for determining whether or not a flame overflow state has occurred in the stove burner 10a. The controller 110 may determine whether or not a flame overflow state has occurred based on the detection value of the infrared sensor. The infrared sensor and the ultraviolet sensor in this modification are also examples of the “state detection unit”.

(Modification 6) In each of the above-described embodiments, when the user operates the level operation unit 52a, the level of the detection range corresponding to the heating power of the burner 10a (or a flame overflow state occurs). It can be instructed to set the level of the detection range corresponding to each of the states that are not present to one of the first level and the second level. However, the levels that can be set by the user are not limited to the first level and the second level, and may be three or more. The user may be settable to one of three or more levels. Also, the three or more levels that can be set by the user may include a level for turning off the detection function. When the level for turning off the detection function is selected, the control unit 110 does not have to execute the thermal power adjustment process (see FIGS. 4 and 8).

  The technical elements described in this 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. In addition, the technology exemplified in this specification or the drawings can achieve a plurality of objects at the same time, and has technical usefulness by achieving one of the objects.

2: Heat cooker 4: Main body 4a: Front face 6: Top plate 8a: Gotoku 8b: Gotoku 8c: Gotoku 10a: Combo burner 10b: Combo burner 10c: Combo burner 12a: Sensor 12b: Sensor 12c: Sensor 20: Grill box 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 emission 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: Level operation unit 52b: Level operation unit 52c: Level operation unit 54: Recipe selection operation unit 56: Cooking state operation unit 60: Heating amount operation unit 6 1: LED light emission 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: Transmission window 110: Control unit 120: Memory 130: Detection range 140: Object 230: Detection range 240: Object

Claims (8)

A cooking device,
A heating unit that heats an object to be heated using heat generated by burning fuel;
A state detection unit for detecting a state around the heating unit;
A control unit,
The controller is
Based on a state detected by the state detection unit, an operation is performed when it is determined that an object different from the heating target has entered the detection range around the heating unit during the operation of the heating unit. Squeezing the heating power of the heating part inside,
According to the heating power of the heating unit in operation, the size of the detection range is changed.
Cooking cooker. Squeezing the heating power of the heating unit includes reducing the heating power of the heating unit and extinguishing the heating unit,
The control unit switches between reducing the heating power of the heating unit or extinguishing the heating unit according to the heating power of the heating unit at a time point when it is determined that the object has entered the detection range. The cooking device according to claim 1. Squeezing the heating power of the heating unit includes reducing the heating power of the heating unit,
In a situation where the heating power of the heating unit at the time when it is determined that the object has entered the detection range, the control unit reduces the heating power of the heating unit and the heating power after the decrease The heating cooker according to claim 1 or 2, wherein the size of the detection range is changed according to the condition. It further comprises an input unit for the user to input instructions,
The said control part changes the level of the magnitude | size of the said detection range corresponding to the heating power of the said heating part according to the instruction | indication input into the said input part, The heat cooking as described in any one of Claim 1 to 3 vessel. A cooking device,
A heating unit that heats an object to be heated using heat generated by burning fuel;
A state detection unit for detecting a state around the heating unit;
A control unit,
The controller is
Based on a state detected by the state detection unit, an operation is performed when it is determined that an object different from the heating target has entered the detection range around the heating unit during the operation of the heating unit. Squeezing the heating power of the heating part inside,
Based on the state detected by the state detection unit, whether or not a flame overflowing state has occurred in which the flame of the heating unit in operation protrudes from the periphery of the heating object heated on the heating unit. The detection range between the first case where it is determined that the flame overflow state has occurred and the second case where it is determined that the flame overflow state has not occurred. Change the size of
Cooking cooker. Squeezing the heating power of the heating unit includes reducing the heating power of the heating unit and extinguishing the heating unit,
The control unit switches between reducing the heating power of the heating unit or extinguishing the heating unit according to the heating power of the heating unit at a time point when it is determined that the object has entered the detection range. The cooking device according to claim 5. Squeezing the heating power of the heating unit includes reducing the heating power of the heating unit,
The controller is
In a situation where the heating power of the heating unit at a time when it is determined that the object has entered the detection range is larger than a specific heating power, the heating power of the heating unit is reduced,
It is further determined whether or not the flame overflow state has occurred in the heating unit after the reduction in thermal power, and the size of the detection range is changed between the first case and the second case. The cooking device according to claim 5 or 6. It further comprises an input unit for the user to input instructions,
The said control part changes the level of the magnitude | size of the said detection range in the said 1st case, and the magnitude | size of the said detection range in the said 2nd case according to the instruction | indication input into the said input part. The cooking device according to any one of 7 to 7.

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