JP7517962B2 - Heating and cooking system - Google Patents

Description

The present invention relates to a cooking system that includes a stove equipped with a stove burner having a burner head with multiple flame ports, the stove having a heat instruction unit that inputs heat adjustment instruction information for the stove burner by a user, and adjusts the heat of the stove burner based on the heat adjustment instruction information input to the heat instruction unit.

Conventionally, this type of cooking system is known to have a means for detecting combustion flames (flame overflow) that overflow outside the bottom surface of a cooking container placed above a stove burner, and to reduce the heat of the stove burner when flame overflow is detected (see, for example, Patent Document 1).

In this case, if the cooking vessel is rectangular, oval, or otherwise long in one direction, and flame overflow occurs only along the short side of the cooking vessel, the heat output of all parts of the stove burner will be reduced, and the lack of heat will have a negative effect on cooking performance.

To ensure safety, it is sufficient to reduce the heat of the parts of the stove burner where high heat can be dangerous. To ensure safety and avoid adverse effects on cooking performance, it is desirable to reduce the heat of only a part of the stove burner, that is, to make the heat of each part of the stove burner uneven.

JP 2015-230148 A

In view of the above, the present invention aims to provide a heating and cooking system that can make the heat of each part of the stove burner uneven, ensure safety, and prevent adverse effects on cooking performance.

In order to solve the above problems, the present invention provides a heating and cooking system comprising a stove equipped with a stove burner having a burner head portion in which a number of flame ports are formed, the stove comprising a fire power instruction portion for inputting information for adjusting the fire power of the stove burner by a user, and adjusting the fire power of the stove burner based on the fire power adjustment instruction information inputted to the fire power instruction portion, the burner head portion having a plurality of divided head regions divided in the circumferential direction, comprising a valve means capable of individually adjusting the fire power of these plurality of divided head regions, a control means for controlling the valve means, and a non-uniform fire power instruction means for instructing non-uniform fire power to make the fire power of the plurality of divided head regions non-uniform, and the control means performs non-uniform fire power control to make the fire power of the plurality of divided head regions non-uniform when a non-uniform fire power is instructed by the non-uniform fire power instruction means.

According to this premise , by instructing uneven heat power as necessary using the uneven heat power instruction means, it is possible to make the heat power of the multiple divided head regions uneven, and reduce the heat power only in the divided head regions where it is necessary to ensure safety. Therefore, it is possible to ensure safety and prevent adverse effects on cooking performance.

Here , the present invention is characterized in that , when uneven heat control is executed, the control means executes control to increase or decrease the heat of the plurality of divided head regions based on the heat adjustment instruction information while keeping the heat of the plurality of divided head regions uneven, when heat adjustment instruction information is inputted by the heat instruction unit. This allows heat adjustment according to the user's request without compromising safety, improving convenience.

Furthermore, in the present invention, when uneven fire power control is being executed, if fire power adjustment instruction information is input in the fire power instruction section such that the fire power of any of the multiple divided head regions exceeds a predetermined upper limit fire power, the control means desirably executes control to maintain the fire power of the divided head region whose fire power exceeds the upper limit fire power at the upper limit fire power. Here, if the upper limit fire power is set to, for example, the maximum fire power that does not cause flame overflow in that divided head region, flame overflow will not occur and safety will be ensured even if fire power adjustment instruction information that significantly increases the fire power is input in the fire power instruction section.

The present invention is characterized in that , under the above premise , the burner vicinity information acquisition means acquires burner vicinity information that indicates the state in the vicinity of the stove burner, and the non-uniform firepower instruction means has an automatic instruction means for instructing non-uniform firepower based on the burner vicinity information. Here, if the burner vicinity information is cooking vessel information related to a cooking vessel placed above the stove burner, when the cooking vessel is longitudinal in one direction, the entire cooking vessel can be heated uniformly by instructing a non-uniform firepower that weakens the firepower of the divided head region located in the short direction of the cooking vessel compared to the firepower of the divided head region located in the longitudinal direction of the cooking vessel. Also, if the burner vicinity information is flame overflow information related to a combustion flame overflowing outward from the bottom surface of the cooking vessel, when the cooking vessel is eccentric with respect to the stove burner and flame overflow occurs in a part, the flame overflow can be prevented and insufficient heating of the cooking vessel can be suppressed by instructing a non-uniform firepower that weakens the firepower of the divided head region corresponding to the location where the flame overflow occurs. Furthermore, if the burner vicinity information is intrusion information regarding the approach of an intrusion to the vicinity of the stove burner, heating of the intrusion can be suppressed by instructing an uneven heating power that weakens the heating power of the divided head area close to the intrusion. Therefore, it is preferable that the burner vicinity information includes at least one of cooking vessel information regarding the cooking vessel placed above the stove burner, flame overflow information regarding the combustion flame overflowing outside the bottom surface of the cooking vessel, and intrusion information regarding the approach of the intrusion to the vicinity of the stove burner.

The non-uniform heat output instruction means may also have a manual instruction means for instructing non-uniform heat output by user operation. This allows non-uniform heat output control to be performed according to the user's preferences, improving convenience.

1 is a perspective view showing an installation state of a heating and cooking system according to an embodiment of the present invention; 2 is a perspective view of a main part of a stove provided in the heating and cooking system of the embodiment. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2 . 3 is a perspective view of a disassembled state of a stove burner provided in a stove included in the heating and cooking system of the embodiment. FIG. 4A to 4D are enlarged plan views of an operation panel section provided on a top plate of a stove provided in the heating and cooking system of the embodiment. 2 is a perspective view of a range hood provided in the cooking system of the embodiment, viewed obliquely from below. FIG. 4 is a plan view showing an information acquisition area for a burner vicinity information acquisition means provided in the heating and cooking system of the embodiment. FIG. 4 is a flow chart showing the control contents regarding the uneven heat control performed by the control means of the stove provided in the heating cooking system of the embodiment. FIG. FIG. 4 is an explanatory diagram showing the configuration of a non-uniform heating power indicating means provided in the heating cooking system of the embodiment. 6A to 6F are diagrams showing changes in heat power in each section head region due to heat power adjustment in each mode.

Referring to Figs. 1 to 3, the stove 1 provided in the heating and cooking system of the embodiment of the present invention is a built-in type stove in which the stove body 2 is placed so as to drop into the stove opening CTa formed in the counter top CT of the system kitchen, and is equipped with two stove burners 3, 3 on the left and right. Each stove burner 3 has a burner head part 31 exposed on the top plate 4 through a burner opening 41 opened in the top plate 4 covering the open upper surface of the stove body 2. The stove 1 also has a trivet 5 installed on the top plate 4 so as to surround each burner opening 41. The top plate 4 is equipped with a ring member 42 that closes the gap between each burner opening 41 and the burner head part 31 of each stove burner 3. In addition, a pair of left and right operation panel parts 43, 43 for the stove burners 3, 3 and a power switch 44 in the center are provided on the front part of the top plate 4.

4, the burner head 31 of each burner burner 3 has four divided head regions 31 ₁ to 31 ₄ , which are divided in the circumferential direction. More specifically, the burner head 31 is composed of an annular lower head member 32 and an annular upper head member 33 installed on the lower head member 32. Four radial ribs 321 are erected at equal intervals in the circumferential direction on the upper surface of the lower head member 32, and four radial ribs 331 are also erected at equal intervals in the circumferential direction on the lower surface of the upper head member 33. Furthermore, a phase-determining notch 332 is provided on the inner periphery of the upper head member 33 to engage with an upward protrusion 322 provided on the inner periphery of the lower head member 32. Then, by placing the upper head member 33 on the lower head member 32 in a phased state, the lower edges of the radial ribs 331 of the upper head member 33 come into contact with the upper edges of the radial ribs 321 of the lower head member 32, so that the burner head section 31 is divided into a first divided head region _31-1 at the front, a second divided head region _31-2 on the right, a third divided head region _31-3 at the rear, and a fourth divided head region _31-4 on the left. Also, a number of flame ports 34 are formed on the outer periphery of the upper head member 33, from which the air-fuel mixture is ejected from each of the divided head regions _31-1 to _31-4 .

The burner head section 31 is installed on an annular burner body 30 having a plurality of vertically extending supports 301, the lower ends of which fit into a plurality of support holes 211 formed in a burner holder 21 fixed inside the stove body 2. A mixing tube section 302 is vertically extended downward from the center of each of the divided head regions _31-1 to _31-4 in the burner body 30. The burner holder 21 is provided with first to fourth nozzles 35-1 to _35-4 facing the lower end openings of the mixing tube section 302 extending from the _first to fourth divided head regions _31-1 to _31-4 . The lower head member 32 is provided with a guide plate section 323 which faces the upper end openings of each of the mixing tube sections 302 with a small gap therebetween. The fuel gas injected from each of the nozzles _35-1 to _35-4 collides with each of the guide plate sections 323 and diffuses into each of the divided head regions _31-1 to _31-4 , causing a radial venturi effect in which primary air is sucked in from the lower end openings of each of the mixing tube sections 302, thereby generating an air-fuel mixture. In addition, in Fig. 4, the upper head member 33 is shown in a perspective view seen obliquely from below, and the lower head member 32 and the burner holder 21 are shown in a perspective view seen obliquely from above.

Each burner 3 is provided with an ignition electrode 36 that sparks under the control of the controller 6 as a control means when the burner 3 is ignited by the ignition/extinction button 431 (described later) provided on the operation panel 43, a thermocouple 37 as a flame detection element, and a pot bottom temperature sensor 38 that detects the temperature by contacting the top of the burner 3, i.e., the bottom of the cooking vessel placed on the trivet 5. The ignition electrode 36 is provided facing the flame port 34 of the third divided head region _31-3 , and four thermocouples 37 are provided facing the flame port 34 of each of the first to fourth divided head regions _31-1 to _31-4 . The pot bottom temperature sensor 38 is provided in the central space surrounded by the burner body 30 and burner head portion 31 of each burner 3. The upper head member 33 is provided with a tongue-shaped cover portion 333 that protrudes radially outward directly above the ignition electrode 36 to prevent overflowing liquid from falling onto the ignition electrode 36 .

A safety valve 391 is provided in the gas supply path 39 for each burner 3. The safety valve 391 is opened under the control of the controller 6 when the ignition is performed by the ignition/extinction button 431 provided on the operation panel 43, and is closed under the control of the controller 6 when the ignition is performed by the ignition/extinction button 431, when the pot bottom temperature sensor 38 detects overheating of the cooking vessel, or when a misfire is detected due to a drop in the electromotive force of the thermocouple 37 corresponding to the divided head area that should be burning. The gas supply path 39 is branched into first to fourth branch paths 39 ₁ to 39 ₄ downstream of the safety valve 391, which are connected to the first to fourth nozzles 35 ₁ to 35 ₄ . The first to fourth branch passages 39 ₁ to 39 ₄ are provided with first to fourth on-off valves 392 ₁ to 392 ₄ and first to fourth fire power adjustment valves 393 ₁ to 393 _4. These on-off valves 392 ₁ to 392 ₄ and fire power adjustment valves 393 ₁ to 393 ₄ constitute a fire power adjustment means capable of individually adjusting the fire power of each of the divided head regions 31 ₁ to 31 ₄ , including extinguishing. In this embodiment, the fire power adjustment valves 393 ₁ to 393 ₄ can adjust the fire power of each of the divided head regions 31 ₁ to 31 ₄ in nine stages, from the minimum first stage fire power to the maximum ninth stage fire power.

5, each operation panel section 43 is provided with a display section 430, a fire ON/OFF button 431, a fire power adjustment button 432 as a fire power instruction section for inputting information on the user's instruction to adjust the fire power of the stove burner 3, a decision button 433, an auto cooking button 434, a mode confirmation button 435, a time button 436, a temperature button 437, an up/down button 438, and a selection button 439. The fire power adjustment button 432 allows the fire power of the entire stove burner 3 to be adjusted in 10 steps from the minimum fire power 1 to the maximum fire power 10. The fire power of each of the first to fourth divided head areas _31-1 to _31-4 is changed from fire power 1 to fire power 10 as shown in FIG. 10(a). In addition, at the time of ignition, the flame power of each of the first to fourth divided head regions 31 ₁ to 31 ₄ is set to the fourth flame power, and even after ignition, the flame power is maintained at the fourth flame power until flame power adjustment instruction information is input by the flame power adjustment button 432.

The display unit 430 is provided with a flame power display unit 4301 having first to fourth display areas _4301-1 to _4301-4 corresponding to the first to fourth divided head areas _31-1 to _31-4 of the stove burner 3. Each display area _4301-1 to _4301-4 has an inner and outer triple display line, and the number of lit display lines increases from the inside to the outside as the flame power of each divided head area _31-1 to _31-4 increases. In addition, by pressing and holding any of the first to fourth display areas _4301-1 to _4301-4 , the flame power of the divided head area corresponding to this display area can be changed by operating the flame power adjustment button 432.

When the power switch 44 is turned on and the mode confirmation button 435 is pressed, the display unit 430 displays a mode confirmation screen as shown in FIG. 5(a). The modes displayed on the mode confirmation screen include cooking vessel, flame overflow prevention, overflow prevention, overheat prevention, user approach, front temperature reduction, and manual setting. When a mode is selected by operating the selection button 439 and the decision button 433 is pressed, the uneven heat control described below can be performed in the selected mode. The selected mode changes to a white display with a black background. When the manual setting mode is selected and the decision button 433 is pressed, the mode confirmation screen switches to the one shown in FIG. 5(b), and the displayed modes become cooking vessel selection, overflow prevention, and front temperature reduction. When the cooking vessel selection mode is selected and the decision button 433 is pressed, the screen switches to the one shown in FIG. 5(c), and either a vertical vessel (a cooking vessel with a longitudinal direction in the front-to-back direction) or a horizontal vessel can be selected. Also, when the overflow prevention mode is selected and the decision button 433 is pressed, the screen changes to that shown in FIG. 5(d), and the size (diameter) of the cooking vessel can be selected. The relationship between each of the above modes and uneven heat control will be described in detail later.

The cooking system of this embodiment is also provided with a pair of left and right burner vicinity information acquisition means 7, 7 consisting of infrared cameras arranged on the underside of the range hood RH located above the counter top CT, as shown in Fig. 6. Each burner vicinity information acquisition means 7 takes an overhead image of a predetermined range including the periphery of each burner burner 3, and acquires burner vicinity information that represents the state of the vicinity of each burner burner 3. As shown in Fig. 7, within the image capture range of each burner vicinity information acquisition means 7, a square area with a side of a predetermined length (e.g., about 30 cm) centered on the center of each burner burner 3 is defined as a first area S1, and an area within a predetermined distance (e.g., about 30 cm) from the outer edge of the top plate 4 of the stove 1 is defined as a second area S2. Furthermore, the first and second areas S1, S2 are divided into the first divided area _S11 , S21 in the front, the second divided area S12, _S22 in the right, the third divided area S13, _S23 in the rear, and the fourth divided area _S14 , _S24 in the left, corresponding to the first divided head area ₃₁₁ in the front, the second divided head area ₃₁₂ in the right _, the third divided head area ₃₁₃ in the rear, and the fourth divided head area ₃₁₄ in the left of the stove burner _3. Note that Fig. 7 shows the first and second areas S1, S2 for the stove burner 3 on the left side, and the first and _second areas are set similarly for the stove burner 3 on the right side, symmetrically to Fig. 7.

The cooking system of this embodiment further includes a non-uniform heat instruction means 8 for instructing non-uniform heat to make the heat of the first to fourth divided head regions 31 ₁ to 31 ₄ of each burner 3 non-uniform. When non-uniform heat is instructed by the non-uniform heat instruction means 8, the controller 6 executes non-uniform heat control to make the heat of the first to fourth divided head regions 31 ₁ to 31 ₄ non-uniform, and when heat adjustment instruction information is input by the heat adjustment button 432 during execution of the non-uniform heat control, the controller 6 executes control to increase or decrease the heat of the first to fourth divided head regions 31 ₁ to 31 ₄ based on the heat adjustment instruction information while keeping the heat of the first to fourth divided head regions 31 ₁ to 31 ₄ non-uniform. This control will be described below with reference to FIG. 8.

The process for the non-uniform flame power control starts when the power switch 44 is turned on. First, in STEP 1, it is determined whether or not an ignition operation is performed by the ignition/extinction button 431. Until an ignition operation is performed, the process repeatedly returns to STEP 1. When an ignition operation is performed, the process proceeds to STEP 2, in which the safety valve 391 and the first to fourth opening/closing valves 392 ₁ to 392 ₄ are opened to supply gas to all the divided head regions 31 ₁ to 31 ₄ of the stove burner 3, and the ignition electrode 36 is sparked to ignite the stove burner 3. Next, in STEP 3, it is determined whether or not ignition is detected by the thermocouple 37. If ignition is not detected, an ignition failure is notified in STEP 4, and then the process proceeds to STEP 5, in which the safety valve 391 and the first to fourth opening/closing valves 392 ₁ to 392 ₄ are closed to perform extinguishing control of the stove burner 3.

When ignition is detected, the process proceeds to STEP 6, where it is determined whether or not a non-uniform firepower instruction has been issued from the non-uniform firepower instruction means 8. If a non-uniform firepower instruction has been issued, the process proceeds to STEP 7, where non-uniform firepower control is executed. Next, in STEP 8, it is determined again whether or not a non-uniform firepower instruction has been issued from the non-uniform firepower instruction means 8, and if a non-uniform firepower instruction has been issued, the process proceeds to STEP 9, where non-uniform firepower control is continued. Next, in STEP 10, it is determined whether or not a fire-extinguishing operation has been performed using the on/off button 431, and if no fire-extinguishing operation has been performed, the process proceeds to STEP 11, where it is determined whether or not firepower adjustment instruction information has been input using the firepower adjustment button 432. When fire power adjustment instruction information is input, the process proceeds to STEP 12, and while keeping the fire powers of the first to fourth divided head regions _31.sub.1 to _31.sub.4 uneven, the process executes fire power adjustment control to increase or decrease the fire powers of the first to fourth divided head regions _31.sub.1 to _31.sub.4 based on the fire power adjustment instruction information as shown in Fig. 10(b) to (f), and then returns to STEP 8. When fire power adjustment instruction information is not input, the process returns to STEP 8 without going through STEP 12. When a fire extinguishing operation has been performed, the process proceeds from STEP 10 to STEP 5 to perform fire extinguishing control.

If it is determined in STEP 6 that a non-uniform fire power instruction has not been issued, the process proceeds to STEP 13, where it is determined whether or not fire power adjustment instruction information has been input by the fire power adjustment button 432. If fire power adjustment instruction information has been input, the process proceeds to STEP 14, where fire power adjustment control is performed to increase or decrease the fire power of the first to fourth divided head areas 31 ₁ to 31 ₄ based on the fire power adjustment instruction information as shown in FIG. 10(a), and then the process proceeds to STEP 15. If fire power adjustment instruction information has not been input, the process proceeds to STEP 15 without passing through STEP 14. In STEP 15, it is determined whether or not a fire extinguishing operation has been performed, and if a fire extinguishing operation has not been performed, the process proceeds to STEP 8, and if a fire extinguishing operation has been performed, the process proceeds to STEP 5 to perform fire extinguishing control. If it is determined in STEP 8 that a non-uniform fire power instruction has not been issued, the non-uniform fire power control is released in STEP 16, and then the process proceeds to STEP 13.

9, the non-uniform flame power instruction means 8 has an automatic instruction means 81 for instructing non-uniform flame power based on information about the vicinity of the burner, and a manual instruction means 82 for instructing non-uniform flame power by a user operation. The automatic instruction means 81 includes a first automatic instruction section 811 that is activated when the cooking vessel mode is selected on the screen of FIG. 5(a) and instructs non-uniform flame power based on cooking vessel information about the cooking vessel placed above the stove burner 3, i.e., on the trivet 5, a second automatic instruction section 812 that is activated when the flame overflow prevention mode is selected on the screen of FIG. 5(a) and instructs non-uniform flame power based on flame overflow information about the combustion flame overflowing outside the bottom surface of the cooking vessel, a third automatic instruction section 813 that is activated when the overflow prevention mode is selected on the screen of FIG. 5(a) and instructs non-uniform flame power based on bubbling information about bubbling in the cooking vessel, intrusion information about the approach of an intrusion near the stove burner 3, That is, there are provided a fourth automatic indication unit 814 which is activated when the overheating prevention mode is selected on the screen of FIG. 5(a) and which indicates uneven heating based on information as to whether or not an intruding object is present in the first area S1 of FIG. 7; a fifth automatic indication unit 815 which is activated when the user approach mode is selected on the screen of FIG. 5(a) and which indicates uneven heating based on information as to whether or not a human body is present in the second area S2 of FIG. 7, which is a type of intruding object information; and a sixth automatic indication unit 816 which is activated when the front temperature reduction mode is selected on the screen of FIG. 5(a) and which indicates uneven heating based on temperature information of the front part of the top plate 4, where the operation panel unit 43 and power switch 44, which are the operation unit of the stove 1, are provided. The manual instruction means 82 is also provided with a first manual instruction section 821 that instructs uneven heating based on the cooking vessel selection operation on the screen of FIG. 5(c), a second manual instruction section 822 that instructs uneven heating based on the overflow prevention mode selection operation on the screen of FIG. 5(b), and a third manual instruction section 823 that instructs uneven heating based on the front temperature reduction mode selection operation on the screen of FIG. 5(b).

In the case where the cooking vessel P has a planar shape that is longitudinal in one direction, the first automatic instruction unit 811 instructs non-uniform heating power to lower the heating power of the divided head regions located in the short direction of the cooking vessel. For example, as shown in Fig. 7, when the short direction of the cooking vessel P is the front-rear direction (when the cooking vessel P is long horizontally), the first automatic instruction unit 811 instructs non-uniform heating power to lower the heating power of the first and third divided head regions _31-1 , _31-3 . In this case, in STEP 12 of Fig. 8, the controller 6 changes the heating power of the first to fourth divided head regions _31-1 to _31-4 based on the heating power adjustment instruction information by the heating power adjustment button 432 as shown in Fig. 10(b). If the heating power of the first and third divided head regions 31 ₁ , 31 ₃ is set to the fourth stage heating power or more, there is a risk of flame overflow to the front and rear of the bottom surface of the cooking vessel, so the upper limit heating power of the first and third divided head regions 31 ₁ , 31 ₃ is set to the third stage heating power. When heating power adjustment instruction information of heating power 6 or more, which causes the heating power of the first and third divided head regions 31 ₁ , 31 ₃ to exceed the third stage heating power, is inputted by the heating power adjustment button 432, the heating power of the first and third divided head regions 31 ₁ , 31 ₃ is maintained at the third stage heating power, which is the upper limit heating power. As a result, even if the cooking vessel is longitudinal in one direction, the cooking vessel can be heated evenly without causing flame overflow in the short direction of the cooking vessel, and cooking performance is improved.

In the second automatic instruction section 812, when flame overflow occurs, the controller 6 instructs non-uniform heating power to lower the heating power of the divided head area (hereinafter referred to as the flame overflow divided head area) corresponding to the location where flame overflow occurs among the first to fourth divided head areas 31 ₁ to 31 _4. Then, in STEP 9 of FIG. 8, the controller 6 reduces the heating power of the flame overflow divided head area until the flame overflow is eliminated. In addition, the controller 6 sets the heating power at the time when the flame overflow is eliminated to the upper limit heating power, and even if the heating power adjustment instruction information that causes the heating power of the flame overflow divided head area to exceed this upper limit heating power is inputted by the heating power adjustment button 432, the heating power of the flame overflow divided head area is maintained at this upper limit heating power, and the controller 6 performs heating power adjustment in STEP 12 of FIG. 8 so that the heating power of the flame overflow divided head area does not exceed the upper limit heating power. This makes it possible to prevent flame overflow and suppress insufficient heating of the cooking vessel.

When the area ratio of the bubbling area (the area clouded by foaming) in the cooking vessel to the entire cooking vessel exceeds a predetermined threshold (e.g., 90%), the third automatic instruction unit 813 determines that overflow will occur soon and instructs uneven heating to reduce the heating power of one of the divided head regions, for example, the first divided head region 31 _1. Then, in STEP 9 of Fig. 8, the controller 6 reduces the heating power of the first divided head region 31 ₁ until the area ratio of the bubbling area falls below the threshold. The heat power when the area ratio of the bubbling part falls below the threshold is set to the upper limit heat power of the first divided head area _31-1 , and the heat power when the area ratio of the bubbling part reaches the threshold is set to the upper limit heat power of the second to fourth divided head areas _31-2 to _31-4 , and the heat power is adjusted in STEP 12 of Fig. 8 so that the heat power of each divided head area _31-1 to _31-4 does not exceed the respective upper limit heat power. This makes it possible to prevent overflow from the cooking vessel.

The fourth automatic instruction unit 814 judges whether an intrusion exists in the first area S1, and if an intrusion exists, it instructs a non-uniform fire power to lower the fire power of the division head region corresponding to the division area in the first area S1 where the intrusion exists. For example, as shown in Fig. 7, if an intrusion W such as a cloth is present in the second division area S1 ₂ , it instructs a non-uniform fire power to lower the fire power of the second division head region 31 _2. In this case, in STEP 12 of Fig. 8, the controller 6 changes the fire power of the first to fourth division head regions 31 ₁ to 31 ₄ as shown in Fig. 10(c) based on the fire power adjustment instruction information by the fire power adjustment button 432. If the fire power of the second division head region 31 ₂ is set to the fourth fire power or higher, the intrusion W will be heated strongly, so the upper limit fire power of the second division head region 31 ₂ is set to the third fire power. Then, the heat is adjusted in STEP 12 so that the heat of the second divided head region ₃₁₂ does not exceed the heat of the third stage. This makes it possible to prevent objects that have entered the vicinity of the stove burner 3 from being strongly heated.

The fifth automatic instruction unit 815 determines whether or not a human body is present in the second area S2 as an intrusion, and if a human body is present, it instructs uneven firepower to lower the firepower of the divided head area corresponding to the divided area in the second area where the human body is present. For example, if a human body is present in the first divided area _S2-1 of the second area S2, it instructs uneven firepower to lower the firepower of the first divided head area _31-1 . In this case, in STEP 12 of Fig. 8, the controller 6 changes the firepower of the first to fourth divided head areas _31-1 to _31-4 as shown in Fig. 10(d) based on the firepower adjustment instruction information by the firepower adjustment button 432. If the firepower of the first divided head area _31-1 is set to the third stage firepower or higher, the user may feel hot, so the upper limit firepower of the first divided head area _31-1 is set to the second stage firepower. Then, the heat is adjusted in STEP 12 so that the heat in the first divided head region ₃₁₁ does not exceed the heat in the second stage. The reason why the second area S2 for determining whether or not a human body is present is made larger than the first area S1 is to ensure higher safety for the human body.

The sixth automatic instruction unit 816 acquires the temperature of the front part of the top plate 4 from the temperature analysis of the infrared image of the infrared camera as the burner vicinity information acquisition means 7, and when the temperature of the front part of the top plate 4 becomes equal to or higher than a predetermined temperature (for example, 50°C), it instructs the uneven heating power to lower the heating power of the first divided head area _31.1 . Then, in STEP 9 of FIG. 8, the controller 6 reduces the heating power of the first divided head area _31.1 until the temperature of the front part of the top plate 4 falls below the predetermined temperature. In addition, the heating power at the time when the temperature of the front part of the top plate 4 falls below the predetermined temperature is set to the upper limit heating power, and the heating power adjustment is performed in STEP 12 of FIG. 8 so that the heating power of the first divided head area _31.1 does not exceed this upper limit heating power. This prevents the user from feeling hot when touching the operation panel unit 43 or the power switch 44.

The first manual instruction unit 821 instructs the uneven heating power to lower the heating power of the divided head regions located in the short-side direction of the cooking vessel selected by the cooking vessel selection operation in Fig. 5(c). For example, if a horizontally long vessel is selected, the uneven heating power is instructed to lower the heating power of the first and third divided head regions 31 ₁ and 31 ₃ located in the short-side direction of the cooking vessel. In this case, in STEP 12 in Fig. 8, the controller 6 changes the heating power of the first to fourth divided head regions 31 ₁ to 31 ₄ as shown in Fig. 10(b) based on the heating power adjustment instruction information by the heating power adjustment button 432. This is the same as when uneven heating power is instructed by the first automatic instruction unit 811. As a result, even if the cooking vessel is long in one direction, the cooking vessel can be heated evenly without causing flame overflow in the short-side direction of the cooking vessel, improving cooking performance.

The second manual instruction section 822 instructs uneven heating power to lower the heating power of some of the divided head regions, for example, the first divided head region 31 _1. Then, when a container of φ24 to φ28 is selected on the screen of Fig. 5(d), the controller 6 changes the heating power of the first to fourth divided head regions 31 ₁ to 31 ₄ in STEP 12 of Fig. 8 as shown in Fig. 10(e) based on the heating power adjustment instruction information by the heating power adjustment button 432. That is, the upper limit heating power of the first divided head region 31 ₁ is set to the third heating power, and the upper limit heating power of the second to fourth divided head regions 31 ₂ to 31 ₄ is set to the sixth heating power, and the heating power adjustment is performed in STEP 12 so that the heating power of each divided head region 31 ₁ to 31 ₄ does not exceed the respective upper limit heating power. This makes it possible to suppress the occurrence of overflow. The upper limit heat power of the second to fourth divided head regions 31 ₂ to 31 ₄ is variably set according to the size of the cooking vessel.

In the third manual instruction section 823, an uneven heat is instructed to lower the heat of the first divided head region _31.1 . Then, in STEP 12 of Fig. 8, the controller 6 changes the heat of the first to fourth divided head regions _31.1 to _31.4 as shown in Fig. 10(f) based on the heat adjustment instruction information by the heat adjustment button 432. That is, the upper limit heat of the first divided head region _31.1 is set to the second stage heat, and the heat adjustment in STEP 12 is performed so that the heat of the first divided head region _31.1 does not exceed the second stage heat. This suppresses heating of the front part of the top plate 4, and prevents the user from feeling hot when touching the operation panel section 43 or the power switch 44.

It is also possible to select multiple modes on the screen of Fig. 5(a). When multiple modes are selected, the heat power of each of the partition head regions 31 ₁ to 31 ₄ is controlled to be the lowest heat power among the heat powers of the partition head regions 31 ₁ to 31 ₄ instructed by the multiple automatic instruction units corresponding to the selected multiple modes.

Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited thereto. For example, in the above embodiment, the stove burner 3 has a flame port 34 on the outer periphery of the burner head portion 31, but the burner burner 3 may have a flame port on the upper surface of the burner head portion 31. In addition, in the above embodiment, the number of divided head regions of the burner head portion 31 is four, but it may be other than four. Furthermore, in the above embodiment, the burner vicinity information acquisition means 7 is installed on the underside of the range hood RH, but it is also possible to install the burner vicinity information acquisition means elsewhere, for example, on the wall surface behind the stove 1. In addition, the infrared camera of the above embodiment and a distance sensor that measures the distance between the stove and the human body may be used together as the burner vicinity information acquisition means.

1... stove, 3... stove burner, 31... burner head section, ₃₁₁ to ₃₁₄ ... divided head area, 34... flame port, ₃₉₂₁ to ₃₉₂₄ ... opening/closing valve (valve means), ₃₉₃₁ to ₃₉₃₄ ... flame control valve (valve means), 432... flame control button (flame power instruction section), 6... controller (control means), 7... burner vicinity information acquisition means, 8... non-uniform flame power instruction means, 81... automatic instruction means, 82... manual instruction means.

Claims (5)

A cooking system including a stove provided with a stove burner having a burner head portion having a number of flame ports formed therein,
The stove includes a flame power instruction unit for inputting flame power adjustment instruction information for a stove burner by a user, and adjusts the flame power of the stove burner based on the flame power adjustment instruction information input to the flame power instruction unit,
The burner head portion has a plurality of divided head regions divided in a circumferential direction, and is provided with a valve means capable of individually adjusting the heat power of the plurality of divided head regions, a control means for controlling the valve means, and a non-uniform heat power instruction means for instructing a non-uniform heat power that makes the heat power of the plurality of divided head regions non-uniform,
The control means, when non-uniform heat power is instructed by the non-uniform heat power instruction means, executes non-uniform heat power control to make the heat powers of the multiple divided head regions non-uniform, and when heat power adjustment instruction information is input by the heat power instruction unit while executing the non-uniform heat power control, executes control to increase or decrease the heat powers of the multiple divided head regions based on the heat power adjustment instruction information while keeping the heat powers of the multiple divided head regions non-uniform . 2. A heating cooking system as described in claim 1 , characterized in that, when the uneven heat control is executed, when heat adjustment instruction information is input in the heat instruction unit such that the heat of any of the plurality of divided head areas exceeds a predetermined upper limit heat, the control means executes control to maintain the heat of the divided head area whose heat exceeds the upper limit heat at the upper limit heat. A cooking system including a stove provided with a stove burner having a burner head portion having a number of flame ports formed therein,
The stove includes a flame power instruction unit for inputting flame power adjustment instruction information for a stove burner by a user, and adjusts the flame power of the stove burner based on the flame power adjustment instruction information input to the flame power instruction unit,
The burner head portion has a plurality of divided head regions divided in a circumferential direction, and is provided with a valve means capable of individually adjusting the heat power of the plurality of divided head regions, a control means for controlling the valve means, and a non-uniform heat power instruction means for instructing a non-uniform heat power that makes the heat power of the plurality of divided head regions non-uniform,
The control means, when the non-uniform firepower instruction means instructs non-uniform firepower, executes non-uniform firepower control to make the firepowers of the plurality of divided head regions non-uniform;
The heating and cooking system further comprises a burner vicinity information acquisition means for acquiring burner vicinity information representing the condition in the vicinity of the stove burner , and the uneven heat power indication means has an automatic indication means for indicating uneven heat power based on the burner vicinity information. The heating and cooking system described in claim 3, characterized in that the burner vicinity information includes at least one of cooking vessel information regarding a cooking vessel placed above the stove burner, flame overflow information regarding a combustion flame that has overflowed outside the bottom surface of the cooking vessel, and intrusion object information regarding the approach of an intrusion object near the stove burner. 5. The cooking system according to claim 1 , wherein the non-uniform heating power instruction means includes a manual instruction means for instructing the non-uniform heating power by a user's operation.

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