JP2022076561A - Heating cooking system - Google Patents

Abstract

To provide a heating cooking system equipped with monitoring means for monitoring a monitored area around a cooking stove burner, which can suppress excessive combustion limit of the cooking stove burner.SOLUTION: A burner head portion 31 of a cooking stove burner 3 has a plurality of division head areas 311 to 314 divided in a circumferential direction. Monitoring areas S1 and S2 by monitoring means are divided into a plurality of division areas S11 to S14, and S21 to S24 corresponding to the plurality of division head areas 311 to 314. When monitoring information in each division area obtained by the monitoring means satisfies a predetermined condition, for example, if including information indicating the existence of an intrusion object W or information indicating the existence of a handle Pa, combustion limit is performed in the division head areas 311 and 312 corresponding to the division areas S11 and S12 where the intrusion object W or the handle Pa exist.SELECTED DRAWING: Figure 7

Description

The present invention comprises a stove burner having a burner head portion in which a large number of flame openings are formed, and a stove that heats an object to be heated by combustion in the stove burner, and at least a burner peripheral monitoring that monitors a monitoring area around the stove burner. With respect to a cooking system with means.

Conventionally, as this kind of cooking system, when the monitoring information that the user's hand etc. has approached the stove burner to some extent or more is obtained by the burner peripheral monitoring means, the combustion restriction such as weakening the heating power of the stove burner is restricted. It is known that it is done (see, for example, Patent Document 1).

In this case, even if the user's hand or the like approaches any of the front, rear, left, and right parts of the stove burner, combustion is restricted at all parts of the stove burner. Therefore, the cooking performance is adversely affected by the lack of heat of the stove burner.

Here, in order to ensure safety, it is sufficient to limit combustion at the stove burner where the user's hand or the like is close. Then, in order not to adversely affect the cooking performance, it is desirable to suppress the combustion restriction more than necessary.

Japanese Unexamined Patent Publication No. 2016-20949

In view of the above points, it is an object of the present invention to provide a cooking system capable of suppressing the combustion restriction of the stove burner more than necessary.

In order to solve the above problems, the present invention includes a conroburner having a burner head portion in which a large number of flame openings are formed, and a conro that heats an object to be heated by combustion in the conroburner, and at least around the conroburner. In the heating cooking system including the burner peripheral monitoring means for monitoring the monitoring area, the burner head portion has a plurality of compartmentalized head areas divided in the circumferential direction, and the stove individually determines the thermal power of these plurality of compartmentalized head areas. It is provided with an adjustable valve means and a control means for controlling the valve means, and the monitoring area by the burner peripheral monitoring means is divided into a plurality of divided areas corresponding to a plurality of divided head areas, and the control means is around the burner. When the monitoring information in each division area acquired by the monitoring means satisfies a predetermined condition, it is characterized in that combustion limit control is executed in the division head area corresponding to the division area satisfying the predetermined condition. And.

According to the present invention, since the monitoring information in each division area acquired by the burner peripheral monitoring means is limited to combustion only in the division head region corresponding to the division area satisfying a predetermined condition, the combustion restriction more than necessary is suppressed. Therefore, it is possible to suppress an adverse effect on cooking performance.

Here, it is desirable that the above-mentioned predetermined condition is a case where the monitoring information in the divided area includes intruder information indicating that an intruder exists in the divided area. According to this, it is possible to prevent the intruder from being strongly heated by the combustion restriction of the division head region corresponding to the division area where the intruder exists.

Further, the predetermined condition may be a case where the monitoring information in the divided area includes the handle information indicating that the handle of the cooking container as the object to be heated exists in the divided area. According to this, it is possible to prevent the handle from being strongly heated by the combustion restriction of the division head region corresponding to the division area where the handle is present, and the user does not feel hot when grasping the handle.

Further, in this case, a temperature detecting means capable of detecting the temperature of the handle is provided, and when the temperature of the handle detected by the temperature detecting means is lower than the predetermined temperature, in the dividing head area corresponding to the dividing area where the handle exists. It is also possible not to execute the combustion limit control of. According to this, when the temperature of the handle is low, the combustion is not unnecessarily restricted, and the adverse effect on the cooking performance can be suppressed more effectively.

The perspective view which shows the installation state of the cooking system of embodiment of this invention. The perspective view of the main part of the stove provided in the cooking system of embodiment. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. The perspective view of the disassembled state of the stove burner provided in the stove provided in the cooking system of embodiment. An enlarged plan view of an operation panel portion provided on the top plate of the stove provided in the cooking system of the embodiment. A perspective view seen from diagonally below the range hood provided in the cooking system of the embodiment. The plan view which shows the monitoring area set in the cooking system of embodiment. The flow diagram which shows the control content about the combustion limit control performed by the control means of the stove provided in the cooking system of embodiment. FIG. 5 is a flow chart showing the contents of the monitoring information discrimination process included in the control of FIG.

With reference to FIGS. 1 to 3, the stove 1 provided in the cooking system according to the embodiment of the present invention is built-in so as to drop the stove main body 2 into the stove opening CTa formed in the counter top CT of the system kitchen. It is a type stove and is equipped with two left and right stove burners 3 and 3. Each stove burner 3 has a burner head portion 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 main body 2. Further, the stove 1 is provided with 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 the opening 41 for each burner and the burner head portion 31 of each stove burner 3. Further, a pair of left and right operation panel portions 43, 43 for the stove burners 3 and 3 and a power switch 44 in the central portion are provided on the front portion of the top plate 4.

With reference to FIG. 4, the burner head portion 31 of each stove burner 3 has four first to _fourth divided head regions 31 ₁ to 34 divided in the circumferential direction. Specifically, the burner head portion 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 on the upper surface of the lower head member 32 at equal intervals in the circumferential direction, and four radial ribs 331 are also erected on the lower surface of the upper head member 33 at equal intervals in the circumferential direction. It is suspended. Further, the inner peripheral portion of the upper head member 33 is provided with a notch portion 332 for phasing to engage with the upward convex portion 322 provided on the inner peripheral portion of the lower head member 32. Then, by placing the upper head member 33 on the lower head member 32 in a phase-determined state, the lower edge of each radial rib 331 of the upper head member 33 is placed on the upper edge of each radial rib 321 of the lower head member 32. In contact with each other, the burner head portion 31 has a front first division head area 31 ₁ , a right second division head area 31 ₂ , a rear third division head area 31 ₃ , and a left fourth division. It is divided into a head area ₃ 14. Further, on the outer peripheral portion of the upper head member 33, a large number of flame openings 34 from which the air _- fuel mixture is ejected from the divided head regions 31 ₁ to 314 are formed.

The burner head portion 31 is installed on an annular burner body 30 in which a plurality of columns 301 whose lower ends are fitted into a plurality of support holes 211 formed in a fixed burner holder 21 in the stove main body 2 are vertically provided. On the burner body 30, a mixing pipe portion 302 extending downward from the central portion of _each of the division head regions 31 ₁ to 314 is vertically installed. The burner holder 21 is provided with _first to _fourth nozzles 351 to 354 facing the lower end opening of the mixing pipe portion 302 extending from the first to _fourth division head regions 31 ₁ to 314. Further, the lower head member 32 is provided with a guide plate portion 323 facing the upper end opening of each mixing pipe portion 302 with a slight gap. Then, the fuel gas injected from _each nozzle 351 to 354 collides with _each guide plate portion 323 and diffuses into _each division head region 31 ₁ to 314, and each mixing pipe portion is generated by the radial venturi effect. Primary air is sucked in from the lower end opening of 302 so that an air-fuel mixture is generated. In FIG. 4, the upper head member 33 is represented by a perspective view viewed from diagonally below, and the lower head member 32 and the burner holder 21 are represented by a perspective view viewed from diagonally above.

Further, each stove burner 3 has an ignition electrode 36 that sparks under the control of a controller 6 that is a control means when an ignition operation is performed by a point fire extinguishing button 432 provided on the operation panel unit 43, and a thermocouple 37 as a flame detection element. , A pot bottom temperature sensor 38 that abuts on the bottom surface of the cooking container, which is the object to be heated, and detects the temperature thereof is attached to the trivet 5. The ignition electrode 36 is provided so as to face the flame port 34 of the _third division head region 313, and the thermocouple 37 faces the flame port 34 of each of the first to _fourth division head regions 31 ₁ to 314. Four are provided. Further, the pot bottom temperature sensor 38 is arranged in the central space surrounded by the burner body 30 and the burner head portion 31 of each stove burner 3. The upper head member 33 is provided with a tongue piece-shaped cover portion 333 that projects radially outward just above the ignition electrode 36 so that spillage does not fall on the ignition electrode 36.

A safety valve 391 is interposed in the gas supply path 39 for each stove burner 3. The safety valve 391 is opened under the control of the controller 6 when the ignition operation is performed by the point fire extinguishing button 432 provided on the operation panel unit 43, and when the fire extinguishing operation is performed by the point fire extinguishing button 432 or when the pot bottom temperature sensor 38 detects overheating of the cooking container. The valve is closed under the control of the controller 6 when the electromotive force of the thermocouple 37 corresponding to the dividing head region that should be burning decreases and a misfire is detected. Further, the gas supply path 39 is branched into _first to _fourth branch paths 391 to 394 connected to the _first to _fourth nozzles 351 to 354 on the downstream side of the safety valve 391. The first to fourth on-off valves 392 ₁ to 392 ₄ and the _first to _fourth thermal power control valves 393 ₁ to 393 ₄ are interposed in the first to fourth branch paths 391 to 394. It is set up. The on-off valves 392 ₁ to 392 ₄ and the thermal power control valves 393 ₁ to ₃₉₃₄ constitute a thermal power control means capable of individually adjusting the thermal power of the head regions 31 ₁ to ₃₁₄ including extinguishing the fire. In this embodiment, the thermal power of _each division head region 31 ₁ to 314 can be adjusted in 10 stages from the minimum 1st stage to the maximum 10th stage by _each thermal power control valve 393 ₁ to 3934.

As shown in FIG. 5, each operation panel unit 43 is arranged with a display unit 431 and various buttons including a point fire extinguishing button 432 and a thermal power adjustment button 433. The display unit 431 is provided with a thermal power display unit 434 having first to _fourth display areas 434 ₁ to 434 ₄ corresponding to the first to fourth division head areas 31 ₁ to 314 of the stove burner 3. There is. In each display area 434 ₁ to 434 ₄ , triple display lines inside and outside are arranged, and the number of display lines that light up as the thermal power of _each division head area 31 ₁ to 314 becomes stronger increases from the inside to the outside. Increase towards. Further, by long-pressing any one of the first to fourth display areas 434 ₁ to 434 ₄ , the thermal power of the division head region corresponding to this display area can be changed by operating the thermal power adjustment button 433.

Further, as shown in FIG. 6, the cooking system of the present embodiment includes a pair of left and right burner peripheral monitoring means 7 and 7 composed of infrared cameras arranged on the lower surface of the range hood RH located above the counter top CT. ing. Each burner peripheral monitoring means 7 captures a bird's-eye view of a predetermined range including the periphery of each stove burner 3. Then, as shown in FIG. 7, within the imaging range of each burner peripheral monitoring means 7, a square area having one side centered on the center of each stove burner 3 having a predetermined length (for example, about 30 cm) is the first. The monitoring area S1 is defined, and the area within a predetermined distance (for example, about 30 cm) from the outer edge of the top plate 4 of the stove 1 is designated as the second monitoring area S2. Further, the first and second monitoring areas S1 and S2 are divided into a first division head area 31 ₁ in front of the stove burner 3, a second division head area 31 ₂ on the right side, and a third division head area 31 ₃ in the rear. And the 4th division head area ₃ 14 on the left side, the 1st division area S1 ₁ and S2 ₁ on the front and the 2nd division area S1 ₂ and S2 ₂ on the right and the 3rd division area S1 ₃ on the rear. , S2 ₃ and the 4th division area S1 ₄ and S2 ₄ on the left side. Note that FIG. 7 shows the first and second monitoring areas S1 and S2 for the stove burner 3 on the left side, and the first and second monitoring areas S1 and S2 for the stove burner 3 on the right side are also symmetrical with respect to FIG. The monitoring area of is set.

When the monitoring information in each of the division areas S1 ₁ to S1 ₄ and S2 ₁ to S2 ₄ acquired by the burner peripheral monitoring means 7 satisfies the predetermined conditions, the controller 6 corresponds to the division areas satisfying the predetermined conditions. It is configured to perform combustion limit control in the compartmentalized head region. Hereinafter, this control will be described with reference to FIGS. 8 and 9.

The processing related to the combustion limit control starts when the power switch 44 is turned on. First, in STEP 1, the burner peripheral monitoring means 7 acquires the monitoring information in each division area S1 ₁ to S1 ₄ and S2 ₁ to S2 ₄ . .. Next, the process proceeds to STEP2, and a monitoring information determination process for determining whether or not the acquired monitoring information satisfies a predetermined condition is performed.

In the monitoring information discrimination process, first, in STEP 100, an intruder enters the division areas S1 ₁ to S1 ₄ in which the monitoring information in each division area S1 ₁ to S1 ₄ of the first monitoring area S1 is one of the predetermined conditions. Determine if it contains intruder information that indicates its existence. If the monitoring information in any of the division areas _{S1 1} to S14 contains intruder information, the process proceeds to STEP 101, stores the division area containing the intrusion information, and then proceeds to STEP 102. For example, as shown in FIG. 7, when an intruder W such as a cloth is present in the second division area S1 ₂ on the left side of the first monitoring area S1, the second division area S1 ₂ is stored. If the monitoring information in any of the division areas _{S1 1} to S14 does not include the intruder information, the process proceeds from STEP 100 to STEP 102 without going through STEP 101.

In STEP 102, the handle of the cooking container, which is the object to be heated, is located in the division areas S1 ₁ to S1 ₄ in which the monitoring information in each division area S1 ₁ to S1 ₄ of the first monitoring area S1 is one of the other predetermined conditions. Determine if it contains a handle that indicates its existence. If the monitoring information in any of the division areas S1 ₁ to _S14 includes the handle information, the process proceeds to STEP 103, which is a burner peripheral monitoring means 7 that is also used as a temperature detecting means capable of detecting the temperature of the handle. From the temperature analysis of the infrared image of the infrared camera, it is determined whether or not the temperature of the handle is equal to or higher than a predetermined temperature (for example, 50 ° C.). Then, if the temperature of the handle is equal to or higher than the predetermined temperature, the process proceeds to STEP 104, the division area including the handle information is stored, and then the process proceeds to STEP 105. For example, as shown in FIG. 7, when the handle Pa of the cooking container P exists in the first division area S1 ₁ in front of the first monitoring area S1 and the temperature of the handle Pa is equal to or higher than the predetermined temperature, the first division Area S1 ₁ is stored. If the monitoring information in any of the division areas S1 ₁ to _S14 does not include the handle information, the process directly proceeds from STEP 102 to STEP 105, and even if the temperature of the handle is lower than the predetermined temperature, the process directly proceeds from STEP 103 to STEP 105.

In STEP 105, the human body (clothes) as an intruder is included in the division areas S2 ₁ to S2 ₄ in which the monitoring information in each division area S2 ₁ to S2 ₄ of the second monitoring area S2 is still one of the predetermined conditions. It is determined whether or not it contains human body information indicating that (including) exists. If the monitoring information in any of the division areas S2 ₁ to S2 ₄ contains intruder information, the process proceeds to STEP 106, the division area containing the human body information is stored, and then the monitoring information determination process is terminated. do. If the monitoring information in any of the division areas S2 ₁ to S2 ₄ does not include the human body information, the monitoring information discrimination process is terminated without going through STEP 106. The area for monitoring the existence of the human body is set to the second monitoring area S2, which is wider than the first monitoring area S1, in order to ensure higher safety for the human body.

When the monitoring information discrimination process is performed in STEP 2, it is next determined in STEP 3 whether or not the ignition operation by the point fire extinguishing button 432 is performed. Until the ignition operation is performed, the process returns to STEP 1 repeatedly, and when the ignition operation is performed, the process proceeds to STEP 4 to open the safety valve 391 and the first to fourth on-off valves 392 ₁ to 392 ₄ . Gas is supplied to all the division head regions 31 ₁ to ₃ 14 of the stove burner 3, and the stove burner 3 is ignited by sparking with the ignition electrode 36. It should be noted that the thermal power of _each division head region 31 ₁ to 314 at the time of ignition is set to the fourth stage suitable for ignition. Next, in STEP 5, it is determined whether or not ignition is detected by the thermocouple 37, and if ignition is not detected, after notifying the ignition failure in STEP 6, the process proceeds to STEP 7, and the safety valve 391 and the first to fourth opening / closing are performed. The fire extinguishing control of the stove burner 3 for closing the valves 392 ₁ to 392 ₄ is performed.

When ignition is detected, in STEP8, it is determined whether or not there is a division area stored in the monitoring information determination process in STEP2. Then, if there is a stored division area, the process proceeds to STEP 9, and combustion limit control is executed in the division head region of the stove burner 3 corresponding to the stored division area. For example, as described above, the second division area S1 ₂ on the right side where the intruder W of the first monitoring area S1 exists, and the first division area S1 ₁ in front of the handle Pa of the first monitoring area S1. If is stored, combustion that reduces the thermal power in the second division head region 31 ₂ on the right side of the stove burner 3 and the first division head region 31 ₁ in front of the stove burner 3 from the fourth stage to the third stage at the time of ignition. Perform limit control.

Next, in STEP 10, the monitoring information in each of the divided areas S1 ₁ to S1 ₄ and S2 ₁ to S2 ₄ is acquired again by the burner peripheral monitoring means 7, and in STEP 11, the same monitoring as above based on the monitoring information acquired in STEP 10 is acquired. Performs information discrimination processing. Next, in STEP 12, it is determined whether or not there is a division area stored in the monitoring information determination process in STEP 11. Then, if there is a stored division area, the process proceeds to STEP 13, and combustion limit control is executed in the division head region of the stove burner 3 corresponding to the stored division area. Next, it is determined in STEP 14 whether or not the fire extinguishing operation has been performed by the point fire extinguishing button 432, and if the fire extinguishing operation has not been performed, the process proceeds to STEP 15 and an instruction to change the heat power is issued by the heat power adjustment button 433 or automatic cooking. Determine if it was done. When the instruction to change the thermal power is issued, the thermal power is changed in STEP 16 and then returned to STEP 10. When the instruction to change the thermal power is not issued, the process returns to STEP 10 without going through STEP 16. Even when the thermal power is changed in STEP 16, the combustion limit control in the division head region of the stove burner 3 corresponding to the stored division area continues. When the fire extinguishing operation is performed, the fire extinguishing control is performed by proceeding from STEP 14 to STEP 7.

When it is determined in STEP 8 that there is no stored division area, the process proceeds to STEP 17 to determine whether or not an instruction to change the thermal power has been issued. When an instruction to change the thermal power is given, change the thermal power in STEP 18 and then proceed to STEP 19. If no instruction to change the thermal power is given, the process proceeds to STEP 19 without going through STEP 18. In STEP 19, it is determined whether or not the fire extinguishing operation has been performed, and if the fire extinguishing operation has not been performed, the process proceeds to STEP 10, and if the fire extinguishing operation has been performed, the process proceeds to STEP 7 to perform fire extinguishing control. When it is determined in STEP 12 that there is no stored division area, the combustion restriction control is canceled in STEP 20 and then the process proceeds to STEP 17.

According to the present embodiment, the monitoring information in each of the division areas S1 ₁ to S1 ₄ and S2 ₁ to S2 ₄ acquired by the burner peripheral monitoring means 7 burns only in the division head region corresponding to the division area satisfying the predetermined conditions. Since it is limited, it is possible to suppress the combustion restriction more than necessary and suppress the adverse effect on the cooking performance. One of the above-mentioned predetermined conditions is when the monitoring information in _each of the divided areas S1 ₁ to S14 of the first monitoring area S1 includes the intruder information indicating that the intruder W exists in the divided area. Alternatively, since the monitoring information in each of the divided areas S2 ₁ to S2 ₄ of the second monitoring area S2 includes the human body information indicating that the human body, which is one of the intruders, exists in the divided area, the intrusion occurs. By limiting the combustion of the division head region corresponding to the division area where the object W or the human body exists, it is possible to prevent the invading object W or the human body from being strongly heated.

Further, another one of the above-mentioned predetermined conditions is that the monitoring information in _each of the divided areas S1 ₁ to S14 of the first monitoring area S1 provides the handle information indicating that the handle Pa of the cooking container P exists in the divided area. Since it is included, it is possible to prevent the handle Pa from being strongly heated by the combustion restriction of the division head area corresponding to the division area where the handle Pa exists, and the user may feel hot when grasping the handle. not. Further, when the temperature of the handle Pa is lower than the predetermined temperature, the division area in which the handle Pa exists is not stored, so that the combustion limit control in the division head region corresponding to this division area is not executed. Therefore, when the temperature of the handle Pa is low, the combustion is not unnecessarily restricted, and the adverse effect on the cooking performance can be suppressed more effectively.

Although the embodiments of the present invention have 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 peripheral portion of the burner head portion 31, but may have a flame port on the upper surface of the burner head portion 31. Further, in the above embodiment, the number of the dividing head regions of the burner head portion 31 is 4, but it may be other than 4. Further, in the above embodiment, the burner peripheral monitoring means 7 is installed on the lower surface of the range hood RH, but it is also possible to install the burner peripheral monitoring means on the wall surface behind the stove 1, for example. Further, when the stove 1 includes a plurality of stove burners 3 as in the above embodiment, the first and second monitoring areas S1 and S2 for one stove burner 3 and the first and second for the other stove burner 3 The monitoring areas S1 and S2 may partially overlap.

1 ... stove, 3 ... stove burner, 31 ... burner head part, 31 ₁ to 31 ₄ ... division head area, 34 ... flame port, 392 ₁ to 392 ₄ ... on-off valve (valve means), 393 ₁ to 393 ₄ ... thermal power Control valve (valve means), 6 ... controller (control means), 7 ... burner peripheral monitoring means, S1, S2 ... monitoring area, S1 ₁ to S1 ₄ , S2 ₁ to S2 ₄ ... division area, W ... intruder, P … Cooking container, Pa… Handle.

Claims (4)

It is provided with a stove burner having a burner head portion in which a large number of flame openings are formed, and is provided with a stove that heats an object to be heated by combustion in the stove burner and a burner peripheral monitoring means for monitoring at least a monitoring area around the stove burner. In the cooking system
The burner head portion has a plurality of compartmentalized head regions divided in the circumferential direction, and the stove has a valve means capable of individually adjusting the thermal power of the plurality of compartmentalized head regions and a control means for controlling the valve means. Prepare,
The monitoring area by the burner peripheral monitoring means is divided into multiple divided areas corresponding to multiple divided head areas.
When the monitoring information in each division area acquired by the burner peripheral monitoring means satisfies the predetermined condition, the control means executes the combustion limit control in the division head region corresponding to the division area satisfying the predetermined condition. A cooking system characterized by being composed. The cooking system according to claim 1, wherein the predetermined condition is a case where the monitoring information in the divided area includes intruder information indicating that an intruder is present in the divided area. Claim 1 or 2 is characterized in that the predetermined condition includes the handle information indicating that the handle of the cooking container, which is the object to be heated, is present in the divided area. The cooking system described. The cooking system according to claim 3, further comprising a temperature detecting means capable of detecting the temperature of the handle, and the handle is present when the temperature of the handle detected by the temperature detecting means is lower than a predetermined temperature. A cooking system characterized in that the combustion limit control in the division head region corresponding to the division area is not executed.

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