JP2584933B2 - Cooking equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking apparatus for stewing and cooking an object to be cooked in a cooking container.

[0002]

2. Description of the Related Art In a conventional cooking apparatus, a user monitors the boiling of an object to be cooked in a cooking vessel, and when the user recognizes the boiling, the heating power is manually reduced to stew the object to be cooked.

[0003]

However, in the conventional cooking apparatus, it takes time to monitor the boiling, and it is necessary to adjust the heating power manually. The degree depends on the intuition of the user, so that there is a disadvantage that it is difficult to obtain a heating power suitable for efficiently cooking the object to be cooked. Therefore, the inventors have found that the gas burner that heats the cooking container containing the object to be cooked, the temperature sensor that detects the temperature of the object to be cooked, and the rising speed of the detected temperature Th detected by the temperature sensor are reduced. When the food is cooked, the boiling detection means for determining that the food is in a boiling state, and a gas burner after the boiling determination, which are weaker than before the boiling and which are capable of maintaining the boiling state, are experimentally obtained, and the boiler operated with this heating power A cooking device having a maintenance control means was prototyped. However, for example, in the case of cooking curry or stew, even if the cooking is performed by applying a heating power for maintaining boiling, after the roux is put, the fluidity of the cooked food is deteriorated, and it is easy for scorching to occur. Curry and stew splattered when boiled, making it inconvenient to use. An object of the present invention is to provide a cooking apparatus having a boiling maintenance control unit that operates a heating source after boiling determination with a heating power that is weaker than before boiling and that maintains a boiling state, even when cooking an object such as curry. An object of the present invention is to control the temperature of the object to be cooked properly, perform efficient stewing, and improve the usability.

[0004]

In order to solve the above-mentioned problems,
The present invention provides a heating source that heats a cooking vessel containing an object to be cooked, a combustion controller that controls a heating power of the heating source, and an electric output corresponding to a temperature of the object to be cooked to the combustion controller. A temperature sensor for sending out, wherein the combustion controller is configured to determine when the rate of increase in the detected temperature Th detected by the temperature sensor is low, and to determine that the object to be cooked is in a boiling state; Boiling maintenance control means for operating the heating source with a heating power which is weaker than before boiling and maintains the boiling state after the boiling determination , and a detected temperature Th at which an equilibrium state is established after the boiling determination, that is, an equilibrium temperature at any time T _H, and the equilibrium temperature detecting means for detecting, after actuation of the boiling maintenance control means, when it is as to satisfy the detected temperature Th ≧ equilibrium temperature T _H + predetermined temperature w is boiled by the boiling maintenance control means The heating power for maintaining A configuration including a setting change unit that changes the heating temperature to a side where the heating power becomes weaker than before the temperature reaches the equilibrium temperature T _H + the predetermined temperature w is adopted.

[0005]

The heating source heats the cooking container containing the object to be cooked. The boiling detecting means determines that the object to be cooked is in a boiling state when the rising speed of the detected temperature Th decreases. After the boiling determination, the boiling maintenance control means activates the heating source with a heating power that is weaker than before the boiling and maintains the boiling state. After boiling determination, equilibrium temperature detect means, a state of equilibrium
The value of the detected temperature Th was equilibrated temperature T _H, Sui equilibrium temperature T _H
Update when. Setting changing means after actuation of the boiling maintenance control means, when it is as to satisfy the detected temperature Th ≧ equilibrium temperature T _H + predetermined temperature w is the heating power for boiling maintained by boiling maintenance control means, the equilibrium temperature Change to a side where the heating power becomes weaker than before reaching _TH + predetermined temperature w.

[0006]

The setting change means activates the boiling maintenance control means after the boiling judgment, and operates the heating source with a heating power which is weaker than before the heating and which maintains the boiling state. When satisfying ≧ equilibrium temperature _TH + predetermined temperature w, the heating power for maintaining the boiling by the boiling maintenance control means is set to a weaker heating power than before reaching the equilibrium temperature _TH + predetermined temperature w. Has been changed to. For this reason, even when cooking a subject such as a curry or a stew that has a poor fluidity after the roux is inserted and is liable to be scorched, the temperature of the subject is appropriately controlled and efficient. It can be stewed and can be cooked without the object to be scattered outside the cooking container, so that it is easy to use.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the gas table A
A cooking container 1 such as a pot containing an object 11 such as curry ingredients
2. A left cooking stove 1 for heating 2; a temperature sensor 2 with a built-in thermistor arranged to press the bottom of the pan;
A timer T for judging the quantity of 1; a boiling detecting means 31 having a timer Ta; and a time control means (boiling maintenance control means) 3 for burning the M burner 13 alternately with small fire and large fire.
2. A control unit 3 having an equilibrium temperature detecting means 33 for detecting the equilibrium temperature T _H and a setting changing means 34 and receiving an electric output of the temperature sensor 2. The gas table A has a gas consumption of 4100 kcal / h.
Right stove 4 with burner 41 and 1950 kcal /
It also has a grill 5 with a grill burner 51 having a gas consumption of h.

The left cooking stove 1 has an M burner 13 having a gas consumption of 2300 kcal, and is installed on the left side in the figure. The M burner 13 has an ignition electrode 1 for performing ignition.
4 and a thermocouple 15 which is burned by the combustion flame 10 to generate an electromotive force. In FIG. 2, 131 is a safety valve arranged in the gas line 132, and 133 is a main gas line 1 branched from the gas line 132.
The temperature control solenoid valve is disposed in the main gas pipe 134 of the sub gas pipe 135 and the sub gas pipe 135. When the switching solenoid valve 133 is in the closed state, the M burner 13 has a small fire, and when it is open, the M burner 13 has a large fire.

The timer T starts counting when the detected temperature Th detected based on the electric output sent from the temperature sensor 2 reaches 80 ° C., and starts counting when the detected temperature Th reaches 90 ° C. By stopping, the detected temperature Th becomes 8
The time Δt required to raise the temperature from 0 ° C. to 90 ° C. is measured.

The boiling detecting means 31 detects that the detected temperature Th is 90
A timer Ta for measuring a required time ta required to increase from 1 ° C. every 1 ° C. The required time ta is determined by a determination value tk ≧
When (3 × Δt + 25) / 11 and the rising speed of the detected temperature Th becomes extremely small, it is determined that the object to be cooked 11 such as a curry is in a boiling state, and the value of the detected temperature Th at the time of the boiling determination is determined. Detection signal 310 including the value of time required Δt
Is sent to the time control means 32 (see FIGS. 2 and 3).

The time control means 32 generates a boiling detection signal 310
The required time Δt is less than 24 seconds from the time when the is input (when the boiling detecting means 31 determines the boiling state),
If it is determined that the amount of the food 11 is small, the M burner 13 is alternately burned with a small fire for 20 seconds and a large fire for 3 seconds, and the required time Δt is 24 seconds or more. If it is determined that the amount of 11 is large, the M burner 1
3 is alternately burned with a small fire for 20 seconds and a large fire for 5 seconds. As described above, by the operation of the time control means 32, M
The burner 13 has a lower heating power than before boiling, and burns with a heating power that maintains the boiling state. The time control means 32
After actuation, it drops the detected temperature Th, when the detected temperature Th <an equilibrium temperature T _H -5 ° C., until the detected temperature Th ≧ equilibrium temperature T _H, opens the electromagnetic valve 133 for temperature control M of Burner 1
When the detected temperature Th rises and the detected temperature Th becomes equal to or more than the equilibrium temperature T _H + 10 ° C., the temperature regulating solenoid valve 1 is maintained until the detected temperature Th becomes less than the equilibrium temperature T _H + 8 ° C.
The valve 33 is closed to cause the M burner 13 to burn with a small flame. Then, when the the detected temperature Th ≧ equilibrium temperature T _H is satisfied, or when the detected temperature Th <equilibrium temperature T _H + 8 ° C. is established, in principle, the operation according to the original time control means 32 which has been performed until then return.

The equilibrium temperature detecting means 33 outputs the boiling detection signal 31
0, and the detected temperature Th is 100 ° C or more and 200 ° C
If the value is within the equilibrium measurement range of less than Tn, the latest value of the detected temperature Th sampled every 15 seconds is Tn, and the value Tn of the detected temperature Th sampled two times earlier is Tn− _2, and (Tn− Tn _-2 ) is −2 ° C. ≦ (Tn−Tn ₋₂ ) ≦
If condition 1 is satisfied that 2 ° C. is continuously satisfied seven times, Tn _′ is the seventh Tn that satisfies condition 1, and Tn− ₂ is Ts− ₂ when condition 1 is satisfied for the first time, then (T _{H ′)} −Ts) is −4 ° C. ≦
(T H _'-Ts) and the condition 2 that satisfy ≦ 4 ° C., when the conditions 1 and 2 are both satisfied, T _H at that _time' has a value between the equilibrium temperature T _H. Incidentally, until conditions 1 and 2 is satisfied both deals with the value of the detected temperature Th at the boiling determination as equilibrium temperature T _H. Further, in this embodiment, satisfied conditions 1 together once, T H _'as the equilibrium temperature T _H the value of the T _H' if it is detected is lower than the T _{H ',} the equilibrium temperature T _{H Has} been updated to its lower _{TH '} . When the detected temperature Th goes out of the equilibrium measurement range, the previously calculated equilibrium temperature _TH is stored in memory, and when the detected temperature Th enters the equilibrium measurement range again, the value is used.

The setting change means 34 determines that the required time Δt is 24
In the case of more than one second, after the operation of the time control means 32, which alternately repeats a small fire for 20 seconds and a large fire for 5 seconds, the detection temperature Th ≧ the equilibrium temperature T _H + 5 ° C., and then the detection temperature Th ≧
There is a timer TG that measures the time t required to reach the equilibrium temperature T _H + 10 ° C. (predetermined temperature w). If the required time t exceeds 60 seconds, the operation of the time control means 32 is temporarily stopped until the detected temperature Th <equilibrium temperature T _H + 8 ° C. is satisfied.
The burner 13 is forcibly burned with a small flame, and the detected temperature Th <
When the equilibrium temperature T _H + 8 ° C. is established, the operation of the time control means 32 is changed to a side in which a small fire is alternately repeated for 20 seconds and a large fire is repeated for 3 seconds to perform combustion. Incidentally, when the required time t is less than 60 seconds, until the detected temperature Th <equilibrium temperature T _H + 8 ° C. from the time when the detected temperature Th ≧ equilibrium temperature T _H + 10 ° C. is established is established, the operation of the time control means 32 Pause and M burner 1
3 is forcibly burned with a small flame, and the detected temperature Th <equilibrium temperature T
_{When H} + 8 ° C. is established, the time control means 32 is operated again to alternately repeat the small fire for 20 seconds and the large fire for 5 seconds.

Next, the operation of the control unit 3 having a microcomputer will be described with reference to FIGS. The user presses the stew key 61 on the operation panel 6,
The switch 17 is closed by pressing the point / fire extinguishing knob 16 and the safety valve 131 and a main valve (not shown) arranged downstream of the safety valve 131.
Is mechanically opened, the control unit 3 energizes the safety valve 131 and the temperature control solenoid valve 133 to maintain the valve open state, and energizes the ignition electrode 14.
The M burner 13 is ignited and starts burning. Step s1
In the microcomputer of the control unit 3,
It is determined whether or not the detected temperature Th has reached 80 ° C. If the detected temperature Th = 80 ° C. (Yes), the process proceeds to step s2. In step s2, the timer T starts, and proceeds to step s3. In step s3, the detected temperature T
It is determined whether or not h has reached 90 ° C., and the detected temperature Th = 90
In the case of ° C (Yes), the process proceeds to step s4. In step s4, the timer T is stopped, the value of t is stored as the required time Δt, and the determination value tk is stored as tk = (3 × Δt
+25) / 11, start the timer Ta, and proceed to step s5. In step s5, it is determined whether or not the detected temperature Th has risen by 1 ° C., and if it has risen by 1 ° C. (Yes), the process proceeds to step s6, where the time ta required to rise by 1 ° C. is equal to or more than the determination value tk. Is determined, and if it is less than the determination value tk (No), step s7
If the value is equal to or greater than the determination value tk (Yes), the process proceeds to step s8 (determine that the food is in a boiling state).
Incidentally, when it is determined that the required time ta ≧ determination value tk, the equilibrium temperature detecting means 33 is operated as described above to detect start the equilibrium temperature T _H, thereafter, until the conditions 1 and 2 is satisfied both the treats the value of the detected temperature Th at the boiling determination as equilibrium temperature T _H, when the conditions 1 and 2 are both satisfied, the value of the T _{H 'and} the equilibrium temperature T _H. In step s7, the timer Ta is restarted, and the process returns to step s5. Steps
In step 8, it is determined whether the time Δt required for the detected temperature Th to rise from 80 ° C. to 90 ° C. is less than 24 seconds. If the required time Δt ≧ 24 seconds (No), the process proceeds to step s9. If the required time Δt <24 seconds (Yes), the process proceeds to step s23. In step s9, the power supply to the temperature control solenoid valve 133 is stopped for 20 seconds, and the temperature control solenoid valve 133 is stopped.
Is closed and the M burner 13 is set to low heat, and for the next 5 seconds,
The switching solenoid valve 133 is energized, the switching solenoid valve 133 is opened, the M burner 13 is set to a large fire, and alternately repeated combustion is performed.
Proceed to step s10. In step s10, the detected temperature Th <determines whether the equilibrium temperature T _H -5 ° C., if the detected temperature Th <not an equilibrium temperature T _H -5 ℃ (No), the process proceeds to step s11, the detected temperature Th <equilibrium If the temperature is T _H -5 ° C. (Yes), the process proceeds to step s17. In step s11, it is determined whether the detected temperature Th ≧ equilibrium temperature T _H + 5 ℃, if not the detected temperature Th ≧ equilibrium temperature _{T H + 5 ℃ (No)} , the process returns to step s9, the detected temperature of Th
If ≧ equilibrium temperature T _H + 5 ° C., proceed to step s12. In step s12, the timer TG is started, and the process proceeds to step s13. At step s13, t of the timer TG
It is determined whether or not t ≦ 60 seconds. If t ≦ 60 seconds (Yes), the process proceeds to step s14. If t ≦ 60 seconds (No), the process proceeds to step s19. Steps
In 14, the detected temperature Th ≧ equilibrium temperature T _H + 10 a it is determined whether or not it ° C., if not the detected temperature Th ≧ equilibrium temperature _{T H + 10 ℃ (No)} , the process returns to step s13, the detected temperature T
If h ≧ equilibrium temperature _TH + 10 ° C. (Yes), the process proceeds to step s15. In step s15, the energization of the switching solenoid valve 133 is stopped, the switching solenoid valve 133 is closed, and the M burner 13 is set to low heat, and the process proceeds to step s16. In step s16, the detected temperature Th <the equilibrium temperature T _H + 8 ° C.
Is determined, the detected temperature Th <the equilibrium temperature T _H + 8 ° C.
If not (No), the process returns to step s15, and if the detected temperature Th <the equilibrium temperature T _H + 8 ° C. (Yes), the process returns to step s9. In step 17, the switching solenoid valve 13
3 and energizes the M burner 13 by opening the switching solenoid valve 133, and then proceeds to step s18. Step s1
If the 8, the detected temperature Th ≧ equilibrium temperature T it is determined whether or not a _H, not the detected temperature Th ≧ equilibrium temperature T _H (No),
Returning to step s17, if the detection temperature Th ≧ equilibrium temperature T _H (Yes), the flow returns to step s9. Step s1
In 9, the detected temperature Th ≧ equilibrium temperature T _H + 10 a it is determined whether or not it ° C., if not the detected temperature Th ≧ equilibrium temperature _{T H + 10 ℃ (No)} , the process proceeds to step s20, the detected temperature Th
If ≧ equilibrium temperature _TH + 10 ° C. (Yes), the process proceeds to step s21. In step s20, the detected temperature Th
It is determined whether or not the equilibrium temperature T _H + 5 ° C., and the detection temperature Th
<If the equilibrium temperature is not T _H + 5 ° C. (No), step s1
Returning to 9, the detected temperature Th <When the equilibrium temperature _{T H + 5 ℃ (Yes)} , the flow returns to step s9. In step s21, energization of the switching solenoid valve 133 is stopped, the switching solenoid valve 133 is closed, and the M burner 13 is set to a small fire.
Proceed to 22. In step s22, the detected temperature Th <
It is determined whether or not the equilibrium temperature T _H + 8 ° C., and the detection temperature Th <
If the equilibrium temperature is not T _H + 8 ° C. (No), step s21
The return, the detected temperature Th <When the equilibrium temperature _{T H + 8 ℃ (Yes)} , the process proceeds to step s23. In step s23, the power supply to the switching electromagnetic valve 133 is stopped for 20 seconds, the switching electromagnetic valve 133 is closed to turn off the M burner 13, and for the next 3 seconds, power is supplied to the switching electromagnetic valve 133 for switching. The solenoid valve 133 is opened to set the M burner 13 to a large fire, and the process proceeds to step s24. In step s24, the detected temperature Th <determines whether the equilibrium temperature T _H -5 ° C., if the detected temperature Th <not an equilibrium temperature T _H -5 ℃ (No), the process proceeds to step s25, the detected temperature Th <equilibrium If the temperature is T _H -5 ° C. (Yes), the process proceeds to step s28. Step s2
In 5, the detected temperature Th ≧ equilibrium temperature T _H + 10 a it is determined whether or not it ° C., if not the detected temperature Th ≧ equilibrium temperature _{T H + 10 ℃ (No)} , the process returns to step s23, the detected temperature Th
If a ≧ equilibrium temperature _{T H + 10 ℃ (Yes)} , the process proceeds to step s26. In step s26, the switching solenoid valve 1
33, the switching solenoid valve 133 is closed, and M
The burner 13 is turned on, and the process proceeds to step s27. In step s27, the detected temperature Th <determines whether the equilibrium temperature T _H + 8 ° C., if the detected temperature Th <not an equilibrium temperature _{T H + 8 ℃ (No)} , the process returns to step s26, the detected temperature T
If h <equilibrium temperature T _H + 8 ° C. (Yes), the process returns to step s23. In step s28, the switching solenoid valve 1
33, the switching solenoid valve 133 is opened, the M burner 13 is set to a large fire, and the process proceeds to step s29. Steps
In 29, it is determined whether the detected temperature Th ≧ equilibrium temperature T _H, if not the detected temperature Th ≧ equilibrium temperature T _H (N
o), returning to step s28, and detecting temperature Th ≧ equilibrium temperature T
If it is _H (Yes), the process returns to step s23.

Hereinafter, advantages of the gas table A of this embodiment will be described. (Oh) setting changing means 34, the required time Δt is equal to or greater than 24 seconds, after actuation of time repetitively burn alternately for 20 seconds small fire -5 seconds fire control unit 32, the detected temperature Th ≧ equilibrium temperature T _H +5 ℃, the detected temperature Th ≧ equilibrium temperature T
_{If the} time t required to reach _H + 10 ° C. exceeds 60 seconds, it is considered that a roux has been inserted in the cooking of curry or stew, and time control is performed until the detection temperature Th <equilibrium temperature T _H + 8 ° C. is satisfied. The operation of the means 32 is temporarily stopped, and the M burner 13 is forcibly burned with a small fire. When the detected temperature Th <the equilibrium temperature T _H + 8 ° C. is satisfied, the operation of the time control means 32 is reduced for 20 seconds. It is changed to the side that becomes a weak heating power that burns repeatedly and alternately with a large fire for 3 seconds. Therefore, even if the object to be cooked 11 is in a state of poor fluidity after the curry or stew roux is put therein, the object to be cooked 11 is scattered outside the cooking container 12 or scorched. The object to be cooked 11 can be moderately simmered without any dripping, and the usability is good. (I) If the detected temperature Th <equilibrium temperature T _H −5 ° C. after the operation of the time control means 32, the detected temperature Th ≧ the equilibrium temperature T _H
Until, the operation of the time control means 32 is temporarily stopped and the M burner 13 is forcibly burned with a large fire. For this reason,
After boiling, in the case of Mizutaki cooking such as for adding cooking and water to add the food 11, early can return the detected temperature Th equilibrium temperature T _H, be simmer efficiently the food 11 it can. (Iii) after the operation of the time control unit 32, when a detected temperature Th ≧ equilibrium temperature T _H + 10 ° C., since lowering the detected temperature Th by the M burner 13 to force small fire, the food 1
It is possible to prevent the occurrence of inconveniences such as scorching or excessive boiling.

The present invention includes the following embodiments in addition to the above embodiment. a. The predetermined temperature w may be determined as appropriate. b. As the method of detecting the boiling state by the boiling detecting means, another method may be used, for example, when the rate of rise of the detected temperature Th per unit time becomes equal to or less than a predetermined value, the boiling state is determined. c. The method of detecting the equilibrium state by the equilibrium temperature detection means may be another method, such as determining that the temperature rise rate becomes equal to or less than a predetermined value as the equilibrium state. d. The heating device is not limited to gas burners,
Electricity or oil may be used as fuel. e. When boiling is detected, the heating source is weaker than before boiling,
As another method of operating with a heating source that maintains a boiling state, for example, a gas amount control valve (proportional valve) is provided in a gas pipeline, and the opening degree of the valve is automatically adjusted to reduce the heating power weaker than before the boiling. May be set. f. In the above embodiment, the equilibrium temperature T _H + the predetermined temperature w (10
℃), small fire for 20 seconds-large fire for 5 seconds → small fire for 20 seconds-
The fire was changed to a large fire for 3 seconds.
It may be replaced by a large second fire. When the proportional valve is used, when the temperature reaches the equilibrium temperature T _H + the predetermined temperature w, the opening degree of the valve may be further reduced to reduce the heating power.

[Brief description of the drawings]

FIG. 1 is a perspective view of a gas table A according to one embodiment of the present invention.

FIG. 2 is a structural view of the gas table A.

FIG. 3 is a graph showing an example of elapsed time-detected temperature Th characteristics in the gas table A.

FIG. 4 is a flowchart showing the operation of the control unit 3 of the gas table A.

[Explanation of symbols]

2 Temperature sensor 3 control unit (combustion controller) 11 the food 12 cooking container 13 M burner (burner) 31 Boiling detector 32 boils maintenance control unit 33 equilibrium temperature detecting means 34 setting changing means Th detected temperature T _H equilibrium temperature w Predetermined temperature A Gas table (cooking device)

Claims (1)

(57) [Claims] 1. A heating source for heating a cooking vessel containing a food, a combustion controller for controlling a heating power of the heating source, and an electric output corresponding to a temperature of the food for the combustion controller. A combustion sensor, wherein the combustion controller comprises: a boiling detecting means for determining that the object to be cooked is in a boiling state when a rising speed of a detection temperature Th detected by the temperature sensor is reduced. , weaker than before boiling the heat source after boiling determination, and boiling maintenance control means and actuating the heating power for maintaining the boiling state, after boiling determination, the detected temperature Th becomes equilibrium, i.e., the equilibrium temperature T _H from time to time, the equilibrium temperature detecting means for detecting, after actuation of the boiling maintenance control means, when it is as to satisfy the detected temperature Th ≧ equilibrium temperature T _H + predetermined temperature w, since boiling maintained by the boiling maintenance control means The heating power of A cooking device comprising setting change means for changing the heating temperature to a side having a lower heating power than before reaching the equilibrium temperature T _H + the predetermined temperature w.