KR960013114B1 - Cooking device - Google Patents

Abstract

The cooking device is designed to prevent malfunction even in case of a pressure cooker. The cooking device includes : a heating source for heating a cooking container; a temperature sensor for detecting temperature of the cooking container; a balanced temperature detecting means for determining the balanced temperature; and an auto operation control means for controlling the operation of the heating source.

Description

Cooking device

1 is a perspective view showing a gas table according to the present invention.

2 is a structural explanatory diagram of a gas table according to the present invention.

3 is a flowchart for explaining the operation of the gas table according to the present invention.

4 is a graph showing the relationship between elapsed time and detection temperature when the cooking vessel is a pressure cooker.

5 is a graph showing the relationship between elapsed time and detection temperature when the cooking vessel is a general pot.

* Explanation of symbols for main parts of the drawings

1: Gas table (cooking device) 2,3: Glow furnace burner (heating source)

2a, 3a: temperature sensor 30: control circuit (heating controller)

202: cooking material 201: cooking container

s: Predetermined time T: Detected temperature

T _H : Equilibrium temperature T _K : Cutoff temperature

t ₁ : the first predetermined temperature

The present invention relates to a cooking apparatus for putting a cooking object in a cooking vessel and cooking.

Conventionally, a gas burner for heating a cooking vessel containing a cooked product, a temperature sensor for detecting the temperature of the bottom of the cooker, and a heating controller for controlling combustion of the gas burner are provided, and the temperature rise of the cooked food is made small. When the determination in equilibrium by calculating the equilibrium temperature (T _H) also and at the same time, the equilibrium temperature (T _H) and the blocking temperature (T _K) for calculating and out of the equilibrium state is blocked, it detected temperature (T) based on the When a temperature T _K (for example, equilibrium temperature T _H + 20 ° C.) is reached, a cooking apparatus having a heating controller has an automatic suppression means for suppressing the gas burner and the like.

In the conventional cooking apparatus, when the cooking vessel is a pressure cooker, the relationship between the elapsed time and the detection temperature (T) is often shown in two stages as shown by the solid curve in FIG. In this case, since the cutoff temperature T _K is determined based on the equilibrium temperature T _H at the first equilibrium state, the detection temperature T reaches the determined cutoff temperature T _K before the second equilibrium state. In spite of the fact that the cooked material in the pressure cooker is not burning, it has been found that a problem occurs that the gas suppressor is extinguished due to malfunction of the automatic suppression means.

An object of the present invention is to provide a cooking apparatus comprising a heating controller having an automatic suppressing means for suppressing the operation of a heating source when a detection temperature detected by a temperature sensor arranged to contact the cooking vessel reaches a cutoff temperature. Even if the vessel is a pressure cooker, the automatic suppression means is not to malfunction.

MEANS TO SOLVE THE PROBLEM This invention employ | adopted the following structures in order to solve the said subject.

One). A heating source for heating the cooking vessel containing the cooked object, a temperature sensor arranged to contact the cooking vessel, a heating controller for controlling the heating power of the heating source based on the detected temperature; In the cooking apparatus provided with the heating apparatus, the heating controller determines that the state of equilibrium is increased when the detection temperature T rises slightly, and the equilibrium temperature T _H is determined from the trend of the detection temperature T during equilibrium. When the temperature detection means and the equilibrium state are determined, the cutoff temperature T _K is determined on the basis of the equilibrium temperature T _H , and when the detection temperature T reaches the cutoff temperature T _K , the heating source And an automatic suppressing means for suppressing the operation of the sensor, and after the equilibrium temperature detecting means determines the initial equilibrium state, the detection temperature T becomes the equilibrium temperature T _H + the first firing temperature t within a predetermined time s. ₁ ), the determined cutoff temperature (T _K ) Change to the road.

2). With the configuration of 1) above, the cutoff temperature T _K is changed to a higher temperature only for a predetermined time, and after a predetermined time elapses, the cutoff temperature T _K is returned to the originally determined cutoff temperature T _K.

According to this invention by the above-mentioned structure, it functions as follows.

According to the structure of Claim 1, a heating controller detects the detection temperature T by the temperature sensor arrange | positioned so that it may contact with a cooking container.

When the cooking of the cooked food proceeds by heating of the heating source and the increase of the detection temperature T becomes small, the equilibrium temperature detecting means of the heating controller determines that the cooked food in the cooking vessel is in an equilibrium state, The equilibrium temperature T _H is determined from the trend of the detection temperature T, and the automatic suppressing means determines the cutoff temperature T _K based on the equilibrium temperature T _H.

In the case where the cooking vessel is a pressure cooker, since the detection temperature T starts to rise after the equilibrium state is maintained for a short time, the detection temperature (s) within the predetermined time (s) after the equilibrium temperature detection means determines the initial equilibrium state. When T) reaches the equilibrium temperature (T _H ) + the first firing temperature (t ₁ ), the cooking vessel is judged as a pressure cooker, and the determined cutoff temperature (T _K ) is changed to a higher temperature, resulting in a second equilibrium state. The detection temperature T has reached the cutoff temperature T _K before to prevent the automatic suppression means from malfunctioning.

When the cooking vessel is a general container, the two-stage equilibrium state does not usually appear, and once it reaches the equilibrium state, since it lasts for a long time, the detection temperature T is equal to the equilibrium temperature T _H + first firing within a predetermined time s. The temperature t ₁ is rarely reached and is maintained at the determined cutoff temperature T _K.

According to the structure of Claim 2, even if a cooking container is a normal container, after a container shakes during cooking and the equilibrium temperature detection means determines the initial equilibrium state, the detection temperature T will be in equilibrium temperature T _H within baking time s. In some cases, the first predetermined temperature t ₁ may be reached. In this case, the determined cutoff temperature T _K is changed to a higher temperature, but after a predetermined time elapses, the cutoff temperature T _K is returned to the originally determined cutoff temperature T _K.

Further, the predetermined time is set slightly longer than the time until the detection temperature T reaches the equilibrium temperature T _H + the first predetermined temperature t ₁ until the cooking using the pressure cooker is completed.

According to the present invention as described above has the following advantages.

According to the configuration and operation according to claim 1, the detection temperature T reaches the equilibrium temperature T _H + the first predetermined temperature t ₁ within a predetermined time s after the equilibrium detection means determines the initial equilibrium state. In this case, since the cutoff temperature T _K is changed to a higher temperature, the cooking apparatus prevents malfunction of the automatic suppression means even when the cooking vessel is a pressure cooker, and the cooking by the pressure cooker is stopped due to premature extinguishing. It is very convenient to use because it can eliminate the problem.

According to the structure and operation of Claim 2, even if a cooking container is a normal container, when the cooking container is shaken during cooking and is judged to be using the pressure cooker, and the determined cutoff temperature T _K has been changed to a higher temperature, After a predetermined time has elapsed, since it is returned to the originally determined cutoff temperature T _K , by setting the predetermined time to the minimum time required for cooking using the pressure cooker, the cooking by the pressure cooker can be performed without interruption, and the cooking vessel Even if the general container, even if the cooking material does not cause the problem that the automatic suppression means does not work.

A first embodiment of the present invention will be described with reference to FIGS.

In the gas table 1 shown in FIG. 1, 2 · 3 is a goro burner having a different thermal power, 4A a grill door for opening and closing a heating chamber of the grill, and 5 · 6 · 7 are each goro burner 2, 3) and an ignition / fire extinguishing button for operating combustion in the grill burner 4, respectively, and an operation panel for setting an operating state of the gourd burner 3, respectively.

2a and 3a are temperature sensors incorporating a thermistor for detecting the temperature of the cooking vessel 201 such as a pressure cooker heated by each of the furnace burners 2 and 3, and the temperature sensors 2a and 3a are not shown. When elasticity is imparted toward the upper side of the gas table 1 by the spring, and when the cooking vessel 201 is placed in the furnace, the bottom of the cooking vessel 201 presses down the temperature sensors 2a and 3a and the temperature is reduced. The temperature detection unit on the upper ends of the sensors 2a and 3a presses the cooking vessel 201. In addition, a cooking object 202 (for example, water and brown rice) is placed in the cooking vessel 201.

As shown in FIG. 2, the gas pipe 11 which supplies gas consists of supply pipes 12, 13, and 14 which corresponded to each burner 2, 3, and 4, and supplies each of the supply pipes 12-14. The main valves 12a, 13a and 14a, which are opened and closed respectively by the operations of the respective ignition and fire extinguishing buttons 5 to 7, are opened by the operations of the respective ignition and fire extinguishing buttons 5 to 7, respectively. The solenoid safety valves 12b, 13b, and 14b, which maintain the valve open state or close the valves by communication control by the control circuit 30, are provided respectively, and the supply pipes 13 to the goro burner 3 are provided with two. Branched and joined, one side is provided with an solenoid valve 13c which is controlled to open and close for temperature control of the gourd burner 3.

In addition, the feed pipes 12, 13, and 14 to the goro burners 2 and 3 and the grill burner 4 are provided with a thermal power control lever provided in proximity to the ignition and fire extinguishing buttons 5, 6 and 7 on the front of the gas table 1. A gas amount regulating valve (not shown) for adjusting the gas supply amount is provided by operation of 5a, 6a, and 7a, respectively.

In addition, each burner 2 to 4 includes ignition electrodes 15, 16, and 17 for performing spark discharge for ignition, and thermocouples 15a, 16a, and 17a for generating electromotive force by sensing combustion heat. .

On the operation panel 20, the cooker 21 for cooking the fried cooked food, the cooked food, and the heating and roasting after boiling at the time of boiling the water by the temperature control control or the time control with respect to the go-ro burner 3, respectively. 23), and a cancel key 24 and temperature setting keys 25 and 26 for canceling these are provided, and LEDs for indicating the selected state of each cooking are provided.

In the gas table 1 having the above configuration, each burner 2 to 4 is controlled by the control circuit 30 provided in the gas table 1.

The control circuit 30 is composed mainly of a microcomputer and is based on the ignition control of each burner 2 to 4 and the thermocouples 15a to 17a according to the operation of the ignition / fire extinguishing buttons 5 to 7. Ignition and misfire detection control are performed.

In addition, about the go-ro burner 3, temperature control control according to operation of the cooking keys 21-23, and heat retention control after boiling detection are performed.

In addition, when the increase in the detection temperature T by the temperature sensors 2a and 3a becomes small in the control circuit 30, the equilibrium temperature which determines that the to-be-cooked object 202 in the cooking container 201 is in an equilibrium state. The fire extinguishing operation of the burner is performed based on the cutoff temperature T _K in order to prevent ignition of the detecting means and the cooking oil during the cooking or stir cooking during the cooking of the cooker burners 2 and 3. Automatic suppression means are installed.

The cut-off temperature (T _K ) is set to a temperature for preventing burning during cooking and a temperature for preventing ignition during cooking (removing a state that may cause ignition). To help.

Next, the operation of the control circuit 30 in the stewed cooking will be described with reference to FIGS.

In step s1, it is determined whether or not the detection temperature T has reached 90 ° C, and when the detection temperature T has reached 90 ° C {YES; The elapsed time (81,91)} proceeds to step s2.

In step s2, the detected temperature T detected by the temperature sensors 2a and 3a is sampled every 15 seconds, stored in order in the memory, and the measurement of measurement temperature to be the temperature data is started, and the process proceeds to step s3. do.

In step s3, it is determined whether condition 1 is satisfied, and if it satisfies (YES), the process proceeds to step s4.

Condition 1: -2 ° C≤T _n -T _n- 2≤ + 2 ° C is satisfied three times in succession.

Where T _n : last detection temperature (T)

T _n-2 : Two previous data of T _n

In step s4, it is determined whether condition 2 is satisfied, and if it satisfies (YES), the process proceeds to step s5, and if it is not satisfied (NO), the process returns to step s3.

Condition 2: -2 ° C≤T _H -T _S ≤ + 2 ° C

However, T _H : T _n when the condition 1 is satisfied last (third time)

T _S : T _n-2 when condition 1 is satisfied for the first time

In step s5, T _n at the end (third) when condition 1 is satisfied is the equilibrium temperature T _H (elapsed time (82,92)).

In this embodiment, the above conditions 1 and 2 correspond to the equilibrium temperature detecting means of the present invention.

In step s6, the cutoff temperature T _K = equilibrium temperature T _H + 20 ° C. is reached and the flow proceeds to step s7 (elapsed times 82 and 92).

In step s7, the 5-minute timer is started and the process proceeds to step s8.

In step s8, it is determined whether or not the detection temperature T≥equilibrium temperature T _H +10 deg. C (first predetermined temperature t ₁ ) is satisfied, and when it is satisfied (YES; elapsed time 83), The process proceeds to (s9), and when not satisfied (NO), the process proceeds to step s15.

In step s9, the cutoff temperature is changed to cutoff temperature T _K = equilibrium temperature T _H + 30 ° C., and the flow proceeds to step s10 (elapsed time 83).

In step s10, the 40 minute timer is started, and the flow proceeds to step s11.

In step s11, it is determined whether or not the detection temperature T ≥ the breaking temperature T _K {T _K = T _H + 30 ° C} is established, and when it is established (YES; elapsed time in the double-dot chain line) 84, it progresses to step s17, and when it does not hold, it progresses to step s12.

In step s12, it is determined whether the 40-minute timer has timed up, and if it has timed up (YES; elapsed time 86), the process proceeds to step s13. Go back.

In step s13, the cutoff temperature is changed to cutoff temperature T _K = equilibrium temperature T _H + 20 ° C, and the flow advances to step s14.

In step s14, it is determined whether the detection temperature T ≥ breaking temperature T _K {T _K = T _H + 20 ° C} is satisfied, and if it is satisfied (YES), the process proceeds to step s17. do.

In step s15, it is determined whether or not the 5-minute timer has timed up, and if it has timed up (YES), the process proceeds to step s16, and if it does not time up (NO), the process returns to step s8.

In step s16, it is determined whether or not the detection temperature T ≥ the breaking temperature T _K {T _K = T _H + 20 ° C} is satisfied, and when it is established (YES; elapsed time 93), Proceed to (s17).

Next, the advantages of the gas table 1 in the present embodiment will be described.

end). As shown in FIG. 4, after the control circuit 30 determines the equilibrium state (elapsed time 82), the detection temperature T is equal to the equilibrium temperature T _H within 5 minutes (within a predetermined time s). ) {Eg, 100 ° C.} + 10 ° C. {first predetermined temperature t ₁ ), that is, reaching 110 ° C. (elapsed time 83), it is determined that the cooking vessel is a pressure cooker and the cutoff temperature (T _K ) 100 ° C {equilibrium temperature (T _H )} + 20 ° C {second predetermined temperature (t ₂ )}, i.e. 120 ° C to 100 ° C {equilibrium temperature (T _H )} + 30 ° C {third predetermined temperature (t ₃₎ )}, That is, the configuration is changed to 130 ° C.

That is, when the cooking vessel is a pressure cooker, since the cutoff temperature T _K is set high at 130 ° C. for 40 minutes longer than the elapsed time 85 at which the cooking of the pressure cooker is finished from the elapsed time 83. In the case of using a pressure cooker, the detection temperature (T) reaches the cutoff temperature (T _K ) (120 ° C) before the change before the second equilibrium state peculiar to the pressure cooker can prevent the automatic suppression means from malfunctioning. When cooking using a pressure cooker, such as when cooking with rice, the cooking does not cause a problem that is stopped.

In addition, when there is insufficient water and water is lost during cooking, the detection temperature T rises as indicated by the double-dotted line (see FIG. 4), and the detection temperature T is 130 ° C. (100 ° C. (equilibrium temperature T). _H )) + 30 ° C}, since the fire extinguishing takes place at the elapsed time 84, it is possible to prevent burning.

When 40 minutes have elapsed from the elapsed time 83, the cutoff temperature T _K is set at 130 ° C (equilibrium temperature 100 ° C + third predetermined temperature 30 ° C) to 120 ° C (equilibrium temperature 100 ° C + second predetermined temperature 20 ° C). }, Even if it is a general cooking vessel, even if it is a general cooking vessel, even if the pot shakes during cooking, reaching 110 ℃ within 5 minutes, even if the cut-off temperature (T _K ) is changed to 130 ℃ early, appropriate shut off by reverting to a temperature _{(T K) (= 120 ℃} ), thereby preventing the problem of late after digestion ride.

I). As shown in FIG. 5, after the control circuit 30 determines the equilibrium state (elapsed time 92), the detection temperature T is 100 deg. C (equilibrium temperature) within 5 minutes (in the predetermined time s). (T _H )} + 10 ° C. {first predetermined temperature (t ₁ )}, i.e., if it does not reach 110 ° C., it is determined that cooking vessel 201 is not a pressure cooker, and cutoff temperature T _K is 100 ° C. (equilibrium). The temperature T _H } + 20 ° C. (the second predetermined temperature t ₂ ), i.e., 120 ° C., does not change.

That is, when the cooking vessel is a normal pot, the equilibrium state is determined (elapsed time 92), and then the cutoff temperature T _K is 120 ° C (equilibrium temperature T _H + second predetermined temperature t ₂ ). } To be constant.

If moisture is lost during cooking, the detection temperature T rises as indicated by the double-dot chain line (see FIG. 5), and extinguishing takes place at an elapsed time 93 at which the detection temperature T reaches 120 ° C. Because it loses, burning can be prevented.

All). In the case of a pressure cooker, an equilibrium state may occur twice. In this case, the first equilibrium state lasts only for a short time, and the detection temperature rises immediately, so that the gas table 1 determines whether the cooking vessel is a general pot or a pressure cooker. It is very convenient to use because there is no need to make manual setting according to the type of pot because it is configured to change the cutoff temperature (T _K ) by judging and to prevent burning in the case of a pressure cooker. .

The present invention includes the following embodiments in addition to the above embodiments.

a. In the above embodiment, the predetermined time (s) is set to 5 minutes, but in the case of a general pot, it may be appropriately determined in the range of 1 minute to 10 minutes, which is a time when a cooking product is unlikely to burn. In the above embodiment, the first predetermined temperature t ₁ , the second predetermined temperature t ₂ , and the third predetermined temperature t ₃ are set to 10 ° C., 20 ° C., and 30 ° C., but t ₃ t ₂ t ₁ In addition, what is necessary is just to set it appropriately as a value which can detect a burn to be cooked. Moreover, what is necessary is just to set the time of a 40-minute timer suitably as long as it is longer than the time to complete cooking by a pressure cooker normally.

In addition, but determined by adding the blocking temperature (T _K) is given to the equilibrium temperature (T _H) the temperature (t _2, t ₃₎ In the above embodiment, the equilibrium temperature, for a predetermined value {for example, to (T _H), K ₁ , K ₂ (where K ₁ K ₂ )} may be used to determine the value of the cutoff temperature T _K.

b. The preparation is in the liquid state such as water, soy sauce, liquor, miso, curry, and soup.

c. The automatic suppression means may switch the burner's fire power to a weak fire.

d. The equilibrium temperature detecting means considers the equilibrium state when the temperature difference per unit time is smaller than the reference value, in addition to the method shown in the present embodiment, and sets the detection temperature T at this time as the equilibrium temperature T _H. The same alternative method may be used.

Claims (2)

A heating source for heating a cooking vessel containing a cooking object; A temperature sensor disposed in contact with the cooking vessel and detecting a temperature of the cooking vessel; In the cooking apparatus having a heating controller for controlling the heating power of the heating source based on the detection temperature, the heating controller determines that the rising state of the detection temperature (T) is an equilibrium state and the detection temperature during the equilibrium state ( Equilibrium temperature detecting means for determining an equilibrium temperature T _H from the trend of T); When determining the equilibrium state, the cutoff temperature T _K is determined based on the equilibrium temperature T _H , and when the detection temperature T reaches the cutoff temperature T _K , the operation of the heating source is suppressed. If the detection temperature T reaches the equilibrium temperature (T _H ) + the first predetermined temperature (t ₁ ) within a predetermined time (s) after the equilibrium temperature detecting means determines the initial equilibrium state. , Cooking apparatus characterized in that for changing the cut-off temperature (T _K ) to a higher temperature. 2. The cooking apparatus according to claim 1, wherein the cutoff temperature (T _K ) is changed to a higher temperature only for a predetermined period of time, and after a predetermined time elapses, the cutoff temperature (T _K ) is returned to the originally determined cutoff temperature (T _K ).