JP2008251193A - Heating cooker and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker in which occurrence probability itself of a bumping phenomenon is reduced, and lateral shifting and jumping of a cooking object such as a pan is suppressed. <P>SOLUTION: The heating cooker is provided with a heating object 102 such as a pan in which a cooking object 101 is put in, a heating means 103 to heat the heating object 102, a power supply means 104 to supply power to the heating means 103, and a bumping suppression control means 106 which determines input power width and input power fluctuation pattern so as to give a fluctuation to the input power to the power supply means 104 and carries out heating control. Thereby, since the bumping suppression control means 106 determines the input power width and input power fluctuation pattern and carries out heating control giving a fluctuation, without fixing the input power to the power supply means 104, the heating device has a function of suppressing the bumping phenomenon, and can reduce the occurrence probability itself of bumping, and can suppress lateral shifting and jumping of the cooking object such as a pan. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a heating cooker having a function of suppressing a sudden boiling phenomenon in which sudden boiling occurs suddenly during heating of an object to be cooked such as a pan, and a program thereof.

  In a heating cooker, when a cooking object in a heated object such as a pan is heated, if the ingredients of the cooking object are in a state of forming a sediment layer, Since the bubbles generated by boiling are difficult to escape at the portion where the cooked product is precipitated, the bubbles accumulate in the precipitation layer. Then, when the accumulated bubbles break through the precipitation layer, sudden boiling phenomenon such as large bubbles and splashing occurs suddenly.

Conventionally, as a heating cooker corresponding to this bumping phenomenon, when a bumping phenomenon occurs in an object to be cooked, a thing that prevents a lateral deviation or jumping of the object to be heated by a magnet is known (for example, Patent Documents). 1).
Japanese Patent Laid-Open No. 10-41061

  However, in the conventional configuration, it does not interfere with the cause of bumping and does not reduce the probability of occurrence itself. In the case where is a non-magnetic material or the bottom of the object to be heated has a smooth structure, there is a problem that lateral displacement or jumping may occur even if there is a deterring force by the magnet.

  The present invention solves the above-mentioned conventional problems, has a function of suppressing bumping phenomenon, reduces the occurrence probability of bumping itself, and suppresses lateral deviation and jumping of a cooking object such as a pan. The purpose is to provide a container and its program.

  In order to solve the above-described conventional problems, a heating cooker and a program therefor according to the present invention include a heated object such as a pan in which an object is to be cooked, a heating unit that heats the heated object, and power to the heating unit. Power supply means to be supplied, and bump boiling suppression control means for performing heating control by determining the input power width and the input power fluctuation pattern so as to give fluctuation to the input power to the power supply means.

  As a result, the bumping suppression control means performs the heating control with fluctuations by determining the throwing power width and the throwing power fluctuation pattern without fixing the throwing power to the power supply means. In addition, it is possible to reduce the occurrence probability of bumping itself and to prevent lateral shift and jumping of a cooking object such as a pan.

  The cooking device of the present invention and the program thereof can reduce the probability of occurrence of bumping itself, and can prevent lateral shift and jumping of a cooking object such as a pan.

  1st invention consists of a to-be-heated object, such as a pot which puts a to-be-cooked object, a heating means to heat a to-be-heated object, a power supply means to supply power to the heating means, and an input power to the power supply means The heating cooker is provided with a bump boiling suppression control means for performing heating control by determining the input power width and the input power fluctuation pattern so as to impart fluctuations. As a result, the bumping suppression control means performs the heating control with fluctuations by determining the throwing power width and the throwing power fluctuation pattern without fixing the throwing power to the power supply means. In addition, it is possible to reduce the occurrence probability of bumping itself and to prevent lateral shift and jumping of a cooking object such as a pan.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the heat capacity estimation means for estimating the heat capacity of the object to be heated is provided, and the bumping suppression control means performs heating control based on the output of the heat capacity estimation means. Therefore, it is possible to estimate the situation where the occurrence of the stagnation occurs and perform the bumping suppression control operation only when necessary.

  The third invention, in particular, in the second invention, further comprises a bump boiling suppression control operation power range determining means for determining a power threshold to be operated by the bump boiling suppression control means on the basis of the output of the heat capacity estimating means, and the user's operation instruction By performing the suppression control only when the power is in the necessary temperature range, it is possible to more accurately estimate the situation where bumping easily occurs and perform the bumping suppression control operation only when necessary.

  In particular, in any one of the first to third inventions, the fourth invention includes the cooking mode selection means, and executes the suppression control by the bumping suppression control means only when the cooking mode for warming is selected. Thus, the bumping suppression control operation can be performed only during cooking that requires bumping suppression.

  In particular, the fifth aspect of the present invention is the bumping suppression control for notifying that the suppression control is performed when the bumping suppression control by the bumping suppression control means is performed in any one of the first to fourth inventions. By providing the execution notification means, notifying the fact that the suppression control has been performed, it is possible to promote not only the suppression control execution but also the stirring by the user's hand that is effective in suppressing bumping.

  The sixth aspect of the invention includes, in particular, any one of the first to fifth aspects, including the bumping suppression control release selection unit, and when the user requests heating with a constant power, the power fluctuation by the bumping suppression control unit By not performing this, heating control can be performed in accordance with the user's intention.

  Since the seventh invention is a program for executing at least a part of the functions of the heating cooker according to any one of the first to sixth inventions by a computer, the electric / information At least a part of the heating cooker can be easily realized by cooperating hardware resources such as a device, a computer, and a server. In addition, by recording on a recording medium or distributing the program using a communication line, the program can be easily distributed / updated and installed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 to 4 illustrate an induction heating cooker as the heating cooker according to the first embodiment of the present invention.

  As shown in FIG. 1, the heating cooker in the present embodiment includes a heated object 102 such as a pan in which the object 101 is to be cooked, a heating unit 103 including an induction heating coil that heats the heated object 102, and heating. Power supply means (high-frequency power supply means) 104 for supplying power (high-frequency power) to the means 103, temperature detection means 105 such as a thermistor for detecting the temperature of the object to be heated 102, and input power to the power supply means 104 The bump power suppression control means 106 that controls the heating by determining the input power width and the input power fluctuation pattern so as to give fluctuations, and obtains temperature information of the temperature detection means 105 to obtain the power supply means 104 and the bump boiling suppression control means 106. And control means 107 for controlling.

  Note that this configuration can be easily realized by using an induction heating inverter for the power supply means 104, a bumping suppression control means 106, and a microcomputer for the control means 107.

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, a situation where bump boiling suppression control is required will be described with reference to FIG.

  FIG. 2 shows a state in which an object to be cooked precipitate layer 201 is formed in an object to be heated 102 such as a pan, and bubbles 202 are generated therein. For example, in the case of a water-soluble cooked object 101 composed of large-grained components such as miso, after being cooked in the heated object 102 and left for a while, it is placed in the lower center of the heated object 102. In many cases, the components of the object to be cooked 101 precipitate to form a layer. Here, this is called a to-be-cooked sediment layer 201. When heating is started in a state where the cooking object 101 is precipitated and forms a layer, the cooking object precipitation layer 201 becomes a thermally closed system. Tends to rise.

  When the cooking object 101 and the heating object 102 are heated through the heating means 103 in this state, bubbles are caused by boiling in the portion where the heating distribution in the cooking object precipitation layer 201 is highest in the initial stage before the bumping phenomenon occurs. In the middle stage before the occurrence of bumping phenomenon, the generated bubbles 202 become large without being able to come out of the to-be-cooked sediment layer 201, and become empty. This state is left for a certain period of time, and in the later stage before the occurrence of bumping phenomenon, the bubble 202 grows so large that it has the power to break the to-be-cooked sediment layer 201 and breaks the to-be-cooked sediment layer 201. When the bubble 202 pops out, it appears as a large bumping phenomenon.

  However, by performing heating control by determining the input power width and the input power fluctuation pattern so that the bump boiling suppression control means 106 applies fluctuations to the input power, the fluctuations are applied to the power input to the article to be heated 102 and static electricity is controlled. Disturb the heating conditions. As a result, the to-be-cooked sediment layer 201 is broken, and the bubbles 202 are easily removed to reduce the probability of bumping.

  The operation at this time will be described with reference to FIG.

  When the user puts the object to be cooked 101 into the object to be heated 102 and instructs the warming of the object to be cooked 101, the control means 107 operates the power supply means 104 to supply power to the heating means 103, thereby heating. A high frequency magnetic field is generated in the means 103, and the object to be heated 102 is induction-heated with the power instructed by the user (S301).

  The bumping suppression control means 106 checks the bumping suppression control execution condition, and when it is in the execution condition (for example, 5 seconds after the start of heating) (S302), determines the input power width (for example, ± 30% of the indicated power) (S303). ), A determined power pattern (for example, a pattern in which the command power ± 30% is repeated every 3 seconds and the operation with the average power as the command power is continued for 3 minutes from the start of bumping suppression control) is determined (S304). The power input from the power supply means 104 to the article to be heated 102 is determined using the input power width and the input power pattern (S305). Thereby, the state of the to-be-cooked sediment layer 201 is fluctuated, and the static heating state is disturbed so that the bubbles 202 can be easily removed, and the heating control is performed to reduce the probability of occurrence of bumping. The bump boiling suppression control is continued until the bump boiling suppression control execution end condition (for example, 3 minutes after the start) is satisfied (S306), and thereafter, constant heating is performed by the user's instruction power until the heating is ended (S301, S307). ).

  FIG. 4 shows the input power and the probability of bumping occurrence. Even when the power at the peak of the occurrence probability of bumping is instructed, heating at a power lower than the probability of occurrence at a constant applied power is also used if the power is input in a pattern with a width so as to become the indicated power on average. As a result, the probability of bumping occurrence can be kept low on average. Therefore, it can be said that the bump boiling suppression control system described above has an effect of reducing the occurrence probability not only from the effect of disturbing the static heating state but also from the viewpoint of the occurrence probability with respect to power.

  As described above, in the present embodiment, when the heating proceeds gently, bubbles 202 generated by boiling in the cooked product precipitation layer 201 are difficult to escape. In response to a sudden boiling phenomenon that accompanies a phenomenon such as a large bubble 202 or splashing when the accumulated bubble 202 breaks through the to-be-cooked sediment layer 201, the bump supply suppression control means 106 uses the power supply means 104 to The probability of occurrence of bumping can be reduced by fluctuating the power to be input to the object to be heated 102, disturbing the static heating state, and making the bubbles 202 easy to escape.

(Embodiment 2)
5 and 6 illustrate an induction heating cooker as the heating cooker according to the second embodiment of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The heating cooker in the present embodiment includes a heat capacity estimating means 501 that estimates the heat capacity of the article to be heated 102. This configuration can be easily realized by using a microcomputer for the heat capacity estimating means 501. Others are the same as in the first embodiment.

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the bottom thickness of the object to be heated 102 is thin, the heat capacity is small, so that the heat conduction from directly above the heating means 103 to the surroundings deteriorates, and the temperature rise in the vicinity immediately above the heating means 103 becomes larger than the surroundings. Since the temperature rise is large, bubbles 202 due to overheating are likely to be generated, and the probability of occurrence of bumping by the to-be-cooked sediment layer 201 is increased. Using the amount of power input and the temperature rise at that time, the heat capacity can be expressed by the following relationship.

(Heat capacity) = (input power amount) / (temperature rise)
The procedure for estimating the heat capacity in actual heating using this relationship is shown in FIG.

  In order to obtain a temperature rise regardless of the initial state, the temperature rise uses a temperature rise from a temperature that rises by a predetermined value (for example, rises by 2 degrees) from the initial temperature. First, after detecting the temperature of the initial value (S601), while detecting the temperature (S602), the process waits until the detection result becomes the initial temperature + predetermined value (for example, 2 degrees) (S603). Next, in order to estimate the (heat capacity), the heat capacity estimating means 501 waits for a predetermined time (for example, 5 seconds) to elapse while performing the input power integration (S604) (S605), and detects the temperature (S606). Obtain the necessary (input power amount) and (temperature rise). The heat capacity estimating means 501 calculates the estimated heat capacity based on the above equation from the observation value obtained here (S607), and determines that the bumping suppression control is performed when the heat capacity is small (S608).

  By using the heat capacity estimation means 501 that estimates the heat capacity of the object to be heated 102 such as a pan by the operation described above, the bumping suppression operation can be performed only when necessary.

(Embodiment 3)
FIG. 7 illustrates an induction heating cooker as the heating cooker according to Embodiment 3 of the present invention. The same elements as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  The cooking device in the present embodiment includes a bump boiling suppression control operation power range determination unit 701 that determines a power threshold that the bump boiling suppression control unit 106 operates based on the output of the heat capacity estimation unit 501, and the operation instruction power of the user Suppression control is performed only when is in the required temperature range.

  Moreover, the cooking mode selection means 702 is provided, and the suppression control by the bump boiling suppression control means 106 is executed only when the cooking mode for warming is selected.

  Also, when bumping suppression control by the bumping suppression control means 106 is performed, the bumping suppression control execution notifying means 703 for notifying that the suppression control has been performed is provided, and the fact that the suppression control has been performed is notified. Thus, not only the suppression control execution but also the user's hand stirring which is effective in suppressing bumping can be promoted.

  Further, a bump boiling suppression control release selection means 704 is provided, and when the user requests heating with a constant power, the heating control is performed according to the user's intention so as not to perform power fluctuation by the bump boiling suppression control means 106. To be able to do.

  It should be noted that a bump boiling suppression control operation power range determination means 701, cooking mode selection means 702 is a microcomputer, cooking mode selection means 702, bump boiling suppression control release selection means 704 is a switch and a microcomputer, bump boiling suppression control execution notification means 703 Can easily realize this configuration by using an LED, a buzzer, sound generation means, and the like. Others are the same as the first and second embodiments.

  About the cooking-by-heating machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the heat capacity of the object to be heated 102 is large, bumping does not occur even if the same object to be cooked 101 is used. Further, the power with a high probability of bumping varies depending on the heat capacity. The bumping suppression control operation power range determination unit 701 stores power having a high probability of bumping occurrence for each heat capacity, and determines the power range in which the bumping suppression control is operated according to the output of the heat capacity estimation unit 501, thereby causing bumping. The easy situation can be estimated more accurately, and the bumping suppression control operation can be performed only when necessary.

  Further, when the user starts cooking, when cooking fried food, fried food, etc., the cooking mode selection means 702 is used to warm up so that the sudden boiling suppression control is not performed unintentionally. By allowing the user to select the cooking mode, bump boiling suppression control using the bump boiling suppression control means 106 can be performed only when necessary.

  Further, the bumping suppression control execution notifying unit 703 can display or notify that the bumping suppression control unit 106 has performed the suppression control, or both, and can prompt the user to stir effectively for bump bump suppression. Further, the heat capacity estimation means 501 performs the bumping suppression control selectively according to the type of the object to be heated 102, and then performs the suppression control execution notification so that the object to be heated 102 in which bumping easily occurs is given to the user. It becomes possible to inform.

  In addition, when the user does not want to adjust the heating power automatically and requests constant power input, the bumping suppression control release selection unit 704 can be selected not to operate the suppression control using the bumping suppression control unit 106. And Thereby, although automatic heating control is normally performed so that bumping does not occur, it can be intentionally prohibited according to a user's request.

  As described above, in the present embodiment, bumping is likely to occur by performing the suppression control only when the operation instruction power of the user is within the necessary temperature range by the bumping suppression control operation power range determination unit 701. The situation can be estimated more accurately and the bumping suppression control operation can be performed only when necessary. Further, by performing the suppression control by the bumping suppression control means 106 only when the cooking mode selection unit 702 selects the cooking mode for warming up, the bumping suppression control operation is performed only during cooking that requires bumping suppression. Can do. Further, by notifying the fact that the suppression control has been performed by the bump boiling suppression control execution notifying means 703, not only the suppression control execution but also the user's hand stirring effective for bump bump suppression can be promoted. Further, when the user requests heating with a constant power by the bumping suppression control release selection means 704, heating control is performed in accordance with the intention of the user by preventing the bumping suppression control means 106 from performing power fluctuation. It can be performed.

  Note that the means described in each of the first to third embodiments include hardware resources such as a CPU (or microcomputer), a RAM, a ROM, a storage / recording device, an electrical / information device including an I / O, a computer, a server, and the like. You may implement in the form of the program made to cooperate. In the case of a program, the program can be distributed / updated and installed easily by recording it on a recording medium such as magnetic media or optical media, or by distributing it through a communication line such as the Internet.

  Moreover, in each Embodiment 1-3, although the induction heating cooker was illustrated as a heating cooker, even if it is another heating cooker using not only induction heating but heat sources, such as a sheathed heater and gas combustion, what? Can be used without problems. In the case of gas combustion, it can be realized by varying the size of the flame generated.

  As described above, the cooking device according to the present invention and the program thereof have a function of suppressing bumping phenomenon, reduce the probability of bumping itself, and can suppress lateral deviation and jumping of a cooking object such as a pan. Therefore, the present invention can be applied not only to induction heating cookers but also to all heating cookers regardless of the heat source.

(A) The block diagram which shows the structure of the heating cooker in Embodiment 1 of this invention (b) The top view which shows the heating means and temperature detection means of the heating cooker Sectional drawing which shows the state when there is a possibility of bumping of the heating cooker The figure which shows the operation | movement sequence of the heating cooker The figure which shows the relationship between the input power of the heating cooker and the occurrence probability of bumping The block diagram which shows the structure of the heating cooker in Embodiment 2 of this invention. The figure which shows the operation | movement sequence of the heating cooker The block diagram which shows the structure of the heating cooker in Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 To-be-cooked object 102 To-be-heated object 103 Heating means 104 Power supply means 105 Temperature detection means 106 Bumping suppression control means 107 Control means 201 To-be-cooked sediment layer 202 Bubble 501 Heat capacity estimation means 701 Bumping suppression control operation power range determination means 702 Cooking Mode selection means 703 Bumping suppression control execution notification means 704 Bumping suppression control release selection means

Claims (7)

To-be-heated object such as a pan for storing the object to be cooked, heating means for heating the object to be heated, power supply means for the heating means, and input power width so as to give fluctuation to the input power to the power supply means And a bump boiling suppression control means for determining heating power variation pattern and performing heating control. The cooking device according to claim 1, further comprising heat capacity estimating means for estimating the heat capacity of the object to be heated, wherein the bumping suppression control means performs heating control based on the output of the heat capacity estimating means. There is a bump power suppression control operation power range determination means that determines the power threshold that the bump boiling suppression control means operates based on the output of the heat capacity estimation means, and the suppression control is performed only when the user's operation command power is within the required temperature range. The heating cooker of Claim 2 to perform. The cooking device according to any one of claims 1 to 3, further comprising a cooking mode selection unit, wherein the suppression control by the bump boiling suppression control unit is executed only when a cooking mode for warming is selected. The cooking according to any one of claims 1 to 4, further comprising a bump boiling suppression control execution notification means for notifying that the suppression control has been performed when the bump boiling suppression control is performed by the bump boiling suppression control means. vessel. The cooking according to any one of claims 1 to 5, further comprising a bump boiling suppression control release selection means, wherein when the user requests heating at a constant power, the power fluctuation by the bump boiling suppression control means is not performed. vessel. The program for performing at least one part of the function in the heating cooker of any one of Claims 1-6 by a computer.

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