JP2014066367A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker capable of easily determining whether to perform re-heating.SOLUTION: A heating cooker includes: a microwave generation unit 10 that generates microwaves for heating an objected to be heated in a heating chamber; microwave control means 100a that controls the microwave generation unit 10; clocking means 100b that clocks a lapse time Tk from the time when heating is completed with microwaves from the microwave generation unit 10; and re-heating determination means 100d that determines whether to perform re-heating with microwaves on the basis of the lapse time Tk clocked by the clocking means 100b.

Description

  The present invention relates to a cooking device.

  Conventionally, as a cooking device, there is a commercial microwave oven that performs heating using microwaves. Such a commercial microwave oven is used for cooking to heat food such as lunch boxes at convenience stores.

  By the way, the clerk of the above convenience store has various jobs such as backyard product management, register operation, product display, cleaning, etc. In many cases, after work is over, they are left to cool without being handed over to customers.

  It is difficult to determine whether or how much to reheat when the food has cooled because the food has been forgotten to be removed after heating.

  Regarding such reheating after forgetting to take out the food, related prior art documents cannot be found, and information on prior art documents is not described.

  Then, the subject of this invention is providing the heating cooker which can determine easily whether it should reheat.

In order to solve the above problems, the heating cooker of the present invention is:
A microwave generating section for generating a microwave for heating an object to be heated in the heating chamber;
Microwave control means for controlling the microwave generator;
Time measuring means for measuring the elapsed time from the time when the heating by the microwave from the microwave generating unit is completed,
Reheating determination means for determining whether or not to reheat by the microwave based on the elapsed time measured by the timing means is provided.

  According to the said structure, the elapsed time from the time of the last heating by the microwave from a microwave generation part being completed is time-measured by a time measuring means. Then, based on the elapsed time measured by the time measuring means, the reheating determination means determines whether or not to reheat by the microwave. For example, when the elapsed time is about several tens of seconds and the temperature drop of the object to be heated is small, it is determined that reheating is not necessary. Thus, it becomes possible to easily determine whether or not to reheat.

Moreover, in the heating cooker of one embodiment,
Based on the elapsed time measured by the time measuring means, a heating time calculating means for calculating a reheating time when reheating with the microwave having the same output value as the previous heating time,
If it is determined that the reheating determination means should be reheated, it should be reheated with the microwave having the same output value as the previous heating and with the reheating time calculated by the heating time calculating means. Informing means for informing this is provided.

  According to the embodiment, based on the elapsed time measured by the time measuring means, the heating time calculating means calculates the reheating time when reheating with the microwave having the same output value as the previous heating. And when the said reheating determination means determines that it should reheat, it should reheat with the reheat time calculated by the microwave of the same output value as the time of the said last heating, and the heating time calculation means This is notified by the notification means. Here, the notification means notifies the user by a display by the display unit or a sound by the sound output unit. In this manner, it is possible to easily determine whether or not to reheat, and to perform heating with an optimal heating time when reheating is to be performed.

Moreover, in the heating cooker of one embodiment,
The notification means is
When the elapsed time counted by the timing means is less than or equal to a preset determination time, it is not notified that reheating should be performed.

  According to the above embodiment, when the elapsed time measured by the time measuring means is equal to or less than the preset determination time, it is not notified that the reheating should be performed. By setting the determination time so as not to heat, unnecessary re-heating notification is not required, and convenience is improved.

Moreover, in the heating cooker of one embodiment,
The heating time calculation means includes
The reheating time is calculated based on at least one of the microwave output value at the time of the previous heating or the heating time at the time of the previous heating and the elapsed time measured by the time measuring means.

  According to the above embodiment, the heating time calculating means is re-based based on at least one of the microwave output value at the previous heating or the heating time at the previous heating and the elapsed time measured by the time measuring means. By calculating the heating time, in addition to the elapsed time, by considering at least one of the microwave output value at the previous heating or the heating time at the previous heating, a more optimal reheating time can get. In particular, if the microwave output value and heating time during the previous heating are used, the total amount of heat given to the object to be heated during the previous heating can be obtained, and the amount of heat released during the elapsed time can be estimated through experiments and simulations. In addition, since the reheating time is calculated by the heating time calculating means so as to replenish the heat radiation amount by reheating, a more optimal reheating time can be obtained.

Moreover, in the heating cooker of one embodiment,
A temperature sensor for detecting the temperature of the object to be heated in the heating chamber;
Based on the temperature at the end of heating of the heated object detected by the temperature sensor at the time when the previous heating is completed and the current temperature of the heated object detected by the temperature sensor, A temperature change amount calculating means for calculating a temperature change amount;
The heating time calculation means includes
The reheating time is calculated based on the temperature change amount calculated by the temperature change amount calculating means and the elapsed time timed by the time measuring means.

  According to the above embodiment, the object to be heated is based on the temperature at the end of heating of the object to be heated detected by the temperature sensor when the previous heating is completed and the current temperature of the object to be heated detected by the temperature sensor. The temperature change amount is calculated by the temperature change amount calculation means. Then, the reheating time is calculated by the heating time calculation means based on the calculated temperature change amount and the elapsed time measured by the time measuring means. Thus, based on the temperature change amount and the elapsed time of the object to be heated, the heat time calculation means is configured so that the heat release amount during the elapsed time is estimated by experiments and simulations, and the heat release amount is replenished by reheating. Since the reheating time is calculated by the above, a more optimal reheating time can be obtained.

Moreover, in the heating cooker of one embodiment,
A temperature sensor for detecting the temperature of the object to be heated in the heating chamber;
The temperature at the end of heating of the heated object detected by the temperature sensor when the previous heating was completed, the current temperature of the heated object detected by the temperature sensor, and timed by the time measuring means A temperature change rate calculating means for calculating a temperature change rate of the object to be heated based on the elapsed time;
A heated object feature extracting means for extracting features of the heated object based on the temperature change rate calculated by the temperature change rate calculating means,
The heating time calculation means includes
The reheating time is calculated based on the characteristics of the heated object extracted by the heated object feature extracting means.

  According to the above embodiment, the heating end temperature of the object to be heated detected by the temperature sensor at the time when the previous heating is completed, the current temperature of the object to be heated detected by the temperature sensor, and the time measuring means. Based on the elapsed time, the temperature change rate of the object to be heated is calculated by the temperature change rate calculating means. Then, based on the temperature change rate calculated by the temperature change rate calculating means, the feature of the heated object is extracted by the heated object feature extracting means. Since the reheating time is calculated by the heating time calculating means based on the feature of the heated object extracted by the heated object feature extracting means, a more optimal reheating time can be obtained.

  As is clear from the above, according to the present invention, it is possible to realize a cooking device that can easily determine whether or not to reheat.

FIG. 1 is a front view of a heating cooker according to a first embodiment of the present invention. FIG. 2 is a block diagram showing a schematic configuration of the control device for the cooking device. FIG. 3 is a block diagram showing a schematic configuration of the control device for the heating cooker according to the second embodiment of the present invention. FIG. 4 is a block diagram showing a schematic configuration of a control device for a heating cooker according to a third embodiment of the present invention.

  Hereinafter, the cooking device of the present invention will be described in detail with reference to the illustrated embodiments.

[First Embodiment]
FIG. 1: has shown the front view of the heating cooker of 1st Embodiment of this invention. This heating cooker 1 has an operation unit 3 installed at the upper part of the front surface of the rectangular parallelepiped cabinet 2 and is rotated around the left end side below the operation unit 3 in the front of the cabinet 2. A door 4 for opening and closing a heating chamber (not shown) is provided and is schematically configured. A handle 5 is provided on the right side of the door 4, and a window 6 made of heat-resistant glass is fitted into the door 4. Further, a liquid crystal display unit 7 is provided on the left side of the operation unit 3 in the figure, and the content corresponding to the operation is displayed on the liquid crystal display unit 7 by the control device 100 by operating the keys of the operation unit 3. .

  Here, the heating cooker 1 heats an object to be heated by microwaves generated by a magnetron 10 (shown in FIG. 2) as an example of a microwave generation unit. Note that the heating structure of the object to be heated by the microwave is the same as that of a conventional microwave heating cooker. For example, the microwave generated by the magnetron 10 disposed in the lower part of the heating chamber is guided. It is guided to the lower center of the heating chamber by a wave tube and radiates upward in the heating chamber while being reflected by a rotating antenna driven by a rotating antenna motor 12 (shown in FIG. 2).

  FIG. 2 is a block diagram showing a schematic configuration of the control device 100 of the heating cooker 1.

  As shown in FIG. 2, the control device 100 includes a microcomputer, an input / output circuit, and the like, and includes an operation unit 3, a liquid crystal display unit 7, a magnetron 10, a rotating antenna motor 12, and a temperature sensor 20. It is connected. The control device 100 controls the liquid crystal display unit 7, the magnetron 10, and the rotating antenna motor 12 based on signals from the operation unit 3 and the temperature sensor 20.

  The control device 100 includes a microwave control means 100a for controlling the magnetron 10, a time measuring means 100b for measuring the heating time Tk, a heating time calculating means 100c for calculating the reheating time Ts for reheating, Reheating determination means 100d for determining whether to heat or notifying means 100e for notifying that reheating should be performed.

  According to the heating cooker having the above-described configuration, the elapsed time Tk from the time when the previous heating by the microwave from the magnetron 10 is completed is measured by the time measuring means 100b. Based on the elapsed time Tk timed by the time measuring means 100b, the heating time calculating means 100c calculates the reheating time Ts when reheating with the microwave having the same output value W1 as the previous heating. Next, based on the elapsed time Tk timed by the time measuring means 100b, it is determined by the reheating determination means 100d whether or not it should be reheated by the microwave. When the reheating determination unit 100d determines that reheating should be performed, the reheating time Ts calculated by the heating time calculation unit 100c is the microwave having the same output value W1 as the previous heating. The notification means 100e displays on the liquid crystal display unit 7 that the reheating should be performed to notify the user.

  The user views the display on the liquid crystal display unit 7 and operates the operation unit 3 to start reheating, so that the reheating is performed with the microwave having the same output value W1 as the previous heating and the reheating time Ts. Is called.

  Note that the notification unit 100e is not limited to the display by the liquid crystal display unit 7, and may notify the user by sound from the sound output unit.

  Thus, according to the said heating cooker, it becomes possible to determine easily whether it should reheat. Further, when reheating is to be performed, heating can be performed with an optimal heating time Ts. In the heating cooker according to the present invention, the necessity for reheating and the calculation of the reheating time Ts are automatically performed by the control program, so that the user does not need to make an advanced determination.

  Further, when the elapsed time Tk timed by the time measuring means 100b is equal to or less than the preset determination time Tx, it is not notified that reheating should be performed. By setting the determination time Tx so as not to be heated, notification of reheating is not unnecessary, and convenience is improved.

  Further, the heating time calculation means 100c uses the microwave output value W1 during the previous heating, the heating time T1 during the previous heating, and the elapsed time Tk timed by the time measuring means 100b. In addition to the elapsed time Tk, a more optimal reheating time Ts can be obtained by considering the microwave output value W1 during the previous heating and the heating time T1 during the previous heating. When the microwave output value W1 and the heating time T1 at the previous heating are used, the total amount of heat given to the object to be heated at the previous heating can be obtained, and the amount of heat released during the elapsed time Tk by experiments and simulations. Since the reheating time Ts is calculated by the heating time calculating means 100c so that the amount of heat released is replenished by reheating, a more optimal reheating time Ts can be obtained.

  The heating time calculation means 100c uses the microwave output value W1 at the previous heating or the heating time T1 at the previous heating and the elapsed time Tk timed by the time measuring means 100b, so that the reheating time Ts is calculated by the heating time calculation means 100c. May be calculated.

[Second Embodiment]
FIG. 3 is a block diagram showing a schematic configuration of the control device for the heating cooker according to the second embodiment of the present invention. The cooking device of the second embodiment has the same configuration as that of the cooking device of the first embodiment except for the control device, and the same components are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 3, the cooking device according to the second embodiment is different from the cooking device according to the first embodiment in that a temperature change amount calculation unit 100f is provided.

  The controller 100 for the heating cooker includes a microwave control means 100a for controlling the magnetron 10, a time measuring means 100b for measuring the heating time Tk and the like, and a heating time calculating means for calculating the reheating time Ts for reheating. 100c, reheating determination means 100d for determining whether or not to reheat, notifying means 100e for notifying that reheating should be performed, and temperature change amount calculating means for calculating the temperature change amount Δt of the object to be heated 100f.

  In the heating cooker having the above-described configuration, the heating end temperature t1 of the heated object detected by the temperature sensor 20 when the previous heating is completed and the current temperature t2 of the heated object detected by the temperature sensor 20 are set. Based on this, the temperature change amount Δt of the object to be heated is calculated by the temperature change amount calculation means 100f.

  Then, the reheating time Ts is calculated by the heating time calculating means 100c based on the calculated temperature change amount and the elapsed time Tk timed by the time measuring means 100b.

  Based on the temperature change amount Δt of the object to be heated and the elapsed time Tk, the heat radiation amount during the elapsed time Tk is estimated through experiments and simulations, and the heat radiation amount is supplemented by reheating. The reheating time Ts is calculated from 100c.

  Therefore, a more optimal reheating time Ts can be obtained.

  The heating cooker of the second embodiment has the same effect as the heating cooker of the first embodiment.

[Third Embodiment]
FIG. 4 is a block diagram showing a schematic configuration of a control device for a heating cooker according to a third embodiment of the present invention. The cooking device of the third embodiment has the same configuration as that of the heating cooking device of the first embodiment except for the control device, and the same components are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 4, the heating cooker according to the third embodiment is different from the heating cooker according to the first embodiment in that it includes a temperature change rate calculation means 100g and a heated object feature extraction means 100h.

  The controller 100 for the heating cooker includes a microwave control means 100a for controlling the magnetron 10, a time measuring means 100b for measuring the heating time Tk and the like, and a heating time calculating means for calculating the reheating time Ts for reheating. 100c, reheating determination means 100d for determining whether or not to reheat, notifying means 100e for notifying that reheating should be performed, and temperature change rate calculating means for calculating the temperature change rate ta of the object to be heated 100 g and a heated object feature extracting means 100 h for extracting the characteristics of the heated object.

  In the cooking device configured as described above, the heating end temperature t1 of the heated object detected by the temperature sensor 20 at the time when the previous heating is completed, the current temperature t2 of the heated object detected by the temperature sensor 20, and Based on the elapsed time Tk timed by the time measuring means 100b, the temperature change rate ta of the object to be heated is calculated by the temperature change rate calculating means 100g.

  Then, based on the temperature change rate ta calculated by the temperature change rate calculating means 100g, the feature of the heated object is extracted by the heated object feature extracting means 100h. Here, the characteristics of the object to be heated are foods that are easier to cool as the temperature change rate ta is larger (foods that have a small amount of water and a small specific heat), and foods that are difficult to cool as the temperature change rate ta is small (a large amount of water and specific heat). Is a big food). Therefore, a food that is easy to cool as a feature of the object to be heated shortens the reheating time Ts, while a food that is difficult to cool as a feature of the object to be heated increases the reheating time Ts.

  The reheating time Ts is calculated by the heating time calculating means 100c based on the characteristics of the heated object extracted by the heated object feature extracting means 100h.

  Therefore, a more optimal reheating time Ts can be obtained.

  The heating cooker of the said 3rd Embodiment has an effect similar to the heating cooker of 1st Embodiment.

  In the said 1st-3rd embodiment, although the heating cooker which performs the heating cooking using a microwave was demonstrated, while performing the heating cooking using a microwave, this heating cooker which performs oven cooking by heater heating is this. The invention may be applied.

  Although specific embodiments of the present invention have been described, the present invention is not limited to the first to third embodiments, and various modifications can be made within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Heating cooker 2 ... Cabinet 3 ... Operation part 4 ... Door 5 ... Handle 6 ... Window 7 ... Liquid crystal display part 10 ... Magnetron 12 ... Motor for rotation antennas 20 ... Temperature sensor 100 ... Control apparatus 100a ... Microwave control means 100b ... Time measuring means 100c ... heating time calculating means 100d ... reheating determination means 100e ... notification means 100f ... temperature change amount calculating means 100g ... temperature change rate calculating means 100h ... heated object feature extracting means

Claims (6)

A microwave generating section for generating a microwave for heating an object to be heated in the heating chamber;
Microwave control means for controlling the microwave generator;
Time measuring means for measuring the elapsed time from the time when the heating by the microwave from the microwave generating unit is completed,
A heating cooker, comprising: reheating determination means for determining whether or not to reheat with the microwave based on the elapsed time counted by the timing means. The heating cooker according to claim 1, wherein
Based on the elapsed time measured by the time measuring means, a heating time calculating means for calculating a reheating time when reheating with the microwave having the same output value as the previous heating time,
If it is determined that the reheating determination means should be reheated, it should be reheated with the microwave having the same output value as the previous heating and with the reheating time calculated by the heating time calculating means. A heating cooker comprising an informing means for informing that. The cooking device according to claim 2,
The notification means is
A cooking device according to claim 1, wherein when the elapsed time counted by the timing means is equal to or less than a preset determination time, notification that reheating should be performed is not given. In the heating cooker according to claim 2 or 3,
The heating time calculation means includes
Calculating the reheating time based on at least one of the microwave output value at the time of the previous heating or the heating time at the time of the previous heating and the elapsed time measured by the time measuring means. A heating cooker featuring. In the heating cooker according to any one of claims 2 to 4,
A temperature sensor for detecting the temperature of the object to be heated in the heating chamber;
Based on the temperature at the end of heating of the heated object detected by the temperature sensor at the time when the previous heating is completed and the current temperature of the heated object detected by the temperature sensor, A temperature change amount calculating means for calculating a temperature change amount;
The heating time calculation means includes
A heating cooker characterized in that the reheating time is calculated based on the temperature change amount calculated by the temperature change amount calculating means and the elapsed time timed by the time measuring means. In the heating cooker according to any one of claims 2 to 4,
A temperature sensor for detecting the temperature of the object to be heated in the heating chamber;
The temperature at the end of heating of the heated object detected by the temperature sensor when the previous heating was completed, the current temperature of the heated object detected by the temperature sensor, and timed by the time measuring means A temperature change rate calculating means for calculating a temperature change rate of the object to be heated based on the elapsed time;
A heated object feature extracting means for extracting features of the heated object based on the temperature change rate calculated by the temperature change rate calculating means,
The heating time calculation means includes
A heating cooker characterized in that the reheating time is calculated based on the feature of the heated object extracted by the heated object feature extracting means.

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