JP5945800B2 - Cooker - Google Patents

Description

  The present invention relates to a heating cooker that heats food with a plate without using a saucer or a grill.

  Conventionally, this type of heating cooker is provided with a temperature detection means in the cooking chamber, and it is possible to determine the load amount of the cooked food from the detection result of the atmospheric temperature in the cooking chamber or to adjust the temperature. Heating is performed, and the detection result of the tray temperature detection means is used only to prevent ignition or to determine whether or not there is water in the tray (see, for example, Patent Document 1).

JP 2008-259550 A

  However, in the conventional configuration, when cooking is performed with a heating cooker configured to place and cook the food on the plate without using a saucer or a grille, the plate itself has a heavy load and thus is provided in the cooking chamber. It becomes difficult to determine the load amount of the cooked food only by the result of the temperature detection means.

  In addition, since the tray temperature detecting means is not in contact with the food, it is impossible to determine the amount of load on the food, and it is difficult to accurately determine the amount of load when heating is performed using a plate.

  Furthermore, when cooking is performed with the food being placed on the plate, the heat from the upper heater is directly applied to the plate, and the heat is transmitted to the lower surface of the food by conduction. Therefore, the bottom surface is burnt very well, and conversely, a cooked product with a large load and a large surface area has a problem that the bottom surface tends to be hard to burn because the heat of the top heater is not easily transmitted to the bottom surface.

  In consideration of the unique characteristics of plate baking, it is necessary to set a control pattern both automatically and manually.

  The present invention solves the above-mentioned conventional problems. In a heating cooker configured to cook a food by placing the food on a plate without using a saucer or a grill, when cooking the food on the plate An object of the present invention is to provide a cooking device capable of making the front and back baked colors and workmanship the same regardless of what is cooked or loaded.

In order to solve the above-described conventional problems, a heating cooker according to the present invention includes a plate on which an object to be cooked is placed, a temperature detection unit that detects the temperature of the plate, a lower heater provided below the plate, and the A cooking chamber having an upper heater provided above the plate, and a control unit for controlling the heating output of the lower heater and the upper heater. The control unit includes both the upper heater and the lower heater. After energizing substantially the same heating output and starting heating, when the rate of increase in the plate temperature detected by the temperature detection unit is faster than a predetermined value, the heating output of the lower heater is suppressed, and the upper heater Suppresses the amount of heating output reduction rate to be greater than 0 and less than the amount of heating output reduction rate of the lower heater.

  Thus, when cooking is performed by placing the food on the plate, the color of the front and back and the workmanship can be made the same regardless of the food and load.

  The cooking device of the present invention can make the finish of the front and back the same regardless of what is cooked and the load, and can obtain a good finish, so that cooking can be performed freely on the plate, saucer and grill The user's satisfaction is also improved.

Schematic block diagram of a heating cooker in Embodiment 1 of the present invention (A) Graph of heating time and temperature detection unit temperature of heating cooker in embodiment 1 of the present invention, (b) Heating time and heater output when load of heating cooker is small in embodiment 1 of the present invention (C) Timing chart of heating time and heater output when the load on the heating cooker in Embodiment 1 of the present invention is large, (d) Small load on the heating cooker in Embodiment 1 of the present invention Heating time and heater output timing chart Change figure of plate temperature of heating cooker and heating output in Embodiment 2 of the present invention

1st invention has the plate which mounts a to-be-cooked object, the temperature detection part which detects the temperature of the said plate, the lower heater provided below the said plate, and the upper heater provided above the said plate inside A cooking chamber, and a control unit that controls the heating output of the lower heater and the upper heater, and the control unit energizes both the upper heater and the lower heater to substantially the same heating output and starts heating, When the rate of increase of the plate temperature detected by the temperature detection unit is faster than a predetermined value, the heating output of the lower heater is suppressed, and the upper heater reduces the amount of reduction in heating output from 0. large, by the heating output of the reduction ratio of the amount smaller than so as to suppress the cooker of the lower heater, efficiently without load is too scorched backside even less surface area is less food, front and back It becomes possible to adjust the browned.

2nd invention has in the inside the plate which mounts a to-be-cooked object, the temperature detection part which detects the temperature of the said plate, the lower heater provided below the said plate, and the upper heater provided above the said plate A cooking chamber, and a control unit that controls the heating output of the lower heater and the upper heater, and the control unit energizes both the upper heater and the lower heater to substantially the same heating output and starts heating, When the rate of increase in the plate temperature detected by the temperature detection unit is equal to or greater than a predetermined value, the heating operation of the lower heater is stopped, and the upper heater increases the amount of heating output reduction rate to be greater than zero. , it is suppressed to be less than the amount of reduction ratio of heating power of the lower heater, if lower than the predetermined value, the lower heater and the upper heater to continue the same heating output start heating , Regardless of the load amount of the food, it can be obtained for both the front and rear efficient optimal workmanship.

3rd invention has inside the plate which mounts a to-be-cooked object, the temperature detection part which detects the temperature of the said plate, the lower heater provided below the said plate, and the upper heater provided above the said plate A cooking chamber, and a control unit that controls the heating output of the lower heater and the upper heater, and the control unit energizes both the upper heater and the lower heater to substantially the same heating output and starts heating, When the plate temperature detected by the temperature detection unit is equal to or higher than a predetermined value, the heating output of the lower heater is suppressed, and the upper heater has a heating output reduction rate larger than 0, and the lower heater By using a heating cooker that suppresses the amount to be smaller than the amount of reduction in the heating output, it is possible to always optimally heat the back surface where the amount of heat received is likely to vary depending on the amount of load.

4th invention has a plate which mounts a to-be-cooked object, the temperature detection part which detects the temperature of the said plate, the lower heater provided below the said plate, and the upper heater provided above the said plate inside A cooking chamber, and a control unit that controls the heating output of the lower heater and the upper heater, and the control unit energizes both the upper heater and the lower heater to substantially the same heating output and starts heating, When the plate temperature detected by the temperature detection unit becomes equal to or higher than a predetermined value , the heating operation of the lower heater is stopped, and the upper heater has a heating output reduction rate amount larger than 0, By suppressing it to be smaller than the amount of the heating output reduction rate, it is possible to obtain an optimal result on both the front and back regardless of the load amount of the food.

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)
FIG. 1: shows the schematic block diagram of the heating cooker in the 1st Embodiment of this invention.

  In FIG. 1, a plate 1 on which food 3 is placed, a temperature detection unit 2 that detects the temperature of the plate 1, a lower heater 4 below the plate 1, an upper heater 5 above the plate 1, cooking for cooking The control unit 7 controls the output of the lower heater 4 and the upper heater 5 according to the temperature detection result from the storage 6 and the temperature detection unit 2 and the information from the operation unit 8.

  FIG. 2A is a graph of the heating time and temperature detection unit temperature of the heating cooker in the first embodiment of the present invention, and FIG. 2B is a small load of the heating cooker in the first embodiment of the present invention. (C) is a timing chart of the heating time and heater output in the first embodiment of the present invention, and (d) is a timing chart of the heating time and heater output when the load on the heating cooker is large in the first embodiment of the present invention. It is a timing chart of the heating time and heater output when the load of the heating cooker in the first embodiment is small, the temperature rise rate to a predetermined value and a change diagram of the heating output by the result.

  The operation and action of the cooking device configured as described above will be described below.

  In FIG. 1, when the user places the food 3 to be heated on the plate 1 in the cooking cabinet 6 and selects a cooking course that matches the food 3 with the operation unit 8, the information is transmitted to the control unit 7. Then, the outputs of the upper heater 5 and the lower heater 4 are determined.

  When heating is started and the time required for the temperature detection unit 2 to detect a predetermined temperature, for example, 220 ° C., as shown in FIG. It is determined that the load is in a small load zone (the load is small) and the output of the lower heater 4 is suppressed by 30%, for example, as shown in FIG.

  The output of the upper heater 5 is not changed, and the output at the start of heating, for example, 1000 W is maintained. At this time, when the output of the upper heater 5 is reduced, it may be higher than the output ratio suppressed by the lower heater 4, so the heating may be performed with an output that is less than 30%, for example, 20%.

  When it is determined that the load is a large load zone with a large amount of food (a large amount of load), the output after the determination is not changed for both the lower heater 4 and the upper heater 5 as shown in FIG. good.

  Further, the rate of increase of the plate temperature detected by the temperature detection unit 2 does not have to be measured from the start of heating, but how much the temperature rises during a predetermined time, for example, 300 seconds, or a predetermined temperature increase value, for example, 40 It may be determined by the time required for ° C.

  In addition, when the plate 1 starts to be heated at a high temperature, the temperature detection unit 2 cannot obtain an accurate temperature increase rate result, so that the detection result of the temperature detection unit 2 is below a predetermined temperature, for example, 40 ° C. The controller 7 may not start outputting the lower heater 4 and the upper heater 5 until it is lowered, and cooking may be started after it is lowered.

  In addition, a temperature detector (not shown) for measuring the temperature in the cooking cabinet 6 is provided in the cooking cabinet 6 in order to know exactly whether only the plate 1 is hot or the whole cooking cabinet 6 is hot. It is also possible to determine the outputs of the lower heater 4 and the upper heater 5 from the detection result of the temperature detection unit 2 and the two temperature detection results.

  Further, in the case of a small load zone in which the plate temperature rising speed detected by the temperature detector 2 is faster than the predetermined value shown in FIG. 2A, the heating operation of the lower heater 4 is performed as shown in FIG. In the case of a large load zone that is slower than a predetermined value, the upper heater 5 is kept heated. As shown in FIG. 2C, the lower heater is heated according to the load amount so as to continue the heating operation of the lower heater. The heating pattern of 4 may be changed.

  As described above, in the present embodiment, after both the upper heater and the lower heater are energized to start heating, when the plate temperature rising rate detected by the temperature detector is faster than a predetermined value, By suppressing the heating output and not suppressing the heating output of the upper heater, or by suppressing the heating output of the upper heater so that it becomes a reduction amount smaller than the reduction amount of the heating output of the lower heater, the surface area is particularly small and the load amount is small. In the case of food with a small amount of food, the heat from the upper heater is absorbed by the plate and transferred to the back of the food by conduction. Regardless of the size or surface area, you can always get the best workmanship without any difference.

(Embodiment 2)
FIG. 3 is a change diagram of the plate temperature and the heating output of the cooking device according to the second embodiment of the present invention.

  In FIG. 3, the difference from the first embodiment is that the lower heater 4 and the upper heater 5 each output an output value determined in the first step, for example, 1000 W, and the temperature detector 2 has a predetermined temperature, for example, 220 ° C. Is detected, the heating output of the lower heater 4 is suppressed, and the heating output of the upper heater 5 is not suppressed, and the temperature of the plate 1 is controlled by the temperature detection unit 2 or the heating is performed in the first step. When the heater 4 and the upper heater 5 output a predetermined output value, for example, 1000 W, and the temperature detector 2 detects a predetermined temperature, for example, 220 ° C., as shown in the second step (b) of FIG. Compared to the heating output before the plate temperature reaches a predetermined value, for example, 220 ° C., for example, 1000 W, the heating output of the upper heater 5 is set to a reduction amount smaller than the reduction amount of the heating output of the lower heater 4. For example, upper heater 5 20%, the lower heater 4 30%, lowered, predetermined temperature and the plate 1 at the temperature detector 2, and temperature control, for example 220 ° C., is to perform heating.

  Further, as shown in the second step (c) of FIG. 3, when the plate temperature reaches a predetermined value, for example, 200 ° C., the temperature is adjusted only by the upper heater 5 and the heating operation of the lower heater is stopped. You can also

  As described above, in the present embodiment, after both the upper heater and the lower heater are energized to start heating, when the plate temperature detected by the temperature detector becomes a predetermined value or more, the heating output of the lower heater And the heating output of the upper heater is not suppressed, or the heating output of the upper heater is suppressed to be a reduction amount smaller than the reduction amount of the heating output of the lower heater. Regardless of the surface area, the back surface, which is most affected by plate cooking, can always be cooked with the same precision.

  Further, by providing another internal temperature detection unit in the cooking chamber 6, the temperature detection unit 2 controls the output of the lower heater 4, and the internal temperature detection unit 4 is controlled by the control unit 7. Cooking can also be performed.

  As described above, when the cooking device according to the present invention cooks in a cooking chamber using a plate, by changing the output of the upper and lower heaters according to the temperature detection result of the plate, Since it is possible to perform optimum heating both front and back regardless of the surface area, it is effective for use as a cooker.

DESCRIPTION OF SYMBOLS 1 Plate 2 Temperature detection part 3 Cooked food 4 Lower heater 5 Upper heater 6 Cooking chamber 7 Control part 8 Operation part

Claims (4)

A plate for placing an object to be cooked, a temperature detector for detecting the temperature of the plate, a lower heater provided below the plate, a cooking chamber having an upper heater provided above the plate, and the lower A control unit that controls a heating output of the heater and the upper heater, and the control unit detects both of the upper heater and the lower heater by applying substantially the same heating output to start heating and then detecting the temperature detecting unit. When the plate temperature increase rate is faster than a predetermined value, the heating output of the lower heater is suppressed, and the upper heater has a heating output reduction rate amount larger than 0, A cooking device that suppresses the heating output to be smaller than the amount of reduction. A plate for placing an object to be cooked, a temperature detector for detecting the temperature of the plate, a lower heater provided below the plate, a cooking chamber having an upper heater provided above the plate, and the lower A control unit that controls a heating output of the heater and the upper heater, and the control unit detects both of the upper heater and the lower heater by applying substantially the same heating output to start heating and then detecting the temperature detecting unit. When the plate temperature increase rate is equal to or higher than a predetermined value, the heating operation of the lower heater is stopped, and the upper heater has a heating output reduction rate amount larger than 0, A heating cooker in which the lower heater and the upper heater continue the same heating output as the start of heating when the heating output is suppressed to be smaller than the amount of reduction in heating output and is slower than the predetermined value. A plate for placing an object to be cooked, a temperature detector for detecting the temperature of the plate, a lower heater provided below the plate, a cooking chamber having an upper heater provided above the plate, and the lower A control unit that controls a heating output of the heater and the upper heater, and the control unit detects both of the upper heater and the lower heater by applying substantially the same heating output to start heating and then detecting the temperature detecting unit. the plate temperature to becomes equal to or larger than a predetermined value, to suppress the heat output of the lower heater, and the on heater, the amount of reduction rate of heat output greater than zero, reducing the proportion of heating output of the lower heater A cooking device that suppresses the amount to be smaller than the amount. A plate for placing an object to be cooked, a temperature detector for detecting the temperature of the plate, a lower heater provided below the plate, a cooking chamber having an upper heater provided above the plate, and the lower A control unit that controls a heating output of the heater and the upper heater, and the control unit detects both of the upper heater and the lower heater by applying substantially the same heating output to start heating and then detecting the temperature detecting unit. plate temperature to is equal to or over a predetermined value or more, stops the heating operation of the lower heater, and the on heater, the amount of reduction rate of heat output greater than zero, reducing the proportion of heating output of the lower heater A cooking device that suppresses the amount to be smaller than the amount .