JP5241566B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device having heaters above and below a heating chamber.

  A lower electric heater and an upper electric heater are provided in the heating chamber of the roaster, the saturated steam generated outside the heating chamber is guided to the heating chamber, and the saturated steam is sprayed on the lower electric heater in the heating chamber. A heating cooker that generates superheated steam and combines the heating by the superheated steam and the heating by the lower electric heater and the upper electric heater to optimally cook the food to be cooked -22790 (Patent Document 1)).

  However, in the conventional cooking device disclosed in Patent Document 1, the upper electric heater and the lower electric heater in the roaster are arranged in an exposed state in the heating chamber. Therefore, in the heating chamber, when food is heated only by the upper electric heater and the lower electric heater, oil from the food adheres to the upper electric heater and the lower electric heater, resulting in smoke and ignition. There's a problem. For this reason, there is a problem that the upper electric heater and the lower electric heater are contaminated and time-consuming to clean.

  Therefore, although not a conventional technique, a heating cooker has been proposed in which an upper heater attached to the upper part of the heating chamber and a lower heater attached to the lower part are partitioned by the room. According to this cooking device, since the upper heater and the lower heater are housed in the upper heater chamber and the lower heater chamber, there is no smoke or ignition due to oil from food adhering to both the heaters, There is no dirt.

  However, it has been found that the heating cooker having the upper heater chamber and the lower heater chamber has the following problems. That is, in such a heating cooker, the temperature in the heating chamber is controlled based on the detection temperature of the temperature sensor installed in the upper heater chamber and the lower heater chamber. However, since the upper heater chamber and the lower heater chamber are separated from the heating chamber, a deviation occurs between the temperature in the vicinity of the heated food material in the heating chamber and the temperature detected by the upper and lower temperature sensors. There is a problem that the temperature control of is very difficult.

  In particular, when food to be heated is placed in the heating chamber, the temperature in the heating chamber rises with a delay compared to the temperature in the upper and lower heater chambers, so that even after the upper and lower heaters reach their respective target temperatures. Since the temperature in the heating chamber gradually rises and continues to rise even after reaching the target temperature in the heating chamber, it is very difficult to maintain the target temperature. For this reason, grilling with grilling is possible, but in oven cooking that requires delicate temperature control, the surface of the cake is burnt or the pudding gets hot, so a good finish cannot be obtained There is a problem.

JP 2009-22790 A

  Therefore, an object of the present invention is to provide a heating cooker that can obtain a good finish in oven cooking that requires delicate temperature control even when the upper heater and the lower heater are separated by a chamber. is there.

In order to solve the above problems, the heating cooker of the present invention is:
A heating cabinet;
An upper heater chamber located above the heating chamber;
An upper heater provided in the upper heater chamber;
A lower heater chamber located below the heating chamber;
A lower heater provided in the lower heater chamber;
An upper heater chamber temperature sensor for detecting a temperature related to the upper heater chamber;
A lower heater chamber temperature sensor for detecting a temperature related to the lower heater chamber;
A heating chamber temperature sensor for detecting the temperature in the heating chamber;
The upper heater is driven so that the temperature detected by the upper heater chamber temperature sensor becomes a preset target temperature of the upper heater chamber, and the temperature detected by the lower heater chamber temperature sensor is preset. When the lower heater is driven to reach the target temperature of the lower heater chamber and the temperature in the heating chamber detected by the heating chamber temperature sensor is equal to or higher than a preset target temperature of the heating chamber, A heating control unit for controlling so as to reduce the output of at least one of the heater and the lower heater ;
The target temperature of the upper heater chamber and the target temperature of the lower heater chamber are set to values obtained by adding a positive additional temperature to the target temperature of the heating chamber,
The heating control unit adds the at least one target temperature of the target temperature of the upper heater chamber and the target temperature of the lower heater chamber when the temperature in the heating chamber becomes equal to or higher than the target temperature of the heating chamber. The output of at least one of the upper heater and the lower heater is reduced by decreasing the temperature .

  According to the above configuration, in addition to the upper heater chamber temperature sensor and the lower heater chamber temperature sensor, the heating chamber temperature sensor for detecting the temperature in the heating chamber is provided, and the temperature in the heating chamber is set as a target by the heating control unit. When the temperature exceeds the temperature, the output of at least one of the upper heater and the lower heater is reduced. Therefore, even if the upper heater and the lower heater are housed indoors to prevent smoke and fire due to oil, the temperature in the heating chamber can be maintained at a desired temperature according to cooking. The finish can be improved.

Moreover, in the heating cooker of one embodiment,
The heating control unit
When the temperature in the heating chamber detected by the heating chamber temperature sensor overshoots to a preset temperature higher than the target temperature of the heating chamber, the target temperature of the upper heater chamber and the lower heater It has a target temperature correction section that creates a corrected target temperature lower than at least one of the target temperatures of the chamber and sets it as the target temperature of at least one of the upper heater and the lower heater.

  According to this embodiment, when the temperature in the heating chamber overshoots to a set temperature, at least one of the target temperature of the upper heater chamber and the target temperature of the lower heater chamber is set to a lower corrected target temperature. I am trying to fix it. Therefore, even when the upper heater and the lower heater are housed in the upper and lower heater chambers, it is possible to suppress hunting of the temperature in the heating chamber when the heating load suddenly fluctuates. It can rapidly converge to the target temperature of the heating chamber.

Moreover, in the heating cooker of one embodiment,
A load determining unit that measures an elapsed time during which the temperature in the heating chamber detected by the heating chamber temperature sensor increases by a preset temperature, and determines a heating load based on the elapsed time; Yes.

  According to this embodiment, the heating load can be automatically determined, and the target temperature of the upper heater chamber and the lower heater chamber can be set according to the heating load.

Moreover, in the heating cooker of one embodiment,
The heating control unit includes a target temperature setting unit that sets target temperatures of the upper heater chamber and the lower heater chamber in accordance with the heating load determined by the load determination unit.

  According to this embodiment, the target temperatures of the upper heater chamber and the lower heater chamber can be automatically set according to the automatically determined heating load. Therefore, the temperature in the heating chamber can be controlled to a temperature corresponding to the heating load, and a good cooking finish can always be obtained even if the heating load changes.

Moreover, in the heating cooker of one embodiment,
A steam generator for supplying steam into the upper heater chamber;
A steam path for guiding the steam generated in the steam generating section into the upper heater chamber,
The upper heater chamber has a steam supply hole for ejecting steam into the heating chamber,
The steam generated in the steam generating section is guided into the upper heater chamber by the steam path, and is sprayed from the steam supply hole in the upper heater chamber to the food to be heated in the heating chamber.

  According to this embodiment, steam is blown from the steam supply hole to the food to be heated in the heating chamber. Therefore, the finish of the dish is moist and a better finish can be obtained.

Moreover, in the heating cooker of one embodiment,
A steam generator for supplying steam into the lower heater chamber;
A steam path for guiding the steam generated in the steam generating section into the lower heater chamber,
The lower heater chamber has a steam supply hole for ejecting steam into the heating chamber,
Steam generated in the steam generating section is guided into the lower heater chamber by the steam path, and sprayed from the steam supply hole in the lower heater chamber to the heated food in the heating chamber.

  According to this embodiment, steam is blown from the steam supply hole of the lower heater chamber to the food to be heated in the heating chamber. Therefore, it is possible to wrap the food to be heated with the steam rising from the lower heater chamber and cook it more effectively, and to obtain a better finish.

Moreover, in the heating cooker of one embodiment,
The steam generation unit sprays the generated steam continuously to the heated food material for a predetermined period of time, so that the salt content and the oil and fat content on the heated food material surface are removed together with the condensed water of the steam. It has become.

  According to this embodiment, it is possible to remove excess salt and oil and fat from the surface of the heated food material, and to obtain a salt reducing effect.

Moreover, in the heating cooker of one embodiment,
In the case of performing a salt reduction process for removing the salt and fats and oils on the surface of the heated food material together with the condensed water of the steam, the heating control unit sets the target temperatures of the upper heater chamber and the lower heater chamber to oven heating. In this case, the temperature is set lower than the target temperature.

  According to this embodiment, when performing the salt reduction treatment, the temperature in the upper heater chamber and the temperature in the lower heater chamber are set lower than in the case of oven heating. Therefore, the steam introduced into the upper heater chamber is supplied to the heated food material without being condensed or evaporated in the upper heater chamber. Thus, excess salt can be reduced by condensation of steam in the heated food material.

Moreover, in the heating cooker of one embodiment,
A door opening / closing detector for detecting opening / closing of the door attached to the heating chamber;
Measure the elapsed time while the temperature in the heating chamber detected by the heating chamber temperature sensor rises from the preset lower set temperature to the upper set temperature, and determine the amount of heating based on this measurement result A heating amount determination unit,
When the door opening / closing detection unit detects opening / closing of the door in the heating amount determination period in which the heating amount determination is performed or in the vicinity of the heating amount determination period, the lower heating temperature determination unit The elapsed time is measured by shifting the upper set temperature to the high temperature side.

  According to this embodiment, when the door is opened and closed in the heating amount determination period or in the vicinity thereof, the lower and upper set temperatures are shifted and the heating amount is determined again. Therefore, it is possible to prevent an error in the heating amount due to the opening and closing of the door.

Moreover, in the heating cooker of one embodiment,
When the heating amount determination unit fails to determine the heating amount in the preset heating amount determination period or all of the vicinity thereof, the heating amount determination result is set to a preset minimum value. To do.

  According to this embodiment, cooking can be performed even when the heating amount determination cannot be performed in the heating amount determination period or in the vicinity thereof.

  As apparent from the above, the heating cooker according to the present invention includes a heating chamber in addition to an upper heater chamber temperature sensor that detects a temperature related to the upper heater chamber and a lower heater chamber temperature sensor that detects a temperature related to the lower heater chamber. When a heating chamber temperature sensor for detecting the temperature inside is provided and the upper heater and the lower heater are driven by the heating control unit according to the detected temperatures of the upper heater chamber temperature sensor and the lower heater chamber temperature sensor, When the temperature in the heating chamber becomes equal to or higher than the target temperature, the output of at least one of the upper heater and the lower heater is reduced, so that the upper heater and the lower heater are placed indoors in order to prevent smoke and fire due to oil. Even when housed in the container, the temperature in the heating chamber can be maintained at a desired temperature according to cooking, and the finishing of cooking can be improved.

It is a perspective view in the IH cooking heater as an example of the heating cooker of this invention. It is a front view of the state which removed the front panel in FIG. It is a figure which shows typically the vapor | steam path | route from the steam generator in FIG. It is a block diagram of the heating control system in the roaster part of FIG. It is a figure which shows the control result by the heating control part in FIG. It is a figure which shows the conventional control result.

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

  FIG. 1 is a perspective view of an IH (electromagnetic induction heating) cooking heater as an example of a heating cooker according to the present embodiment as viewed from the front and obliquely above. FIG. 2 is a front view showing a state in which the front panel is removed in FIG.

  As shown in FIGS. 1 and 2, the present IH cooking heater has a top plate 2 provided on the upper surface of the cabinet 1 and two IH heaters, a right IH heater 3 and a left IH heater 4, on the front side. It is arranged with a gap. Further, a central IH heater 5 is arranged between the IH heaters 3 and 4 and on the rear side. An intake port 6 is provided on the right side of the rear surface side of the top plate 2, and an exhaust port 7 is provided on the left side of the rear surface side of the top plate 2. An IH operation unit 8 is disposed on the front side of the top plate 2. Here, the “front side” is the opening side of the heating chamber 10 of the roaster unit 9, and the “rear side” is the side opposite to the opening side of the heating chamber 10.

  A steam generator 12 is disposed at the center of the front panel 11 on the front side of the cabinet 1, and a heating chamber 10 is disposed on the left side of the front panel 11. On the front side of the heating chamber 10 and the steam generator 12, there is provided a door 14 with a handle that is slidably attached in the front-rear direction by rail units 13a and 13b.

  A packing (not shown) is attached around the opening of the heating chamber 10 in the front panel 11, and the periphery of the opening of the heating chamber 10 is sealed by the packing with the door 14 with a handle closed. . When the door 14 with the handle is closed, a gap for ventilation is provided between the front side of the steam generator 12 and the door 14 with the handle.

  The steam generator 12 includes a water tank 15 and a heater unit 16 that heats the water tank 15. As for this heater part 16, the heating part protrudes from the baseplate in the shape of a truncated cone. By heating the water tank 15 with the heater unit 16, the water in the water tank 15 boils and steam is generated. The steam generated in this manner is supplied to the heating chamber 10, and the cooking material is heated and cooked by the steam supplied from the steam generator 12 and a heat source such as a sheathed heater.

  Further, a front operation unit 19 for the roaster unit 9 having a liquid crystal display unit 17 and an operation key unit 18 is disposed on the right side of the steam generator 12 in the front panel 11.

  As shown in FIG. 2, the roaster section 9 includes a heating chamber 10, an upper heater 20 made of, for example, a sheathed heater disposed on the upper portion of the heating chamber 10, and, for example, a seeds disposed on the lower portion of the heating chamber 10. The lower heater 21 made of a heater or the like, the upper heater chamber 22 partitioned from the heating chamber 10 by a metal plate covering the upper heater 20, and the heating chamber 10 is partitioned by a metal plate covering the lower heater 21. And a lower heater chamber 23. Thus, by storing the upper heater 20 and the lower heater 21 in the upper heater chamber 22 and the lower heater chamber 23, the oil from the heated food material adheres to both the heaters 20, 21. There is no smoke or fire, and both the heaters 20 and 21 can be prevented from being soiled.

  A right IH inverter circuit 24 for the right IH heater 3, a central IH inverter circuit 25 for the central IH heater 5, and a left IH are located behind the front operation unit 19 and on the right side of the steam generator 12. A left IH inverter circuit 26 for the heater 4 is stacked and disposed.

  FIG. 3 schematically shows a steam path for supplying the steam generated by the steam generator 12 to the heating chamber 10. The upper part of the water tank 15 of the steam generator 12 is connected to the upper heater chamber 22 by a steam tube 27. Then, the saturated steam supplied to the upper heater chamber 22 via the steam tube 27 is ejected into the heating chamber 10 from a steam supply hole 28 formed on the lower surface of the upper heater chamber 22. At that time, the superheated steam can be ejected into the heating chamber 10 by driving the upper heater 20 to further heat the saturated steam.

  That is, the functions of the roaster unit 9 in the present embodiment include grill cooking and oven cooking by the upper heater 20 and the lower heater 21, grill cooking and oven cooking by superheated steam from the steam supply hole 28, and from the steam supply hole 28. For example, salt-reduced cooking by condensation of saturated steam, steam cooking with saturated steam from the steam supply hole 28, and the like.

  By the way, in the present embodiment, the upper heater 20 and the lower heater 21 of the roaster section 9 are accommodated in the upper heater chamber 22 and the lower heater chamber 23. Therefore, when the temperature in the heating chamber 10 is controlled based only on the temperature detected by the lower temperature sensor after being installed in the upper heater chamber 22 and the lower heater chamber 23, Since there is a deviation from the temperature detected by the lower temperature sensor, it is very difficult to manage the temperature in the heating chamber 10. Therefore, in the present embodiment, as shown in FIG. 3, the upper heater chamber temperature sensor 29 for detecting the temperature in the upper heater chamber 22 and the lower heater chamber temperature sensor 30 for detecting the temperature in the lower heater chamber 23 are used. In addition, a heating chamber temperature sensor 31 that detects the temperature in the heating chamber 10 is provided.

加熱負荷に応じて上ヒータ室２２内温度,下ヒータ室２３内温度および加熱庫１０内温度の目標温度を予め設定し、加熱制御部３２によって、上ヒータ室温度センサ２９,下ヒータ室温度センサ３０および加熱庫温度センサ３１の検出温度に基づいて、加熱庫１０内の温度が目標温度になるように上ヒータ２０と下ヒータ２１との駆動を制御するのである。 And, in the case of grill cooking and oven cooking by the upper heater 20 and the lower heater 21, as shown in Table 1,
Table 1

The target temperature of the upper heater chamber 22, the lower heater chamber 23, and the heating chamber 10 is preset in accordance with the heating load, and the heating controller 32 controls the upper heater chamber temperature sensor 29 and the lower heater chamber temperature sensor. The driving of the upper heater 20 and the lower heater 21 is controlled so that the temperature in the heating chamber 10 becomes the target temperature based on the temperature detected by the heating chamber temperature sensor 31 and the heating chamber temperature sensor 31.

予め設定された設定温度だけ上昇する間の経過時間に基づいて判定される。 The heating load in that case is as shown in Table 2 in which the temperature in the heating chamber 10 detected by the heating chamber temperature sensor 31 is as shown in Table 2.
Table 2

The determination is made based on the elapsed time during which the temperature rises by a preset temperature.

  Each target temperature shown in Table 1 and the temperature and elapsed time for heating load judgment shown in Table 2 are merely examples, and the present invention is not limited to the contents of Tables 1 and 2 and the temperatures described below. Is not to be done.

  FIG. 4 shows a block diagram of the heating control system of the roaster unit 9. Hereinafter, according to FIG. 4, the heating control of the roaster section 9 in the present embodiment will be described.

  The load determination unit 33 of the heating control unit 32 determines the heating load based on the detection signal from the heating chamber temperature sensor 31 and the time signal from the timer 34. And the target temperature setting part 35 according to the said heating load determined by the load determination part 33, the heating category (grill or oven) set from the operation key part 18 of the front operation part 19, and preset temperature, According to Table 1 stored in the memory 36, target temperatures of the upper heater chamber 22 temperature, the lower heater chamber 23 temperature, and the heating chamber 10 temperature are set.

  After that, the heating control unit 32 controls the upper heater drive circuit 37 to drive the upper heater 20, while controlling the lower heater drive circuit 38 to drive the lower heater 21. And if the temperature in the heating chamber 10 detected by the heating chamber temperature sensor 31 becomes more than the said target temperature, the output of the upper heater 20 and the lower heater 21 will be reduced. Specifically, the operations of the upper heater driving circuit 37 and the lower heater driving circuit 38 are stopped. Alternatively, the duty ratio of the on / off operation of the upper heater drive circuit 37 and the lower heater drive circuit 38 is lowered. Alternatively, if the upper heater drive circuit 37 and the lower heater drive circuit 38 are inverter control circuits, the drive frequencies of the upper heater 20 and the lower heater 21 are reduced.

  FIG. 5 shows a heating control unit when the target temperature in the upper heater chamber 22 is 280 ° C., the target temperature in the lower heater chamber 23 is 225 ° C., and the target temperature in the heating chamber 10 is 170 ° C. The control result by 32 is shown. As can be seen from FIG. 5, since the output of the upper heater 20 and the lower heater 21 is reduced when the temperature in the heating chamber 10 reaches the target temperature of 170 ° C., the temperature rise in the heating chamber 10 is suppressed and the target temperature is reduced. Stable at around 170 ° C. As a result, in the case of grill cooking, appetizing burns can be applied to the front and back surfaces of the fish. In addition, in the case of oven cooking, the surface of the cake is not burned and the pudding does not stand up, and a good finished state can be obtained.

  On the other hand, when the temperature in the heating chamber 10 is controlled only by the temperatures in the upper heater chamber 22 and the lower heater chamber 23, the temperature in the upper heater chamber 22 is as shown in FIG. The temperature in the lower heater chamber 23 is controlled to be near the target temperature 225 ° C. near the target temperature 280 ° C., but the temperature in the heating chamber 10 continues to rise gradually even when the target temperature reaches 170 ° C. Therefore, in the case of grill cooking, the front and back surfaces of the fish may be burnt. In addition, in the case of oven cooking, the surface of the cake may be burnt or the pudding may be frustrated.

  Here, as shown in FIG. 3, the heated food 39 is placed directly on the tray 40 in the present embodiment. The tray 40 is heated by the radiant heat from the upper heater chamber 22 and the radiant heat from the lower heater chamber 23. Therefore, when it is not easy to increase the temperature of the tray 40 while maintaining the baking capability because it is easy to burn like “tacking”, the charging to the lower heater 21 is performed regardless of the target temperature shown in Table 1. The electric power is greatly reduced with respect to the electric power supplied to the upper heater 20. For example, it is desirable to set it to 30% or less (including 0%) of the input power to the upper heater 20.

  In the present embodiment, when the temperature in the heating chamber 10 is equal to or higher than the target temperature, the outputs of both the upper heater 20 and the lower heater 21 are reduced. However, the present invention is not limited to this, and the output of at least one of the upper heater 20 and the lower heater 21 may be reduced.

  In the present embodiment, the upper heater 20 and the lower heater 21 are driven in accordance with the heating load determined by the load determination unit 33 so that the food 39 to be heated is cooked. Here, the heating load “no load” means a state in which there is no food to be heated 39 in the heating chamber 10, and when the heating chamber 10 is preheated or the inside of the heating chamber 10 is heated. This corresponds to the case where the food 39 is taken out. Therefore, according to the present embodiment, in the case of the “preheating”, the heating load is in the “no load” state for the series of operations of preheating → input of the heated food 39 → removing the food 39 while being heated. In the case of “input of heated food 39”, the heating control is performed in a state where the heating load is “small or large”, and in the case of “removal of food 39 while heated” Can be dealt with by performing heating control in a state where the heating load is "no load". That is, the heating control can be switched in real time for the above series of operations.

  By the way, when the oven cooking at 200 ° C. is performed on the food to be heated having the heating load “small” as in the case of “take out the food 39 while being heated”, the heating load becomes “no”. In the case of a sudden change, although the heating control is finally performed in the “no load” state as described above, the temperature in the upper heater chamber 22 and the lower heater are changed when the heating load changes. The target temperature of the temperature in the chamber 23 is set higher than the actual heating load (upper heater chamber 22: 275 ° C., lower heater chamber 23: 255 ° C.). Therefore, when the door 14 with the handle is closed, the temperature in the heating chamber 10 rises rapidly, and the temperature in the heating chamber 10 exceeds the target temperature of 200 ° C. within ± 10% of the preferable range and hunts. Resulting in.

  Therefore, the heating control unit 32 refers to the table 1 stored in the memory 36 by the target temperature correction unit 41, and the overshoot detection temperature at which the temperature in the heating chamber 10 is set higher than the target temperature 200 ° C. When overshooting to (220 ° C.), the target temperature of the upper heater chamber 22 is corrected to, for example, 225 ° C. lower than the above 275 ° C. Similarly, the target temperature of the lower heater chamber 23 is corrected to, for example, 205 ° C. lower than the above 255 ° C. By carrying out like this, the hunting of the temperature in the heating chamber 10 can be suppressed within ± 10% with respect to the target temperature of 200 ° C. Therefore, the temperature in the heating chamber 10 can be rapidly converged to the target temperature 200 ° C. Thereafter, as described above, after the load determination unit 33 determines that the heating load is “no”, the control shifts to heating control in a state where the heating load is “no load”.

  In the present embodiment, when the temperature in the heating chamber 10 overshoots to the overshoot detection temperature, the target temperatures of both the upper heater chamber 22 and the lower heater chamber 23 are corrected downward. ing. However, the present invention is not limited to this, and it is only necessary to correct the target temperature of at least one of the upper heater chamber 22 and the lower heater chamber 23 downward.

  In addition, as described above, the function of the roaster unit 9 includes reduced salt cooking by condensation of saturated steam from the steam supply hole 28. In this case, at the time of grill cooking, the saturated steam generated by the steam generator 12 is supplied to the upper heater chamber 22 through the steam tube 27, and is ejected from the steam supply hole 28 into the heating chamber 10 to be heated in the heated food 39. By condensing the saturated steam, excess salt and oil and fat on the surface of the heated food 39 are melted and removed in the condensed water. At that time, if the temperature in the upper heater chamber 22 is too low, steam is condensed in the upper heater chamber 22 and cannot be supplied to the heated food 39, so that the salt reduction treatment cannot be performed. On the other hand, if the temperature in the upper heater chamber 22 is too high, the vapor evaporates in the upper heater chamber 22 and cannot be supplied to the heated food 39, so that the salt cannot be reduced.

  Therefore, in the present embodiment, as shown in Table 1, the target temperature setting unit 35 uses the target temperature of the heating chamber 10 during the salt reduction treatment as the target temperature of the heating chamber 10 during oven cooking. The temperature is set lower than the temperature. Therefore, it is possible to prevent the saturated steam supplied to the upper heater chamber 22 from condensing or evaporating in the upper heater chamber 22, and accurately supplying the heated food material 39 to perform the salt reduction treatment. It can be done.

  It should be noted that the ejection of saturated steam from the steam supply hole 28 into the heating chamber 10 is not limited to the above-described salt-reduced cooking, and the finish of the dish is moistened by adjusting the amount of steam supplied and the like. be able to.

  Moreover, in this Embodiment, the said heating control part 32 performs sequence control according to a cooking menu, and the sequence control which changes according to the quantity (heating amount) of the to-be-heated food 39 in that case I do. Therefore, the heating control unit 32 sets the temperature in the heating chamber 10 detected by the heating chamber temperature sensor 31 from 150 ° C. as the lower set temperature stored in the memory 36 to 150 as the upper set temperature. The first elapsed time while rising to ° C. and the second elapsed time while rising from 210 ° C. to 230 ° C. are measured according to the timing signal from the timer 34, and the heating amount is determined based on the measurement result. A heating amount determination unit 42 is provided.

  By the way, by the heating amount determination unit 42, the first heating amount determination period in which the first elapsed time is measured, the second heating amount determination period in which the second elapsed time is measured, or the first heating. When the door 14 with the handle of the roaster unit 9 is opened near the amount determination period or near the second heating amount determination period, the temperature inside the heating chamber 10 fluctuates and accurate heating amount determination becomes impossible. . Therefore, in the present embodiment, the heating amount determination unit 42 determines the heating amount as follows based on the detection signal from the door opening / closing detection unit 43 including a switch or the like attached to the door 14 with a handle. Do it.

  That is, based on the detection signal from the door opening / closing detection unit 43, the first heating amount determination period or the second heating amount determination period, or the vicinity of the first heating amount determination period or the second heating amount determination period. In the vicinity, it is monitored that the door 14 with the handle is opened. When the door 14 with the handle is opened, the lower set temperature and the upper set temperature are set to the high temperature side for a preset time so as not to affect the opening of the door 14 with the handle. Shift and measure the elapsed time. By doing so, it is possible to prevent an error from occurring in the heating amount of the heated food material 39 due to the opening and closing of the door 14 with the handle.

  Further, in order to open and close the door 14 with the handle, either in the first heating amount determination period or in the vicinity of the first heating amount determination period, or in the second heating amount determination period or in the vicinity of the second heating amount determination period. If the determination of the heating amount cannot be performed, the determination result of the heating amount is set in advance to the minimum amount stored in the memory 36. Thus, even when the heating amount cannot be determined, cooking can be performed.

  In the above embodiment, the load determination unit 33 and the heating amount determination unit 42 are provided separately. However, both the determination units 33 and 42 measure the elapsed time during which the temperature in the heating chamber 10 rises from the lower set temperature to the upper set temperature based on the time signal from the timer 34. . Therefore, it is possible to integrate the load determination unit 33 and the heating amount determination unit 42 into one.

  Further, in the above embodiment, the heating control unit 32 includes the temperature in the upper heater chamber 22 detected by the upper heater chamber temperature sensor 29 and the temperature in the lower heater chamber 23 detected by the lower heater chamber temperature sensor 30. The upper heater 20 and the lower heater 21 are driven based on the temperature. However, the present invention is not limited to this, and the upper heater 20 and the lower heater 21 may be driven based on the temperature of the upper heater chamber 22 and the temperature of the lower heater chamber 23. In short, the driving may be performed based on the temperature related to the upper heater chamber 22 and the temperature related to the lower heater chamber 23.

  Moreover, in the said embodiment, the steam generator 12 is arrange | positioned in the center part of the said front panel 11, and the roaster part 9 is arrange | positioned in the left side of the front panel 11. FIG. However, the present invention does not specify these arrangements. For example, the roaster section 9 may be arranged at the center of the front panel 11 and the steam generator 12 may be arranged on the left or right side of the front panel 11. Absent.

  In the above embodiment, the steam from the steam generator 12 is supplied to the upper heater chamber 22 when cooking with the superheated steam or saturated steam. However, the present invention is not limited to this, and may be supplied to the lower heater chamber 23. By doing so, the heated food 39 can be wrapped and cooked by the steam rising from the steam supply hole of the lower heater chamber 23, so that grill cooking and oven cooking with superheated steam, steaming cooking with reduced steam, reduced salt cooking, etc. Can be performed more effectively than when steam is supplied to the upper heater chamber 22, and a better finish can be obtained.

  Moreover, in the said embodiment, although the case where the heating cooker of this invention was applied to the IH cooking heater was demonstrated to the example, even if it applies to not only this but a microwave oven etc., it does not care. Moreover, in the said embodiment, the heating cooker of this invention is applied to the roaster part which can perform both cooking by the upper heater 20 and lower heater 21 which consist of a sheathed heater etc., and cooking by superheated steam or saturated steam. doing. However, the present invention is not limited to this, only cooking by the upper heater 20 and the lower heater 21, both cooking by the upper heater 20 and the lower heater 21 and cooking by superheated steam or saturated steam, superheated steam or saturation. It can be applied only to cooking with steam.

  According to the cooking device of the present invention, healthy cooking is performed by using steam or superheated steam in a cooking heater (including an electric stove such as an IH heater or an electric heater or a gas stove using an electric stove), a microwave oven, or the like. be able to. For example, in the cooking device of the present invention, superheated steam or saturated steam having a temperature of 100 ° C. or higher is supplied to the food surface, and the superheated steam or saturated steam attached to the food surface is condensed to give a large amount of latent heat of condensation to the food. Therefore, heat can be efficiently transmitted to the food, the food surface is baked crisply, and cooking with a good finish can be performed. Moreover, the condensed water adheres to the surface of the food and drops together with the excess salt and fats and oils, whereby the salt and fats and oils in the foods can be reduced. Further, the inside of the heating chamber 10 is filled with superheated steam or saturated steam and becomes anoxic, thereby enabling cooking while suppressing oxidation of food.

3, 4, 5 ... IH heater,
6 ... Inlet,
7 ... Exhaust port,
9 ... roaster,
10 ... heating chamber,
12 ... steam generator,
14 ... Door with handle,
18 ... operation key part,
19 ... Front operation unit for roaster unit,
20 ... Upper heater,
21 ... Lower heater,
22 ... Upper heater room,
23 ... Lower heater room,
28: Steam supply hole,
29 ... Upper heater chamber temperature sensor,
30 ... Lower heater chamber temperature sensor,
31 ... heating chamber temperature sensor,
32 ... Heating control unit,
33 ... Load determination unit,
35 ... target temperature setting section,
36 ... Memory,
37 ... Upper heater drive circuit,
38 ... Lower heater drive circuit,
39 ... heated ingredients,
40 ... Tray,
41 ... Target temperature correction unit,
42 ... heating amount determination unit,
43: Door open / close detection unit.

Claims (10)

A heating cabinet;
An upper heater chamber located above the heating chamber;
An upper heater provided in the upper heater chamber;
A lower heater chamber located below the heating chamber;
A lower heater provided in the lower heater chamber;
An upper heater chamber temperature sensor for detecting a temperature related to the upper heater chamber;
A lower heater chamber temperature sensor for detecting a temperature related to the lower heater chamber;
A heating chamber temperature sensor for detecting the temperature in the heating chamber;
The upper heater is driven so that the temperature detected by the upper heater chamber temperature sensor becomes a preset target temperature of the upper heater chamber, and the temperature detected by the lower heater chamber temperature sensor is preset. When the lower heater is driven to reach the target temperature of the lower heater chamber and the temperature in the heating chamber detected by the heating chamber temperature sensor is equal to or higher than a preset target temperature of the heating chamber, A heating control unit for controlling so as to reduce the output of at least one of the heater and the lower heater ;
The target temperature of the upper heater chamber and the target temperature of the lower heater chamber are set to values obtained by adding a positive additional temperature to the target temperature of the heating chamber,
The heating control unit adds the at least one target temperature of the target temperature of the upper heater chamber and the target temperature of the lower heater chamber when the temperature in the heating chamber becomes equal to or higher than the target temperature of the heating chamber. The cooking device according to claim 1, wherein the output of at least one of the upper heater and the lower heater is reduced by decreasing the temperature. The heating cooker according to claim 1, wherein
The heating control unit
When the temperature in the heating chamber detected by the heating chamber temperature sensor overshoots to a preset temperature higher than the target temperature of the heating chamber, the target temperature of the upper heater chamber and the lower heater A heating cooker having a target temperature correction unit that creates a corrected target temperature lower than at least one of the target temperatures of the chamber and sets the target temperature of at least one of the upper heater and the lower heater . In the heating cooker according to claim 1 or 2,
A load determination unit is provided that measures an elapsed time during which the temperature in the heating chamber detected by the heating chamber temperature sensor rises by a preset temperature, and determines a heating load based on the elapsed time. A cooking device characterized by that. The cooking device according to claim 3,
The heating controller includes a target temperature setting unit that sets a target temperature of the upper heater chamber and the lower heater chamber in accordance with the heating load determined by the load determination unit. . In the heating cooker according to any one of claims 1 to 4,
A steam generator for supplying steam into the upper heater chamber;
A steam path for guiding the steam generated in the steam generating section into the upper heater chamber,
The upper heater chamber has a steam supply hole for ejecting steam into the heating chamber,
The steam generated in the steam generating section is guided into the upper heater chamber by the steam path, and sprayed from the steam supply hole in the upper heater chamber to the food to be heated in the heating chamber. Cooking cooker. In the heating cooker according to any one of claims 1 to 4,
A steam generator for supplying steam into the lower heater chamber;
A steam path for guiding the steam generated in the steam generating section into the lower heater chamber,
The lower heater chamber has a steam supply hole for ejecting steam into the heating chamber,
The steam generated in the steam generating section is guided into the lower heater chamber by the steam path, and sprayed from the steam supply hole in the lower heater chamber to the food to be heated in the heating chamber. Cooking cooker. In the heating cooker according to claim 5 or 6,
The steam generation unit sprays the generated steam continuously to the heated food material for a predetermined period of time, so that the salt content and the oil and fat content on the heated food material surface are removed together with the condensed water of the steam. A cooking device characterized by being made. The heating cooker according to claim 7, wherein
In the case of performing a salt reduction process for removing the salt and fats and oils on the surface of the heated food material together with the condensed water of the steam, the heating control unit sets the target temperatures of the upper heater chamber and the lower heater chamber to oven heating. A cooking device characterized by being set lower than the target temperature in the case of. The cooking device according to any one of claims 1 to 8,
A door opening / closing detector for detecting opening / closing of the door attached to the heating chamber;
Measure the elapsed time while the temperature in the heating chamber detected by the heating chamber temperature sensor rises from the preset lower set temperature to the upper set temperature, and determine the amount of heating based on this measurement result A heating amount determination unit,
When the door opening / closing detection unit detects opening / closing of the door in the heating amount determination period in which the heating amount determination is performed or in the vicinity of the heating amount determination period, the lower heating temperature determination unit And the cooking device characterized by shifting the said upper side preset temperature to a high temperature side, and measuring elapsed time. The cooking device according to claim 9,
When the heating amount determination unit fails to determine the heating amount in the preset heating amount determination period or all of the vicinity thereof, the heating amount determination result is set to a preset minimum value. A heating cooker characterized by that.

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