JP3023264B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker in which cooking dishes can be arranged in upper and lower stages in a cooking chamber.

[0002]

2. Description of the Related Art In a cooking device such as a microwave oven having an oven function, bread such as butter rolls and cookies are used.
When performing oven cooking of confectionery, a large amount of cooking can be performed at once by placing the top plate on which the food is placed on the support sections provided on the left and right side walls of the heating chamber and arranging it on the top and bottom. Are provided. In this case, when the amount of food is small, cooking can be performed with only one top plate placed in the cooking chamber.

[0003] Conventionally, there have been the following three cases as a heating method when a top plate is used. That is, first, the same cooking is performed without discriminating between the case of performing one-stage cooking using only one top plate and the case of performing two-stage cooking using two top plates. Some cooks heat at the temperature and cooking time. However, in this method, if the cooking temperature and cooking time are set so as to be suitable for single-stage cooking, insufficient heating occurs in the case of two-stage cooking,
In addition, if the cooking temperature and the cooking time are set so as to be suitable for the two-stage cooking, there is a disadvantage that the cooking condition is deteriorated, such as that the food is burned due to excessive heating in the case of the one-stage cooking.

Accordingly, as a second method, separate automatic cooking menus having different cooking temperatures or cooking times for single-stage cooking and two-stage cooking are provided, and each cooking is performed based on a selection operation of an operation panel by a user. Some are made to run. Further, as a third method, an optical sensor for detecting the presence or absence of a top plate is provided in the cooking chamber, and based on the detection of the optical sensor, automatic cooking of single-stage cooking and two-stage cooking is performed. Some have done it.

[0005]

In the second and third methods, heating cooking suitable for each of the single-stage cooking and the two-stage cooking is performed. Thus, it is possible to prevent the cooking condition from being deteriorated. However, the second option that allows the user to select a menu
However, this method has the disadvantage that the configuration of the operation panel becomes complicated and that the user is required to perform troublesome operations. Further, in the third system provided with the optical sensor for detecting the top plate,
There was a problem that the product cost increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cooking dish in which cooking dishes can be arranged in two upper and lower tiers. An object of the present invention is to provide a heating cooker that can perform cooking and can be completed with an inexpensive configuration.

[0007]

Means for Solving the Problems A cooking device according to the present invention comprises:
A heating chamber, a heating means for heating the food contained in the heating chamber, a mounting table provided at the bottom of the heating chamber, and a food that is removably supported on the mounting table and mounted thereon. Detecting the weight of the lower cooking dish, the upper cooking dish which is removably supported on the mounting table above the lower cooking dish and on which the food is mounted, and the weight of the mounting article supported by the mounting table. A weight sensor, and determination means for determining whether single-stage cooking using only the lower cooking dish or double-stage cooking using both the lower cooking dish and the upper cooking dish based on the detected weight of the weight sensor, The present invention is characterized in that it comprises a control means for controlling the heating means based on the judgment by the judgment means (the invention of claim 1).

In this case, a food weight calculating means for calculating the weight of the food based on the determination by the determining means and the weight detected by the weight sensor is provided, and the control means is provided with the calculated weight of the food weight calculating means. It is effective to control at least one of the cooking temperature and the cooking time on the basis of the cooking temperature (the invention of claim 2). Further, it is preferable that the weight of the upper cooking dish is configured to be larger than the specified weight of the food that can be placed on the lower cooking dish (the invention of claim 3). The determination means is configured to determine whether the cooking is one-stage cooking or two-stage cooking by comparing the detected weight of the weight sensor with a determination reference value set to be larger than the total weight of the upper and lower cooking dishes. (Claim 4
Invention).

In the apparatus having first and second heating means having different heating modes, the control means is configured to select the first and second heating means based on the judgment of the judging means. It may be configured (the invention of claim 5). In this case, the first heating means can be constituted by a heater, and the second heating means can be constituted by a hot air generator.
Invention).

At this time, when the determination means determines that the cooking is one-step cooking, the control means selects heating by a heater,
In the case of two-stage cooking, it is effective to select the heating by the hot air generator (the invention of claim 7). Further, the heater may be configured to heat the food from above and below (the invention of claim 8). Further, the control unit may be configured to perform control such that at least one of the cooking temperature and the cooking time is different between the time of heating cooking by the first heating unit and the time of heating cooking by the second heating unit. It may be configured (the invention of claim 9).

[0011]

According to the cooking device of the first aspect of the present invention, the lower cooking dish and the upper cooking dish are detachably supported on a mounting table linked to the weight sensor. Here, the one-stage cooking in which only the lower cooking dish is supported on the mounting table and the two-stage cooking in which both the lower cooking dish and the upper cooking dish are mounted on the mounting table are different from each other. Since the weight of the figurine is naturally different, it is possible to determine whether the cooking is single-stage cooking or double-stage cooking based on the weight detected by the weight sensor. Then, the control device can perform heating cooking according to the number of stages of the cooking dish.

Therefore, it is not necessary for the user to perform a selection operation between the single-stage cooking and the two-stage cooking, and it is automatically determined whether the cooking is the single-stage cooking or the double-stage cooking, and a separate sensor such as an optical sensor is provided. In addition, since the weight sensor for detecting the weight of the food can also be used for detecting the cooking dish, a simple configuration can be achieved.

[0013] If a food weight calculating means is provided (claim 2)
Invention), it is possible to calculate the weight of the food by subtracting the weight of the cooking dish from the weight detected by the weight sensor,
In addition to determining whether the cooking is one-stage cooking or two-stage cooking, heating cooking at a cooking temperature or cooking time according to the weight can be executed.

Further, if the weight of the upper cooking dish is made larger than the specified weight of the food that can be placed on the lower cooking dish (the invention of claim 3), the upper cooking dish is reliably distinguished from the cooking food. And accurate judgment can be made. If the determination reference value of the determination means is set to be larger than the total weight of the upper cooking dish and the lower cooking dish (the invention of claim 4), the determination becomes more reliable.

[0015] In the apparatus having first and second heating means having different heating modes, the first and second heating means are selected based on the judgment of the judging means. Item 5), cooking by heating means suitable for one-stage cooking or two-stage cooking can be performed.

In this case, if the first heating means is constituted by a heater and the second heating means is constituted by a hot air generating device (invention of claim 6), cooking by heater heating or cooking by hot air heating can be selected. can do. At this time, if it is configured that heating by the heater is selected when the cooking is one-stage cooking and heating by the hot air generator is selected when the cooking is two-stage cooking (the invention of claim 7), the single-stage cooking and the two-stage cooking are performed. Cooking can be performed in a heating mode suitable for each.

Furthermore, if the heater is configured to heat the food from above and below (the invention of claim 8), the heater can be heated from above and below the food. Further, if the cooking temperature or the cooking time is changed between the time of the heating cooking by the first heating means and the time of the heating cooking by the second heating means (the invention of claim 9), an appropriate value corresponding to the heating means is obtained. The heating cooking at the cooking temperature or the cooking time can be executed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment in which the present invention is applied to a microwave oven with an oven function will be described with reference to FIGS. First, as shown in FIG. 2, a main body 1 of a microwave oven with an oven function as a heating cooker according to the present embodiment.
Has a rectangular box shape as a whole, and inside thereof, a heating chamber 2 for accommodating food therein is provided with an open front surface. The front opening of the heating chamber 2 is opened and closed by a door (not shown).

At the back of the heating chamber 2, a hot air generator 3 is provided as a heating means. The hot air generator 3 includes a back plate 4 that forms the back of the heating chamber 2.
A hot air heater 6 and a centrifugal hot air fan 7 are disposed in a casing cover 5 provided outside the housing. The hot-air fan 7 is driven to rotate by a rotation shaft 8 a of a fan motor 8 provided outside the casing cover 5. Further, the back plate 4 is formed with a suction port 4a and a discharge port 4b formed of a large number of punching holes.

When the hot air heater 6 and the fan motor 8 are energized, the air in the heating chamber 2 is sucked from the suction port 4a by the rotation of the hot air fan 7, and the hot air heater 6
In a state of being heated through the portion, the circulation supplied from the discharge port 4b into the heating chamber 2 is performed, and thereby, the oven cooking of the food housed in the heating chamber 2 is performed. ing. The inner surface of the casing cover 5 is made of a heat insulating material 9.
And a rotating shaft 8 of the fan motor 8.
A is provided with a self-cooling fan 10.

The side wall of the heating chamber 2 is provided with the heating chamber 2
A temperature sensor 11 composed of a thermistor or the like for detecting the atmospheric temperature in the inside is provided. The ceiling of the heating chamber 2 is covered with a heat insulating material 12, and a lamp 13 for illumination is provided in a recess provided in the ceiling.

A rotary plate 14 as a mounting table is provided at the bottom of the heating chamber 2. This rotating plate 14
Is mounted on the upper end of a drive shaft 16 provided through a heat shield plate 15 forming the bottom of the heating chamber 2.
Is connected to a rotary dish driving motor 17 and also to a well-known weight sensor 18. Thus, at the time of range cooking, a rotating plate (not shown) removably mounted on the rotating plate 14 is rotated by the driving of the rotating plate driving motor 17. Further, the weight of the utensil and the food placed on the rotating plate 14 is detected by the weight sensor 18.

On the other hand, although not shown, a machine room is provided in the main body 1 on the right side of the heating chamber 2. In this machine room, a microwave is supplied into the heating chamber 2. Control device 19 comprising a magnetron and its drive circuit, a cooling fan, a microcomputer, and the like for performing microwave cooking
(See FIG. 3). Further, on the front surface of the main body 1, an operation panel 20 as shown in FIG. 4 is provided. The operation panel 20 is provided with a dial 21 for the user to select a cooking menu and to instruct the start of cooking, a menu display section 22 for displaying the cooking menu, and a display for displaying time and the like. A vessel 23 and the like are provided.

Here, FIG. 3 shows an electrical configuration of a main part,
Signals from the dial 21, the weight sensor 18, and the temperature sensor 11 are input to the control device 19, and the menu display unit 22 and the display 23 are driven by the control device 19. It has become so. The hot air heater 6 and the fan motor 8
The power supply lines 24 are connected in parallel via a relay switch 25, and are controlled by the control device 19 turning the relay switch 25 on and off.

A main door switch 26 that operates by opening and closing the door is inserted into the power supply line 24, and a signal from a sub door switch 27 is input to the control device 19. I have. The power supply of the control device 19
The power is supplied from the power lines 24, 24 via a power transformer 28.

When performing oven cooking of confectionery bread, cookies, cream puffs and the like, the rotating plate 14 is used.
On the upper side, a lower cooking dish 29 and an upper cooking dish 30 on which the food is placed are detachably supported in place of the rotating dish. As shown in FIG.
9 is placed directly on the rotating plate 14 and set, and the upper cooking dish 30 is
By being placed on the upper side via the leg portion 30a, it is set above the lower cooking dish 29. In this case, when the amount of the food is small, single-stage cooking using only the lower cooking dish 29 is performed, and when the amount of the food is large, both the lower cooking dish 29 and the upper cooking dish 30 are used. The two-stage cooking is performed.

At this time, as will be described in detail in the following flow chart, the control device 19 selects the execution of the cooking menu of the oven cooking by the dial 21 of the operation panel 20 due to its software configuration. At this time, it is determined whether the cooking is one-stage cooking or two-stage cooking based on the weight detected by the weight sensor 18, and further, the weight of the food is calculated, and the hot air generation device is set so that the cooking temperature and the cooking time according to them are obtained. 3 is controlled.

Therefore, the control device 19 functions as the determination means, the control means, and the food weight calculation means according to the present invention. In this embodiment, as shown in FIG.
The weight of the lower cooking dish 29 and the upper cooking dish 30 are both 600.
g, and the weight of the food for oven cooking that can be placed on one cooking dish, that is, the prescribed weight, is 400 g at the maximum.
Is set to Therefore, the weight of the upper cooking dish 30 (6
00g) is larger than the prescribed weight (400 g) of the food that can be placed on the lower cooking dish 29.

Next, the operation of the above configuration will be described with reference to FIG. Now, for example, when the user wants to perform oven cooking of a cookie, the user places the cooked food (cookie dough) side by side on a cooking dish and sets it in the heating chamber 2.
At this time, when the amount of the food is large, both the lower cooking dish 29 and the upper cooking dish 30 are used, and when the food is small, only the lower cooking dish 29 is used. Next, in this state, the user operates the dial 21 of the operation panel 20 to select the cooking menu of "cookie specialty", and starts cooking. Then, the control device 19 executes the heating cooking according to the procedure shown in the flowchart of FIG.

That is, first, the weight W is detected by the weight sensor 18 in step S1, and the detected weight W is compared with a determination reference value in the next step S2. In this case, the determination reference value is 1.3 kg, which is larger than the total weight (1.2 kg) of the lower cooking dish 29 and the upper cooking dish 30.
Is set to

Here, in the case of single-stage cooking, the weight acting on the weight sensor 18 is the weight of the lower-stage cooking dish 29 plus the weight of the food placed on the lower-stage cooking dish 29. It is about 1.0 kg. On the other hand, in the case of two-stage cooking, the weight acting on the weight sensor 18 is the weight of both the lower cooking plate 29 and the upper cooking plate 30 plus the weight of the food placed on both.
There should be 5kg. Therefore, if the detected weight W is less than the judgment reference value of 1.3 kg (N in step S2)
o), it can be determined that the cooking is one-stage cooking, and if it is 1.3 kg or more (Yes in step S2), it can be determined that the cooking is two-stage cooking.

When it is determined that the cooking is one-stage cooking,
In step S3, the standard cooking temperature T0 is set to 155 ° C., and the standard cooking time t0 is set to 25 minutes. On the other hand, if it is determined that the cooking is two-stage cooking, the standard cooking temperature T0 is set to 160 ° C. in step S4.
The standard cooking time t0 is set to 27 minutes, which is longer than the case of the single-stage cooking.

Further, in the present embodiment, in steps S5 and S6, the standard cooking temperature T0 and the standard cooking time t0 are corrected based on the weight of the food in both single-stage cooking and double-stage cooking. The cooking temperature T and the cooking time t are determined. The formula for calculating the cooking temperature T and the cooking time t is as shown in the figure. If the weight of the food is larger than the standard weight (200 g and 400 g), the cooking temperature T and the cooking time t are set accordingly. This is performed by increasing the standard cooking temperature T0 and the standard cooking time t0, and if the weight is smaller than the standard weight, reducing it accordingly.

Thus, the cooking temperature T and the cooking time t
Is determined, heating cooking is executed (step S
7). This heating cooking is performed by controlling the hot air generator 3 based on the temperature detected by the temperature sensor 11 so that the internal temperature is maintained at the cooking temperature T. Cooking time t
Has elapsed (Yes in step S8), the heating and cooking is terminated. At this time, since the optimum cooking temperature T and cooking time t according to the number of cooking plates and the weight of the food are determined by the processing of steps S1 to S6, extremely good cooking in a completed state is performed. It is done.

As described above, according to the present embodiment, the lower cooking dish 29 and the upper cooking dish 30 are supported on the rotating plate 14 and set in the heating chamber 2.
It is possible to automatically determine, so to speak, single-stage cooking or two-stage cooking based on the detected weight of, and it is possible to perform heating cooking according to the number of stages of the cooking dish.

Therefore, it is not necessary for the user to perform the selection operation between the one-stage cooking and the two-stage cooking using the operation panel 20 as in the prior art, and the number of menus on the operation panel 20 can be reduced, and the operation of the user can be reduced. It can be done easily. Also, unlike a conventional sensor provided with a separate sensor such as an optical sensor, the weight sensor 18 originally provided for detecting the weight of the food can be used also for detecting the cooking dish. Therefore, a simple and inexpensive configuration can be achieved.

Further, in this embodiment, the cooking temperature T according to the weight of the food is determined in addition to the determination of the single-stage cooking or the two-stage cooking.
And heating cooking for cooking time t is executed,
It is possible to perform more excellent cooking according to the amount of the food. Further, in the present embodiment, the weight of the upper cooking dish 30 is configured to be larger than the specified weight of the food that can be placed on the lower cooking dish 29, and the determination reference value is set between the upper cooking dish 30 and the lower cooking dish 29. Because I set it larger than the total weight,
It is possible to reliably determine whether the cooking is one-stage cooking or two-stage cooking.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and only different points will be described below.

As shown in FIGS. 7 and 8, in this embodiment, a reflection recess 31 a formed in the ceiling 31 of the heating chamber 2 is provided.
An upper heater 32 made of a Milacron heater is provided therein, and a lower heater 34 made of a flat heater is provided on the lower surface of the bottom plate 33 of the heating chamber 2. With this,
The upper heater 32 and the lower heater 34 constitute a first heating unit, and the hot air generator 3 provided on the back of the heating chamber 2 has a heating mode different from that of the upper heater 32 and the lower heater 34. This constitutes the second heating means.

In this embodiment, the control device 1
9 performs an automatic determination of one-stage cooking or two-stage cooking based on the detected weight W of the weight sensor 18 during execution of oven cooking, and in the case of one-stage cooking, heating cooking by the upper heater 32 and the lower heater 34 is performed. Is performed, and in the case of two-stage cooking, heating cooking by the hot air generator 3 is executed. Further, the upper heater 32 and the lower heater 34
Is controlled so that the cooking temperature T and the cooking time t are different from each other during the heating cooking by the hot air generator 3 and during the heating cooking by the hot air generator 3.

That is, as shown in FIG. 6, when the oven cooking is started, the weight sensor 18 is set in step S11.
The detected weight W is compared with a determination reference value (1.3 kg) in step S12,
If it is less than 1.3 kg (No in step S12),
If it is determined that the cooking is one-stage cooking and the weight is 1.3 kg or more (Yes in step S12), it is determined that the cooking is two-stage cooking. If it is determined that the cooking is one-stage cooking, the heating mode of the upper and lower heating method by the upper heater 32 and the lower heater 34 is selected in step S13. On the other hand, if it is determined that the cooking is two-stage cooking, the process proceeds to step S14. The heating mode of the hot air circulation system by the hot air generation device 3 is selected.

Further, in the case of one-stage cooking (heating by the upper heater 32 and the lower heater 34), step S15
, The cooking temperature T is set to 170 ° C. and the cooking time t is set to 25 minutes. In the case of two-stage cooking (heating by the hot air generator 3), in step S16, the cooking temperature T is set to 180 ° C. t is set to 30 minutes. As a result, the optimum cooking temperature T and cooking time t according to the difference in the heating mode are set, and it is possible to prevent burning of the food due to the heating of the heater that is stronger than hot air. Thereafter, heating cooking by each method (see FIGS. 7 and 8) is performed such that the temperature in the refrigerator is maintained at the cooking temperature T (step S1).
7) When the cooking time t elapses (Y in step S18)
es), the heating cooking ends.

Here, according to the heater heating from above and below,
The food is baked savoryly with a savory brown color. If this is also adopted for the two-stage cooking, the food is cooked on the upper surface side of the lower cooking plate 29 and the lower surface side of the upper cooking plate 30. Heating is not sufficient, and uneven baking occurs. On the other hand, according to the present embodiment, the heating mode is changed between the one-stage cooking and the two-stage cooking, so that in the case of the one-stage cooking, the food is heated from above and below and baked moistly. In the case of two-stage cooking, the food is uniformly baked by the circulating hot air.

In each of the above-described embodiments, the cooking temperature T and the cooking time t are made different between the single-stage cooking and the two-stage cooking. It may be performed. In the second embodiment, the control of the cooking temperature or the cooking time based on the weight of the food is not performed. However, the control based on the weight of the food may be added. Even if the control of the cooking temperature or the cooking time based on the weight of the food (Steps S5 and S6) is not performed, the intended purpose can be achieved.

In addition, the present invention is not limited to the above-described embodiments, but can be implemented with appropriate modifications without departing from the scope of the invention.

[0046]

As is apparent from the above description, according to the heating cooker of the present invention, the cooking dishes can be arranged in two upper and lower stages, and the lower cooking dish and the upper cooking dish are weight sensors. And a determination means for determining whether the cooking is one-stage cooking or two-stage cooking based on the weight detected by the weight sensor, so that the one-stage cooking and the two-stage cooking can be reliably performed. This makes it possible to execute the cooking suitable for each of them automatically, and at the same time, it is possible to perform the cooking with an inexpensive configuration.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is a flowchart showing a procedure of a process of a control device at the time of oven cooking.

FIG. 2 is a longitudinal sectional side view of a heating cooker main body.

FIG. 3 is a diagram showing an electrical configuration of a main part.

FIG. 4 is a front view of an operation panel.

FIG. 5 is a diagram showing a weight relationship between a cooking dish and a cooked food;

FIG. 6 is a view corresponding to FIG. 1, showing a second embodiment of the present invention;

FIG. 7 is a vertical side view showing a state of single-stage cooking.

FIG. 8 is a vertical side view showing a state of two-stage cooking.

[Explanation of symbols]

In the drawings, 1 is a main body, 2 is a heating chamber, 3 is a hot air generating device (second heating means), 11 is a temperature sensor, 14 is a rotating plate (mounting table), 18 is a weight sensor, and 19 is a control device (judgment). Means, control means, food weight calculating means), 29 denotes a lower cooking dish, 30 denotes an upper cooking dish, 32 denotes an upper heater (first heating means), and 34 denotes a lower heater (first heating means).

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-203155 (JP, A) JP-A-5-79635 (JP, A) JP-A-6-174238 (JP, A) 86805 (JP, U) Shokai Sho 56-140014 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24C 7/02 315 F24C 15/16

Claims (9)

(57) [Claims] 1. A heating chamber, heating means for heating the food contained in the heating chamber, a mounting table provided at the bottom of the heating chamber, and a cooking object removably supported on the mounting table. A lower cooking dish on which the food is placed, an upper cooking dish which is removably supported on the mounting table above the lower cooking dish, and on which the food is mounted, and a mounting article supported by the mounting table And a weight sensor for detecting the weight of the first and second stages, based on the weight detected by the weight sensor, and determining whether the single-stage cooking using only the lower cooking plate or the two-stage cooking using both the lower and upper cooking plates is performed. A cooking device comprising: a judging means for performing the heating; and a control means for controlling the heating means based on the judgment of the judging means. 2. A food weight calculating means for calculating the weight of the food based on the determination by the determining means and the detected weight of the weight sensor, and the control means controls the calculated weight of the food weight calculating means. The cooking device according to claim 1, wherein the cooking device is configured to control at least one of a cooking temperature and a cooking time based on the cooking temperature. 3. The heating cooker according to claim 1, wherein the weight of the upper cooking dish is larger than a specified weight of the food that can be placed on the lower cooking dish. 4. The determining means comprises: a weight detected by a weight sensor;
2. The method according to claim 1, wherein a comparison is made between a total weight of the upper cooking dish and a lower cooking dish with a determination reference value that is set to be larger than the total weight of the upper cooking dish and the lower cooking dish. 3. A cooking device according to any one of claims 1 to 3. 5. A control device comprising: first and second heating means having different heating modes; and a control means configured to select the first and second heating means based on a determination by the determination means. The cooking device according to any one of claims 1 to 4, wherein: 6. The first heating means comprises a heater, and the second heating means comprises a heater.
6. The cooking device according to claim 5, wherein the heating means comprises a hot air generator. 7. The control means is configured to select heating by a heater when the determination by the determination means is one-stage cooking, and to select heating by a hot air generation device when the determination is two-stage cooking. The heating cooker according to claim 6, wherein 8. The cooking device according to claim 6, wherein the heater is configured to heat the food from above and below. 9. The control means performs control such that at least one of the cooking temperature and the cooking time differs between the time of heating cooking by the first heating means and the time of heating cooking by the second heating means. The cooking device according to any one of claims 5 to 8, wherein the cooking device is configured to perform the cooking.