JP4239681B2 - Cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooking device adapted to perform various cooking such as grilled food and steamed food.
[0002]
[Prior art]
Conventionally, a high frequency, an electric heater, steam, or the like has been used as a heating means for cooking an object to be heated stored in a heating chamber, which is included in this type of cooking device.
[0003]
Among the heating cookers, one that uses superheated steam having a normal pressure and a temperature as high as 100 ° C. or higher, for example, 300 ° C., as one of the heating means is known (for example, Patent Document 1). reference).
[0004]
FIG. 5 shows a conventional cooking device described in Patent Document 1. A surface heater 3 is attached to the peripheral wall of the heating chamber 2 of the heating cooker body 1 (hereinafter abbreviated as the main body 1) as a wall heating means, and the heating chamber temperature for measuring the temperature in the heating chamber 2 is measured. Measuring means 4 is provided. The main body 1 is provided with superheated steam generating means 5, cooking control means 6 for controlling the superheated steam generating means 5, and a water tank 7. The water in the water tank 7 is converted into superheated steam by the superheated steam generating means 5 from the pump 8 through the water pipe 9. When the superheated steam generated by the superheated steam generation means 5 hits the low-temperature target object, the target object is heated by the latent heat when the steam changes to water.
[0005]
In the cooking device having the above-described conventional configuration, there is no control to move the moisture evaporated from the heated object from the vicinity of the heated object surface when cooking with superheated steam, so the surface is dried and burnt cooking is performed. It is difficult. Further, since each cooking process does not perform the adjustment of the planar heater 3 and superheated steam generating unit 5, to perform the heating was depending on the object to be heated changes has been difficult.
[0006]
[Patent Document 1]
Japanese Unexamined Patent Publication No. 2000-184964 (see page 3-5, FIG. 1)
[0007]
[Problems to be solved by the invention]
In view of the above-mentioned conventional technical problems, the problem to be solved by the present invention is that the type and change of the object to be heated, the heating means for the object to be heated according to the cooking method, the input steam amount and steam of the object to be heated An object of the present invention is to provide a heating cooker that is simple and has high heating efficiency by variably controlling conditions that affect cooking such as temperature, wind speed and air volume.
[0008]
[Means for Solving the Problems]
In order to solve the above-described conventional problems, a heating cooker according to the present invention includes a heating chamber for storing a heated object, heating for heating the heated object, a gas in the heating chamber, and a peripheral wall of the heating chamber. Heating means for the room, steam generating means for generating steam to be supplied into the heating chamber, a steam outlet for blowing the steam into the heating chamber, and an air flow for generating an air flow by air or steam in the heating chamber Generating means, a discharge port for discharging air and steam in the heating chamber, heating means for the heating chamber, control means for controlling the steam generating means and the airflow generating means, and heating conditions of the control means And an operation means for inputting a cooking process, and the control means is configured to specify a part to be heated when the size of the object to be heated is small based on the information of the cooking process input from the operation means. Place to heat intensively Wherein it was decided that can steam outlet benzalkonium raise the wind blowing to reduce the opening area of the.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Since the object of the present invention can be achieved by configuring the configuration described in each claim as an embodiment, the operation of the configuration will be described together with the configuration of each claim below. Of these, specific terms that require explanation will be described in detail with reference to the embodiment of the present invention with detailed explanation.
[0010]
The present invention includes a heating chamber for storing an object to be heated, heating means for a heating chamber for heating the object to be heated, gas in the heating chamber, and a peripheral wall of the heating chamber, and steam supplied to the heating chamber. Steam generating means for generating, steam outlet for blowing the steam into the heating chamber, airflow generating means for generating an airflow by air or steam in the heating chamber, and exhausting air or steam in the heating chamber And a control means for controlling the heating means for the heating chamber, the steam generating means and the air flow generating means, and an operating means having an operating portion for inputting heating conditions and cooking steps of the control means. The control means includes the steam blower when the size of the object to be heated is small or when the specific part of the object to be heated is intensively heated based on the cooking process information input from the operation means. The opening area of the exit By the Ruco raise the blowing wind speed and fence, can be a good cooking efficiency corresponds to the heat transfer characteristics and the size of the object to be heated.
[0011]
Also generates a heating chamber for accommodating an object to be heated, said heating chamber heating means for heating the peripheral wall of the object to be heated and the gas in the heating chamber and the heating chamber, the steam supplied to the heating chamber A steam generating means, a steam outlet for blowing the steam into the heating chamber, an airflow generating means for generating an airflow by air or steam in the heating chamber, and for discharging air or steam in the heating chamber A control means for controlling the discharge port, the heating means for the heating chamber, the steam generation means and the airflow generation means, and an operation means having an operation part for inputting heating conditions and cooking process of the control means. The control means controls the steam generating means to increase the amount of steam blown from the steam outlet when the size of the object to be heated is large based on the cooking process information input from the operation means. System By, it is possible to perform cooking in accordance with the size of the object to be heated.
[0012]
Further , by providing the water storage means, the water supply means, and the water heating means for heating the supplied water, the steam can be continuously put into the heating chamber.
[0013]
In addition , by controlling the water supply amount of the water supply means based on the input information to the operation means , the user can cook while grasping the amount of input steam.
[0014]
Further , by controlling the outputs of the heating chamber heating means and the water heating means based on the input information of the operating means, it is possible to select a heating means suitable for the cooking process and efficiently heat with less energy. it can.
[0015]
Further , by controlling the output of the airflow generation means based on the input information of the operation means, the wind speed and the air volume of the airflow in the heating chamber can be varied corresponding to the cooking process.
[0016]
Further , by changing the opening area of the steam outlet based on the input information of the operation means, it is possible to efficiently heat with less energy.
[0017]
In addition , a cooking process is performed by variably controlling the amount of water supplied by the water supply means and the output of the water heating means based on the detection signal of the heating chamber temperature detection means and the input information of the operation means, while heating the object to be heated. Different heating controls can be selected.
[0018]
【Example】
Hereinafter, embodiments showing specific configuration examples of the present invention will be described with reference to the drawings.
[0019]
Example 1
1 is a front sectional view of a heating cooker according to a first embodiment of the present invention, FIG. 2 is a side sectional view, FIG. 3 is a schematic view showing an appearance, and FIG. 4 is a control block diagram of a main part. In FIGS. 1, 2, 3, and 4, 11 is a main body of the cooking device of the present invention, 12 is a heating chamber for storing an object to be heated, and 13a and 13b are planes provided on the upper wall surface and the lower wall surface of the heating chamber 12, respectively. Upper and lower peripheral wall heaters 14a and 14b constituted by heaters are pipe heaters provided above and below the inner wall surface of the heating chamber 12, for example, an inner peripheral wall heater constituted by a miraclon heater, and an upper and lower peripheral wall heater 13a. 13b and the inner peripheral wall heaters 14a and 14b constitute a heating means for the heating chamber. Reference numeral 15 denotes airflow generating means for generating an airflow in the heating chamber 12.
[0020]
The upper and lower peripheral wall heaters heat the air in the heating chamber 12 and the object to be heated by radiant heat from the wall surface through the wall surface of the heating chamber 12. The inner peripheral wall heater heats the air circulated by the radiant heat from the wall surface through the inner wall surface of the heating chamber 12 and the airflow generation means 15 to increase the temperature in the heating chamber 12 or to heat the object to be heated. is there.
[0021]
A pair of upper and lower peripheral wall heaters are provided on the upper and lower walls of the heating chamber 12 in order to prevent uneven heating at the upper and lower portions of the heating chamber 12, respectively. In the following description of the present embodiment, the upper and lower peripheral wall heaters are described as the upper and lower heating means 13, and the rear peripheral wall heater is described as the rear heating means 14. In this embodiment, the back heating means 14 is a pair of two heaters, but this is not restrictive. Further, if the heating chamber 12 has sufficient heating capability, it is not always necessary to dispose the back heating means 14.
[0022]
Reference numeral 16 denotes steam generating means for generating steam to be introduced into the heating chamber 12. 17 is a water storage means, 18 is a water supply means communicating with the water storage means 17, 19 is a water heating means for heating the water supplied from the water supply means 18, and the steam generating means 16 is a water storage means 17, a water supply means 18, water heating. Consists of means 19. Reference numeral 20 denotes a water temperature detection means for detecting the water temperature of the water storage means 17. The water storage means 17 can be provided with a heating means for heating water.
[0023]
21 is a steam guide, and 22a, 22b, 22c and 22d are steam outlets, respectively. Although not shown, the steam outlets 22a, 22b, 22c, and 22d have a configuration in which the opening area can be varied. The steam generated by the steam generating means 16 is blown out to the heating chamber 12 from the steam outlets 22a, 22b, 22c, 22d through the steam guide 21. Reference numeral 23 denotes a discharge port for discharging air or steam from the heating chamber 12 to the outside. Reference numeral 24 denotes an air outlet through which the air flow generating means 15 blows air taken from the heating chamber 12 to the heating chamber 12, 25 denotes a heating chamber temperature detecting means for detecting the temperature in the heating chamber 12, and 26 denotes the heating chamber 12. It is a steam outlet temperature detecting means for detecting the temperature of the steam to be introduced. Reference numeral 27 denotes an operation unit of the heating cooker, on which a display unit 28 and a plurality of operation units 29 are arranged.
[0024]
As shown in FIG. 4, reference numeral 30 denotes a storage unit that stores input information from the cooking process and the operation unit 27 for a certain period of time or permanently. Reference numeral 31 denotes a control means, which is a reference for determining various control conditions stored in the storage means 30 based on input information of the operation means 27 and detection signals from the heating chamber temperature detection means 25 and the steam outlet temperature detection means 26. The vertical heating means 13, the back heating means 14, the airflow generating means 15, and the steam generating means 16 are controlled on the basis of the determination result.
[0025]
Next, the operation of the cooking device having the above configuration will be described.
[0026]
When cooking the object to be heated, the user determines the heating conditions and inputs the cooking process, the heating time, the heating temperature, and the like from the operation unit 29 of the operation means 27. When the heating condition is input, the control means 31 sends the input cooking process, heating time, and information about the heating temperature to the storage means 30 for storage. Further, based on input information such as heating conditions and cooking processes, the control means 31 selects a control pattern corresponding to each cooking process from the storage means 30. Input information such as the heating conditions and cooking process selected and input by the user and the progress status of the cooking process, that is, the amount of input steam, temperature, cooking heating elapsed time, and the like are displayed on the display unit 28. The user can grasp the progress of cooking with the display unit 28. Heating is started when the control means 31 receives an input of a heating start signal from the operation means 27. If cancellation of heating is selected prior to the heating start signal, the storage means 30 returns to the initial setting.
[0027]
Next, the control means 31 determines the presence or absence of the preheating process of the heating chamber 12. The presence or absence of preheating may be selected and determined by the user, or the control means 31 may be selected and determined by an automatic cooking process stored in the storage means 30 in advance.
[0028]
When it is determined that there is preheating, the control means 31 energizes the vertical heating means 13 and the back heating means 14 until the heating chamber 12 reaches the set temperature. When the detection signal of the heating chamber temperature detection means 25 is sent to the control means 31 and the control means 31 determines that the temperature of the heating chamber 12 has reached the set temperature, the control means 31 uses that the set temperature has been reached. Inform the person. Any means such as a buzzer, a lamp, or a display on the display unit 28 may be used as the notification means.
[0029]
When the user places the object to be heated in the heating chamber 12 and closes the door, and transmits a heating start signal to the control means 31 again, the control means 31 includes the vertical heating means 13, the back heating means 14, and the airflow generation means 15. The operation of the steam generating means 16, the heating chamber temperature detecting means 25, and the steam outlet temperature detecting means 26 is started. The airflow generation means 15 and the steam generation means 16 may be operated continuously during preheating. The control means 31 starts measuring cooking time after receiving the heating start signal again, and proceeds to the cooking process.
[0030]
On the other hand, if it is determined that there is no preheating, when the user places the object to be heated in the heating chamber 12 and closes the door, and inputs the cooking process, heating time, heating temperature, etc. from the operation unit 29 of the operation means 27, The control means 31 starts the operations of the vertical heating means 13, the back heating means 14, the airflow generation means 15, the steam generation means 16, the heating chamber temperature detection means 25, and the steam outlet temperature detection means 26. When the temperature of the heating chamber 12 reaches the set temperature, the control means 31 starts measuring cooking time and proceeds to the cooking process.
[0031]
If it transfers to a cooking process, the to-be-heated material accommodated in the heating chamber 12 will be heated by the up-and-down heating means 13, the back heating means 14, and input steam. When the set temperature is high, the control means 31 increases the input amounts of the upper and lower heating means 13, the back heating means 14, and the water heating means 19. When the temperature of the heating chamber 12 reaches the set temperature, the control means 31 controls the opening area of the steam generation means 16 and the steam outlet 22, and depends on the amount of steam to be introduced into the heating chamber 12, the steam temperature, and the airflow generation means 15. Variable wind speed and volume.
[0032]
When the steam is introduced into the heating chamber 12, the water supply means 18 supplies the water stored in the water storage means 17 to the water heating means 19. Steam generated by heating by the water heating means 19 passes through the steam outlet 22 and is blown out to the heating chamber 12. By providing the water storage means 17, steam can be continuously fed into the heating chamber 12.
[0033]
When the wind speed and the air volume in the heating chamber 12 are varied, the operating speed of the airflow generating means 15 is controlled. However, when the size of the object to be heated is small or when a specific part of the object to be heated is to be heated intensively, the operating speed of the air flow generating means 15 is made constant and the opening area of the steam outlet 22 is reduced. By increasing the wind speed, firing can be performed efficiently even if the amount of input energy is small. If the object to be heated is large, cook it while increasing the air volume.
[0034]
Steam condenses on the surface of the object to be heated at a temperature lower than its own temperature, and has the property of giving condensation heat to the object to be heated. Since the condensation heat is larger than the conduction heat from the air, the heating rate of the object to be heated is fast. The input steam may be saturated steam or superheated steam exhibiting a high temperature of 100 ° C. or higher at normal pressure.
[0035]
The control means 31 takes in detection signals from the water temperature detection means 20, the heating chamber temperature detection means 25, and the steam outlet temperature detection means 26 at regular intervals during the cooking process, and causes the storage means 30 to store these detection signals for a predetermined time. . The control means 31 compares the selected heating setting condition and cooking process with the detection signal stored in the storage means 30 and the elapsed time after the start of cooking, and estimates the progress of cooking and changes in the object to be heated. Thus, the respective heating means and steam generating means 16 are controlled so as to correspond to the states of the heating chamber 12 and the object to be heated. For example, since the volume of water of the same weight increases as the ambient temperature increases, the amount of input steam is reduced as the ambient temperature increases to fill the heating chamber 12 with steam. By performing such control, cooking can be performed efficiently.
[0036]
When the input steam amount is increased, the water supply means 18 increases the water supply amount and increases the input of the water heating means 19. When reducing the amount of steam input, reduce the amount of water delivered. When the steam temperature is lowered, the input is decreased, and when the steam temperature is increased, the amount of water supplied is decreased and the input of the water heating means 19 is increased.
[0037]
When the process of condensing steam into the object to be heated is passed to the drying / firing process, moisture evaporates from the object to be heated. In order to promote drying and the generation of scorching on the surface, it is necessary to exchange the high-humidity air layer and the low-humidity air layer near the surface of the object to be heated. Control. Since the vicinity of the surface is low-humidity air, the evaporation rate from the object to be heated can be increased.
[0038]
When the amount of steam input to the heating chamber 12 and the amount of evaporation from the object to be heated increase, the air in the heating chamber 12 becomes high humidity and the internal pressure increases. Since it becomes high-humidity air, the moisture evaporated from the object to be heated cannot be contained in the air in the heating chamber 12, and a phenomenon such as a decrease in evaporation rate occurs. Therefore, it is necessary to exhaust high humidity air from the heating chamber 12. The air in the heating chamber 12 is discharged from the discharge port 23 to the outside. The outlet 23 is provided with a valve (not shown), and opens and closes the valve in conjunction with the airflow generation means 15. Note that the valve of the discharge port 23 may be opened and closed by an operation input from the operation unit, or may be always open. The control means 31 determines that the cooking process has ended when a predetermined time has elapsed, and notifies the end of heating.
[0039]
Next, the amount of steam input during preheating and heating will be described.
[0040]
During preheating, a small amount of steam at a temperature lower than that of the heating chamber 12 is continuously charged, and the upper and lower heating means 13 and the inner heating means 14 are energized at the same time, or after a certain time has elapsed or when the heating chamber 12 reaches a predetermined temperature. Select a method such as
[0041]
On the other hand, at the initial stage of the cooking process, the amount of steam is increased in order to give much heat of condensation to the object to be heated. In the middle of the cooking process, the input steam amount is reduced from the beginning of the cooking process after a certain time has elapsed or when the heated object reaches a certain temperature or higher. In the latter part of the cooking process, the steam is stopped or steam that is less than or equal to the amount used in the middle of the cooking process is introduced. When increasing the amount of steam, control is performed to make the input to the water heating means 19 larger than usual.
[0042]
In order to prevent the user from getting burned, etc., a door detection means is provided for detecting the door opening state so that the user cannot open or close the door when the steam is turned on, and the steam generation means while the door is open. The operation of 16 may be stopped.
[0043]
Further, means for directly measuring the temperature of the object to be heated, such as an infrared sensor, may be provided in the heating chamber 12, and the cooking process may be switched or the heating end control may be performed based on the temperature of the object to be heated. In addition, when water is stored in the water storage means 17, the water may be removed from the main body 11, or the water may be directly connected to water supply means such as a water supply. Although not shown in the present embodiment, it is also possible to use a material having a heat insulating effect as a constituent material in order to prevent heat from escaping to the outside around the heating chamber 12.
[0044]
In addition to the upper and lower heating means 13, a heating means using high frequency or electromagnetic induction can be used in combination.
[0045]
(Example 2)
Next, a second embodiment of the present invention will be described.
[0046]
The upper and lower heating means 13 and the steam generating means 16 perform cooking by combining two conditions in which at least one of them is variable during the cooking process. For example, cooking pottery or the like needs to be burnt or colored, so that the water is efficiently evaporated and the heating temperature is set high in order to color the baking and the airflow in the heating chamber 12 is also accelerated. On the other hand, steamed cooking sets a lower temperature than grilled food cooking, and weakens the airflow to prevent drying.
[0047]
Next, the relationship between the detection signals of the heating chamber temperature detection means 25 and the steam outlet temperature detection means 26 and the steam control will be described.
[0048]
The condition that the detection temperature of the heating chamber temperature detection means 25 is higher than the detection temperature of the steam outlet temperature detection means 26 is used mainly for cooking steamed foods by increasing the amount of input steam.
[0049]
When the detection temperature of the heating chamber temperature detection means 25 is lower than the detection temperature of the steam outlet temperature detection means 26 and the detection temperature of the heating chamber temperature detection means 25 is 100 ° C. or higher, mainly during preheating and cooking of the pottery Set the conditions such as
[0050]
When the detection temperature of the heating chamber temperature detection means 25 is the same as the detection temperature of the steam outlet temperature detection means 26 and the steam temperature is around 100 ° C. to 120 ° C., it can be used for steamed cooking. On the other hand, when the steam temperature is 130 ° C. or higher, it is used for cooking pottery. At the same time, heating can be performed while varying the amount of steam.
[0051]
In the present embodiment, when steamed food is cooked early in the cooking process, such as gyoza and hamburger, and baked cooking is performed later in the cooking process, the amount of steam at a temperature of about 100 ° C. is increased at the initial stage of the cooking process. After that, in the latter stage of the cooking process, the inputs of the up-and-down heating means 13 and the water heating means 19 are increased, and high-temperature steam is inputted at the same time to bake while drying the surface.
[0052]
【The invention's effect】
As described above, according to the heating cooker of the present invention, cooking is efficiently performed by variably controlling the heating means, the amount of input steam, the wind speed of the airflow, and the like according to the type of the object to be heated and the changing cooking method. be able to.
[Brief description of the drawings]
FIG. 1 is a front cross-sectional view of a heating cooker in Embodiment 1 of the present invention. FIG. 2 is a side cross-sectional view of the heating cooker. FIG. 3 is an external view of the heating cooker. Control block diagram of the main part [Fig. 5] Schematic diagram of a conventional heating cooker [Explanation of symbols]
12 Heating chamber 13 Vertical heating means (heating means for heating chamber)
14 Back heating means (heating means for heating chamber)
DESCRIPTION OF SYMBOLS 15 Airflow generation means 16 Steam generation means 17 Water storage means 18 Water supply means 19 Water heating means 22a, 22b, 22c, 22d Steam outlet 23 Outlet 25 Heating chamber temperature detection means 26 Steam outlet temperature detection means 27 Operation means 31 Control means

Claims (2)

A heating chamber for storing an object to be heated, heating means for a heating chamber for heating the object to be heated, gas in the heating chamber, and a peripheral wall of the heating chamber, and steam generation for generating steam to be supplied to the heating chamber Means, a steam outlet for blowing the steam into the heating chamber, an airflow generating means for generating an airflow due to air or steam in the heating chamber, and an outlet for discharging air or steam in the heating chamber And heating means for the heating chamber, control means for controlling the steam generation means and the airflow generation means, and an operation means having an operation unit for inputting heating conditions and cooking process of the control means, When the size of the object to be heated is small or when the specific part of the object to be heated is intensively heated based on the information on the cooking process input from the operation means, the control means opens the opening area of the steam outlet To reduce The cooking device according to claim and Turkey to increase the wind speed out.   A heating chamber for storing an object to be heated, heating means for a heating chamber for heating the object to be heated, gas in the heating chamber, and a peripheral wall of the heating chamber, and steam generation for generating steam to be supplied to the heating chamber Means, a steam outlet for blowing the steam into the heating chamber, an airflow generating means for generating an airflow due to air or steam in the heating chamber, and an outlet for discharging air or steam in the heating chamber And heating means for the heating chamber, control means for controlling the steam generation means and the airflow generation means, and an operation means having an operation unit for inputting heating conditions and cooking process of the control means, The control means controls the steam generating means to increase the amount of steam blown from the steam outlet when the size of the object to be heated is large based on the cooking process information input from the operation means. You Cooker, characterized in that.

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