JP4029511B2 - Superheated steam cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a superheated steam cooker that generates superheated steam and injects it into a cabinet to cook an object to be cooked.
[0002]
[Prior art]
Conventionally, home cookers include an oven, a grill, and a microwave oven, and there are cookers in which these are combined. The oven is used to slowly ignite the interior and the grill is used to color the surface. A microwave oven is a microwave heating system that is used to warm food.
[0003]
[Problems to be solved by the invention]
However, each of the above-mentioned cookers has a problem that the heating efficiency is relatively low, and the surface of the food dries out when it is heated and the taste is impaired.
[0004]
The present invention solves the problems of such a conventional household cooking device, and realizes a cooking device that performs cooking with high efficiency and does not impair a moist texture. It is aimed.
[0005]
[Means for Solving the Problems]
To achieve the above object, the superheated steam cooker of the present invention includes a heating chamber for heating an object to be cooked therein, a door for putting food in the heating chamber, and a wall for heating the wall of the heating chamber. A heating means, a heating chamber temperature measuring means for measuring the temperature inside the heating cabinet, a chamber temperature display means for displaying the temperature in the heating cabinet, a heating cabinet wall temperature measuring means for measuring the temperature of the heating cabinet wall, It comprises superheated steam generating means for generating superheated steam and injecting it into a heating chamber, and cooking control means for controlling the superheated steam generating means. The superheated steam generating means comprises heating means for heating water and steam, an inverter circuit, water A flow rate control means for controlling the flow rate of the gas, a power control means for controlling the power of the heating means, and a superheated steam temperature measurement means for measuring the temperature of the generated steam. When the generated steam temperature is high, the power control means With increasing power It is the overheat steam cooker to reduce the flow rate of the water by the flow control means.
[0006]
And the said structure can implement | achieve the cooker which can perform cooking by superheated steam with good thermal efficiency easily.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a heating chamber for heating the food to be cooked therein, a door for putting food in the heating chamber, a wall heating means for heating the wall of the heating chamber, Heating chamber temperature measuring means for measuring the temperature, chamber temperature display means for displaying the temperature in the heating chamber, heating chamber wall temperature measuring means for measuring the temperature of the heating chamber wall, and generating superheated steam in the heating chamber A superheated steam generating means for injecting; and a cooking control means for controlling the superheated steam generating means, wherein the superheated steam generating means controls a heating means for heating water and steam, an inverter circuit, and a flow rate of water. A flow control means for controlling, a power control means for controlling the power of the heating means, and a superheated steam temperature measuring means for measuring the temperature of the generated steam, and when the generated steam temperature is high, the power control means increases the amount of power. Along with the flow control means The one that the overheat steam cooker to the small flow rate, but can realize cooker easily perform cooking by good superheated steam thermal efficiency.
[0008]
The invention according to claim 2 is configured such that the heating chamber wall is made of a magnetic metal, a coil is wound around the heating chamber wall, an inverter circuit for wall heating is provided, and the heating chamber wall itself generates heat by induction heating as a wall heating means. The superheated steam cooker according to claim 1 can be realized, and a superheated steam cooker with an increased degree of freedom in the design of the heating cabinet can be realized.
[0009]
The invention according to claim 3 is the superheated steam cooker according to claim 2, wherein the inverter circuit of the superheated steam generating means is also used as the wall heating inverter circuit. Can realize a superheated steam cooker.
[0010]
The invention according to claim 4 is provided with a heat insulating material for suppressing the heat radiation of the heating chamber around the heating chamber, and the wall heating by the wall heating means is completed within a predetermined time from the start of the operation, and overheated steam is mainly generated during cooking. The superheated steam cooker according to claim 1, wherein electric power is used by the means, and the superheated steam cooker capable of suppressing the power required for heating the heating chamber wall and cooking at high power can be realized.
[0011]
A fifth aspect of the present invention is the superheated steam cooker according to the first aspect, comprising a door lock means, and configured to lock the door of the heating cabinet when the steam temperature by the superheated steam temperature measuring means is equal to or higher than a predetermined temperature. Therefore, a highly safe superheated steam cooker can be realized.
[0012]
The invention described in claim 6 includes cooking mode display means, and displays the grilled cooking mode when the temperature inside the cooking chamber temperature measuring means is equal to or higher than the predetermined temperature, and displays the steamed cooking mode when the temperature is lower than the predetermined temperature. The superheated steam cooker according to claim 1 can be realized, and an easy-to-use superheated steam cooker can be realized.
[0013]
The invention according to claim 7 includes cooking sequence input means, and the user sets the order and time of the steamed cooking mode and grilled cooking mode, and the cooking control means sets the superheated steam generating means according to the set cooking mode and time. The superheated steam cooker according to claim 1, which is configured to be controlled, can realize a superheated steam cooker that can perform user's favorite cooking.
[0014]
【Example】
Example 1
The first embodiment of the present invention will be described below. FIG. 1 is a schematic diagram of the superheated steam cooker of the present embodiment. The surfaces of the heating chamber 1 of the overheat steam cooker is surface heaters 3 is a wall heating means is affixed. 2 is a door. The heating chamber 1 is provided with a heating chamber temperature measuring means 4 for measuring the temperature in the chamber, and a heating chamber wall temperature measuring means 5 is provided on the wall surface of the heating chamber 1. Reference numeral 6 denotes superheated steam generating means for generating superheated steam and injecting it into the heating chamber 1, and 7 is cooking control means for controlling the superheated steam generating means 6. FIG. 2 is a cross-sectional view showing the configuration of the superheated steam generating means 6 of this embodiment. 10 is a heating coil and 11 is a foam metal. 14 is a water pipe through which water flows, and 13 is a pump for controlling the flow rate of water. The water controlled by the pump 13 is heated while flowing in the foam metal 11 to become steam, and further heated to become superheated steam. FIG. 3 is a diagram showing a circuit configuration of the present embodiment, in which a heating coil 10 that generates a high-frequency magnetic field and induction-heats the foam metal 11 and an inverter circuit 12 that supplies a high-frequency current to the heating coil 10 are heated together with heating water. Means. Reference numeral 14 denotes power control means for controlling the inverter circuit 12, which is driven together with the pump 13 by the output of the cooking control means 7. Reference numeral 15 denotes a vapor temperature measuring means 15 constituted by a thermistor or the like.
[0015]
The cooking control means 7 and the power control means 14 are constituted by a microcomputer 19 shown in FIG.
[0016]
Next, a specific circuit configuration of the temperature control apparatus of the present embodiment will be described with reference to FIG. The inverter circuit 12 that drives the heating coil 10 includes a rectifier that performs full-wave rectification of an AC power supply, a smoothing capacitor, a current-limiting inductance, a resonant capacitor, a switching element, and the like. The heating coil 10 is connected in parallel to the resonant capacitor, and the inverter circuit 12 supplies a high frequency current to the heating coil 10. The switching element is ON / OFF controlled by the control means 14, and by adjusting the ON / OFF cycle, the oscillation frequency of the inverter circuit 12 can be varied and the heating output of the heating coil 10 can be controlled. . The microcomputer 19 receives the signal of the heating switch 17 from I1, inputs the signals of the steam temperature measuring means 15, the heating cabinet wall temperature measuring means 5, and the heating cabinet temperature measuring means 4 from AD1, AD2, AD3, O1, Control signals are output from O2 and O3 to the power control means 14, the pump 13, and the display means 21. Reference numeral 20 denotes a DC power supply circuit that supplies power to a circuit such as the microcomputer 19 that requires a DC power supply.
[0017]
The operation of this embodiment will be described below. When heating start is instructed by the heating switch 17, the superheated steam generating means 6 generates superheated steam according to the output of the cooking control means 7. Moreover, the surface heater 3 energizes according to the output of the cooking control means 7, and heats a heating chamber wall. As shown in FIG. 4, when the generated steam temperature is high, the power control means 14 increases the amount of power and the pump 13 decreases the flow rate of water. As the amount of water decreases, the amount of heat supplied per unit amount of water increases and the water is heated faster, and similarly the steam is heated to a higher temperature. When superheated steam hits a low-temperature object and changes to water, it transmits temperature by giving latent heat. The latent heat is so large that it can be heated efficiently. To heat the pressurized heat chamber 1 walls intended to prevent changes in the water when the overheated steam hits the heating chamber wall, the heating chamber walls by surface heaters 3 are heated to above 100 ° C. Therefore, it is set as the structure which can heat food efficiently. The temperature measured by the heating chamber temperature measuring means 4 is displayed on the display means 21 as shown in FIG. Moreover, the cooking mode is displayed on the display means 21 according to the inside temperature. In this embodiment, when the internal temperature is 120 ° C. or higher, the LED indicating the baking cooking mode is lit, and when it is lower than 120 ° C. , the LED indicating the steaming cooking mode is lit. Superheated steam has properties suitable for cooking when the temperature exceeds 120 ° C. Steamed food can be cooked at temperatures below 120 ° C., and grilled food can be cooked above that temperature.
[0018]
Further, in this embodiment, when the steam temperature by the superheated steam temperature measuring means 15 is 120 ° C. or higher, the door lock means 22 is operated and the door is not opened. This is a precautionary measure taken because the hot steam is transparent and invisible.
[0019]
(Example 2)
Next, a second embodiment of the present invention will be described. FIG. 6 is a schematic view showing the configuration of the outer wall of the heating chamber of this embodiment. The heating chamber 1 is made of a magnetic metal, for example, SAS 304, 31 is a coil wound around the outer wall of the heating chamber 1, and 30 is an inverter circuit. A high frequency current is supplied to the coil 31 by the inverter circuit 30, and the heating chamber 1 generates heat by induction heating. According to the present embodiment, the heating chamber 1 can be heated without considering the adhesion between the heating chamber wall and the heater, that is, the degree of freedom in designing the heating chamber is high.
[0020]
(Example 3)
Next, a third embodiment of the present invention will be described. FIG. 7 is a schematic view showing a configuration around the heating chamber of the present embodiment. Reference numeral 25 denotes a heat insulating material made of glass wool or the like wound around the outer wall of the heating chamber 1. Coil 31 is driven using the inverter circuits 12 which are used to superheated steam generation means 6 in common. Since the heat insulating material 25 is provided in the heating chamber 1, heat generation in the heating chamber 1 can be reduced. Further, by using the inverter circuit 12 in common, the cost can be reduced by reducing circuit components.
[0021]
Example 4
Next, a fourth embodiment of the present invention will be described. FIG. 8 is a diagram illustrating a power supply destination of the inverter circuit 12. The heating operation is started at t0, the heating chamber 1 is heated by the coil 31, and the foam metal 11 is heated by the heating coil 10 in the superheated steam generating means 6. After time t1, only the metal foam 11 is heated by the heating coil 10 in the superheated steam generation means 6. FIG. 9 is a diagram showing a circuit configuration of this embodiment, and 26 is a switch. The heating of the heating chamber 1 by the coil 31 is stopped by opening the switch 26 by the output O4 of the microcomputer 19 at time t1. Thus, since the heating chamber 1 is not heated during the generation of the superheated steam, all the electric power that can be used is used for generating the steam. The heating chamber 1 is kept at 100 ° C. or higher because the heat radiation is suppressed by the heat insulating material 25 after being heated in the initial stage.
[0022]
(Example 5)
Next, a fifth embodiment of the present invention will be described. FIG. 10 is a view showing an outline of the superheated steam cooker of this embodiment, and 27 is a cooking sequence input means. The cooking sequence input means 27 is constituted by a microcomputer, and the user can input the order of cooking modes and the time of each cooking mode. For example, “10 minutes cooking in“ steaming cooking mode ”and 5 minutes cooking in“ baking cooking mode ”” is set. As described above, in this embodiment, the user can set a cooking sequence and perform favorite cooking.
[0023]
According to the embodiment of the present invention, a heating chamber for heating the food to be cooked therein, a door for putting food in the heating chamber, a wall heating means for heating the wall of the heating chamber, and the inside of the heating chamber A heating chamber temperature measuring means for measuring the temperature of the heating chamber, a chamber temperature display means for displaying the temperature in the heating chamber, a heating chamber wall temperature measuring means for measuring the temperature of the heating chamber wall, and a heating chamber that generates superheated steam. The superheated steam generating means for injecting into the steam, the cooking control means for controlling the superheated steam generating means, the heating means for heating the water and steam by the superheated steam generating means, the inverter circuit, and the flow rate control means for controlling the flow rate of the water And a power control means for controlling the power of the heating means and a superheated steam temperature measuring means for measuring the temperature of the generated steam, a cooker capable of easily cooking with superheated steam with high thermal efficiency can be realized. Is.
[0024]
In addition , the heating chamber wall is made of magnetic metal, a coil is wound around the heating chamber wall, an inverter circuit for wall heating is provided, and the heating chamber wall itself is heated by induction heating as a wall heating means. A superheated steam cooker with an increased degree of freedom can be realized.
[0025]
Further, as the overheat steam cooker according to claim 2, wherein where the structure used in the combined inverter circuit of the superheated steam generating means as a wall heating inverter circuit, which can realize the overheat steam cooker at a low cost to reduce the number of circuit components It is.
[0026]
In addition , a heat insulating material for suppressing heat dissipation of the heating cabinet is provided around the heating cabinet, and the wall heating by the wall heating means is finished in a predetermined time from the start of operation, and electric power is mainly used by the superheated steam generating means during cooking. As the superheated steam cooker according to claim 1, a superheated steam cooker capable of cooking with high power while suppressing the power required for heating the heating cabinet wall can be realized.
[0027]
Also includes a door locking means, as overheat steam cooker according to claim 1, wherein the steam temperature when greater than or equal to the predetermined temperature where the structure for locking the door of the heating chamber with superheated steam temperature measuring means, high safety superheated steam A cooker can be realized.
[0028]
Also includes a cooking mode display means, heating cabinet temperature measuring means inside temperature baked food mode when more than a predetermined temperature by the superheated steam of the configuration for displaying the steamed food mode during the claims 1, wherein less than An easy-to-use superheated steam cooker can be realized as a cooker.
[0029]
In addition , a cooking sequence input means is provided, the user sets the order and time of the steamed cooking mode and the grilled cooking mode, and the cooking control means controls the superheated steam generating means according to the set cooking mode and time. The superheated steam cooker according to item 1 can realize a superheated steam cooker that can perform user's favorite cooking.
[0030]
【The invention's effect】
The superheated steam cooker of this invention can implement | achieve the cooker which can perform cooking by superheated steam with good heat efficiency easily.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a superheated steam cooker according to a first embodiment of the present invention. FIG. 2 is a diagram showing a configuration of superheated steam generating means. FIG. 3 is a circuit showing a circuit configuration. FIG. 4 shows the relationship between the steam temperature and the control parameters. FIG. 5 shows the display example of the display means. FIG. 6 shows the configuration of the heating chamber of the second embodiment of the present invention. FIG. 7 is a diagram showing the configuration of the heating chamber of the third embodiment of the present invention. FIG. 8 is a diagram showing the operation of the fourth embodiment of the present invention. FIG. 10 is a diagram showing the configuration of a fifth embodiment of the present invention.
1 heating chamber 2 door 3 side heaters 4 heating housing temperature measuring means 5 heating housing wall temperature measuring means 6 superheated steam generating means 7 cooking control means 8 body 10 heating coil 11 foamed metal 12 inverter circuit 13 the pump 14 power control unit 15 steam Temperature measuring means 19 Microcomputer 20 Power supply circuit

Claims (7)

A heating chamber for heating put into the object to be cooked, a door for admitting foods into the heating chamber, and the wall heating means for heating the wall of the heating housing, heating chamber for measuring the temperature inside the heating chamber a temperature measuring means, and the internal temperature display means for displaying the temperature in the heating chamber, a heating housing wall temperature measuring means for measuring the temperature of the heating housing wall, the superheated steam injected into the heating housing to generate superheated steam Generating means and cooking control means for controlling the superheated steam generating means, wherein the superheated steam generating means is a heating means for heating water and steam, an inverter circuit, and a flow rate control means for controlling the flow rate of water. when a power control means for controlling the power of said heating means, and a superheated steam temperature measuring means for measuring the temperature of the steam generated, with increasing the electric energy by the power control unit when the steam temperature is high to occur, The flow rate control means Overheat steam cooker to reduce the higher flow rate of the water.   The overheating according to claim 1, wherein the heating chamber wall is made of a magnetic metal, a coil is wound around the heating chamber wall, an inverter circuit for wall heating is provided, and the heating chamber wall itself generates heat by induction heating as a wall heating means. Steam cooker.   The superheated steam cooker according to claim 2, wherein the inverter circuit of the superheated steam generating means is also used as the wall heating inverter circuit.   Provided with a heat insulating material to suppress the heat dissipation of the heating cabinet around the heating cabinet, the wall heating by the wall heating means is completed in a predetermined time from the start of operation, and the power is mainly used by the superheated steam generating means during cooking The overheated steam cooker according to claim 1.   The superheated steam cooker according to claim 1, further comprising a door lock unit configured to lock the door of the heating chamber when the steam temperature by the superheated steam temperature measuring unit is equal to or higher than a predetermined temperature.   The superheated steam according to claim 1, further comprising cooking mode display means for displaying a grilled cooking mode when the temperature inside the cooking chamber temperature measuring means is equal to or higher than a predetermined temperature, and displaying a steamed cooking mode when the temperature is lower than the predetermined temperature. Cooking device.   The cooking sequence input means is provided, the user sets the order and time of the steamed cooking mode and the grilled cooking mode, and the cooking control means controls the superheated steam generating means according to the set cooking mode and time. The superheated steam cooker described.

Images