KR100667202B1 - A steam cooking apparatus and method to alarm the high temperature door thereof - Google Patents

Abstract

The present invention relates to a steam cooking apparatus and a high temperature door warning method, a cooking chamber, a steam generating unit disposed outside the cooking chamber, a steam supply unit for guiding the steam of the steam generating unit to the cooking chamber, the cooking chamber It has a door for opening and closing the opening, and a warning light to warn that the door is hot, to inform the user that the door is hot.

Description

A steam cooking apparatus and method to alarm the high temperature door

1 is a front view showing the appearance of the steam cooking apparatus according to an embodiment of the present invention.

2 is a perspective view showing the configuration of the steam cooking apparatus shown in FIG.

3 is a cross-sectional view taken along the line III-III of FIG.

4 is a block diagram showing the configuration of the steam cooking apparatus shown in FIGS.

FIG. 5 is a flowchart illustrating a high temperature door warning method of the steam cooking apparatus shown in FIGS. 1 to 4.

* Description of the symbols for the main functions of the drawings *

             2: door 3: control panel

             5: Warning light 7: Cooking temperature sensor

             10: cooking room 20: water supply unit

             30: steam generating unit 40: steam supply unit

The present invention relates to a steam cooking apparatus and a high temperature door warning method, and more particularly, a steam cooking apparatus for notifying a user by flashing warnings when a door for opening and closing the cooking chamber becomes hot due to an increase in the cooking chamber temperature of the steam cooking apparatus. The high temperature door warning method.

In general, a common method of cooking food is to put food in a gas oven or an electric oven to heat food directly, cook food by heating a steamed food container, or put food in a microwave oven. There is a method of cooking using.

When cooking food directly by heating it, as in gas or electric ovens, food is oxidized in contact with oxygen contained in the air, and the taste of food is reduced. When cooking using a steaming container, too much water is contained in the food. The taste peculiar to food falls. In addition, when cooking with a microwave, the high frequency is not evenly injected into the food, the food is locally burned or less cooked, it is not possible to cook uniformly.

As an alternative to solve the shortcomings of the conventional cooking methods, a cooking apparatus for supplying food with superheated steam has been developed. When cooking food using superheated steam, high temperature superheated steam is directly applied to the entire surface of the food. Not only does the food not burn or become less cooked, but also maintains proper moisture throughout the food, resulting in a taste of the food. An example of a cooking apparatus using such superheated steam is Japanese Laid-Open Patent Publication No. 2004-162936.

The steam cooking apparatus disclosed in Japanese Laid-Open Patent Publication No. 2004-162936 includes a water supply device, a saturated steam generator, a superheated steam generator, and a hot air generator to supply superheated steam to a cooking chamber in which food is placed, and to heat contained in the superheated steam. Food was allowed to cook. At this time, since the superheated steam having a high temperature is supplied to the cooking chamber of the steam cooking apparatus, the temperature of the cooking chamber increases, and thus the temperature of the door for opening and closing the cooking chamber also increases.

However, the conventional steam cooking apparatus has a problem in that the user grabs the hot door with his bare hands because there is no indication that the door is hot.

The present invention is to solve the above problems, an object of the present invention to provide a steam generator and a high temperature door warning method for informing the user that the door is a high temperature.

The present invention for achieving the above object is a cooking chamber, a steam generating unit disposed outside the cooking chamber, a steam supply unit for guiding the steam of the steam generating unit to the cooking chamber, the door opening and closing the opening of the cooking chamber And a warning light to warn that the door is hot.

In addition, the warning light is characterized in that provided in the front of the housing.

In addition, the steam cooking apparatus further includes a cooking chamber temperature sensor for measuring the temperature of the cooking chamber, if the temperature of the cooking chamber measured by the cooking chamber temperature sensor is higher than the first reference temperature may cause a danger to the user. It is characterized in that the warning lamp flashes because it is above the second reference temperature.

In addition, a cooking chamber, a steam generating unit disposed outside the cooking chamber, a steam supply unit for guiding the steam of the steam generating unit to the cooking chamber, a cooking chamber temperature sensor measuring a temperature of the cooking chamber, and an opening of the cooking chamber A steam cooking apparatus having a door to open and close and a warning light to warn that the door is hot, the cooking temperature is measured by the cooking temperature sensor, and if the temperature of the cooking chamber is equal to or greater than a first reference temperature, The warning lamp blinks by determining that the temperature is equal to or higher than a second reference temperature that may cause a danger to the user.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3, the steam cooking apparatus according to an embodiment of the present invention is provided with a predetermined space between the housing 1 and the housing 1 in the housing 1 to form an appearance. And a control panel 3 disposed above the cooking chamber 10, and a door 2 for opening and closing an open front surface of the cooking chamber 10. In addition, the steam cooking apparatus according to an embodiment of the present invention, the water supply unit 20 and the steam generating unit 30 is disposed in the space between the housing 1 and the cooking chamber 10 to supply steam to the cooking chamber 10. And a pair of steam supply unit 40 is further provided.

The control panel 3 is provided on the front of the housing 1, and various buttons and rotary switches 4 for setting the operation of the steam cooking device, a warning light 5 flashing when the door 2 is heated, steam The display unit 6 which displays the operation of the cooking apparatus is provided.

The cooking chamber 10 includes a top plate 11, a bottom plate 12, both side plates 13, and a back plate 14 to form a predetermined volume of internal space for cooking food. Although not specifically illustrated, the heat insulating member may be surrounded by a heat insulating member so that heat does not escape to the outside of the cooking chamber 10. In addition, one side plate 13 of both side plates is provided with a cooking chamber temperature sensor 7 for measuring the temperature of the cooking chamber.

The water supply unit 20 is installed on all of the outer side of the upper surface plate 11 to supply water to the steam generating unit 30, and the steam generating unit 30 is installed on the outer rear side of the upper surface plate 11 to supply steam. And a pair of steam supply units 40 are installed at each side plate 13 to supply the steam delivered from the steam generating unit 30 to the cooking chamber 10.

The water supply unit 20 is a water supply case 21, a water supply container 22 coupled to or separated by the water supply case 21 in a slide manner, and a water supply pipe connecting the water supply container 22 and the steam generating unit 30 ( It is provided with 23 to supply the water filled in the water supply container 22 to the steam generating unit 30 through the water supply pipe (23). The water supply pipe 23 is provided with a water supply control valve 24 for opening and closing the water supply pipe 23 to adjust the amount of water supplied to the steam generating unit 30.

The steam generating unit 30 includes a steam casing 31, a steam generating heater 32 installed inside the steam vessel 31, a fan casing 33 coupled to the steam container 31 in a state of communicating with the steam casing 31, and a fan casing. A blower fan 34 installed inside the 33 and a plurality of steam pipes 35 connecting the steam container 31 and each steam supply unit 40 to the steam generator 31 in the steam container 31 ( The steam produced by 32 is supplied to each steam supply unit 40 through the steam pipes (35).

Each steam supply unit 40 includes a steam duct 41 coupled to the outside of each side plate 13 of the cooking chamber 10, a circulation fan 42 installed inside the steam duct 41, and a circulation fan ( A steam heating heater 43 is disposed surrounding the outer circumference of the 42.

A plurality of inlet holes 15 having a small size is disposed at the center of each side plate 13 of the cooking chamber 10, and a small size is formed at the outside of the inlet hole 15, that is, at the edge of each side plate 13. A plurality of outlet holes 16 are provided, and the heat exchanged with food in the cooking chamber, the temperature of which is dropped to the steam duct 41 through the center of each side plate 13 is changed into a superheated steam after each side The inner circulation is discharged back to the cooking chamber 10 along the edge of the plate (13). The plurality of outlet holes 16 are symmetrically arranged on the upper and lower portions, and the entirety and the rear portion of the plurality of inlet holes 15 formed in the central portion.

In the center of the upper plate 11 of the cooking chamber 10 is provided with an intake port 17 communicating with the fan casing 33 of the steam generating unit 30 and controlled to be opened and closed by a damper (not shown). The steam inside is sucked by the blowing fan 34 installed in the fan casing 33 and flows into the steam supply unit 40 together with the steam generated in the steam container 31, and again, the plurality of outflow holes 16 Through the symmetrical external circulation is sent to the cooking chamber.

Opening and closing of the steam container 31 is controlled by the exhaust control valve 19 and an exhaust pipe 18 extending outward of the housing 1 is provided to control the damper of the intake port 17 and the exhaust pipe 18. When the blower fan 34 is operated while the valve 19 is open, the steam inside the cooking chamber 10 may be discharged to the outside of the housing 1, so that the steam pressure and the temperature inside the cooking chamber 10 may be adjusted during cooking. After cooking, it is possible to safely discharge the high temperature steam in the cooking chamber 10.

In addition, a cooling fan 50 is installed at the rear of the housing 1 to cool the space between the housing 1 and the cooking chamber 10, and a drain control valve 52 is provided at the water supply pipe 23 of the water supply unit 20. A drain pipe 51 which is opened and closed by and extending into the cooking chamber 10 is connected to allow the water remaining in the steam container 31 and the water supply container 21 to be drained through the cooking chamber 10 after cooking. .

As shown in FIG. 4, the steam cooking apparatus according to the exemplary embodiment of the present invention includes a valve driver 62 for driving various valves 19, 24, and 52 and various fans in addition to the apparatus shown in FIGS. 1 to 3. A fan driver 63 for driving 34 and 50, a heater driver 64 for driving various heaters 32 and 43, and a microcomputer 61 for controlling the operation of the steam cooking apparatus.

Referring to Figure 5 will be described a high temperature door warning method of the steam cooking apparatus according to an embodiment of the present invention. When a user puts food into the cooking chamber 10 and operates a steam cooker by operating a button or a rotary switch 4 of the control panel 3, the water of the water supply container 22 is supplied to the steam container 31 through the water supply pipe 23. ) Is heated by the steam generating heater (32).

Steam generated in the steam container 31 by the heat of the steam generating heater 32 is sent to each steam duct 41 through the steam pipes 35 by the operation of the blower fan 34, and then the circulation fan 42 And the steam heating heater 43 is converted into a superheated steam of a higher temperature and is supplied to the cooking chamber 10 through a plurality of outlet holes 16 formed in each side plate 13 of the cooking chamber 10.

At the same time, the steam inside the cooking chamber 10 introduced into the steam duct 41 through the plurality of inlet holes 15 formed in the center of each side plate 13 by the operation of the circulation fan 42 is a steam pipe ( After mixing with the steam supplied through 35) the internal circulation is switched to the superheated steam by the heater 43 is sent back to the cooking chamber (10). In addition, when the blower fan 34 is operated while the damper of the inlet port 17 is opened and the exhaust control valve 19 of the exhaust pipe 18 is closed, steam in the cooking chamber 10 is generated in the steam container 31. A symmetrical external circulation that flows through the steam pipes 35 through the steam pipes 35 and returns to the cooking chamber 10 is achieved.

While cooking in this process, the cooking chamber temperature sensor 7 measures the temperature of the cooking chamber 70, and determines whether the measured cooking chamber temperature is equal to or greater than the first reference temperature (72). If the temperature of the cooking chamber is equal to or greater than the first reference temperature, the warning lamp 5 blinks because the temperature of the door 2 is equal to or greater than the second reference temperature (74).

At this time, the second reference temperature is a critical temperature which can be safe when the user grasps the door 2, and the first reference temperature is the temperature of the cooking chamber 10 when the temperature of the door 2 reaches the second reference temperature. Temperature. Therefore, in the microcomputer 61, data on the temperature change of the door 2 corresponding to the temperature change of the cooking chamber 10 should be stored in advance, and this data can be appropriately set by an experiment.

<Table 1>

Galley temperature Door temperature ...... 150 68 ...... 300 96

For example, when the microcomputer 61 stores data as shown in Table 1, and the temperature of the door 2 is 68 ° C or higher (that is, the second reference temperature is 68 ° C or higher), the warning lamp is to blink. Since the temperature of the cooking chamber 10 corresponding to the temperature 68 ° C of the door 2 is 150 ° C, the warning lamp 5 blinks when the temperature of the cooking chamber 10 is 150 ° C or more.

Next, it is judged whether the cooking is finished (76). When the cooking is finished, the cycle ends, and when the cooking is not finished, the process returns to step 70. Meanwhile, if the temperature of the cooking chamber 10 is lower than the first reference temperature in step 72, step 76 is performed.

As described in detail above, the present invention can prevent the user from holding the hot door with bare hands since the warning lamp blinks when the door becomes hot.

Claims (4)

Cooking Room, A steam generating unit disposed outside the cooking chamber; A steam supply unit for guiding the steam of the steam generating unit to the cooking chamber; A door for opening and closing the opening of the cooking compartment; A cooking chamber temperature sensor for measuring a temperature in the cooking chamber; A warning light to warn that the door is hot, When the temperature in the cooking chamber measured from the cooking chamber temperature sensor is higher than a predetermined temperature, the steam cooking apparatus including a microcomputer to blink the warning light to warn that the door is hot The method of claim 1, The warning light is steam cooking apparatus characterized in that provided on the front of the housing delete A cooking chamber, a steam generating unit disposed outside the cooking chamber, a steam supply unit for guiding the steam of the steam generating unit to the cooking chamber, a cooking chamber temperature sensor measuring a temperature of the cooking chamber, and opening and closing the opening of the cooking chamber. In the steam cooking apparatus having a door and a warning light to warn that the door is hot, The temperature of the cooking chamber is measured by the cooking chamber temperature sensor, When the temperature of the cooking chamber is above the first reference temperature is determined that the temperature of the door is more than the second reference temperature that may pose a danger to the high temperature door warning method of the steam cooking apparatus, characterized in that flashing the warning lamp

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