KR200411946Y1 - Cooking control system for electric pressure heat insulating rice cooker - Google Patents

Abstract

The present invention relates to an electric pressure thermal rice cooker, and more particularly, to a cooking control device of the electric pressure thermal rice cooker to control each of the plurality of heaters in accordance with the temperature information from a single temperature sensor or a plurality of temperature sensors.

The cooking control device of the electric pressure thermal rice cooker of the present invention has a cover formed on the upper surface thereof, which can be opened and closed, an outer pot is installed in the inner receiving space, and a main body provided with a lid covering the inner pot inside the cover and a predetermined cooking object. An inner pot detachable to the outer pot to accommodate food, a lower part, a middle part and an upper heater which respectively heat the lower part, the middle part and the upper part of the inner pot, and a switching part which supplies power to the lower part, the middle part and the upper heater, respectively; Located in the center of the lower heater to perform a first temperature sensing unit for measuring the temperature of the lower inner pot, cooking and warming process for the food to be cooked, the first sensing temperature from the first temperature sensing unit Accordingly, the lower, middle and upper heaters are configured to control the switching unit so as to operate respectively.

Description

COOKING CONTROL SYSTEM FOR ELECTRIC PRESSURE HEAT INSULATING RICE COOKER}

1 is a cross-sectional view of the electric pressure thermal cooker according to the prior art.

Figure 2 is a block diagram of the cooking adjustment device of the electric pressure thermal rice cooker of FIG.

3 is a cross-sectional view of the first embodiment of the electric pressure thermal cooker according to the present invention.

Figure 4 is a block diagram of a cooking adjustment device of the electric pressure thermal cooker of FIG.

5 is a cross-sectional view of a second embodiment of the electric pressure thermal cooker according to the present invention.

6 is a block diagram of a cooking control device of the electric pressure thermal cooker of FIG.

<Description of the symbols for the main parts of the drawings>

10: body 11: outer pot

12: inner pot 20: cover

21: cover 22: lid

31, 32, 33: heaters 41, 42, 43: temperature sensing unit

The present invention relates to an electric pressure thermal rice cooker, and more particularly, to a cooking control device of the electric pressure thermal rice cooker to control each of the plurality of heaters in accordance with the temperature information from a single temperature sensor or a plurality of temperature sensors.

1 is a cross-sectional view of the electric pressure thermal cooker according to the prior art.

As shown in Figure 1, the electric pressure insulating rice cooker is installed on the main body 10 and the open top of the main body 10, the upper surface is opened and the outer pot 11 is built in the receiving space therein, the upper surface is opened and closed It consists of a cover 20.

In detail, the main body 10 is provided with an inner pot 12 that is detachable to the outer pot 11 so as to accommodate a predetermined target food (for example, rice).

In addition, the cover 20 is formed on the open upper surface of the main body 10, the cover 21 is exposed to the outside formed with a handle portion, the lid formed on the inner side of the cover 21 to cover the inner pot 12 It consists of 22.

Next, the heater to perform the heat during the cooking and warming process will be described. First, the heater part of the bottom heater 31 (also called a hot plate) having a flat plate shape inside the bottom of the outer pot 11, the central heater 32 formed around the outer side of the outer pot 11, and the lid 22 of the heater 22. It consists of an upper heater 33 formed on the outer surface.

In addition, in order to sense the temperature inside the inner pot 12, a temperature sensing unit 41 is installed in the center of the lower heater 31.

Figure 2 is a block diagram of the cooking adjustment device of the electric pressure thermal rice cooker of FIG.

As shown in FIG. 2, the cooking control device receives a commercial power from the outside, and supplies a power supply unit 50 to supply power to various elements of the electric pressure thermal cooker, and the power from the power supply unit 50 to the microcomputer 70. The switch unit 60 having a plurality of switches 61 to 63 to be supplied to the lower, middle and upper heaters 31, 32, and 33 by the control of the inner pot 12; Cooking and warming process according to the sensing temperature from the lower, middle and upper heaters 31 to 33 for heating, the temperature sensing unit 41 sensing the temperature of the bottom of the inner pot 12, and the temperature sensing unit 41 To perform, but consists of a microcomputer 70 for performing the control of the lower heater 31, and the control of the middle and upper heaters 32, 33 according to each process.

Looking at the operation of the conventional electric pressure thermal rice cooker of the configuration as described above, after inserting the inner pot 12 containing the rice and water in the appropriate amount of ratio into the outer pot 11, the electric pressure thermostat rice cooker in a state in which the cover 21 is closed When operating the lower heater 31 in accordance with the program embedded in the microcomputer 70 is operated accordingly the inner pot 12 is heated to cook inside the inner pot (12).

At this time, when the temperature sensing unit 41 measures the temperature of the inner pot 12 during the cooking process and inputs it to the microcomputer 70, the microcomputer 70 adjusts the power supplied to the lower heater 31. By controlling the switching unit 60, the heating degree of the lower heater 31 is adjusted and the temperature inside the inner pot 12 is adjusted to a relatively high cooking temperature.

When cooking is completed as described above, the process is switched to the warming process, in which the microcomputer 70 detects the temperature of the inner pot 12 from the temperature sensing unit 41 and controls the switching unit 60 according to the sensing temperature of the central heater. By controlling the heating degree of the middle and upper heaters 32 and 33 by turning on / off the power supplied to the 32 and the upper heater 33, the inner temperature of the inner pot 12 is kept at a relatively low thermal insulation temperature. Adjust

As described above, the conventional electric pressure thermal rice cooker controls the power supplied to the lower heater 31, but measures the temperature of the lower portion of the inner pot 12 in direct contact with the lower heater 31 during cooking, and accordingly The cooking temperature can be measured and controlled by controlling the power supplied to the heater 31, while the cooking power is controlled after the cooking process is performed for a predetermined time and during the warming process, to control the power supplied to the central heater 32 and the upper heater 33. The inner temperature of the inner pot 12 is measured by the temperature sensing unit 41 mounted at a predetermined distance from the central heater 32 and the upper heater 33, which is a heat source, to maintain the inner temperature of the inner pot 12 at a warm temperature. Because of this, it is difficult to accurately measure and control the warming temperature, resulting in defects such as discoloration, dryness and smell.

In order to solve this problem, an object of the present invention is to provide a cooking control device of the electric pressure thermal cooker to operate the plurality of heaters, the lower, middle and upper heaters during the cooking and warming process.

In addition, the present invention is to provide a cooking control device of the electric pressure thermal cooker to improve the cooking and warming effect by installing a plurality of temperature sensing unit, to maintain a constant difference between the lower, middle and upper temperature of the inner pot. It is done.

The cooking control device of the electric pressure thermal rice cooker of the present invention has a cover formed on the upper surface thereof, which can be opened and closed, an outer pot is installed in the inner receiving space, and a main body provided with a lid covering the inner pot inside the cover and a predetermined cooking object. An inner pot detachable to the outer pot to accommodate food, a lower part, a middle part and an upper heater which respectively heat the lower part, the middle part and the upper part of the inner pot, and a switching part which supplies power to the lower part, the middle part and the upper heater, respectively; Located in the center of the lower heater to perform a first temperature sensing unit for measuring the temperature of the lower inner pot, cooking and warming process for the food to be cooked, the first sensing temperature from the first temperature sensing unit Accordingly, the lower, middle and upper heaters are configured to control the switching unit so as to operate respectively.

In this case, it is preferable that the cooking apparatus further includes a second temperature sensing unit installed on the outside of the outer pot at a predetermined interval with the bottom surface of the central heater and the outer pot.

In addition, the microcomputer controls the switching unit such that the second sensing temperature from the second temperature sensing unit is maintained at a predetermined holding temperature higher than the first sensing temperature during the cooking process, thereby operating the lower, middle and upper heaters, respectively. It is desirable to.

In addition, the microcomputer preferably acquires the second sensing temperature from the second temperature sensing unit after a predetermined time when the cooking process is started.

In addition, the microcomputer preferably controls the switching unit according to the second sensing temperature during the warming process so that the lower, middle, and upper heaters operate, respectively.

In addition, the cooking control device is preferably further provided with a third temperature sensing unit provided outside the central portion of the lid.

In addition, the microcomputer controls the switching unit to maintain the second sensing temperature and the third sensing temperature from the third temperature sensing unit by a predetermined holding temperature higher than the first sensing temperature during the cooking process. And the upper heaters are preferably operated respectively.

In addition, the microcomputer preferably obtains the second sensing temperature and the third sensing temperature from the second temperature sensing part and the third temperature sensing part after a predetermined time when the cooking process is started.

In addition, the microcomputer preferably controls the switching unit according to the second sensing temperature and the third sensing temperature from the third temperature sensing unit so that the lower, middle, and upper heaters are operated, respectively.

With reference to the accompanying drawings an embodiment of the present invention by the configuration as described above will be described in more detail.

3 is a cross-sectional view of the first embodiment of the electric pressure thermal cooker according to the present invention.

As shown in Figure 3, the electric pressure insulating rice cooker is installed on the main body 10 and the open top of the main body 10, the upper surface is opened and the outer pot 11 is built in the receiving space therein, the upper surface is opened and closed It consists of a cover 20.

In detail, the main body 10 is provided with a removable inner pot 12 in the outer pot 11 so as to accommodate a predetermined target food.

In addition, the cover 20 is formed on the open upper surface of the main body 10, the cover 21 is exposed to the outside formed with a handle portion, the lid formed on the inner side of the cover 21 to cover the inner pot 12 It consists of 22.

Next, the heater to perform the heat during the cooking and warming process will be described. First, the heater part of the bottom heater 31 (also called a hot plate) having a flat plate shape inside the bottom of the outer pot 11, the central heater 32 formed around the outer side of the outer pot 11, and the lid 22 of the heater 22. It consists of an upper heater 33 formed on the outer surface.

In addition, in order to sense the temperature inside the inner pot 12, a temperature sensing unit 41 is installed at the center of the lower heater 31, and an additional temperature sensing unit 42 is the central heater 32 and the outer pot 11. Is installed on the outside of the outer pot 11 at regular intervals with the bottom.

Figure 4 is a block diagram of a cooking adjustment device of the electric pressure thermal cooker of FIG.

As shown in FIG. 4, the cooking control device is a power supply unit 50 for supplying power to various elements of the electric pressure thermal cooker by receiving external commercial power, and the power from the power supply unit 50 to the microcomputer 70. The switch unit 60 having a plurality of switches 61 to 63 to be supplied to the lower, middle and upper heaters 31, 32, and 33 by the control of the inner pot 12; Sensing from the lower, middle and upper heaters 31 to 33 for heating, the temperature sensing units 41 and 42 for sensing the temperature of the inner pot 12, and the temperature sensing units 41 and 42 Performing the cooking and warming process according to the temperature, it consists of a microcomputer 70 to control the lower, middle and upper heaters (31, 32, 33) to operate in each process.

Referring to the operation of the present invention consisting of 3 and 4 as follows.

First, rice and water are mixed in a proper ratio in the inner pot 12, and inserted into the outer pot 11 of the main body 10, and the lid 22 covers the inner pot 12, cooking in the closed state of the cover 21 When the process is operated, the microcomputer 70 controls the switching unit 60 so that the lower heater 31 is heated, and thus the heat generated from the lower heater 31 is transferred to the inner pot 12 to perform the cooking process. .

Of course, the microcomputer 70 is better by heating the entire inner pot 12 by controlling the switching unit 60 to operate not only the lower heater 31, but also the central heater 32, the upper heater 33 during the cooking process. You can cook rice with a taste of rice.

As such, during the cooking process, the temperature sensing unit 41 measures the temperature of the bottom of the inner pot 12 and sends the sensing temperature to the microcomputer 70, and the microcom 70 lowers the heater 31 according to the acquired sensing temperature. The power supplied to the central heater 32 and the upper heater 33 is controlled by the switching unit 60. Since the lower heater 31 usually emits the most heat, the control on the lower heater 31 is performed by the inner pot. (12) It has the greatest influence on the internal temperature. The microcomputer 70 thus maintains the inside of the inner pot 12 at a high cooking temperature.

As the cooking progresses, after a predetermined time of the cooking process, the temperature sensed by the temperature sensing unit 42 together with the temperature sensing unit 41 is also input to the microcomputer 70. Since the inside of the inner pot 12 is not heated at the beginning of the cooking process, the sensing temperature from the temperature sensing unit 42 is much different from the sensing temperature from the temperature sensing unit 41, and thus is not utilized during the cooking process. It is. In addition, the microcomputer 70 compares the sensing temperature measured by the temperature sensing unit 42 and the sensing temperature measured by the temperature sensing unit 41 after a predetermined time to compare the sensing temperature of the temperature sensing unit 42 with the temperature sensing unit. The lower heater 31, the middle heater 32, and the upper heater 33 to keep the temperature as large as a constant temperature (for example, +1 to +15 degrees Celsius) against the sensing temperature (30 to 150 degrees Celsius) of the 41. It will control the operation of. That is, the inner pot 12 is heated as a whole during the cooking process, so that the taste of the rice is improved by continuously maintaining the internal temperature difference within a certain temperature.

On the other hand, when the cooking process is completed and converted to the warming process, the microcomputer 70 is supplied with power to the lower heater 31, the middle heater 32, the upper heater 33 at the detected temperature measured from the temperature sensing unit 42. In order to control the switching unit 60, the central heater 32 gives a lot of influence to the state of the rice (moisture state, temperature), etc. in this warm state, but all the heaters 31 to 33 are maintained to maintain the overall temperature. By controlling the inside of the inner pot 12 to maintain the warming temperature.

At this time, the control of each heater 31, 32, 33 is the microcomputer 70 to open and close each switch (61, 62, 63) of the switching unit 60, the power is periodically supplied and cut off for a certain period of time Control in such a way that it is done.

5 is a cross-sectional view of a second embodiment of the electric pressure thermal cooker according to the present invention.

The electric pressure thermal cooker according to FIG. 5 has the same components as in FIG. 4, but additionally includes a temperature sensing unit 43 outside the center of the lid 22 to detect from the temperature sensing units 41 to 43. By the temperature it is possible to accurately detect the overall temperature of the inner pot (12).

6 is a block diagram of a cooking control device of the electric pressure thermal cooker of FIG.

The cooking control apparatus shown in FIG. 6 is supplied with external commercial power to supply power to various elements of the electric pressure thermostat rice cooker, and power from the power supply unit 50 to the control of the microcomputer 70. Switch 60 having a plurality of switches 61 to 63 to be supplied to the lower, middle and upper heaters 31, 32 and 33 by means of the inner portion of the inner pot 12 Lower, middle and upper heaters (31 to 33), the temperature sensing unit (41), (42), (43) for sensing the temperature of the inner pot 12, the temperature sensing unit (41), (42), ( The cooking and warming process is performed according to the detected temperature from 43, and the microcomputer 70 controls the lower, middle, and upper heaters 31, 32, and 33 to operate in each process.

Referring to the operation of the present invention composed of 5 and 6 as follows.

Before commencement of the cooking process, the rice and water are mixed in the inner pot 12 in an appropriate ratio, and then inserted into the inner pot 12 and the cooking process is operated while the lid 22 is closed, and the microcomputer 70 switches 60. ), The lower heater 31 is heated, and thus the heat generated from the lower heater 31 is transferred to the inner pot 12 so that the cooking process is performed. Of course, the lower heater 31 as well as the middle heater 32, the upper heater 33 during the cooking process by operating the entire inner pot 12 can be cooked with a better rice taste.

During the cooking process, the temperature sensing unit 41 measures the temperature of the bottom of the inner pot 12 and sends the sensing temperature to the microcomputer 70, and the microcomputer 70 includes the lower heater 31, the central heater 32, and the upper part. The power supplied to the heater 33 is controlled to maintain the inner temperature of the inner pot 7 at a high cooking temperature.

As the cooking proceeds as described above, after a predetermined time of the cooking process, the temperature sensed by the temperature detectors 42 and 43 together with the temperature detector 41 is also input to the microcomputer 70. Since the inside of the inner pot 12 is not heated at the beginning of the cooking process, the sensing temperature from the temperature sensing units 42 and 43 is much different from the sensing temperature from the temperature sensing unit 41. Do not utilize in. In addition, the microcomputer 70 compares the sensed temperatures measured by the temperature detectors 42 and 43 and the sensed temperatures measured by the temperature detector 41 after a predetermined time, respectively. Lower heaters 31 to maintain the detected temperatures of 43 as large as a predetermined temperature (for example, +1 to +15 degrees Celsius) relative to the sensing temperature (30 to 150 degrees Celsius) of the temperature sensing unit 41, respectively. The central heater 32, the upper heater 33 to control the operation. That is, the inner pot 12 is heated as a whole during the cooking process, so that the taste of the rice is improved by continuously maintaining the internal temperature difference within a certain temperature.

On the other hand, when the cooking process is completed and converted to the warming process, the microcomputer 70 is the lower heater 31, the central heater 32, the upper heater 33 at the detected temperatures measured from the temperature sensing unit 42, 43 By controlling the power to be supplied to the inner pot 12 maintains the inside of the warming temperature.

At this time, the control of each heater 31, 32, 33 is the microcomputer 70 to open and close each switch (61, 62, 63) of the switching unit 60, the power is periodically supplied and cut off for a certain period of time Control in such a way that it is done.

As described above, the present invention is not limited to the specific preferred embodiments described above, and any person having ordinary skill in the art to which the present invention belongs without departing from the gist of the present invention claimed in the claims, various modifications Of course, it is possible to implement, including all that can be obviously inferred from the above-described embodiment is within the scope of the claims described in the present invention.

The present invention of such a configuration has the effect of improving the taste of the rice by heating the inner pot as a whole by operating the lower, middle and upper heaters in the cooking and warming process.

In addition, the present invention by installing a plurality of temperature sensing unit, to accurately measure the temperature inside the inner pot, to maintain a constant difference between the lower, middle and upper temperature of the inner pot, improve the cooking and warming effect, discoloration of rice Prevents dryness and smell.

Claims (9)

A main body having a lid formed on an upper surface thereof, which can be opened and closed, an outer pot is installed in an inner receiving space, and a lid covering the inner pot inside the cover; An inner pot detachable to the outer pot so as to accommodate a predetermined cooking target food; Lower, middle and upper heaters which respectively heat the lower, middle and upper portions of the inner pot; A switching unit for supplying power to the lower, middle and upper heaters, respectively; A first temperature sensing unit positioned at a central portion of the lower heater to measure a temperature of the lower portion of the inner pot; Performing cooking and warming process for the food to be cooked, characterized in that made of a microcomputer for controlling the switching unit to operate the lower, middle and upper heaters according to the first sensing temperature from the first temperature sensing unit The cooking control device of the electric pressure thermostat rice cooker. The method of claim 1, The cooking control apparatus is a cooking apparatus of the electric pressure thermal cooker, characterized in that further comprising a second temperature sensing unit installed on the outside of the outer pot at a predetermined interval with the bottom surface of the central heater and the outer pot. The method of claim 2, The microcomputer controls the switching unit so that the second sensing temperature from the second temperature sensing unit is kept higher than the first sensing temperature by a predetermined holding temperature during the cooking process, so that the lower, middle, and upper heaters operate, respectively. The cooking control device of the electric pressure thermal cooker, characterized in that. The method of claim 3, The microcomputer cooking apparatus of the electric pressure thermal cooker, characterized in that for obtaining the second sensing temperature from the second temperature sensing unit after a predetermined time the cooking process is started. The method of claim 3, The microcomputer cooking apparatus of the electric pressure thermal cooker, characterized in that for controlling the switching unit according to the second sensing temperature during the warming process to operate the lower, middle and upper heater, respectively. The method of claim 2, The cooking control device is a cooking device of the electric pressure thermal cooker, characterized in that further comprising a third temperature sensing unit installed outside the center portion of the lid. The method of claim 6, The microcomputer controls the switching unit to maintain the second sensing temperature and the third sensing temperature from the third temperature sensing unit by a predetermined holding temperature higher than the first sensing temperature during the cooking process. Cooker control device of the electric pressure thermal cooker, characterized in that the heater to operate each. The method of claim 6, The microcomputer adjusts the cooking pressure of the electric pressure thermal cooker, characterized in that after the predetermined time in which the cooking process is obtained, the second sensing temperature and the third sensing temperature are obtained from the second and third temperature sensing units. Device. The method of claim 6, The microcomputer is an electric pressure thermal cooker characterized in that the lower, middle and upper heaters operate by controlling the switching unit in accordance with the second sensing temperature and the third sensing temperature from the third temperature sensing unit during the warming process. Cooking control device.

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