KR100746443B1 - Electric pressure heat insulating rice cooker with custom-made insulating function - Google Patents

Abstract

An electric pressure rice cooker with a custom-made insulating function is provided to prevent quality of cooked rice from being lowered by continuously keeping warm of the rice cooker. An electric pressure rice cooker with a custom-made insulating function includes an input part(40), a power supply(50), a heater part(30), a display part(60), and a microcomputer(70). The input part receives a custom-made insulating setting command from a user. The power supply receives power from the exterior so as to apply an appropriate voltage to the heater part. The heater part receives power from the power supply and performs ON/OFF operation to generate heat under the control of the microcomputer. The display part displays a progress state of the electric pressure rice cooker. The microcomputer controls ON/OFF operation of the heater part according to the custom-made insulating setting command, performs a pause process at least once during a heat insulation process, and performs a re-heating process before re-performing the heat insulation process after the pause process.

Description

ELECTRIC PRESSURE HEAT INSULATING RICE COOKER WITH CUSTOM-MADE INSULATING FUNCTION}

1 is a state diagram showing the thermal insulation algorithm of the electric rice cooker according to the prior art.

Figure 2 is a cross-sectional view of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention.

Figure 3 is a block diagram of an electric pressure insulating rice cooker having a custom insulating function according to the present invention.

4A and 4B are front views of the input unit and the display unit of the electric pressure thermal cooker of FIG.

Figure 5 is a flow chart of the control method of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention.

6a and 6b are graphs of the temperature of the inner pot when the control method of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention is applied.

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

30: heater unit 40: input unit

50: power supply unit 60: display unit

70: micom

The present invention relates to an electric pressure thermal rice cooker, and more particularly, to an electric pressure thermal rice cooker having a customized thermal insulation function to provide a maintenance of rice quality and a reduction of power consumption by performing a rest process during the thermal insulation process.

Insulation control method of the conventional electric rice cooker has been controlled by sensing the bottom temperature of the inner pot to keep the rice at the target temperature. During the warming control process, when the user opens the lid of the rice cooker to eat rice, the temperature of the rice decreases due to the inflow of cold outside air. Then, the user closes the lid of the cooker, even after the cooker enters the warming process again, while controlling the temperature to reach the target temperature with the same control as the previous warming process while sensing the temperature of the inner pot bottom.

1 is a state diagram showing the thermal insulation algorithm of the electric rice cooker according to the prior art.

As shown in the state diagram of Figure 1, after the electric insulation rice cooker performs the cooking process, when the cooking process is completed, it is switched to the warming process accordingly. At this time, the temperature of the inner pot of the electric thermal cooker is shown in the T1 section, the inner pot temperature is high before the inner pot is mixed and the rice is mixed.

Conventionally, when the cooking process is completed, and proceeds to the warm state at the same time, the signal according to the cooking completion is output. At this time, the user may mix the rice according to his habits, or may maintain the cooking completion state as it is.

If the user does not properly mix the rice, as shown in the figure, the temperature is gradually lowered to reach the target temperature for keeping T2. That is, the temperature of the inner pot is gradually lowered during the T2 hours, and reaches the same warm target temperature as the T3 section after the T2 hours have elapsed.

In the conventional electric insulation rice cooker, if the rice elapses for a long time in a warm state, it causes browning phenomenon that the color of the rice is yellowed in proportion to the temperature and time. The browned rice is not only delicious but also smelly and aesthetic. Therefore, consumers don't like brown rice.

In addition, the conventional electric insulation rice cooker is required to repeat the on and off of the heater in order to maintain the state of continuous insulation for a long time, a considerable power is consumed in the cooking process during the insulation process.

In order to solve this problem, an object of the present invention is to provide an electric pressure thermal cooker having a customized thermal insulation function to prevent deterioration of the rice quality due to continuous thermal insulation.

In addition, an object of the present invention is to provide an electric pressure thermal cooker having a customized thermal insulation function to perform the thermal insulation process and the rest process according to the customized thermal insulation setting command set by the user.

In addition, an object of the present invention is to provide an electric pressure thermal cooker having a customized thermal insulation function to reduce power consumption by performing a rest process for a predetermined time during the thermal insulation process.

The electric pressure insulating rice cooker having a customized thermal insulation function of the present inventors controls the on / off of the heater portion to heat the inner pot, and according to a predetermined customized heat setting command, the microcomputer to perform at least one pause process during the thermal insulation process Is done.

At this time, the custom heat insulation setting command preferably includes at least one or more of the idle time or warm time.

In addition, the rest process preferably includes bed keeping warm.

In addition, the microcomputer preferably performs a reheating process after the rest process and before performing the warming process again.

In addition, the electric pressure thermal cooker preferably includes an input unit for receiving a custom heat setting command from the user, and a display unit for displaying the state of the idle process and the warming process.

In addition, the present inventors control method of the electric pressure thermal insulation rice cooker having a customized thermal insulation function is a step of reading the customized thermal insulation setting command, and performing the at least one pause process during the thermal insulation process according to the read the customized thermal insulation setting command Include.

Hereinafter, the present invention has been described in detail based on the embodiments of the present invention and the accompanying drawings. However, the scope of the present invention is not limited by the following embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

Figure 2 is a cross-sectional view of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention. As shown in Figure 2, the electric pressure insulating rice cooker is installed on the main body 10 and the top surface is opened and the outer pot 11 is built in the receiving space therein, the open upper surface of the main body 10 to open and close the upper surface 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 cooking target content or food (for example, rice, etc.).

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 is mounted with a flat lower heater 31 inside the bottom of the outer pot (11). Here, the lower heater is a hot plate in the case of a hot plate type, and corresponds to an IH coil in the case of an IH type. In addition, when the electric pressure thermal cooker is a hot plate type, a central heater formed around the outer side of the outer pot 11, and the upper heater formed on the outer surface of the lid 22 is provided.

In addition, an input unit 40 for receiving a menu start command, a menu selection, etc. from the user is mounted on the front surface of the main body 10.

3 is a configuration diagram of the electric pressure thermal cooker having a customized thermal insulation function according to the present invention, Figures 4a and 4b are front views of the input portion and the display portion of the electric pressure thermal rice cooker of FIG.

As shown in FIG. 3, the electric pressure thermal cooker includes an input unit 40 receiving at least a customized heat setting command from a user, and a power supply unit 50 receiving power from the outside and applying an appropriate voltage to the heater unit 30. And a heater unit 30 which receives power from the power supply unit 50 to perform on / off operation under the control of the microcomputer 70 and generates heat, and a display unit 60 which displays a progress state of the electric pressure thermal cooker. And the microcomputer 70 for controlling the above-described components to perform the customized insulation according to the customized insulation setting command.

In detail, the heater part 30 consists of the switch SW which operates according to the control signal (for example, an open signal or a close signal, etc.) from the microcomputer 70, and the heater 31 shown in FIG.

In addition, the input unit 40 includes at least a customized thermal insulation setting button 41 for receiving a customized thermal insulation setting command from a user, and a time setting button 42 for setting a idle process time or thermal insulation process time according to a form of customized thermal insulation. do. Hereinafter, the input of the idle process time through the time setting button 42 will be described as an embodiment.

In addition, the input unit 40, as shown in Figs. 4A and 4B, the heat setting button 43 for receiving a general heat setting command from the user, and a menu / selection for input of selection and confirmation of menu selection and setting A button 44 and a cancel button 45 for canceling the setting are provided.

Here, the customized heat setting button 41 is a means for the user to receive a custom heat setting command according to the use pattern of the electric pressure heat cooker of the user, not the general heat. Here, the usage pattern is information about the user eating at 7am, 1pm, and 8pm, and the like, and at least at this time, the rice should be kept warm, and at other times, it is kept warm at all. You don't have to keep it. As shown in FIG. 4A, when the user presses the customized thermal insulation setting button 41 once, the display unit 60 indicates that the user's setting is "custom thermal insulation", and afterwards, the customized thermal insulation setting button 41 is once again. Press) to select "Morning". At this time, the user can set the idle process time (or idle process time) in the morning using the time setting button 42. In the present specification, the idle process time is used as a concept including both a range of a predetermined time (for example, 8 o'clock to 10 o'clock) or a time (for example, 8 o'clock). Afterwards, in order to set the idle process of the afternoon, the custom heat preservation setting button 41 should be pressed once again, after which the idle process time is set again, and the custom heat preservation setting for morning, afternoon, evening and sleep, The idle process time is set for each. In the above-described selection, the microcomputer 70 confirms the matter by pressing the menu / selection button 44 of the user, and cancels the setting by pressing the cancel button 45.

In addition, the display unit 60 displays at least the current state and the reservation state of the electric pressure thermal cooker. First, in relation to the customized heat retention, the display unit 60, as shown in Figure 4a, in the setting step for the customized heat retention, and the setting for the detail of the morning, afternoon, evening and sleep, and in detail Display the time setting for. In addition, the display unit 60, as shown in Figure 4b, currently indicates that the electric pressure thermal cooker is in progress of customized heat insulation (morning).

In addition, the microcomputer 70 allows a user to input a customized thermal insulation setting command through the input unit 40 and the display unit 60 described above, and stores the customized thermal insulation setting command input thereto in a predetermined storage space. This customized heat setting command includes at least the selection of the morning, afternoon, evening, and sleeping pause processes, each pause process time, and the like. In particular, in the case of bed warmth, for example, the idle process time from 23:00 to 4 am of the next day may be automatically set. Of course, even in the case of sleep warming, the rest process time can be set by the user.

As described above, the idle process time may be set to a predetermined time range or time. First, when the idle process time is within the time range, the microcomputer 70 reads the customized thermal insulation setting command, and if the current time corresponds to the idle process time during the warming process, the microcomputer 70 converts from the warming process to the idle process. After this time range, the process is converted back to the warming process from the rest process. Secondly, when the idle process time is time, the microcomputer 70 performs the idle process for a predetermined time before and after this time. Description of this is made in detail in FIG. 5. Here, the rest process is a process in which the microcomputer 70 controls the heater unit 30 so that no power is supplied to the heater 31 at all, so that the heating by the heater 31 is not performed. Is the same as the warming process.

In addition, the microcomputer 70 additionally performs a reheating process after the rest process and before the warming process, when converting from a rest process to a heat retention process. During the rest process, as described above, heating is not performed at all, and it may take a considerable time to raise the temperature of the current inner pot to the warming temperature according to the warming process only by the warming process. Therefore, the microcomputer 70 performs a reheating process, the heating is performed by the heater unit 30 to a reheating temperature higher than the warming temperature of the warming process, and the warming state is quickly performed by performing the warming process thereafter. To be possible. In addition, this reheating process raises the temperature of the inner pot to the reheating temperature so that the quality of the rice being kept warm is close to the quality of the rice made by the original cooking.

Figure 5 is a flow chart of the control method of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention. 5 is a case where the idle process time is input in time.

In detail, in step S51, the microcomputer 70 reads the custom heat insulation setting command previously input by the user. This reading confirms whether there is an idle process setting for morning, afternoon, evening, and sleep, and confirms the idle process time in each idle process. For example, the microcomputer 90 confirms by reading that the idle process time is "10:30 am".

In step S52, the microcomputer 70 starts and maintains the thermal insulation process since the custom thermal insulation setting command is basically based on the thermal insulation process. That is, the microcomputer 70 may be performed by initiating or continuing the warming process, or by restarting the warming process.

In step S53, the microcomputer 70 determines whether the current time is 60 minutes before the idle process time by the built-in time counting means (not shown). If the current time is 60 minutes before the idle process time, the process proceeds to step S54; otherwise, the process proceeds to step S52. For example, if the current time is 9:30 am, the process proceeds to step S54, and before that, the process proceeds to step S52 to continue the heat insulation process.

In step S54, the microcomputer 70 transmits an open control signal that is turned off to the heater unit 30 so that the heater unit 30 stops the heating or warming operation.

In step S55, the microcomputer 70 determines whether the current time is 60 minutes after the idle process time. If the current time is 60 minutes after the idle time, the process proceeds to step S56; otherwise, the process proceeds to step S54. For example, if the current time is 11:31 am, the process proceeds to step S56, and before that, the process proceeds to step S54 to continue the warming process.

In step S56, the microcomputer 70 performs the reheating process before completing the rest process and performing the warming process. In this reheating process, as described above, the microcomputer 70 performs the reheating process of closing control signals turned on to the heater unit 30 so that the temperature inside the cooker is increased by the reheating temperature higher than the warming temperature. In general, since the electric pressure insulation rice cooker is provided with at least one temperature sensor, the internal temperature is measured by using the temperature sensor, and when the measured temperature reaches the reheating temperature, the process proceeds to step S53 to insulate the heat. To resume.

Through these steps S53, S54 and S56, the microcomputer 70 can reduce the power consumption and maintain a good rice state when the user eats.

In addition to the flowchart of FIG. 5, when the idle process time is a predetermined range as described above, the idle process may be performed if the current time falls within this range.

6a and 6b are graphs of the temperature of the inner pot when the control method of the electric pressure thermal cooker with a customized thermal insulation function according to the present invention is applied.

As shown in FIG. 6A, the microcomputer 70 performs morning insulation, afternoon insulation, and evening insulation, 8 to 10 am (9 am rest time) and 14 to 16 pm (15 pm rest time). , Resting process from 20 to 22 o'clock at night (21 o'clock rest time at night) between the warming process and reheating process between the rest process and the warming process. Perform heating. During the rest process, the microcomputer 70 keeps the heater unit 30 in the off state continuously, and during the heat keeping process, the heater unit 30 is turned on / off to maintain the warming temperature.

As shown in FIG. 6B, the microcomputer 70 keeps the heater unit 30 in the off state continuously until 23 to 04 hours during bed warming. Since the heater unit 30 does not operate at all during bed warmth, a considerable power consumption can be reduced as compared with the case of continuous warming during bedtime.

Here, the morning warming, afternoon warming, evening warming and bed warming may be optionally used.

The present invention of such a configuration has the effect of preventing the deterioration of the rice quality due to the sustained insulation by performing a rest process during the warming process.

In addition, the present invention has the effect of performing the thermal insulation process and the rest process according to the customized thermal insulation setting command set by the user.

In addition, the present invention has the effect of reducing the power consumption by performing a rest process for a predetermined time during the warming process.

Claims (10)

A heater unit for heating the inner pot; By controlling the on / off of the heater unit according to the custom heat setting command, and performing at least one rest process during the warming process, after the rest process, the microcomputer to perform the reheating process before performing the warming process again. Electric pressure insulation rice cooker with a customized thermal insulation function. According to claim 1, wherein the customized heat setting command is an electric pressure thermal cooker having a customized thermal insulation function, characterized in that it comprises at least one or more of the idle time or warming time. According to claim 1, wherein the resting process electric pressure insulation rice cooker having a customized thermal insulation function, characterized in that it comprises bed warming. According to claim 1, wherein the reheating temperature of the reheating process electric pressure insulating rice cooker having a customized thermal insulation function, characterized in that higher than the warming temperature of the warming process. According to any one of claims 1 to 4, the electric pressure thermal insulation cooker includes an input unit for receiving a custom heat setting command from the user, and a display unit for displaying the state of the idle process and the thermal insulation process Electric pressure cooker with the function. Reading a custom thermal insulation setting command; A step of performing at least one pause process during the warming process according to the read-out customized heat setting command, wherein the customized heat retaining function is characterized in that a reheating step is performed before performing the warming process again after performing the rest process Control method of electric pressure thermal cooker with. delete 7. The control method according to claim 6, wherein the reheating step comprises heating up to a reheating temperature higher than the warming temperature in the warming process. The method of claim 6, wherein the control method further includes a step of receiving a custom heat setting command, wherein the custom heat setting command includes a pause or a warm time. .  10. The method of claim 9, wherein the step of performing the rest process comprises performing a rest process for a predetermined time before and after a rest time.

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