KR0170126B1 - Cover for electric pressure rice cooker - Google Patents

Abstract

The present invention relates to a method for preventing lid clumping of an electric pressure thermal cooker, while the electric pressure thermal cooker completes the cooking function and is switched to the warming function, the operating power supplied to the heater installed on the floor, the trunk and the lid is simultaneously On the other hand, because the temperature changes of the bottom, the body and the lid are different, water condensation occurs on the lid, which causes the rice to fall out of water and thus the quality of the rice is deteriorated. The present invention provides a method of preventing the lid clumping of the electric pressure thermal cooker to prevent the fall of the quality of the rice due to condensation on the lid while the electric pressure thermal cooker performs the warming function in advance. It is intended to be.

Description

How to prevent water condensation on electric pressure cooker

The present invention relates to an electric pressure thermal cooker.

In particular, the present invention relates to a method of preventing lid clumping of an electric pressure thermal cooker, which prevents a drop in water quality due to condensation on the lid while the electric pressure insulating cooker performs a warming function.

The general electric pressure thermal rice cooker is a key input unit consisting of keys for setting various operating environments of the electric pressure thermal rice cooker having a cooking function and a thermal insulation function, and is installed at the bottom, the trunk and the lid of the electric pressure thermal rice cooker and generates heat by various heaters. A microprocessor for controlling the operation of the electric pressure thermostat rice cooker by a temperature sensor for detecting a temperature to be detected, a temperature value detected by a key input and a temperature sensor of the key input unit, and a bottom, a lid, and a body of the electric pressure thermostat rice cooker. And a variety of heaters operating under the control of the microprocessor to heat the inside of the electric pressure thermal rice cooker, and a display unit for displaying the operation state of the electric pressure thermal rice cooker as described above. Referring to the electric pressure thermal cooker in more detail with reference to Figure 1, the microprocessor determines whether various cooking modes are set by the key input of the key input unit while maintaining the standby state after the operation power is turned on (S101) (S102) do. Then, when the cooking mode (referred to the rice, jinbap, ordinary rice, grain rice, brown rice, etc.) is set, the cooking heater, the lid heater and the body heater is operated to execute the set cooking mode (S103). That is, according to each cooking mode to control the operating time or operating temperature of the cooking heater, the lid heater and the body heater to perform the set cooking mode. When the operation of the cooking mode set as described above is terminated (S104), the cooking power and the operation power supplied to the lid heater and the body heater are shut off (S105) and the electric temperature detected by the cooking temperature sensor while performing a warming function (S106). It is determined whether the internal temperature of the thermal cooker is lower than a predetermined temperature (75 ℃) (S107).

As a result, when the internal temperature of the electric pressure thermal cooker is higher than the predetermined temperature (75 ℃), the above operation is repeated, but when the internal temperature of the electric pressure thermal rice cooker is lower than the predetermined temperature (75 ℃) Operating the heater (S108) to increase the internal temperature of the electric pressure thermal cooker.

Therefore, since the internal temperature of the battery pressure thermal cooker maintains a constant temperature (75 ℃) is to keep the rice stored inside.

However, while the cooking function is completed and the heating function is switched to the warming function, the operating power supplied to the heater installed on the floor, the trunk and the lid is cut off at the same time. As a result, water had dropped into the rice and the quality of the rice was deteriorated. Of course, while the electric pressure thermal cooker performs the warming function, the operating power supplied to the floor, the body, and the lid heater is cut off at the same time to raise the internal temperature of the electric pressure thermal cooker. As water condensation occurs, this causes water to fall into the rice, causing the whitening of rice.

1 is a flow chart showing the operating state of the conventional electric pressure rice cooker.

2 is a block diagram of an electric pressure thermal cooker according to the present invention.

3 is a flowchart according to the operation of the invention.

* Explanation of symbols for main parts of the drawings

11: cooking heater 13: lid heater

15: body heater 17: key input unit

19: display unit 21: cooking temperature sensor

23: temperature sensor for the lid 25: temperature sensor for the body

27: microprocessor

The present invention relates to a method of preventing lid clumping of an electric pressure thermal rice cooker, and more particularly, a drop of water occurs due to water condensation on a lid while the electric pressure insulating rice cooker performs a warming function. The present invention relates to a method of preventing water condensation of a lid of an electric pressure thermal cooker.

The present invention, as shown in Figure 2, the key input unit 17 consisting of keys for setting the overall operation of the electric pressure thermostat rice cooker, and the heater 11 is installed on the bottom and body and lid of the electric pressure thermostat rice cooker Temperature sensors 21 and 23 and 25 for detecting the temperature of the electric pressure thermal cooker generated by (13) and (15), and key input and temperature sensors 21 and 23 of the key input unit 17. Microprocessor 27 for controlling the overall operation of the electric pressure thermostat rice cooker by the temperature value detected by the (25), and is installed on the bottom, lid and body of the electric pressure thermostat rice cooker under the control of the microprocessor 27 The heater 11, 13, 15 which operate | moves and heats the inside of an electric pressure thermostat rice cooker, and the display part 19 which displays the operation state of an electric pressure thermostat rice cooker are comprised.

Figure 3 is a flow chart showing the operating state of the microprocessor 27 for controlling the operation of the electric pressure thermal cooker according to the present invention, by controlling the operation of each heater by the input of the key or the input of each sensor to cook and keep warm function In performing, the process of determining whether the cooking operation is finished while performing the cooking function, and when cooking is finished, the operation power supplied to each heater 11, 13, 15 is cut off and the bottom, the body and the lid 2 steps of sensing the temperature of the space where they are installed by the installed temperature sensors 21, 23 and 25, 3 steps of judging whether the temperature value of the floor is lower than the temperature of the lid by 10 ° C or more, and the bottom If the temperature value of is not more than 10 ℃ lower than the temperature value of the lid 4 steps to determine whether the temperature value of the bottom 10 ℃ or more lower than the temperature of the lid while supplying the operating power to the heater 23 for the lid, The value came of the cap If it is not lower than 10 ℃ lower than the value to supply the operating power to the heater (23) for the lid and if it is low 5 steps to perform the normal thermal insulation function, and if the temperature value of the bottom in the third step is not lower than the temperature of the lid 10 ℃ Step 6 for judging whether the temperature value is lower than the body temperature value by 5 ° C. or more, and if the floor temperature value is not lower than 5 ° C. or lower than the body temperature value, supplying operating power to the body heater 25 while supplying operating power to the body temperature 25. 7 process of judging whether it is lower than the body temperature value by more than 5 ℃, and if the temperature value of the floor is lower than 5 ℃ or more than the body temperature to perform a normal thermal insulation function, otherwise supply the operating power to the heater 25 for the body It is shown that it performs eight steps. Here, the difference between the temperature value of the lid or the body contrasted with the temperature value of the bottom temperature value described in the present invention 10 ℃ and 5 ℃, but can be arbitrarily set according to the characteristics of the electric pressure thermal cooker.

Hereinafter, the operation of the present invention.

According to the present invention, when the key input unit 17 sets the cooking function or the warming function of the electric pressure warming rice cooker, the heater is installed on the bottom, the body and the lid of the electric pressure warming rice cooker under the control of the microprocessor 27 which recognizes the heat input ( 11) (13) (15) is supplied with operating power to cook rice put into the electric pressure thermal cooker or to warm the cooked rice. At this time, the microprocessor 27 is detected by the temperature sensor 21, 23, 25 installed in the bottom, the body and the lid of the electric pressure thermal cooker as well as the key input through the key input unit 17. By controlling the operating power supplied to the heaters 11, 13, and 15 installed on the bottom, the body and the lid of the electric pressure thermal cooker according to the value, the electric pressure thermal rice cooker performs a cooking function or performs a warming function. You can do it. Particularly, in the present invention, the electric pressure thermal cooker terminates cooking and is switched to the warming mode, and at the moment when the operating power supplied to each heater 11, 13, 15 is cut off or during the warming mode, each heater ( 11) The power supply to each heater 11, 13, 15 is sequentially blocked by the temperature difference between the bottom of the electric pressure thermal cooker and the body and the lid when the power supplied to the 13, 15 is cut off. By reducing the temperature difference inside the electric pressure thermal cooker can prevent water condensation.

Since the operation state or key input state of the electric pressure thermal cooker due to the key input of the key input unit 17 is displayed through the display unit 19, the user can check the operation state or the key input state of the electric pressure thermal cooker. .

Referring to FIG. 3, the operation as described above is determined whether various cooking modes are set by key input of the key input unit 17 while maintaining the standby state after the operation power is turned on (S1).

Then, when the cooking mode (referred to the rice, jinbap, ordinary rice, grain rice, brown rice, etc.) is set, the cooking mode set by operating the cooking heater 11, the lid heater 13 and the body heater 15 Is executed (S3). That is, according to each cooking mode to control the operating time or operating temperature of the cooking heater 11, the lid heater 13 and the body heater 15 to perform the set cooking mode.

When the operation of the cooking mode set as described above is terminated (S4), the cooking power is cut off (S5) and the warming function is performed while keeping the operating power supplied to the cooking heater 11, the lid heater 13 and the body heater 15 (S5). By the temperature value of the bottom of the electric pressure thermal cooker detected by the sensor 21, the temperature value of the lid of the electric pressure thermal cooker detected by the lid temperature sensor 23, and the temperature sensor 25 for the body The temperature value of the body of the electric pressure thermal cooker is detected (S6), respectively.

Recognizing the temperature value detected by each sensor 21, 23, 25, the microprocessor 27 first measures the temperature value of the bottom detected by the cooking temperature sensor 21 to the temperature sensor 23 for the lid. It is determined whether the temperature is lower than 10 ° C lower than the temperature value detected by the lid (S7). If the bottom temperature is not lower than 10 ° C or higher than the temperature value of the lid, the operating power is supplied to the lid heater 13 (S11). It is determined whether or not the temperature value of the bottom detected by the cooking temperature sensor 21 is 10 ° C or more lower than the temperature value of the lid detected by the lid temperature sensor 23 (S12).

As a result, if the temperature value of the bottom is not lower than 10 ° C or more than the temperature value of the lid continues to supply the operating power to the heater 13 for the lid, while the low is to perform a normal heat insulation function.

That is, it is determined whether or not the temperature value detected by the cooking temperature sensor 11 is equal to or lower than a predetermined temperature (75 ° C.) (S13) so that the internal temperature of the electric pressure thermal cooker can maintain the constant temperature (75 ° C.). 11) (13) and (15) to supply / cut off the operating power (S14).

Subsequently, if the temperature value of the bottom detected by the cooking temperature sensor 21 is not lower than 10 ° C. or lower than the temperature value of the lid detected by the lid temperature sensor 23, the bottom of the floor detected by the cooking temperature sensor 21 is selected. It is determined whether the temperature value is 5 ° C. or more lower than the temperature value of the body detected by the body temperature sensor 25 (S8). As a result, if the temperature value of the floor is not lower than 5 ° C. or lower than the temperature value of the body, the temperature value of the floor detected by the cooking temperature sensor 21 is supplied to the body heater 15 while supplying operating power to the body heater 15 (S9). It is determined (S10) whether the temperature of the torso detected by (25) is 5 ° C. or more.

And if the temperature value of the floor is not lower than 5 ° C or more than the temperature value of the body continues to supply the operating power to the heater 15 for the body, and if the low is to perform a normal heat insulation function.

That is, it is determined whether or not the temperature value detected by the cooking temperature sensor 11 is equal to or lower than a predetermined temperature (75 ° C.) (S13) so that the internal temperature of the electric pressure thermal cooker can maintain the constant temperature (75 ° C.). 11) (13) and (15) to supply / cut off the operating power (S14).

Therefore, when the operation mode of the electric pressure thermal cooker is switched from the cooking mode to the warming mode or when the operation power is cut off while driving each heater for warming, the internal temperature of the electric pressure thermal cooker falls over a certain width for each part. This prevents water from forming on the lid.

Although the present invention has been described with reference to only one embodiment of the lid condensation preventing device and method of the electric pressure thermostat rice cooker as described in the claims, it is not limited to this and various applications and modifications will be possible to those skilled in the art.

The present invention has been devised to solve the conventional drawbacks as described above, to prevent the fall of the quality of the rice due to water drops on the lid during the electric pressure thermal cooker to perform the warming function to prevent in advance The purpose of the present invention is to provide a method of preventing water condensation of an electric pressure cooker.

The present invention for achieving the object as described above, in performing the cooking function and the warming function, the process of determining whether the cooking operation is terminated while performing the cooking function and the operation power supplied to each heater when cooking is finished 2 processes to sense the temperature of the space where they are installed by the temperature sensor installed on the floor, the body and the lid, and 3 processes to determine whether the temperature value of the floor is lower than the temperature of the lid by 10 ℃ or more, and If the temperature value is not lower than 10 ℃ above the lid temperature, 4 steps of judging whether the bottom temperature is lower than 10 ℃ above the lid temperature while supplying operating power to the lid heater, and the bottom temperature is If the temperature value is not lower than 10 ℃, supply the operating power to the heater for the lid, and if it is low, the temperature value of the floor in the 5th process and the 3rd process perform the normal warming function. If the temperature value of the floor is not lower than 10 ℃, the process of judging whether the floor temperature is lower than the temperature of the body is 5 ℃ or more.If the floor temperature is not lower than 5 ℃, the operating power is supplied to the body heater. 7 steps to determine whether the floor's temperature value is 5 ℃ or more lower than the body's temperature while supplying, and if the floor's temperature is 5 ℃ or more lower than the body's temperature, it performs normal heat insulation function. It is characterized in that it is made to perform the eight steps of supplying power.

Claims (1)

In performing the cooking function and the warming function, the first step of determining whether the cooking operation is completed while performing the cooking function; 2 steps of cutting the operating power supplied to each heater when the cooking is finished and sensing the temperature of the space where they are installed by the temperature sensor installed on the floor, the body and the lid; 3 to determine whether the temperature value of the bottom is lower than the temperature of the lid by more than 10 ℃; If the temperature value of the bottom is not lower than 10 ° C. or lower than the temperature value of the lid, supplying operating power to the heater for the lid while determining whether the temperature value of the bottom is lower than 10 ° C. or higher than the temperature of the lid; 5 steps of supplying operation power to the heater for the lid if the temperature value of the bottom is not more than 10 ℃ lower than the temperature value of the lid, and performs a normal thermal insulation function; In step 3, if the bottom temperature is not lower than the temperature of the lid by more than 10 ℃ 6 process to determine whether the bottom temperature is less than 5 ℃ than the temperature of the body; Judging whether the floor temperature value is not lower than 5 ° C. or lower than the body temperature by 7 C; If the temperature value of the floor is lower than the temperature of 5 ° C or more, it performs a normal heat insulation function, otherwise it performs 8 steps of supplying the operating power to the heater for the body. Prevention method.