KR20020089913A - Method for sterilizing microwave oven having a sterilizing ultraviolet lamp - Google Patents

Abstract

PURPOSE: A method for sterilization is provided to sterilize food and other stuff for sanitation using high heat and ultraviolet ray lamp with a locking mode of sterilization. CONSTITUTION: A high heat from a heater and an electromagnetic wave from a magnetron are radiated to a cooking chamber to cook food. A controlling portion comprises a program to let a user know whether utensils are sterilized in a cooking chamber. The program comprises a step of outputting an initial value by detecting weight of stuff on a tray when a sterilization key is on. After sterilization, a first value of the weight is outputted. If the initial value is larger than the first value, it is indicated that there is a stuff in the cooking chamber and a locking mode is operated.

Description

Sterilization method of microwave oven with ultraviolet sterilization lamp {METHOD FOR STERILIZING MICROWAVE OVEN HAVING A STERILIZING ULTRAVIOLET LAMP}

The present invention relates to an apparatus for sterilizing a microwave oven having an ultraviolet germicidal lamp, and more particularly, to a method for sterilizing a microwave oven having an ultraviolet germicidal lamp for recognizing a user whether sterilized tableware exists in a cooking chamber. will be.

A general microwave oven is a device that cooks by applying electromagnetic waves to food, and is a cooking apparatus. A main body including a cooking chamber for accommodating food, a magnetron for generating electromagnetic waves, a high-pressure generator, and the like are attached to the front of the main body, and the entire microwave oven. It has an operation panel for manipulating the operation of. Electromagnetic waves generated by the magnetron are supplied into the cooking chamber, and cooking of food contained in the cooking chamber is performed by the electromagnetic waves.

In the cooking chamber, a tray for placing food and a lamp for illuminating the inside of the cooking chamber are usually installed. The tray rotates the food at low speed during the operation of the marnetron, so that the electromagnetic waves are evenly projected onto the food, and the lamp illuminates the inside of the cooking chamber during the operation of the microwave oven so that the user can check the cooking status inside the cooking chamber from the outside. do. In addition, the lamp is turned on when the door to open and close the cooking chamber of the microwave oven serves to facilitate the operation of the user accepts food in the cooking chamber or take out the cooked food from the cooking chamber.

However, in the conventional microwave oven, the lamp simply includes a role of illuminating the cooking chamber and sterilizing the dishes, but it is difficult to determine whether the dishes have been sterilized after a long time after being left in the cooking chamber after sterilization. Problems often occurred.

Thus, the present invention was created to solve the above problems, the present invention is to determine whether the sterilized dishes in the cooking chamber by setting the lock mode to stop the execution of all modes when the sterilized dishes remain in the cooking chamber by It is an object of the present invention to provide a method for sterilizing a microwave oven having an ultraviolet germicidal lamp which can further improve the functionality of the microwave oven by recognizing whether the dishes in the cooking chamber are sterilized.

Sterilization method of a microwave oven having an ultraviolet germicidal lamp according to the present invention for achieving the above object,

The microwaves generated by the magnetron and the high heat generated by the heater are projected into the cooking chamber to cook the food contained in the cooking chamber, and after sterilizing the sterilization including the cooking utensils using ultraviolet rays using an ultraviolet sterilization lamp, the sterilization product is finished sterilization. In the sterilization method of the microwave oven having an ultraviolet germicidal lamp comprising a control unit having a program for recognizing the presence or absence of the user,

The program,

a) outputting an initial value by sensing the weight of the dishes in the cooking chamber when the sterilization key is input;

b) executing the sterilization operation, and after sensing the sterilization operation, detecting the weight of the dishes in the cooking compartment and outputting a first current value;

c) performing a lock mode after first comparing the initial value with the current value, indicating that there is dishware in the cooking compartment when the initial value is larger than the first present value; And

d) It is determined whether the door is opened, and if it is determined that the door is opened, the weight of the tableware in the cooking chamber is sensed to output a second current value, and the initial value is smaller than the current value by comparing the second current value with the initial value. If the lock mode is characterized in that the order consisting of steps.

According to the present invention, the user can recognize whether the tableware in the cooking chamber is sterilized and can further improve the functionality of the microwave oven.

1 is a view showing the front of the microwave oven to which the present invention is applied.

Figure 2 is a diagram showing the configuration of a microwave oven having an ultraviolet germicidal lamp to which the present invention is applied.

FIG. 3 is a flowchart illustrating a process of notifying replacement time of an ultraviolet germicidal lamp in FIG. 2.

<Explanation of symbols for main parts of drawing>

101: operation panel 103: door sensor

105: control unit 107: UV germicidal lamp

109: high voltage generator 111: drive motor

113: tray

Hereinafter, the present invention will be described in more detail with reference to the following examples.

1 is a front view of a microwave oven to which the present invention is applied. Referring to FIG. 1, the microwave oven to which the present invention is applied includes a main body 1 forming an appearance by forming a cooking chamber 5 and a front surface of the main body 1 to control the operation of the microwave oven by external operation. And an operation panel 7 which provides an operation unit, wherein the operation panel 7 includes a plurality of keys including a start key K1, a time setting key K2, a sterilization key K3, and the like.

In addition, a tray for placing food is installed inside the cooking chamber 5, and a driving motor (not shown) for rotating the tray at a low speed is installed at a lower portion of the tray.

The front door of the cooking chamber 5 is installed, the hook 3 is installed on the inner wall surface of the door 3 and the hook groove 4 is installed to the main body is installed so as to be mutually coupled, hook groove 4, a book sensor (not shown) is installed to detect the opening and closing state of the door by detecting it when the hook 3 is inserted.

In addition, an ultraviolet germicidal lamp 11 that emits ultraviolet rays into the cooking chamber 5 is installed at an upper portion of the main body 1 forming the cooking chamber 5, and the ultraviolet rays of the ultraviolet germicidal lamp 11 serve as a cooking utensil. Carry out the sterilization function of the sterilization product.

Figure 2 is a block diagram showing the configuration of the microwave oven of Figure 1 having an ultraviolet germicidal lamp to which the present invention is applied. The microwave oven having an ultraviolet germicidal lamp according to the present invention with reference to the operation panel 101 including a start key (K1), a timer (K2), and a sterilization key (K3) for selecting the function of the microwave oven; In accordance with the selection of the door sensor 103 for detecting the opening and closing of the door of the microwave oven, the detection signal of the door sensor 103, and the start key K1 and the timer K2 of the operation panel 101. Control signal of the control unit 105 which controls the cooking operation of the control unit and controls the sterilization operation of the microwave oven according to the selection of the sterilization key K3 and the control unit 105 which is generated according to the selection of the sterilization key K3. UV sterilization lamp 107 is turned on and receives the high-pressure generator 109 for generating a high voltage for generating electromagnetic waves in response to the control signal of the controller 105 generated in accordance with the selection of the start key (K1) and The controller 105 generated according to the selection of the start key K1. It receives a control signal of the rotation includes a drive motor 111 for rotating the tray 113 at low speed.

The controller 105 determines whether the sterilized tableware is in the cooking chamber by comparing the initial weight with the current weight after sterilization, and sets the lock mode to stop execution of all modes when the sterilized tableware remains in the cooking chamber. Have more programs In the embodiment of the present invention has been described the case of sterilization by placing the tableware on the tray, it may be a sterilizable article including a milk bottle and dishcloth.

In the microwave sterilization apparatus having an ultraviolet sterilization lamp according to the present invention configured as described above, the user opens the door 2 to cook food, and then put the food to be cooked on the tray 9, the door (2) When closing, the door sensor 103 recognizes that the hook 3 and the hook groove 4 are inserted.

Then, the cooking operation, cooking intensity, cooking time, etc. are set through the operation panel 7. Here, when the start key K1 is input, the controller 105 controls the power to be provided to the high voltage generator 109, whereby the high voltage generator 109 generates a high voltage, and the high voltage is provided to the magnetron. Therefore, the magnetron generates electromagnetic waves. This electromagnetic wave is supplied to the food placed on the tray 9 rotating at a low speed by the drive motor, and the food is cooked by the electromagnetic wave. At this time, the cooking time and the cooking intensity are determined by the operation of the operation panel 7.

However, when the sterilization key K3 is operated after placing the dish to be sterilized on the tray 9 by the user, the control unit 105 calculates the weight of the dish placed on the tray 9 for sterilization and a first value. Outputs Thereafter, the control unit 105 generates a first control signal for turning on the ultraviolet sterilization lamp 107, and the ultraviolet sterilization lamp 107 which has received the first control signal is turned on and sterilized.

On the other hand, when the sterilization of the UV sterilization lamp is completed after the predetermined time has elapsed, the controller 105 calculates the weight of the tableware on the tray 9 on which sterilization is completed, and outputs a first current value. If the initial value is larger than the current value by comparing the first present value, the display device indicates that the sterilized tableware is in the cooking chamber 5 by using the display device of the operation panel 101 and then stops the execution of all modes. Set it.

Then, when the door opening is detected by the door sensor 103, the control unit 105 receiving the door opening detection signal calculates the weight of the dishes placed on the tray 9 in the cooking chamber 5 to output the second current value. When the initial value is greater than the second current value by comparing the initial value with the second current value, the lock mode is released.

3 is a flowchart showing a sterilization process according to the present invention. Referring to Figure 3 describes the sterilization process according to the present invention.

When the sterilization key K3 is operated after placing the dish to be sterilized on the tray 9 by the user (step 301), the controller 105 calculates the weight of the dish placed on the tray 9 for sterilization. The initial value is output (step 303). Thereafter, the control unit 105 generates a first control signal for turning on the ultraviolet sterilization lamp 107, and the ultraviolet sterilization lamp 107 which has received the first control signal is turned on and sterilized.

On the other hand, when the sterilization of the UV sterilization lamp is completed after the predetermined time has elapsed (step 305), the controller 105 calculates the weight of the tableware on the tray 9 which has been sterilized and outputs a first current value ( In step 307, the initial value and the first present value are compared (step 309).

If the initial value is greater than the current value in step 309, the display device of the operation panel 101 indicates that the sterilized tableware is in the cooking chamber 5 (step 311), and then locks all modes. Is set (step 313).

Thereafter, when the door opening is detected by the door sensor 103 (step 315), the control unit 105 which receives the door opening detection signal calculates the weight of the tableware placed on the tray 9 in the cooking chamber 5 to obtain a second weight. The current value is output (step 317) and the initial value is compared with the second current value (step 319).

If the initial value is greater than the second current value in step 319, the lock mode is terminated (step 321) and the program ends.

If it is determined in step 301 that the door closing and start keys K1 have not been pressed, it is checked whether another key is input (step 323), and if it is determined that another key is input, the selected mode is executed (step 325). Exit the program.

According to the present invention, by determining whether the sterilized tableware is in the cooking chamber and setting the lock mode to stop execution of all modes when the sterilized tableware remains in the cooking chamber, the user recognizes whether the tableware in the cooking chamber is sterilized. It is possible to obtain an effect of further improving the functionality of the microwave oven.

In addition, although the present invention has been described in detail with reference to the embodiments described above, the present invention is not limited thereto, and modifications and improvements are possible within the scope of ordinary knowledge of those skilled in the art.

Claims (1)

The microwaves generated by the magnetron and the high heat generated by the heater are projected into the cooking chamber to cook the food contained in the cooking chamber, and after sterilizing the sterilization including the cooking utensils using ultraviolet rays using an ultraviolet sterilization lamp, the sterilization product is finished sterilization. In the sterilization method of the microwave oven having an ultraviolet germicidal lamp comprising a control unit having a program for recognizing the presence or absence of the user, The program, a) detecting the weight of the object placed on the tray and outputting an initial value when a sterilization key is input; b) executing the sterilization operation and detecting a weight of the article placed on the tray after the sterilization operation is completed and outputting a first present value; c) performing a lock mode after first comparing the initial value with the current value to indicate that an object is present in the cooking compartment when the initial value is larger than the first current value; And d) It is determined whether the door is opened, and if it is determined that the door is opened, the weight of the object on the tray is sensed to output a second current value, and the initial value is smaller than the current value by comparing the second current value and the initial value. If the sterilization method of the microwave oven having an ultraviolet germicidal lamp, characterized in that the step of canceling the lock mode.