KR19990033673A - How to control power saving mode of microwave oven - Google Patents

Abstract

The disclosed microwave oven relates to a method for controlling a power saving mode of a microwave oven, which enables a lamp to be turned on / off as necessary when cooking food. The present invention provides a microwave control method for cooking food by using a microwave oven, so that the lamp is turned on until the cooking operation is completed. Take control. Here, the lamp is preferably turned on for a predetermined time stored in advance immediately after opening and closing the door of the microwave oven, and the lamp is preferably turned on for a predetermined time stored when the lighting switch is input. Therefore, unnecessary power consumption is prevented by appropriately controlling the lighting and turning off of the lamp.

Description

How to control power saving mode of microwave oven

The present invention relates to a microwave oven, and more particularly, to a power saving mode control method for a microwave oven, which enables to turn on / off a lamp that is always turned on inside a cooking chamber when cooking food.

In general, a microwave oven is a heating apparatus for cooking food using microwaves, and as shown in FIG. 1, the cabinet 60, which is divided into left and right spaces to form an appearance of the microwave oven, has a front opening at one side. 52 is provided, and the apparatus room 54 in which various circuit devices are provided on the other side is provided.

In addition, the door 62 which opens and closes the front open portion in the state where the cooking chamber 52 is formed as described above, and the rotary plate 64 on which the food to be cooked are placed are rotatably installed. The rotating plate 64 is provided with a motor and various gears (not shown) at the bottom thereof and is configured to rotate the rotating plate 64 when cooking.

In addition, the device chamber 54 is electrically connected with a magnetron (MGT), a high-voltage transformer (HVT), a high-pressure capacitor (HC) for generating microwaves, and a cooling fan (FAN) for cooling the magnetron (MGT), and the like. The front panel is provided with an operation panel 66 for operating these devices and displaying their status.

The cooling fan (FAN) is forcibly blown air to cool the magnetron (MGT), and the air guide 50 to guide the heated air to the cooking chamber 52 through the heat exchange effect is a cabinet 60 ) Is provided on one side. Here, a lamp (not shown) is provided inside the air guide 50 to illuminate the inside of the cooking chamber 52 when the magnetron (MGT) is driven so that the user can check the state of the inside of the cooking chamber 52.

In the conventional microwave oven configured as described above, as the door 62 is opened from the cabinet 60, a lamp (not shown) inside the air guide 50 is turned on, and food is contained through the front of the cabinet 60. The cooking vessel enters and leaves the cooking chamber 52, and the cooking vessel is placed on the upper portion of the rotating plate 64.

Subsequently, when the door 62 is closed, the lamp (not shown) is temporarily turned off, and the microwave oven is operated according to the operation of the operation panel 66. That is, the user starts cooking after setting the desired cooking temperature and time, at which time the lamp (not shown) is turned on again.

That is, the commercial AC power input from the outside is supplied to the magnetron (MGT), the high pressure capacitor (HC) and the high voltage diode (HD) through the high voltage transformer (HVT) shown in Figure 1, and thus from the magnetron (MGT) Usually, microwaves of 2450 MHz are generated and emitted into the cooking chamber 52, whereby food is heated and cooked. In addition, a lamp (not shown) inside the air guide 50 communicating with the cooking chamber is turned on, and a cooling fan 32 for cooling the magnetron (MGT) and a rotating plate 64 on which food is placed are rotated and cooked. Efficiency is improved.

On the other hand, the user selects a desired menu through the operation panel 66, and the cooking temperature and time according to this menu are automatically set / controlled so that the cooking operation may be performed. Here, the microcomputer (not shown) reads information such as temperature and time from the data storage unit (not shown) to control the cooking operation, and accordingly, a predetermined cooking process is performed, which is performed on one side of the operation panel 66. The same cooking settings and progress status are displayed to inform the user.

However, the conventional microwave oven as described above is applied to a lamp of the 230V 40W rating as a lamp for illuminating the cooking chamber therein, such lamps are generally always lit until the end of cooking in addition to opening the door, so unnecessary power There was a problem that was exhausted.

The present invention has been made to solve the above-mentioned disadvantages of the present invention, an object of the present invention is to prevent unnecessary power consumption by turning on / off a lamp that is always lit inside the cooking chamber as needed when cooking food. The present invention provides a method for controlling a power saving mode of a microwave oven.

1 is a perspective view showing the appearance and mounting state of each component of a typical microwave oven,

2 is a circuit diagram illustrating the present invention;

3a and 3b is a control flowchart showing a preferred embodiment of a power saving mode control method of a microwave oven according to the present invention.

Explanation of symbols on the main parts of the drawings

10: switch input unit 11: the start switch

15: power saving mode switch 16: light switch

20: microcomputer 30: load driving means

31: magnetron driving unit 32: light driving unit

40: display unit

In the microwave control method of the microwave power saving mode control method according to the present invention for realizing this, while cooking food using a microwave, the lamp is turned on until the cooking operation is finished, It is possible to control the lighting and turning off of the lamps according to the needs of the user when cooking.

To this end, it is preferable that the lamp is turned on for a predetermined time stored in advance immediately after opening and closing the door of the microwave oven, and the lamp is preferably turned on for a predetermined time stored in advance when a lighting switch is input.

In addition, the first step of turning on the lamp when the door is opened, and determines whether the start switch is input when the door is not opened; A second step of turning off the lamp when the start switch is not input by the first step, driving the magnetron when the start switch is input, and determining whether to enter a power saving mode; A third step of turning on the lamp until the end of cooking in the non-power saving mode by the second step, turning on the lamp for a predetermined time stored in the power saving mode and determining whether a lighting switch is input; When the lighting switch is input by the third process, it is determined again whether the lighting switch has been continuously input for a predetermined time or more. If the lighting switch is continuously input for more than a predetermined time, the lamp is turned on only while the lighting switch is being input. A fourth step of turning on the lamp for a predetermined time when not input; And a fifth process of determining whether the cooking switch is completed and returning to the third process when the cooking is not finished, determining whether a lighting switch is input, and stopping the magnetron and turning off the lamp when the cooking is finished. .

Accordingly, when cooking food, unnecessary power consumption is prevented by turning on / off a lamp that is always lit inside the cooking chamber as needed.

Hereinafter, a preferred embodiment of a power saving mode control method of a microwave oven according to the present invention will be described in more detail with reference to the accompanying drawings, the same components as in the prior art will be described with the same reference numerals.

FIG. 2 is a circuit diagram illustrating the present invention, and FIGS. 3A and 3 are flowcharts illustrating a preferred embodiment of a method for controlling a power saving mode of a microwave oven according to the present invention.

As shown, the switch input unit 10 operated by the user includes a start switch 11, a menu selection switch 12, a temperature setting switch 13, and a time setting switch 14 and a power saving mode switch ( 15) and a lighting switch 16 are further provided, and the switch input unit 10 is formed in the operation panel 66 shown in FIG.

In addition, according to the switch operation of each switch input unit 10 described above, a microcomputer 20 for controlling the driving of various loads for a cooking operation is provided, and the microcomputer 20 is stored in advance from a data storage unit (not shown). Information, for example, cooking temperature, cooking time and the like. The data storage unit (not shown) is preferably configured as a buffer provided in the microcomputer 20 or a read only memory (ROM).

In addition, a load driving means 30 which is driven by the microcomputer 20 to perform a cooking operation is provided. The load driving means 30 includes a magnetron driving unit 31 for driving the magnetron (MGT) to generate microwaves, an illumination driving unit 32 for turning on / off a lamp (not shown) of the cooking chamber, and a rotating plate 64. It comprises a rotary plate drive unit 33 for rotating, and a fan drive unit 34 for driving the cooling fan (FAN).

Here, the magnetron driver 31 generates microwaves of 2450 MHz in general through circuit elements such as the high voltage transformer (HVT), the high voltage diode (HD), the high voltage capacitor (HC), and the magnetron (MGT) shown in FIG. 1. It is discharged to the inside of the cooking chamber 52, together with the high heat generated in the magnetron (MGT) is forcedly cooled by the cooling fan (FAN) as described above. In addition, the display unit 40 for displaying the cooking state as described above is preferably formed in the operation panel 66 shown in FIG. 1 together with the switch input unit 10 described above.

The operation of the present invention configured as described above will be described in more detail with reference to FIGS. 3A and 3B.

First, as the door 62 is opened from the cabinet 60, a cooking container containing food through the front of the cabinet 60 enters and leaves the cooking chamber 52. At this time, the microcomputer 20 turns on the lamp when the door 62 is opened as the first process (S101 to S102).

Accordingly, the user places the cooking vessel on the upper side of the rotating plate 64 while checking the inside of the cooking chamber 52 and closes the door 62. Here, the user sets the desired cooking temperature and time using the temperature setting switch 13 and the time setting switch 14, and turns on the start switch 11 to start cooking.

Thereafter, the microcomputer 20 determines whether the start switch 11 is input (S103), and turns off the lamp when the start switch 11 is not input (S104). On the other hand, when the start switch 11 is input, a second process of driving the magnetron (MGT) according to the cooking temperature and cooking time and determining whether to save power is performed (S105 to S106).

Here, the action of the load driving means 30 for driving the magnetron (MGT), the rotary plate 64, the lamp (not shown) and the fan (FAN) and the like to perform the cooking operation of the microwave is shown in FIG. As described above in detail, the detailed description thereof will be omitted.

Thereafter, when the power saving mode is not input by the second process, that is, when the power saving mode switch 15 is not input, the lamp is turned on until the cooking is finished (S107). On the other hand, in the power saving mode, a third process of lighting the lamp for a predetermined time (60 seconds) stored in advance and determining whether the lighting switch 16 is input is performed (S108 to S111). In this case, the lamp is turned off after being turned on for only 60 seconds in the state where the first cooking is started, and then turned on depending on whether the lighting switch 16 is input.

Therefore, when the lighting switch 16 is input by the third process, it is determined again whether the lighting switch 16 has been continuously input for more than a predetermined time (1 second), and when it is continuously input for more than a predetermined time (1 second). The lamp is turned on only while the above lighting switch 16 is input (S112 to S114), and when the lamp is not continuously input for a predetermined time (1 second), the lamp is turned on for a predetermined time (30 seconds), The fourth process of turning off again is performed (S115 to S117).

Thereafter, the microcomputer 20 determines whether the cooking is finished, and when the cooking is not finished, the microcomputer 20 returns to the third process S111 to determine whether the lighting switch 16 is input, and when the cooking is finished, the load driving means ( By performing the fifth process (S118-S120) to stop the various loads including the magnetron (MGT) and turn off the lamp through 30), a power saving function of turning on or turning off the lamp as necessary is performed.

As described above, according to the method for controlling the power saving mode of the microwave oven according to the present invention, there is an effect of preventing unnecessary power consumption by turning on / off a lamp that is always lit inside the cooking chamber as needed when cooking food. .

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (4)

In the microwave control method for cooking food using a microwave oven, the lamp is turned on until the cooking operation is finished, The method of controlling the power saving mode of a microwave oven, characterized in that the control of lighting and turning off of the lamp according to the needs of the user during cooking. The method of claim 1, wherein the lamp is turned on for a predetermined time stored immediately after opening and closing the door of the microwave oven. The method of claim 1, wherein the lamp is turned on for a predetermined time stored when the lighting switch is input. A first step of turning on a lamp when the door is opened and determining whether a start switch is input when the door is not opened; A second step of turning off the lamp when the start switch is not input by the first step, driving the magnetron when the start switch is input, and determining whether to enter a power saving mode; A third step of turning on the lamp until the end of cooking in the non-power saving mode by the second step, turning on the lamp for a predetermined time stored in the power saving mode and determining whether a lighting switch is input; When the lighting switch is input by the third process, it is determined again whether the lighting switch has been continuously input for a predetermined time or more, and when the lighting switch is continuously input for more than a predetermined time, the lamp is turned on only while the lighting switch is being input, A fourth step of turning on the lamp for a predetermined time when not input; And If the cooking is not finished, if the cooking is not finished, go back to the third process to determine whether the light switch is input, and when the cooking is finished, the magnetron is stopped and the fifth process to turn off the lamp Power saving mode control method of the microwave oven.