KR19990060092A - Driving control method of microwave oven - Google Patents

Abstract

The disclosed microwave oven relates to a driving control method of a microwave oven, which enables a restart and cancellation function to be conveniently performed when the door is opened and closed while driving. The present invention has a start key and a cancel key, and in a microwave oven for cooking food by driving or stopping a load according to an input thereof, detecting whether the door of the microwave oven is opened while cooking is started and the load is driven. And a second process of stopping the driving of the load and detecting whether the door is closed when the door is opened by the first process, and continuing to stop the driving of the load if the door is not closed. When the door is closed by the process of determining the key input, if any other key other than the cancel key is input, the third process of restarting the load and ending the cooking of food, the third process Fourth to end cooking when any other key other than the cancel key is not input by The process further includes. Therefore, it is possible to conveniently perform the restart and cancel function when the door is opened and closed while the microwave oven is being driven.

Description

Driving control method of microwave oven

The present invention relates to a microwave oven, and more particularly, to a driving control method of a microwave oven, which can conveniently perform a restart and cancellation function when the door is opened and closed while the microwave oven is being driven.

In general, a microwave oven supplies microwaves with high-pressure power to emit microwaves, and the microwaves are supplied to a cooking chamber to vibrate moisture contained in food. Therefore, the food is cooked by the molecular frictional heat generated by the vibration of the water molecules.

In addition, these microwave ovens use a high pressure transformer for generating high pressure. Therefore, by using this high voltage transformer, the commercial AC voltage of 120 / 230V is boosted by a high voltage power supply and supplied to the magnetron to generate microwaves of high frequency (2450MHz). Such microwave and high voltage power supply is dangerous in use, so a conventional microwave oven suspends the operation of the microwave oven when the door is opened, and restarts the microwave oven when the door is closed.

1 is a partially cutaway perspective view of a typical microwave oven. According to FIG. 1, the cabinet 1, which is divided into left and right spaces and forms an appearance of a microwave oven, has a cooking chamber 2 having an open front at one side thereof, and an apparatus chamber 3 having various circuit devices installed at the other side thereof. Prepared. In addition, the door 4 that opens and closes the front of the cooking chamber 2 is rotatably fixed to one side of the cabinet 1. The cooking chamber 2 is provided with a rotary plate 5 on which the food to be cooked is placed on its bottom surface, and the rotary plate 5 is provided with a motor and gears (not shown) at the bottom thereof. 5) to rotate. Meanwhile, the apparatus chamber 3 is provided with a magnetron 6 for generating microwaves, a high voltage transformer 7, a high pressure capacitor 8, and a cooling fan 9 for cooling the magnetron 6. Connected. Here, the cooling fan 9 forcibly blows air to cool the magnetron 6.

2 is a flowchart illustrating a driving control method of a conventional microwave oven. 1 and 2, in the conventional microwave oven, food is introduced into and out of the cooking chamber 2, and then cooking is started in a state in which the door 4 is closed (S101). That is, the user sets a desired cooking temperature and time using various operation keys, and inputs a start key to operate the magnetron 6 and the cooling fan 6, which are loads of the microwave oven, to start cooking. (S102).

On the other hand, when the door 4 of the microwave oven is opened while cooking is performed in this manner, the magnetron 6 and the cooling fan 9 are stopped for safety, and thus the cooking operation is temporarily stopped (S103 to S104). Thereafter, when the start key is input while the door 4 is closed, the magnetron 6 and the cooling fan 9 are driven to restart the cooking operation, thereby allowing the user to complete cooking of the desired food. (S105 to S108).

However, such a conventional microwave driving method has a cumbersome problem of selecting and entering only the start key to restart the microwave oven in which the cooking operation is suspended when the door is opened and closed during cooking as described above. .

The present invention has been made to solve the conventional problems as described above, an object of the present invention, a microwave oven that can conveniently perform a restart and cancellation function when the door is opened and closed while driving the microwave oven. To provide a drive control method of the.

1 is a partially cutaway perspective view of a typical microwave oven,

2 is a flowchart illustrating a driving control method of a conventional microwave oven;

3 is a control block diagram showing a circuit configuration of a microwave oven for explaining the present invention;

4 is a flowchart showing a preferred embodiment of a drive control method for a microwave oven according to the present invention.

Explanation of symbols on the main parts of the drawings

10: key input unit 11: start key

12: temperature setting key 13: time setting key

14: Menu selection key 15: Cancel key

20: microcomputer 30: magnetron drive unit

40: fan drive unit 50: display unit

A characteristic of the driving control method of the microwave oven according to the present invention for realizing this is, in the microwave oven which has a start key and a cancel key and performs cooking of food by driving or stopping a load according to its input, cooking starts. The first process of detecting whether the door of the microwave oven is opened while the load is being driven, and if the door is opened by the first process, stopping the driving of the load and detecting whether the door is closed, but the door is not closed. If the door is closed by the second process and the second process of stopping the driving of the load, the key input is judged, and when any other key except the cancel key is input, the load is restarted and the food is And a third process of terminating cooking, wherein any other key other than the cancel key is not input by the third process. If and when a cancel key is input, further it includes a fourth process to terminate the cooking process.

Therefore, it is possible to conveniently perform the restart and cancel function when the door is opened and closed while the microwave oven is being driven.

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

2 is a control block diagram showing a circuit configuration of a microwave oven for explaining the present invention, Figure 3 is a flow chart showing a preferred embodiment of a drive control method of the microwave oven according to the present invention.

According to Figure 2, the key input unit 10 is operated by the user to set the cooking temperature and time, etc. In addition, to start the operation start command, etc., the start key 11, the temperature setting key 12, the time setting key (13), menu selection keys 14 and cancel keys 15 are provided.

The loads perform heating / cooking operations of the microwave oven, and are composed of a magnetron driver 30 for driving a magnetron, a fan driver 40 for driving a cooling fan, and the like. ) Is provided with a display unit 50 for displaying a setting state or the like. The microcomputer 20 receives an operation command of the key input unit 10 and performs heating / cooking operation by controlling the driving of the loads 30, 40, 50 according to previously stored information.

Referring to Figure 3 the operation of the present invention configured as described in more detail as follows. First, the food is entered into the cooking chamber 2, and then cooking is started in a state in which the door 4 is closed (S201). That is, the user sets the desired cooking temperature and time by using various operation keys of the key input unit 10, and inputs the start key 11 to the magnetron 6, the cooling fan 9, etc., which are loads of the microwave oven. This operation is to start cooking (S202).

Here, the signal of the key input unit 10 is applied to the microcomputer 20 to control the load, the magnetron driver 30, the fan drive unit 40 by operating the food in the cooking chamber 2 to heat / cook do. In addition, the cooking state of such loads and the setting state of the key input unit 10 are displayed to the user through the display unit 50. As described above, in the state in which cooking is started and each load is driven, a first process of detecting whether the door 4 of the microwave oven is opened through the microcomputer 20 is performed (S203).

Therefore, when the door 4 is opened by the first process, the microcomputer 20 stops driving the load through the magnetron driver 30 and the fan driver 40 and detects whether the door 4 is closed. At this time, when the door 4 is not closed, a second process of continuously stopping the driving of the load is performed (S204 to S205).

On the other hand, the microcomputer 20 determines the key input when the door 4 is closed by the second process, but when any other key other than the cancel key 15 is input, the microcomputer 20 restarts the load to provide a predetermined value. After completing the cooking process, a third process of terminating cooking of food is performed (S206 to S207).

In addition, if any other key other than the cancel key 15 is not input by the third process and the cancel key 15 is immediately input, the cooking process is canceled in this state and the cooking is immediately terminated. By performing the fourth process to make the door 4 open and close while the microwave oven is being driven, the restart and cancellation functions can be conveniently performed (S208 to S209).

As described above, according to the driving control method of the microwave oven according to the present invention, there is an effect that it is possible to conveniently perform the restart and cancellation functions when the door is opened and closed while the microwave oven is being driven through a key operation.

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 (2)

In a microwave oven having a start key and a cancel key and to cook food by driving or stopping the load according to the input thereof, A first step of detecting whether the door of the microwave oven is opened while the cooking is started and the load is driven; A second step of stopping the driving of the load and detecting whether the door is closed when the door is opened by the first step, and continuing to stop the driving of the load if the door is not closed; And And determining a key input when the door is closed by the second process, and restarting the load and ending cooking of the food when any other key other than the cancel key is input. A drive control method for a microwave oven. The microwave oven according to claim 1, further comprising a fourth step of terminating cooking when one of the keys other than the cancel key is not input and the cancel key is input by the third step. Drive control method.