KR19990058220A - How to choose the function of the microwave oven - Google Patents

Abstract

The present invention relates to a method of selecting a function of a microwave oven. In the related art, various functions of a microwave oven are represented by a jumper on a PCB or a key on a key matrix so that a user can select each function. In order to provide a key for each function, the number of keys increases and a lot of space is required on the hardware.

Therefore, according to the present invention, when a function selection key is pressed, a function selection mode is entered and a function can be selected by inputting a predetermined number for each item so that one function selection key and a number are not installed. Since the function can be selected by input, it is a useful invention to reduce the number of keys to be provided in the key matrix, save the capacity of the microcomputer, and add other additional functions.

Description

How to choose the function of the microwave oven.

The present invention relates to a method for selecting a function of a microwave oven, and more particularly, when a function selection key is pressed, a function selection mode is entered, and a separate key for each function can be selected by inputting a predetermined number for each item. It is possible to select a function by inputting a function selection key and a number without installing the present invention, and thus the function selection method of the microwave oven enables to reduce the number of keys to be provided in the key matrix and add other additional functions to the microcomputer.

In general, a microwave oven is a device that heats food by high frequency, and a magnetron is installed in one electric field chamber, and the high frequency generated from the magnetron is configured to be irradiated into the cooking chamber through a waveguide, and a cooking vessel is provided at the bottom of the cooking chamber. Is provided with a tray on which a tray motor capable of rotating the tray is installed at the lower part of the tray, and the cooking vessel placed thereon is rotated along the tray, so that the high frequency radiated to the cooking chamber is evenly transmitted to the food in the container. And uniformly heated.

In addition, the microwave oven is a single function microwave that defrosts or cooks food using only the high frequency oscillated from the magnetron, and a grill or oven dish in addition to the cooking due to the high frequency by installing a heater or a convection pan at the top of the cooking chamber. It is divided into multifunctional microwave oven.

In addition, as described above, the microwave oven is divided into a single function and a multi-function control panel is installed on one side of the front panel of the electrical room to adjust the strength of the high frequency or heater according to the amount of food and to select the operating time appropriately. The control panel is composed of a membrane keyboard, an adjustment knob, a door open button, and a display window for displaying the operation status and set functions of the microwave oven.

And microwave ovens can be divided into mechanical and electronic according to the input device installed on the control panel, in the case of the mechanical microwave oven by installing a timer knob and an output control knob in the control panel, the user can arbitrarily In case of electronic type, the membrane keyboard is installed and the cooking name and cooking time can be input arbitrarily and the start key can be cooked manually or the cooking name can be selected by pressing the start key. It is a method of cooking automatically according to the set cooking time.

The membrane keyboard is attached to the control panel of the electronic device as various function key input devices. When the function keys of the keyboard are selected and pressed, the contacts of the circuit pattern are contacted by the pressure, and the function signals are transmitted to the microcomputer. A keyboard that is intended to perform accordingly.

In the case of the electronic microwave oven equipped with such a membrane keyboard, a microcomputer can be used for automatic cooking. In the membrane keyboard on the control panel, keys, numeric keys, start keys, A cancel key or the like is formed in a matrix to take the interface between the microcomputer and the user.

The microcomputer, the key matrix, and the display are connected to each other through a port, and the microcomputer receives the input of a predetermined key of the key matrix through the port and performs a function according to the predetermined key, particularly in the case of weight selection or cooking time selection. The display is controlled and displayed on the display as a number.

On the other hand, various functions including weight are represented by jumper on PCB or key on key matrix. In order to satisfy various functions, keys must be provided for each function, so the number of keys increases and a lot of space on hardware. Needed.

Accordingly, an object of the present invention is to solve the above problems, and by installing a function selection key on a key matrix to select each function with one function selection key, the number of keys on the key matrix is reduced and the capacity of the microcomputer is reduced. The present invention provides a method of selecting a function of a microwave oven that can save money.

The object of the present invention as described above is to press the function selection key provided in the key matrix on the control panel and press a number key corresponding to the item to be selected to select the desired item, and press the number key again in each state selection step for each item This is achieved by allowing you to select the desired state for each item.

The present invention can achieve the above object by reducing the number of keys on the key matrix and saving the capacity of the microcomputer by implementing selection functions that have been difficult to implement with a single key in a function selection key.

1 is a schematic view showing the present invention.

Figure 2 is a schematic diagram showing the operation procedure of the function selection method of the microwave oven according to the present invention.

3 is a flowchart illustrating a function selection method of a microwave oven to which the present invention is applied.

Explanation of symbols for main parts of the drawings

100: micom 200: key matrix

210: Function selection key 220: Numeric key

300: display unit 400: operation unit

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a schematic diagram showing a microwave oven to which a function selection method of the microwave oven according to the present invention is applied. As shown in the drawing, the present invention provides a function selection mode to the microcomputer 100 controlling each function of the microwave oven. A function selection key 210 for transmitting a signal for setting, a key matrix 200 having a numeric key 220, a display unit 300 for displaying various functions and numbers under the control of a microcomputer, The operation unit 400 driven by the control of the microcomputer is configured by electrically connecting to the microcomputer 100.

FIG. 2 is a block diagram schematically illustrating an operation procedure of a function selection method of a microwave oven to which the present invention is applied. As shown in the drawing, the present invention sets a function selection mode set by an input of a function selection key 210. In the step 10 and the function selection mode, the item selection step 20 of selecting an item by pressing a number key corresponding to each item, and the state by pressing a number key corresponding to a desired state in the item selected by the step 20 It is characterized by consisting of a state selection step 30 for each item to select.

3 is an embodiment to which the present invention is applied to input a number for item selection in the microcomputer, '1' is the weight unit selection, '2' sound on / off selection, '3' clock function on / off selection, '4' selects demo mode on / off, '5' selects lock on / off, '6' selects tray rotation or not, and inputs into Micom. '1' is on even when selecting status for each item. '2' is set to OFF, and then the present invention is applied as follows.

That is, as shown in FIG. 3, if a numeric key is input after a function selection key is input, determining whether the input numeric key is 1 (S10, S11, S20), and the input key is 1. In step S21, S22, inputting a numeric key for mode selection and determining whether the input numeric key is 1, and if the input number key for mode selection is 1, sets the mode to gram (g), and 1 is set. Or setting the pound (lb) mode (S23, S24), determining whether the numeric key input in S20 is 1 or 2 (S30), and when the input numeric key is 2, for mode selection Entering a numeric key, judging whether the input numeric key is 1 (S31, S32), if the numeric key input for mode selection is 1, the sound is turned on (ON), and if it is not 1, the sound is turned off ( OFF) (S33, S34), and the step (S40) of determining whether or not the number key input in S30 is 3 (S40). If the input key is 3, input a numeric key for mode selection, and determining whether the input numeric key is 1 (S41, S42); if the selected mode is 1, turn on the clock function; Step (S43, S44) to turn off the function, and if the numeric key input in S40 is not 3 (S50) and if the input numeric key is 4, enter the mode selection numeric key and input the numeric keys Determining whether S is 1 (S51, S52); if the selected mode is 1, turning on the demo mode; otherwise, turning off the demo mode (S53, S54); Or determining whether it is 5 (S60), if the input number key is 5, inputting a mode selection numeric key and determining whether the input number key is 1 (S61, S62), and if the selected mode is 1 Turning on the protective lock, if not 1 off the child protection lock (S63, S64) and S60 Step (S70) of determining whether the input numeric key is not 5 (6), and if the input numeric key is 6, inputting a mode selection numeric key and determining whether the input numeric key is 1 (S71, S72). If the selected mode is 1, the turntable is rotated, and if not, the turntable is fixed (S73, S74).

3, step S10 corresponds to the function selection mode setting step 10 of FIG. 2, and steps S20, S30, S40, S50, S60 and S70 correspond to the item selection step 20. , S21, S31, S41, S51, S61, and S71 correspond to the state selection step 30 for each item.

The present invention installs the function selection key 210 on the key matrix 200, and when the function selection key 210 is pressed to make the microcomputer 100 and the display unit 300 in the function selection mode, the function selection mode When the numeric key 220 is pressed in the state, the selected item corresponding to the number is selected and input to the microcomputer 100, and the item corresponding to the display unit 300 is displayed, and the numeric key under the state selection mode for each item is displayed. Press 220 to store the desired state for each item in the microcomputer 100, and display the selection on the display unit 300 for a few seconds to initialize.

As described above, the present invention allows the user to enter a function selection key to enter the function selection mode, and to input the item to be selected in the function selection mode and the selection state for each item through the numeric keys. This is a useful invention that allows you to reduce the number of keys in the matrix, save the capacity of your microcomputer, and add other additional features.

Claims (1)

Step 10, in which the function selection mode is set when a predetermined key on the key matrix is pressed, an item corresponding to the number is selected when the number key is pressed in the function selection mode, and the step 20 selected in step 20 The method of selecting a function of the microwave oven, characterized in that the step (30) is selected if the item key corresponding to the number is pressed under the item.