KR100210077B1 - Apparatus for indicating turn-over of the cooking food in a microwave oven with built-in a grill heater - Google Patents

Abstract

The present invention relates to a microwave oven with a built-in grill heater, in particular, a microwave oven having a grill heater for heating a food by radiating heat generated by a grill heater, comprising: a timer for counting and outputting time information; Display means for visually displaying a display signal corresponding to the display signal data; and display means for displaying a display signal corresponding to a predetermined time when the grill heater is operated And a control means for controlling the display means to display an instruction message for the turn-over of the food in the form of a display signal when the cooking time has passed, So that the user can easily recognize the instruction message of the turn-over of the food.

Description

Built-in grill heater Built-in microwave oven

The present invention relates to a microwave oven having a built-in grill heater, and more particularly, to a microwave oven having a grill heater for outputting a predetermined cooking turn-over display signal instructing a user to turn over a cooking product, The present invention relates to a cooking water turn-over indicating device for a built-in microwave oven.

Generally, a microwave oven having a built-in grill heater is provided with a grill heater built in the cooking chamber, and a cooking cavity, which is configured to cook both the dielectric heating cooked by the microwave generated from the magnetron and the food by heat radiation of the grill heater, to be.

FIG. 1 is a perspective view of a conventional microwave oven with a built-in grill heater. The food on the turn-table 30 is heated by the heat radiated from the grill heater 20 attached to the inside of the microwave oven.

In addition, by operating the operation unit 40 including a plurality of operation keys, the user inputs a command for a desired operation, and the operation status of the microwave oven and a message to the user are displayed on a liquid crystal display (LCD) Or a visual fluorescent display; 'VFD') or the like, and is displayed by a display signal having the form of a letter, a number, a figure or the like.

On the other hand, when cooking is performed with the grill heater 20, since the food is heated from the surface, it is necessary for the user to turn over the food during cooking in order to uniformly cook the food. In the conventional microwave oven having a built- A predetermined alarm sound (for example, a 'sound') is generated to instruct the user to turn over the food.

However, in the microwave oven, various kinds of alarm sounds are generated depending on the operation state, so that it is difficult for the user to easily distinguish the alarm sound that instructs the turn-over of the food.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a cooking water turn-over indicating device for a microwave oven having a grill heater suitable for visually displaying a message about turn- .

According to an aspect of the present invention, there is provided a microwave oven having a grill heater for heating a food by radiating heat generated by a grill heater, the microwave oven comprising: a timer for counting and outputting time information; Display means for visually displaying a display signal corresponding to the display signal data; and display means for displaying a display signal corresponding to a predetermined time when the grill heater is operated And a control means for controlling the display means to display an instruction message for the turn-over of the food in the form of a display signal when the cooking time has elapsed.

FIG. 1 is a schematic perspective view of a conventional microwave oven with a typical grill heater. FIG.

FIG. 2 is a schematic block diagram of the present invention; FIG.

FIG. 3 is a schematic view of the display shown in FIG. 2; FIG.

FIG. 4 is a flow chart of the operation of the microcomputer shown in FIG. 2; FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10: cooking chamber 70:

20: Grill heater 80: Timer

30: Turn - Table 90: Memory

40, 60: Operation section 110: Microcomputer

50, 100:

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a cooking water turn over indicating device for a microwave oven with a grill heater according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a schematic block diagram of the present invention, which includes an operation unit 60 for outputting an electric key signal corresponding to a plurality of key operations, a weight detection unit 60 for sensing the weight of the food and converting it into electrical data corresponding thereto, A timer 80 that performs counting to provide time information, a memory 90 that stores various types of cooking time data, a driving state of the microwave oven, And a microcomputer (hereinafter, referred to as a 'microcomputer') 110 for controlling the respective components.

The display unit 100 includes a liquid crystal display device or a visible fluorescent display device that outputs a visual display signal in response to a control signal provided from the microcomputer 110.

FIG. 3 is a schematic view of the display unit shown in FIG. 2, in which a Korean phrase ('turn over the food') A indicating the turn-over of the cooking contact is displayed in the form of a character signal ) Was shown.

An operation example of the present invention having the above-described configuration will be described in detail with reference to FIGS. 2 to 4. FIG.

In the initial state, the microcomputer 110 repeatedly determines whether there is an input of a key signal for the iris diaphragm from the operation unit 60 (S1).

In step S1, when the key signal for the aperture stop of the grill heater is inputted from the operation unit 60, the microcomputer 110 resets the timer 80 and starts counting (S2).

The microcomputer 110 detects the weight data of the food detected by the weight detecting unit 70 and the cooking time of the grill heater corresponding to the weight data detected by the weight detecting unit 70 from the memory 90 is recorded And detects predetermined reference time data (S4)

The microcomputer 110 detects the counted time from the timer 80 (S5) and determines whether the counted time is equal to or longer than the reference time (S6). If the result of the determination in step S6 is NO, the microcomputer 110 proceeds to step S5 in which the time counted from the timer 80 is detected.

If the result of the determination in step S6 is YES, the microcomputer 110 detects the character signal data of the predetermined phrase indicating the turn-over of the food in the memory 90 (S7 ).

The microcomputer 110 repeatedly outputs control signals (for example, 8-bit digital signals) corresponding to the character signal data to the display unit 100 several times at predetermined intervals (S8). As shown in FIG. 3, the character signal of the phrase 'please turn the food over' is displayed on the display unit 100 for a predetermined number of times.

After the above step S8 is performed, the microcomputer 110 repeatedly determines whether the key signal for the iris of the grill heater is inputted from the operation unit 60, and the main power is applied The above-described control operation is repeatedly performed.

In the above-described embodiment, the display signal indicating the turn-over of the food is displayed in the form of a character signal. However, those skilled in the art will appreciate that the display signal indicating the turn- It will be easily understood that the present invention is also applicable to the case of displaying in the form of a graphic signal.

In the above-described embodiment, the microcomputer detects the cooking time of the grill heater corresponding to the weight of the food. However, the skilled person will appreciate that the weight of the food, It will be easily understood that the present invention is easily applied even when the cooking time of the grill heater corresponding to the type is detected.

As described above, according to the cooking water turn-over indicating device of the microwave oven with a built-in grill heater of the present invention, since the instruction message for the turn-over of the food is visually displayed, the user can notify the turn- There is an effect that can be easily perceived.

Claims (3)

A microwave oven having a built-in grill heater for heating a food by radiating heat generated by a grill heater, comprising: a timer for counting and outputting time information; A memory for storing predetermined display signal data in which an instruction message for the turn-over of the food is recorded; Display means for visually displaying a display signal corresponding to the display signal data; And a control means for controlling the display means to display an instruction message for turn-over of the food in the form of a display signal when a predetermined time elapses when the grill heater is operated. Cooking darton - over indicating device. The apparatus of claim 1, wherein the display signal is displayed for a predetermined number of times. 2. The cooking device according to claim 1, wherein the display signal is in the form of a character signal.