KR20020082041A - Microwave Range - Google Patents

Abstract

PURPOSE: A microwave oven is provided to reduce cooking hours, and to minimize power consumption by cooking the small amount of food automatically and the large amount of food manually with installing plural trays in a cooking chamber. CONSTITUTION: A microwave oven is composed of a waveguide(44) arranged in the upper parts of a cooking chamber(50) and an electric component chamber(40), a magnetron(42), a cooling fan, an opening part formed in the waveguide, and plural trays formed in the floor of the cooking chamber. A first tray(51) is arranged near the electric component chamber for cooking the small amount of food, and a second tray(55) is spaced from the first tray for cooking the large amount of food. The opening part of the waveguide is divided by a partition(70), and a cooking sensor(48) is formed in the opening part. Cooking is detected by streaming air of the cooking chamber and steam from food to the cooking sensor.

Description

Microwave Range {Microwave Range}

The present invention relates to a microwave oven, and more particularly, to a microwave oven in which a plurality of trays are installed in a cooking chamber so that a plurality of foods can be cooked simultaneously or any one of a small amount and a large amount of food can be selectively cooked. will be.

Generally. A microwave oven is a cooking utensil for cooking using high frequency radiated from a magnetron. That is, the microwave oven cooks food by frictional heat between molecules generated by radiating high frequency into the cooking chamber and repeatedly converting a molecular arrangement of moisture contained in the food placed in the cooking chamber.

Hereinafter, the configuration and operation of a conventional microwave oven will be described with reference to FIGS. 1 and 2. 1 is a cross-sectional view schematically illustrating an internal structure of a conventional turntable type microwave oven, and FIG. 2 is a schematic view of an internal structure of a conventional stirrer type microwave oven.

First, the conventional turntable type microwave oven illustrated in FIG. 1 will be described. The cooking table 2 and the electrical equipment compartment 3 are partitioned inside the main body 1 forming the exterior. Although not shown, the front of the main body 1 is provided with a door for opening and closing the cooking chamber 2, and a control panel for selecting the type of cooking and the cooking time.

The electrical equipment room 3 has a high voltage transformer 4 for boosting the voltage applied from an external power source to a high voltage, and a magnetron for generating high frequency radiation using the high voltage boosted by the high voltage transformer 4 to radiate it into the cooking chamber 2 ( Electronic equipment such as 5) is installed. This electrical equipment compartment 3 is also provided with a cooling fan 6 for forcibly sucking external air into the electrical equipment compartment 3 to cool the heat generated in the electrical equipment.

The cooking chamber 2 is provided with a single tray 8 on which food is placed, a drive motor 9 for rotating the tray 8 and a plurality of rollers 10.

When the microwave oven of the turntable method configured as described above is operated, high frequency radiation is emitted from the magnetron 5 to the cooking chamber 2. At the same time, as the tray 8 on which food is placed rotates at a low speed, high frequency is irradiated to the food, thereby cooking. Completion of cooking is performed by a cooking time previously input by a user through a control panel or automatically based on the weight and type of food detected by the weight sensor 11 provided at the bottom of the tray 8. Can be determined.

Next, a conventional stirrer type microwave oven illustrated in FIG. 2 will be described. This stirrer type microwave oven is almost the same as the turntable type microwave oven of FIG. 1 except that a stirrer, i.e., a high frequency dispersing device is provided, the description of the same configuration will be omitted, and the stirrer will be described. Will be described.

The stirrer type microwave oven is provided with the waveguide 20 provided in the upper part of the electrical equipment compartment 3 and the cooking chamber 2. A magnetron 5 is installed at the inlet of the waveguide 20 located in the electrical equipment compartment 3, and a stirrer rotated by the drive motor 22 at the outlet of the waveguide 20 located above the cooking chamber 2. 21) is installed. An opening 23 is formed in the side surface of the waveguide 20 in which the stirrer 21 is located so that the high frequency is irradiated to the cooking chamber 2 through the opening 23.

When the microwave of the stirrer type is operated, the high frequency is radiated from the magnetron 5 to be guided along the waveguide 20, and is diffusely reflected by the stirrer 21 positioned at the outlet of the waveguide 20 to open the opening 23. It is distributed to the cooking chamber (2) through. At the same time, as the tray 8 on which food is placed rotates at a low speed, high frequency is uniformly irradiated onto the food, thereby cooking. Therefore, the stirrer type microwave oven can cook food more quickly and uniformly than the turntable type microwave oven.

However, the conventional microwave oven has the disadvantage of cooking only one food at a time by providing only one tray in the cooking chamber. That is, in the conventional microwave oven, when there are many foods to be cooked, only one of them is cooked at a time, and thus cooking time is increased, and power consumption is also increased.

The present invention is to solve the above-mentioned problems of the prior art, an object of the present invention is to provide a microwave oven capable of cooking a plurality of food at the same time having a plurality of trays.

Another object of the present invention is to provide a microwave oven capable of cooking a small amount and a large amount of food simultaneously or selectively cooking any one of them.

It is still another object of the present invention to provide a microwave oven which allows for the cooking of small amounts of food automatically and the large amount of food manually.

1 is a cross-sectional view schematically showing the internal structure of a conventional turntable type microwave oven.

2 is a cross-sectional view schematically showing the internal structure of a conventional stirrer type microwave oven.

3 is a perspective view schematically showing the internal structure of a microwave oven having two trays according to the present invention.

4 is a cross-sectional view of a microwave oven according to the present invention when cooking is performed simultaneously in two trays or when cooking is performed only in one tray for a small amount of cooking.

5 is a cross-sectional view of a microwave oven according to the present invention when cooking is performed only in another tray for a large amount of cooking.

* Description of symbols on the main parts of the drawings *

40: electrical equipment room 42: magnetron

44: waveguide 46: stirrer

48: cooking sensor 50: cooking chamber

51: first tray 55: second tray

70: bulkhead

Microwave according to the present invention for achieving this object, the cooking chamber and the electrical equipment compartment, partitioned each other inside the main body, a waveguide disposed over the upper portion of the cooking chamber and the electrical equipment compartment, the magnetron coupled to the waveguide in the electrical equipment compartment, And an opening provided in the waveguide so as to open toward the cooking chamber, and a plurality of trays provided at the bottom of the cooking chamber.

In addition, the plurality of trays are arranged adjacent to the electrical equipment compartment, the first tray having a size for cooking a smaller amount of food, and is arranged spaced apart from the first tray at a predetermined interval to cook a larger amount of food. It consists of a second tray having a size for.

The cooking chamber is provided with a partition wall disposed between the first and second trays to isolate the first and second trays from each other, and divides the opening of the waveguide disposed above the cooking chamber. In addition, a cooking sensor is provided in an area facing the first tray of the opening divided by the partition wall, and a cooling fan is installed in the electrical equipment compartment, so that air introduced into the cooking chamber by the cooling fan is discharged. 1 is sent to the cooking sensor together with water vapor generated from the food placed on the tray to detect whether the food is finished cooking.

Grooves for easily attaching and detaching the partition wall are provided at the bottom and the upper wall of the cooking chamber, and the partition wall is detachably attached to the cooking chamber by the grooves.

Preferably, the partition wall is made of a material that passes high frequency.

In addition, a stirrer disposed toward the opening is installed inside the waveguide to distribute high frequency waves induced into the waveguide toward the entire space of the cooking chamber.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

3 to 5 are a perspective view and a cross-sectional view schematically showing the internal structure of a microwave oven having two trays according to the present invention. As shown in the drawing, the microwave oven according to the present invention includes an electric appliance compartment 40 and a cooking compartment 50 which are partitioned from each other in the body 30 forming the appearance.

The electrical equipment room 40 is provided with electrical equipment such as the high voltage transformer 41 and the magnetron 42, and a cooling fan 43 for cooling the heat generated by the electrical equipment. The air that has flowed into the electrical equipment room 40 by the cooling fan 43 and cools the electrical equipment is sent to the cooking chamber 50 to discharge water vapor and odor generated from the food to the outside of the microwave oven. A plurality of first and second vent holes 60, 61 are perforated in the side walls of 50.

A waveguide 44 is disposed over the electrical equipment compartment 40 and the upper portion of the cooking compartment 50 to guide the high frequency radiated from the magnetron 42 to the cooking compartment 50, and the magnetron 42 is the waveguide 44. It is coupled to the inlet of. At the outlet of the waveguide 44, an opening 45 is formed toward the cooking chamber 50 so that the high frequency guided along the waveguide 44 is irradiated to the cooking chamber 50. Further, in the region where the opening 45 of the waveguide 44 is formed, a stirrer 46 for distributing high frequency into the entire space of the cooking chamber 50 and a cooking sensor 48 for detecting whether food is cooked or not. Is installed. The stirrer 46 including a plurality of wings is rotated by the drive motor 47 to diffuse the high frequency toward the cooking chamber 50.

At the bottom of the cooking chamber 50, a first tray 51 provided adjacent to the electrical equipment compartment 40 and a second tray 55 arranged in parallel with a predetermined distance from the first tray 51 are installed. have. Preferably, the first tray 51 is made smaller in size than the second tray 55 in order to cook a relatively small amount of food or a food that can be cooked in a short time, and the second tray 55 ) Is made larger in size than the first tray 51 to prepare a large amount of food or a time-consuming food.

The trays 51 and 55 may be rotated at a low speed by each of the driving motors 52 and 56 and the plurality of rollers 53 and 57 installed thereunder to uniformly irradiate food with high frequency. Will be.

The first tray 51 and the second tray to guide the water vapor generated from the food F1 to the cooking sensor 48 which detects whether the food F1 cooked on the first tray 51 has been cooked. Between the 55 is provided a partition wall 70 having a material such as a plastic that allows high frequency to pass. The partition wall 70 divides the opening portion 45 of the waveguide 44 into a first opening portion 45a opened toward the first tray 51 and a second opening portion 45b opened toward the second tray 55. Is arranged to. It is preferable that the partition wall 70 is easily detachable. For this purpose, grooves 59 are provided at the bottom and the upper wall of the cooking chamber 50 to slide and separate the partition wall 70 in a slide manner. . The grooves 59 are formed in the front and rear directions along the top wall and the bottom of the cooking chamber 50 to accommodate the top and bottom of the partition wall 70 therein.

The cooking sensor 48 is disposed in the first opening 45a opened toward the first tray 51 from the opening 45 of the waveguide 44 formed on both sides thereof with the partition wall 70 interposed therebetween. Accordingly, water vapor generated from the food F1 cooked in the first tray 51 is guided to the first opening 45a by the partition wall 70 together with air introduced through the first vent hole 60. Then, the second sensor is sent toward the second tray 55 through the second opening 45b opened toward the second tray 55 via the cooking sensor 48. Air sent to the second tray 55 is discharged to the outside through the second vent hole 61 together with water vapor generated in the second tray 55.

4 is a view illustrating an operating state of the microwave oven according to the first embodiment of the present invention configured as described above. In this first embodiment, the first and second trays 51 and 55 may be cooked simultaneously. Or, cooking is performed only in the first tray 51.

First, the simultaneous cooking will be described. In the first tray 51, a small amount of food F1, which requires a relatively short cooking time, may be placed, and the second tray 55 may have a relatively large amount of time. After the food F2 is settled, the cooking time for the food F2 placed on the second tray 55 is input through the operation of the control panel 80 (see FIG. 3). Cooking through the first tray 51 is automatically sensed by the partition 70 and the cooking sensor 48 according to the present invention, there is no need to input the cooking time separately. However, if necessary, it may be configured to input a cooking time for cooking the food F1 placed on the first tray 51.

Next, when the cooking start button 81 of the control panel 80 is pressed, the high voltage transformer 41 and the magnetron 42 are operated to radiate high frequency waves to the waveguide 44, and the first and second trays 51 are used. 55 is rotated at a low speed by the drive motors 52, 56 and the rollers 53, 57. In addition, the cooling fan 43 is operated to cool the high pressure transformer 41 and the magnetron 42 by introducing air from the outside into the electrical equipment compartment 40.

The high frequency radiated to the waveguide 44 is dispersed by the stirrer 46 and irradiated to the entire space of the cooking chamber 40 through the opening 45 of the waveguide 44 so that the first tray 51 and the second tray ( The foods F1 and F2 placed on the plate 55 are uniformly cooked.

At this time, the partition wall 70 is made of a material that allows high frequency to pass so that the high frequency is not prevented from being transmitted to both trays 51 and 55.

On the other hand, the air introduced into the electrical equipment compartment 40 by the cooling fan 43 is introduced into the cooking chamber 50 through the plurality of first vent holes (60). The air is guided by the partition 70 to the first opening 45a of the waveguide 44 and passes through the cooking sensor 48 together with water vapor generated from the food F1 cooked in the first tray 51. do. Air passing through the first opening portion 45a is sent to the second tray 55 separated from the first tray 51 by the partition wall 70 through the second opening portion 45b and is generated from the food F2. The vapor and the odor is discharged to the outside through the second vent (61). During this cooking process, the cooking sensor 48 detects steam or gas generated from the food F1 placed on the first tray 51 and determines whether cooking is completed. This flow of air is indicated by arrows in FIG. 4.

When the cooking of the food F1 is completed, the buzzer rings from the control panel 80 to notify the user of the completion of cooking. In this case, the user takes out the food F1 from the first tray 51 and then restarts the button 81. Press () to continue cooking food F2 placed on the second tray 55.

When the cooking is completed after a certain cooking time for the food F2 placed on the second tray 55, the buzzer notifies the completion of cooking is sounded again so that the user takes out the food F2 to complete the cooking.

On the other hand, when cooking only in the first tray 51 in order to cook a small amount of food, the food (F1) only in the first tray 51 without operating the second tray 55 and the drive motor 56 You can cook with). In this case, only the process of cooking the food F2 placed on the second tray 55 in the above-described cooking process may be omitted. Therefore, further description thereof will be omitted.

FIG. 5 illustrates an operating state of the microwave oven according to the second embodiment of the present invention. In this second embodiment, the first tray 51 is not operated for cooking a relatively bulky food. Cooking is performed only in the second tray 55.

In this regard, first, the partition wall 70 is slidably moved from the groove 59 so that the air introduced into the first vent hole 60 by the cooling fan 43 flows smoothly to the second tray 55. Pull out and remove. In this state, the food F2 is placed on the second tray 55 and the cooking time for the food F2 is input through the ton troll panel 80. This may be determined by the cooking time already programmed according to the type or weight of the food F2. To this end, the weight sensor 58 may be installed in the second tray 55.

Next, when the cooking start button 81 of the control panel 80 is pressed, the high voltage transformer 41 and the magnetron 42 are operated to radiate high frequency to the waveguide 44, and the second tray 55 drives the motor. By 56 and the roller 57, it rotates at low speed. In addition, the cooling fan 43 is operated to cool the high pressure transformer 41 and the magnetron 42 by introducing air from the outside into the electrical equipment compartment 40. The high frequency radiation radiated to the waveguide 44 is distributed by the stirrer 46 and irradiated to the entire space of the cooking chamber 40 through the opening 45 of the waveguide 44 so as to be placed on the second tray 55. F2) is cooked uniformly.

On the other hand, the air introduced into the electrical equipment compartment 40 by the cooling fan 43 is introduced into the cooking chamber 50 through the plurality of first vent holes (60). The air flows directly toward the second tray 55 to discharge the steam and odor generated from the food F2 to the outside through the second vent hole 61.

When the cooking of the food F2 is completed after a certain time, the buzzer rings from the control panel 80 to notify the user of the completion of cooking, and the user takes out the food F2 to complete the cooking.

As described above, the microwave oven according to the present invention can cook a small amount of food and a large amount of food at the same time or separately, for this type of magnetron can be changed to high power, medium power, low power, etc. You will be able to cook more efficiently.

As described above in detail, since the microwave oven according to the present invention can cook a plurality of foods at the same time by installing a plurality of trays in the cooking chamber, the cooking time can be shortened and power consumption can be reduced.

In addition, the microwave oven according to the present invention is to have a size that can cook a small amount of food in one tray, and to have a size that can cook a large amount of food in the other tray, Depending on the quantity, a tray of suitable size can be determined. This can further reduce power consumption.

Further, the microwave oven according to the present invention enables automatic cooking of food in a tray having a relatively small size, and manually cooking food in a tray having a relatively large size, thereby allowing a plurality of foods in one cooking chamber. There is an advantage that can be cooked effectively.

Claims (9)

A cooking compartment and an electrical equipment compartment partitioned from each other inside the main body; A waveguide disposed over an upper portion of the cooking chamber and the electrical equipment compartment; A magnetron coupled to the waveguide in the electrical equipment compartment; An opening provided in the waveguide to open toward the cooking chamber; And a plurality of trays provided at the bottom of the cooking chamber. The method of claim 1, The plurality of trays are disposed adjacent to the electrical equipment room and have a first tray having a size for cooking a smaller amount of food, and spaced apart from the first tray at a predetermined interval, for cooking a larger amount of food. And a second tray having a size. The method of claim 2, The cooking chamber is provided with a partition wall disposed between the first and second trays to isolate the first and second trays from each other, and divides the opening of the waveguide disposed above the cooking chamber. Range. The method of claim 3, wherein A cooking sensor is provided in an area facing the first tray of the opening divided by the partition wall, and a cooling fan is installed in the electrical equipment compartment so that air introduced into the cooking chamber by the cooling fan is transferred to the first tray. Microwave oven characterized in that it is sent to the cooking sensor with the steam generated from the food raised on the sensing whether the cooking of the food is completed. The method of claim 4, wherein The cooking sensor is a microwave oven, characterized in that the humidity sensor. The method of claim 4, wherein The cooking sensor is a microwave oven, characterized in that the gas sensor. The method of claim 3, wherein The bottom and the top wall of the cooking chamber is provided with a groove for easily detachable to the partition wall, the partition wall is characterized in that the grooves are detachably attached to the cooking chamber by the grooves. The method of claim 3, wherein The partition is a microwave oven, characterized in that made of a material that passes high frequency. The method of claim 1, A stirrer disposed toward the opening is provided inside the waveguide to disperse the high frequency wave induced in the waveguide toward the entire space of the cooking chamber.