KR20040087220A - A microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven is provided to cook equally the bottom side of foods as well as the upper and lateral sides by mounting fixed and movable heaters to at least one of the ceiling, both lateral sides, or rear side of a cooking chamber and setting the foods on the upside of a grill installed horizontally between the heaters. CONSTITUTION: A microwave oven is composed of a cavity assembly(30) forming a frame of the microwave oven and having a cooking chamber(31) of which the front side is opened; a fixed heater(41) installed to the ceiling of the cooking chamber to emit predetermined heat; a movable heater(43) disposed to at least one of both lateral sides and rear side of the cooking chamber to move up and down about one end and to emit the predetermined heat; a grill(45) detachably mounted between the fixed and movable heaters while the movable heater is operated about the end and placed with foods on the upside; and a micro switch pressed by the grill to generate an operation signal for moving vertically the movable heater.

Description

Microwave oven {A microwave oven}

The present invention relates to a microwave oven, and more particularly, to a microwave oven configured to allow food to be heated evenly by a heater.

In general, a microwave oven supplies microwaves to a cooking chamber to heat food, but recently, a heater is used as another heating source in addition to the microwave heating method.

FIG. 1 shows a main component of a microwave oven according to the prior art, FIG. 2A shows a main component of another microwave oven according to the prior art, and FIG. Is shown.

First, as shown in FIG. 1, inside the cavity assembly 10 forming the frame of the microwave oven, a cooking chamber 11 having a front surface and a space for heating food using microwave or heater heat is provided. Is formed.

In addition, one side of the cavity assembly 10 is provided with an electrical equipment chamber (not shown) in which various electronic components such as a magnetron generating microwaves and a high voltage transformer are mounted. In addition, the front plate 13 forming the front surface of the cavity assembly 10, the door 15 for opening and closing the cooking chamber 11 is rotated to the front of the microwave oven around one side.

On the other hand, the control unit 17 is installed on one side of the front plate 13 corresponding to the front of the battle room. The control unit 17 receives various operation signals for the operation of the microwave oven and serves to display various information during the operation of the microwave oven to the outside.

In addition, in the microwave oven configured as described above, a fixed heater 21 for heating the food seated in the cooking chamber 11 may be installed. The fixed heater 21 is installed on the ceiling of the cooking chamber 11, and serves to compensate for the disadvantage of the heating method by the microwave by heating the surface of the food.

In addition, in the microwave oven illustrated in FIGS. 2A and 2B, the rotation heater 23 is rotatably installed up and down on the rear surface of the cooking chamber 11. That is, the rotation heater 23 is first installed vertically adjacent to the rear surface of the cooking chamber 11, and rotates up and down by a predetermined angle with respect to the lower end of the food according to the food to be cooked, thereby reducing the distance from the food. Can be reduced.

Therefore, radiant heat or convective heat from the rotary heater 23 can be more efficiently transmitted to the food inside the cooking chamber 11. On the other hand, other components except for the rotary heater 23 of the microwave oven illustrated in FIGS. 2A and 2B are the same as those of the microwave oven illustrated in FIG. 1, and other reference numerals are used.

However, the microwave oven according to the prior art having such a configuration has the following problems.

As described above, the conventional microwave oven, the fixed heater 21 is installed on the ceiling of the cooking chamber 11 or the rotating heater installed to be rotated by a predetermined angle around the lower end portion on the rear surface of the cooking chamber 11. Cooking is performed by 21.

However, since the cooked food is placed on the bottom of the cooking chamber 11, the bottom of the food cannot be heated by the fixed heater 21 or the rotation heater 23. Therefore, in order to cook the bottom of the food seated in the cooking chamber 11, there is a disadvantage in that the inconvenience to turn over the food.

And the rotation heater 23 is rotated up and down by hand. Therefore, each time the cooking using the rotating heater 23, the inconvenience of having to rotate the rotating heater 23 by hand, and also when rotating the rotating heater 23 cooking the food upwards By the heat remaining in the rotating heater 23, it is possible to be burned.

The present invention is to improve the above-mentioned conventional problems, it is an object of the present invention to provide a microwave oven which is configured to evenly heat the bottom of the food by a heater.

Another object of the present invention is to provide a microwave oven which is configured such that the rotating heater is automatically rotated and installed according to the cooking situation.

1 and 2a is a perspective view showing the main portion of the microwave oven according to the prior art.

Figure 2b is a side cross-sectional view showing the internal configuration of the cooking chamber of the microwave oven shown in Figure 2a.

3 is a perspective view of a preferred embodiment of the microwave oven according to the invention.

Figures 4a to 4c is a state of use of the embodiment shown in FIG.

Explanation of symbols on the main parts of the drawings

30: cavity assembly 31: cooking chamber

33: front plate 35: door

37: control unit 41: fixed heater

43: rotary heater 45: grill

47: tray 49: guide

51: microswitch

According to the present invention for achieving the above object, the present invention comprises a cavity assembly which forms a frame of the microwave oven, the cooking chamber is formed in the front opening therein; A fixed heater installed on the ceiling of the cooking chamber and dissipating predetermined heat; A rotation heater installed on at least one surface of the rear surface of the cooking chamber so as to be rotatable up and down about its one end and dissipating a predetermined heat; A grill which is detachably installed between the fixed heater and the rotary heater in a state in which the rotary heater is rotated up and down about its one end, and the food is seated on an upper surface thereof; And a micro switch which is pressed by the grill to generate an operation signal for rotating the rotary heater up and down.

According to the illustrated embodiment, the rotation heater is rotatably installed on the rear end of the cooking chamber about its lower end, and the micro switch is preferably installed on one side front end of the cooking chamber.

According to the illustrated embodiment, a tray for collecting oil generated from the food seated on the grill may be installed on the bottom of the cooking chamber.

According to the microwave oven according to the present invention, the bottom and the bottom as well as the top and the side of the food on which the grill is seated, by heating by the rotating heater rotated downward around the one end, the food can be cooked evenly. There is an advantage to that.

Further, in the process of detaching the grill from the cooking chamber, the rotation heater rotates up and down by an operation signal generated by one side of the grill pressing the micro switch, so that the rotation heater has to be rotated by hand. There is an advantage that can be reduced.

Hereinafter, exemplary embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

3 shows the main components of a preferred embodiment of the microwave oven according to the present invention. As shown in the drawing, the cooking chamber 31 is formed in the cavity assembly 30 forming the frame of the microwave oven. The cooking chamber 31 is formed so that the front surface is opened, and the food is seated therein.

And cooking is made by heating the food seated in the cooking chamber 31 by microwave or heater heat. In addition, the front plate 33 forming the front surface of the cavity assembly 30, the door 35 for opening and closing the cooking chamber 31 is rotated to the front of the microwave oven around one side.

On the other hand, one side of the cavity assembly 30 is provided with an electrical equipment chamber (not shown) in which various electronic components such as magnetron and high voltage transformer are mounted. And a control unit for receiving a variety of operation signals for the operation of the microwave oven on one side of the front plate 33 corresponding to the front of the electric compartment to display various information during the operation of the microwave oven ( 37) is installed.

The cooking chamber 31 is provided with a plurality of heaters 41 and 43 for heating the food seated in the cooking chamber 31. The heaters 41 and 43 serve to compensate for the shortcomings of the heating method by microwaves by heating the surface of the food. The heaters 41 and 43 may include a fixed heater 41 and a rotating heater 43.

The fixed heater 41 is fixed to one side of the ceiling of the cooking chamber 31, the rotation heater 43 is installed on the rear side of the cooking chamber 31 rotatably up and down about its lower end. That is, the rotation heater 43 is rotated downward with respect to the lower end of the food according to the food seated in the cooking chamber 31 in a state where the rear surface thereof is vertically installed to be adjacent to the rear surface of the cooking chamber 31. .

Meanwhile, the grill 45 is installed in the cooking chamber 31. The grill 45 is a portion on which the food to be cooked when cooking using the fixed heater 41 and the rotating heater 43 is seated, and the rotating heater 43 is rotated around its lower end. Detachable horizontally installed so as to be located between the bottom surface of the fixed heater 41 and the top surface of the rotary heater 43.

That is, when the grill 45 is installed in the cooking chamber 31, the rotation heater 43 is positioned below the grill 45, and food is seated on the upper surface of the grill 45. Therefore, the bottom of the food seated on the upper surface of the grill 45, it is possible to be heated by the rotating heater 43 is located below the grill 45.

In addition, a tray 47 may be installed on a bottom surface of the cooking chamber 31 corresponding to the lower side of the rotation heater 43. The tray 47 collects oil generated in the process of heating the food seated on the upper surface of the grill 45 by the heaters 41 and 43.

On the other hand, a plurality of guides 49 are installed on both side surfaces of the cooking chamber 31. The guide 49 serves to guide and support the grill 45, and a pair is installed at both sides of the cooking chamber 31 at the same height. That is, both sides of the bottom surface of the grill 45 enter and exit the front and rear of the cooking chamber 31 along the guide 49, and when the grill 45 is installed, the guide 49 is the bottom surface of the grill 45. Support both sides.

In addition, at least one micro switch 51 is installed on one side of the cooking chamber 31. The micro switch 51 is provided at the front end of the left side of the cooking chamber 31 corresponding to the left side of the grill 45 entering and exiting the front and rear of the cooking chamber 31 along the guide 49.

The micro switch 51 is pressed by the left end of the drawing 45 of the grill 45 in the process of detaching the grill 45 to the cooking chamber 31. At this time, the micro switch 51 generates an operation signal for rotating the rotary heater 43 up and down.

Hereinafter, the operation of the preferred embodiment of the microwave oven according to the present invention having such a configuration will be described with reference to FIG. 4.

4A to 4C show the operating states of the preferred embodiment of the microwave oven according to the invention. First, as shown in FIG. 4A, in order to perform cooking using a heater in a microwave oven, a tray 47 is installed on the bottom surface of the cooking chamber 31 of the microwave oven to collect oil generated during the cooking process.

And the grill 45 for mounting the food inside the cooking chamber 31 is installed. At this time, as shown in Figure 4b and 4c, the grill 45 is moved to the rear of the cooking chamber 31 along the guide 49 formed on both sides of the cooking chamber 31, the grill 45 In the process of moving the left end of the grill 45 is pressed the micro switch 51 installed on the left side of the cooking chamber 31.

In addition, the micro switch 51 is pressed by the grill 45, thereby generating an operation signal for rotating the rotary heater 43 downward with respect to the lower end thereof. In addition, the rotation heater 43 rotates downward by the operation signal.

In this state, the food to be heated is placed on the upper surface of the grill 45. When food is seated on the grill 45, the door 35 of the microwave oven is rotated to shield the cooking chamber 31, and the control unit 37 (see FIG. 3) is operated to input an operation signal. do.

When the operation signal is input through the control unit 37, the power of the microwave oven is applied by the input operation signal, and eventually the heaters 41 and 43 are heated. In addition, the heat of the heaters 41 and 43 heated as described above is cooked to heat the food seated on the upper surface of the grill 45 in the form of radiant heat or convective heat.

At this time, since the rotation heater 43 is positioned below the grill 45, in the process of heating the food by the heaters 41 and 43, the bottom surface of the food is radiated to the radiant heat of the rotation heater 43. Can be heated. Therefore, it is not necessary to turn over the food seated on the upper surface of the grill 45 to heat the bottom of the cooking product.

That is, cooking is performed while food is seated between the fixed heater 41 and the rotating heater 43. Therefore, the upper and side surfaces of the food are not only heated by the fixed heater 41 and the rotating heater 43, but the bottom surface of the food is heated by the rotating heater 43, thereby allowing the heater 41 and 43 to be heated. Cooking can be cooked more evenly.

On the other hand, when cooking is performed by microwaves without using the heaters 41 and 43, or when the rotating heater 43 is heated without the rotating heater 43 depending on the food to be cooked. As opposed to the case in which the above-described rotating heater 43 rotates downward, the grill 45 is separated from the cooking chamber 31.

In order to separate the grill 45 from the cooking chamber 31, the grill 45 is moved forward of the cooking chamber 31 along the guide 49. In addition, the front end of the left side of the grill 45 holding the micro switch 51 is short-circuited by the micro switch 51 by the movement.

When the grill 51 and the micro switch 51 are short-circuited, the micro switch 51 generates an operation signal for rotating the rotation heater 43 upwardly with respect to the lower end thereof. In addition, the rotation heater 43 is rotated by the operation signal of the micro switch 51, and is vertically positioned to be adjacent to the rear surface of the cooking chamber 31.

According to the present invention as described above, it is a basic technical idea that the operation signal for rotating the rotary heater installed on the rear of the cooking chamber up and down is generated by pressing the grille micro switch installed in the cooking chamber of the microwave oven. It can be seen that.

Within the scope of the basic technical idea of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the appended claims. will be.

In the illustrated embodiment, the rotating heater is installed on the rear surface of the cooking chamber, but is not limited thereto. For example, the rotation heater may be installed on one side of the cooking chamber, and the rotation heater may be installed on both sides of the cooking chamber.

In the illustrated embodiment, one micro switch is installed on one side of the left side of the cooking chamber, but the installation position or number of the micro switches is not limited thereto. However, it will be preferable that the micro switch is installed at one end of the side of the cooking chamber.

As described in detail above, the microwave oven according to the present invention has a fixed heater and a rotating heater installed on the ceiling of the cooking chamber and at least one of both sides or the rear surface of the cooking chamber, respectively, and is horizontally disposed between the fixed heater and the rotating heater. As the food is seated on the upper surface of the grill, the lower surface of the food may be cooked evenly.

In addition, since one side of the grill presses the micro switch installed in the cooking chamber in the detaching process of the grill, an operation signal for rotating the pivoting heater is generated, so that the pivoting heater is rotated by hand or the pivoting heater is operated. It is possible to reduce the hassle, such as operating a separate switch for. In addition, it is also possible to prevent burns that may occur in the process of rotating the rotary heater by hand.

Claims (3)

A cavity assembly which forms a frame of a microwave oven and has a cooking chamber having a front surface opened therein; A fixed heater installed on the ceiling of the cooking chamber and dissipating predetermined heat; A rotation heater installed on at least one surface of the rear surface of the cooking chamber so as to be rotatable up and down about its one end and dissipating a predetermined heat; A grill which is detachably installed between the fixed heater and the rotary heater in a state in which the rotary heater is rotated about one end thereof, and on which a food is seated; And And a micro switch which is pressed by the grill to generate an operation signal for rotating the rotary heater up and down. The method of claim 1, The rotating heater is rotatably installed on the rear end of the cooking chamber, The micro switch is a microwave oven, characterized in that installed in the front end portion of the cooking chamber. The method according to claim 1 or 2, It is installed on the bottom of the cooking chamber, characterized in that it further comprises a tray for collecting the oil generated from the food seated on the grill.