KR100302521B1 - Microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven is provided in which an electrical components box is installed to be put into a cooking chamber so that minimizing the occupying volume of the electrical components box by putting into the cooking chamber when the microwave oven is not used. CONSTITUTION: In a microwave oven comprising a housing(100) in which a cooking chamber(200) is formed to cook using the high frequency waves, a magnetron(310) oscillating the high frequency waves and emitting to the cooking chamber, and a high voltage transformer(320) applying the high frequency waves to the magnetron, a guide flange(130) is arranged at a side of the housing to form an inserting space(130a) in the shape of square. An electrical components box(300), in which the magnetron and the high voltage transformer are installed, is capable of being putting into the cooking chamber with being supported by the guide flange. An outer flange(350) is installed at one end part of the electrical components box and contacted to the inside of the housing when the electrical components box is fully taken out. A sheltering member(370) made of ferrite is arranged at the outer flange and prevents the leakage of the high frequency waves through a gap between the electrical components box and the guide flange.

Description

microwave

The present invention relates to a microwave oven, and more particularly, to install an electronic box equipped with a plurality of electrical appliances in a housing in which a cooking chamber is formed to be accessible so that the space can be used more efficiently by reducing the installation space when the microwave oven is not in use. It's about a microwave oven.

In general, the microwave oven is a mechanism for cooking food by friction heat between molecules by radiating high frequency of 2450MHz fundamental wave from the magnetron into the cooking chamber and repeatedly converting the molecular arrangement of moisture contained in the food. 1 is a cross-sectional view showing the overall structure of a conventional microwave oven.

As shown in the related art, a microwave oven includes a housing 10 in which a cooking chamber 20 and an electrical equipment compartment 30 are partitioned therein, a door (not shown) for opening and closing the cooking chamber 20, and a housing ( 10 is composed of an inner case 12 forming an cooking chamber and an outer case 11 forming an exterior.

The inner case 12 includes a front plate, a rear plate, and side plates to form a cooking chamber 20, and a turntable type cooking dish 21 is installed on the bottom surface of the cooking chamber 20. The front plate and the rear plate of the inner case 12 are extended by a predetermined width to the upper side and the left and right sides, the opening of the cooking chamber 20 is provided on the front plate. The outer case 11 has a front and rear ends coupled to the front plate and the rear plate extending portion of the inner case 12 to form an exterior body, and is spaced apart from the side plates of the inner case 12 by a predetermined interval. In addition, a door (not shown) is hinged to the front plate of the inner case 12, and a control unit (not shown) is provided with a display unit (not shown) and a plurality of operation buttons (not shown) on the right extension of the front plate. Combined.

In addition, the electrical equipment room 30 in which various electrical equipments are installed is formed in a space between the right side plate of the inner case 12 and the right side plate of the outer case 11, and generates high frequency radiation to the cooking chamber 20. The magnetron 31, a high voltage transformer 32 for applying a high voltage to the magnetron 31, and a cooling fan (not shown) for cooling the electric parts that generate heat are provided.

When using the conventional microwave oven configured as described above, the food is first put into the cooking chamber 20 and the door (not shown) is closed. And after setting the cooking conditions through the operation button of the control unit (not shown) to suit the food and operate it, the high frequency oscillated from the magnetron 31 radiates the cooking chamber 20, the food containing water This is cooked.

However, in the conventional microwave oven, since the cooking chamber 20 and the electric appliance compartment 30 are fixedly partitioned, there is a limit to compacting the product size of the microwave oven.

That is, the cooking chamber 20 and the electrical equipment compartment 30 are partitioned inside the housing 10, whereby the overall width and length of the housing 10 are large. Accordingly, when a conventional microwave oven is installed in a kitchen, a large space is required, and thus there is a problem in that the kitchen space cannot be efficiently used.

The present invention is to solve such a problem, an object of the present invention is to install the electrical equipment box equipped with a plurality of electrical equipment in the housing is formed in the cooking chamber to be accessible, when using it to draw out the electrical equipment box to the maximum The electronic box is pushed into the cooking compartment to further reduce the space it occupies.

In addition, another object of the present invention is to form a flange on one end of the electrical box located in the cooking chamber and to install a high-frequency shielding member made of ferrite again, the electronic that can prevent the high-frequency leakage between the electrical box and the housing To provide a stove.

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

2 is a perspective view showing the overall structure of a microwave oven according to the present invention.

3 is a cross-sectional view of the microwave oven according to the present invention, showing a pulled out state of the electronic box.

Figure 4 shows an incoming state according to the present invention.

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

100. Housing 110. Outer case 120. Inner case

130. Guide 140. Button switch 200. Cooking room

300. Electric box 330 Cover 340 Handle

350. Flange 370 Ferrite high frequency shield

The present invention for achieving this object is;

In a microwave oven having a housing with a cooking chamber formed therein, a magnetron that oscillates and radiates high frequency into the cooking chamber, and a high voltage transformer that applies a high voltage to the magnetron.

One side of the housing is a magnetron and a high-voltage transformer is built-in, characterized in that the electrical box is provided that can be entered into and out of the housing.

In addition, one side of the housing is provided with an opening in communication with one side of the cooking compartment to enter the electrical box,

The opening is characterized in that the guide is provided along the border to guide the entry and exit of the electrical equipment box.

In addition, a flange is provided on one side of the electrical equipment box disposed on the side of the cooking chamber so as to extend along the edge, and the flange is in contact with one side wall of the cooking chamber when the electrical extraction box is pulled out.

In addition, a button switch operating in contact with the flange is arranged on one side wall of the cooking chamber, characterized in that the power of the microwave is turned on / off by the button switch.

In addition, the handle is provided on the central portion of the other side of the electronic box exposed to the outside of the housing,

The other side edge of the electronic box is characterized in that the cover portion is provided to maintain the same surface as the housing when the maximum entry of the electronic box.

In addition, the flange is characterized in that the high-frequency shielding member made of a ferrite material for preventing high frequency leakage between the one side wall and the flange of the cooking chamber.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 2 is a perspective view showing the overall structure of a microwave oven according to the present invention, Figures 3 and 4 are cross-sectional views of the microwave oven according to the present invention.

As shown in FIGS. 2 and 3, the microwave oven according to the present invention is hingedly coupled to the front surface of the housing 100 and the housing 100 in which the cooking chamber 200 is formed so that one surface is opened therein. ) Has a door (150) for opening and closing the electronic box 300, the built-in magnetron 310 to oscillate high frequency to the cooking chamber 200.

The box-shaped housing 100 constituting the outer body forms the cooking chamber 200 and includes an inner case 120 in which the cooking dish 210 is seated, and an outer case 110 surrounding the outside of the inner case 120 at a predetermined interval. Equipped. And the door 150 is hinged to the front portion of the housing 100, which is composed of a projection window so that the cooking situation of the food can be seen from the outside.

On the other hand, the electrical equipment box 300 is a characteristic element of the present invention is installed so as to enter and exit from one side of the housing 100, the installation space occupied by entering the cooking chamber 200 when not using a microwave oven It is further reduced, its detailed structure is as follows.

First, an opening 130a is formed on one side of the inner case 120 and the outer case 110 constituting the housing 100 in a quadrangular shape so that the cooking chamber 200 communicates with the outside. Guide 130 is provided to extend in the outer direction of the housing 100 along the edge of the opening (130a) to guide the.

The electrical equipment box 300 includes a box-shaped body 301 made of steel and a left and right side plates 302 and 303 attached to close both ends of the body 301 to form a hexahedron box. Inside the electronic box 300, a magnetron 310 for oscillating high frequency, a high voltage transformer 320 for applying a high voltage to the magnetron 310, and a choke circuit board for removing noise included in an input power source (not shown) In addition, a waveguide plate 360 made of a plastic material is provided at the center of the left side plate 302 of the electronic device box 300 located inside the cooking chamber 200 to generate a high frequency wave generated from the magnetron 310. This is radiated to the cooking chamber 200.

The body 301 of the electronic device box 300 is guided by the guide 130 and is accessible to the cooking chamber 200. The center of the side plate (right side in the drawing) of the electronic device box is exposed to the outside of the housing to slide it. A handle 340 is provided at the site.

In addition, a flange 350 for controlling the maximum drawing is provided at the edge of one side plate 302 (the left side plate in the drawing) of the electrical equipment box 300 located in the cooking chamber 200, At the time of maximum withdrawal, the flange unit 350 and the corresponding cooking chamber 200 have a button-type switch 140 installed on and off to control the initial operation of the microwave oven. The button switch 140 is connected to the main power source of the microwave oven, it is preferable to configure a kind of on-off switch. Accordingly, when the electrical equipment box 300 is drawn out to the maximum, the flange 350 presses the button-type switch 140, which is on, and the operation of the microwave oven is enabled. On the contrary, when the electric box 300 is not drawn out or pushed to the maximum, the button-type switch 140 is turned off to maintain the main power disconnected state.

In addition, the high frequency shielding member 370 made of a ferrite material is attached to the flange 350 along the inner surface of the edge. Accordingly, the radio frequency shielding member 370 and the side surface of the cooking chamber 200, that is, the inner case 120, are brought into contact with each other when the electronic device 300 is pulled out to the maximum, and the electrons pass through the flange 350 and the side of the cooking chamber 200. High frequency leakage is prevented during operation of the stove.

In addition, the cover part 330 extended to form the same plane as the outer case 110 of the housing 100 on the other side plate 303 (right side plate in the drawing) of the electrical equipment box 300 exposed to the outside of the housing 100. It is prepared. Because of this, when the electrical equipment box 300 is maximally drawn into the housing 100, the cover part 330 surrounds the outside of the guide 130 to make a beautiful appearance. At this time, the lower end of the cover portion 330 is preferably configured to be in parallel with the function to prevent the sag of the electrical equipment box 300 in contact with the installation bottom surface.

Next will be described the operation and effects according to the microwave oven according to the present invention configured as described above.

First, when the microwave oven is not used, the user pushes the electronic device box 300 into the housing 100 using the handle 340. Thus, as shown in FIG. 4, the electronic device box 300 on the box is a guide. While being supported by 130, most of them are inserted into the cooking chamber 200 and the cover part 330 surrounds the guide 130. At this time, the button-type switch 140 is separated from the flange 350, whereby the main power supply is short-circuited and the cooking operation of the microwave is not performed.

On the other hand, if you want to use a microwave, as shown in Figure 3, the handle 350 until the flange 350 is no longer pulled out in contact with the side of the cooking chamber 200, that is, the inner case 120 Grasp the electrical equipment box 300 and pull out the housing 100. Therefore, most of the electrical equipment box 300, in which a plurality of electrical equipment, such as the magnetron 310 and the high-pressure transformer 320, are built, is supported by the guide 130 and exposed to the outside of the housing 100, and the button switch 140 is The main power is turned on while operating in contact with the ferrite shielding member 370 provided along the edge of the flange 350.

In this state, when the workpiece is placed in the cooking chamber 200 and the door 150 is closed and operated, the high frequency generated from the magnetron 310 passes through the waveguide 360 to be radiated to the cooking chamber 200. In the cooked product irradiated with, the molecular arrangement of moisture is rapidly converted and cooking is performed by frictional heat.

At this time, the gap between the flange 350 and the inner case 120, that is, the gap (gap) performs the choke structure function to prevent the leakage of high frequency, and also by the high frequency shield member 370 made of ferrite material flange ( High frequency leakage is prevented between the side 350 and the side of the cooking chamber 200 to ensure safety.

When the microwave oven is no longer used, the handle 340 is grasped again and the electric box 300 is pushed into the cooking chamber 200. At this time, the button-type switch 140 is separated from the planar 350 and the main power is short-circuited, so that the cooking operation is not performed in the state in which the electric box 300 is pushed in, so that it is safe.

Therefore, the electric box 300 is withdrawn only when the microwave oven is used, and when the electric box is not used, the electric box 300 is pushed into the housing 100 to be stored, so that the installation space occupied by the kitchen is greatly reduced. . In addition, high frequency leakage is prevented by the high frequency shielding member 370 provided in the flange 350 during operation to ensure stability.

As described in detail above, according to the microwave oven according to the present invention, a housing having a cooking chamber formed therein and a electrical equipment box having a plurality of electrical appliances mounted thereon, the electrical equipment box is installed to be accessible to the inside and outside of the housing. Therefore, when using a microwave oven, draw out the electric box to the maximum to cook food, and when not in use, the electric box is pushed into the housing, that is, the cooking chamber, and stored, thereby greatly reducing the installation space occupied by the microwave. This has the effect of using the kitchen space more efficiently. In addition, a high-frequency shielding member made of a ferrite material is attached to one side of the electrical equipment box located in the cooking chamber, and since the cooking operation of the microwave is not performed without drawing the electrical equipment box to the maximum, it is used stably. Can be.

Claims (6)

It has a housing (100) having a cooking chamber (200) formed therein, a magnetron (310) for oscillating and radiating high frequency to the cooking chamber (200), and a high voltage transformer (320) for applying a high voltage to the magnetron (310). In the microwave, One side of the housing 100 is a microwave oven, characterized in that the magnetron 310 and the high-voltage transformer 320 is built-in and the electrical equipment box 300 is provided that can be moved in and out of the housing (100). The method of claim 1. One side of the housing 100 is provided with an opening 130a communicating with one side of the cooking chamber 200 to allow the electrical equipment box 300 to enter and exit. The opening 130a is a microwave oven, characterized in that a guide 130 is provided along its edge to guide the entry and exit of the electrical equipment box (300). The method of claim 2. A flange 350 is provided on one side 302 of the electrical equipment box 300 disposed on the cooking chamber 200 to extend along an edge, and the flange 350 is pulled out at the maximum length of the electrical equipment box 300. The microwave oven, characterized in that in contact with the side wall of the cooking chamber (200). The method of claim 3. On the side wall of the cooking chamber 200 is disposed a button switch 140 to operate in contact with the flange 350, microwave power characterized in that the power of the microwave is turned on / off by the button switch 170. . The method of claim 3. A handle 340 is provided at a central portion of the other side 303 of the electronic device box 300 which is exposed to the outside of the housing 100. The microwave oven, characterized in that the cover portion 330 is provided at the edge of the other side 303 of the electrical equipment box 300 to maintain the same surface as the housing 100 when the electrical equipment box 300 is drawn up. The method of claim 3. The flange 350 is a microwave oven characterized in that the high frequency shielding member 370 of ferrite material is attached to prevent the high frequency leakage between the cooking chamber 200, one side wall and the flange 350.