KR20000014364A - Microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven is provided to reduce the number of components and the assembling process by omitting an additional supporter on the front face caused by the supporting member of an integrally injection-molded guide member. CONSTITUTION: The microwave oven has:an inner case(120) provided by partitioning a cooking chamber(140) and an electric component chamber(150); a case(110) forming an outer appearance of a microwave oven by consisting of an outer case(130) placed to cover the outside of the inner case; and a door(145) and a control panel(155) installed on the front face of the cooking chamber and the electric component chamber.

Description

microwave

The present invention relates to a microwave oven, and more particularly, to a microwave oven in which a guard member for closing a space between a bottom surface and a space between a bottom of a microwave oven and a support part for supporting the front side of the bottom of the microwave oven is integrally formed. .

In general, a microwave oven is a cooker that cooks microwaves of approximately 2,450 MHz to a workpiece in a metal case and generates heat by molecular motion of the workpiece itself. In such a microwave, high frequency oscillated in a magnetron is induced into a case, and molecules constituting a workpiece are charged with + and − by the induced high frequency. At this time, one side of the molecule is charged with-on the + side of the electric field by electromagnetic waves, and the other side of the molecule is charged with + on the-side of the electric field. By the way, since the polarity of the electric field changes 2.45 billion times per second due to high frequency radio waves, the molecules to be treated collide with each other severely, and friction heat is generated at this time, and the objects to be heated are heated.

FIG. 1 is an exploded perspective view illustrating a conventional microwave oven. As shown in the drawing, a conventional microwave oven includes an inner case 20 in which a cooking chamber 40 and an electrical equipment compartment 50 are partitioned therein, and an outer case provided to cover the outside of the inner case 20 ( 30 is provided to form a case 10 to form the appearance of the microwave oven. A door 45 and a control panel 55 are provided in front of the cooking chamber 40 and the electrical equipment compartment 50.

The cooking chamber 40 is provided on the left side of the inner case 20 so as to accommodate the cooked object, and the front is opened to form an inlet, and the cooking dish 41 for rotating the cooked material rotates therein. It is installed to be possible. In addition, a plurality of inflow holes 42 are provided in the right side of the cooking chamber 40 to introduce a part of the air introduced into the electrical equipment compartment 50 into the cooking chamber 40. In addition, a plurality of discharge holes 43 are formed at the left side of the cooking chamber 40 to discharge the moisture evaporated when cooking the cooked product together with the air introduced from the outside to the cooking chamber 40. The air discharged to the outside of the cooking chamber 40 is discharged to the outside of the microwave oven through the plurality of rear exhaust pipes 21 and the bottom exhaust pipe 61 provided on the bottom of the inner case 20.

The door 45 is installed at the front of the inner case 20 in front of the cooking chamber 40 so that the cooking chamber 40 can be opened and closed, one end of which rotates with the hinge 46 installed at the upper left and lower ends of the inner case 20. Possible coupling is provided as a fixed end, and the other end is rotated about the hinge 46 to open and close the cooking chamber 40.

The electrical equipment room 50 is formed on the right side of the inner case 20, and the high-voltage transformer (mido) that applies a high voltage to the magnetron 51 and the magnetron 51 that oscillate a high frequency to radiate to the cooking chamber 40 therein. Electrical equipment such as H.), and a blowing fan 52 is installed at the rear to forcibly convection external air into the cooking chamber 40 to cool the heat generated during operation of the magnetron 51 and the high-voltage transformer (not shown). Let's do it.

The control panel 55 is formed to protrude toward the front of the electrical equipment room 50, the front of the control panel 55 is provided with a plurality of operation buttons 56 for operating the opening and closing of the door 45 and the microwave.

On the other hand, the bottom surface of the inner case 20 is provided as a lower plate 60 which is installed spaced apart from the cooking chamber 40 formed on the upper side, the lower plate 60 is the air discharged from the cooking chamber 40 inlet hole When the cooking chamber 40 is discharged to the outside through the 42, a plurality of bottom exhaust mechanisms 61 are formed therein so as to discharge them to the outside of the microwave oven.

In addition, four corners of the bottom of the bottom plate 60 are provided with a pedestal 70 fastened to the bottom plate 60 by a screw 71 so as to fix the microwave oven to the bottom of the installation. Due to the installation of the pedestal 70, the bottom of the microwave oven is spaced apart from the installation bottom surface, so that the air discharged from the cooking chamber 40 may be discharged downward through the bottom exhaust port 61. However, since the air discharged from the cooking chamber 40 is hot hot air, it may give anxiety to the user. Therefore, the guard member 80 is provided in front of the lower plate 60 to block the air discharged to the front.

The guard member 80 has a fastening hole 82 through which the screw 71 can pass through the coupling surface 81 in close contact with the lower surface so as to be coupled to the bottom surface of the lower plate 60. Is formed. In addition, the windshield 83 bent downward from the engagement surface 81 is provided to substantially match the height between the lower plate 60 and the installation bottom surface. In addition, the side surfaces provided on both sides of the coupling surface 81 and the lower surface is connected to the coupling surface 81 and the lower surface to secure the structure of the guard member 80.

The microwave oven configured as described above cooks a high-frequency cooked object irradiated from the magnetron 51 into the cooking chamber 40, and at the same time, the blower fan 52 operates to bring the external air into the interior of the electrical equipment room 50. Forced convection cools the magnetron 51 and the high-pressure transformer (not shown) that generate high heat during operation. Some of the air is introduced into the cooking chamber 40 and is discharged to the outside of the cooking chamber 40 through the discharge hole 43 in a state containing moisture inside the cooking chamber 40. The air passing through the discharge hole 43 discharges the rear surface of the inner case 20 and the bottom exhaust port 61 of the lower plate 60 to the outside so that the moisture in the cooking chamber 40 is discharged to the outside. At this time, the air discharged to the outside through the bottom exhaust port 61 of the lower plate 60 is discharged to both sides and rearward direction because the discharge to the front is blocked by the guard member (80).

However, such a microwave oven requires a plurality of screws and a plurality of processes to install the pedestal and the guard member on the lower plate. That is, a plurality of screws for coupling one guard member and four pedestals to the lower plate is required, and a process of attaching and fastening each member to the lower plate occurs. As a result, since the pedestal and the guard member are coupled to the lower plate in such a large number of parts and many processes, there is a problem in that the production cost and the production process are increased.

The present invention is to solve such a problem, an object of the present invention is to provide a guard member installed in the lower front of the case and the support provided integrally on both sides of the front of the case bottom to reduce the production cost and production process It is to provide a microwave.

1 is an exploded perspective view of a conventional microwave oven.

2 is an exploded perspective view of a microwave oven according to the present invention.

Figure 3 is a side cross-sectional view showing the main portion of the guard member in accordance with the present invention.

Explanation of symbols on the main parts of the drawings

110: case 120: inner case 160: bottom plate

165: Installation 170: Base 180: Guard member

190: support 191: coupling hole 192: reinforcing member

193: windshield

The present invention for achieving the above object, in the microwave oven having a case provided with a plurality of pedestal on the bottom, the guard member is installed on the bottom of the case so as to block between the front bottom and the installation bottom surface of the case. The guard member is characterized in that the support portion for supporting the case on both sides of the inner side is provided so as to be spaced apart fixed to the installation bottom surface of the front side of the case.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. Figure 2 is an exploded perspective view of a microwave oven according to the present invention, Figure 3 is a side cross-sectional view showing the main portion of the coupling of the guard member according to the present invention.

The microwave oven according to the present invention includes an inner case 120 in which a cooking chamber 140 and an electrical equipment compartment 150 are formed therein, and an outer case 130 provided to cover the outside of the inner case 120. The case 110 is provided to form the appearance of the microwave oven. The door 145 and the control panel 155 are provided in front of the cooking chamber 140 and the electrical equipment compartment 150.

The cooking chamber 140 is provided on the left side of the inner case 120 to accommodate the cooked object. The cooking chamber 140 opens the front to form an inlet, and the cooking dish 141 for rotating the cooked food rotates therein. It is installed to be possible. In addition, a plurality of inflow holes 142 are provided in the right side of the cooking chamber 140 to introduce a part of the air introduced into the electrical equipment compartment 150 into the cooking chamber 140. In addition, a plurality of discharge holes 143 are formed in the left side of the cooking chamber 140 to discharge the moisture evaporated when cooking the cooked product together with the air introduced from the outside to the cooking chamber 140. The air discharged to the outside of the cooking chamber 140 is discharged to the outside of the microwave oven through the plurality of rear exhaust pipes 121 provided on the rear side of the inner case 120 and the bottom exhaust pipe 161 provided on the bottom surface.

The door 145 is installed at the front of the inner case 120 in front of the cooking chamber 140 so that the cooking chamber 140 can be opened and closed, and one end rotates with the hinge 146 installed at the upper left and lower ends of the inner case 120. Possible coupling is provided as a fixed end, and the other end is rotated around the hinge 146 to open and close the cooking chamber 140.

The electrical equipment room 150 is formed on the right side of the inner case 120, and a high voltage transformer (mido) that applies a high voltage to the magnetron 151 and the magnetron 151 that oscillate a high frequency inside and radiate to the cooking chamber 140. Electrical equipment, such as H.), and a blowing fan 152 is installed at the rear to forcibly convection the outside air into the cooking chamber 140 to cool the heat generated during the operation of the magnetron 151 and the high voltage transformer (not shown). Let's do it.

The control panel 155 is formed to protrude toward the front of the electrical equipment compartment 150, and a plurality of operation buttons 156 are provided on the front thereof to operate the opening and closing of the door 145 and the operation of the microwave oven.

On the other hand, the lower plate 160 forming the bottom of the microwave oven is provided with a guard member 180 which is a characteristic component of the present invention. This will be described in detail as follows.

The bottom surface of the inner case 120 is provided as a lower plate 160 which is installed spaced apart from the cooking chamber 140 formed at an upper side thereof, the lower plate 160 is the air discharged from the cooking chamber 140 inlet hole 142 When the cooking chamber 140 is discharged to the outside through a plurality of bottom exhaust mechanism 161 is formed therein to be discharged to the outside of the microwave oven.

The bottom surface of the lower plate 160 is spaced apart from the bottom surface on which the microwave oven is installed by a predetermined interval so that the air discharged from the cooking chamber 140 may be discharged downward through the bottom exhaust mechanism 161. To this end, two pedestals 170 are coupled to the lower plate 160 as screws 171 at each corner behind the lower plate 160, and a guard member 180 is provided in front of the lower plate 160.

The guard member 180 is provided to block the air discharged forward through the bottom exhaust 161 while separating the microwave from the bottom surface together with the pedestal 170. That is, since the air discharged from the cooking chamber 140 is hot hot air, when the hot air comes into contact with the user, the user feels an anxiety that causes discomfort.

The guard member 180 is a plastic injection molding provided integrally and is provided as a shape in which the front windshield 193 is formed in multiple stages in an inward direction and the upper side protrudes forward. And both sides of the windshield 193 inside the support portion 190 having a coupling hole 191 to which the screw 171 is fastened so as to be coupled to the installation hole 165 provided on the bottom surface of the lower plate 160 Is formed. The support 190 is provided with a circular tube to support the case 110 upward. In addition, the outer side of the support 190 is provided with a reinforcing member 192 connecting the inside and the side of the guard member 180 by connecting the inside of the guard member 180 in the lateral direction. The reinforcing member 192 prevents the guard member 180 from twisting. And both sides of the guard member 180 is connected to close the sides of the windshield 193 and the reinforcing member 192 is firmly supported.

The microwave oven configured as described above is provided with a guard member 180 at the front of the lower surface, and two pedestals 170 at the rear thereof so that the case 110 and the installation bottom are separated from each other. ) To shield between the bottom of the front and the bottom of the installation. When power is applied to the microwave oven, the high frequency irradiated from the magnetron 151 into the cooking chamber 140 cooks the cooked product, and at the same time, the blower fan 152 operates to operate the external air in the electrical equipment compartment 150. Forced convection inside Part of the introduced air cools the magnetron 151 and the high-pressure transformer (not shown) that generate high heat during operation, and the other part of the air flows into the cooking chamber 140 to contain moisture generated by cooking of the workpiece. It is discharged to the outside of the cooking chamber 140 through the discharge hole (143). In addition, the air passing through the discharge hole 143 is discharged to the outside through the back of the inner case 120 and the bottom of the lower plate 160 and the bottom of the exhaust outlet 161, the moisture in the cooking chamber 140 to the outside Will be discharged. At this time, the air discharged to the outside through the bottom exhaust port 161 of the lower plate 160 is discharged to both sides and the rear side because the discharge to the front is blocked by the guard member 180.

As described above in detail, the microwave oven according to the present invention is easily installed because the support member for supporting the front side of the bottom of the microwave oven is integrally formed with the guard member closing the front lower side. That is, by installing the support of the guard member, which is provided as an integral injection molding, on the lower plate by using a screw, the hot air is blocked and the separation from the installation bottom surface of the case is simultaneously performed. As such, since the number of parts for installation and the assembly process are reduced, there is an advantage of reducing the production cost.

Claims (2)

In a microwave oven having a case provided with a plurality of pedestal on the bottom, the guard member is installed on the bottom of the case so as to block between the front bottom of the case and the mounting bottom surface, The guard member is a microwave oven, characterized in that the support portion for supporting the case on both sides of the inside is provided so that the bottom of the front side of the case can be fixed to the installation bottom surface. The method of claim 1, The support part is a microwave oven, characterized in that the coupling hole is provided with a screw is fastened therein so as to couple the guard member to the case.