KR20090099811A - Microwave oven - Google Patents

Abstract

PURPOSE: A microwave oven is provided to improve cooling performance and prevent damage to automotive electric parts due to the degradation of the cooling performance by preventing the air of high temperature ejected through an outlet from being sucked in an inlet again. CONSTITUTION: A microwave oven comprises a main body(100), an outer case(112), a cavity(111), a cover(120), a shielding member(130), an outlet(118), and an inlet. On the upper part of the cavity, an electric field chamber is formed. The electric field chamber is formed by being covered with the upper part of the cavity and the outer case. The outlet communicates a space part with the outside of the microwave oven. The outlet is formed in the cavity. The inlet is formed on the cover. The cover is formed at the rear part of the outside of the cavity. The shielding member is equipped to block the gap between the inlet and the outlet.

Description

Microwave {MICROWAVE OVEN}

The present invention relates to a microwave oven, and more particularly to a microwave oven to perform cooking using a high frequency.

Various kinds of apparatuses have been proposed to date as heating apparatuses for heating foods. The most basic heating device is a container that is in direct contact with the heat source, the contents to be cooked in such a container can be cooked by applying heat to heat.

In addition, many types of cooking apparatuses that use electric energy directly or indirectly have been developed. As an example, a microwave oven using microwaves as a heating source may be mentioned. A microwave oven is a cooking apparatus that generates microwaves using electricity to infiltrate a cooking object and heats the cooking object by causing molecular motion therein.

A common microwave oven is a kitchen appliance that heats the inside and outside of the microwave by irradiating the high frequency of the magnetron to the food at the same time, significantly reducing the cooking time of the food due to high thermal efficiency, and losing the nutritional value during cooking, thawing and warming of the food. It is also widely used because of the advantages such as cooking directly while the food is stored in the container.

1 is a bottom perspective view of a microwave oven according to the prior art.

Referring to FIG. 1, the microwave oven 10 according to the related art includes a cavity 11 and an outer case 12.

A cooking chamber (not shown) is formed inside the cavity 11, and an electrical equipment chamber is formed above the cooking chamber surrounded by the outer case 12. A convection cover 13 is provided on the rear surface of the cavity 11, and a convection heater (not shown), a convection fan (not shown), and the like are provided in the convection cover 13.

In addition, the convection cover 13 is provided with a cooling fan (not shown) for sucking the outside air to cool the electric components inside the electric compartment.

According to the microwave oven according to the prior art, the outside air is introduced into the convection cover 13 through the inlet 14 by the operation of the cooling fan, the air introduced into the convection cover 13 drives the convection fan. It flows into the electric compartment while cooling the convection motor.

The air introduced into the electrical equipment compartment is introduced into the cooking compartment after cooling the electrical components inside the electrical equipment compartment, and the air introduced into the interior of the electrical compartment is located at the sides and the outside of the cavity 11 through the discharge hole (not shown) formed at the side of the cooking compartment. It flows to the space formed between the case 12 and is discharged to the outside through the exhaust port 15 formed in the bottom of the cavity (11).

By the above process, the air introduced into the microwave oven through the inlet 14 is heated to a high temperature while flowing inside the microwave oven and is discharged through the exhaust port 15.

According to the microwave oven according to the prior art as described above, since the exhaust port is formed adjacent to the lower portion of the inlet port, the hot air discharged through the exhaust port is sucked back into the inlet port, thereby causing a problem that the cooling performance is significantly reduced. Therefore, there is a need for improvement.

The present invention has been made to improve the above problems of the prior art, and an object of the present invention is to provide a microwave oven having an improved structure such that the hot air discharged through the exhaust port is not sucked back into the inlet port.

A microwave oven according to the present invention comprises: a cavity in which an exhaust port is formed; A cover provided outside the cavity and having an inlet; And a shielding member blocking the exhaust port and the intake port.

Here, the shielding member is preferably formed integrally with the cavity so as to protrude from the cavity.

In addition, the cover is provided on the rear of the cavity, the inlet is preferably formed in the lower and side of the cover.

In addition, the exhaust port is formed on the bottom surface of the cavity, the shielding member is preferably provided on the bottom surface of the cavity to surround the exhaust port.

In addition, the shielding member is preferably provided on the rear and side of the bottom of the cavity.

In addition, it is preferable that a convection assembly is further provided inside the cover.

In addition, it is preferable that a cooling fan is further provided inside the cover.

In addition, the microwave oven according to the present invention includes: a cavity having an electric equipment chamber formed at an upper portion thereof, a cooking chamber communicating with the electric equipment chamber formed therein, and an exhaust port communicating with the outside of the cooking chamber formed at a bottom thereof; A cover provided at a rear surface of the cavity to communicate with the inside of the electric chamber and having an air intake; And a shielding member formed integrally with the cavity and protruding from the bottom surface of the cavity to block the gap between the exhaust port and the intake port.

Here, the shielding member is preferably provided at the rear and side of the bottom of the cavity.

According to the microwave oven of the present invention, even if the exhaust port is formed adjacent to the inlet port, the shielding member for blocking between the exhaust port and the inlet port is blocked so that hot air discharged through the exhaust port is not discharged to the inlet port side, so that the high temperature discharged through the exhaust port is maintained. There is no fear that hot air will be sucked back into the intake port.

Accordingly, the microwave oven according to the present embodiment, as well as the cooling performance is improved, it provides an effect that can prevent the performance degradation and damage of electrical components, such as due to the decrease in cooling performance.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a microwave oven according to the present invention. For convenience of description, the thicknesses of the lines and the size of the elements shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

2 is a bottom perspective view showing a portion of a microwave oven according to an embodiment of the present invention, Figure 3 is a side cross-sectional view of the microwave oven shown in Figure 2, Figure 4 is a front sectional view of the microwave oven shown in Figure 2 5 is a bottom view of the microwave oven shown in FIG. 2.

2 to 4, the microwave oven 100 according to an embodiment of the present invention includes a main body 110, a cover 120, and a shielding member 130.

The main body 110 includes a cavity 111 and an outer case 112. In the upper part of the cavity 111, the electric chamber 113 is formed. The electrical compartment 113 is a space formed by the upper part of the cavity 111 and the outer case 112, and the electrical component such as a magnetron (not shown) and a high pressure transformer (not shown) are disposed in the electrical compartment 113. .

Inside the cavity 111, a cooking chamber 114 is formed. The cooking chamber 114 is disposed below the electrical equipment chamber 113 and communicates with the electrical equipment chamber 113 through an inflow hole 115 formed between the electrical equipment chamber 113. In addition, a discharge hole 116 is formed at the side of the cooking chamber 114. On the side of the cavity 111, a space portion 117 surrounded by the side of the cavity 111 and the outer case 112 is formed, the interior of the cooking chamber 114 through the discharge hole 116 and the space portion 117 and Communicating.

The exhaust port 118 is formed in the bottom face of the cavity 111. The exhaust port 118 communicates the space 117 with the outside of the microwave oven 100, thereby ultimately communicating the inside of the cooking chamber 114 with the outside of the microwave oven 100.

The cover 120 is provided on the outer rear side of the cavity 111. In the cover 120, a space part 122 surrounded by the cover 120 and the rear surface of the cavity 111 is formed, and the space part 122 communicates with the electric compartment 113. In the lower and side portions of the cover 120, an inlet 124 is formed to communicate the space 122 inside the cover 122 with the outside.

Meanwhile, the convection assembly 140 may be provided in the space 122 inside the cover 120. The convection assembly 140 includes a convection heater (not shown) and a convection fan (not shown) which draws in air inside the cooking chamber 114 and introduces air heated by the convection heater into the cooking chamber 114. And a motor (not shown) for driving the convection fan.

In addition, a cooling fan 150 is further provided in the space portion 122 inside the cover 120. The cooling fan 150 flows outside air into the space 122 inside the cover 120 through the inlet 124 and then flows into the electric compartment 113 and the cooking chamber 114. .

The shielding member 130 is provided to block between the exhaust port 118 formed in the cavity 111 and the inlet port 124 formed in the cover 120. The shielding member 130 may be provided on the bottom surface of the cavity 111 to surround the exhaust port 118.

The shielding member 130 is provided at the rear and side portions of the bottom surface of the cavity 111 to block the air discharged from the exhaust port 118 from being discharged to the rear and side portions of the bottom surface of the cavity 111 so as to exhaust the exhaust port 118. Air discharged from the guide to be discharged to the front of the bottom of the cavity 111.

The shielding member 130 as described above is integrally formed with the cavity 111 to protrude downward from the bottom surface of the cavity 111. The shielding member 130 may be formed together with the cavity 111 by forming the cavity 111 together with the cavity 111 in the forming process, without a separate part fabrication process and an assembly process.

3 to 5, the operation and effects of the microwave oven 100 according to an embodiment of the present invention will be described.

According to the microwave oven 100 according to the present embodiment as shown in FIG. 3, when the cooking fan is operated for operation, the cooling fan 150 operates, and outside air passes through the intake port 124. It flows into the interior space 122. As such, the air introduced into the space 122 is sucked by the cooling fan 150 while cooling the motor of the convection assembly 140, and then discharged into the electric chamber 113 through the inlet hole 115.

The air discharged to the electric compartment 113 is cooled in the electric components inside the electric compartment 113 and introduced into the cooking compartment 114, and the air introduced into the cooking compartment 114 is shown in FIG. 4. Through the discharge hole 116 is discharged to the space portion 117 formed on the side of the cavity 111. The air discharged to the space 117 and the air discharged to the space 117 are discharged to the outside through the exhaust port 118 formed on the bottom surface of the cavity 111.

The air having the above flow is heated to a high temperature during the flow in the microwave oven 100 in the cooled state before being intaken into the microwave oven 100, thereby changing to hot air, and thus the exhaust port 118. ), Hot air is discharged.

As shown in FIG. 5, the hot air discharged as described above is guided by the shielding member 130 formed on the bottom surface of the cavity 111. In more detail,

A shielding member 130 is formed on the bottom surface of the cavity 111, and the shielding member 130 is formed to surround the rear and side portions of the bottom surface of the cavity 111, and the exhaust opening 118 is formed by the shielding member 130. By blocking the rear and side portions of), the hot air discharged from the exhaust port 118 is blocked from the rear and side flows of the cavity 111, and the flow is guided only in the front direction of the cavity 111. That is, the hot air discharged from the exhaust port 118 can be discharged only in the front direction of the cavity 111.

According to the microwave oven 100 of the present embodiment as described above, even if the exhaust port 118 is formed adjacent to the inlet port 124, by the shielding member 130 for blocking between the exhaust port 118 and the inlet port 124, the exhaust port Since the hot air discharged through the 118 is blocked from being discharged to the intake port 124 side, there is no fear that the hot hot air discharged through the exhaust port 118 is sucked back into the intake port 124.

Accordingly, the microwave oven 100 according to the present embodiment provides an effect of improving cooling performance and preventing performance degradation and damage of electrical components due to cooling performance deterioration.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a bottom perspective view of a microwave oven according to the prior art.

2 is a bottom perspective view showing a portion of a microwave oven according to an embodiment of the present invention.

3 is a side cross-sectional view of the microwave oven shown in FIG. 2.

4 is a front sectional view of the microwave oven shown in FIG. 2.

5 is a bottom view of the microwave oven illustrated in FIG. 2.

Explanation of symbols on the main parts of the drawings

100: microwave oven 110: main body

111: Cavity 112: Outer Case

113: battlefield room 114: cooking room

115: inlet hole 116: outlet hole

117,122: space 118: exhaust port

120: cover 124: intake vent

130: shielding member 140: convection assembly

150: cooling fan

Claims (9)

A cavity in which an exhaust port is formed; A cover provided outside the cavity and having an inlet; And And a shielding member for blocking between the exhaust port and the intake port. The method of claim 1, And the shielding member is integrally formed with the cavity to protrude from the cavity. The method of claim 1, The cover is provided on the back of the cavity, the inlet is formed in the lower portion and the side of the microwave oven. The method of claim 1, The exhaust port is formed on the bottom surface of the cavity, the shield member is provided in the cavity bottom surface to surround the exhaust port. The method of claim 4, wherein The shielding member is provided in the rear and the side of the bottom of the cavity, the microwave oven. The method of claim 1, Inside the cover, a microwave oven, characterized in that the convection assembly is further provided. The method of claim 1, Inside the cover, a microwave, characterized in that the cooling fan is further provided. A cavity in which an electric equipment chamber is formed at an upper portion, a cooking chamber communicating with the electric equipment chamber is formed therein, and an exhaust port for communicating the cooking chamber with the outside is formed at a bottom surface thereof; A cover provided at a rear surface of the cavity to communicate with the inside of the electric chamber and having an air intake; And And a shielding member integrally formed with the cavity and protruding from a bottom surface of the cavity to block the gap between the exhaust port and the intake port. The method of claim 7, wherein The shielding member is provided in the rear and the side of the bottom of the cavity, the microwave oven.

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