KR200189531Y1 - Microwave oven - Google Patents

Abstract

The present invention relates to a microwave oven having a main body having a cooking chamber and a parts chamber, a blowing fan provided in the parts chamber to blow external air, and an outer casing surrounding the main body to form an exterior. A guide duct having a back inlet and a side inlet; It is formed so as to penetrate the plate surface on the back and side of the outer casing, characterized in that it comprises a back air suction hole and a side air suction hole for introducing external air into the back inlet and the side inlet. As a result, a relatively large amount of air can be introduced into the main body, thereby reducing dew condensation that may occur inside the cooking chamber, and effectively inhaling and exhausting air.

Description

Microwave oven

The present invention relates to a microwave oven, and more particularly, a main body having a cooking chamber and a parts chamber, a blowing fan provided in the parts chamber to blow external air, and an outer casing surrounding the main body to form an exterior. It relates to a microwave oven having.

3 is an exploded perspective view of a conventional microwave oven, and FIG. 4 is a partially cutaway cross-sectional view of an enlarged blower fan area according to an assembled state of the microwave oven of FIG. 3. As shown in these figures, the conventional microwave oven 101 includes a main body 103 forming the cooking chamber 105 and a component chamber 107, and an outer casing surrounding the main body 103 to form an external appearance ( 109). The outer casing 109 surrounds the main body 103 together with the front casing 111 and the rear casing 113 which block the front and rear of the main body 103, and the front casing 111 and the rear casing 113. It has an inverted '∪' type side casing 115 which forms an external appearance of a microwave oven.

The cooking chamber 105 is formed in the left region with respect to the front surface, and the tray 114 in which food is seated is accommodated in the cooking chamber 105, and a viewing window for viewing the inside of the cooking chamber 105 in the front of the cooking chamber 105. The door 108 is formed to open and close the front opening. In addition, a plurality of intake holes penetrating through the cooking chamber 105 and the component chamber 107 are supplied to the side wall 117 that divides the cooking chamber 105 and the component chamber 107 into the cooking chamber 105. 119 is formed.

The component chamber 107 has an HVT 121 for generating a high voltage in response to the supply of power, an HVC 123 for charging a high voltage from the HVT, and an electromagnetic wave in response to the voltage supply from the HVC 123 for the cooking chamber ( A magnetron 125 to be supplied into 103 is attached.

On the other hand, a blower fan 130 for cooling the heat generated during operation of the component parts is installed in the rear casing 113 on the component chamber 107 side, and the rear casing 113 on the component chamber 107 side. A plurality of air inlet holes 131 penetrating the plate surface is formed. Between the blower fan 130 and the air inlet hole 131 is formed at a position corresponding to the air inlet hole 131 and the air inlet hole 131 to suck the air introduced from the air inlet hole 131 A guide duct 133 having a rear suction port 135 is provided. The guide duct 133 is provided with a discharge hole 137 formed to discharge the air introduced through the rear suction port 135 through the air inlet hole 131 to the component chamber 107.

By such a configuration, the air introduced through the air inlet hole 131 formed in the rear casing 113 is guided to the blowing fan side via the rear suction port 135 of the guide duct. The inflow air guided to the blowing fan side is easily supplied to the parts chamber 107 through the discharge hole 137 by the rotation operation of the blowing fan 130, and thus, the HVT 121 provided in the parts chamber 107. ), The heat generated by the HVC 123 and the magnetron 125 can be cooled. In addition, the air discharged through the discharge hole 137 is supplied into the cooking chamber 105 through the intake hole 119 formed in the side wall 117, and thus the hot and humid air inside the cooking chamber 105 is supplied to the rear of the cooking chamber. It may be discharged to the outside through the exhaust hole 139 formed on the upper surface.

By the way, in the conventional microwave oven, the air is introduced into the component chamber through the air inlet hole formed in the rear wall surface of the component chamber, and the air introduced through the air inlet hole cools the component parts of the component chamber and the side wall of the cooking chamber. Since the air is guided into the cooking chamber through the intake hole formed in the air, the introduced air passes through a large flow path.

As a result, the amount of air introduced into the cooking chamber is relatively small, and the circulation of the hot and humid air inside the cooking chamber is not smoothly performed, and thus the moisture inside the cooking chamber, especially the inner surface of the door, may be filled. .

Accordingly, it is an object of the present invention to provide a microwave oven that allows a relatively large amount of air to flow into the component chamber and supply it to the cooking chamber, thereby smoothly circulating the air.

1 is an exploded perspective view of a microwave oven according to the present invention;

FIG. 2 is a partial cutaway cross-sectional view of an enlarged blower fan area in an assembled state of the microwave oven of FIG.

3 is an exploded perspective view of a conventional microwave oven,

4 is an enlarged partial cutaway cross-sectional view of the blowing fan area according to the assembled state of the microwave oven of FIG. 3.

<Explanation of symbols for the main parts of the drawings>

1: microwave 3: body

5: cooking chamber 7: parts chamber

8: door 9: outer casing

11: front casing 13: rear casing

15: side casing 17: side wall

19: air passage 30: blowing fan

31: back inflow hole 33: guide duct

35: rear air inlet 37: air exhaust

39: side air inlet 41: guide

43: side inlet hole

The object of the present invention is a microwave oven having a main body having a cooking chamber and a component chamber, a blowing fan provided in the component chamber for blowing external air, and an outer casing surrounding the main body to form an exterior. A guide duct surrounding the blowing fan and having a rear inlet and a side inlet; It is formed by a microwave oven characterized in that it is formed so as to penetrate the back surface and the side surface of the outer casing and the rear air inlet and the side air suction hole and the outside air inlet to the side inlet.

Here, the guide guide is provided between the side inlet and the side inlet in the longitudinal direction of the side inlet to guide the air introduced into the side inlet to the side inlet.

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

1 is an exploded perspective view of a microwave oven according to the present invention, and FIG. 2 is a partially cutaway plan cross-sectional view illustrating a blower fan area according to an assembled state of the microwave oven of FIG. 1. As shown in these figures, the present microwave oven 1 includes a main body 3 forming the cooking chamber 5 and a component chamber 7, and an outer casing 9 surrounding the main body 3 to form an appearance. Has The outer casing (9) surrounds the main body together with the front casing (11) and the rear casing (13) which block the front and rear of the main body (3), and the front casing (11) and the rear casing (13). Side casing 15,

The cooking chamber 5 is formed in the left region with respect to the front surface, and the tray 14 in which food is placed is accommodated in the cooking chamber 5, and the inside of the cooking chamber 5 is exposed to the front of the cooking chamber 5. The viewing window 10 is formed there is provided a door 8 for opening and closing the front opening. In addition, a plurality of air passing holes penetrate the cooking chamber 5 and the component chamber 7 to the side walls 17 partitioning the cooking chamber 5 and the component chamber 7 so that air from the outside flows into the cooking chamber 5. (19) is formed.

The component chamber 7 has an HVT 21 for generating a high voltage in response to the supply of power, an HVC 23 for charging a high voltage from the HVT, and an electromagnetic wave in response to the voltage supply from the HVC 23 for the cooking chamber ( 5) The magnetron 25 to be supplied is attached.

On the other hand, a blower fan 30 for cooling the heat generated during operation of the component parts is provided in the rear casing 13 on the component chamber 7 side, and the rear casing 13 on the component chamber 7 side. A plurality of back inlet holes 31 penetrating the plate surface are formed. Between the blower fan 30 and the rear inlet hole 31, the air is formed at a position corresponding to the rear inlet hole 31 and corresponding to the rear inlet hole 31 to suck air introduced from the rear inlet hole 31. A guide duct 33 having a rear air suction port 31 is provided. The guide duct 33 allows air introduced into the guide duct 33 through the back air inlet 35 through the back inlet hole 31 to be discharged to the component chamber 7 by the rotation of the blower fan 30. An air exhaust hole 37 is provided at a position opposite to the rear air suction opening 35. A side air inlet 39 is formed on the side surface of the guide duct 33 along the transverse direction of the blowing fan 30 to introduce external air. The side casing 15 has a side inlet hole 43 formed therethrough so as to penetrate the plate surface at a position corresponding to the side air inlet 39 formed in the guide duct 33. At this time, between the side inlet hole 43 of the side casing 15 and the side air inlet 39 of the guide duct 33 is interposed along the longitudinal direction of the side air inlet 39 through the side inlet hole 43. A guide guide 41 for guiding the introduced air to the side air inlet 39 is provided.

By such a configuration, the air introduced through the back inlet hole 31 and the side inlet hole 43 passes through the back air inlet 35 and the side air inlet 39 of the guide duct 33. It is guided to the component chamber 7 through the air discharge hole 37 of 33). The inlet air guided to the component chamber 7 can cool the component parts provided in the component chamber 7 and into the cooking chamber 5 via the air passage hole 19 formed in the side wall 17. Supplied.

Since air flows into the component chamber 7 through the rear air inlet 35 and the side air inlet 39, a relatively large amount of air is introduced and accommodated in the component chamber 7 as compared with the conventional microwave oven. Not only can the appliance parts be easily cooled, but also a relatively sufficient amount of air can be smoothly supplied into the cooking chamber 7. Since sufficient air is supplied to the inside of the cooking chamber 5, the hot and humid air of the cooking chamber 5 can be easily discharged to the outside, so that dew condensation occurs in the interior of the cooking chamber, particularly in the region of the viewing window 10 of the door. You can prevent it.

In this way, the guide duct surrounding the blowing fan and having a back inlet area and a side inlet area, and formed to penetrate the plate surface on the back and side of the outer casing to introduce external air into the back inlet area and the side inlet area. By providing an air inlet, a relatively large amount of external air can be supplied into the cooking chamber.

As described above, according to the present invention, a relatively large amount of air can be introduced into the main body, thereby reducing dew condensation that may occur inside the cooking chamber, and a microwave oven capable of effectively inhaling and exhausting air is provided. do.

Claims (2)

In a microwave oven having a main body having a cooking chamber and a component chamber, a blowing fan provided in the parts chamber for blowing external air, and an outer casing surrounding the main body to form an exterior, A guide duct surrounding the blowing fan and having a rear inlet and a side inlet; And a rear air suction hole and a side air suction hole which are formed to penetrate the back surface and the side surface of the outer casing to introduce external air into the rear inlet and the side inlet. The method of claim 1, And a guide guide interposed between the side inlet and the side inlet along the longitudinal direction of the side inlet to guide the air introduced into the side inlet to the side inlet.