KR100373091B1 - Microwave oven - Google Patents

Abstract

The present invention relates to a microwave oven having a main body, a cooking chamber and a component chamber, which are formed to be isolated from each other in the main body, wherein a suction part is formed in the lower front region of the component chamber so that external air can be introduced therein; The blower fan assembly which blows toward the rear side is provided in the inner one area | region of the said component chamber which adjoins the said suction part. As a result, a microwave oven having improved cooling performance inside the component chamber is provided.

Description

Microwave oven {MICROWAVE OVEN}

The present invention relates to a microwave oven, and more particularly, to a microwave oven having an improved cooling structure of a component compartment.

Figure 4 is a perspective view of a conventional microwave oven, Figure 5 is a side cross-sectional view of FIG. As shown in these figures, the conventional microwave oven has a main body 101 in which the cooking chambers 111 and the component chambers 120 are separated from each other, and an inverted "U" character arranged to surround the main body 101. It has an outer casing 103 in shape.

In front of the main body 101, a door 105 for rotating and opening the front opening of the cooking chamber 111 and an operation panel 107 for operating a microwave oven are provided, and the main body 101 in the rear region of the operation panel 107 is provided. Inside the component chamber 120 is formed a plurality of parts for the operation of the microwave oven.

In the component chamber 120, a magnetron 121 for outputting microwaves and supplying them to the cooking chamber 111, a high voltage transformer 123 and a high voltage capacitor 125 for applying a high voltage to the magnetron 121 are installed. The rear wall surface of the component chamber 120 is provided with a blowing fan assembly 130 that sucks outside air and blows it toward the interior of the component chamber 120.

In addition, the partition wall partitioning the cooking chamber 111 and the component chamber 120 is provided with an air duct 135 for guiding air from the blower fan assembly 130 into the cooking chamber 111, and has a rear surface of the main body 101. The air discharge port (not shown) is formed to allow the air introduced into the cooking chamber 111 through the air duct 135 to escape to the outside together with the air inside the cooking chamber 111.

On the other hand, the blower fan assembly 130 is a blower fan housing 131 is installed on the rear wall surface of the component chamber 120, and the air inlet hole is accommodated in the blower fan housing 131 formed on the rear wall surface of the component chamber 120 ( 151 has a blower fan 133 that sucks outside air and blows the air toward the inside of the component chamber 120.

The blower fan housing 131 accommodates the blower fan 133 and has a cylindrical blower guide 143 formed at the front and the rear of the blower outlet and the inlet, respectively, and a blower fan 133 is installed inside the blower guide 143. It has a fan installation unit 141, the blowing fan 133 is accommodated in the fan motor 145 and the blowing guide 143 installed in the fan installation unit 141 and rotated by the fan motor 145 It has a fan blade 147.

By such a configuration, when the microwave oven is operated, the blowing fan assembly 130 sucks outside air through the air inlet hole 151 on the rear wall of the component chamber 120 and blows the air toward the interior of the component chamber 120. The overheating of the parts, such as the magnetron 121 and the high-voltage transformer 123, and suppresses the temperature rise inside the component chamber 120.

In addition, the air blown from the blower fan assembly 130 is introduced into the cooking chamber 111 through the air duct 135, and then contains a food smell generated inside the cooking chamber 111 to form an air outlet (not shown). Will be discharged to the outside.

By the way, in such a conventional microwave oven, a blowing fan assembly is formed on the rear wall surface of the component chamber. Since it is installed at the rear of the parts chamber so that the outside air can be sucked through the air inlet, when the installation position of the microwave oven is arranged to be adjacent to the wall, as shown in FIG. Will not flow into the In addition, there is a fear that hot air discharged from the air outlet formed on the rear surface of the main body may not be discharged to the outside by the wall and re-introduced into the component chamber through the air inlet.

As a result, the inside of the component chamber is not effectively cooled, and there is a problem in that device parts, including the magnetron, fail.

Accordingly, an object of the present invention is to provide a microwave oven capable of improving the cooling performance inside the component chamber.

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

2 is an exploded perspective view illustrating an enlarged blower fan installation area of FIG. 1;

3 is a side cross-sectional view of FIG.

4 is a perspective view of a conventional microwave oven,

5 is a side cross-sectional view of FIG. 4.

* Explanation of symbols for the main parts of the drawings

1: body 11: cooking chamber

7: part room 21: magnetron

33: latching member 35: air duct

30: blower fan assembly 31: blower fan housing

33: blower fan 50: suction unit

51: suction port 53: space keeping member

The object is, according to the present invention, in the microwave oven having a main body, a cooking chamber and a component chamber formed to be isolated from each other in the main body, the suction portion is formed in the front lower region of the component chamber so that outside air can be introduced And; It is achieved by a microwave oven, characterized in that the blowing fan assembly for blowing toward the rear is provided in one inner region of the component chamber adjacent to the suction unit.

Here, the blowing fan assembly is preferably inclined so as to blow toward the rear and rear upper region of the component chamber.

The suction part may have a suction hole penetrating the bottom surface of the component chamber and a space keeping member provided at a lower surface of the main body so that a space is formed between the suction port and a predetermined mounting surface on which the main body is installed. to be.

On the other hand, it is more preferable that the blower fan assembly has a blower fan and a blower fan housing accommodating the blower fan.

In addition, a latching member having a latching part for latching provided on one side of a door opening and closing the front opening of the cooking chamber, and an air duct integrally formed in an upper region of the latching member in the inner front area of the component chamber. Installed; The blowing fan housing is more effectively formed integrally with the lower portion of the air duct.

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

1 is a perspective view of a microwave oven according to the present invention, FIG. 2 is an exploded perspective view illustrating an enlarged blower fan installation area of FIG. 1, and FIG. 3 is a side cross-sectional view of FIG. 1. As shown in these figures, the microwave oven according to the present invention includes a main body 1 in which a cooking chamber 11 and a component chamber 20 are formed, which are separated from each other, and an inverse station disposed so as to surround the main body 1. It has an outer casing 3 having a U " shape.

In front of the main body 1, a door 5 for rotating and opening the front opening of the cooking chamber 11 and an operation panel 7 for operating a microwave oven are provided, and the main body 1 in the rear region of the operation panel 7 is provided. Inside the component chamber 20 is formed a plurality of components for the operation of the microwave oven.

In the component chamber 20, equipment components such as a magnetron 21 for outputting microwaves and supplying them to the cooking chamber 11 and a high voltage transformer 23 and a high voltage capacitor 25 for applying a high voltage to the magnetron 21 are installed. In the inner front region of the component chamber 20, a latching member 33 having a latching portion 34 for latching provided on one side of the door 5 and an upper portion of the latching member 33. The air duct 35 is formed so as to guide the air blown from the blower fan assembly 30 to be described later into the cooking chamber 11 is provided in front of the above-mentioned device parts. In addition, an air outlet 13 is formed at a rear surface of the main body 1 to allow air introduced into the cooking chamber 11 through the air duct 35 to escape to the outside together with the air inside the cooking chamber 11.

Meanwhile, a suction part 50 is formed in the front lower region of the part chamber 20 so that external air can flow into the part chamber 20, and the part chamber 20 adjacent to the suction part 50 is formed. The blower fan assembly 30 which blows toward the back of the component chamber 20 is provided in the inside.

The suction unit 50 is provided on the suction port 51 penetrating the bottom surface of the front part of the component chamber 20 so that the outside of the component chamber 20 communicates with the outside, and the suction port 51 is provided on the lower surface of the microwave oven body 1. And a space keeping member 53 which forms a space between the predetermined installation surfaces on which the main body 1 is installed. Here, the space keeping member 53 is preferably formed of a foot member that is coupled to the lower surface of the microwave oven body (1).

The blower fan assembly 30 is accommodated in the blower fan housing 31 disposed in the lower region of the air duct 35 and the blower fan housing 31 and sucks external air from the inlet 51 so that the component chamber 20 It has a blowing fan 40 for blowing toward the inner rear of the).

The blower fan housing 31 is integrally formed at the lower portion of the air duct 35, and the blower fan 40 is formed inside the blower guide 43, and the blower fan 40 is opened inside the blower guide 43. It has a fan installation part 41 to be installed. The blower fan housing 31 is formed to be inclined so that the air blown from the blower fan 40 faces the rear and rear upper regions of the component chamber 20.

Here, the blower fan housing 31 may be provided as a separate component from the air duct 35 to be installed in the inner front region of the component chamber 20, but as shown in the drawing, latching is performed by injection molding. It is preferable to form integrally with the lower part of the air duct 35 so as to be integral with the member 33 and the air duct 35 to facilitate component reduction and manufacturing. In addition, although the blower fan housing 31 may be arranged in a vertical state, the installation position of the magnetron 21, which is relatively heat-generating among the device parts, is located in the middle upper region of the component chamber 20 in a general microwave oven. In consideration of this, as shown in the drawing, it may be more preferable to arrange the blower fan housing 31 inclined so that the blower air from the blower fan 40 is directed toward the rear upper region of the component chamber 20.

The fan 40 is a fan motor 45 installed in the fan installation part 41 of the blower fan housing 31 and a fan accommodated in the blower guide 43 and rotated by the fan motor 45. It has wings 47.

By such a configuration, the microwave oven according to the present invention, even if the installation position is arranged to be adjacent to the wall, as shown in Figure 3, the suction unit 50 and the blowing fan assembly 30 is the front of the component chamber 20 Since it is provided in the area, the inflow of external air is performed smoothly. As a result, when the microwave oven is operated, the blower fan assembly 30 sucks external air through the inlet port 51 formed at the bottom surface of the front part of the component chamber 20 so that the inside of the component chamber 20 is rearward. The air is blown toward the area, and the blown air effectively cools the machine parts such as the magnetron 21 and the high pressure transformer 23.

In addition, the air blown from the blower fan assembly 30 flows into the cooking chamber 11 through the air duct 35 and then contains the food smell generated inside the cooking chamber 11 through the air outlet 13. It will be discharged to the outside.

In this way, by preparing a suction unit so that the outside air flows into the front region of the component chamber, by arranging the blower fan assembly inside the component chamber front adjacent to the suction unit, the blowing air is blown to the rear of the component chamber, Regardless of the installation position of the microwave oven, the inside of the component compartment can be cooled effectively, thereby preventing the heat generation of the component parts including the magnetron, thereby preventing the failure of the component parts in advance.

As described above, according to the present invention, there is provided a microwave oven with improved cooling performance inside the component chamber.

Claims (5)

In a microwave oven having a main body, a cooking chamber and a component chamber formed to be isolated from each other in the main body, A suction part is formed in a front lower region of the component chamber so that external air can be introduced; And a blower fan assembly configured to blow toward the rear in one region of the component chamber adjacent to the suction part. The method of claim 1, The blower fan assembly is inclined to be installed to blow toward the rear and rear upper region of the component chamber. The method of claim 1, The suction part has a suction port penetrating through the bottom surface of the component chamber, and a space keeping member is provided on the lower surface of the main body to form a space between the suction port and a predetermined mounting surface on which the main body is installed. microwave. The method according to any one of claims 1 to 3, The blower fan assembly has a blower fan and a blower fan housing for receiving the blower fan. The method of claim 4, wherein In the inner front region of the component chamber is provided a latching member having a latching latching portion provided on one side of the door to open the front opening of the cooking chamber, and an air duct integrally formed in the upper region of the latching member. And; The blowing fan housing is microwave oven, characterized in that formed integrally with the lower portion of the air duct.