KR101689882B1 - Microwave oven having hood - Google Patents

Abstract

The present invention relates to a hood-use microwave oven. In the present invention, the intake passage through which air sucked through the intake port is driven by the driving of at least two hood fan assemblies is formed to be relatively shorter than the exhaust passage through which the air exhausted through the indoor exhaust port or the outdoor exhaust port flows. Therefore, according to the present invention, since the hood function is performed more efficiently, there is an advantage that the diffusion of air including pollutants generated in the cooking process in the cooking appliance is reduced.

A hood-use microwave oven, a hood fan assembly, an intake air passage,

Description

Microwave oven having hood < RTI ID = 0.0 >

The present invention relates to a microwave oven, and more particularly, to a microwave oven having a hood function.

A microwave oven is a cooking device that uses microwaves to cook food. Among such microwave ovens, particularly, a microwave oven having a hood function is referred to as a microwave oven combined with a hood or an OTR type microwave oven. The hood-use microwave oven is provided with a hood fan for sucking air containing contaminants, for example, water, oil, and odor substances, generated in the course of cooking food in a cooking device provided below the hood. In addition, the hood-use microwave oven exhausts or filters the air containing the contaminants to the outside, and then discharges the air to the room.

However, the conventional microwave oven combined with a hood is disadvantageous in that it can not sufficiently suck air containing contaminants generated during a cooking process in a cooking appliance. This may be due to insufficient output of the hood fan or due to the narrowness of the flow path.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hood-use microwave oven configured to perform a hood function more efficiently.

According to an aspect of the present invention, there is provided a hood-use microwave oven comprising: at least two hood fan assemblies; An air intake passage through which air containing contaminants sucked into the interior of the hood fan assembly flows by driving the hood fan assembly; And an exhaust passage through which air containing pollutants discharged to the outside by driving the hood fan assembly flows; And the intake passage is formed to be relatively shorter than the exhaust passage.

According to another aspect of the present invention, there is provided a hood-use microwave oven comprising: a cavity provided with a cooking chamber and having an indoor exhaust port on a front surface thereof; A base plate provided below the cavity and having an inlet port; An intake passage formed between the bottom surface of the cavity and the upper surface of the base plate; A back plate provided behind the cavity; An outer case installed above the cavity and having an outdoor exhaust port on an upper surface thereof; An exhaust passage formed between the rear surface of the cavity and the front surface of the back plate, and between the upper surface of the cavity and the bottom surface of the out case; And at least two hood fan assemblies installed on the exhaust passage corresponding to the rear of the intake port, each hood fan assembly including one fan motor and two hood fans; Wherein when the hood fan assembly is driven, air containing contaminants sucked through the inlet port flows into the intake passage, is sucked into the intake portion of the hood fan, is discharged to the exhaust portion of the hood fan, Flows through the exhaust passage and is discharged to the outdoor exhaust port or the indoor exhaust port.

According to the present invention, since the hood function is performed more efficiently, there is an advantage that the diffusion of the air including the pollutant generated in the cooking process in the cooking appliance is reduced.

Hereinafter, a first embodiment of a microwave oven combined with a hood according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a first embodiment of a hood-use microwave oven according to the present invention, FIG. 2 is a front view showing the main part of the first embodiment of the present invention, and FIG. 3 is a front view of the main part of the first embodiment of the present invention FIG.

1, a microwave oven combined with a hood (hereinafter referred to as a "microwave oven" for convenience of description) is a microwave oven for cooking food in a cooking device provided below the microwave oven, such as a gas range or a gas oven range And a hood function for sucking the air containing pollutants generated and exhausting the air to the room or the outside. In other words, the microwave oven sucks air containing foreign substances generated in the cooking process in the cooking apparatus, filters the inhaled air, and then discharges the air into the room or discharges it to the outside of the room.

More specifically, the front plate 110, the aperture plate 120, the bottom plate 130, and the inner plate 140 form the cavity 10 of the microwave oven. The front plate 110, the upper plate 120, and the bottom plate 130 form a front surface, an upper surface, and a rear surface of the cavity 10, respectively. The inner plate 140 forms both side surfaces and a rear surface of the cavity 10.

The front plate 110 is provided with an indoor exhaust port 111. The indoor air outlet 111 serves as an outlet through which air containing contaminants is sucked into the microwave oven, filtered, and then discharged to the room. The indoor air outlet 111 is connected to a portion of the upper end of the front plate 110 corresponding to the upper portion of the upper plate 120, .

In the cavity 10, a cooking chamber 11 is provided. The cooking chamber 11 is a place where cooked food is cooked. The cooking chamber 11 is formed substantially surrounded by the upper plate 120, the bottom plate 130, and the inner plate 140.

The base plate 150 and the back plate 160 are fixed to the lower and the rear ends of the cavity 10, respectively. The base plate 150 and the back plate 160 form a bottom surface and a rear surface of the microwave oven, respectively. At this time, the upper surface of the base plate 150 is vertically spaced from the bottom surface of the bottom plate 130, and the front surface of the back plate 160 is spaced from the rear surface of the inner plate 140. A part of the base plate 150 is positioned such that its rear end is inclined downwardly toward the rear.

And an air inlet 151 is formed in the base plate 150. The intake port 151 serves as an inlet for sucking air containing contaminants. The air inlet 151 is formed by cutting a part of the base plate 150. Although not shown, a filter for filtering air containing contaminants sucked through the air inlet 151 may be installed on the air inlet 151.

The outer case 170 is fixed to the upper and both sides of the cavity 10. The outer case 170 forms an upper surface and both side surfaces of the microwave oven. The outer case 170 is vertically and laterally spaced from the upper plate 120 and the inner plate 140. An outdoor air outlet 171 is formed at a rear end of the upper surface of the outer case 170. The outdoor air outlet 171 is selectively opened and closed by a cover member (not shown). The outdoor air outlet 171 serves as an outlet through which air containing contaminants is discharged outdoors.

Referring to FIG. 2, two hood fan assemblies 210 and 220 are installed on the upper surface of the base plate 150. The hood fan assemblies 210 and 220 suck air containing pollutants through the air inlet 151 and air containing the polluted air is sucked through the indoor air outlet 111 or the outdoor air outlet 171, As shown in Fig.

More specifically, the hood fan assemblies 210 and 220 are installed at the rear end of the upper surface of the base plate 150 corresponding to the rear of the air inlet 151. 1 is referred to as a first hood fan assembly 210 in FIG. 1, and a right hood in FIG. 1 is referred to as a second hood fan assembly 220. Referring to FIG.

The first and second hood fan assemblies 210 and 220 include one fan motor 211 and two hood fans 213 located on both sides of the fan motors 211 and 221 215) 223 (225). The fan motor 211 of the first hood fan assembly 210 is referred to as a first fan motor 211 and the fan motor 221 of the second hood fan assembly 220 is referred to as a second fan motor 221 It is called. Of the two hood fans 213 and 215 of the first hood fan assembly 210, the first hood fan 213 and the second hood fan 215 are referred to as the first hood fan 213 and the second hood fan 215, respectively, Of the two hood fans 223 and 225 of the second hood fan assembly 220, the left hood is referred to as the third hood fan 223, and the right hood is referred to as the fourth hood fan 225.

The first to fourth hood fans 213, 215, 223 and 225 are operated by driving the first and second fan motors 211 and 221, respectively. The first to fourth hood fans 213, 215, 223 and 225 are provided with intake portions 213A, 215A, 223A and 225A and exhaust portions 213B, 215B and 223B 225B. remind

The intake portions 213A, 215A, 223A and 225A of the first to fourth hood fans 213, 215, 223 and 225 are connected to the first and second fan motors 211 and 221, 215, 223, and 225 corresponding to the opposite sides of the first to fourth hood fans 213, 215, 223, and 225, respectively. The exhaust portions 213B, 215B, 223B and 225B of the first to fourth hood fans 213 to 215, 223 and 225 are connected to the first to fourth hood fans 213 and 215 (223) and (225).

The first and second hood fan assemblies 210 and 220 are substantially fixed to the fan bracket 230. The fan bracket 230 is disposed between the rear surface of the inner plate 140 and the front surface of the back plate 160. The fan bracket 230 is provided with an opening 241 corresponding to the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, ) 243, 245, and 247 are formed. At this time, both end portions of the fan bracket 230 may extend to both side ends of the back plate 160, that is, inside the both side surfaces of the out case 170. The intake passage 13 and the exhaust passage 15, 17 can be partitioned by the fan bracket 230 substantially.

On the other hand, the intake passage 13 and the exhaust passage 15 (17) are formed in the microwave oven. The intake passage 13 is sucked through the intake port 151 by driving the first and second hood fan assemblies 210 and 220 to be connected to the first to fourth hood fans 213 and 215 223) 225, the air containing contaminants sucked into the intake portions 213A, 215A, 223A, and 225A flows. The exhaust passages 15 and 17 are discharged through exhaust portions 213B, 215B, 223B and 225B of the first to fourth hood fans 213, 215, 223 and 225 And air containing pollutants discharged into the indoor or outdoor through the indoor exhaust port 111 or the outdoor exhaust port 171 flows.

The intake passage 13 is formed at a lower portion of the microwave oven between the bottom plate 130 and the base plate 150. The intake passage 13 is connected to the intake portions 213A, 215A, 223A, and 225A of the intake port 151 and the first to fourth hood fans 213, 215, 223, .

The exhaust passages (15) and (17) include first and second exhaust passages (15) and (17). The first exhaust passage 15 is formed at a rear portion of the microwave oven between the inner plate 140 and the back plate 160. The second exhaust passage 17 is formed on the upper part of the microwave oven between the upper plate 120 and the outer case 170. The upper and lower ends of the first exhaust passage 15 are connected to exhaust ports 213B and 215B of the outdoor exhaust port 171 and the first to fourth hood fans 213, 215, 223 and 225 223B (225B). The front and rear ends of the second exhaust passage (17) communicate with the indoor exhaust port (111) and the upper end of the first exhaust passage (15). Therefore, the air containing the pollutants discharged to the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, and 225, Flows through the exhaust passage 15 and is discharged to the outside through the outdoor air outlet 171 or flows through the first and second air discharge passages 15 and 17 and is discharged to the room through the indoor air outlet 111 .

The first exhaust passage (15) is formed substantially by the first air barrier (241). In other words, the first air barrier 241 is composed of two, and is located between the inner plate 140 and the back plate 160. The lower end of the first air barrier 241 is positioned outside the exhaust portion 213B of the first hood fan 213, respectively. The upper ends of the first air barrier 241 are positioned at both side ends of the outdoor air outlet 171 or outside the outdoor air outlet 171, respectively. Accordingly, the first exhaust passage 15 may be formed substantially between the inner plate 140 and the back plate 160 between the first airbars 241.

Exhaust guides 243 and 245 are provided in the first exhaust passage 15. The exhaust guides 243 and 245 are installed at the exhaust ports 213B, 215B, 223B and 225B of the first to fourth hood fans 213, 215, 223 and 225, And the first exhaust passage (15) corresponding to the first exhaust passage (171). For this purpose, the exhaust guides 243 and 245 are composed of two. Hereinafter, the first exhaust guide 243 and the second exhaust guide 245 are referred to as relatively left and right in FIG. 1, respectively.

The lower ends of the first and second exhaust guides 243 and 245 are located between the exhaust portions 213B and 215B of the first and second hood fans 213 and 215, 4 hood pan 223 (225). The upper ends of the first and second exhaust guides 243 and 245 are positioned at the positions where the outdoor air outlet 171 is divided into three halves. Air containing contaminants discharged from the exhaust part 213B of the first hood fan 213 and air containing contaminants discharged from the second hood fan 215 and the second hood fan 223 by the first exhaust guide 243, The air containing the pollutants discharged from the exhaust portions 215B and 223B of the exhaust pipe 223B is partitioned. And the air containing contaminants discharged from the exhaust portions 215B and 223B of the second and third hood fans 215 and 223 by the second exhaust guide 245, The air containing contaminants discharged from the exhaust part 225B of the exhaust pipe 225 is partitioned. Accordingly, the first exhaust passage 15 may be substantially divided into three passages by the first and second exhaust guides 243 and 245. This is because the air containing pollutants discharged to the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, and 225 is mixed with each other, This is to minimize the interference phenomenon.

Although not shown in the drawing, air containing contaminants discharged from the exhaust part 215B of the second hood fan 215 is additionally contained in the first exhaust passage 15, and air containing contaminants discharged from the third hood fan 223 An exhaust guide for partitioning the air containing pollutants discharged from the exhaust part 223B of the exhaust pipe 223B. In such a case, the lower end of the additional exhaust guide will be positioned between the exhaust portion 215B of the second hood fan 215 and the exhaust portion 223B of the third hood fan 223. And may be positioned at the upper end of the exhaust guide 243 (245) and at a point where the outdoor air outlet 171 is divided into four halves.

In this embodiment, the first exhaust passage 15 may be formed such that the flow cross-sectional area decreases from the upstream side toward the downstream side, that is, from the lower side to the upper side. This is because the flow rate of air containing contaminants discharged through the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, In order to secure. The decrease in the flow cross sectional area of the first exhaust passage 15 can be substantially reduced by the first air barrier 241 and the exhaust guides 243 and 245, 241 and the exhaust guides 243, 245 are gradually decreased from the lower end toward the upper end.

The second exhaust passage 17 is formed substantially by the second air barrier 2 air barrier 251. In other words, the second air barrier 251 is composed of two, and is located between the upper plate 120 and the outer case 170. The rear end of the second air barrier 251 is connected to both ends of the outdoor air outlet 171 or the upper end of the second air barrier 251 located outside the outdoor air outlet 171. The front ends of the second air barrier 251 are located at both side ends of the indoor air outlet 111 or outside the indoor air outlet 111, respectively. In practice, air containing contaminants flowing through the second exhaust passage 17 by the second air barrier 251 and air flowing inside the microwave oven may be separated from each other. For example, electrical parts are provided on the upper surface of the upper plate 120 corresponding to the outside of the second air barrier 251, and the second air passage 251 is provided with the second exhaust passage 17, It is also possible that the air containing the contaminants flowing in the air and the air for cooling the air are partitioned. In other words, an electric field chamber may be formed on the upper surface of the upper plate 120 corresponding to the outside of the second air barrier 251.

An opening / closing device 260 is provided on the second exhaust passage 17. The opening and closing device 260 serves to selectively open or close the second exhaust passage 17 or to selectively communicate the first and second exhaust passages 15 and 17 with each other. This is because when air containing contaminants is discharged through the outdoor exhaust port 171, air containing contaminants flowing through the first exhaust flow path 15 flows into the second exhaust flow path 17 . In other words, when the air containing pollutants is discharged through the outdoor air outlet 171, the opening / closing device 260 may block the second air outlet passage 17, The flow paths 15 and 17 may be partitioned. When the air is exhausted through the indoor exhaust port 111, the opening / closing device 260 opens the second exhaust flow path 17 or opens the first and second exhaust flow paths 15 and 17, .

Although not shown, a filter is installed in the second exhaust passage 17. The filter functions to filter air containing pollutants flowing through the first and second exhaust passages (15) and (17) and discharged to the room through the indoor exhaust port (111).

Hereinafter, the operation of the first embodiment of the microwave oven combined with the hood according to the present invention will be described in more detail with reference to the accompanying drawings.

4 and 5 are longitudinal sectional views showing the flow of air according to the first embodiment of the microwave oven combined with the hood according to the present invention.

Referring to FIG. 4, when the first and second hood fan assemblies 210 and 220 are driven for the hood function, air containing pollutants is introduced into the interior of the microwave oven through the inlet port 151, (13). At this time, air containing contaminants may be primarily filtered by the filter installed on the air inlet 151.

The air containing contaminants sucked into the intake passage 13 flows into the intake passage 13 and flows into the intake passage 13 of the first to fourth hood fans 213, 215, 223, (213A), (215A), (223A), and (225A). Air containing contaminants sucked into the intake portions 213A, 215A, 223A, and 225A of the first to fourth hood fans 213, 215, 223, and 225, And is discharged into the first exhaust passage 15 through the exhaust portions 213B, 215B, 223B, and 225B of the fourth hood fans 213, 215, 223, and 225, respectively.

However, as described above, the flow cross sectional area of the first exhaust flow passage 15 is substantially reduced. The air is discharged through the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, and 225 by the exhaust guides 243 and 245 Air containing contaminants is separated from each other. Therefore, the air containing the pollutants discharged to the exhaust portions 213B, 215B, 223B, and 225B of the first to fourth hood fans 213, 215, 223, and 225, .

On the other hand, when the air containing contaminants sucked into the microwave oven is discharged to the room by driving the first and second hood fan assemblies 210 and 220, the outdoor air outlet 171 is shielded . The opening / closing device 260 maintains the state in which the second exhaust passage 17 is opened (or the first and second exhaust passage 15 and 17 are communicated).

Accordingly, air containing contaminants flowing through the first exhaust passage 15 is transferred to the second exhaust passage 17. The air containing the pollutants transferred to the second exhaust passage (17) is discharged to the room through the indoor exhaust port (111). At this time, the air containing the pollutant is filtered through the filter installed on the second exhaust passage (17) and is discharged to the room through the indoor exhaust port (111).

5, when the air sucked into the microwave oven is discharged to the outside by driving the first and second hood fan assemblies 210 and 220, the outdoor air outlet 171 Is opened. The opening / closing device 260 maintains the state in which the second exhaust passage 17 is blocked (or the first and second exhaust passages 15 and 17 are partitioned).

Therefore, the refrigerant is sucked through the suction port 151 and flows in the suction passage 13, and the exhaust portions 213B, 215B (or 215B) of the first to fourth hood fans 213, 215, 223B (225B) flows through the first exhaust passage (15). As described above, since the second exhaust passage 17 is shielded (or the first and second exhaust passages 15 and 17 are partitioned) by the opening / closing device 260, Air containing contaminants flowing through the first exhaust passage 15 is not transferred to the second exhaust passage 17.

The air containing contaminants flowing through the first exhaust passage (15) is discharged to the outside through the outdoor air outlet (171). Substantially, a duct or the like connected to the outdoor air outlet 171 may flow and be discharged to the outside of the room.

Hereinafter, a second embodiment of a microwave oven combined with a hood according to the present invention will be described in detail with reference to the accompanying drawings.

6 is a plan view showing a main part of a second embodiment of a microwave oven combined with a hood according to the present invention. The constituent elements of this embodiment, which are the same as the constituent elements of the above-described first embodiment of the present invention, are referred to with reference to Figs. 1 to 5, and a detailed description thereof will be omitted.

Referring to Fig. 6, in the present embodiment, intake guides 271, 273, and 275 are provided on the intake flow passage 13. The intake guides 271, 273, and 275 substantially partition the intake passage 13. In other words, the intake guides 271, 273, and 275 are configured such that the air containing the contaminant that is sucked through the inlet port 151 and flows in the intake passage 13 flows through the first to fourth hood fans 215 and 223A and 225A of the first and second intake manifolds 213 and 215 215 and 223 and 225 to be sucked.

More specifically, the intake guides 271, 273, and 275 are composed of three. Hereinafter, the first to third intake guides 271, 273, and 275 will be referred to as left to right in FIG. 6 for convenience of explanation. The first intake guide 271 is connected to the air containing the pollutant that is sucked into the intake 213A of the first hood fan 213 and the intake air 215A of the second hood fan 215, Contaminants Containing the Contaminants The second suction guide 273 divides the air sucked into the suction portion 215A of the second hood fan 215 and the air sucked into the suction portion 223A of the third hood fan 223 . The third intake guide 275 is connected to the intake port 225A of the fourth hood fan 225 and the air containing contaminants sucked into the intake port 223A of the third hood fan 223, The air containing the contaminants is separated.

To this end, the front ends of the first to third intake guides 271, 273, and 275 are positioned at the quarter where the rear end of the intake port 151 is divided. The rear end of the first intake guide 271 is positioned between the intake portion 213A of the first hood fan 213 and the intake portion 215A of the second hood fan 215. [ The rear end of the second intake guide 273 is positioned between the intake portion 215A of the second hood fan 215 and the intake portion 223A of the third hood fan 223. The rear end of the third intake guide 275 is positioned between the intake portion 223A of the third hood fan 223 and the intake portion 225A of the fourth hood fan 225. [

In the present embodiment, when the first and second hood fan assemblies 210 and 220 are driven, air containing contaminants sucked into the intake passage 13 through the intake port 151 is partitioned, The air is sucked into the intake portions 213A, 215A, 223A, and 225A of the first to fourth hood fans 213, 215, 223, and 225, respectively. Therefore, in the process of sucking the air contaminated by the intake portions 213A, 215A, 223A, and 225A of the first to fourth hood fans 213, 215, 223, and 225, Can be minimized.

Hereinafter, a third embodiment of a hood-use microwave oven according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 7 is a plan view showing a main portion of a third embodiment of a microwave oven combined with a hood according to the present invention. The constituent elements of this embodiment, which are the same as the constituent elements of the above-described first embodiment of the present invention, are referred to with reference to Figs. 1 to 5, and a detailed description thereof will be omitted.

Referring to Fig. 7, in this embodiment, the flow cross sectional area of the second exhaust passage 17 is gradually increased toward its downstream direction. That is, the front end of the first exhaust passage 15 has a relatively larger flow cross-sectional area than the rear end of the first exhaust passage 15. In other words, the left and right widths of the room air outlet 111 may be longer than the outdoor air outlet 171. For example, the gap between the second airbars 251 gradually increases from the rear end toward the front end, so that the flow cross-sectional area of the second exhaust passage 17 can be increased.

The increase in the flow cross-sectional area of the second exhaust passage 17 may include air containing pollutants flowing through the second exhaust passage 17, that is, contaminants discharged through the indoor exhaust port 111 To reduce the flow velocity of the air. More specifically, by decreasing the flow velocity of the air including pollutants exhausted through the indoor air exhaust port 111, that is, the air exhaust rate, air containing pollutants discharged through the indoor air exhaust port 111 is discharged to the user So as to reduce the phenomenon of directing or directing the microwave oven toward the microwave oven.

In other words, when the air containing pollutants is discharged to the outside through the outdoor air outlet 171, the flow cross sectional area of the first air outlet passage 15 is reduced to secure the flow rate. This is for securing the discharge amount of the air containing the pollutant discharged through the outdoor air outlet 171. However, when the air containing the pollutants is discharged to the room through the indoor air outlet 111, as described above, the air containing the pollutant directly flows to the user or the air is diffused to the front of the microwave oven It is necessary to reduce the flow rate. Therefore, in this embodiment, the flow cross-sectional area of the second exhaust passage 17 is reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

In the above-described embodiments, the electric component is provided on the upper surface of the upper plate, that is, the electric component chamber is provided. However, the electric component chamber in which the electric component is installed may be provided on one side of the cooking chamber It can be done.

Also, in the above-described embodiments, the hood function is performed by the two hood fan assemblies. However, the number of the hood fan assemblies may be three or more. However, when the number of the hood fan assemblies is three or more, the number of the intake guide and the exhaust guide may vary according to the number of the hood fan assemblies.

According to the cooking apparatus of the present invention as described above, the following effects can be expected.

First, in the present invention, air containing contaminants generated in the course of cooking food in a cooking device installed below a hood-use microwave oven by a plurality of hood fans is more efficiently sucked. Therefore, the diffusion of contaminants generated in the cooking process of the cooking device can be minimized.

Further, in the present invention, a plurality of hood fans of low output are used. Therefore, it is possible to secure a sufficient suction force by the hood fan and to minimize noise generated when the hood fan is driven.

In addition, in the present invention, since the hood fan is installed under the hood and the microwave oven corresponding to the lower part of the cooking chamber, the intake flow path through which the air sucked into the hood fan flows, And is formed to be relatively shorter than the exhaust flow path. Therefore, the noise generated when the hood fan is driven can be reduced as compared with the case where the intake passage is formed relatively longer than the exhaust passage.

In the present invention, the flow cross-sectional area of the exhaust passage communicating with the indoor exhaust port is gradually increased, so that the flow rate of the air including the pollutant discharged through the indoor exhaust port is reduced. Accordingly, the air containing the pollutants discharged through the indoor exhaust port can be prevented from being directly transmitted to the user or diffused into the room.

1 is an exploded perspective view showing a first embodiment of a hood-use microwave oven according to the present invention;

Fig. 2 is a front view showing the main part of the first embodiment of the present invention. Fig.

3 is a plan view showing the main part of the first embodiment of the present invention.

4 and 5 are longitudinal sectional views showing the flow of air according to the first embodiment of the microwave oven combined with the hood according to the present invention.

FIG. 6 is a plan view showing a main portion of a second embodiment of a microwave oven combined with a hood according to the present invention. FIG.

FIG. 7 is a plan view showing a main part of a third embodiment of a hood-use microwave oven according to the present invention; FIG.

Claims (15)

A hood fan assembly; An inlet port through which air containing contaminants is drawn into the interior by driving the hood fan assembly; An intake air passage communicating the intake port and the hood fan assembly with air sucked through the intake port; An exhaust port through which the air sucked through the inlet port is discharged to the outside by driving the hood fan assembly; And And an exhaust passage communicating the exhaust port and the hood fan assembly and through which air to be exhausted flows, The exhaust port An indoor exhaust port for exhausting the air sucked through the inlet port to the room, And an outdoor air outlet for discharging the air sucked through the air inlet port to the outside, The exhaust passage A first exhaust passage communicating the intake port and the outdoor exhaust port, And a second exhaust passage communicating the first exhaust passage and the room exhaust port, The second exhaust passage And a cross-sectional area of the flow path is increased toward the indoor exhaust port. The method according to claim 1, Wherein the intake passage is located below a cavity in which the cooking chamber is provided, And the exhaust passage is located behind and above the cavity. The method according to claim 1, Air containing pollutants flowing through the intake passage is sucked into the intake portion of the hood fan assembly, Wherein the air containing contaminants sucked into the intake portion of the hood fan assembly is discharged through the exhaust portion of the hood fan assembly and flows through the exhaust passage. delete The method according to claim 1, Wherein the outdoor air outlet is opened only when air containing contaminants is discharged outdoors. 6. The method of claim 5, Wherein the second exhaust passage is opened only when the air containing the pollutant is discharged to the room, or is communicated with the first exhaust passage. The method according to claim 1, Wherein the intake passage is divided into a number corresponding to the number of the hood fans constituting the hood fan assembly. The method according to claim 1, Wherein the first exhaust passage is formed so as to reduce the cross-sectional area of the flow passage toward the outdoor air outlet. The method according to claim 1, Wherein the exhaust passage is divided into a number corresponding to the number of the hood fans constituting the hood fan assembly. delete The method of claim 3, Further comprising an intake guide provided on the intake passage so that air containing contaminants flowing through the intake passage is divided and sucked into the intake section of the hood fan assembly. The method of claim 3, Further comprising an exhaust guide provided on the exhaust flow path and configured to separate air containing contaminants discharged from an exhaust part of the hood fan assembly. delete delete The method according to claim 1, Further comprising an opening / closing device installed on the second exhaust flow path and selectively opening / closing the second exhaust flow path.

Images