KR200409107Y1 - Hood for exhausting inside air in the kitchen - Google Patents

Abstract

The present invention relates to an exhaust hood for discharging odors and harmful gases generated in the kitchen to the outside, comprising a porous plate formed with a plurality of holes on both sides of the exhaust fan, the air layer formed between the porous plate and the case A noise prevention part consisting of, and connected to one side of the duct, the chamber formed in the inclined surface to the lower side and the air divider consisting of a streamlined separation plate and the separator formed on one side of the chamber, and the first formed on both sides of the separator Provided is a kitchen exhaust hood having a discharge portion comprising a discharge port and a second discharge port.

The kitchen exhaust hood according to the present invention purifies the polluted air introduced through the duct with a carbon filter, and can smoothly move the purified air to the separator through a chamber formed with an inclined surface, thereby improving the exhaust efficiency, and the carbon filter. Air is separated by the streamlined separator and separator and sprayed to the lower side of the front side of the kitchen exhaust hood through the first discharge port to prevent odor, heat and harmful gases generated from gas stoves and cookware. By preventing the indoor air from being contaminated and discharging the exhaust air in the direction of the inlet through the second outlet, the contaminated air remaining at the place where the suction power of the inlet cannot reach is easily discharged through the inlet. Easily detachable, efficient filtering is possible.

In addition, the noise generated when the exhaust fan operates is passed through the holes of the perforated plate formed on both sides of the exhaust fan and the air layer formed at intervals of 60 mm between the perforated plate and the case to reduce some noise. In addition, since the noise reflected back by the case is reduced once again by the above-described action, it is possible to cook in a comfortable environment, such as to reduce the inconvenience caused by the noise generated in the exhaust fan during cooking.

Exhaust, Hood, Gas Range, Noise Control

Description

Hood for exhausting inside air in the kitchen}

1 is a perspective view of a conventional exhaust hood.

2 is a side cross-sectional view of a conventional exhaust hood.

Figure 3 is a side cross-sectional view of another conventional exhaust hood.

Figure 4 is a perspective view of a kitchen exhaust hood according to the present invention.

Figure 5 is a side cross-sectional view of the kitchen exhaust hood according to the present invention.

Figure 6 is a side view showing a state of use of the kitchen exhaust hood according to the present invention.

Explanation of symbols on the main parts of the drawings

10 exhaust part 11 exhaust fan

12 intake port 13 exhaust port

14 case 20: noise protection

21: porous plate 22: air layer

30: air partition 31: partition plate

32: duct 33: handle

34: carbon filter 35: guide plate

36: slope 37: chamber

38: separator 39: separator

40: discharge part 41: first discharge port

42: second outlet 50: kitchen exhaust hood

The present invention relates to a kitchen exhaust hood, and more particularly to the kitchen exhaust hood to reduce the noise generated at this time, as well as to prevent contamination of the indoor air by the smell and heat and harmful gases generated in the kitchen. It is about.

1 is a perspective view of a conventional exhaust hood, FIG. 2 is a side sectional view of a conventional exhaust hood, and FIG. 3 is a side sectional view of another conventional exhaust hood.

As shown in FIGS. 1 and 2, the exhaust hood, which has been used in the related art, is partially divided by a partition plate 131 formed in the exhaust port 113 by the exhaust fan 111. It is sent to the discharge port 141 through the duct 132 and the guide plate 135, and to discharge the exhaust air sent to the discharge port 141 to the front lower side of the exhaust hood 150, or as shown in FIG. The exhaust air discharged from the discharge port 141 to the front lower side of the exhaust hood 150 is horizontally moved along the outer surface of the inlet port 112 by the guide tuck 142 formed at the discharge port 141.

When the exhaust hood 150 as shown in FIG. 2 is used, an air curtain is formed in the front so that polluted air such as odor and noxious gas cannot escape to the room, but the intake port 112 is located in front of the inlet 112. Since the suction force of 112 does not reach, there is a problem in that the polluted air in front of the intake port 112 cannot be discharged efficiently. When the exhaust hood 150 as shown in FIG. Since it is discharged horizontally toward 112, the polluted air can be efficiently discharged through the inlet 112 and the exhaust port 113, but the polluted air generated from the gas range and the cooking utensils spreads into the room, contaminating indoor air. There was this.

In addition, since the noise generated from the exhaust fan 111 of the exhaust hood 150 is large, the stress-induced stress caused by the operation of the exhaust hood 150 is restricted by using a broadcasting medium such as a radio. There was this.

The present invention is to provide a kitchen exhaust hood for solving the above problems.

The kitchen exhaust hood according to the present invention purifies the polluted air introduced through the duct with a carbon filter, and can smoothly move the purified air to the separator through a chamber formed with an inclined surface, thereby improving the exhaust efficiency, and the carbon filter. Air is separated by the streamlined separator and separator and sprayed to the lower side of the front side of the kitchen exhaust hood through the first discharge port to prevent odor, heat and harmful gases generated from gas stoves and cookware. By preventing the indoor air from being contaminated and discharging the exhaust air in the direction of the inlet through the second outlet, the contaminated air remaining at the place where the suction power of the inlet cannot reach is easily discharged through the inlet. Easily detachable, efficient filtering is possible.

Another purpose is that the noise generated when the exhaust fan is operating passes through the holes of the perforated plate formed on both sides of the exhaust fan and the air layer formed at 60 mm intervals between the perforated plate and the case. It reduces the noise reflected back by the case, and once again by the above action to reduce the inconvenience caused by the noise generated in the exhaust fan during cooking, the purpose is to enable cooking in a comfortable environment have.

Kitchen exhaust hood according to the present invention for achieving the above object constitutes a porous plate formed with a plurality of holes on both sides of the exhaust fan, the noise prevention portion consisting of an air layer formed between the porous plate and the case, the duct It is connected to one side of the discharge chamber consisting of a chamber having an inclined surface formed on the lower side and an air divider formed of a streamlined separator and an isolation section formed on one side of the chamber, and the first discharge port and the second discharge port formed on both sides of the separator Construct wealth.

Looking at the configuration of the kitchen exhaust hood of the present invention for solving the above problems as follows.

Figure 4 is a perspective view of a kitchen exhaust hood according to the present invention, Figure 5 is a side cross-sectional view of the kitchen exhaust hood according to the present invention, Figure 6 will be described as a side view showing a state of use of the kitchen exhaust hood according to the present invention.

First, the kitchen exhaust hood 50 is composed of an exhaust unit 10, the noise prevention unit 20, the air splitting unit 30 and the discharge unit 40.

 The exhaust part 10 of the kitchen exhaust hood 50 includes an exhaust fan 11 formed inside the case 14, an intake port 12 formed under the exhaust fan 11, and an exhaust port formed on the upper part. It consists of 13.

In addition, the noise prevention part 20 constitutes a porous plate 21 having a plurality of holes formed at both sides of the exhaust fan 11, and is spaced apart from the porous plate 21 and the case 14 by a predetermined distance. It is made of an air layer 22 formed.

The porous plate has a thickness of 1 mm and forms a plurality of holes having a diameter of 1 mm, but achieves a porosity of 1%. The air layer 22 is 60 mm between the porous plate 21 and the case 14. It is preferable to form at intervals.

In addition, the air splitter 30 includes a split plate 31 for dividing the air discharged from the exhaust port 13 and a duct 32 formed to flow the air divided by the split plate 31. The chamber 37 and the chamber 37 having the carbon filter 34 having the handle 33 formed at the end of the duct 32 and the inclined surface 36 at the lower side thereof and the guide plate 35 formed at both sides thereof. It consists of a streamlined separator plate 38 and the separator 39 formed in one side of the.

The carbon filter 34 is formed between the duct 32 and the chamber 37, but removes the exhaust filter (not shown) formed in the inlet 12 so that the carbon filter 34 can be easily attached and detached. It is preferable to use, and the separator 38 is preferably made of a streamline so that the air moving through the chamber 37 can be divided and moved smoothly.

In addition, the discharge portion 40 is formed on both sides of the separator 39 is composed of a first discharge port 41 and the second discharge port 42.

The discharge portion 40 is preferably formed vertically downward so that the first discharge portion 41 discharges the purified air to the floor, and the second discharge hole 42 is purified in the inlet 12 direction. It is preferable to be formed to be horizontal to the direction of the inlet 12 so that the air can be discharged.

Looking at the operation according to the configuration as described above are as follows.

First, when power is applied to the kitchen exhaust hood 50, the exhaust fan 11 is operated.

When the exhaust fan 11 is operated, noise is generated in the exhaust fan 11. The kitchen exhaust hood 50 according to the present invention has a large capacity by simultaneously performing intake and exhaust with one exhaust fan 11. Therefore, the noise generated by the exhaust fan 11 is large.

The noise generated at this time is generated while passing through the holes of the porous plate 21 formed on both sides of the exhaust fan 11 and the air layer 22 formed at 60 mm intervals between the porous plate 21 and the case 14. Some noise is reduced by the frictional loss, and the noise reflected and returned by the case 14 is once again reduced by the above action.

The noise preventing part 20 made of the porous plate 21 and the air layer 22 used in the kitchen exhaust hood 50 of the present invention is made in the most efficient configuration by its own experiment. The noise measured before installing the unit 20 is compared with the noise measured after installing the noise prevention unit 20.

Noise dB (A) before installation Porosity (%) Air layer (mm) Noise dB (A) after installation Reduction amount dB (A)    58.0 One 60 55.6 2.4 One 120 55.7 2.3 2 60 56.0 2.0 2 120 56.1 1.9 5 60 56.8 1.2 5 120 56.1 1.9 10 60 57.1 0.9 10 120 56.5 1.5

The above results are measured under a condition in which the thickness of the porous plate 21 is constant at 1 mm and the hole diameter formed in the plate is 1 mm, and as shown in the table, when the porosity of the porous plate 21 is 1%. It showed the best noise reduction effect and did not show any significant difference in the air gap 22 between 60mm and 120mm.

In other words, the noise prevention part 20 used in the kitchen exhaust hood 50 of the present invention is affected by the porosity formed in the porous plate 21 rather than the gap of the air layer 22, and has a thickness of 1 mm. While forming a plurality of holes having a diameter of 1mm having a porosity of 1%, an effective noise reduction phenomenon is caused by the volume ratio of the holes formed in the porous plate 21 per total volume of the porous plate 21.

In addition, polluted air such as odor generated from the kitchen and heat and harmful gas are sucked from the inlet 12 formed at the lower portion by the suction force of the exhaust fan 11, and are discharged to the exhaust port 13 and discharged at the same time. A portion of the portion is divided by the partition plate 31 formed in the exhaust port 13 to flow to the duct 32.

The contaminated air flowing through the duct 32 as described above is a chamber 37 composed of a guide plate 35 and the inclined surface 36 after the odor is removed by the carbon filter 34 formed at the end of the duct 32. Smoothly moved to the separation plate 38 through, the purified and moved air is smoothly divided in the streamlined separation plate 38 and the isolation table 39 formed on one side of the chamber 37, the first discharge port ( 41) and the second discharge port 42 are discharged.

Then, the purified air discharged in the vertical direction from the first discharge port 41 forms an air curtain in the bottom direction to prevent the air from being contaminated from the gas range and the cooking utensils from spreading to the room, thereby preventing the indoor air from being contaminated. At the same time, the suction air of the intake port 12 is applied to the contaminated contaminated air of the portion where the purified air discharged horizontally from the second discharge port 42 toward the intake port 12 does not reach the suction force of the intake port 12. By moving to the space, the contaminated air is easily discharged through the inlet 12 and the exhaust port 13.

At this time, the exhaust filter (not shown) which is a basic component of the intake port 12 and the duct 32 which is a position where the handle 33 is formed is easily detachable from the carbon filter 34. By installing between the chambers 36, the carbon filter 34 is easily attached and detached, thereby making maintenance easy and efficient filtering.

The kitchen exhaust hood according to the present invention purifies the polluted air introduced through the duct with a carbon filter, and can smoothly move the purified air to the separator through a chamber formed with an inclined surface, thereby improving the exhaust efficiency, and the carbon filter. Air is separated from the streamlined separator and separator and sprayed to the lower side of the front side of the kitchen exhaust hood through the first outlet so that the polluted air such as odor and heat generated from the gas range and cookware and harmful gases are By preventing the indoor air from being contaminated and discharging the purified air in the direction of the inlet through the second outlet, the contaminated air remaining in the place where the suction power of the inlet cannot reach is easily discharged through the inlet. The filter can be easily attached and detached for efficient filtering.

In addition, the noise generated when the exhaust fan operates is passed through the holes of the porous plate formed on both sides of the exhaust fan and the air layer formed at 60 mm intervals between the porous plate and the case to reduce some noise. In addition, since the noise reflected by the case is reduced once again by the above-described action, it is a useful design to make cooking in a comfortable environment, such as to reduce the inconvenience caused by the noise generated in the exhaust fan during cooking.

Claims (3)

A case formed with an intake port and an exhaust port connected to the exhaust fan, a partition plate for dividing the exhaust port, and a duct for distribution of the contaminated air; In the kitchen range hood to discharge with The noise preventing part 20 includes a porous plate 21 having a plurality of holes formed on both sides of the exhaust fan 11, and an air layer 22 formed between the porous plate 21 and the case 14. ); Is connected to one side of the duct 32, consisting of a chamber 37, the inclined surface 36 formed on the lower side and a streamlined separation plate 38 and the separator 39 formed on one side of the chamber 37 An air splitter 30; The exhaust hood for the kitchen, characterized in that the discharge portion 40 consisting of the first discharge port 41 and the second discharge port 42 formed on both sides of the separator 39. The method of claim 1, The porous plate 21 has a thickness of 1mm, a hole diameter formed of 1mm, having a porosity of 1%, the kitchen exhaust hood, characterized in that formed with a distance of 60mm. The method of claim 1, The exhaust hood for kitchen, characterized in that the carbon filter 34 is formed between the duct (32) and the chamber (37).

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