JP2017090006A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range hood capable of effectively capturing steam and the like without allowing it to flow out of a hood part, even in a situation where a large amount of steam, lamp black and the like exceeding suction capacity of a suction fan is generated temporarily.SOLUTION: A range hood 1 is the range hood 1 which includes: an exhaust duct part 10 including a suction fan 12 inside; a hood part 20 connected to the exhaust duct part 10 with an opening 21 facing downward; and a distributing plate 30 arranged at the opening 21 of the hood part 20. The distributing plate 30 includes: a main distributing plate 31 arranged at the opening 21 of the hood part 20 by having an interval with respect to an inner peripheral edge of the hood part 20; and an auxiliary distributing plate 32 formed so that an area is narrower than that of the main distributing plate 31, deviated to the upper side with respect to the main distributing plate 31 at the opening 21 of the hood part 20, and arranged so as not to vertically overlap with the main distributing plate 31.SELECTED DRAWING: Figure 2

Description

  The present invention includes an exhaust duct portion having a suction fan therein, a hood portion formed in a flat shape having a substantially rectangular opening and connected to the exhaust duct portion with the opening directed downward, and an opening of the hood portion The present invention relates to a range hood having a baffle plate disposed on the surface.

  A range hood for collecting water vapor, smoke, oily smoke, etc. generated by cooking and forcibly exhausting it outdoors is installed above a cooking utensil such as a gas range installed in a kitchen of a house.

  As such a range hood, an exhaust duct part provided with a suction fan inside, a hood part formed in a flat shape having a substantially rectangular opening and connected to the exhaust duct part with the opening facing downward, A shallow type range hood having a current plate arranged at an opening of a hood portion is known. For example, in Patent Document 1, a rectangular rectifying plate is disposed at an opening with respect to the inner peripheral edge of the opening of the hood part formed in a flat rectangular shape with a small thickness, and the inner peripheral edge of the hood part A shallow type range hood configured to suck air from a gap between the outer periphery of the current plate is described. In such a shallow range hood, suction can be performed at a high flow rate in the gap provided in the inner peripheral edge portion of the hood portion, so that water, smoke, oil smoke, etc. can be used without using a deep hood portion. Can be collected efficiently.

JP 2013-195049 A

  However, in the conventional shallow type range hood, the gap between the inner peripheral edge of the hood part and the outer peripheral edge of the rectifying plate is narrowed in order to increase the collection efficiency of water vapor and the like. For example, if a large amount of water vapor that temporarily exceeds the suction capacity of the suction fan is generated, the water vapor is trapped in the hood. There was a problem that there was a possibility that it would flow out of the hood without being collected.

  The present invention has been made in view of such a problem, and its purpose is to provide the water vapor, etc. even in a situation where a large amount of water vapor, smoke, oily smoke, etc. temporarily exceeding the suction capacity of the suction fan is generated. An object of the present invention is to provide a shallow range hood that can be effectively collected without flowing out of the hood outside.

  The range hood of the present invention includes an exhaust duct part provided with a suction fan inside, a hood part formed in a flat shape having a substantially rectangular opening and connected to the exhaust duct part with the opening facing downward, A rectifying plate disposed in the opening of the hood portion, wherein the rectifying plate is disposed in the opening of the hood portion at a distance from the inner periphery of the hood portion. Auxiliary rectification which is formed so that the area is smaller than the main rectifying plate and the plate is shifted to the upper side with respect to the main rectifying plate and does not overlap with the main rectifying plate at the opening of the hood portion And a board.

  In the range hood of the present invention, in the above configuration, it is preferable that the main rectifying plate and the auxiliary rectifying plate are each formed in a substantially rectangular shape.

  In the range hood of the present invention, in the above configuration, the main rectifying plate and the auxiliary rectifying plate are arranged adjacent to each other in such a manner that the sides are parallel to each other and the sides are shifted from each other in the vertical direction. Is preferred.

  According to the present invention, even in a situation where a large amount of water vapor, smoke, oily smoke or the like temporarily exceeding the suction capacity of the suction fan is generated, the water vapor is effectively collected without flowing out of the hood portion. A shallow range hood that can be provided can be provided.

It is a front view which shows an example of the range hood which is one embodiment of this invention. It is sectional drawing which shows schematically the internal structure of the range hood shown in FIG. It is a bottom view of the range hood shown in FIG. (A) which shows typically arrangement | positioning of the baffle plate in the modification of the range hood shown in FIG. 2, (b) is sectional drawing, (b) is a bottom view. It is a bottom view which shows typically arrangement | positioning of the baffle plate in the other modification of the range hood shown in FIG. (A)-(d) is a bottom view which shows typically arrangement | positioning of the baffle plate in the further another modification of the range hood shown in FIG. 2, respectively. (A)-(d) is sectional drawing which shows typically arrangement | positioning of the baffle plate in the further another modification of the range hood shown in FIG. 2, respectively.

  Hereinafter, the range hood of the present invention will be described more specifically with reference to the drawings.

  As shown in FIG. 1, the range hood 1 which is one embodiment of this invention is installed above cooking utensils 2, such as a gas range installed in the kitchen of a house, for example. The range hood 1 collects water vapor, smoke, oily smoke, etc. generated by cooking using the cooking utensil 2 and can forcibly exhaust it to the outdoors.

  The range hood 1 can be installed along the wall of the kitchen, for example. For example, when the cooking utensil 2 is installed in an open kitchen (island kitchen), the range hood 1 is installed by hanging from the ceiling. Can be variously changed.

  As shown in FIG. 2, the range hood 1 is a shallow range hood and includes an exhaust duct portion 10, a hood portion 20, and a current plate 30.

  The exhaust duct portion 10 includes a duct body 11 formed in a rectangular tube shape having a rectangular cross section by a thin steel plate such as stainless steel. The lower end side of the duct body 11 is a suction port, and the upper end side is an exhaust port that communicates with the outside (outdoors) of a house or the like via a duct or an exhaust hole (not shown). In addition, the shape of the duct main body 11 can be variously changed.

  A suction fan 12 is disposed inside the duct body 11. As the suction fan 12, various types that operate using an electric motor (not shown) as a drive source, such as a sirocco fan, can be used. By operating the suction fan 12, it is possible to suck water vapor, smoke, oily smoke, and the like from the suction port of the duct body 11 and exhaust them outdoors. Although not shown in detail, a configuration in which a filter is attached to the suction port of the duct body 11 can also be adopted.

  The hood portion 20 is formed in a flat box shape having a small vertical dimension (a shallow depth) with respect to the width dimension and the depth dimension, for example, by a thin steel plate such as stainless steel, and the opening 21 faces downward. And connected to the lower end of the duct body 11. In the illustrated case, the hood portion 20 is connected to the duct body 11 such that the center in the width direction is shifted to the left side in front view with respect to the axial center of the duct body 11. It is also possible to connect them so as to coincide with the axial center of the shaft or connect the center in the width direction to the right side in front view with respect to the axial center of the duct body 11. As shown in the drawing, the inner peripheral edge of the hood portion 20 can be provided with an inward flange 22 for preventing dripping of oil drops over the entire periphery. A configuration in which only a part of the inner peripheral edge is provided or a configuration in which the inward flange 22 is not provided may be employed.

  As shown in FIG. 3, the hood portion 20 has a rectangular shape in plan view, and the opening 21 is also formed in a rectangular shape. In addition, as long as the shape of the opening 21 is formed in a substantially rectangular shape, a notch or the like may be provided on the inner peripheral edge thereof. The width dimension and depth dimension of the food part 20 are set larger than the width dimension and depth dimension of the cooking utensil 2, respectively. Thereby, as shown in FIG. 1, the food | hood part 20 can be arrange | positioned above the cooking utensil 2, and can cover the whole upper direction of the cooking utensil 2. FIG. In addition, the food | hood part 20 is arrange | positioned 80 cm or more away from the cooking utensil 2 upwards. By providing such a hood portion 20 at the lower end of the duct body 11, the collection area that can be sucked by the duct body 11 is spread over the entire upper part of the cooking utensil 2, and water vapor generated by cooking using the cooking utensil 2 Smoke, oily smoke, etc. can be collected effectively.

  As shown in FIG. 3, the rectifying plate 30 is disposed in the opening 21 of the hood portion 20 with a gap S <b> 1 between the opening 21 and the inner periphery of the opening 21. As shown in FIG. 2, in the range hood 1 of this invention, the baffle plate 30 is comprised by the main baffle plate 31 and the auxiliary | assistant baffle plate 32, and is set as the structure which has arrange | positioned these in steps.

  More specifically, the main rectifying plate 31 is formed into a substantially rectangular thin plate shape by using a thin steel plate such as stainless steel, and is disposed in the opening 21 in a horizontal posture along the opening 21. The main rectifying plate 31 is arranged at a predetermined interval with respect to the hood portion 20, that is, the inner peripheral edge of the opening 21 on each of the three sides to form a gap S <b> 1.

  In the case shown in the figure, the main rectifying plate 31 is arranged in the opening 21 along the opening 21, that is, the height of the lower surface thereof coincides with the height of the lower end of the hood portion 20. It is also possible to adopt a configuration in which the plate 31 is arranged slightly shifted above or below the lower end of the hood portion 20.

  Like the main rectifying plate 31, the auxiliary rectifying plate 32 is formed into a thin plate having a substantially rectangular shape by using a thin steel plate such as stainless steel, but the area of the auxiliary rectifying plate 32 in plan view is the main rectifying plate. It is smaller than the area of the plate 31. In the present embodiment, as can be seen from FIG. 3, the auxiliary rectifying plate 32 is set to have the same depth as the main rectifying plate 31, but the width is narrower than the main rectifying plate 31. (In the case of illustration, about 1/3), the area is made smaller than the main rectifying plate 31.

  The distance between the main rectifying plate 31 and the inner peripheral edge of the hood portion 20 is larger than the other portions on the left side (the side opposite to the direction of displacement of the duct body 11) in FIGS. 32 is arranged in a horizontal posture along the opening 21 in the large gap portion of the opening 21 of the hood portion 20. A gap S <b> 1 is also provided between the auxiliary rectifying plate 32 and the inner peripheral edge of the hood portion 20 with an interval equivalent to that between the main rectifying plate 31 and the inner peripheral edge of the hood portion 20.

  Although not shown in detail, the main rectifying plate 31 and the auxiliary rectifying plate 32 are detachably attached to the hood portion 20 using, for example, fastening members such as brackets and screws, and fitting means.

  As can be seen from FIG. 2, the auxiliary rectifying plate 32 is displaced upward with respect to the main rectifying plate 31 and is disposed so as not to overlap vertically with respect to the main rectifying plate 31. In the case shown in the drawing, the main rectifying plate 31 and the auxiliary rectifying plate 32 are arranged such that the side sides 31a and 32a extending in the depth direction are parallel to each other, and the side sides 31a and 32a are shifted from each other in the vertical direction. It is arranged adjacent to. With such an arrangement, a gap S <b> 2 opened in the vertical direction is provided between the main rectifying plate 31 and the auxiliary rectifying plate 32.

  The height dimension of the gap S2 is preferably set to about 1 cm to 10 cm, for example, and more preferably set to 3 cm to 4 cm. By setting the height dimension of the gap S2 to such a dimension, an appropriate flow velocity can be generated in the air sucked from the gap S2 when the suction fan 12 is operated.

  Since the auxiliary rectifying plate 32 is arranged so as to be shifted upward with respect to the main rectifying plate 31 arranged along the opening 21 of the hood portion 20, the lower portion of the auxiliary rectifying plate 32 inside the hood portion 20. A space R opened downward with an area corresponding to the auxiliary rectifying plate 32 is formed. That is, in the hood part 20, the auxiliary rectifying plate 32 is disposed so as to be shifted upward with respect to the main rectifying plate 31, thereby forming a deep portion. The hood unit 20 can temporarily store water vapor, smoke, oily smoke, and the like in the space R.

  In the range hood 1 of the present invention having the above configuration, the hood unit 20 collects water vapor, smoke, oily smoke, etc. generated by cooking using the cooking utensil 2 by operating the suction fan 12. The air can be sucked from the gaps S1 and S2 provided in the opening 21 and exhausted outdoors. At this time, when the oil smoke hits the surface of the main rectifying plate 31 or the auxiliary rectifying plate 32, the oil contained in the oil smoke adheres to the surface of the main rectifying plate 31 or the auxiliary rectifying plate 32, and the hood portion that is difficult to clean. Intrusion of oil into the inside of 20 can be suppressed.

  Moreover, in the range hood 1 of the present invention, the main rectifying plate 31 and the auxiliary rectifying plate 32 are disposed in the opening 21 leaving the gap S1 at the inner periphery thereof so that the opening area of the opening 21 is narrowed. It is possible to efficiently collect water vapor, smoke, oily smoke and the like from the gap S1 by increasing the air flow velocity in the inner peripheral edge of the hood portion 20, that is, the gap S1, during the suction operation with the suction fan 12 activated.

  Further, in the range hood 1 of the present invention, the rectifying plate 30 disposed in the opening 21 of the hood portion 20 is divided into a main rectifying plate 31 and an auxiliary rectifying plate 32, and the auxiliary rectifying plate 32 is located above the main rectifying plate 31. In addition to the gap S1, the opening 21 is provided with a gap S2 defined between the main rectifying plate 31 and the auxiliary rectifying plate 32. Thereby, the fall of the flow velocity in the center part of the opening 21 can be suppressed, and the water vapor | steam, smoke, oil smoke, etc. which were directed to the said center part can be collected and exhausted effectively. Therefore, in order to suppress a decrease in the flow velocity at the central portion of the opening 21, it is unnecessary to use a suction fan 12 with increased suction capability or to keep the suction fan 12 continuously operated. The amount of electricity can be reduced.

  When the height dimension of the gap S2 between the main rectifying plate 31 and the auxiliary rectifying plate 32 is 20 mm, it is 1.3 times as large as the case where only one rectifying plate is provided in the opening 21. It was confirmed from experiments that the collecting effect was obtained.

  The height dimension of the gap S <b> 2 between the main rectifying plate 31 and the auxiliary rectifying plate 32 can be adjusted by the amount of shift of the auxiliary rectifying plate 32 to the upper side with respect to the main rectifying plate 31. Therefore, the clearance S2 can be set to an appropriate interval with which a desired flow rate can be obtained with a simple configuration.

  Further, in the range hood 1 of the present invention, the side plates 31a and 32a extending in the depth direction of the main rectifying plate 31 and the auxiliary rectifying plate 32 are parallel to each other, and the side sides 31a and 32a are in the vertical direction. By arranging adjacently so as to be in a shifted posture, the gap S2 can be opened in the vertical direction. Accordingly, the oil smoke or the like directed toward the gap S2 can be sucked into the gap S2 after being directly applied to the surface of the auxiliary rectifying plate 32 from the gap S2 without being sucked into the hood portion 20. The oil component can be attached to the surface of the auxiliary rectifying plate 32. Therefore, even if the opening 21 is provided with the gap S2 in addition to the gap S1, the amount of oil that enters the inside of the hood portion 20 that is difficult to clean can be suppressed.

  Furthermore, in the range hood 1 of the present invention, the auxiliary rectifying plate 32 is shifted upward with respect to the main rectifying plate 31, thereby providing a space R opened downward in the lower portion of the auxiliary rectifying plate 32. . Accordingly, even if a large amount of water vapor, smoke, oily smoke, or the like that temporarily exceeds the suction capability of the suction fan 12 is generated, the large amount of water vapor or the like can be temporarily stored in the space R. At this time, the water vapor or the like stored in the space R can be efficiently sucked not only from the gap S1 but also from the gap S2 formed between the main rectifying plate 31 and the auxiliary rectifying plate 32. Therefore, a large amount of temporarily generated water vapor, smoke, oily smoke or the like can be effectively collected by the hood unit 20 without being discharged to the outside of the hood unit 20 and can be exhausted outdoors.

  Furthermore, in the range hood 1 of the present invention, since the main rectifying plate 31 and the auxiliary rectifying plate 32 are detachably attached to the hood part 20, respectively, even when oil or the like adheres and becomes dirty, These can be removed from the hood part 20 and easily cleaned. Further, by dividing the rectifying plate 30 into the main rectifying plate 31 and the auxiliary rectifying plate 32, each of the main rectifying plate 31 and the auxiliary rectifying plate 32 is compared with the case where the rectifying plate 30 is configured by one piece. Since the main rectifying plate 31 and the auxiliary rectifying plate 32 can be housed in a kitchen sink and cleaned, the cleaning operation can be further facilitated.

  Furthermore, in the range hood 1 of the present invention, the main flow rectifying plate 30 is divided into the main flow rectifying plate 31 and the auxiliary flow rectifying plate 32 so that the main flow rectifying plate 30 is compared with the case where the flow rectifying plate 30 is constituted by one piece. Each of 31 and the auxiliary | assistant baffle plate 32 can be reduced in size. Thereby, the attachment or detachment operation | work with respect to the food | hood part 20 of the main rectifying plate 31 or the auxiliary | assistant rectifying plate 32 can be made easy. For example, even if the hood part 20 is a wide type whose width dimension is larger than the height dimension between the hood part 20 and the cooking utensil 2, the rectifying plate 30 is connected to the main rectifying plate 31 and the auxiliary rectifying unit. By adopting a configuration separated from the plate 32, the main rectifying plate 31 and the auxiliary rectifying plate 32 can be easily attached and detached without causing interference with the cooking utensil 2.

  Furthermore, in the range hood 1 of the present invention, the main rectifying plate 31 and the auxiliary rectifying plate 32 are arranged so as not to overlap each other in the vertical direction. The entire surface can be easily wiped and cleaned without removal.

  In the range hood 1 of the present invention, the above effect can be obtained while the hood portion 20 is formed in a flat shape. Therefore, the range hood 1 is preferably a shallow type with high design that is preferably applied to an open kitchen or the like. can do.

  4A and 4B schematically show the arrangement of the current plate in the modification of the range hood shown in FIG. 2, FIG. 4A is a sectional view, FIG. 5B is a bottom view, and FIG. 5 shows another range hood shown in FIG. It is a bottom view which shows typically arrangement | positioning of the baffle plate in a modification. 4 and 5, only the portions of the hood portion 20 and the rectifying plate 30 of the range hood 1 are schematically shown, and the other portions are omitted. 4 and 5, members corresponding to those described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown as a modified example in FIG. 4, the auxiliary rectifying plate 32 may be configured to be spaced from the main rectifying plate 31 in the width direction. In other words, the side 32 a of the auxiliary rectifying plate 32 may be arranged so as to be shifted in the width direction with respect to the side 31 a of the main rectifying plate 31. Even in the case of such a configuration, the gap S2 between the main rectifying plate 31 and the auxiliary rectifying plate 32 is desired depending on the shift amount in the upper side and the width direction of the auxiliary rectifying plate 32 with respect to the main rectifying plate 31. It can be set to an appropriate interval at which the flow rate can be obtained.

  In addition, the color of the main rectifying plate 31 and the color of the auxiliary rectifying plate 32 may be different from each other. In this case, for example, the main rectifying plate 31 may be colored in red (shaded in FIG. 4), and the auxiliary rectifying plate 32 may be colored in white. In this case, only one of the main rectifying plate 31 and the auxiliary rectifying plate 32 can be colored, and the other can be used as a raw material such as stainless steel without coloring the other. In this way, by making the color of the main rectifying plate 31 and the color of the auxiliary rectifying plate 32 different from each other, the design or aesthetics of the range hood 1 can be enhanced.

  Furthermore, by preparing various types of auxiliary rectifying plates 32 that are colored in various colors, it is possible to arbitrarily select the auxiliary rectifying plates 32 of various colors according to the user's preference. In this case, as the main rectifying plate 31 and the auxiliary rectifying plate 32, those that are colored in the same color can be used.

  In the case shown in FIG. 2, the auxiliary rectifying plate 32 is arranged on one side in the width direction with respect to the main rectifying plate 31, but as shown in FIG. The auxiliary rectifying plate 32 may be arranged on the front side or the rear side. In this case as well, the auxiliary rectifying plate 32 can be arranged in the depth direction with respect to the main rectifying plate 31 without being spaced.

  6 (a) to 6 (d) are bottom views schematically showing the arrangement of rectifying plates in still another modified example of the range hood shown in FIG. 2, and FIGS. 7 (a) to 7 (d) It is sectional drawing which shows typically arrangement | positioning of the baffle plate in the further another modification of the range hood shown in FIG. 2, respectively. In FIGS. 6 and 7, only the hood portion 20 and the rectifying plate 30 of the range hood 1 are schematically shown, and the other portions are omitted. Further, members corresponding to those described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the case shown in FIG. 2, only one auxiliary rectifying plate 32 is arranged in the opening 21 in addition to the main rectifying plate 31, but as shown in FIG. In addition to 31, a plurality of auxiliary rectifying plates 32 may be arranged. As an example of such a configuration, FIG. 6A shows a case where auxiliary rectifying plates 32 are arranged on both sides in the width direction with respect to the main rectifying plate 31, and FIG. FIG. 6C shows a case where auxiliary rectifying plates 32 are arranged on both sides in the depth direction and one side in the width direction with respect to the plate 31, and FIG. 6C shows both sides in the width direction and the depth direction with respect to the main rectifying plate 31. FIG. 6 (d) shows a case where auxiliary rectifying plates 32 are arranged on both sides in the depth direction and both sides in the width direction with respect to the main rectifying plate 31, respectively. Indicates. Even in these cases, the auxiliary rectifying plates 32 can be arranged with respect to the main rectifying plate 31 without being spaced in the depth direction or the width direction. As shown in FIGS. 6 (a) to 6 (d), by arranging a plurality of auxiliary rectifying plates 32 around the main rectifying plate 31, according to the arrangement of gas ports of the cooking utensil 2 and the like. The spaces R or gaps S2 can be provided at a desired plurality of locations inside the hood portion 20.

  In the case shown in FIG. 2, the auxiliary rectifying plate 32 is arranged in the opening 21 in a horizontal posture along the opening. However, as shown in FIG. It can also be set as the structure which inclined and arrange | positioned the board 32 with respect to the horizontal direction. In this case, the inclination angle and the inclination direction of the auxiliary rectifying plate 32 can be arbitrarily set.

  Further, when the plurality of auxiliary rectifying plates 32 are arranged in the opening 21 in addition to the main rectifying plate 31, the heights of the auxiliary rectifying plates 32 are set to each other as shown in FIG. Different stages can be arranged. In this case, as shown in FIG. 7B, not only the plurality of auxiliary rectifying plates 32 provided on the same side with respect to the main rectifying plate 31 are arranged in multiple stages, but also as shown in FIG. 7C. It is also possible to provide a plurality of auxiliary rectifying plates 32 on both sides of the main rectifying plate 31 and arrange these auxiliary rectifying plates 32 in multiple stages on each side. In the case shown in FIG. 7C, the height of the auxiliary rectifying plate 32 adjacent to one side of the main rectifying plate 31 and the height of the auxiliary rectifying plate 32 adjacent to the other side can be made different.

  Further, in the case shown in FIG. 2, the auxiliary rectifying plate 32 is arranged with an interval (gap S <b> 1) with respect to the inner peripheral edge of the hood portion 20. However, as shown in FIG. The current plate 32 may be configured to abut on the inner peripheral surface of the hood portion 20.

  It goes without saying that the present invention is not limited to the configuration described in the above embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, in the embodiment, the main rectifying plate 31 and the auxiliary rectifying plate 32 are formed in a substantially rectangular shape. However, the present invention is not limited to this, and for example, illumination or the like is provided on the lower surface of the hood portion 20. When provided, in order to avoid the part, it can be formed in another shape provided with a notch or the like.

  Moreover, in the said embodiment, although the main rectifying plate 31 and the auxiliary | assistant rectifying plate 32 are set as the structure attached detachably to the hood part 20, respectively, they shall be set as the structure fixed to the hood part 20. You can also.

DESCRIPTION OF SYMBOLS 1 Range hood 2 Cooking utensil 10 Exhaust duct part 11 Duct body 12 Suction fan 20 Hood part 21 Opening 22 Inward flange 30 Rectifier plate 31 Main rectifier plate 31a Side 32 Auxiliary rectifier plate 32a Side S1 Gap S2 Gap R Space

Claims (3)

An exhaust duct part provided with a suction fan, a hood part formed in a flat shape having a substantially rectangular opening and connected to the exhaust duct part with the opening facing downward, and disposed in the opening of the hood part A rectifying plate, and a range hood,
The current plate is
A main current plate arranged at an interval with respect to the inner peripheral edge of the hood portion at the opening of the hood portion;
An auxiliary rectifying plate that is formed smaller in area than the main rectifying plate, and that is disposed so as not to overlap the main rectifying plate up and down with respect to the main rectifying plate at the opening of the hood portion, A range hood characterized by comprising:   The range hood according to claim 1, wherein the main rectifying plate and the auxiliary rectifying plate are each formed in a substantially rectangular shape.   The range hood according to claim 2, wherein the main rectifying plate and the auxiliary rectifying plate are arranged adjacent to each other in such a manner that the sides are parallel to each other and the sides are shifted in the vertical direction.

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